Liquid Crystal Patents (Class 348/790)
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Publication number: 20140063354Abstract: The present disclosure provides a liquid crystal display (LCD) device and a mold. The LCD device includes an LCD module. The LCD module includes a front frame, a middle frame, a backplane, an LCD panel, and a backlight module, the front frame acts as a front shell of the LCD device, and the backplane acts as a back shell of the LCD device. The from ham is a separate structure and comprises a plurality of member units, and the member units are strip-shaped or L-shaped. In the present disclosure, the front shell and the back shell, as two main components, can be directly removed, thereby reducing component types.Type: ApplicationFiled: September 12, 2012Publication date: March 6, 2014Inventors: Yanxue Zhang, Yuchun Hsiao
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Patent number: 8659707Abstract: According to one embodiment, a television receiver apparatus capable of operating with a battery, includes a receiver, a first switching module, a second switching module, and a power supply controller. The receiver is configured to receive first and second mode signals. The first switching module is configured to turn on/off a battery operation mode according to the first mode signal received by the receiver. The second switching module is configured to turn on/off a power saving mode according to the second mode signal received by the receiver. The power supply controller is configured to control power supply according to the modes set by the first and second switching modules.Type: GrantFiled: February 10, 2012Date of Patent: February 25, 2014Assignee: Kabushiki Kaisha ToshibaInventor: Takeshi Toyoda
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Patent number: 8659709Abstract: An object of the present invention is to obtain a display device having excellent display quality by appropriately modifying the chromaticity of images. In this display device, a correction processing part (CPU 30) determines a first chromaticity change amount stored in memory (31) on the basis of a first cumulative usage amount, which is the cumulative usage amount of an LED (17) up to a present time, the cumulative value having been measured by a counter (32), and the correction processing part also determines a second chromaticity change amount stored in the memory (31) on the basis of a second cumulative usage amount, which is the cumulative usage amount of the LED (17) up to a time when the chromaticity of a pixel is adjusted by a chromaticity adjusting part (CPU 30), the cumulative value having been measured by the counter (32).Type: GrantFiled: November 24, 2011Date of Patent: February 25, 2014Assignee: Sharp Kabushiki KaishaInventors: Tohru Hanaoka, Fumio Kokubo, Eiji Kurimoto, Ryoji Ishimura, Shota Inoue, Fumiaki Yamada
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Patent number: 8643781Abstract: Methods and systems for implementing video driving circuitry are disclosed. For example, in an embodiment, a system for driving a plurality of different types of video devices is disclosed. The system includes, for example, a System on a Chip (SoC) that itself includes a Liquid Crystal Display (LCD) controller circuit configured to generate digital video data, a first synchronization signal for controlling a first characteristic of the digital video data, and a second synchronization signal for controlling a second characteristic of the digital video data. The SoC further includes a delay circuit configured to variably delay the first synchronization signal and the second synchronization signal relative to the digital video data to generate a delayed first synchronization signal and a delayed second synchronization signal.Type: GrantFiled: December 29, 2010Date of Patent: February 4, 2014Assignee: Marvell Israel (M.I.S.L) Ltd.Inventors: Dan Ilan, Guy Nakibly, Eilon Argov
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Publication number: 20140009695Abstract: A backlight device of the present invention is provided with: a chassis having a bottom plate (22a) and a side plate; LED substrates (25) disposed on the bottom plate (22a) of the chassis in a manner so that one end face and the side plate face each other; LEDs disposed on the LED substrates (25); patterned wiring (35) electrically connected to the LEDs and disposed on the LED substrates (25); a first connector part (31) electrically connected to the patterned wiring (35) and disposed on, of respective end portions of the LED substrates (25), an end portion that has the one end face; a second connector part (32) electrically connected to the first connector part (31) with a connecting direction that is along the plane of the bottom plate (22a), the connecting direction also being, in a plan view, a direction parallel to a first side edge (22a1) that faces the one end face, or a direction directed from the side edge (22a1) toward the end portion (25b) that has the one end face at an acute angle with respect toType: ApplicationFiled: April 2, 2012Publication date: January 9, 2014Applicant: SHARP KABUSHIKI KAISHAInventor: Yasumori Kuromizu
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Publication number: 20140009697Abstract: An illumination device 12 of the present invention is provided with: a housing member 22 that has a bottom plate 22a, a side wall 22b, and a pair of protrusions 22c; a light guide plate 26 having a pair of first end faces 26d, a pair of second end faces 26b that extend in a direction intersecting the first end faces 26d, and a pair of recesses 26e at the respective first end faces 26d, the light guide plate being disposed in the housing member 22 in a manner so that the rear surface 26c thereof faces the bottom plate 22a and the recesses 26e respectively engage the protrusions 22c; a light source unit 2 having light sources 24 and being disposed in the housing member 22 in a manner so that the light sources 24 face at least the second end surfaces 26b of the light guide plate 26; and a frame 27 having a frame-shaped covering plate 27a covering the outer edges W of the plate surface 26a of the light guide plate 26, and a pressing part 27c that protrudes downwards from the covering plate 27a in a manner so as tType: ApplicationFiled: April 2, 2012Publication date: January 9, 2014Applicant: SHARP KABUSHIKI KAISHAInventor: Yasumori Kuromizu
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Publication number: 20140009696Abstract: A backlight device according to the present invention is provided with: a chassis having a bottom plate 22a and a side plate; LED substrates 25 disposed on the bottom plate 22a of the chassis in a manner so that one end surface of the LED substrates and the side plate face each other; LEDs disposed on the LED substrates 25 with the obverse side as the light exit side; a wiring pattern 35 disposed on the LED substrates 25; a first connector 31 connected to the wiring pattern 35 and disposed on the end on the side provided with the one end surface among the ends of the LED substrates 25; a second connecting member that is electrically connected to the first connector 31 with the direction of connection being a direction that is along the plate surface of the bottom plate 22a, forming in a plan view an angle with the first side edge 22a1 that faces the one end surface, and facing the first side edge 22a1 from the reverse side from the first side edge 22a1 sandwiching the first connector 31; and a power supply wiType: ApplicationFiled: April 2, 2012Publication date: January 9, 2014Applicant: SHARP KABUSHIKI KAISHAInventor: Yasumori Kuromizu
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Patent number: 8619201Abstract: A display apparatus having a display driving unit on a lower part is provided. The LCD display apparatus includes a signal processing unit which performs video decoding, video scaling, and conversion into high-quality video on an input video; and a driving unit which is disposed closer to a lower end of the LCD display apparatus than to an upper end of the LCD display apparatus, and drives a liquid crystal display (LCD) panel to display a video output from the signal processing unit on the LCD panel.Type: GrantFiled: September 13, 2012Date of Patent: December 31, 2013Assignee: Samsung Electronics Co., Ltd.Inventor: Jung-hwa Choi
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Publication number: 20130342766Abstract: The illumination device 10 according to the present invention includes: a housing member 22 having a bottom plate 22a and a side wall 22b; a light guide plate 26 disposed on the inside of the side wall 22b in a manner so that a gap is formed between the side wall 22b and the side edge face 26b of the light guide plate 26; a light source unit having a light source 24 and a light source substrate 25 and disposed in the gap in a manner so that the substrate surface 25a faces the side edge face 26b; an optical sheet 23 disposed on the front surface 26a side of the light guide plate 26 and having an outer edge 23d protruding towards the light source substrate 25 from the side edge face 26b in a manner so as to cover and hide the bottom plate 22a at the section where the gap is; and a circulation hole X that pierces the light source substrate 25 or the housing member 22 in a manner such that the outside communicates with the air space S1 enclosed by the side edge face 26b, the substrate surface 25a, the bottom platType: ApplicationFiled: March 9, 2012Publication date: December 26, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Yoshitake Ishimoto
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Patent number: 8610643Abstract: A display device and a method of the driving the same include a display panel assembly, a driving unit which drives the display panel assembly, and a serial peripheral interface which includes a plurality of registers, the plurality of registers being divided into groups of at least two blocks, and which receives external driving signals through serial communications and thereby controls the driving unit.Type: GrantFiled: August 21, 2007Date of Patent: December 17, 2013Assignee: Samsung Display Co., Ltd.Inventors: Se-Chun Oh, Ryu-Hwa Sung
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Publication number: 20130321717Abstract: The backlight unit 12 according to this invention includes a plurality of LEDs 24, an LED board 25, a reflection sheet 29, a chassis 22, a first attachment member 31, and a second attachment member 32. The LED board 25 has a first board insertion hole 25c and a second board insertion hole 25d. The second board insertion hole 25d is arranged closer to an end portion of the LED board 25 in an arranging direction of the LEDs 24 than the first board insertion hole 25c. The reflection sheet 29 has a first reflection sheet insertion hole 29d and a second reflection sheet insertion hole 29e. The first attachment member 31 has a first axial portion 31b and a first head portion 31a. The first axial portion 31b is passed through the first board insertion hole 25c. The first head portion 31a is fixed at a hole edge of the first board insertion hole 25c. The second attachment member 32 has a second axial portion 32b and a second head portion 32a.Type: ApplicationFiled: March 9, 2012Publication date: December 5, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Yasumori Kuromizu
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Publication number: 20130314618Abstract: In driving a liquid crystal panel of a liquid crystal display device of the present invention, when voltage applied to a gate line G1 is lowered to switch off a pixel P1, voltage applied to a gate line G2 and a gate line G3 rises to switch on a pixel P2 and a pixel P3. In such a case, timing t1 at which the voltage applied to the gate line G1 drops is set to be different from timing t3 at which the voltage applied to the gate lines G2, G3 rises. According to the driving method, ripples each having amplitude Vu1 and Vd1 that are generated in the storage capacitor line CS1 are less likely to be cancel out and attenuated. This improves display quality.Type: ApplicationFiled: February 1, 2012Publication date: November 28, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Ryo Yamakawa
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Publication number: 20130314616Abstract: The substrate 20 of the present invention includes pixel electrodes 25 formed in an area demarcated by a plurality of gate wiring lines 26 and source wiring lines 27 that intersect each other, and capacitance wiring lines 126 that are arranged in parallel with the gate wiring lines 26 and that form a capacitance with the pixel electrodes 25. The capacitance wiring lines 126 are arranged overlapping outer edges 125 and 125 of the adjacent pixel electrodes 25 and 25, and the following are formed on the capacitance wiring line 126: a first insulating film that covers the capacitance wiring line 126; a linear height-increasing part 30 formed on the first insulating film; and a second insulating film that covers the height-increasing part 30 and that includes a protruding band part 129 rising along the height-increasing part 30. The pixel electrodes 25 are above the second insulating film and are formed so the outer edges 125 ride up on the protruding band part 129.Type: ApplicationFiled: February 9, 2012Publication date: November 28, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Tatsuro Kuroda
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Publication number: 20130314617Abstract: The array substrate 20 of the present invention includes pixel electrodes 25 formed in an area demarcated by a plurality of gate wiring lines 26 and source wiring lines 27 that intersect each other, and capacitance wiring lines 126 that are arranged in parallel with the gate wiring lines 26 and that form a capacitance with the pixel electrodes 25. The capacitance wiring lines 126 are arranged overlapping outer edges of the adjacent pixel electrodes 25, and formed on the capacitance wiring line 126 are: a first insulating film that covers the capacitance wiring line 126; a second insulating film 29 that is an insulating film formed on the first insulating film, and that has a protruding band part 129 with a line width narrower than the capacitance wiring line 126 and arranged along the capacitance wiring line 126. The pixel electrodes 25 are above the second insulating film 29 and are formed so the outer edges 125 of the adjacent pixel electrodes 25 and 25 ride up on the protruding band part 129.Type: ApplicationFiled: February 9, 2012Publication date: November 28, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Tatsuro Kuroda
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Publication number: 20130293789Abstract: An illumination device according to the present invention is provided with a control substrate 40 mounted on a chassis 14 and a substrate cover 60 that is arranged to cover the control substrate 40, and the substrate cover 60 and the chassis 14 are formed of a conductive material. The substrate cover 60 includes attaching parts 64 attached to the chassis 14 and a plurality of contact pieces 70 that come into contact with the chassis 14. First contact pieces 70A that are arranged from among the plurality of contact pieces 70 at positions comparatively distant from the attaching parts 64 of the substrate cover 60 are configured to bend along the thickness direction with greater ease than second contact pieces 70B that are arranged from among the plurality of contact pieces 70 at positions comparatively near to the attaching parts 64 of the substrate cover 60.Type: ApplicationFiled: January 6, 2012Publication date: November 7, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Tatsuro Kuroda
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Patent number: 8558957Abstract: It is an object of the present invention to provide a lighting device realizing improvement in brightness of an intended area such as a center area of an irradiation surface. A lighting device 12 of the present invention includes a light source 17, a chassis 14 housing the light source 17, and an optical member 15a facing the light source 17. The optical member 15a has a light source overlapping portion DA overlapping with a light source arrangement area LA where the light source 17 is arranged, on the chassis 14, and a light source non-overlapping portion DN overlapping with a light source non-arrangement area LN where the light source 17 is not arranged. The light source overlapping portion DA has a surface facing the light source 17, the surface having a light reflectance greater than that of the light source non-overlapping portion DN.Type: GrantFiled: May 17, 2010Date of Patent: October 15, 2013Assignee: Sharp Kabushiki KaishaInventor: Masashi Yokota
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Publication number: 20130265503Abstract: The backlight device 24 according to the present invention is provided with: an LED substrate 30; an LED light source 28; a light guide plate 20 having a light entrance surface 20a on a side surface; a chassis 22 having a bottom plate and a side plate; and spacer members that regulate the distance between the side plate and the light guide plate 20. The side plate has three first side plates 22c and 22d on the surface of which an LED substrate 30 is arranged, and one second side plate 22b on the surface of which the LED substrate 30 is not arranged. The spacer members have an elastic spacer member 34a and a non-elastic spacer member 34b. The space between the first side plate 22c that is opposite the second side plate 22b, across the light guide plate 20, and the light guide plate 20 is regulated by the non-elastic spacer member 34b. The space between the other side plates 22b and 22d and the light guide plate 20 is regulated by the elastic spacer member 34a.Type: ApplicationFiled: December 15, 2011Publication date: October 10, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Mitsuru Hosoki
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Publication number: 20130258211Abstract: A white light emitting device including: a blue light emitting diode chip having a dominant wavelength of 443 to 455 nm; a red phosphor disposed around the blue light emitting diode chip, the red phosphor excited by the blue light emitting diode chip to emit red light; and a green phosphor disposed around the blue light emitting diode chip, the green phosphor excited by the blue light emitting diode chip to emit green light, wherein the red light emitted from the red phosphor has a color coordinate falling within a space defined by four coordinate points (0.5448, 0.4544), (0.7079, 0.2920), (0.6427, 0.2905) and (0.4794, 0.4633) based on the CIE 1931 chromaticity diagram, and the green light emitted from the green phosphor has a color coordinate falling within a space defined by four coordinate points (0.1270, 0.8037), (0.4117, 0.5861), (0.4197, 0.5316) and (0.2555, 0.5030) based on the CIE 1931 color chromaticity diagram.Type: ApplicationFiled: October 26, 2012Publication date: October 3, 2013Inventors: Chul Hee YOO, Young June JEONG, Young Sam PARK, Seong Yeon HAN, Ho Yeon KIM, Hun Joo HAHM, Hyung Suk KIM
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Publication number: 20130258071Abstract: The present invention relates to a liquid crystal panel, a liquid crystal display device and to a liquid crystal medium having a negative dielectric anisotropy ??.Type: ApplicationFiled: October 31, 2011Publication date: October 3, 2013Applicant: MERCK PATENT GMBHInventors: Eun-Kyu Lee, Seung-Eun Lee, Dong-Mee Song
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Publication number: 20130250186Abstract: An aircraft cockpit display includes among other things an LCD panel having a liquid crystal matrix, and backlight assembly for illuminating the liquid crystal matrix. The remainder of the display allows for single point failures within the architecture that impact only a portion of the primary display functions of the LCD panel.Type: ApplicationFiled: June 4, 2012Publication date: September 26, 2013Applicant: GE AVIATION SYSTEMS LIMITEDInventors: Mark Anthony Bushell, Brett Allen Eddy
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Publication number: 20130250187Abstract: An object of the present invention is to obtain a display device having excellent display quality by appropriately modifying the chromaticity of images. In this display device, a correction processing part (CPU 30) determines a first chromaticity change amount stored in memory (31) on the basis of a first cumulative usage amount, which is the cumulative usage amount of an LED (17) up to a present time, the cumulative value having been measured by a counter (32), and the correction processing part also determines a second chromaticity change amount stored in the memory (31) on the basis of a second cumulative usage amount, which is the cumulative usage amount of the LED (17) up to a time when the chromaticity of a pixel is adjusted by a chromaticity adjusting part (CPU 30), the cumulative value having been measured by the counter (32).Type: ApplicationFiled: November 24, 2011Publication date: September 26, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Tohru Hanaoka, Fumio Kokubo, Eiji Kurimoto, Ryoji Ishimura, Shota Inoue, Fumiaki Yamada
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Patent number: 8525927Abstract: The present invention provides a method for enlarging 4K2K resolution and a 4K2K resolution enlarging system using the method. The method includes (1) providing a 4K2K resolution enlarging system, which includes a TV control terminal and a timing controller that includes a first port module, a FHD/QFHD signal processing module, 3a D/2D signal processing module, a 4K/2K signal resolution enlarging module, and a second port module connected to a source driver IC; (2) receiving the external data signal and carrying out processing of the data signal to provide an output of FHD/QFHD format data signal to the timing controller; (3) the timing controller carrying out panel-related computation with the FHD/QFHD signal processing module and the 3D/2D signal processing module; and (4) the 4K/2K signal resolution enlarging module carrying out enlargement of 4K2K and supplying an enlarged data signal to the source driver IC.Type: GrantFiled: September 13, 2012Date of Patent: September 3, 2013Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.Inventor: Yuyeh Chen
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Publication number: 20130222705Abstract: An object is to prevent or reduce uneven brightness in a direct-type lighting device. A lighting device according to the present technology includes LEDs 28 arranged in a matrix on a bottom plate of the chassis and a reflector 26 including first and second side walls 26a, 26b each arranged between the LEDs 28 adjacent in a Y-axis direction and an X-axis direction, respectively. The LEDs 28 are configured to emit light toward an opening of the chassis. The first side wall 26a has a side surface 26a rising from a front surface 30a of an LED board 30 toward the opening of the chassis while being inclined. The first side wall 26a extends straightly along the X-axis direction and has a triangular cross-sectional shape taken along the Y-axis direction. The second side wall 26b has a prism-like shape rising from the front surface 30a toward the opening and has a rhombic outline in a plan view.Type: ApplicationFiled: November 24, 2011Publication date: August 29, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Takaharu Shimizu, Kaori Yamamoto
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Patent number: 8520150Abstract: It is an object of the present invention to provide a lighting device realizing reduction in cost and suppression of power consumption and suppressing generation of a lamp image. A lighting device 12 of the present invention includes a plurality of point light sources 80; a chassis 14 housing the point light sources 80 and having an opening 14b through which light from the point light sources 80 exits; and an optical member 15 (15a) facing the point light sources 80 and provided to cover the opening 14b. The point light sources 80 are arranged such that a light source high-density area LH where an arrangement interval thereof is relatively small and a light source low-density area LL where an arrangement interval thereof is relatively large are provided. Light reflection portions 50 reflecting lights from the point light sources 80 are formed in at least a region overlapping with the light source low-density area LL in the optical member 15 (15a).Type: GrantFiled: May 17, 2010Date of Patent: August 27, 2013Assignee: Sharp Kabushiki KaishaInventor: Masashi Yokota
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Publication number: 20130215336Abstract: An object of the present invention is to improve the rate at which light enters a display surface from an edge light-type lighting device and to improve the brightness of the display surface. A backlight device of the present invention is provided with: a light guide plate that has a light-receiving surface on a side face; and an LED light source 28 that is disposed so as to face the light-receiving surface of the light guide plate and covered by a lens 29. The lens 29 has a partially cylindrical shape, the cylinder axis thereof extending in the thickness direction of the light guide plate. Consequently, light leakage to the outside of the light guide plate in the thickness direction of the light guide plate can be prevented or mitigated. In addition, light can be diverged in a direction that is along the light-receiving surface of the light guide plate and perpendicular to the thickness direction of the light guide plate.Type: ApplicationFiled: November 2, 2011Publication date: August 22, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Hideki Miyata
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Patent number: 8502927Abstract: A method of displaying an image. The method includes acts of receiving pixel data and pixel timing and control signals corresponding to the image, and formatting the pixel data based on a selected communication standard and a transmitter bit rate that corresponds to a number of pixel data bits to be transmitted each transmitter clock cycle.Type: GrantFiled: August 17, 2010Date of Patent: August 6, 2013Assignee: CSR Technology Inc.Inventors: Chen Chen, Lei He
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Publication number: 20130194512Abstract: An electro-optical device includes: an electro-optical panel; and a casing supporting and protecting the electro-optical panel, wherein the casing has a first frame body made by die casting supporting the electro-optical panel through a fixing layer, a second frame body protecting a lower surface of the electro-optical panel, a third frame body protecting end edges of the electro-optical panel, and a fixing portion fixing the second frame body and the third frame body to each other by a clamping force working in a first direction, and the fixing portion or the second frame body has an interference portion preventing falling-off of the first frame body in a state where a force is not applied to the first frame body in the first direction.Type: ApplicationFiled: January 9, 2013Publication date: August 1, 2013Applicant: JAPAN DISPLAY WEST INC.Inventor: Japan Display West Inc.
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Patent number: 8493516Abstract: An LED module (MJ) wherein among apertures (21A to 21C) and pins (11A to 11C) to engage each other, the apertures (21A to 21C) are formed in a mounting board (20) and the pins (11A to 11C) are formed on a lens (10). The apertures (21A to 21C) and the pins (11A to 11C) regulate the directivity direction of the lens (10) to a specific direction by engaging each other in one kind of manner.Type: GrantFiled: March 15, 2010Date of Patent: July 23, 2013Assignee: Sharp Kabushiki KaishaInventor: Takaharu Shimizu
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Patent number: 8482679Abstract: A backlight unit (49) for a display device (69) provided with a liquid crystal display panel (59) comprises a chassis (41), a diffusion plate (43) supported by the chassis, and point-like light sources supported by mounting substrates (21) provided on the chassis. The point-like light sources comprise LEDs (22) mounted on the mounting substrates. The mounting substrates are connected to each other by connectors (25) to form rows (26) of the mounting substrates, and the rows (26) are arranged side by side. The rows of the mounting substrates each consist of two, short and long mounting substrates, and the rows are arranged in a mixed state in such a manner that each row consisting of the two, short and long mounting substrates is reversed with respect to each other. As a result, the positions of the connectors are not aligned rectilinearly in the direction in which the rows of the mounting substrate are arranged.Type: GrantFiled: February 17, 2010Date of Patent: July 9, 2013Assignee: Sharp Kabushiki KaishaInventor: Nobuhiro Kasai
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Publication number: 20130169890Abstract: To provide a display device capable of offering improved radiation performance of radiating heat generated from a driver IC arranged to drive a display panel. The display device (1) includes a display panel (10) arranged to display an image, a driver IC (17) electrically connected to the display panel via a connecting member (18) and arranged to drive the display panel, and a housing member that defines a case of the display device, wherein the housing member includes a first housing member (11) made from metal and attached to the display panel from a front side of the panel, and a second housing member (22) made from metal and attached to the display panel from a back side of the panel, and wherein the driver IC is held sandwiched between the first housing member and the second housing member.Type: ApplicationFiled: July 28, 2011Publication date: July 4, 2013Applicant: Sharp Kabushiki KaishaInventor: Yasumori Kuromizu
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Patent number: 8472166Abstract: A display panel includes a first end portion and a second end portion facing each other. A face panel is arranged above the front side of the display panel including a first extending portion and a second extending portion extending to the outside from the first and second end portions of the display panel. An adhesive element is provided on the display panel along its end portions to adhere the display panel to the face panel. A frame is arranged so as to being spaced apart from the display panel having a first supporting portion and a second supporting portion to support the first and second extending portions of the face panel. The first and the second extending portions of the face panel are sandwiched between the bezel and the first and second supporting portions of the frame so that the display panel does not contact with the frame.Type: GrantFiled: August 16, 2010Date of Patent: June 25, 2013Assignee: Japan Display Central Inc.Inventor: Jihei Kubo
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Publication number: 20130155335Abstract: An illuminating device (3) includes light emitting diodes (light sources) (5) and a light guide plate (7) that directs light from the light emitting diodes (5) in a predetermined propagation direction and emits the light to a liquid crystal panel (object to be irradiated) (2). The illuminating device includes a chassis (case) (9) that houses the light emitting diodes (5) and the light guide plate (7). The chassis (9) is provided with a supporting member (support) (12) for supporting the light guide plate (7).Type: ApplicationFiled: May 11, 2011Publication date: June 20, 2013Applicant: Sharpe Kabushiki KaishaInventor: Takahiro Yoshikawa
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Publication number: 20130148039Abstract: An object of the present invention is to provide a lighting device in which a problem is hardly caused by a hole formed in a chassis of the lighting device. A backlight unit (a lighting device) 1 according to the present invention includes an LED (a light source) 17, a flat cable (a flat conductor) 22 connected to the LED 17, a chassis 14 including a hole 14e, a cable protector (a flat conductor protector) 23 including a protection portion 24 and an insertion hole 24a extending through the protection portion 24. The chassis 14 houses the LED 17. The flat cable 22 is inserted through the insertion hole 24a. The flat conductor protector 23 is arranged such that the protection portion 24 is positioned between an edge of the hole 14e of the chassis 14 and a portion of the flat cable 22 that is positioned in the insertion hole 24a.Type: ApplicationFiled: September 16, 2011Publication date: June 13, 2013Inventors: Motoaki Okitsu, Yuki Horiguchi
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Publication number: 20130141652Abstract: An adverse effect of noise and the amount of electric wires are decreased by reducing the length of power supply lines arranged to supply electric power to light sources. An illuminating device (20) includes a chassis plate (22) having a square shape in a plan view, edge light type light sources (28) disposed along at least two opposing side faces of the chassis plate, power supply means (30) arranged to supply electric power to the light sources, and power supply lines (32) arranged to electrically connect the light sources and the power supply means, wherein one ends of the power supply lines are in connection with the power supply means at a substantial center of the chassis plate.Type: ApplicationFiled: May 19, 2011Publication date: June 6, 2013Inventor: Yasumori Kuromizu
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Publication number: 20130135538Abstract: Uneven brightness is less likely to be caused and good display quality is achieved. A lighting device includes a plurality of light emitting units each of which includes a base board and a plurality of light emitting components on the base board, a linear light source including the plurality of light emitting units that are arranged linearly, a light guide member having an end portion and provided such that the end portion faces the linear light source, a reflection sheet configured to reflect light from the linear light source, and a reflection cover provided close to the light guide member and corresponding to a gap that is generated between the light emitting units.Type: ApplicationFiled: July 5, 2011Publication date: May 30, 2013Applicant: Sharp Kabushiki KaishaInventor: Yasumori Kuromizu
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Publication number: 20130135537Abstract: Provided is an illuminating device capable of preventing luminance unevenness from developing therein. An illuminating device (1) includes a container-shaped backlight chassis (4), a reflection sheet (6) on a bottom plate (41) of the backlight chassis, a light guide plate (7) on the reflection sheet, light-emitting boards (5) sandwiched between wall plates (42) of the chassis and the light guide plate and including light-emitting elements (51) and a non-light-emitting element (54) on wiring boards (52), and a frame-shaped frame (11) arranged to cover the chassis. The reflection sheet includes covering pieces (62) on its peripheral portions that erect with respect to the bottom plate of the chassis to cover surfaces of the non-light-emitting elements.Type: ApplicationFiled: May 18, 2011Publication date: May 30, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Yasumori Kuromizu
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Publication number: 20130135539Abstract: An object of this invention is to suppress uneven brightness in the lighting device. The lighting device according to this invention includes LEDs 17, an LED board 18, a chassis 14, a reflection sheet 22, an optical member 15, a supporting pin 20, and a rivet 21. The reflection sheet 22 has a supporting pin through hole 22a and a rivet through hole 22b. The supporting pin 20 is mounted to the chassis 14 through the supporting pin through holes 22a. The supporting pin 20 supports the optical member 15. The rivet 21 is mounted to the chassis 14 through the rivet through hole 22b. The reflection sheet 22 has an opening 23. The opening 23 is arranged adjacent to or close to any one of the supporting pin through hole 22a and the rivet through hole 22b. The LED board 18 has a colored portion 24 arranged thereon.Type: ApplicationFiled: August 9, 2011Publication date: May 30, 2013Inventor: Daisuke Kamata
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Publication number: 20130128128Abstract: A backlight unit includes a chassis including a bottom plate and side plates rising toward a front side with an opening on a front side, LEDs housed in the chassis, an optical member arranged on an opening side of the chassis and through which light from the LED passes, a reflection member including inclined surfaces configured to lead the light from the LED toward the optical member, and a support pin attached to the bottom plate of the chassis and extending from an LED mounting surface toward the optical member such that a tip end of the support pin is in contact with the optical member to support it. The support pin is arranged between the LEDs and equally away from each of the LEDs.Type: ApplicationFiled: June 20, 2011Publication date: May 23, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Kaori Ikuta
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Publication number: 20130128129Abstract: Provided is an edge light type illuminating device, in which an adverse effect of noise and the amount of electric wires are decreased by reducing the length of power supply wires arranged to supply electric power to light sources. An illuminating device (20) includes a chassis plate (22) having a square shape in a plan view, edge light type light sources (28) disposed along at least one side face of the plate and another side face perpendicular to the one side face, power supply means (30) arranged to supply electric power to the light sources, and a power supply wire arranged to electrically connect the light sources and the means, wherein at least a portion of the power supply wire includes bridging wires (33ac, 33bd) arranged to connect the light sources perpendicular to each other.Type: ApplicationFiled: May 18, 2011Publication date: May 23, 2013Inventor: Yasumori Kuromizu
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Publication number: 20130120669Abstract: An edge light-type lighting device with which uneven brightness on a display surface hardly occurs or is less likely to occur even though a positioning structure for positioning a light guide plate is included is provided. A backlight unit 24 according to the present invention includes a light guide plate 20, an LED unit 32, a reflection sheet 26, a backlight chassis 22, and a positioning pin 40. The light guide plate 20 has a light entrance surface 20a on the side, a light exit surface 20b on the front, an opposite surface 20c on the back, and a cutout 38 at edges. The LED unit 32 is arranged opposite the light entrance surface 20a of the light guide plate 20. The reflection sheet 26 is arranged on the opposite surface 20c side. The backlight chassis 22 includes a bottom plate 22a and side plates 22b, 22c. The positioning pin 40 is provided on the backlight chassis 22 and for positioning the light guide plate 20 when fitted in the cutout 38. The positioning pin 40 is fitted in the cutout 38.Type: ApplicationFiled: May 25, 2011Publication date: May 16, 2013Inventor: Yasumori Kuromizu
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Publication number: 20130107134Abstract: In order to provide a lighting device such that a light source and a connector can be connected with increased reliability in a simple configuration, a lighting device according to the present invention is provided with: a light source including a light emitting portion and a conductive portion extending from an end portion of the light emitting portion; a power source supplying drive power to the light source; and connectors including a connecting terminal configured to connect the light source and the power source by sandwiching the conductive portion. The conductive portion includes a retaining section with a width greater than a width of an adjoining portion that prevents the conductive portion from coming off the connecting terminal by interfering with the connecting terminal.Type: ApplicationFiled: May 24, 2011Publication date: May 2, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Tatsuro Kuroda
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Patent number: 8434122Abstract: The invention relates to a device for delivering audio and video data. In such a device, the audio/video data travel together and are compressed along with the signaling data for the delivery of these audio/video data. Under current compression standards, these data are being increasingly compressed. This maximum compression proportionally complexifies the encoding and decoding of audio/video data. The appearance of network cables comprising six twisted pairs of wires makes it possible to produce networks having higher speed capacities. The object of the invention is not to increase speeds by using additional twisted pairs but to simplify the data traveling through the network.Type: GrantFiled: March 11, 2008Date of Patent: April 30, 2013Assignee: Sagem Communications SASInventors: Jean-Pierre Morard, Jean-Marc Nogier
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Publication number: 20130093966Abstract: A lighting device includes a cold cathode fluorescent tube (CCFT), a chassis housing the CCFT, and a retainer holding the CCFT such that the CCFT is allowed to be displaced with respect to a bottom plate of the chassis in a direction perpendicular to an axis of the CCFT. According to the lighting device, the CCFT can be deformed in a curved shape when an external force is applied from the chassis to the CCFT due to an error in a mounting pitch of the cold cathode fluorescent tube or thermal contraction of the chassis. This releases the external force, and thus the CCFT is less likely to be broken.Type: ApplicationFiled: May 24, 2011Publication date: April 18, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Tatsuro Kuroda
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Patent number: 8411136Abstract: In general, according to one embodiment, a video display apparatus includes a backlight, a signal processing module, a transmission-type display panel, and a lighting timing generation processing module. The signal processing module is configured to process an input video signal and output an output video signal for 2D display or 3D display. The transmission-type display panel is configured to control transmission of light supplied from the backlight according to the output video signal. The lighting timing generation processing module is configured to switch between a backlight lighting period for the 2D display and a backlight lighting period for the 3D display in such a manner that a time of a center of gravity of a figure formed by a response level-time curve in the backlight lighting period is later in the 3D display than in the 2D display.Type: GrantFiled: September 9, 2010Date of Patent: April 2, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Ken Ito
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Patent number: 8405785Abstract: A television display system including a display system controller, a transmitter, and an integrated timing controller. The display system controller receives pixel data and pixel timing and control data, and responsive to a pixel data format corresponding to a selected communication standard of a plurality of communication standards that includes LVDS and at least one of RSDS and mini-LVDS, provides formatted pixel data formatted according to the pixel data format of the selected communication standard. The transmitter receives the formatted pixel data, and transmits the formatted pixel data for receipt according to a pixel data rate corresponding to the selected communication standard.Type: GrantFiled: August 25, 2009Date of Patent: March 26, 2013Assignee: CSR Technology Inc.Inventors: David Auld, Lei He, Chen Chen, Gerard Kuang-Chang Yeh
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Publication number: 20130070168Abstract: In order to provide an LED light source and an LED backlight in which color variations in the chromaticity of light emitted from a light emitting surface are not produced and in which the brightness on a display screen is made uniform, an LED light source provided with an LED chip that emits light of a predetermined color and a sealing resin that contains a fluorescent material are included. The fluorescent material includes a plurality of fluorescent materials that emit excitation light of a plurality of different wavelengths within the excitation light wavelength range of the predetermined color, and the light emitting surface is formed in the shape of a diffusion lens portion that adjusts the light emitted and distributed. Also, the application regions of the adjacent LED light sources overlap each other, and thus it is possible to obtain an LED backlight.Type: ApplicationFiled: February 4, 2011Publication date: March 21, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Masashi Yokota
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Publication number: 20130057779Abstract: It is an object of present invention to improve wiring workability in a lighting device and to prevent the entry of dust or the like into the device. A backlight unit according to the present technology includes a chassis having hole portions, LEDs housed in the chassis as light sources, relaying and connecting part electrically connected to the LEDs from outside the chassis through the hole portion and relaying electric power supply to the LEDs, and a covering member covering a clearance between the hole portions and the relaying and connecting parts inserted therethrough.Type: ApplicationFiled: April 15, 2011Publication date: March 7, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Yoshiki Takata
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Patent number: 8373797Abstract: An image display apparatus includes an active-period interlaced-to-progressive (IP) converter configured to convert active periods (video periods) included in interlaced signals into progressive signals; a blanking-period IP converter configured to convert blanking periods included in the interlaced signals into progressive signals; a multiplexer configured to generate and output display data including both the progressive signals associated with the active periods and the progressive signals associated with the blanking periods; and a display unit configured to display the data output from the multiplexer. The blanking-period IP converter is configured to generate the progressive signals associated with the blanking periods by executing IP conversion in which values copied from data included in the interlaced signals or values corresponding to black pixels are set as pixel values of an interpolated field not included in field data of the interlaced signals.Type: GrantFiled: May 25, 2007Date of Patent: February 12, 2013Assignee: Sony CorporationInventors: Mikio Ishii, Shoji Kosuge, Hiroshi Higuchi
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Publication number: 20130033652Abstract: A backlight unit 12 includes LED boards 18 including LEDs 17, a light guide member 19 having an end portion facing the LEDs 17, a chassis 14 housing the LED boards 18 and the light guide member 19, holding members 23 fixed to the chassis 14 having the LED boards 18 therebetween, and restricting portions 26 restricting the positional relationship of the holding members 23 with respect to the LED boards 18 such that a gap G is provided between the holding members 23 and the LED boards 18. With this configuration, uneven brightness is less likely to occur in the lighting device.Type: ApplicationFiled: March 2, 2011Publication date: February 7, 2013Inventor: Yasumori Kuromizu
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Patent number: 8368820Abstract: A lighting device 12 of the present invention includes a light source 17, an external power source 21 arranged to supply drive power to the light source 17, and a relay connector 19 arranged to provide an electrical connection between the light source 17 and the external power source 21. The relay connector 19 includes a conductive resin layer 40 and an insulating resin layer 50 arranged on the periphery of the conductive resin layer 40. According to the construction, the conductive portion and the insulating portion of the relay connector 19 are both made of resin, and therefore can be formed by the same process, e.g., by two-shot molding. Further, the number of components can be reduced.Type: GrantFiled: July 18, 2008Date of Patent: February 5, 2013Assignee: Sharp Kabushiki KaishaInventor: Masashi Yokota