Color Tv Patents (Class 348/791)
  • Patent number: 10002559
    Abstract: An image display device includes a display unit that includes a plurality of display lines, an image data input unit that receives image data including data for each display line, and an image data transmission switching circuit that transmits the image data to the display unit.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: June 19, 2018
    Assignee: NEC DISPLAY SOLUTIONS, LTD.
    Inventor: Nozomu Kano
  • Patent number: 9818046
    Abstract: Embodiments relate to a data conversion unit including a color analysis portion configured to determine based on R (red), G (green) and B (blue) data signals among the R, G, B data signals and W (white) data signal for an input image whether or not the input image includes a pure color component; and a brightness adjustment portion configured to adjust brightness of the W data signal according to a hue of the pure color component included in the input image.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: November 14, 2017
    Assignee: LG Display Co., Ltd.
    Inventors: Sung Jin Kim, Jun Woo Jang, Sun Hee Park, Soo Yeon Jung
  • Patent number: 9684333
    Abstract: An electronic device is provided. The electronic device includes a first flexible member, a rigid member positioned on one surface of the first flexible member, and a second flexible member positioned on the one surface of the first flexible member in at least a part of a periphery of the rigid member. The first flexible member is attached to a case member of the electronic device with the rigid member and the second flexible member being interposed therebetween.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: June 20, 2017
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Kwang-Soo Han, Sang-In Baek, Jin-Hyuk Choi, Young-Oh Kim, Jae-Woo Lee, Jee-Young Jung
  • Patent number: 9442518
    Abstract: Implementations of a mounting wedge for a flexible material are described. According to various embodiments, a flexible material such as a fabric is laminated to a surface of a device, such as a portable computing device. At least some embodiments utilize a mounting wedge to secure an edge of the flexible material to the device, as well as for a mounting surface for a component of the device.
    Type: Grant
    Filed: July 21, 2014
    Date of Patent: September 13, 2016
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Kabir Siddiqui, Stephan Alexander Cummings
  • Patent number: 9411371
    Abstract: A support structure assembly for supporting a portable computing device includes a harness assembly, a platform, two first step structures, and a support bar. The harness assembly includes a strap and a plurality of connectors extending from the strap. The platform defines a first support surface configured to support the computing device. The two first step structures extend from the platform and are located at opposite ends of the first support surface. Each first step structure defines (i) a first socket formed in a first outer step surface and configured to releasably retain a connector of the plurality of connectors, and (ii) a second support surface opposite from the first outer step surface, non-coplanar with the first support surface, and configured to support the computing device. The support bar is connected to the platform.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: August 9, 2016
    Inventor: Rick Goren
  • Publication number: 20150146111
    Abstract: A liquid crystal display device includes LEDs, a liquid crystal panel 11, a chassis, a frame 13, positioning ribs 23, and step portions 30. The liquid crystal panel 11 is configured to display using light from the LEDs. The chassis is arranged on an opposite side of the liquid crystal panel 11 from a display surface that is for display. The frame 13 is arranged on the display surface side of the liquid crystal panel 11. The frame 13 holds at least the liquid crystal panel 11 and the LEDs with the chassis such that the liquid crystal panel 11 and the LEDs are sandwiched between the frame 13 and the chassis. The positioning rib 23 having a block-like shape projects from the frame 13 toward the chassis and includes a peripheral surface opposite a peripheral surface of the liquid crystal panel 11 for positioning the liquid crystal panel 11 relative to the display surface direction.
    Type: Application
    Filed: July 5, 2013
    Publication date: May 28, 2015
    Inventor: Akira Gotou
  • Publication number: 20150109537
    Abstract: The invention relates to the field of optoelectronics, and may be used in devices and of visualization, displaying, storage and processing of information, in particular in projection displays, etc. Video projector consists of a liquid crystal micro display based on structure FLCoS, and an optical unit of reading the information formed in the structure FLCoS, containing a light source and projection optics, optically coupled to the structure FLCoS, and a screen, onto which the information is projected. As the electro-optical material the low-voltage ferroelectric liquid crystal (FLC) with compensated helix providing physically realizable, continuous, halftone, hysteresis-free modulation characteristic is used in the structure FLCoS. Lasers of red, green and blue radiation serve as the sources of light in three different color channels RGB.
    Type: Application
    Filed: May 29, 2013
    Publication date: April 23, 2015
    Inventors: Igor Nikolaveich KOMPANETS, Aleksnadr Lvovich ANDREEV
  • Publication number: 20150077643
    Abstract: A backlight unit 12 (lighting device) includes LEDs (light sources) 17, a light guide plate 19, an LED board (light source board) 18, a chassis (mount member) 14 to which the LED board 18 is mounted, a screw member (board attachment member) 22, arrangement interval variation LEDs (arrangement interval variation light sources) 24. The light guide plate 19 includes an end surface (light entrance surface 19b) opposite the LEDs 17 and through which light from the LEDs 17 enters and a plate surface (light exit surface 19a) through which light exits. The LED board (light source board) 18 includes the LEDs 17 arranged at intervals along the end surface of the light guide plate 19. The screw member (board attachment member) 22 is arranged between the adjacent LEDs 17 to attach the LED board 18 to the chassis 14.
    Type: Application
    Filed: March 27, 2013
    Publication date: March 19, 2015
    Inventors: Ryo Yamakawa, Kuniaki Tanaka
  • Publication number: 20150055026
    Abstract: A liquid crystal display device is provided with: a light-emitting diode LED; a liquid crystal panel; a light guide plate having an end surface that is disposed in such a manner as to face the LED, and having edge portions that are disposed further to the outside than the ends of the liquid crystal panel; holding members comprising a frame and a chassis that hold the liquid crystal panel and the light guide plate in a form in which the liquid crystal panel and the light guide plate are sandwiched between a display surface and the opposite side thereof, and accommodating the LED therebetween; panel pressing sections provided to the frame; second screw attachment sections provided to the frame; second screw members that are attached to the second screw attachment sections, and secure the frame and chassis in an assembled state by sandwiching at least the chassis between the second screw attachment sections; and hole-like sections that are provided to the edge portions of the light guide plate, and through which
    Type: Application
    Filed: March 7, 2013
    Publication date: February 26, 2015
    Inventor: Jo Ikuta
  • Publication number: 20150009418
    Abstract: The present invention makes possible video expressions with increased feeling of brightness and increased contrast feeling and to be able to prevent the feeling of brightness and the contrast feeling from becoming unnatural during execution of the multi display. This video display device comprises: a control portion (a signal processing portion (1); an area-active-control/luminance-stretch-portion (4)) that controls a displaying portion (8) and a backlight portion (6); and a display instruction detection portion (13a) that detects display instructions of first and second input video signals. The control portion stretches and increases the luminance of the backlight portion (6), and also controls a light emitting portion enhancement processing according to a result of the detection.
    Type: Application
    Filed: July 19, 2012
    Publication date: January 8, 2015
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Toshiyuki Fujine, Yoji Shiraya
  • Publication number: 20140375899
    Abstract: A display device 10 according to this invention includes a display panel 11, a drive board 113, a flexible wiring 111, and a frame 13. The display panel 11 is configured to display an image on a front side. The drive board 113 is configured to control display driving of the display panel 11. The flexible wiring 111 having flexibility connects the display panel 11 and the drive board 113 electrically. The frame 13 includes a frame portion 13a, a sidewall 13b, and a housing portion 13c. The frame portion 13a has a frame-like shape that is opposite a peripheral area of the front side of the display panel 11. The sidewall 13b extends from the frame portion 13a toward a rear side of the display panel 11 and surrounds the display panel 11. The housing portion 13c is located inside the sidewall 13b and includes the groove 13c1 that opens to the frame portion 13a. The housing portion 13c holds the drive board 113 fitted in the groove 13c1.
    Type: Application
    Filed: January 30, 2013
    Publication date: December 25, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Tsuyoshi Ozeki, Motomitsu Itoh
  • Publication number: 20140347567
    Abstract: A panel guide has a first wall portion standing face to face with a frame, and by the first wall portion having its top in contact with the frame, the panel guide is supported by the frame and forms a space between the panel guide and the frame.
    Type: Application
    Filed: September 27, 2012
    Publication date: November 27, 2014
    Inventors: Kenichiro Ito, Hideto Takeuchi, Yasufumi Gouma
  • Patent number: 8890884
    Abstract: Provided is an image processing device. A first color space converting unit converts image data in an RGB colorimetric system, which has a color gamut wider than a color gamut of a liquid crystal panel into image data in an XYZ colorimetric system. A three-dimensional nonlinear color gamut converting unit performs conversion on tristimulus values of the XYZ signal. At this time, the image data is classified into four colors and converted respectively such that the first color is displayed in a color accurate to the inputted data, the second color is displayed such that saturation of the second color is increased, the third color is displayed using a color gamut of a predetermined range out of the color gamut of the liquid crystal panel, and the fourth color is displayed in a color corresponding to a boundary of the color gamut of the liquid crystal panel.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: November 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Xiaomang Zhang
  • Patent number: 8879006
    Abstract: There is provided with a color mixing section for mixing yellow to red or green, when red or green is displayed by a liquid crystal television including a liquid crystal panel that has a color filter for four primary colors for red, green, blue and yellow, a backlight that emits light to the liquid crystal panel, and a television signal processing section that converts an inputted color video image signal into signals representing red, green, blue and yellow regarding a color video image.
    Type: Grant
    Filed: March 12, 2012
    Date of Patent: November 4, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hironori Shimoda, Mihoko Watanabe
  • Patent number: 8880360
    Abstract: A combination mirror and media display device assembly is provided. The combination mirror and media display device includes a mirror platform having a media display device viewing area and a media display device coupled to the mirror platform. The media display device is positioned to display images through the media display device viewing area.
    Type: Grant
    Filed: December 28, 2011
    Date of Patent: November 4, 2014
    Assignee: Electric Mirror, LLC
    Inventors: James V. Mischel, Jr., James V. Mischel, Sr.
  • Publication number: 20140313425
    Abstract: A display system, having an emissive body, varying light emitted from the surface so that different temporally adjacent time periods see the emissive body outputting different primary colors. A liquid crystal display can then modulate the different primary colors that have been output at different times. In one embodiment, the different times modulate red green and blue colors. In another embodiment, the different times modulate red green blue and white colors. The emissive body can be a FIPEL type device. Light can be both color varied and also color temperature controlled. The light color is changed by changing a frequency used to drive the body.
    Type: Application
    Filed: April 19, 2013
    Publication date: October 23, 2014
    Applicant: Vizio Inc
    Inventor: Matthew McRae
  • Publication number: 20140240612
    Abstract: A liquid crystal display device (a display device) 10 includes a liquid crystal panel (a display panel) 11 displaying an image, a backlight unit (a lighting unit) 12 irradiating light to the liquid crystal panel 11, a plurality of LEDs (light sources) 17 that are a light emission source of the backlight unit 12, and a LED board 18 included in the backlight unit 12 and on which the LEDs 17 are mounted. The LEDs 17 are classified into at least three color regions 50 that are arranged in adjacent to each other in a CIE 1931 chromaticity diagram based on chromaticity of emission light. The LEDs are arranged on the LED board 18 such that at least two LEDs 17 in at least two color regions 50 that are positioned symmetrically with respect to a center of at least three color regions 50 in the CIE 1931 chromaticity diagram are arranged in adjacent to each other.
    Type: Application
    Filed: October 24, 2012
    Publication date: August 28, 2014
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Akira Gotou, Masashi Yokota
  • Patent number: 8736630
    Abstract: Provided is an image processing device which enables image display that takes full advantage of a color reproduction performance of a panel without providing a viewer with a feeling of strangeness. In at least one embodiment, an image processing device includes: a first color space converter configured to convert an externally transmitted RGB signal into an XYZ signal; a three-dimensional matching processor configured to perform conversion to tristimulus values of the XYZ signal to generate an XYZ signal; and a second color space converter configured to convert the XYZ signal to an RGB signal for a liquid crystal panel.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: May 27, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Xiaomang Zhang
  • Patent number: 8698834
    Abstract: A method of displaying an image that includes, in a display having a pixel comprising red, green, blue, and white sub-pixels, receiving data for an image, the image data comprising a first red value corresponding to a brightness of the red sub-pixel, a first green value corresponding to a brightness of the green sub-pixel, a first blue value corresponding to a brightness of the blue sub-pixel, and a first white value corresponding to a brightness of the white sub-pixel. A maximum value is determined from among the first red value, the first green value, and the first blue value, and brightnesses are set corresponding to the values other than the maximum value at quantities generally inversely proportional to the maximum value.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: April 15, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Candice Hellen Brown Elliott
  • Patent number: 8654116
    Abstract: A signal conversion circuit is disclosed which is suitably used in a multiprimary liquid crystal display device, and a multiprimary liquid crystal display device having such a signal conversion circuit. A signal conversion circuit according to one embodiment of the present invention is for use in a multiprimary liquid crystal display device, and converts an input video signal to a multiprimary signal corresponding to four or more primary colors. When generating a multiprimary signal for displaying dark skin, the signal conversion circuit according to an embodiment of the present invention applies a conversion to the video signal so that a color difference ?u?v?=((u??u60?)2+(v??v60?)2) is 0.03 or less, the color difference ?u?v? being defined by CIE1976 chromaticity coordinates (u?, v?) representing a chromaticity when the pixel is viewed from the frontal direction and CIE1976 chromaticity coordinates (u60?, v60?) representing a chromaticity when the pixel is viewed from a 60° oblique direction.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: February 18, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazunari Tomizawa, Tomohiko Mori, Shun Ueki, Takao Muroi
  • Patent number: 8633951
    Abstract: A display drive circuit of the invention has: an initial-color-gamut-apex-coordinate-storing unit capable of storing initial color gamut apex coordinates; a user-target-color-gamut-apex-coordinate-storing unit capable of storing user target color gamut apex coordinates; a saturation-expansion-coefficient-deciding unit for deciding expansion coefficients of saturation data based on the initial and user target color gamut apex coordinates; and an expansion unit for expanding saturations of display data based on the saturation expansion coefficients. The expansion coefficients of saturation data are decided based on the initial and user target color gamut apex coordinates, and saturations of display data are expanded according to the expansion coefficients. Thus, the degree of expanding the saturations can be controlled for each color gamut or each of R, G and B color properties of an LC display panel.
    Type: Grant
    Filed: November 26, 2012
    Date of Patent: January 21, 2014
    Assignee: Renesas Electronics Corporation
    Inventors: Yoshiki Kurokawa, Yasuyuki Kudo, Hiroyuki Nitta, Kazuki Homma, Junya Takeda
  • Patent number: 8587728
    Abstract: In a microdisplay TV with dynamic iris control, interpolation is used to undertake 3D gamma adjustment of the display for intermediate brightness levels.
    Type: Grant
    Filed: September 14, 2011
    Date of Patent: November 19, 2013
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventor: Guillermo Castano De La Serna
  • Patent number: 8531614
    Abstract: Disclosed is a display device in which high resolution representation is made by generating and displaying display data for each sub-pixel, and in which reduction in image quality is improved. The display device is provided with a display panel in which one pixel is constructed from sub-pixels of at least 4 colors. The display device generates the display data for each sub-pixel in accordance with an input image signal, and displays the display data on the display panel. Within the sub-pixels, high brightness sub-pixels which are the two sub-pixels having the highest brightness are arranged alternately with the other sub-pixels. Also, the area of each high brightness sub-pixel is smaller than that of the other sub-pixels. In a preferred example, the areas of the two sub-pixels having the highest brightness and the areas of the other two sub-pixels have area ratios in the following order: 1.0:1.0:1.6:1.6.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: September 10, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshiyuki Fujine, Tomoharu Noutoshi
  • Publication number: 20130010213
    Abstract: A signal conversion circuit is disclosed which is suitably used in a multiprimary liquid crystal display device, and a multiprimary liquid crystal display device having such a signal conversion circuit. A signal conversion circuit according to one embodiment of the present invention is for use in a multiprimary liquid crystal display device, and converts an input video signal to a multiprimary signal corresponding to four or more primary colors. When generating a multiprimary signal for displaying dark skin, the signal conversion circuit according to an embodiment of the present invention applies a conversion to the video signal so that a color difference ?u?v?=((u??u60?)2+(v??v60?)2) is 0.03 or less, the color difference ?u?v? being defined by CIE1976 chromaticity coordinates (u?, v?) representing a chromaticity when the pixel is viewed from the frontal direction and CIE1976 chromaticity coordinates (u60?, v60?) representing a chromaticity when the pixel is viewed from a 60° oblique direction.
    Type: Application
    Filed: September 12, 2012
    Publication date: January 10, 2013
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Kazunari Tomizawa, Tomohiko Mori, Shun Ueki, Takao Muroi
  • Patent number: 8345072
    Abstract: A display drive circuit of the invention has: an initial-color-gamut-apex-coordinate-storing unit capable of storing initial color gamut apex coordinates; a user-target-color-gamut-apex-coordinate-storing unit capable of storing user target color gamut apex coordinates; a saturation-expansion-coefficient-deciding unit for deciding expansion coefficients of saturation data based on the initial and user target color gamut apex coordinates; and an expansion unit for expanding saturations of display data based on the saturation expansion coefficients. The expansion coefficients of saturation data are decided based on the initial and user target color gamut apex coordinates, and saturations of display data are expanded according to the expansion coefficients. Thus, the degree of expanding the saturations can be controlled for each color gamut or each of R, G and B color properties of an LC display panel.
    Type: Grant
    Filed: March 19, 2012
    Date of Patent: January 1, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Yoshiki Kurokawa, Yasuyuki Kudo, Hiroyuki Nitta, Kazuki Homma, Junya Takeda
  • Publication number: 20120307163
    Abstract: Disclosed is a display device in which high resolution representation is made by generating and displaying display data for each sub-pixel, and in which reduction in image quality is improved. The display device is provided with a display panel in which one pixel is constructed from sub-pixels of at least 4 colors. The display device generates the display data for each sub-pixel in accordance with an input image signal, and displays the display data on the display panel. Within the sub-pixels, high brightness sub-pixels which are the two sub-pixels having the highest brightness are arranged alternately with the other sub-pixels. Also, the area of each high brightness sub-pixel is smaller than that of the other sub-pixels. In a preferred example, the areas of the two sub-pixels having the highest brightness and the areas of the other two sub-pixels have area ratios in the following order: 1.0:1.0:1.6:1.6.
    Type: Application
    Filed: March 10, 2011
    Publication date: December 6, 2012
    Applicant: Sharp Kabushiki Kaisha
    Inventors: Toshiyuki Fujine, Tomoharu Noutoshi
  • Patent number: 8295627
    Abstract: The present invention provides a circuit for controlling a color sequential liquid crystal display (LCD) and a method for controlling the same. The control circuit comprises a light-source driving circuit, a data driving circuit, and a scan driving circuit. The light-source driving circuit produces a driving signal for controlling the color sequential LCD to produce backlight with different colors. The data driving circuit produces a data signal and includes a plurality of data pulses. The scan driving signal produces a scan signal and includes a plurality of scan pulses corresponding to the plurality of data pulses, respectively. By controlling the pluralities of data pulses and scan pulses and the backlight, the color sequential LCD will display an image. The voltage levels of the pluralities of data pulses and scan pulses change according to different images. Thereby, power consumed by the control circuit can be reduced. In addition, color-mixing problems will be reduced according to the present invention.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: October 23, 2012
    Assignee: Sitronix Technology Corp.
    Inventors: Chih-Yu Lin, Chao-Chu Chang
  • Patent number: 8154560
    Abstract: A display drive circuit of the invention has: an initial-color-gamut-apex-coordinate-storing unit capable of storing initial color gamut apex coordinates; a user-target-color-gamut-apex-coordinate-storing unit capable of storing user target color gamut apex coordinates; a saturation-expansion-coefficient-deciding unit for deciding expansion coefficients of saturation data based on the initial and user target color gamut apex coordinates; and an expansion unit for expanding saturations of display data based on the saturation expansion coefficients. The expansion coefficients of saturation data are decided based on the initial and user target color gamut apex coordinates, and saturations of display data are expanded according to the expansion coefficients. Thus, the degree of expanding the saturations can be controlled for each color gamut or each of R, G and B color properties of an LC display panel.
    Type: Grant
    Filed: May 19, 2009
    Date of Patent: April 10, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Yoshiki Kurokawa, Yasuyuki Kudo, Hiroyuki Nitta, Kazuki Homma, Junya Takeda
  • Patent number: 8098336
    Abstract: In a microdisplay TV with dynamic iris control, interpolation is used to undertake 3D gamma adjustment of the display for intermediate brightness levels.
    Type: Grant
    Filed: March 15, 2007
    Date of Patent: January 17, 2012
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventor: Guillermo Castano De La Serna
  • Patent number: 8099247
    Abstract: A combination mirror and media display device assembly is provided. The combination mirror and media display device includes a mirror platform having a media display device viewing area and a media display device coupled to the mirror platform. The media display device is positioned to display images through the media display device viewing area.
    Type: Grant
    Filed: November 24, 2006
    Date of Patent: January 17, 2012
    Assignee: Electric Mirror, LLC
    Inventors: James V. Mischel, Jr., James V. Mischel, Sr.
  • Patent number: 8094166
    Abstract: A method for correcting color characteristics of a flat panel display comprises the steps of using a signal generating device to generate an input signal to the display and a color measurement instrument to measure color displayed by the display to obtain an output value; obtaining corrected color characteristic values necessary for the display to display a target output value Txyz through the relation of an inverse function RGB=f?1(XYZ) between the input signal RGB and output value XYZ, and storing the corrected color characteristic values and an identification code of the display into a storage medium. The corrected color characteristic values are downloaded to a hard disk of a computer from the storage medium according to the identification code; and the computer uses a driver of the display to activate the flat panel display to display a corrected color according to the corrected color characteristic values.
    Type: Grant
    Filed: July 31, 2007
    Date of Patent: January 10, 2012
    Assignee: Colorart Technology Inc.
    Inventors: Ming-Ching James Shyu, Wen-Yi Chung
  • Publication number: 20110298996
    Abstract: Display bright in contrast can be obtained without discrination and flicker in the display device of the direct vision type whose pixel pitches are short to 20 ?m or less. A liquid crystal panel is driven through the frame inverse driving method, and the vertical frame frequency is set to 120 Hz or more. Also, each of the pixels is arranged to correspond to one of R, G and B of color filters disposed on a TFT substrate side.
    Type: Application
    Filed: August 22, 2011
    Publication date: December 8, 2011
    Inventors: Shunpei Yamazaki, Jun Koyama, Hirokazu Yamagata
  • Patent number: 8068178
    Abstract: A processor, such as a TV processor, determines which one of at least two audio-video components is sending signals to a TV for display. Based on the determining act, the processor establishes a color of a bezel of the TV.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: November 29, 2011
    Assignees: Sony Corporation, Sony Electronics Inc.
    Inventors: Robert Hardacker, Rafael Calderon, Steven Richman
  • Patent number: 7956840
    Abstract: An electro-optical device includes: a plurality of data lines blocked for every “m” (m is an integer of 2 or greater) columns; a sampling signal output circuit which outputs sampling signals; and a sampling circuit which has sampling switches provided in the data lines, respectively, and which turns on the sampling switches to sample data signals supplied to “n” (n is an integer of 2 or greater) image signal lines, to the data lines. The sampling circuit groups the blocks for every “n” blocks, makes individual blocks in the same group correspond to different image signal lines, respectively, to connect the sampling switches in the individual blocks to corresponding image signal lines, supplies one sampling signal to two adjacent groups, and when any one sampling signal is supplied, simultaneously turns on sampling switches in the same columns in “n” blocks belonging to one group of two groups.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: June 7, 2011
    Assignee: Seiko Epson Corporation
    Inventor: Tatsuya Ishii
  • Publication number: 20110096249
    Abstract: Consistent with an example embodiment, there is a method for a method for processing video data, the video data being adapted for being displayed on a locally dimmable liquid crystal display. The method comprises color enhancing the video data. The method further comprises determining dimming factors corresponding to primary color components of the video data corresponding to a pixel of the locally dimmable liquid crystal display based on the color enhanced video data. The method furthermore comprises determining a color correction of the color enhanced video data corresponding to the pixel of the locally dimmable liquid crystal display based on the dimming factors. The method also comprises processing the video data based on the determined color correction.
    Type: Application
    Filed: September 24, 2010
    Publication date: April 28, 2011
    Applicant: NXP B.V.
    Inventors: Oleg BELIK, Yingrong XIE
  • Publication number: 20110080520
    Abstract: There is provided a signal conversion circuit which is suitably used in a multiprimary liquid crystal display device (especially a multiprimary liquid crystal display device which performs display in a vertical alignment mode), and a multiprimary liquid crystal display device having such a signal conversion circuit. A signal conversion circuit according to the present invention is for use in a multiprimary liquid crystal display device which performs display in a vertical alignment mode, and converts an input video signal to a multiprimary signal corresponding to four or more primary colors. When generating a multiprimary signal for displaying dark skin, the signal conversion circuit according to the present invention applies a conversion to the video signal so that a color difference ?u?v?=((u??u60?)2+(v??v60?)2) is 0.
    Type: Application
    Filed: May 21, 2009
    Publication date: April 7, 2011
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Kazunari Tomizawa, Kohzoh Nakamura, Shun Ueki, Tomohiko Mori, Yuichi Yoshida
  • Patent number: 7889235
    Abstract: A PC 40 outputs a picture signal for a white color to a TV 100, and generates chromaticity information by measuring luminance values of respective RGB color components from a picture displayed on the TV 100, thereby determining whether the chromaticity information undergoes a change by varying an output of any of the RGB color components by a predetermined amount. Subsequently, when the chromaticity information has not undergone a change, the contrast of the TV 100 is lowered by a predetermined amount, and re-acquisition re-determination of chromaticity information is executed. On the other hand, when the chromaticity information has undergone a change, determination is made on whether the chromaticity information substantially matches chromaticity information representing white, and in the affirmative case, a white balance adjustment value is stored in an EEPROM 112 while in the negative case, the re-acquisition/re-determination of chromaticity information is repeated.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: February 15, 2011
    Assignee: Funai Electric Co., Ltd.
    Inventor: Takayoshi Urisu
  • Patent number: 7800714
    Abstract: A liquid crystal display includes a first liquid crystal panel and a second liquid crystal panel stacked on each other; and polarizers provided to the panels, together with a polarizer of an adjacent panel, arranged to define a crossed Nicols. When the first liquid crystal panel produces a display from a first display signal, the second liquid crystal panel produces a display from a second display signal obtained from the first display signal. Between a framework and drivers provided to the first liquid crystal panel and the second liquid crystal panel, heat conducting members are arranged to transfer heat from the drivers to the framework so as to improve luminance when two liquid crystal panels are stacked and achieve high display quality.
    Type: Grant
    Filed: June 7, 2006
    Date of Patent: September 21, 2010
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Yoshiki Takata
  • Publication number: 20100201723
    Abstract: The apparatus, methods, system and devices of the present invention provides transflective LCD system structure wherein each pixel is composed of at least three reflective sub-pixels and at least one transmissive sub-pixel. The reflective sub-pixels have a color filter layer for displaying color reflective images and the transmissive sub-pixel it is driven by color sequential imaging method for displaying a color transmissive image. The configuration of the sub-pixels and the location of the sub-pixel electronics increases the aperture ratio of both transmissive sub-pixel and reflective sub-pixel to improve the image brightness and lower the overall power consumption of the device.
    Type: Application
    Filed: April 23, 2010
    Publication date: August 12, 2010
    Inventors: Ju-Hyun Lee, Xinyu Zhu, Shin-Tson Wu
  • Publication number: 20100177248
    Abstract: A system provides an image displaying technique that provides stable high contrast even in an area having high brightness. Based on information about an average brightness level of a digital luminance signal, black-correction processing which decreases a brightness level by offsetting the brightness level to the minus side, and increase processing which increases a contrast gain within a dynamic range, are performed for an analog luminance signal or a digital luminance signal, enabling improvement in contrast even where brightness is intense.
    Type: Application
    Filed: January 28, 2009
    Publication date: July 15, 2010
    Applicant: Hitachi, Ltd.
    Inventors: Hiroshi AOKI, Ryo HASEGAWA
  • Publication number: 20100118006
    Abstract: To provide a liquid crystal display device and the like, which can improve the contrast ratio. The liquid crystal display device includes a liquid crystal display unit and an image processing unit which supplies video signals inputted from a video source section to the liquid crystal display unit. The liquid crystal display unit is formed by stacking a single first liquid crystal display element and a single or a plurality of second liquid crystal display element(s). For each pixel unit of the second liquid crystal display element, the image processing unit generates, by having each dot of the video signal as a reference point, a drive signal for displaying an image according to processing for extracting a maximum value of relative gradations or relative transmittances among a region of a pixel unit (dot) group including the reference pixel units and the pixel units (dots) neighboring to the reference pixel units.
    Type: Application
    Filed: November 4, 2009
    Publication date: May 13, 2010
    Applicant: NEC LCD TECHNOLOGIES, LTD.
    Inventor: Hiroaki KIMURA
  • Patent number: 7710630
    Abstract: Embodiments of the present invention include a method, apparatus and/or system of producing a color image using four or more primary colors. The apparatus, according to some demonstrative embodiments of the invention, may include an optical arrangement to selectively split polychromatic light into at least four primary-color light beams, and to direct the at least four primary-color light beams towards at least four reflective spatial light modulators, respectively. Other embodiments are described and claimed.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: May 4, 2010
    Assignee: Genoa Color Technologies Ltd.
    Inventor: Shmuel Roth
  • Publication number: 20100060822
    Abstract: A display apparatus (100?) includes a substrate (115a) and a light switch (210). A light source (310?) is provided at the side of the substrate (115a) and emits light of which wavelength is in the range of ultraviolet or cyan. A polarizing sheet (116), as well as a photoluminescence film (110?), is provided in front of the light source (310?). Under the excitation of the light source (310?), the photoluminescence film (110?) can emit red light, green light, blue light and/or intermediate color light among red, green and blue.
    Type: Application
    Filed: September 2, 2009
    Publication date: March 11, 2010
    Inventor: Runwen Sun
  • Publication number: 20100060806
    Abstract: In one embodiment of the present invention, a liquid crystal display device groups video signal lines SL1 to SLn every 12 video signal lines in order of arrangement and drives video signal lines in each group in a time division manner during a horizontal scanning period. The order of driving video signal lines in each group varies between an even frame and an odd frame, and for each line, in one of the frames, even-numbered video signal lines are driven earlier and in the other one of the frames, odd-numbered video signal lines are driven earlier. The first and last video signal lines to be driven correspond to blue.
    Type: Application
    Filed: March 19, 2008
    Publication date: March 11, 2010
    Inventors: Keiichi Ina, Keisuke Yoshida
  • Publication number: 20090153780
    Abstract: A liquid crystal display includes a first liquid crystal panel and a second liquid crystal panel stacked on each other; and polarizers provided to the panels, together with a polarizer of an adjacent panel, arranged to define a crossed Nicols. When the first liquid crystal panel produces a display from a first display signal, the second liquid crystal panel produces a display from a second display signal obtained from the first display signal. Between a framework and drivers provided to the first liquid crystal panel and the second liquid crystal panel, heat conducting members are arranged to transfer heat from the drivers to the framework so as to improve luminance when two liquid crystal panels are stacked and achieve high display quality.
    Type: Application
    Filed: June 7, 2006
    Publication date: June 18, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Yoshiki Takata
  • Publication number: 20090109203
    Abstract: A data signal line drive circuit is provided with first sampling portions, and second sampling portions operated at a lower speed. By the action of selection circuits, the first sampling portions are operated during a normal display mode, and the second sampling portions are operated during a partial display mode. To ensure a correct sampling operation, one line time and a sampling interval are rendered longer during a display period of the partial display mode than during the normal display mode. During the normal display mode, both the first sampling portions and the second sampling portions may be operated. Thus, power consumption of a liquid crystal display device during the partial display is reduced.
    Type: Application
    Filed: September 25, 2006
    Publication date: April 30, 2009
    Inventors: Hajime Washio, Michael James Brownlow
  • Patent number: 7518610
    Abstract: A display apparatus is designed to make a display corresponding to one pixel through the use of a plurality of rectangular display elements. The apparatus comprises a multi-gradation character generating unit for generating information on a multi-gradation character image obtained by gradating a character edge portion and an element display control unit for controlling a display state in a display unit on the basis of information on this multi-gradation character image so that the multi-gradation character image is displayed in a state where each of the rectangular display elements constituting the display unit is associated with one or more pixels, thus reducing the quantization error so that character display with high visibility is achievable in the case of display of highly fine characters.
    Type: Grant
    Filed: May 25, 2006
    Date of Patent: April 14, 2009
    Assignee: Fujitsu Limited
    Inventor: Satoshi Iwata
  • Patent number: 7474314
    Abstract: A method for selecting paints is disclosed. This method includes the steps of selecting true paint colors, displaying device-dependent colors corresponding to the true paint colors in a simulated full size room and interacting with the buyers to change the displayed colors and select the desired colors. The method also includes the step of dispensing paints corresponding to the selected colors. The displayed colors are generated by multiple color and/or white LEDs to provide a wider gamut of displayable colors and more color saturation and chromatic. A full-size apparatus for displaying paint colors using device-dependent colors is also disclosed.
    Type: Grant
    Filed: January 10, 2005
    Date of Patent: January 6, 2009
    Assignee: Columbia Insurance Company
    Inventors: Carl Minchew, Patrick Tak Fu Chong
  • Publication number: 20080191995
    Abstract: An image display device includes an image signal source unit to provide primary image data and selected compensation data to compensate the primary image data, and a display unit to display images using compensated image data obtained by compensating the primary image data with the selected compensation data. The selected compensation data is selected from a set of compensation data in response to variation of ambient temperature of the display device. The image display device also includes a temperature sensor to detect the variation of the ambient temperature of the display device and provide temperature data corresponding to the variation of the ambient temperature. The image display device also includes a frequency sensor to detect frequency variation in a vertical synchronizing signal of the display unit, wherein the selected compensation data is selected from a set of compensation data in response to the variation of the ambient temperature and the frequency variation.
    Type: Application
    Filed: April 17, 2008
    Publication date: August 14, 2008
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Man-Bok CHEON, Hyun-Sang CHO
  • Publication number: 20080151130
    Abstract: A wireless detachable rendering device (1) having a display (10) and a wired network connection (14) to a data server (16) is equipped with a local storage means (11) such as a HDD. When device (1) is docked in a stand, data to be rendered on display is in a best-effort like fashion loaded via the wired connection into the storage means (11). Thus data is available for undocked use of device (1). Power consumption is reduced as use of the wireless connection is avoided.
    Type: Application
    Filed: February 3, 2005
    Publication date: June 26, 2008
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Jozef Pieter Van Gassel, Hendrikus Bernardus Van Den Brink