Reflector Patents (Class 349/113)
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Patent number: 8094265Abstract: The present invention relates to a liquid crystal display, comprising a lower alignment film formed on a lower substrate; an upper alignment film formed on an upper substrate; a liquid crystal layer sandwiched between the lower and upper substrates; a phase compensation film adhered on the outer surface of the upper substrate; and a polarizer adhered on the phase compensation film wherein the lower alignment film has an alignment angle of ?10 to 20° with respect to a horizontal line, the upper alignment film has an alignment angle of 40 to 55° with respect to a horizontal line, the liquid crystal layer has a phase delay value (d?n) of 0.24-0.27 ?m, the phase compensation film has a phase compensation function of ?/4 and also has an optical axis making 140-146° with a horizontal line, and the polarizer has a absorption axis making 120 to 122.5° with a horizontal line.Type: GrantFiled: August 21, 2009Date of Patent: January 10, 2012Assignee: Hydis Technologies Co., Ltd.Inventors: Dong Hae Suh, Young Il Park, Hee Cheol Kim, Hwan Su Shim, Won Geon Lee
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Patent number: 8094266Abstract: An LCD apparatus includes an LCD panel having a color filter for a plurality of color components and having a plurality of pixels each associated with one of the color components of the color filter, and a side lighting-type backlight unit disposed under the LCD panel. The backlight unit includes a light guide and a light source disposed at least at one lateral end of the light guide, and further includes a reflecting layer on a side opposite to a side facing the LCD panel to reflect light coming towards the reflecting layer from the light guide. The color filter is configured to compensate a change in color spectrum in the ambient light that has passed through the LCD panel and the light guide and that has been reflected by the reflecting layer back to the light guide and the LCD panel so that the color temperature of white display of the LCD panel by the ambient light remains substantially the same as the color temperature of the original ambient light.Type: GrantFiled: February 1, 2011Date of Patent: January 10, 2012Assignee: Casio Computer Co., Ltd.Inventors: Toshiharu Nishino, Norihiro Arai, Kunpei Kobayashi
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Patent number: 8094285Abstract: It is to suppress the interference of the reflected light easily and securely even in a highly fine liquid crystal display device. The reflection plate comprises recessed or protruded parts and a reflection film formed over the recessed or protruded parts. A unit shape of the recessed or protruded parts is a polygon, an arbitrary point other than a centroid of the polygon that constitutes the recessed or protrude part is placed at a position that meets with an orderly-mannered lattice point as an origin, and each of the unit-shape polygons is arranged at a position that is rotated randomly with respect to the origin.Type: GrantFiled: June 9, 2010Date of Patent: January 10, 2012Assignee: NEC LCD Technologies, Ltd.Inventors: Akio Kobayashi, Yasuki Kudo, Kenichirou Naka
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Patent number: 8089587Abstract: A display device has a display panel having a first substrate for displaying an image that is observed from a front surface of the first substrate. A translucent substrate covers the display panel from the front surface of the first substrate. The translucent substrate has a rear surface and a first light shielding portion on a periphery of the rear surface. A photo-curable translucent adhesive integrally bonds a front surface of the first substrate and the rear surface of the translucent substrate to each other. A first light reflecting portion is formed on the first light shielding portion of the translucent substrate. A second light reflecting portion is formed on a surface of the first substrate so as to oppose the first light reflecting portion through the photo-curable translucent adhesive.Type: GrantFiled: February 11, 2009Date of Patent: January 3, 2012Assignee: Seiko Instruments Inc.Inventor: Haruhisa Iida
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Publication number: 20110317112Abstract: An ultraviolet-absorbing layer is provided between an insulating substrate and a transparent electrode, the ultraviolet-absorbing layer having a transmittance ratio (T (365 nm)/T (315 nm)) of not less than 6.3 where (T (365 nm)) is a transmittance at a wavelength of 365 nm and (T (315 nm)) is a transmittance at a wavelength of 315 nm.Type: ApplicationFiled: February 15, 2010Publication date: December 29, 2011Inventors: Yasushi Asaoka, Kiyoshi Minoura, Eiji Satoh, Kazuhiro Deguchi, Sayuri Fujiwara, Kenji Miyamoto
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Publication number: 20110317113Abstract: The present invention provides a liquid crystal display device capable of suppressing alignment disorder of liquid crystal and having satisfactory VR characteristics. According to the present invention, a liquid crystal display device includes a pair of substrates and a liquid crystal layer interposed between the pair of substrates, the liquid crystal display device having a reflective region and a transmissive region. One of the pair of substrates includes a longitudinal projecting portion and a liquid-crystal-layer-thickness adjusting portion for setting a liquid crystal layer thickness in the reflective region to be smaller than a liquid crystal layer thickness in the transmissive region. At least a part of the projecting portion is arranged without a gap along at least a part of a step portion of the liquid-crystal-layer-thickness adjusting portion.Type: ApplicationFiled: October 27, 2009Publication date: December 29, 2011Inventors: Katsuya Ogawa, Kazuyoshi Fujioka, Tomoo Furukawa, Masaaki Saitoh
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Publication number: 20110317111Abstract: A liquid crystal display device includes: a first substrate and a second substrate opposed to each other; and a liquid crystal layer placed between the first and second substrates. The device has a plurality of pixels each having a transmission region configured to transmit light coming from the first substrate side and a reflection region configured to reflect light coming from the second substrate side at the first substrate. A transparent layer is provided in the reflection region for rendering the liquid crystal layer thinner in the reflection region than in the transmission region. A groove is formed between the pixels on the surface of the first substrate facing the liquid crystal layer.Type: ApplicationFiled: July 6, 2009Publication date: December 29, 2011Inventor: Hironobu Tatsumi
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Patent number: 8085367Abstract: A liquid crystal display device includes: a liquid crystal panel; a backlight assembly for irradiating light onto the liquid crystal panel; and a reflection layer between the liquid crystal panel and the backlight assembly for increasing an amount of light incident onto the liquid crystal panel.Type: GrantFiled: June 9, 2005Date of Patent: December 27, 2011Assignee: LG Display Co., Ltd.Inventors: Sung-Ki Kim, Yong-Jin Cho, Hae-Yeol Kim
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Patent number: 8085371Abstract: A liquid crystal display having improved retardation plate is described. In the liquid crystal display, at least one of two panel plates has a polarizer placed on an outer side which is opposite to a liquid crystal layer and a quarter wavelength retardation plate between a substrate glass and the polarizer. The quarter wavelength retardation plate is composed of two retardation films including a half wavelength and a quarter wavelength retardation film. A slow axis of a half ? film which is adjacent to the polarizer makes an angle of ?1 with a transmissive axis of the polarizer and that of a quarter ? film which is adjacent to the substrate glass makes an angle of ?2 where ?2=2×?1±45 degree. The retardation films are single-axial films. The specific angle ?1 is one of degree values (15, 75, 105, and 165).Type: GrantFiled: March 12, 2010Date of Patent: December 27, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Yong-Kyu Jang
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Patent number: 8081277Abstract: A liquid crystal display panel includes a first base, a second base, and a sealing member. The first base has a display-area portion including a transparent substrate, a light shielding film formed on a surface of the transparent substrate and having a through hole, a light reflecting film formed on the light shielding film, a color filter formed at least in the through hole of the light shielding film, and a transparent electrode formed on the surface of the transparent substrate. The second base includes a transparent substrate, and a transparent electrode formed on the surface of the transparent substrate. The sealing member is a member for sealing liquid crystal between the first base and the second base.Type: GrantFiled: November 17, 2008Date of Patent: December 20, 2011Assignee: Kyocera CorporationInventors: Yoshio Miyazaki, Katsumi Tsuchida
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Patent number: 8072565Abstract: A liquid crystal display device is provided that includes: first and second substrate; a gate line of a double layer having a first transparent conductive layer and a second opaque conductive layer on the first substrate; a first insulation layer on the gate line; a data line crossing the gate line to define a pixel region, the pixel region having a transmissive region and a reflective region; a thin film transistor connected to the gate and data lines; a pixel electrode formed of the transparent conductive layer in the pixel region; an upper storage electrode forming a storage capacitor by overlapping the gate line with the gate insulating film there between; a transmission hole to exposing the pixel electrode by passing through a second insulation layer on the thin film transistor to the first insulation layer; a reflective electrode connecting the pixel electrode with a drain electrode and the upper storage electrode through an edge part of the transmission hole; a gate pad extending from the first conductType: GrantFiled: April 8, 2010Date of Patent: December 6, 2011Assignee: LG Display Co., Ltd.Inventors: Byung Chul Ahn, Jong Woo Park
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Patent number: 8072570Abstract: A liquid crystal display panel includes a plurality of scan lines, a plurality of data lines, a pixel array, a plurality of first common electrode lines and at least one second common electrode line. The first common electrode lines receive a common electrode signal through at least one first input node positioned at a first side of the pixel array. The second common electrode line receives the common electrode signal through at least one second input node positioned at a second side of the pixel array. In addition, at least one first common electrode line is electrically connected to the second common electrode lines in the pixel array.Type: GrantFiled: December 31, 2008Date of Patent: December 6, 2011Assignee: Chunghwa Picture Tubes, Ltd.Inventor: Hsi-Ming Chang
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Publication number: 20110292326Abstract: A reflective display device includes a retroreflective layer 10 with unit structures arranged two-dimensionally on a virtual plane, and conducts a display operation by using light reflected from the retroreflective layer. The device further includes: gate lines 35 arranged on a rear substrate 32; source lines 34 also arranged on the rear substrate 32 to cross the gate lines 35 as viewed from over a front substrate 30; a switching element 33 also arranged on the rear substrate 32 and activated in response to a signal supplied to its associated gate line 35; a pixel electrode 36 electrically connectible to its associated source line 34 via the switching element 33; and a counter electrode 38 arranged to face the pixel electrode 36. Each unit structure of the retroreflective layer 10 has a recess defined by three planes opposed perpendicularly to each other.Type: ApplicationFiled: July 24, 2008Publication date: December 1, 2011Inventors: Eiji Satoh, Kiyoshi Minoura, Yasushi Asaoka
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Publication number: 20110292327Abstract: A method for producing a light reflecting structure in a transflective or reflective liquid crystal display uses one or two masks for masking a photoresist layer in a back-side exposing process. The pattern on the masks is designed to produce rod-like structures or crevices and holes on exposed and developed photoresist layer. After the exposed photoresist is developed, a heat treatment process or a UV curing process is used to soften the photoresist layer so that the reshaped surface is more or less contiguous but uneven. A reflective coating is then deposited on the uneven surface. One or more intermediate layers can be made between the masks, between the lower mask and the substrate, and between the upper masks and the photoresist layers. The masks and the intermediate layers can be made in conjunction with the fabrication of the liquid crystal display panel.Type: ApplicationFiled: August 2, 2011Publication date: December 1, 2011Inventors: Hsiang-Lin Lin, Chun-Chieh Tsao
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Patent number: 8068189Abstract: A plurality of liquid crystal modulation electrodes is arranged in a matrix on a semiconductor substrate 28, a light transmitting substrate 47 with a transparent electrode 23, and a semiconductor substrate are laminated together with liquid crystal interposed therebetween, the semiconductor substrate is connected to a flexible printed board 25 electrically connecting to an external circuit, the transparent electrode is connected to the wiring of the flexible printed board not through the semiconductor substrate, and the wiring is connected to the semiconductor substrate, whereby the transparent electrode is electrically connected to the semiconductor substrate. The semiconductor substrate 28 is provided with an anti-electrostatic protection circuit and the transparent electrode is connected to the anti-electrostatic protection circuit through the wiring.Type: GrantFiled: May 21, 2007Date of Patent: November 29, 2011Assignee: Canon Kabushiki KaishaInventor: Takeshi Ichikawa
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Publication number: 20110285945Abstract: In the liquid crystal display device in which a guest-host liquid crystal layer is provided between a first substrate having a reflective film which is a pixel electrode layer (also referred to as a first electrode layer) and a second substrate having a common electrode layer (also referred to as a second electrode layer), the reflective film which is a pixel electrode layer is projected into the liquid crystal layer, and a micron-sized first unevenness and a nano-sized second unevenness on the first unevenness are provided.Type: ApplicationFiled: May 9, 2011Publication date: November 24, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Yamato AIHARA, Masami JINTYOU, Rai SATO, Toru ARAKAWA
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Publication number: 20110285684Abstract: Techniques are provided to drive a normally white or mixed mode LCD with low voltages and low power consumption. A sub-pixel in the LCD may comprise a reflective part and a transmissive part. The cell gap for a liquid crystal layer in the sub-pixel may provide at least a half-wave phase retardation. A driving voltage range with a maximum voltage at a low value may be used to drive the reflective part and the transmissive part of the sub-pixel to various levels of brightness.Type: ApplicationFiled: May 18, 2010Publication date: November 24, 2011Inventors: Ruibo Lu, Mary Lou Jepsen
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Publication number: 20110285946Abstract: A liquid crystal display device including a first substrate, a second substrate facing and spaced away from the first substrate, a liquid crystal layer sandwiched between the first and second substrates, a switching device formed on the first substrate, a first electrically insulating film randomly patterned on the first substrate, a second electrically insulating film covering the first electrically insulating film therewith, and having a wavy surface, and a reflection electrode formed on the second electrically insulating film, and electrically connected to an electrode of the switching device, wherein a light passing through the second substrate and the liquid crystal layer is reflected at the reflection electrode, and the second electrically insulating film extends outwardly from the first electrically insulating film by a certain length at an end of a display region in which images are to be displayed, such that a step formed by the first and second electrically insulating films in the vicinity of the enType: ApplicationFiled: August 8, 2011Publication date: November 24, 2011Applicant: NEC LCD TECHNOLOGIES, LTD.Inventors: Hironori KIKKAWA, Michiaki SAKAMOTO, Yuichi YAMAGUCHI, Hidenori IKENO, Fumihiko MATSUNO
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Patent number: 8064014Abstract: The light reflecting plate has a substrate made of metal plate, a binder layer made of organic resin or an inorganic material, which is formed on the substrate, a reflective layer formed of a plated layer of silver or silver alloy containing silver as a main component, which is formed on the binder layer, and a protective layer formed on the reflective layer.Type: GrantFiled: September 18, 2009Date of Patent: November 22, 2011Assignee: Toyo Kohan Co., Ltd.Inventors: Teruyaki Tatsumi, Youji Tamura, Keiji Yamane
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Patent number: 8064013Abstract: A liquid crystal display panel 10 of the present invention includes an array substrate 11 with a display region in which a pixel electrode is formed in each of the regions enclosed by a plurality of signal lines and scan lines deployed as matrices, a opposed substrate 12 with a common electrode 31, a sealing agent 35 sealing a peripheral portion of the array substrate 11 and the opposed substrate 12, a liquid crystal layer sealed between both substrates, a border region 34 including a reflector 37 and a transparent electrode 38 is formed on an interlayer 23 at a periphery of the display region of the array substrate 11, and at least a part of an outer peripheral side is lacking from the common electrode 31 at a position corresponding to the border region 34. Thanks to such structure, the border region improves the appearance at the periphery of the display region, and the phenomenon of night vision alongside the scan line wiring does not occur.Type: GrantFiled: June 14, 2007Date of Patent: November 22, 2011Assignee: Sony CorporationInventors: Tae Nakahara, Shinichiro Tanaka, Hideki Kaneko, Hironori Taniguchi, Masashi Ariga
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Patent number: 8059237Abstract: A display panel for a LCD device includes a substrate, a plurality of thin film transistors formed on the substrate, a passivation layer formed on the thin film transistors, a plurality of reflective patterns formed on the passivation layer, transparent electrodes formed on the reflective patterns, and reflective films formed on the transparent electrode. The reflective patterns and the reflective films are formed in a reflective area of the passivation layer. The reflective patterns are formed by position transition of two polymer films having different polarities. The display panel having the reflective patterns increase light reflectance and reduce cost for manufacturing an LCD.Type: GrantFiled: February 24, 2009Date of Patent: November 15, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Jong-Seong Kim
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Patent number: 8059236Abstract: A method for producing a light reflecting structure in a transflective or reflective liquid crystal display uses one or two masks for masking a photoresist layer in a back-side exposing process. The pattern on the masks is designed to produce rod-like structures or crevices and holes on exposed and developed photoresist layer. After the exposed photoresist is developed, a heat treatment process or a UV curing process is used to soften the photoresist layer so that the reshaped surface is more or less contiguous but uneven. A reflective coating is then deposited on the uneven surface. One or more intermediate layers can be made between the masks, between the lower mask and the substrate, and between the upper masks and the photoresist layers. The masks and the intermediate layers can be made in conjunction with the fabrication of the liquid crystal display panel.Type: GrantFiled: February 15, 2007Date of Patent: November 15, 2011Assignee: AU Optronics CorporationInventors: Hsiang-Lin Lin, Chun-Chieh Tsao
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Patent number: 8054421Abstract: The invention relates to a reflective display panel (9), comprising a plurality of pixels (10, 11a b), each having a modulative portion (15, 16a-b) which is controllable between light-modulation states, and a non-modulative portion (17, 18). The reflective display panel (9) comprises a redirection sheet (14) having a plurality of redirecting structures (19, 20) each being configured to redirect ambient light incident thereon towards an adjacent modulative portion (15, 16a-b). Through the invention, the portion of the light which would otherwise have hit the non-modulative portion of the pixel and would not have contributed constructively to the image forming of the display panel is instead directed towards the modulative portion of the pixel and can thereby contribute to the brightness as well as to the contrast of the reflective display panel.Type: GrantFiled: April 1, 2008Date of Patent: November 8, 2011Assignee: Adrea, LLCInventors: Sander Jurgen Roosendaal, Martinus Hermanus Wilhelmus Maria Van Delden
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Patent number: 8054424Abstract: A transflective liquid crystal display device includes first and second substrates facing each other, a gate line and a data line on the first substrate, the gate and data lines intersecting each other and defining a pixel region having a transmissive region and a reflective region, a thin film transistor at an intersection between the gate line and the data line, a pixel electrode in the pixel region connected to the thin film transistor, an organic insulating layer on the second substrate, the organic insulating layer including a through-hole in the transmissive region, a reflective electrode on the organic insulating layer in the reflective region, a black matrix on the second substrate, a color filter layer on the second substrate in the pixel region, and a liquid crystal layer between the first and second substrates.Type: GrantFiled: April 18, 2011Date of Patent: November 8, 2011Assignee: LG Display Co., Ltd.Inventor: Dong Yung Kim
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Patent number: 8054420Abstract: A liquid crystal display device includes an array substrate having reflective and transmissive regions in a pixel region, wherein the array substrate includes a reflective electrode corresponding to the reflective region and a pixel electrode on a first substrate. A color filter substrate defines the reflective region and the transmissive region in the pixel region. The color filter substrate includes a color filter with first and second portions that correspond to the respective transmissive and reflective regions on a second substrate. The thickness of the second portion is less than a thickness of the first portion. The combined thickness of the scatter and the thickness of the second portion is greater than the thickness of the first portion; and a liquid crystal layer between the array and color filter substrates.Type: GrantFiled: January 7, 2010Date of Patent: November 8, 2011Assignee: LG Display Co., Ltd.Inventors: Sung-Soo Chang, Woo-Hyun Kim, Jin-Ho Kim
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Patent number: 8049846Abstract: A reflection-type display device includes an optical modulation layer 34, a pair of substrates 30 and 32 between which the optical modulation layer 34 is retained, an electrode structure 52, 44 for causing pixel-by-pixel changes in the optical characteristics of the optical modulation layer 34. One of the pair of substrates 32 has a corner cube array composed of a plurality of corner cubes 36. The corner cube array 36 has a plurality of projections 46 defining an interval between the pair of substrates 30 and 32, the plurality of projections 46 being disposed in peak portions.Type: GrantFiled: March 3, 2006Date of Patent: November 1, 2011Assignee: Sharp Kabushiki KaishaInventors: Sayuri Fujiwara, Kiyoshi Minoura, Makoto Kanbe, Yutaka Sawayama
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Patent number: 8049841Abstract: An image is displayed by modulating TM-polarized light between the polarizer 2 and the wire grid polarizer 18 through the variation of the optical characteristic of the liquid crystal layer 12 interposed between the transparent plate 4 and the transparent plate 26. Degradation of contrast in the bright ambience is avoided by providing an absorption layer for absorbing TE-polarized light on that surface of the wire grid polarizer 18 which faces the liquid crystal layer 12.Type: GrantFiled: October 19, 2007Date of Patent: November 1, 2011Assignee: Hitachi Displays, Ltd.Inventors: Tatsuya Sugita, Shoichi Hirota
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Patent number: 8045105Abstract: A thin film transistor substrate according to one or more embodiments of the present invention includes a gate line formed on a substrate, a data line that is insulated from and intersects the gate line, a thin film transistor connected to the gate line and the data line, a barrier rub formed on the thin film transistor and partitioning a plurality of first openings, a reflecting electrode formed in each of the first openings, and a pixel electrode formed on the reflecting electrode and that is electrically connected to the thin film transistor.Type: GrantFiled: February 11, 2009Date of Patent: October 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-Hwan Cho, Bo-Sung Kim, Jung-Han Shin, Ju-Han Bae
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Publication number: 20110255039Abstract: A liquid crystal display device includes a first substrate having a plurality of pixels defined thereon, each of which is provided with a reflection layer, a second substrate disposed opposite the first substrate, and a display surface which displays images by the pixels, where the display surface is curved in one direction, and each of the reflection layers is formed so that a reflectance of light reflected from each of the reflection layers in a direction normal to the display surface is higher in both edge portions in a curvature direction than in a middle portion in the curvature direction on the display surface.Type: ApplicationFiled: August 5, 2009Publication date: October 20, 2011Applicant: SHARP KABUSHIKI KAISHAInventor: Hiromi Enomoto
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Patent number: 8040474Abstract: A mold for a display device, comprising a supporting frame; at least one pattern forming part provided on a surface of the supporting frame; and a protrusion projecting from the supporting frame and disposed along the circumference of the pattern forming part, an inside wall of the protrusion toward the pattern forming part standing upright from the surface of the supporting frame.Type: GrantFiled: February 7, 2007Date of Patent: October 18, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Nam-seok Roh, Mun-pyo Hong, Jae-hyuk Chang, Jung-mok Bae
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Patent number: 8035781Abstract: With an object of providing a transflective type liquid crystal display device having a transparent electrode of an uneven structure formed without particularly increasing steps, in fabricating the transflective type liquid crystal display device, a amorphous transparent conductive film is formed on a substrate, a crystalline portion is formed in the amorphous transparent conductive film to thereby form the transparent conductive film including the crystalline portion, a amorphous portion is removed at a film surface of the transparent conductive film including the crystalline portion to thereby form the transparent conductive film having an uneven shape formed by a remaining crystalline portion at a film surface and a reflecting electrode having the uneven shape is formed by forming a reflective conductive film above the transparent electrode having the uneven shape.Type: GrantFiled: February 9, 2007Date of Patent: October 11, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shingo Eguchi, Yuriko Tsuji
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Patent number: 8035102Abstract: An improved display substrate is provided to reduce surface defects on insulating layers of organic thin film transistors. Related methods of manufacture are also provided. In one example, a display substrate includes a base, a plurality of data lines, a plurality of gate lines, a pixel defined by the data lines and the gate lines, an organic thin film transistor, and a pixel electrode. The data lines are on the base and are oriented in a first direction. The gate lines are oriented in a second direction that crosses the first direction. The organic thin film transistor includes a source electrode electrically connected to one of the data lines, a gate electrode electrically connected to one of the gate lines, and an organic semiconductor layer. The pixel electrode is disposed in the pixel and electrically connected to the organic thin film transistor. The pixel electrode comprises a transparent oxynitride.Type: GrantFiled: December 27, 2006Date of Patent: October 11, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Je-Hun Lee, Young-Min Kim, Bo-Sung Kim, Jun-Young Lee, Sung-Wook Kang
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Publication number: 20110242467Abstract: A display device is disclosed. The display device includes: a display panel including a display surface and a peripheral area surrounding the display surface, a transparent plate covering the display surface and the peripheral area, a resin layer disposed between the display panel and the transparent plate, and hardened by light, and a reflective layer provided between the transparent plate and the resin layer, along the peripheral area of the display panel.Type: ApplicationFiled: February 10, 2011Publication date: October 6, 2011Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Sung-Gyu KIM, Jae-Mo CHUNG, Hyung-Wook KIM, Sung-Gon SEO, Jong-Kwang HWANG
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Patent number: 8031306Abstract: A device includes a first substrate including a pixel electrode and an underlayer electrode a part of which is opposed to the pixel electrode, a second substrate including a counter-electrode which is opposed to the pixel electrode, and a layer which is held between the first and the second substrate, and which is in a first state prior to power-on and transitions to a second state, at a time of a display operation, wherein the pixel electrode includes a first part that passes light and a second part that reflects light, the second part includes a projection which is opposed to the counter-electrode, and a transverse electric field generating section, which is provided near the projection so as to generate a transverse electric field between the underlayer electrode and the second part, is disposed at an end portion of the second part, which is opposed to the underlying electrode.Type: GrantFiled: July 21, 2008Date of Patent: October 4, 2011Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Tetsuo Fukami, Mitsutaka Okita, Kenji Nakao
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Patent number: 8031303Abstract: A liquid crystal display device includes a pair of substrate; a liquid crystal layer that is formed between the pair of substrates, and that is composed of liquid crystal having negative dielectric anisotropy, the liquid crystal being vertically aligned in an initial state; dot regions each having a transmissive display region and a reflective display region; a liquid-crystal-layer-thickness adjusting layer that is provided between the liquid crystal layer and at least one of the pair of substrates to make the thickness of the liquid crystal layer in the reflective display region smaller than the thickness of the liquid crystal layer in the transmissive display region; a color filter layer that includes plural types of colored layers having different colors corresponding to the respective dot regions, and that is provided on at least one of the pair of substrates; and alignment regulators that are provided on an inner surface of at least one of the pair of substrates to regulate the alignment of the liquid crType: GrantFiled: August 12, 2005Date of Patent: October 4, 2011Assignee: Seiko Epson CorporationInventor: Masakatsu Higa
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Publication number: 20110234927Abstract: In a liquid crystal device, a shoulder portion configured to increase the distance between a element-substrate-side substrate body and a opposed-substrate-side substrate body is provided on the opposed-substrate-side substrate body in an area overlapped with a sealing material including a gap material. Therefore, in an area inside the sealing material, the gap between the element substrate and the opposed substrate is smaller than the gap therebetween in the area overlapped with the sealing material. Therefore, the layer thickness of the liquid crystal layer can be reduced without reducing the size of the gap material.Type: ApplicationFiled: March 16, 2011Publication date: September 29, 2011Applicant: Seiko Epson CorporationInventor: Akihiro Ogawa
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Publication number: 20110234951Abstract: An optical switch having multiple input and output ports directs any number of WDM signals, each arriving at a respective input port, to any one of the output ports. The optical switch includes an array of LC pixels, each positioned to receive a WDM signal transmitted through one of the ports, and an array of reflective elements, each associated with one of the LC pixels. The LC pixels are controlled to cause a WDM signal incident thereon to attain an attenuation state while an output of the WDM signal is being switched by an associated reflective element, such that when an output for a WDM signal is switched from a first port to a second port, the switching can be performed in a hitless manner.Type: ApplicationFiled: June 6, 2011Publication date: September 29, 2011Inventor: Gil Cohen
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Patent number: 8027001Abstract: The present invention provides a transflective liquid crystal display device which can reduce the generation of an image retention even when the transflective liquid crystal display device adopts the constitution in which an aluminum film is formed in a reflective region and a transparent conductive film made of ITO or the like is arranged over the aluminum film.Type: GrantFiled: February 23, 2007Date of Patent: September 27, 2011Assignee: Hitachi Displays, Ltd.Inventors: Toshiki Kaneko, Toshiyuki Matsuura
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Patent number: 8026985Abstract: At least one exemplary embodiment is directed to a reflective liquid crystal display apparatus which includes a polarization beam splitter having a polarization split film used as both a polarizer and an analyzer; a reflective liquid crystal display device; a quarter wave plate; and a projection optical system; where the absolute value of phase difference of diffracted light generated by the reflective liquid crystal display device in a black display state is reduced by the phase difference of the quarter wave plate, and thus the amount of stray light of the diffracted light guided from the polarizing beam splitter to the projection optical system decreases.Type: GrantFiled: August 19, 2009Date of Patent: September 27, 2011Assignee: Canon Kabushiki KaishaInventor: Masayuki Abe
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Publication number: 20110228202Abstract: A liquid crystal display device includes, in sequence, a first substrate, a liquid crystal layer, and a second substrate. The first substrate, the liquid crystal layer, and the second substrate are disposed in a subpixel having a transmissive portion for performing transmissive display and a reflective portion for performing reflective display. The first substrate includes a first electrode and a second electrode. The second substrate includes a third electrode. The first electrode and the second electrode are disposed in the transmissive portion and at least the first electrode and the third electrode are disposed in the reflective portion. Alignment of the liquid crystal layer is controlled by an electric field occurring between the first electrode and the second electrode in the transmissive portion and by an electric field occurring between the first electrode and the third electrode in the reflective portion.Type: ApplicationFiled: May 31, 2011Publication date: September 22, 2011Applicant: SONY CORPORATIONInventors: Masashi Mitsui, Norio Koma
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Patent number: 8022615Abstract: A self emission device (644) that emits light (526). The self emission device can include at least one light emission layer (104) encompassing an area, and generating light over such area in a distributed fashion. The self emission device also can include a first electrode (113) interfacing with a first side (116) of the light emission layer and a second electrode (114) interfacing with a second side (117) of the light emission layer. The first electrode and the second electrode can provide energy used by the light emission layer to illuminate. The self emission device can be a component of a display (100) comprising a reflective display panel (102).Type: GrantFiled: August 14, 2007Date of Patent: September 20, 2011Assignee: Motorola Mobility, Inc.Inventors: XiaoPing Bai, Sen Yang, Wenyong Zhu
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Patent number: 8013962Abstract: An LCD apparatus includes an LCD panel having a color filter for a plurality of color components and having a plurality of pixels each associated with one of the color components of the color filter, and a side lighting-type backlight unit disposed under the LCD panel. The backlight unit includes a light guide and a light source disposed at least at one lateral end of the light guide, and further includes a reflecting layer on a side opposite to a side facing the LCD panel to reflect light coming towards the reflecting layer from the light guide. The color filter is configured to compensate a change in color spectrum in the ambient light that has passed through the LCD panel and the light guide and that has been reflected by the reflecting layer back to the light guide and the LCD panel so that the color temperature of white display of the LCD panel by the ambient light remains substantially the same as the color temperature of the original ambient light.Type: GrantFiled: March 24, 2010Date of Patent: September 6, 2011Assignee: Casio Computer Co., Ltd.Inventors: Toshiharu Nishino, Norihiro Arai, Kunpei Kobayashi
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Patent number: 8008662Abstract: A display substrate having a low-resistance metallic layer and a method of manufacturing the display substrate. The gate conductors are extended in a first direction. The source conductors are extended in a second direction crossing the first direction including a lower layer of molybdenum or a molybdenum alloy, and an upper layer of aluminum or an aluminum alloy. The pixel areas are defined by the gate conductors and the source conductors. A switching element is formed in each of the pixel areas and includes a gate electrode extended from the gate conductor and a source electrode extended from the source conductor. The pixel electrode includes a transparent conductive material, and is electrically connected to a drain electrode of the switching element.Type: GrantFiled: November 25, 2009Date of Patent: August 30, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Joo-Han Kim, Min-Seok Oh, Jun-Young Lee, Sung-Wook Kang
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Patent number: 8009253Abstract: An electro-optical device includes: a sealant provided between a pair of substrates in a frame shape; an electro-optical material layer formed by sealing an electro-optical material within a region surrounded by the sealant; an insulating layer provided within the region surrounded by the sealant on at least one of the pair of substrates; and an alignment layer provided between the insulating layer and the electro-optical material layer. The region surrounded by the sealant includes an effective display region where display is performed and a peripheral region located between the effective display region and the sealant, and the insulating layer within the peripheral region is formed with a recessed portion to which a material of the alignment layer flows.Type: GrantFiled: February 11, 2009Date of Patent: August 30, 2011Assignee: Sony CorporationInventor: Norihito Harada
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Publication number: 20110205468Abstract: A light-condensing means and a pixel electrode may be formed on the same surface side of a substrate, and a region transmitting visible light in the pixel electrode may be provided so as to overlap with an optical axis of the light-condensing means. An anisotropic light-condensing means having a condensing direction X and a non-condensing direction Y may be used, and the light-condensing means may be provided so that the non-condensing direction Y corresponds to a longitudinal direction of the region transmitting visible light in the pixel electrode.Type: ApplicationFiled: February 11, 2011Publication date: August 25, 2011Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Yoshiharu HIRAKATA, Shunpei YAMAZAKI
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Patent number: 8004738Abstract: An electro-wetting display panel including an active device array substrate, a dielectric layer, a wall structure, a first liquid containing dyes, a second liquid, and an opposite substrate is provided. The active device array substrate includes a substrate, scan lines, data lines, and pixels. The pixels are electrically connected with the scan lines and the data lines accordingly. Each pixel includes an active device, a transparent pixel electrode, and a reflective layer. The transparent pixel electrode located above the reflective layer is electrically connected with the active device. The reflective layer has a bumpy surface. The dielectric layer is disposed on the active device array substrate. The wall structure is disposed on the dielectric layer. The first liquid is disposed on the dielectric layer. The opposite substrate is disposed above the active device array substrate. The second liquid is disposed between the active device array substrate and the opposite substrate.Type: GrantFiled: February 10, 2010Date of Patent: August 23, 2011Assignee: Au Optronics CorporationInventors: Syuan-Ling Yang, Yi-Hsueh Lin, Shih-Chyuan Fan-Jiang, Chih-Hung Shih
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Patent number: 8004637Abstract: An operative reflection and absorption plate including a substrate having a moth eye structure on its surface is used, whereby an absorbing status and a reflecting status can be realized without using a polarizing plate, and a display element exhibiting a bright and high contrast can be obtained.Type: GrantFiled: November 14, 2008Date of Patent: August 23, 2011Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Yasushi Kawata, Yuuzo Hisatake, Masaki Obi
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Patent number: 7995163Abstract: A liquid crystal device includes a pair of substrates and a liquid crystal layer between the pair of substrates. In addition, the device includes a plurality of dots capable of independently applying voltage to the liquid crystal layer, each dot having a dot area that includes a first section and a second section. A color filter is arranged in the first section of at least one of the dots. A substantially transparent area is arranged in the at least one of the dots in the second section where the color filter is not arranged.Type: GrantFiled: October 25, 2010Date of Patent: August 9, 2011Assignee: Seiko Epson CorporationInventors: Osamu Okumura, Eiji Okamoto, Tsuyoshi Maeda, Toshiharu Matsushima
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Patent number: 7995166Abstract: A display panel, a display device, and a terminal device, which can achieve a high image quality by decreasing deterioration of the image quality that may be caused due to combining a reflection plate including an uneven structure with an image distributing device, are provided. The display panel includes a lenticular lens for distributing light emitted from each of pixels towards different directions from each other along an arranging direction (a first direction) of a pixel for displaying an image for a first viewpoint and a pixel for displaying an image for a second viewpoint within a pixel unit, wherein a reflection plate including an uneven structure is formed in each of the pixels, and a layout pattern of the uneven structure on the reflection plate is different to the lenticular lens.Type: GrantFiled: November 14, 2007Date of Patent: August 9, 2011Assignee: NEC LCD Technologies, Ltd.Inventor: Shinichi Uehara
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Patent number: 7995165Abstract: An embodiment of the present invention discloses a Liquid Crystal on Silicon (LCOS) display unit, in which a Metal-Insulator-Metal (MIM) capacitor consisting of a micromirror layer, a insulation layer and a light shielding layer is formed by grounding the light shielding layer on a pixel switch circuit layer. Therefore the pixel switch circuit and the capacitor are in vertical distribution, that is, the switch circuit and the capacitor both have an allowable design area of the size of one pixel. Another embodiment of the present invention provides a method for forming a Liquid Crystal on Silicon (LCOS) display unit.Type: GrantFiled: September 6, 2007Date of Patent: August 9, 2011Assignee: Semiconductor Manufacturing International (Shanghai) CorporationInventors: Herb He Huang, Xianyong Pu, Jianhong Mao, Yiqun Chen, Jing Fu, Zhongshan Hong, Yanghui Xiang