With Unequal Areas For Different Colors Or With Fractional Shift Between One Line Of Colors And The Next Patents (Class 349/109)
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Patent number: 8625059Abstract: In a screen configuration in which pixels are in a delta arrangement, video signal lines are formed on every other pixel, and two scanning lines in one set are disposed, transmittance of the screen is improved. Pixels corresponding to a red pixel (R), a green pixel (G), and a blue pixel (B) are disposed in a delta arrangement in a TFT substrate. A red color filter, a green color filter, a blue color filter are formed, in a counter substrate, corresponding to the red pixel (R), the green pixel (G), and the blue pixel (B) of the TFT substrate. A black matrix is formed to a portion where the color filter is not present. Two blue color filters are formed continuously adjacent each other in the first direction, and a black matrix is not formed between the blue color filters adjacent each other.Type: GrantFiled: April 26, 2012Date of Patent: January 7, 2014Assignee: Hitachi Displays, Ltd.Inventor: Takahiro Nagami
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Patent number: 8619202Abstract: A projector includes: a lighting device that emits light of a plurality of different colors; a plurality of liquid crystal light valves that modulate the light of a plurality of colors; a color synthesizing optical system that synthesizes the color light modulated by the plurality of liquid crystal light valves; and a projection optical system that projects the light synthesized by the color synthesizing optical system to a projection target face. A cell thickness of one liquid crystal light valve modulating light of one color of the plurality of liquid crystal light valves is smaller than a cell thickness of the other liquid crystal light valves modulating the light of other colors, and an alignment state of liquid crystal at the time of applying the maximum gradation voltage is substantially the same in one liquid crystal light value and the other liquid crystal light valve.Type: GrantFiled: December 15, 2011Date of Patent: December 31, 2013Assignee: Seiko Epson CorporationInventor: Akihide Haruyama
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Patent number: 8610847Abstract: A liquid crystal display (LCD) includes an array substrate having pixel regions, the pixel regions including thin film transistors and pixel electrodes, a color filter substrate above the array substrate, the color filter substrate including a plurality of color filters corresponding to respective pixel regions in the array substrate, a black matrix in spaces between the plurality of color filters, and a color frame layer surrounding the plurality of color filters and the black matrix, and a liquid crystal layer interposed between the array substrate and the color filter substrate.Type: GrantFiled: December 7, 2010Date of Patent: December 17, 2013Assignee: Samsung Display Co., Ltd.Inventor: Youn-Hwan Jung
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Patent number: 8576360Abstract: The present invention provides a color filter substrate in which reduction in display qualities is suppressed even if color mixing is generated when a plurality of differently colored transparent layers are formed by a method using a liquid material, such as an ink jet method, and to provide a liquid crystal display panel and a liquid crystal display device each including the color filter substrate. The color filter substrate of the present invention comprises a plurality of color display units, each of the color display units including four or more differently colored transparent layers, wherein the color filter substrate includes a frame structure which surrounds each of the differently colored transparent layers, and the differently colored transparent layers are arranged such that an average of color difference values for pairs of adjacent differently colored transparent layers becomes minimum.Type: GrantFiled: June 30, 2010Date of Patent: November 5, 2013Assignee: Sharp Kabushiki KaishaInventors: Yoshitaka Okumoto, Yusuke Waratani, Keita Katayose, Takayuki Nakano
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Patent number: 8547297Abstract: In an exemplary embodiment, the color resolution of a first image display screen is increased by assembling the first display screen with a second image display screen in an overlaid manner. Transmissive color filter elements are provided associated with addressable sub-pixels of the display screens. A first set of sub-pixels of the first screen and a second set of sub-pixels of the second screen are cooperatively addressed to display an image pixel of the display assembly, where the first set of sub-pixels addressed is spatially offset from the second set of sub-pixels addressed along the planar surfaces of the display screens. The exemplary display assembly formed by the display screens thereby enables the use of more than three colors to define a broadened color space relative to that defined by the display screens separately.Type: GrantFiled: July 3, 2012Date of Patent: October 1, 2013Assignee: 3-D Virtual Lens Technologies, LLCInventors: Reuben Hoppenstein, Eric Rosenthal
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Patent number: 8547507Abstract: A reflective liquid crystal display (LCD) is provided for efficiently preventing white coordinates from being yellowish. The LCD includes a substrate having red color filters, green color filters, and blue color filters. The blue color filters have an overall area smaller than that of the red color filters and the green color filters while blocking green light better than the red color filters and blocking red light better than the green color filters.Type: GrantFiled: January 28, 2011Date of Patent: October 1, 2013Assignee: Samsung Display Co., Ltd.Inventors: Nam-seok Roh, Soo-guy Rho
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Patent number: 8514353Abstract: A color filter including a red (R) pixel, a green (G) pixel and a blue (B) pixel, wherein at least one of the red (R) pixel, the green (G) pixel and the blue (B) pixel includes one or more kinds of dyes and one or more kinds of pigments and wherein areas of the red (R) pixel, the green (G) pixel and the blue (B) pixel are not the same.Type: GrantFiled: March 21, 2011Date of Patent: August 20, 2013Assignee: FUJIFILM CorporationInventors: Naoyoshi Yamada, Ryuji Saneto, Junichi Ito, Shigekazu Suzuki
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Patent number: 8502940Abstract: Disclosed herein is a display apparatus including a first substrate patterned to create pixel electrodes, a second substrate placed to face the first substrate and a liquid-crystal layer sandwiched by the first and second substrates wherein: one of the first and second substrates is patterned to create color filters each provided for one of a plurality of different colors as color filters each associated with one of the pixel electrodes each included in one of pixels each provided for one of the different colors; each of the pixels each provided for one of the different colors has a pixel area which varies from color to color; and the ratio of the electrode area of any particular one of the pixel electrodes to the pixel area of the pixel that includes the particular pixel electrode varies from color to color.Type: GrantFiled: October 8, 2008Date of Patent: August 6, 2013Assignee: Japan Display West, Inc.Inventors: Hironao Tanaka, Hidemasa Yamaguchi, Yoshihiro Sakurai
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Patent number: 8502952Abstract: Color cholesteric liquid crystal display devices and fabrication methods thereof are provided. The color cholesteric liquid crystal display device includes a first substrate, a second substrate and a gap interposed therebetween. A patterned enclosed structure, formed by adhering a first patterned enclosed structure on the first substrate and a second patterned enclosed structure on the second substrate, is interposed between the first substrate and the second substrate, dividing a plurality of color sub-pixel channels. A plurality of the color cholesteric liquid crystals are respectively filled into each of the color sub-pixel channel, wherein the first patterned enclosed structure is tightly adhered to the second patterned enclosed structure so as to prevent mixing of the color cholesteric liquid crystals between adjacent color sub-pixel channels.Type: GrantFiled: December 15, 2010Date of Patent: August 6, 2013Assignee: Industrial Technology Research InstituteInventors: Yuan-Chang Liao, Yu-Cheng Lai, Yi-Shou Tsai, Kuan-Wei Wu
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Patent number: 8497957Abstract: A display device in which an image with a wide color reproduction range and bright red can be displayed is provided. The display device is a display device such as, for example, a liquid crystal display device, a cathode ray tube, an organic electroluminescent display device, a plasma display panel, and a field emission display. The display device includes a display surface including a pixel having red, green, blue, and yellow sub-pixels, wherein the red sub-pixel preferably has the largest aperture area.Type: GrantFiled: July 13, 2010Date of Patent: July 30, 2013Assignee: Sharp Kabushiki KaishaInventors: Kozo Nakamura, Shun Ueki, Tokio Taguchi, Akiko Itou
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Patent number: 8488083Abstract: An image display device, particularly an IPS mode LCD, includes a light source, an array substrate including a display region and a peripheral region around the display region, a color filter substrate including a plurality of color filters having different transmissivities, a liquid crystal layer including a plurality of liquid crystal molecules, and an alignment film for aligning the liquid crystal molecules. Characteristically, a light transmittance per unit area in the peripheral region is equivalent to or less than a light transmittance per unit area in the display region.Type: GrantFiled: December 7, 2004Date of Patent: July 16, 2013Assignee: Chimei Innolux CorporationInventors: Kaoru Kusafuka, Mitsuru Ikezaki
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Patent number: 8482700Abstract: A panel for a liquid crystal display device includes: a first mother substrate for cutting out color filter substrates including a first cell area corresponding to a first cell and a second cell area corresponding to a second cell therefrom; a first colored layer arranged in the first cell area of the first mother substrate; a second colored layer arranged in the second cell area of the first mother substrate; a second mother substrate for cutting out array substrates therefrom; and liquid crystal sandwiched between the first mother substrate and the second mother substrate. The first colored layer and the second colored layer are made of the same material and have portions which have the same thickness. A hole is formed in the second colored layer so as to make color reproducibility of the second colored layer lower than color reproducibility of the first colored layer.Type: GrantFiled: June 29, 2010Date of Patent: July 9, 2013Assignee: Panasonic Liquid Crystal Display Co., Ltd.Inventors: Shinpei Segawa, Hiroaki Iwato, Yoshiki Watanabe, Kazumi Kanesaka
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Patent number: 8471272Abstract: A plurality of rectangle semiconductor substrates are attached to a single mother glass substrate. A pixel structure is determined so that even if a gap or a an overlapping portion is generated in a boundary between a plurality of semiconductor substrates, a single-crystal semiconductor layer does not overlap with the gap or the overlapping portion. Two TFTs are located in a first unit cell including the first light emitting element, four TFTs are located in a second unit cell including the second light emitting element, and no TFT is located in a third unit cell including the third light emitting element. A boundary line is between the third unit cell and a fourth unit cell.Type: GrantFiled: September 8, 2010Date of Patent: June 25, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Shunpei Yamazaki
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Patent number: 8441601Abstract: A display apparatus includes a first substrate, a second substrate facing the first substrate, and pixels disposed between the first and second substrates to display an image. Each pixel includes a red sub-pixel for displaying a red color, a green sub-pixel for displaying a green color, a blue sub-pixel for displaying a blue color, a yellow sub-pixel for displaying a yellow color, and a white sub-pixel for displaying a white color. The blue sub-pixel has an area substantially equal to or larger than an area of each of the red, green, yellow, and white sub-pixels.Type: GrantFiled: May 19, 2011Date of Patent: May 14, 2013Assignee: Samsung Display Co., Ltd.Inventors: Sanghun Lee, YoungJe Cho, Gwan-Soo Kim, Se Ah Kwon, Dong-Uk Kang
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Patent number: 8421966Abstract: A liquid crystal display including a backlight unit and a liquid crystal display panel is provided. A spectrum of the backlight unit has relative maximum brightness peaks at wavelength between 460 nm to 480 nm, between 505 nm to 525 nm, and between 610 nm to 630 nm. The liquid crystal display panel is disposed above the backlight unit. The liquid crystal display panel has a red color filter layer (Rx, Ry, RY), a green color filter layer (Gx, Gy, GY), a blue color filter layer (Bx, By, BY) and a yellow color filter layer (Yx, Yy, YY), wherein under the backlight source, the red color filter layer, the green color filter layer, the blue color filter layer and the yellow color filter layer satisfy following conditions: Rx?0.654; Ry?0.330; Gx?0.253; Gy?0.605; Bx?0.136; By?0.146; Yx?0.408; Yy?0.534; 0.83?RY/GY?0.87; 0.86?GY/BY?0.92; 0.83?BY/YY?0.87 and 1.5?YY/RY?1.55.Type: GrantFiled: May 19, 2011Date of Patent: April 16, 2013Assignee: Au Optronics CorporationInventors: Ying-Li Wang, Yun-I Liu, Chun-Liang Lin, Chien-Kai Chen, Chen-Hsien Liao
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Patent number: 8405803Abstract: A liquid crystal display device includes a first substrate; first to fourth pixels arranged in a matrix pattern on the first substrate, the fourth pixel having an area smaller than each of the first and second pixels and larger than the third pixel; a second substrate facing the first substrate; first to fourth color filter patterns formed on the second substrate and respectively corresponding to the first to fourth pixels, wherein the first to fourth color filter patterns have green, blue, white and red colors, respectively; and a liquid crystal layer interposed between the first and second substrates.Type: GrantFiled: November 12, 2009Date of Patent: March 26, 2013Assignee: LG Display Co., Ltd.Inventors: Young-Hoon Kim, Joong-Min Yoon
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Patent number: 8395730Abstract: A liquid crystal display device includes a first substrate and a second substrate, liquid crystal sandwiched between the first substrate and the second substrate, a first red color filter, a green color filter, a blue color filter, a second red color filter disposed between the first substrate and the second substrate, and arranged in a first direction, a first light blocking film disposed between the first red color filter and the green color filter, a second light blocking film disposed between the green color filter and the blue color filter, and a third light blocking film disposed between the blue color filter and the second red color filter, and drain signal lines, thin film transistors, and pixel electrodes formed on the first substrate. Drain electrodes of the thin film transistors are connected to drain signal lines, and source electrodes of the thin film transistors are connected to the pixel electrodes.Type: GrantFiled: September 6, 2012Date of Patent: March 12, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Tohru Sasaki, Osamu Ito
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Patent number: 8395729Abstract: An LCD device is discussed, which comprises first and second substrates confronting each other; a liquid crystal layer between the first and second substrates; and red, green, blue, and fourth color filters on the first substrate; wherein the fourth color filter is formed of any color whose transparency is better than that of at least one of the red, green, and blue color filters, and wherein an effective area of the fourth color filter is smaller than that of at least one of the red, green, and blue color filters. The LCD device can display white color with good transparency by properly adjusting the effective areas of the four color filters, whereby there is no need to modulate light for display of the white color in a backlight unit, to thereby improve luminance of light emitted from the backlight unit.Type: GrantFiled: August 9, 2010Date of Patent: March 12, 2013Assignee: LG Display Co., Ltd.Inventors: Sang Hun Han, Joong Min Yoon, Young Hoon Kim, Ho Chun Lee, Seung Hoon Ji
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Patent number: 8384858Abstract: A backlight source has a spectral distribution such that luminances of red and green light are stronger than luminance of blue light. A color filter includes a blue coloring layer that can best transmit a blue light, a red coloring layer that can best transmit a red light, a green coloring layer that can best transmit a green light, and a porous layer in which penetration holes are formed so as to penetrate therethrough in its thickness direction. The blue coloring layer is formed so as to be thicker than the red and green coloring layers. A liquid crystal layer is formed so as to be thinner in a portion facing the blue coloring layer than a portion facing the red and green coloring layers. The porous layer is formed from the same material and to have the same thickness as the blue coloring layer.Type: GrantFiled: November 3, 2010Date of Patent: February 26, 2013Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Kikuo Ono, Kazumi Kanesaka
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Publication number: 20130038798Abstract: In a display device, the chromaticity of display images is properly corrected while the brightness is maintained at a high level. A liquid crystal display device 10, 50 according to the present invention includes a liquid crystal panel 11 and a backlight device. The liquid crystal panel 11 includes a pair of substrates 11a and 11b and a liquid crystal layer 11c containing substances having optical characteristics that varies according to an application of electric field. The lighting device includes LEDs 24 or cold cathode tubes 55 as light sources. The lighting device is configured to illuminate the liquid crystal panel 11. On one of the substrates 11a and 11b, color filters 19 including R, G, B, Y color portions in red, green, blue and yellow, respectively, are formed. Each of the R color portion and the B color portion has an area relatively larger than an area of each of the Y color portion and the G color portion.Type: ApplicationFiled: November 9, 2010Publication date: February 14, 2013Applicant: SHARP KABUSHIKI KAISHAInventor: Yoshiki Takata
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Patent number: 8368847Abstract: A triple-gate LCD panel includes a transistor array substrate, a color filter array substrate, and a liquid crystal layer disposed between the transistor array substrate and the color filter array substrate. A transistor array of the transistor array substrate includes a plurality of scan lines, data lines, and pixel switches connected to the scan lines and the data lines. The pixel switches in any column are connected to two adjacent data lines respectively. Two adjacent pixel switches in any column are connected to the same data line. The pixel switches, the liquid crystal layer, and the color filter array substrate define a plurality of monochromatic pixel units. The monochromatic pixel units in any row are all a plurality of red pixel units, green pixel units, or blue pixel units. The red pixel units, the green pixel units, and the blue pixel units in any column are arranged periodically.Type: GrantFiled: January 18, 2011Date of Patent: February 5, 2013Assignee: Chunghwa Picture Tubes, Ltd.Inventors: Guang-Yi Zeng, Chih-Hsiang Hsu
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Patent number: 8339550Abstract: Embodiments of the present invention provide a Liquid Crystal Display (LCD) panel, including an upper substrate and a lower substrate between which a liquid crystal layer is sealed. The lower substrate includes a plurality of sub-pixel regions arranged in regular patterns. The upper substrate includes Black Matrixes (BM) and an upper transparent conductive layer which are formed in sequence on the bottom surface of an upper transparent substrate. The lower substrate includes a first metal layer, a dielectric layer, a second metal layer, an organic layer, a first insulation layer, a third metal layer, a second insulation layer, a fourth metal layer, a passivation layer and a lower transparent conductive layer which are deposited in sequence on the upper surface of a lower transparent substrate. Embodiments of the present invention also provide a method for producing the LCD panel.Type: GrantFiled: September 15, 2009Date of Patent: December 25, 2012Assignee: Infovision Optoelectronics (Kunshan) Co., Ltd.Inventors: Hongqing Cui, Te-Chen Chung
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Patent number: 8330905Abstract: A liquid crystal display device capable of reducing manufacturing costs is disclosed. The liquid crystal display device includes first and second substrates facing each other, a liquid crystal layer filled between the first and second substrates, a first common electrode formed in a first pixel region on the first substrate in correspondence with a first subpixel for emitting a light of a first color, and having a first area, wherein a common voltage is applied to the first common electrode, and a second common electrode formed in a second pixel region on the first substrate in correspondence with a second subpixel for emitting light of a second color different from the first color and having a second area different from the first area, wherein the common voltage is applied to the second common electrode.Type: GrantFiled: December 28, 2010Date of Patent: December 11, 2012Assignee: LG Display Co., Ltd.Inventors: Mi Kyung Lee, Hyun Suk Jin
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Patent number: 8310629Abstract: A liquid crystal display (LCD) device including a backlight module and an LCD panel is provided. The backlight module is used for providing light penetrating through the LCD panel disposed at one side of the backlight module. The LCD panel includes a substrate, a scan line, a first and a second data line, a first and a second switch element and a first and a second pixel electrode. The scan line and the two data lines, which are perpendicular to the scan line, are disposed on the substrate. The switch elements are respectively disposed at the intersection of the scan line and the first data line and the intersection of the scan line and the second data line. The pixel electrodes are respectively electrically connected to the switch elements. The area of the first pixel electrode is substantially less than that of the second one.Type: GrantFiled: September 14, 2009Date of Patent: November 13, 2012Assignee: Chimei Innolux CorporationInventors: Chien-Hong Chen, Chih-Yung Hsieh, Ying-Jen Chen
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Patent number: 8294853Abstract: An object of the invention is to accurately and easily manufacture a color filter. A method of manufacturing a color filter comprises: a first step of forming a first rib (220) forming a light shield layer and a second rib (230) having a smaller height than the first rib (220) in pattern on a base layer (1) by means of a photolithography method; a second step of forming a step-forming layer (4) by dripping an optical transmissive material into an area defined by the first and second ribs (220, 230) by means of ink-jet technique; and a third step of forming a coloring layer by dripping an optical coloring material (5) into an area defined by the first rib (220) by means of ink-jet technique after forming the step-forming layer (4).Type: GrantFiled: July 14, 2005Date of Patent: October 23, 2012Assignee: TPO Hong Kong Holding Limited Corp.Inventor: Yasuhiro Matsushita
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Patent number: 8269925Abstract: A liquid crystal display device which can obviate color mixing of colors when a display screen is viewed from oblique directions while enhancing a numerical aperture of a pixel is provided. In a liquid crystal display device having red sub pixels, green sub pixels and blue sub pixels, a width of a light blocking film arranged on a boundary portion between the blue sub pixel and the sub pixel of other color is set larger than a width of a light blocking film arranged on a boundary portion between the red sub pixel and the green sub pixel.Type: GrantFiled: July 1, 2009Date of Patent: September 18, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Crystal Display Co., Ltd.Inventors: Takahiro Ochiai, Tohru Sasaki, Osamu Ito
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Patent number: 8242520Abstract: A pixel structure including a pair of first sub-pixels, a pair of second sub-pixels and an electrical tunable photonic crystal layer is provided. The pair of first sub-pixels are substantially identical in area, and the pair of second sub-pixels are substantially identical in area. The area of each second sub-pixel is twice the area of each first sub-pixel. In addition, the electrical tunable photonic crystal layer is disposed over the pair of first sub-pixels and the pair of second sub-pixels.Type: GrantFiled: May 4, 2011Date of Patent: August 14, 2012Assignee: Au Optronics CorporationInventors: Syuan-Ling Yang, Ching-Huan Lin
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Patent number: 8243226Abstract: A tiled display device includes a combination of multiple display devices to form a larger tiled display device. The larger tiled display device minimizes the boundaries between in the multiple display devices to improve the active area of the display. A partition wall between display devices may be configured to reduce the distance between the combined display devices.Type: GrantFiled: October 5, 2010Date of Patent: August 14, 2012Assignee: LG Display Co., Ltd.Inventors: Gi Bin Kim, Hak Mo Hwang
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Patent number: 8208099Abstract: Provided is a backlit liquid crystal display apparatus having one pixel unit comprising RGB three primary color regions and a white region or a region having low color concentration, so that high brightness can be compatible with color purity. A pixel unit comprises RGB main pixels and G/R sub-pixels. In a lower gray scale, color purity has priority in display with main pixels, while in a higher gray scale, color purity has priority in display with main and sub-pixels, whereby high brightness can be compatible with color purity. Sub-pixels may be consisted only by green sub-pixels.Type: GrantFiled: September 1, 2006Date of Patent: June 26, 2012Assignees: Hitachi Displays, Ltd., Panasonic Liquid Display Co., Ltd.Inventors: Yuka Utsumi, Tsunenori Yamamoto, Kikuo Ono
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Patent number: 8169570Abstract: A liquid crystal display device having a non-rectangular display panel includes an active area which is defined by a peripheral shield layer. A plurality of pixels are formed in the active area in a matrix and typically each pixel includes a plurality of sub-pixels to display respective different colors. The pixels include a first pixel arranged in the peripheral region of the active area and a second pixel arranged at an inner region. A part of the first pixel located in a peripheral region of the active area is covered with the peripheral shield layer. The thickness of the color filter layer arranged in the first pixel where the peripheral shield layer overlaps with the first pixel is smaller than that of a same color filter arranged in the second pixel having a larger effective display area than that of the first pixel area.Type: GrantFiled: July 23, 2009Date of Patent: May 1, 2012Assignee: Toshiba Mobile Display Co., Ltd.Inventor: Shin Morita
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Patent number: 8139182Abstract: A color filter includes a transparent support, a first color layer formed on the support, which includes stripe-shaped first color pixel formation sections and second-and-third color pixel windows arranged at predetermined intervals along a first direction, respectively, a second color layer formed to overlap with the first color layer, in which the second color layer having stripe-shaped second color pixel formation sections and first-and-third color pixel windows arranged at predetermined intervals along the first direction, respectively, and a third color layer having island-shaped third color pixel formation sections apart from each other.Type: GrantFiled: April 20, 2011Date of Patent: March 20, 2012Assignee: NEC CorporationInventors: Sounosuke Takahashi, Yoshikazu Sakaguchi, Shinichi Nishida, Mamoru Okamoto
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Publication number: 20120062824Abstract: A display apparatus includes a first substrate, a second substrate facing the first substrate, and pixels disposed between the first and second substrates to display an image. Each pixel includes a red sub-pixel for displaying a red color, a green sub-pixel for displaying a green color, a blue sub-pixel for displaying a blue color, a yellow sub-pixel for displaying a yellow color, and a white sub-pixel for displaying a white color. The blue sub-pixel has an area substantially equal to or larger than an area of each of the red, green, yellow, and white sub-pixels.Type: ApplicationFiled: May 19, 2011Publication date: March 15, 2012Inventors: Sanghun LEE, YoungJe Cho, Gwan-Soo Kim, Se Ah Kwon, Dong-Uk Kang
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Patent number: 8130437Abstract: A color filter including a substrate, a plurality of pixel units and a transparent electrode layer is provided. The substrate has a plurality of pixel regions. Each pixel region has a plurality of first sub-pixel regions and a second sub-pixel region. Each pixel unit is disposed in one of the pixel regions corresponding thereto and includes a plurality of and a white filter film. Each color filter film is disposed in one of the first sub-pixel regions corresponding thereto and the white filter film is disposed in the second sub-pixel region. Since the area of the white filter film is larger than the area of each color filter film, the color filter has high light-transmittance. The transparent electrode layer is disposed on the pixel units. Furthermore, a color reflective display device with the color filter is disclosed.Type: GrantFiled: July 26, 2009Date of Patent: March 6, 2012Assignee: E Ink Holding Inc.Inventors: Po-Wen Hsiao, Yuan-Chih Tasi, Lee-Tyng Chen, Chuan-Feng Liu, Ted-Hong Shinn
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Patent number: 8120745Abstract: A method of fabricating a substrate for a liquid crystal display device includes: disposing a transparent substrate on a stage of a laser apparatus; irradiating a laser beam having a predetermined power onto the transparent substrate to form a light shielding region in the transparent substrate surrounding first to third light transmitting regions; and forming a color filter layer including red, green and blue sub-color filters respectively in the first to third light transmitting regions, wherein boundaries of the red, green and blue sub-color filters correspond to the light shielding region.Type: GrantFiled: March 29, 2011Date of Patent: February 21, 2012Assignee: LG Display Co., Ltd.Inventor: Jae-Young Oh
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Publication number: 20120038866Abstract: A color filter which is able to form a liquid crystal display device that has few variation in display caused due to difference in exposure illuminance among exposure heads and/or misalignment in pattern position, and that is excellent in display quality, and an exposure mask used for producing the color filter are provided. A color filter 1 includes: a substrate 2; black matrixes 3 provided on the substrate 2; and a plurality of colored layers 4 which partially overlap the black matrixes 3 in at least a first direction. The widths of overlap portions 5 in which the black matrixes 3 and the colored layers 4 overlap each other in the first direction are varied over the entirety of a display area, and the degree of the variation is uniformly distributed over the entirety of the display area.Type: ApplicationFiled: April 28, 2010Publication date: February 16, 2012Inventors: Kohei Matsui, Ryosuke Yasui
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Patent number: 8111352Abstract: The present invention relates to a new optical component comprising an anisotropic diffuser (5,10) with patterned anisotropy; and means (9, 11, 14, 16, 17, 20, 21, 30, 32) for providing a colorshift observable upon changing viewing angle (6) and/or changing angle of incident light (2). It also relates to methods for making such an optical component and uses of such optical components as security elements with a very high level of security.Type: GrantFiled: June 30, 2005Date of Patent: February 7, 2012Assignee: Rolic AGInventors: Martin Stalder, Mohammed Ibn-Elhaj, Franco Moia
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Patent number: 8102499Abstract: The invention provide a fabrication method for a color cholesteric liquid crystal display device, comprising: providing a first substrate; forming a patterned enclosed structure on the first substrate, wherein the patterned enclosed structure comprises a plurality of stripe wall structures, and one end of each stripe wall structure is connected to and perpendicular to a straight seal line, thereby dividing a first LC channel with a first opening, a second closed LC channel, and a third closed LC channel, and the length of the first LC channel exceeds that of the second LC channel, and the length of the second LC channel exceeds that of the third LC channel; providing a second substrate with an adhesion layer formed thereon; assembling the first substrate and the second substrate to tightly seal the adhesion layer and the patterned enclosed structure.Type: GrantFiled: November 29, 2010Date of Patent: January 24, 2012Assignee: Industrial Technology Research InstituteInventors: Yuan-Chang Liao, Jen-Chieh Yang, Kuo-Lung Lo
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Patent number: 8089583Abstract: One or more embodiments of the present invention provide apparatuses, methods and systems to form a thin LED backlight unit for a large-screen flat-panel display. The backlight unit is able to achieve improved color mixing within a shorter mixing distance than the conventional art, while maintaining desired brightness uniformity, thereby allowing for a shorter bezel of a display device. One or more embodiments of the present invention include one or more light guides, which, by operating together, provide thin backlight units. High system efficiency is provided by introducing a recycling enhancement component, and uniform color distribution is achieved by incorporating color shift compensation. Multiple light guides are arranged adjacent to one another can offer a progressive scan illumination feature.Type: GrantFiled: June 18, 2009Date of Patent: January 3, 2012Assignee: Jabil Circuit, Inc.Inventors: Lin Li, Israel J. Morejon
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Publication number: 20110317109Abstract: A liquid crystal display apparatus is disclosed.Type: ApplicationFiled: March 31, 2011Publication date: December 29, 2011Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: Dong-Yoon SO, Yong-Je JEON, Sun-Kyo JUNG
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Patent number: 8085366Abstract: A thin film transistor array panel according to an exemplary embodiment includes a first colored member overlapping a thin film transistor and a plurality of second colored members simultaneously formed on the first colored member. Accordingly, it is possible to prevent light leakage current of the thin film transistor, to easily repair deterioration of the thin film transistor, to prevent light leakage of a peripheral area and between color filters, and to form stable patterns.Type: GrantFiled: June 16, 2009Date of Patent: December 27, 2011Assignee: Samsung Electronics Co., Ltd.Inventor: Sun-Young Chang
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Patent number: 8059233Abstract: There is disclosed a transflective liquid crystal display having pixels each including a reflective region and a transmissive region. The aperture ratio of the pixels can be enhanced. End portions of two adjacent color filters are overlapped to form an optically shielding portion for each pixel. The optically shielding portion and the reflective region cooperate to form an optically shielding film acting as a black matrix for the transmissive region. The aperture ratio is enhanced by improving the positional relationship between the reflective regions and the color filters.Type: GrantFiled: February 16, 2006Date of Patent: November 15, 2011Assignee: Hitachi Displays, Ltd.Inventors: Katsuyoshi Ishihara, Hironobu Yamada
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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: 8035778Abstract: A display panel including a pair of substrates, a color filter layer, and a display medium is provided. The substrates including a plurality of pixels, wherein each pixel at least having a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The color filter layer is disposed on one of the substrates and at least has a first color filtering pattern disposed in the first sub-pixel, a second color filtering pattern disposed in the second sub-pixel, a third color filtering pattern disposed in the third sub-pixel, and a fourth color filtering pattern disposed in the fourth sub-pixel. The display medium is disposed between the pair of substrates, wherein the display medium correspondingly disposed in the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel has thicknesses of T1, T2, T3 and T4, respectively, and T1>T2>T3 and T1>T4>T3.Type: GrantFiled: May 20, 2009Date of Patent: October 11, 2011Assignee: Au Optronics CorporationInventors: Chih-Cheng Chan, Sheng-Wen Cheng
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Patent number: 8031299Abstract: The present invention is intended to control the color temperature of white exhibited by a liquid crystal display device. White is produced when light waves emitted through pixels associated with three colors of red; green, and blue have maximum intensities. The amounts of light emitted through the respective pixels are controlled by differentiating the shapes of the pixel electrodes disposed at the respective pixels from one another. Thus, the color temperature of white is controlled. Otherwise, the shapes of interceptive films disposed at the respective pixels are differentiated from one another in order to control light waves emitted through the respective pixels. Thus, the color temperature of white is controlled. The interceptive film may be shaped like the pixel electrode. Otherwise, the interceptive film may be realized with an interceptive pattern other than that of the pixel electrode or one of openings bored in a black matrix.Type: GrantFiled: January 21, 2010Date of Patent: October 4, 2011Assignee: Hitachi Displays, Ltd.Inventors: Ikuko Mori, Munenori Motooka, Ryutaro Oke, Kazunori Ojima, Kikuo Ono
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Publication number: 20110234950Abstract: A color filter including a red (R) pixel, a green (G) pixel and a blue (B) pixel, wherein at least one of the red (R) pixel, the green (G) pixel and the blue (B) pixel includes one or more kinds of dyes and one or more kinds of pigments and wherein areas of the red (R) pixel, the green (G) pixel and the blue (B) pixel are not the same.Type: ApplicationFiled: March 21, 2011Publication date: September 29, 2011Applicant: FUJIFILM CORPORATIONInventors: Naoyoshi YAMADA, Ryuji SANETO, Junichi ITO, Shigekazu SUZUKI
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Patent number: 8023072Abstract: A color filter substrate is used in a display device including pixels arranged in columns and rows to define a matrix pattern. The color filter substrate includes a transparent substrate and coloring layers, including a first color filter layer, a second color filter layer and an light shielding layer, provided on the transparent substrate. The first and second color filter layers include a first color filter column and a second color filter column, respectively, each of which is arranged for an associated column of pixels. The light shielding layer includes an light shielding column, which is provided for a gap between two adjacent columns of pixels.Type: GrantFiled: June 20, 2005Date of Patent: September 20, 2011Assignee: Sharp Kabushiki KaishaInventors: Toshihide Tsubata, Tsuyoshi Tokuda, Masayuki Tsuji
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Patent number: 7990499Abstract: The present invention provides a transflective display device capable of reducing a difference in white balance between transmissive display and reflective display. The display device of the present invention is a transflective display device including three or more filters having different colors in a pixel, each of the three or more filters having different colors, including: a transmissive region for displaying an image by transmitting light from a backlight; and a reflective region for displaying an image by reflecting surrounding light, wherein, in the reflective region of at least one of a plurality of filters having different colors used for displaying white in reflective display, a light-reducing film which reduces an amount of at least light having a peak wavelength of a visible light transmission spectrum of the at least one of a plurality of filters is arranged, and the visible light transmission spectrum is measured using a standard light source D65.Type: GrantFiled: December 28, 2006Date of Patent: August 2, 2011Assignee: Sharp Kabushiki KaishaInventors: Akiko Ito, Kozo Nakamura, Shun Ueki, Tokio Taguchi
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Patent number: 7990498Abstract: A multi-view image display device adapted to display images different from each other using one screen of a display panel is disclosed. The multi-view image display device includes a display panel inclusive of a first color filter array having a first red sub-pixel, a first green sub-pixel and a first blue sub-pixel that constitute a first image, and a second red sub-pixel, a second green sub-pixel and a second blue sub-pixel that constitute a second image; and a color filter barrier substrate inclusive of a second color filter array that is separated from the display panel with a fixed distance and has red, green and blue color filters. The red color filter of the second color filter array corresponds to the first blue sub-pixel and the second green sub-pixel of the first color filter array. The green color filter of the second color filter array corresponds to the first red sub-pixel and the second blue sub-pixel of the first color filter array.Type: GrantFiled: June 16, 2009Date of Patent: August 2, 2011Assignee: LG Display Co., Ltd.Inventor: Hyung Ki Hong
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Publication number: 20110134354Abstract: A reflective liquid crystal display (LCD) is provided for efficiently preventing white coordinates from being yellowish. The LCD includes a substrate having red color filters, green color filters, and blue color filters. The blue color filters have an overall area smaller than that of the red color filters and the green color filters while blocking green light better than the red color filters and blocking red light better than the green color filters.Type: ApplicationFiled: January 28, 2011Publication date: June 9, 2011Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Nam-seok ROH, Soo-guy RHO
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Patent number: RE43574Abstract: A liquid crystal display is provided, which includes a liquid crystal panel assembly including a plurality of red, green, blue and white pixel areas, and a backlight unit placed at a side of the liquid crystal panel assembly. The light emitted from the backlight unit has a color coordinate (x, y) where x ranges from about 0.31 to about 0.34, and y ranges from about 0.32 to about 0.35.Type: GrantFiled: January 18, 2007Date of Patent: August 14, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Keun-Kyu Song, Jeong-Ye Choi, Nam-Seok Roh, Mun-Pyo Hong, Cheol-Woo Park