Patents by Inventor Chen-Hsien Liao
Chen-Hsien Liao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20100188612Abstract: A high color expression display device and a method for manufacturing the same are provided. The display device includes a backlight module and a display panel for receiving light from the backlight module. The display panel has a color filter layer which consists of a plurality of color resists above the backlight module. Lights from the backlight module pass through the color resists and out of the display panel to form an output light. A NTSC saturation of the output light may be greater or smaller than 60%, and a CIE standard illuminant C test result of the color resists may correspondingly fall into different predetermined scopes to prevent color shift and maintain brightness of the display device.Type: ApplicationFiled: January 21, 2010Publication date: July 29, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Chun-Chieh WANG, Chung-Ting CHEN, Chen-Hsien LIAO, Chien-Chih CHEN
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Publication number: 20100182532Abstract: A backlight module and a liquid crystal display are disclosed. In the backlight module having a reflector base, a phosphor layer is disposed on the reflector base, and a plurality of blue light emitting diode (LEDs) are disposed above the reflector base and the phosphor layer for emitting a first light beam. An optical film is disposed above the reflector base, the phosphor layer and the blue LEDs for allowing P-polarized light of the first light beam to pass therethrough and reflecting S-polarized light of the first light beam to the phosphor layer so as to excite the phosphor layer to generate a second light beam of which the wavelengths are different from those of the first light beam. After being reflected to the optical film by the reflector base, the second light beam transmits through the optical film, and mixes with the first light beam to generate white light.Type: ApplicationFiled: May 29, 2009Publication date: July 22, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Chun-Liang Lin, Ya-Ling Hsu, Ying-Li Wang, Chun-Chieh Wang, Chen-Hsien Liao
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Patent number: 7755716Abstract: A liquid crystal display (LCD) including a backlight module and a liquid crystal display panel is provided. The backlight module has at least one white light source. BL1 and BL2 respectively represent relative maximum brightness peaks of an emission spectrum of the backlight module at a wavelength between 500 nm and 525 nm and between 530 nm and 560 nm, in which BL1/BL2?0.32. The liquid crystal display panel is disposed above the backlight module, and has two substrates and a liquid crystal layer sandwiched therebetween. One of the two substrates has a red filter layer, a green filter layer, and a blue filter layer, in which transmittances of the red filter layer and the green filter layer at wavelength of approximately 590 nm are both smaller than about 45%.Type: GrantFiled: March 12, 2008Date of Patent: July 13, 2010Assignee: Au Optronics CorporationInventors: Chun-Chieh Wang, Yu-Hui Chou, Hsueh-Ying Huang, Chen-Hsien Liao
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Publication number: 20100141871Abstract: A liquid crystal display is disclosed. The liquid crystal display includes a first backlight source, a second backlight source and a liquid crystal panel. The first backlight source provides magenta backlight and the second backlight source provides green backlight. The first and second backlight sources are alternatively driven periodically to provide backlight for illustrating images. The liquid crystal panel comprises a liquid crystal layer and a color filter. The liquid crystal molecules of the liquid crystal layer are controlled for adjusting the transmittance of the backlight provided by the first and second backlight sources. The color filter includes red pixel areas, transparent pixel areas and blue pixel areas for performing color filtering operations on the backlight penetrating through the liquid crystal layer.Type: ApplicationFiled: February 8, 2009Publication date: June 10, 2010Inventors: Ya-Ling Hsu, Chun-Liang Lin, Chien-Kai Chen, Chen-Hsien Liao
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Patent number: 7728914Abstract: A display panel for amplifying light reflection intensity. The display includes a substrate, at least one protrusion on one face of the substrate, and a light reflective layer deposited on the at least one protrusion. The at least one protrusion amplifies light reflection intensity when light is reflect off the light reflective layer.Type: GrantFiled: January 28, 2004Date of Patent: June 1, 2010Assignee: Au Optronics CorporationInventors: Hsu-Ping Tseng, Chen-Hsien Liao
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Publication number: 20100110690Abstract: A method for modifying color resists of color filter includes the steps of: providing a white light-emitting diode (WLED) emitting light having wavelength of ?i and having an emission spectrum BL(?i); providing a color filter comprising a plurality of red, green and blue color resists and having a transmission spectrum CF(?i); modifying compositions or concentrations of pigments of the red color resists to increase transmission rate of the wavelength ?i ranging between 580 nm and 600 nm for the red color resists; and modifying compositions or concentrations of pigments of the green color resists to increase transmission rate of the wavelength ?i ranging between 570 nm and 590 nm for the green color resists. A display is also disclosed herein.Type: ApplicationFiled: February 23, 2009Publication date: May 6, 2010Applicant: AU OPTRONICS CORPORATIONInventors: Ya-Ling Hsu, Chun-Liang Lin, Chun-Chieh Wang, Chen-Hsien Liao
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Patent number: 7663608Abstract: A handwriting input apparatus comprises a position-encoding layer and a pen. The position-encoding layer comprises a plurality of position-encoding pattern. The position-encoding layer is transparent to visible light and is reflective to light of predetermined wavelengths. Each position-encoding pattern represents a specific code. The pen has a projector and a camera at one end. The projector is adapted to generate a light beam of the predetermined wavelengths toward the position-encoding layer. The camera is adapted to capture images of the plurality of position-encoding pattern.Type: GrantFiled: November 16, 2005Date of Patent: February 16, 2010Assignee: AU Optronics Corp.Inventors: Shou-Ling Sui, Chen-Hsien Liao
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Patent number: 7639323Abstract: A liquid crystal display (LCD) including a backlight module and a liquid crystal display panel is provided. The backlight module has at least one white light source. BL1 and BL2 respectively represent maximum brightness peaks of a normalized emission spectrum of the backlight module at a wavelength between 500 nm to 520 nm and between 445 nm to 465 nm, in which 0.91?BL1/BL2?0.99. The liquid crystal display panel is disposed above the backlight module, and has a plurality of substrates and one liquid crystal layer located between them. One of substrates has a red filter layer, a green filter layer, and a blue filter layer, and the coordinate values of the red filter layer, the green filter layer, and the blue filter layer in CIE 1931 chromaticity diagram satisfy predetermined relation expressions.Type: GrantFiled: March 3, 2008Date of Patent: December 29, 2009Assignee: Au Optronics CorporationInventors: Chun-Chieh Wang, Yu-Hui Chou, Ya-Ling Hsu, Chun-Liang Lin, Chen-Hsien Liao
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Publication number: 20090316078Abstract: A color filter substrate includes a plurality of green photoresists. A ratio of M1 to M2 is less than or equal to 0.04, and D is less than or equal to 90 nm, wherein M1 represents a maximum value of G(?)×CMF_×(?) at a wavelength between 450 nm and 510 nm, M2 represents a maximum value of G(?)×CMF_×(?) at a wavelength between 550 nm and 590 nm, CMF_×(?) represents a Commission Internationale de L'Eclairage (CIE) color matching function, G(?) represents a transmittance spectrum of each of the green photoresists and D represents a full width at half maximum of a peak of G(?). The color filter substrate can promote color saturation of a liquid crystal display. Furthermore, a liquid crystal display using the color filter substrate is provided.Type: ApplicationFiled: October 30, 2008Publication date: December 24, 2009Inventors: Ya-Ling HSU, Chien-Kai Chen, Chun-Liang Lin, Chen-Hsien Liao
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Publication number: 20090291373Abstract: In a green photoresist for a color filter substrate, GY×Gy is greater than 33 when the green photoresist is tested by a standard C light source and Gy is greater than or equal to 0.6. A light beam from the standard C light source after passing through the green photoresist corresponds to a y coordinate in a CIE 1931 chromaticity diagram and Gy represents the y coordinate. GY represents light transmittance of the green photoresist for the light beam from the standard C light source. The green photoresist improves the light transmittance. Further, a color filter substrate using the green photoresist is provided.Type: ApplicationFiled: September 15, 2008Publication date: November 26, 2009Inventors: Chien-Kai CHEN, Ya-Ling Hsu, Chun-Liang Lin, Chen-Hsien Liao
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Publication number: 20090290099Abstract: A display module is disclosed. The display module comprises a liquid crystal module and a backlight source having a spectrum, wherein the spectrum has a plurality of peaks of light intensity. The liquid crystal module comprises a color filter having a plurality of transmittances. There are color ratios related to the transmittances and the peaks, so that a backlight source emits a light through the color filter and a color image generated by the light has a predetermined brightness and a predetermined saturation according to the color ratios. More particularly, the predetermined brightness can be defined by the brightness as the color temperature of the color image maintained at 10000K. The predetermined intensity meets the standard of the National Television Standard Committee (NTSC).Type: ApplicationFiled: September 23, 2008Publication date: November 26, 2009Applicant: AU OPTRONICS CORP.Inventors: Chun-Liang Lin, Chun-Chieh Wang, Ya-Ling Hsu, Chen-Hsien Liao
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Patent number: 7619726Abstract: A color filter with low color shift is defined by a light leakage spectrum in the dark state. The color filter is disposed between two polarizing plates so as to measure a first spectrum of dark state a(?), wherein the polarizing directions of the polarizers are orthogonal to each other. A second spectrum of dark state b(?) while the color filter is removed, and then a ratio spectrum of light leakage intensity I(?)=(a(?)/b(?)) is determined. A maximum value P1 in the ratio spectrum of light leakage intensity is determined in a wavelength region in which the ratio spectrum of light leakage intensity of green photoresist overlaps that of a blue photoresist. A maximum value P2 in the ratio spectrum of light leakage intensity is determined in a wavelength region in which the ratio spectrum of light leakage intensity of red photoresist locates.Type: GrantFiled: July 25, 2007Date of Patent: November 17, 2009Assignee: AU Optronics Corp.Inventors: Shiao-Wen Wang, Sheng-Wen Cheng, Chen-Hsien Liao
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Publication number: 20090251639Abstract: An LCD includes a backlight module and an LCD panel. The optical spectrum of the backlight module has a maximum luminance peak less than the wavelength of 470 nm and a maximum luminance peak between the wavelengths of 520 nm and 600 nm. The LCD panel is disposed over the backlight module and has a red filter layer, a green filter layer and a blue filter layer. The green filter layer is subject to the following condition: under illumination of a CIE 1931 standard light source C, the x coordinate and the y coordinate of the green filter layer on a CE 1931 chromaticity coordinate diagram are represented by Gx and Gy, wherein Gx?0.26 and Gy?0.59.Type: ApplicationFiled: May 29, 2008Publication date: October 8, 2009Applicant: Au Optronics CorporationInventors: Ya-Ling Hsu, Chun-Liang Lin, Chen-Hsien Liao
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Publication number: 20090251640Abstract: A liquid crystal display (LCD) including a backlight module and an LCD panel is provided. The backlight module has at least one white light source. A light-emitting spectrum of the backlight module has a relative maximum brightness peak value between wavelengths of 430 nm and 470 nm and between wavelengths of 520 nm and 620 nm respectively. The LCD panel disposed above the backlight module includes a plurality of substrates and a liquid crystal layer located there-between. One of the substrates has a red filter layer, a green filter layer, and a blue filter layer. Specially, Rx and Ry respectively represent an x coordinate and a y coordinate of the red filter layer in a CIE 1931 chromaticity diagram under a CIE standard light source C, where Rx?0.65 and Ry?0.32.Type: ApplicationFiled: July 22, 2008Publication date: October 8, 2009Applicant: AU OPTRONICS CORPORATIONInventors: Ya-Ling Hsu, Chun-Chieh Wang, Chun-Liang Lin, Chen-Hsien Liao
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Publication number: 20090147184Abstract: A liquid crystal display (LCD) including a backlight module and a liquid crystal display panel is provided. The backlight module has at least one white light source. BL1 and BL2 respectively represent relative maximum brightness peaks of an emission spectrum of the backlight module at a wavelength between 500 nm and 525 nm and between 530 nm and 560 nm, in which BL1/BL2?0.32. The liquid crystal display panel is disposed above the backlight module, and has two substrates and a liquid crystal layer sandwiched therebetween. One of the two substrates has a red filter layer, a green filter layer, and a blue filter layer, in which transmittances of the red filter layer and the green filter layer at wavelength of approximately 590 nm are both smaller than about 45%.Type: ApplicationFiled: March 12, 2008Publication date: June 11, 2009Applicant: AU OPTRONICS CORPORATIONInventors: Chun-Chieh Wang, Yu-Hui Chou, Hsueh-Ying Huang, Chen-Hsien Liao
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Publication number: 20090135337Abstract: A liquid crystal display (LCD) including a backlight module and a LCD panel is provided. The backlight module has at least one white light source. BL1 and BL2 respectively represent a relative maximum brightness peak of an emission spectrum of the backlight module at a wavelength from 445 nm to 448 nm and from 510 nm to 520 nm. The LCD panel including two substrates and a liquid crystal layer sandwiched between the two substrates is disposed above the backlight module. One of the two substrates has a red filter layer, a green filter and a blue filter layer. Specially, Gx represents an x coordinate in a CIE 1931 chromaticity diagram when the green filter layer uses a CIE standard light source C, and Gx is larger than or equal to 0.286 (Gx?20.286).Type: ApplicationFiled: March 12, 2008Publication date: May 28, 2009Applicant: AU OPTRONICS CORPORATIONInventors: Chun-Chieh Wang, Chen-Hsien Liao
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Publication number: 20090135338Abstract: An liquid crystal display including a backlight module and an LCD panel is disclosed. The backlight module has a white light source, and the normalized optical spectrum of the backlight module is BL(?) The LCD panel includes a red color filter layer, a green color filter layer and a blue color filter layer. The green color filter layer and the backlight module are subject to the following relationship: E=C/D and E?0.8, wherein A is defined as the wavelength corresponding to the maximum peak value of CFGreen(?)×BL(?)×x(?); B is defined as the wavelength corresponding to the maximum peak value of CFGreen(?)×BL(?)×y(?); C is defined as the integral on CFGreen(?)×BL(?)×x(?) over the interval between A and B; D is defined as the integral on CFGreen(?)×BL(?)×y(?) over the interval larger than B, CFGreen(?) is the transmission spectrum of the green color filter layer; and x(?) and y(?) are color matching functions.Type: ApplicationFiled: March 7, 2008Publication date: May 28, 2009Applicant: AU OPTRONICS CORPORATIONInventors: Chun-Chieh Wang, Yu-Hui Chou, Chen-Hsien Liao
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Publication number: 20090073354Abstract: A color filter and an LCD including the color filter are provided. The color filter includes a substrate with a first side and a second side opposite to said first side, a blue color resist formed on the first side, and a transparent conductive layer at least locally formed on the blue color resist that defines a blue light transmissive area. The first blue chromaticity coordinate of the color filter (By1) is less than or equal to about 0.08, while a standard C light source is disposed adjacent to the second side and the light with a wavelength ranging from about 380 to about 780 nm from the standard C light source passing through the blue color resist and the transparent conductive layer. Alternatively, the first blue chromaticity coordinate (By1), which is less than or equal to about 0.08, would be calculated based on the measured transmission spectrum of the blue light transmissive area in association with the spectrum of the standard C light source.Type: ApplicationFiled: April 14, 2008Publication date: March 19, 2009Applicant: AU OPTRONICS CORP.Inventors: Ya-Ling Hsu, Chun-Chieh Wang, Chen-Hsien Liao
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Publication number: 20080273816Abstract: An optical recognition device is provided. The optical recognition device includes a transparent substrate, a patterned infrared reflective film formed thereon, and an infrared anti-reflective film sheltering a gap in a recognition pattern of the patterned infrared reflective film, wherein the patterned infrared reflective film reflects the recognition pattern by reflection of infrared light and transmission of visible light. The invention also provides a display incorporating the optical recognition device.Type: ApplicationFiled: February 27, 2008Publication date: November 6, 2008Applicant: AU OPTRONICS CORP.Inventors: Pei-Yu Chen, Sheng-Wen Cheng, Chen-Hsien Liao
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Publication number: 20080266491Abstract: A liquid crystal display (LCD) including a backlight module and a liquid crystal display panel is provided. The backlight module has at least one white light source. BL1 and BL2 respectively represent maximum brightness peaks of a normalized emission spectrum of the backlight module at a wavelength between 500 nm to 520 nm and between 445 nm to 465 nm, in which 0.91?BL1/BL2?0.99. The liquid crystal display panel is disposed above the backlight module, and has a plurality of substrates and one liquid crystal layer located between them. One of substrates has a red filter layer, a green filter layer, and a blue filter layer, and the coordinate values of the red filter layer, the green filter layer, and the blue filter layer in CIE 1931 chromaticity diagram satisfy predetermined relation expressions.Type: ApplicationFiled: March 3, 2008Publication date: October 30, 2008Applicant: Au Optronics CorporationInventors: Chun-Chieh Wang, Yu-Hui Chou, Ya-Ling Hsu, Chun-Liang Lin, Chen-Hsien Liao