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).

  • Publication number: 20100188612
    Abstract: 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: Application
    Filed: January 21, 2010
    Publication date: July 29, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chun-Chieh WANG, Chung-Ting CHEN, Chen-Hsien LIAO, Chien-Chih CHEN
  • Publication number: 20100182532
    Abstract: 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: Application
    Filed: May 29, 2009
    Publication date: July 22, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chun-Liang Lin, Ya-Ling Hsu, Ying-Li Wang, Chun-Chieh Wang, Chen-Hsien Liao
  • Patent number: 7755716
    Abstract: 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: Grant
    Filed: March 12, 2008
    Date of Patent: July 13, 2010
    Assignee: Au Optronics Corporation
    Inventors: Chun-Chieh Wang, Yu-Hui Chou, Hsueh-Ying Huang, Chen-Hsien Liao
  • Publication number: 20100141871
    Abstract: 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: Application
    Filed: February 8, 2009
    Publication date: June 10, 2010
    Inventors: Ya-Ling Hsu, Chun-Liang Lin, Chien-Kai Chen, Chen-Hsien Liao
  • Patent number: 7728914
    Abstract: 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: Grant
    Filed: January 28, 2004
    Date of Patent: June 1, 2010
    Assignee: Au Optronics Corporation
    Inventors: Hsu-Ping Tseng, Chen-Hsien Liao
  • Publication number: 20100110690
    Abstract: 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: Application
    Filed: February 23, 2009
    Publication date: May 6, 2010
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Ya-Ling Hsu, Chun-Liang Lin, Chun-Chieh Wang, Chen-Hsien Liao
  • Patent number: 7663608
    Abstract: 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: Grant
    Filed: November 16, 2005
    Date of Patent: February 16, 2010
    Assignee: AU Optronics Corp.
    Inventors: Shou-Ling Sui, Chen-Hsien Liao
  • Patent number: 7639323
    Abstract: 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: Grant
    Filed: March 3, 2008
    Date of Patent: December 29, 2009
    Assignee: Au Optronics Corporation
    Inventors: Chun-Chieh Wang, Yu-Hui Chou, Ya-Ling Hsu, Chun-Liang Lin, Chen-Hsien Liao
  • Publication number: 20090316078
    Abstract: 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: Application
    Filed: October 30, 2008
    Publication date: December 24, 2009
    Inventors: Ya-Ling HSU, Chien-Kai Chen, Chun-Liang Lin, Chen-Hsien Liao
  • Publication number: 20090291373
    Abstract: 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: Application
    Filed: September 15, 2008
    Publication date: November 26, 2009
    Inventors: Chien-Kai CHEN, Ya-Ling Hsu, Chun-Liang Lin, Chen-Hsien Liao
  • Publication number: 20090290099
    Abstract: 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: Application
    Filed: September 23, 2008
    Publication date: November 26, 2009
    Applicant: AU OPTRONICS CORP.
    Inventors: Chun-Liang Lin, Chun-Chieh Wang, Ya-Ling Hsu, Chen-Hsien Liao
  • Patent number: 7619726
    Abstract: 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: Grant
    Filed: July 25, 2007
    Date of Patent: November 17, 2009
    Assignee: AU Optronics Corp.
    Inventors: Shiao-Wen Wang, Sheng-Wen Cheng, Chen-Hsien Liao
  • Publication number: 20090251639
    Abstract: 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: Application
    Filed: May 29, 2008
    Publication date: October 8, 2009
    Applicant: Au Optronics Corporation
    Inventors: Ya-Ling Hsu, Chun-Liang Lin, Chen-Hsien Liao
  • Publication number: 20090251640
    Abstract: 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: Application
    Filed: July 22, 2008
    Publication date: October 8, 2009
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Ya-Ling Hsu, Chun-Chieh Wang, Chun-Liang Lin, Chen-Hsien Liao
  • Publication number: 20090147184
    Abstract: 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: Application
    Filed: March 12, 2008
    Publication date: June 11, 2009
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chun-Chieh Wang, Yu-Hui Chou, Hsueh-Ying Huang, Chen-Hsien Liao
  • Publication number: 20090135337
    Abstract: 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: Application
    Filed: March 12, 2008
    Publication date: May 28, 2009
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chun-Chieh Wang, Chen-Hsien Liao
  • Publication number: 20090135338
    Abstract: 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: Application
    Filed: March 7, 2008
    Publication date: May 28, 2009
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Chun-Chieh Wang, Yu-Hui Chou, Chen-Hsien Liao
  • Publication number: 20090073354
    Abstract: 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: Application
    Filed: April 14, 2008
    Publication date: March 19, 2009
    Applicant: AU OPTRONICS CORP.
    Inventors: Ya-Ling Hsu, Chun-Chieh Wang, Chen-Hsien Liao
  • Publication number: 20080273816
    Abstract: 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: Application
    Filed: February 27, 2008
    Publication date: November 6, 2008
    Applicant: AU OPTRONICS CORP.
    Inventors: Pei-Yu Chen, Sheng-Wen Cheng, Chen-Hsien Liao
  • Publication number: 20080266491
    Abstract: 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: Application
    Filed: March 3, 2008
    Publication date: October 30, 2008
    Applicant: Au Optronics Corporation
    Inventors: Chun-Chieh Wang, Yu-Hui Chou, Ya-Ling Hsu, Chun-Liang Lin, Chen-Hsien Liao