Patents by Inventor Chiu-Lien Yang

Chiu-Lien Yang 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: 20050219442
    Abstract: A color filter on array mode liquid crystal display (100) includes a first substrate (110) and a second substrate (120) disposed opposite each other and spaced apart a predetermined distance, and a liquid crystal layer (130) interposed between the first substrate and the second substrate. A thin film transistor array (111), a color filter layer (112), and a plurality of pixel electrodes (114) are formed on the first substrate. A common electrode (124) is formed on the second substrate. A first polarizer (142) and a second polarizer (144) are positioned at the first substrate and the second substrate, respectively. The first polarizer is an extraordinary type polarizer. Therefore a good contrast ratio over wide viewing angles is achieved. In addition, the polarizers are made of a modified organic dye material which exists in a liquid-crystalline phase. Therefore the liquid crystal display can be applied in high temperature environments.
    Type: Application
    Filed: December 31, 2004
    Publication date: October 6, 2005
    Inventors: Chiu-Lien Yang, Sheng-Shiou Yeh, Jia-Pang Pang
  • Publication number: 20050212999
    Abstract: A reflective type IPS LCD includes a transparent upper substrate (100) and a lower substrate (200), and liquid crystal molecules (300) interposed between the substrates. A reflection layer (250) is disposed on the lower substrate. A plurality of gate lines (170) and a plurality of data lines (180) are formed on the upper substrate, thereby defining a plurality of pixel regions arranged in a matrix. Each pixel region includes pixel electrodes (210) and common electrodes (220). The pixel electrodes and the common electrodes have a bent configuration, and are spaced apart from each other. Therefore the electric field generated by them is along two directions, and the LCD exhibits a two-domain display effect. When viewing the LCD display from any oblique angle, the color shifts generated by the two domains counteract, and thus the overall color shift of the display is small.
    Type: Application
    Filed: December 31, 2004
    Publication date: September 29, 2005
    Inventors: Chiu-Lien Yang, Jia-Pang Pang, Chueh-Ju Chen
  • Publication number: 20050213013
    Abstract: An in plane switching liquid crystal display (2) includes a first substrate (27), a second substrate (37) and a liquid crystal layer (23) having a plurality of liquid crystal molecules. A number of pixel electrodes (25) and common electrodes (24) are formed on the first substrate, and each of the pixel electrodes and common electrodes include at least two bend portions (241, 242, 243). Each bend portion has a first side and a second side. An original alignment direction of the liquid crystal molecules form at least two different angles with the sides of the bend portions of the common and pixel electrodes. When a voltage is applied to the pixel electrodes and the common electrodes, the liquid crystal molecules are aligned along at least three different directions. Therefore, the IPS-LCD can have uniform viewing performance at different viewing angles.
    Type: Application
    Filed: March 28, 2005
    Publication date: September 29, 2005
    Inventors: Chueh-Ju Chen, Chiu-Lien Yang
  • Publication number: 20050206826
    Abstract: An IPS liquid crystal display (200) of a preferred embodiment of the present invention includes a first substrate (201), a second substrate (202), and liquid crystal molecules interposed therebetween. A plurality of gate lines (211) and data lines (212) are formed at the first substrate, thereby defining a plurality of pixel regions. A pixel electrode (233), a common electrode (243) and a TFT (220) are provided in each pixel region, the pixel electrode and the common electrode having a same curved shape. Because the pixel and common electrodes of have a same curved shape with smooth bends, when a voltage is applied, disclination of the liquid crystal molecules does not occur, and the contrast ratio of the IPS LCD is unimpaired. Furthermore, the electric field generated by them is a smooth continuum of multiple domains, and the IPS LCD provides equally fine visual performance at various different viewing angles.
    Type: Application
    Filed: March 21, 2005
    Publication date: September 22, 2005
    Inventors: Chiu-Lien Yang, Jia-Pang Pang
  • Publication number: 20050190319
    Abstract: A liquid crystal display device (100) includes an upper substrate (12), a lower substrate (11), and a liquid crystal layer (130) between the upper substrate and the lower substrate. The upper substrate includes an upper polarizer (143) and a color filter layer (127), the upper polarizer being an extraordinary type polarizer. The lower substrate includes a reflective film (119). A multiplicity of pixel electrodes (113) and common electrodes (111) are positioned at the lower substrate, for applying a voltage to the liquid crystal layer. The display device has a wide viewing angle, can work at high temperatures, and is relatively thin and compact. Further, the color filter layer is positioned above the upper polarizer. Optical beams reach the color filter layer after passing back through the liquid crystal layer and the upper polarizer. This reduces or eliminates color filter de-polarizing, and yields a high contrast ratio over wide viewing angles.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 1, 2005
    Inventors: Chiu-Lien Yang, Chueh-Ju Chen, Jia-Pang Pang
  • Publication number: 20050190320
    Abstract: A liquid crystal display device (100) includes an upper substrate (12), a lower substrate (11), and a liquid crystal layer (130) interposed between the upper substrate and the lower substrate. An upper polarizer (143) and a lower polarizer (141) are positioned at the upper and lower substrates respectively, with at least one of the polarizers being an extraordinary type polarizer. A multiplicity of pixel electrodes (113) and common electrodes (111) are positioned at either the upper substrate or the lower substrate, for applying a voltage to the liquid crystal layer. The display device has a wide viewing angle, can work at high temperatures, and is relatively thin and compact.
    Type: Application
    Filed: February 25, 2005
    Publication date: September 1, 2005
    Inventor: Chiu-Lien Yang
  • Publication number: 20050190324
    Abstract: A liquid crystal display device (10) includes an upper substrate (12), a lower substrate (14) and a liquid crystal layer (16) interposed between the upper substrate and the lower substrate. A plurality of pixel regions, each pixel region comprising a pixel electrode and a common electrode (148a, 148b), for applying a voltage to the liquid crystal layer. Each pixel region includes a reflection region and a transmission region; and all the pixel and common electrodes are positioned at either the upper substrate or the lower substrate. The display working both in reflection mode and transmission mode has a wide view angle.
    Type: Application
    Filed: December 31, 2004
    Publication date: September 1, 2005
    Inventor: Chiu-Lien Yang
  • Publication number: 20050179841
    Abstract: A transmissive and reflective mode fringe field switching liquid crystal display (100) includes a backlight module for providing illumination, and a first substrate (110) and a second substrate (120) disposed opposite each other and spaced apart a predetermined distance. A liquid crystal layer (130) is interposed between the first and second substrates. A plurality of pixel electrodes (113) and a common electrode (111) are formed at the first substrate. The pixel electrodes are reflection electrodes defining a reflective display region of the liquid crystal display. Two polarizers (143, 141) are attached at the first and second substrates, respectively. At least one of the polarizers is disposed at an inner side of the corresponding substrate, and is thus protected by the substrate from damage by external factors. In certain embodiments, a color filter is disposed above both the polarizers. Therefore the liquid crystal display can eliminate any de-polarizing effects of the color filter.
    Type: Application
    Filed: February 14, 2005
    Publication date: August 18, 2005
    Inventor: Chiu-Lien Yang
  • Publication number: 20050157230
    Abstract: A transflective liquid crystal display (TR-LCD) (2) includes a first substrate (22) and a second substrate (29) disposed opposite each other and spaced apart a predetermined distance. A liquid crystal layer (200) is interposed between the first substrate and the second substrate. A color filter layer (20), a common electrode (28), a first polarizer (24) and a first alignment film (26) are positioned on an inner surface of the first substrate. A transflective layer (21), a second polarizer (27) and a second alignment film (25) are positioned on an inner surface of the second substrate. The second polarizer is an extraordinary type polarizer. The polarizers are made of a modified organic dye material which exists in a liquid-crystalline phase, thereby enabling the TR-LCD to work in temperatures up to 200 degrees Centigrade.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 21, 2005
    Inventors: Chiu-Lien Yang, Jia-Pang Pang
  • Publication number: 20050157231
    Abstract: A transflective mode liquid crystal display (2) includes a first substrate (211) and a second substrate (210), a liquid crystal layer (230) interposed between the first substrate and the second substrate, a plurality of pixel electrodes (213) and a plurality of counter electrodes (212) formed on the first substrate, a color filter (250) disposed on an inner surface of the second substrate, and a transflective element (271) disposed on the first substrate. The color filter has a color resin layer, which comprises a transmission section and a reflection section. Brightness and color saturation of light beams emitted from the transmission section are substantially the same as those of light beams emitted from the reflection section. Therefore, the transflective mode liquid crystal display has improved color and brightness characteristics.
    Type: Application
    Filed: December 30, 2004
    Publication date: July 21, 2005
    Inventors: Chiu-Lien Yang, Chueh-Ju Chen
  • Publication number: 20050140905
    Abstract: A liquid crystal display device (10) includes an upper substrate (12), a lower substrate (14), and a liquid crystal layer (16) interposed between the upper substrate and the lower substrate. An upper polarizer (126) and a lower polarizer (146) are positioned at the upper and lower substrates respectively, with at least one of the polarizers being an extraordinary type polarizer. Each of pixel regions includes a pixel electrode (148a) and a common electrode (148b), for applying a voltage to the liquid crystal layer. Each pixel region defines a reflection region and a transmission region. All the pixel and common electrodes are positioned at the lower substrate. The display device works both in a reflection mode and a transmission mode, has a wide viewing angle, can work at high temperatures, and is relatively thin and compact.
    Type: Application
    Filed: December 30, 2004
    Publication date: June 30, 2005
    Inventor: Chiu-Lien Yang
  • Publication number: 20050140901
    Abstract: A fringe field switching liquid crystal display (100) includes a first substrate (110) and a second substrate (120) disposed opposite each other and spaced apart a predetermined distance. A liquid crystal layer (130) is interposed between the first and second substrates. A plurality of pixel electrodes (113) is formed at the first substrate, and a counter electrode (111) is formed between the first substrate and the pixel electrodes. The pixel electrodes are parallel to each other, and the counter electrode is overlapped partially by the pixel electrodes. Two polarizers (143, 141) are attached at the first substrate and the second substrate, respectively. At least one of the two polarizers is an extraordinary type polarizer. Therefore a good contrast ratio over large viewing angles is achieved by suppressing light leakage. The positioning of a color filter (127) reduces or eliminates the adverse effects of color filter de-polarizing.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 30, 2005
    Inventors: Chiu-Lien Yang, Jia-Pang Pang
  • Publication number: 20050140902
    Abstract: An in plane switching liquid crystal display (2) includes a first substrate (220) and a second substrate (210) disposed opposite each other and spaced apart a predetermined distance. A liquid crystal layer is interposed between the first substrate and the second substrate, the liquid crystal layer containing a plurality of liquid crystal molecules (230). A plurality of pixel electrodes (213) and a plurality of counter electrodes (211) are formed on the first substrate in parallel alternating fashion. Two polarizers (240, 241) are disposed on the first substrate and the second substrate, respectively. A transflector (217) capable of transmitting and reflecting light beams is disposed on the first substrate. The in plane switching liquid crystal display can thus utilize ambient light beams as well as light beams provided by a backlight, so that the in plane switching liquid crystal display has low power consumption.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 30, 2005
    Inventors: Chiu-Lien Yang, Chueh-Ju Chen, Jia-Pang Pang
  • Publication number: 20050128414
    Abstract: A fringe field switching liquid crystal display (100) includes a first substrate (101) and a second substrate (110) disposed opposite each other and spaced apart a predetermined distance. A liquid crystal layer (120) is interposed between the first substrate and the second substrate. A plurality of pixel electrodes (104) is formed on the first substrate, the pixel electrodes being parallel to each other. A counter electrode (102) is formed between the first substrate and the pixel electrodes, the counter electrode being overlapped partially by the pixel electrodes. A transparent insulating layer (103) is disposed between the counter electrode and the pixel electrodes. The pixel electrodes are used to reflect light beams. The fringe field switching liquid crystal display can thus utilize ambient reflected light as well as light provided by a backlight, so that the fringe field switching liquid crystal display has low power consumption.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 16, 2005
    Inventor: Chiu-Lien Yang
  • Publication number: 20050128389
    Abstract: A liquid crystal display (2) includes: a first substrate (20); a second substrate (22); a liquid crystal layer (21) between the first substrate and the second substrate; and a plurality of pixel regions each defined by respective pixel electrodes (224) and a common electrode (222), for application of a voltage to the liquid crystal layer and formation of a fringe electric field at each pixel region. Each pixel region includes a transmissive region (R) and a reflective region (T). A thickness of the liquid crystal layer in the transmissive region is greater than a thickness of the liquid crystal layer in the reflective region.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 16, 2005
    Inventor: Chiu-Lien Yang
  • Publication number: 20050128390
    Abstract: A liquid crystal display (3) includes: a first substrate (30); a second substrate (32); a liquid crystal layer (31) interposed between the substrates; and a plurality of pixel regions each defined by respective pixel electrodes (324) and a common electrode (350), for application of a voltage to the liquid crystal layer and formation of a fringe electric field at each pixel region. Each pixel region includes a transmissive region and a reflective region. The liquid crystal display can effectively use light beams from the outside environment and from a backlight module. Therefore the liquid crystal display can be used not only in bright conditions, but also in dark conditions.
    Type: Application
    Filed: November 24, 2004
    Publication date: June 16, 2005
    Inventor: Chiu-Lien Yang
  • Publication number: 20050105015
    Abstract: A liquid crystal display (2) has a first substrate (21), a second substrate (22), and liquid crystal molecules (26) interposed between the substrates. Curved first slits (211) and curved second slits (221) are defined at insides of the substrates respectively. When an electric field is applied between the substrates, the liquid crystal molecules are inclined to be oriented parallel to the substrates. In addition, the curved first slits and the curved second slits affect the orientations of the liquid crystal molecules, such that the liquid crystal molecules are directed to incline in various directions in smooth continuums. The visual effect of the continuous domain vertical alignment liquid crystal display is the sum of multiple smooth continuous domains. Thus the continuous domain vertical alignment liquid crystal display provides a more even display performance at various different viewing angles.
    Type: Application
    Filed: November 4, 2004
    Publication date: May 19, 2005
    Inventors: Chueh-Ju Chen, Jia-Pang Pang, Chiu-Lien Yang
  • Publication number: 20050083476
    Abstract: A method for manufacturing an LCD panel includes the steps of: applying a sealing member on a first substrate to define a display area substantially enclosed by the sealing member, the sealing member containing a plurality of spacers mixed therein; applying at least one drop of a liquid crystal material to the display area of the first substrate; assembling the first substrate and a second substrate in a vacuum chamber; and curing the sealing member to integrate the substrates and thereby form the LCD panel. In this method, there is no need to spray spacers into the display area of the LCD panel. Therefore the process is simplified. The cell gap of the LCD panel is completely determined by the quantity of the liquid crystal material. The LCD panel has a uniform cell gap so as to ensure that the LCD panel provides high optical performance.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 21, 2005
    Inventors: Chiu-Lien Yang, Jia-Pang Pang
  • Publication number: 20050083468
    Abstract: A multi-domain IPS (in-plane switching) liquid crystal display (20) includes a first substrate (201), a second substrate (202), liquid crystal molecules (203) filled between the first and second substrates, and gate lines (211) and data lines (212) formed on the first substrate. The gate lines and data lines define pixel regions arranged in a matrix. Each pixel region includes pixel electrodes (233), common electrodes (243), and a TFT (thin film transistor) (220). The pixel electrodes and the common electrodes have a same curved shape, and are uniformly spaced apart from each other. Therefore the electric field generated by them is a smooth continuum of multiple domains, and the visual performance at various different viewing angles is equally good. Because the pixel and common electrodes do not have sharp bends, disclination is avoided. Therefore the IPS liquid crystal display has a high contrast ratio.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 21, 2005
    Inventors: Chueh-Ju Chen, Jia-Pang Pang, Chiu-Lien Yang
  • Publication number: 20050078251
    Abstract: A continuous domain vertical alignment liquid crystal display (2) has a first substrate (21), a second substrate (22), and liquid crystal molecules (26) interposed between the substrates. A plurality of curved first protrusions (211) and a plurality of curved second protrusions (221) are disposed at insides of the substrates respectively. When an electric field is applied between the substrates, the liquid crystal molecules tend to be oriented parallel to the substrates. In addition, the curved protrusions affect the orientations of the liquid crystal molecules, such that the liquid crystal molecules are directed to incline in various directions in smooth continuums. The visual effect of the continuous domain vertical alignment liquid crystal display is the sum of multiple smooth continuous domains. Thus the continuous domain vertical alignment liquid crystal display provides a more even display performance at various different viewing angles.
    Type: Application
    Filed: October 8, 2004
    Publication date: April 14, 2005
    Inventors: Chueh-Ju Chen, Jia-Pang Pang, Chiu-Lien Yang