Patents Assigned to TPO Display Corp.
  • Multi-resolution driver device
    Patent number: 7532190
    Abstract: A driver device for providing multi-resolution modes for a display device, a liquid crystal display panel for example, is provided in this invention. This display driver includes a pixel circuit and a gate driving circuit. The gate driving circuit is coupled to the pixel circuit via a plurality of gate lines and determines either an original gate driving signal or a target gate driving signal to be the gate drive signal in response to the gate control signal. Wherein a switch circuit is configured for switching between the original driving signal and the target gate driving signal via a plurality of switches corresponding to shift registers therein. A source driving circuit is further incorporated in this present invention to configure a multi-resolution display device, coupled to the pixel circuit via a plurality of source lines and outputs the source driving signal in response to a source control signal.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: May 12, 2009
    Assignee: TPO Displays Corp.
    Inventors: Hsiao-Yi Lin, Wei Wang, Chaung-Ming Chiu, Yu-Yun Hsu
  • Flexible printed circuit board (FPC) for liquid crystal display (LCD) module
    Patent number: 7529100
    Abstract: A flexible printed circuit board (FPC) with an extensible element for liquid crystal display (LCD) module is provided, wherein the extensible element can extend when it is forced. It can be used for different LCD modules to achieve the purpose of simplifying manufacturing process.
    Type: Grant
    Filed: August 10, 2004
    Date of Patent: May 5, 2009
    Assignee: TPO Displays Corp.
    Inventors: Meng Ju Chuang, Che-Kuei Mai
  • System for displaying image and digital-to-analog converting method
    Patent number: 7525467
    Abstract: A digital to analog converter is provided comprising a charge sharing circuit, a discharging circuit and a voltage boosting circuit. The charge sharing circuit sequentially receives first to (N?1)th bits of serial digital signals. The charge sharing circuit shares and stores charges between a first capacitor and a second capacitor according to a charging voltage, a ground voltage, a first clock signal and serial data signals. The discharging circuit discharges the charge sharing circuit according to a reset signal. After the voltage boosting circuit receive the (N?1)th digital signal, the charge boosting circuit whether to boost a first terminal and a second terminal of the second capacitor or not based on an Nth digital signal. After the voltage boosting circuit receives the Nth serial digital signal, the charge sharing circuit outputs an analog signal from the second terminal of the second capacitor.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: April 28, 2009
    Assignee: TPO Displays Corp.
    Inventors: Wei-Cheng Lin, Kai-Chieh Yang, Keiichi Sano, Fang-Hsing Wang, Ting-Yu Chang
  • DISPLAY DEVICES WITH AMBIENT LIGHT SENSING
    Publication number: 20090085485
    Abstract: A display device comprises an illumination source (12), a display modulator (10) for modulating the light provided by the illumination source and an integrated light sensor arrangement (14) to detect a light level. Light sensor signals from a plurality of light sensors are processed such that localised shielding of the ambient light at the location of one or more of the light sensors is identified. An accurate estimate of the ambient light level can then be obtained.
    Type: Application
    Filed: September 24, 2008
    Publication date: April 2, 2009
    Applicant: TPO Displays Corp.
    Inventor: Nigel David YOUNG
  • Multi-Domain Liquid Crystal Display
    Publication number: 20090079924
    Abstract: The present invention achieves the multi-domain configuration by providing an insulation film region at least one location in each pixel on one substrate of a pair of substrates of an active matrix multi-domain vertically aligned liquid crystal display for differentiating electrical potential to be applied to a certain zone of the liquid crystal from that to the liquid crystal at the other area when a voltage is applied to the liquid crystal, thereby causing different electrical potential gradients in at least two directions.
    Type: Application
    Filed: February 5, 2008
    Publication date: March 26, 2009
    Applicant: TPO Displays Corp.
    Inventors: Yasui Masaru, Masahide Inoue, Minoru Shibazaki
  • LIQUID CRYSTAL DISPLAY WITH PEEP-PREVENTING FUNCTION
    Publication number: 20090079674
    Abstract: In an active matrix LCD, different signal voltages are applied to adjacent pixels or sub-pixels. Averaged brightness of the adjacent pixels or sub-pixels displays a typical? curve while viewing right from the front, and on the other hand, displays a constant ? curve within a specified color level (signal voltage) range while viewing at a skew angle from the front. Accordingly, a true image can be seen from the front while the image becomes visibly unidentified at a skew angle from the front.
    Type: Application
    Filed: September 24, 2008
    Publication date: March 26, 2009
    Applicant: TPO Displays Corp.
    Inventors: Masahiro YOSHIGA, Minoru SHIBAZAKI
  • General film compensated reflective LCD having LC layer with middle layer satisfying a predetermined relationship between phase retardation and half residual phase depending on an external electric field
    Patent number: 7508472
    Abstract: A liquid crystal display having at least one of high contrast ratio, high reflectance, and low color dispersion is disclosed. Based on the total boundary residual retardation, the corresponding compensation film and polar conditions may be calculated. Using the compensation film and polarizer conditions, a general film compensated reflective twisted-nametic liquid crystal display (GF-RTN-LCD) may be obtained.
    Type: Grant
    Filed: December 30, 2004
    Date of Patent: March 24, 2009
    Assignee: TPO Displays Corp.
    Inventors: Xinyu Zhu, Shin-Tson Wu
  • System for displaying images and method for fabricating the same
    Patent number: 7507998
    Abstract: An exemplary embodiment of a system comprises an active matrix organic electroluminescent device, having a substrate, and a plurality of scan lines and data lines disposed on the substrate, for defining a plurality of pixel regions. Each pixel structure comprises: a switching thin film transistor, a driving thin film transistor, and a storage capacitor. The switching TFT has a light-shielding layer adapted for preventing the sunlight from being incident into the switching TFT. The driving TFT is a bottom gate thin film transistor and have advantages of precisely controlling the current provided to the organic electroluminescent diode. Further, since the storage capacitor has a multilayer structure and occupies a reduced pixel area, the aperture ratio of the pixel structure can be increased.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: March 24, 2009
    Assignee: TPO Displays Corp.
    Inventor: Chang-Ho Tseng
  • PROJECTING CAPACITIVE TOUCH SENSING DEVICE, DISPLAY PANEL, AND IMAGE DISPLAY SYSTEM
    Publication number: 20090073135
    Abstract: The present invention relates to a projecting capacitive touch sensing device, display panel, and image display system. The projecting capacitive touch sensing comprises an array of a plurality of sensing units, each sensing unit including: a first electrode made of a sensing material, at least one second electrode made of a sensing material and being disposed around the peripheral of the first electrode, at least one first sensing axis electrically connected to the first electrode, and at least one second sensing axis electrically connected to the second electrodes. The first electrode is quadrangle, while the second electrodes are triangular-shaped. The first electrode and the plurality of second electrodes are arranged to form a rectangular, and a non-sensing area is defined between the first electrode and the second electrodes.
    Type: Application
    Filed: September 9, 2008
    Publication date: March 19, 2009
    Applicant: TPO Displays Corp.
    Inventors: WEI CHENG LIN, Kai Chieh Yang, Fu Yuan Hsueh, Ting Kuo Chang
  • DISPLAY PANEL AND ELECTRONIC SYSTEM UTILIZING THE SAME
    Publication number: 20090073089
    Abstract: A display panel including a pixel unit and a scan line. The pixel unit includes a first sub-pixel, a second sub-pixel, and a third sub-pixel. The scan line is coupled to the first, the second, and the third sub-pixels and comprises a first side and a second side. The first sub-pixel is disposed on the first side and the second sub-pixel is disposed on the second side.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 19, 2009
    Applicant: TPO Displays Corp.
    Inventors: Chuan-Yi CHAN, Du-Zen PENG
  • Level shifter, interface driver circuit and image display system
    Publication number: 20090073148
    Abstract: The present invention relates to a level shifter receiving a control signal to produce a first and a second driving voltage, comprising a first and a second capacitor, and a first and a second self-bias circuit for respectively providing a supply path to couple to a direct current bias voltage source, and charging the first and the second capacitor, wherein the first and the second capacitor can boost the control signal to produce the first and the second driving voltage respectively. The present invention also provides an image display system, comprising an interface driver circuit that uses the first and the second driving voltage produced by the level shifter to generate a high-level voltage output signal.
    Type: Application
    Filed: July 2, 2008
    Publication date: March 19, 2009
    Applicant: TPO Displays Corp.
    Inventor: Fu-Yuan Hsueh
  • DISPLAY COMPRISING A PLURALITY OF PIXELS AND A DEVICE COMPRISING SUCH A DISPLAY
    Publication number: 20090073099
    Abstract: A liquid crystal display is provided to include a display panel with a plurality of pixels, which are arranged in rows and columns in a matrix form. Each pixel has a plurality of sub-pixels of first, second, third and fourth sub-pixel types, respectively, corresponding to red, green, blue and white (RGBW) colors and interleaved together. Each succession of first, second, and third sub-pixels form a first sub-pixel group, and a subsequent fourth sub-pixel forms a second sub-pixel group. The sub-pixels are arranged such that the second type of the sub-pixels and the fourth type of the sub-pixels are in a same column. In each row, the sub-pixel in a rightmost column is of the same sub-pixel type as the sub-pixel in a leftmost column of that row.
    Type: Application
    Filed: September 14, 2007
    Publication date: March 19, 2009
    Applicant: TPO Displays Corp.
    Inventors: David Yeates, Pavel Novoselov, Pieter Goldhborn
  • Manufacturing method of reflective layer of display device, reflective LCD device and transflective LCD device
    Patent number: 7505097
    Abstract: A reflective and a transflective liquid crystal display device and a manufacturing method thereof are provided. The manufacturing method includes the following steps. First, a substrate structure of a reflective or a transflective liquid crystal display device is provided. Next, a reflection layer is formed over the substrate structure, a protection layer is formed over the reflection layer, and a photoresist layer is formed over the protection layer. Then, the photoresist layer is patterned to form a patterned photoresist layer, the protection layer is patterned to form a patterned protection layer, and the reflection layer is patterned to form a patterned reflection layer. Thereafter, the patterned photoresist layer is removed.
    Type: Grant
    Filed: April 12, 2005
    Date of Patent: March 17, 2009
    Assignee: TPO Displays Corp.
    Inventors: Hung-Yi Luo, Min-Chin Su, Shih-Han Chen, Been-Chih Liou, Jr-Hong Chen
  • Display panel, and display device and electronic device using thereof
    Patent number: 7505095
    Abstract: A display panel includes a first substrate, a second a second substrate a second a second substrate parallel and opposite to the first substrate, a liquid crystal molecules disposed between the first substrate and the second substrate, a first and a second polarizers disposed over the first and the second substrates respectively. The first surface of the first substrate close to the liquid crystal molecules and a second surface of the second substrate close to the liquid crystal molecules includes a first alignment surface and a second alignment surface, wherein an angle between the alignment directions of the first and the second alignment surfaces is in a range of about 90°. The angle between a direction of the absorption axis of the first polarizer/the second polarizer and the alignment direction of the first alignment surface/the second alignment surface is in a range of about 45° respectively.
    Type: Grant
    Filed: August 8, 2005
    Date of Patent: March 17, 2009
    Assignee: TPO Displays Corp.
    Inventor: Chi-Huang Lin
  • METHOD OF DRIVING AN ACTIVE MATRIX LIQUID CRYSTAL DISPLAY
    Publication number: 20090058782
    Abstract: A method for driving an active matrix liquid crystal display (AMLCD) to perform partial display area displaying on a portion of a display area thereof is disclosed. The method includes: using a common electrode voltage for line alternate-driving in a first write period of a partial display area, and for frame alternate-driving in at least a portion of a second write period outside of the partial display area; and in a frame alternate-driving period of the second write period outside of the partial display area, controlling the common electrode voltage to adjust one of two voltage durations of the common electrode voltage which are respectively before and after the first write period of the partial display area and in which the common electrode voltage are of the same polarity, to make the two voltage durations have equal lengths.
    Type: Application
    Filed: August 21, 2008
    Publication date: March 5, 2009
    Applicant: TPO Displays Corp.
    Inventors: Hidetoshi WATANABE, Yasuyuki Onda, Hideto Maniwa
  • Systems for displaying images having micro-reflective transmission liquid crystal display with particular storage capacitor arrangement
    Patent number: 7499116
    Abstract: Systems for displaying images including a micro-reflective transmission liquid crystal display with improved reflection and reflective contrast ratio (CR). The micro-reflective transmission liquid crystal display comprises a first substrate, a second substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. The first substrate comprises an array of three primary color sub-pixel regions and a white sub-pixel region. Each pixel region has a transistor and a storage capacitor with respect to the transistor. The storage capacitor with respect to the storage capacitor of the white sub-pixel region is disposed within the area of one of the three primary color sub-pixel regions.
    Type: Grant
    Filed: April 11, 2006
    Date of Patent: March 3, 2009
    Assignee: TPO Displays Corp.
    Inventors: Chia-Yi Tsai, Mu-Chia Lee, Shih-Chang Chang
  • Shift register and shift register set using the same
    Patent number: 7499517
    Abstract: A shift register and a shift register are provided. The shift register comprises the switch circuit, the latch circuit, and the inverter circuit 170. The shift register set, by alternately-serially connecting two types of shift registers, can receive two clock signals and an initial pulse signal to control the output waveform. The output of the present stage shift register can be used to control the turn-on time of the nest stage shift register. Further, by changing the circuit driving signal from the dynamic signal to the static signal, the circuit can operate only when the signal is “0” or “1” without being affected by the signal rising time and the falling time so that the circuit can operate in a more stable status.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: March 3, 2009
    Assignee: TPO Displays Corp.
    Inventors: Shih-Chin Lin, Hsiao-Yi Lin
  • N-channel TFT and OLED display apparatus and electronic device using the same
    Patent number: 7495258
    Abstract: An N-channel TFT and OLED display apparatus and electronic device using the same are disclosed. The N-channel TFT comprises a a substrate; an active layer on the substrate, wherein the active layer comprises an N type source region and an N type drain region; a gate dielectric layer on the active layer; and a gate region on the gate dielectric layer. At least a part of the highly-doped source region is located under the gate region, and at least a part of the lightly-doped drain region is located under the gate region.
    Type: Grant
    Filed: May 17, 2006
    Date of Patent: February 24, 2009
    Assignee: TPO Displays Corp.
    Inventor: Ching-Wei Lin
  • SYSTEMS FOR DISPLAYING IMAGES
    Publication number: 20090045751
    Abstract: A pixel unit is provided. A storage capacitor is coupled to a power supply. A first transistor is coupled to the storage capacitor and receives a data line signal and a scan line signal, and is turned on according to the scan line signal to transmit the data line signal. A second transistor is coupled to the power supply, the first transistor and the storage capacitor, and receives the data line signal from the first transistor. A first switch unit is turned on according to a control signal to output a first current at a first emission period. A second switch unit is turned on according to the control signal to output a second current at a second emission period. A first display unit receives the first current to emit light and a second display unit receives the second current to emit light.
    Type: Application
    Filed: August 13, 2008
    Publication date: February 19, 2009
    Applicant: TPO Displays Corp.
    Inventor: Du-Zen PENG
  • METHOD AND SYSTEM FOR A LIQUID CRYSTAL DISPLAY
    Publication number: 20090046237
    Abstract: A liquid crystal display includes a liquid crystal provided between a first layer and a second layer. The first layer and the second layer may be in a substantially parallel direction to each another. Spacers may be provided in the liquid crystal to keep the first layer and the second layer spaced apart from each other. Electrode layers may include structural elements operable to prevent the spacers from moving through the liquid crystal in the substantially parallel direction. The display may include a first electrode layer and a second electrode layer having one or more gaps defining an electrode structure including electrodes to control the display.
    Type: Application
    Filed: August 13, 2007
    Publication date: February 19, 2009
    Applicant: TPO Displays Corp.
    Inventor: HARRIE HERMENS