Patents Assigned to TPO Display Corp.
  • Publication number: 20090040174
    Abstract: Display devices with image sensors are provided. Display pixel portions are disposed at intersections of gate lines and source lines and arranged as a matrix. Each display pixel portion includes a liquid crystal element, a photo detector detecting an incident light, a hold device sustaining an analog first data corresponding to a light flux of the incident light detected by the photo detector, and a data determination device generating a second data according to the first data sustained by the hold device. A gate driver selectively activates the gate lines. A source driver provides display data to the source lines. An output device retrieves the analyzed output data. The analyzed output data is the second data output by the data determination device through the source lines. A sensitivity control device changes a determination base of the analyzed output data corresponding to the intensity of the incident light.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 12, 2009
    Applicant: TPO Displays Corp.
    Inventor: Keitaro YAMASHITA
  • Publication number: 20090040164
    Abstract: This invention provides a digital-analog converter circuit capable of appropriately correcting the optical characteristics of the liquid crystals according to the change in design or the preference of the user, and achieving goals of miniaturization, cost-lowering, as well as wide design suitability. The digital-analog converter circuit includes a storage device for storing a voltage characteristic curve, a modulating device for generating a frequency signal in accordance with a data from the voltage characteristic curve stored in the storage device in response to a selected data, a variable resistance device connected between a first power source and a second power source, in which the resistance value of the variable resistance device is changed in accordance with the frequency signal from the modulating device, a holding device for holding a voltage generated at the variable resistance device, and an output device for outputting the voltage to a desired output end.
    Type: Application
    Filed: August 8, 2008
    Publication date: February 12, 2009
    Applicant: TPO Displays Corp.
    Inventor: Keitaro YAMASHITA
  • Publication number: 20090033509
    Abstract: A liquid crystal display device with a substrate and a gas detector. The substrate has a pixel array area and an electrical connection area. The pixel array area has a plurality of pixels. The electrical connection area has a plurality of bond pads positioned on the surface of the substrate to address the plurality of pixels in the pixel array area. The gas detector is positioned within the electrical connection area. The gas detector is arranged to detect the presence of a specified gas.
    Type: Application
    Filed: August 2, 2007
    Publication date: February 5, 2009
    Applicant: TPO Displays Corp.
    Inventor: Pavel Novoselov
  • Publication number: 20090027103
    Abstract: A semiconductor integrated circuit capable of maintaining characteristics of transistors in a circuit including a plurality of cascade connected transistors. The circuit includes an inverter which has a series connection of P-MOS transistors and a pair of N-MOS transistors. The P-MOS transistor is connected to a high potential source VH and the N-MOS transistor is connected to a low potential source VL. The gate of each MOS transistor is connected to an input signal line. The inverter circuit further includes a P-MOS transistor connected between a node and input signal line, and an N-MOS transistor connected between a node of the N-MOS transistors and the input signal line. The gates of the P-MOS transistor and the N-MOS transistor are connected to an output signal line of the inverter circuit.
    Type: Application
    Filed: July 22, 2008
    Publication date: January 29, 2009
    Applicant: TPO Displays Corp.
    Inventor: Keitaro YAMASHITA
  • Publication number: 20090021685
    Abstract: A method for forming a display panel including the following steps is provided. A substrate is provided. A plurality of barrier patterns are formed on the substrate. A planar structure is formed over the plurality of barrier patterns. A plurality of pixel elements and/or a plurality of array metals are formed over the planar structure. The planar structure has a thickness between 10 ?m and 200 ?m.
    Type: Application
    Filed: March 24, 2008
    Publication date: January 22, 2009
    Applicant: TPO Displays Corp.
    Inventors: Hendrik LOUWSMA, Charles Schmidgall
  • Publication number: 20090021152
    Abstract: The invention provides a system for displaying image and a fabrication method thereof. The system comprises an organic electroluminescent display device comprising a first substrate divided into a pixel region and a non-pixel region, a conductive layer formed in the non-pixel region, a second substrate corresponding to the first substrate, a first electrode formed on the second substrate, an organic electroluminescent layer formed on the first electrode, and a second electrode formed on the organic electroluminescent layer and electrically connected to the conductive layer. The system further includes an exterior circuit electrically connected to the conductive layer for transmitting signals.
    Type: Application
    Filed: June 27, 2008
    Publication date: January 22, 2009
    Applicant: TPO Displays Corp.
    Inventors: Chuan-Yi CHAN, Du-Zen Peng
  • Publication number: 20090021674
    Abstract: A method for forming a display panel including the following steps is provided. A barrier layer having a plurality of openings is formed. A color filter layer having a plurality of units and a plurality of black matrix structures among the plurality of units is formed over the barrier layer. A first width of the plurality of openings and a second width of the plurality of black matrix structures are determined based on a first aperture ratio of the barrier layer and a second aperture ratio of the color filter layer.
    Type: Application
    Filed: March 24, 2008
    Publication date: January 22, 2009
    Applicant: TPO Displays Corp.
    Inventor: Hendrik LOUWSMA
  • Publication number: 20090021464
    Abstract: A liquid crystal display (LCD) with a driver IC and an LCD panel having source and gate lines. A gate driver is disposed in the LCD panel for sequentially supplying scan signals to the gate lines of the panel. A source driver in the driver IC converts pixel data into an analog source signal and supplies the signal to the source lines. A lookup table is stored with a mapping of possible luminance values for pixels of the LCD panel onto at least one luminance control parameter. The source driver converts the pixel data so that a voltage of the analog source signal increases during a gate scan period depending on the luminance control parameter in such a way that at the end of the gate scan period a voltage at a corresponding pixel electrode is equal to an analog value corresponding to the pixel data.
    Type: Application
    Filed: July 19, 2007
    Publication date: January 22, 2009
    Applicant: TPO Displays Corp.
    Inventors: MARTIN CREUSEN, RONALD BARTELS
  • Patent number: 7480020
    Abstract: A transflective liquid crystal display and method of fabricating the same. The pixel region of the transflective comprises a thin film transistor, a transmissive electrode, and a reflective electrode, wherein the overlap of the reflective electrode and the transparent electrode composes a reflective region and the non-overlapping region of the reflective electrode and the transparent electrode form a transmissive region, and the transparent electrode and the source and the drain regions of the thin film transistor are formed of the same silicon layer.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: January 20, 2009
    Assignee: TPO Displays Corp.
    Inventors: Chi-Jain Wen, Dai-Liang Ting, Gwo-long Lin, Shyuan-Jeng Ho, I-Wei Wu
  • Patent number: 7474483
    Abstract: A structure of color elements for a color filter. At least a first, second, and third color element are disposed in a delta-type arrangement. An overlapping portion is formed between two adjacent color elements to serve as a light-blocking area. At least one color element is octagonal, having four straight sides and four beveled sides.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: January 6, 2009
    Assignee: TPO Displays Corp.
    Inventors: Hsin-An Cheng, Kuang-Lung Kuo, Sheng-Shiou Yeh, Tzu-Seng Yang
  • Patent number: 7474706
    Abstract: A method of data transmission is provided. The method uses a differential data reverse signal to implement the differential data signal so that the number of the signal transitions can be effectively reduced in order to keep up with the data transmission rate. Further, because of using the differential data signals and the differential data reverse signal, the power consumption and the EMI can also be reduced.
    Type: Grant
    Filed: October 13, 2004
    Date of Patent: January 6, 2009
    Assignee: TPO Displays Corp.
    Inventors: Ching-Tung Wang, Fu-Zhi Chang, Jui-Lung Hung
  • Patent number: 7471279
    Abstract: A display circuit for a liquid crystal display panel is provided. The display circuit comprises a control circuit, a data driving circuit, a partial display mode driving circuit, a scanning circuit, and a liquid crystal display panel. When the LCD works in the partial display mode, the control circuit will stop sending out the shift clock signal for controlling the data driving circuit for the non-display area and will make both ends of the pixel electrodes in the non-display area equipotential. Hence, there is no complicated operation for the data driving circuit, and power consumption and thus be reduced.
    Type: Grant
    Filed: January 19, 2005
    Date of Patent: December 30, 2008
    Assignee: TPO Displays Corp.
    Inventors: Chaung-Ming Chiu, Geng Lin
  • Patent number: 7467840
    Abstract: A method for controlling printing actions of a print head (1) comprising pumps (10) filled with ink (18), and actuators (16) for generating actuation pulses acting on the ink(18), comprises the step of determining a characteristic frequency of the pumps (10). As the characteristic frequency of the pumps (10) is directly related to the geometry of the pumps (10), the characteristic frequency can be used as an indicator of the state of the pumps (10) and the volume of the ink droplets emitted by the pumps (10). In case a slight change of the characteristic frequency is detected, the actuation pulse is adjusted in order to still meet the requirements regarding the volume of the ink droplets. In case a relatively large change of the characteristic frequency is detected, the printing action of the pump (10) concerned is stopped, and may be taken over by another pump (10).
    Type: Grant
    Filed: April 28, 2004
    Date of Patent: December 23, 2008
    Assignee: TPO Displays Corp.
    Inventors: Johan Frederik Dijksman, Steven Ferdinand Kleijer
  • Patent number: 7463251
    Abstract: The invention relates to a display device (6;6?) comprising a display (2) having a plurality of display pixels (3;3?) with light emitting elements (LED) and at least a first drive element (T1) and a second drive element (T2) for driving said light emitting elements (LED) in accordance with an analogue data signal, representing at least one frame in a range from low to high overall light emission states for said display (2). The display device (6;6?) further comprises a display controller (10) having a data input (9) for the analogue data signal, a sensing unit (16) adapted to evaluate the overall light emission state of said frame and an output (13) for generating at least one sparkling signal for the one or more display pixels (3;3?) having a high light emission state (18) exceeding a sensed low overall light emission state of said frame.
    Type: Grant
    Filed: March 23, 2004
    Date of Patent: December 9, 2008
    Assignee: TPO Displays Corp.
    Inventors: Andrea Giraldo, Mark T. Johnson, David A. Fish
  • Patent number: 7463315
    Abstract: An apparatus of a backlight module and a liquid crystal display. The apparatus includes a plurality of point light sources and a light guide plate. The plurality of point light sources is positioned on a base plate. The light guide plate has a first surface and a second surface parallel to the first surface. The first surface of the light guide plate has a plurality of convex structures corresponding to the point light sources, every convex structure has a distal end portion, and an arc-shaped recess formed therein.
    Type: Grant
    Filed: March 11, 2004
    Date of Patent: December 9, 2008
    Assignee: TPO Displays Corp.
    Inventor: Yi-Hui Chang
  • Publication number: 20080297710
    Abstract: A system for displaying images is provided including a liquid crystal display panel. The liquid crystal display panel has a plurality of sub-pixels, each defined between two adjacent data lines extending along a vertical direction and two adjacent scan lines extending along a horizontal direction. The liquid crystal display panel comprises a transparent bottom electrode on the data lines, and a transparent top electrode on the transparent bottom electrode, wherein the transparent top electrode has an extended portion at a corner of the sub-pixel, extending along the horizontal direction to overlap at least a portion of the data line.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Applicant: TPO Displays Corp.
    Inventors: Su-Jung HSU, Shao-Wu Hsu
  • Patent number: 7456827
    Abstract: The invention relates to an active matrix display device (10) having a plurality of pixels (110). The pixels are grouped into pixel groups (R?, G?, B?). Each pixel group (R?, G?, B?) is assigned a specific duty cycle, such that at least two pixel groups are assigned different duty cycles. The device furthermore comprises circuitry (54) for driving each pixel group (R?, G?, B?) at its assigned duty cycle. The invention also relates to the driving of such display devices.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: November 25, 2008
    Assignee: TPO Displays Corp.
    Inventor: Gerard Eduard Rosmalen
  • Patent number: 7456432
    Abstract: A system having an electrostatic discharge protection structure and a method for manufacturing the structure are provided. The structure comprises a conducting layer, a material layer and a bridging layer wherein the conducting layer is divided into a first conducting portion and a second conducting portion to form a gap therebetween. The material layer is disposed onto the conducting layer, forming a first via hole to expose a part of the first conducting portion and a second via hole to expose a part of the second conducting portion. Finally, the bridging layer disposed onto the material layer electrically connects the first conducting portion to the second conducting portion within the first and second via holes, whereby the electrostatic produced during the manufacturing process would be prevented from damaging the driver circuits.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: November 25, 2008
    Assignee: TPO Displays Corp.
    Inventors: Yi-Fan Shih, Chun-Yen Liu, Kuo-Bin Hsu, Chang-Ho Tseng, Shih-Chang Chang
  • Publication number: 20080284771
    Abstract: The present invention is to provide a display device having a pre-charge circuit that is simple in construction by eliminating the need for a pre-charge power supply. A pre-charge circuit pre-charges the plurality of source buses prior to driving a plurality of source buses by a source driver. In the pre-charge circuit, pre-charge lines are connected to the plurality of source buses at the time of pre-charging. Pre-charge control switches connect pre-charge capacitors alternately to power supplies or the pre-charge lines. The pre-charge capacitors are charged when connected to the power supplies. The pre-charge capacitors are used to pre-charge the plurality of source buses when connected to the pre-charge lines.
    Type: Application
    Filed: April 7, 2008
    Publication date: November 20, 2008
    Applicant: TPO Displays Corp.
    Inventor: Fumirou Matsuki
  • Patent number: 7449716
    Abstract: A bump structure on a substrate including at least one first electrode, at least one first bump, at least one second bump is provided. The first electrode is disposed on the substrate. The first bump is disposed on the first electrode. The second bump is disposed on the substrate. The height of the second bump is greater than that of the first bump. The elastic bump of the present invention can be used for measuring the bonding process quality.
    Type: Grant
    Filed: June 5, 2007
    Date of Patent: November 11, 2008
    Assignees: Taiwan TFT LCD Association, Chunghwa Picture Tubes, LTD., Au Optronics Corporation, Hannstar Display Corporation, Chi Mei Optoelectronics Corporation, Industrial Technology Research Institute, TPO Displays Corp.
    Inventors: Ming-Yao Chen, Sheng-Shu Yang, Shyh-Ming Chang, Ngai Tsang