Patents Assigned to TPO Display Corp.
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Patent number: 7552861Abstract: Display systems with digitizers. In a display system, an interface is coupled to a host system, and a control unit is coupled to a digitizer module, the display panel and the interface. The control unit drives the display panel to display a corresponding image and generates a scan timing signal to the digitizer module, according to an image signal from the host system via the interface. The digitizer module is coupled to the host system via the same interface and executes a scan operation to generate position data in response to the scan timing signal.Type: GrantFiled: October 4, 2005Date of Patent: June 30, 2009Assignee: TPO Displays Corp.Inventors: Ding-Guo Chen, Ying-Chih Lee
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Patent number: 7553055Abstract: Systems for displaying images are provided. An embodiment of a system comprises a liquid crystal display module, and the liquid crystal display module comprises a backlight assembly. The backlight module primarily includes a circuit board and at least an LED disposed on a first planar side of the circuit board. The circuit board comprises at least a hole and a heat conductor extending through the hole. Heat from the LED on the first planar side is dissipated to a second planar side of the circuit board by the heat conductor through the hole.Type: GrantFiled: August 21, 2006Date of Patent: June 30, 2009Assignee: TPO Displays Corp.Inventor: Cheng-Hung Liu
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Patent number: 7554619Abstract: The invention discloses a stacked storage capacitor structure for a LTPS TFT-LCD comprising a processed substrate, a first storage capacitor and a second storage capacitor. The first storage capacitor comprises a first conductive layer, a second conductive layer and a first insulating layer therebetween. The stacked storage capacitor structure further comprises a third conductive layer including a first portion and an extended second portion. The second storage capacitor comprises the second conductive layer, the extended second portion of the third conductive layer and a second insulating layer therebetween.Type: GrantFiled: December 5, 2005Date of Patent: June 30, 2009Assignee: TPO Displays Corp.Inventors: Mu-Chia Lee, Chun-Wei Huang, Hung-Che Lu, Kuo-Hung Kuo, Hong-Bin Li, Wen-Kuei Lai, Chia-Yi Tsai, Yu-Chi Chang, Hau-Chiun Li, Wei-Chih Chang
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Patent number: 7554644Abstract: A liquid crystal display panel comprising a first substrate, a second substrate, a plurality of photo spacers and a plurality of capacitors are provided. The first substrate has a transparent region and an opaque region. The second substrate is disposed over the first substrate. The photo spacers are disposed between the first substrate and the second substrate and located on the opaque region. The capacitors are disposed between the first substrate and the photo spacers or disposed between the second substrate and the photo spacers. The liquid crystal layer is disposed between the first substrate and the second substrate.Type: GrantFiled: January 27, 2006Date of Patent: June 30, 2009Assignee: TPO Displays Corp.Inventor: Wei-Chih Chang
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Publication number: 20090160815Abstract: A device for detecting an incident light distribution. The device has an array of light sensors, and a shadow casting element spaced above the light sensor array, with the shadow casting element between the incident light to be modelled and the sensor array. A processor interprets a cast shadow detected by the light sensor array thereby to derive information relating to the directional distribution of the incident light.Type: ApplicationFiled: December 19, 2008Publication date: June 25, 2009Applicant: TPO Displays Corp.Inventor: William Andrew Steer
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Publication number: 20090162568Abstract: A method of manufacturing an optical film includes steps of providing a substrate first and performing an alignment treatment on the surface of the substrate or forming an alignment layer on the substrate. A first liquid crystal layer is then coated on the aligned surface of the substrate or on the surface of the alignment layer, and thereafter, a first curing step is performed. After a second alignment layer is coated on the surface of the first liquid crystal layer, a second curing step is performed so as to form a multi-layer including the first and second liquid crystal layers.Type: ApplicationFiled: March 3, 2009Publication date: June 25, 2009Applicants: 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.Inventor: Yue-Shih Jeng
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Publication number: 20090160842Abstract: A drive circuit is disclosed. The drive circuit includes a first p-typed thin film transistor (PTFT), a second PTFT, a first n-typed thin film transistor (NTFT), a second NTFT and a capacitor. The drain of the first PTFT is coupled to a first electrical line, and the gate thereof is coupled to a first clock line. The drain of the second PTFT is coupled to a second clock line, and the source thereof is coupled to an output. The source of the first NTFT is coupled to a second electrical line, and the gate thereof is couple to an output of a preceding drive circuit. The source of the second NTFT is couple to a third electrical line, the gate thereof is coupled to a third clock line, and the drain thereof is coupled to the output. The capacitor has one end coupled to the second electrical line, while the other end is coupled to the source of the first PTFT, the drain of the first NTFT and the gate of the second PTFT.Type: ApplicationFiled: December 11, 2008Publication date: June 25, 2009Applicant: TPO Displays Corp.Inventor: Keitaro Yamashita
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Publication number: 20090146927Abstract: An organic light emitting diode (OLED) display and thin film transistor (TFT) manufacturing method thereof are disclosed. According to the present invention, poly-silicon layers for forming active areas of non-driving TFT (e.g. peripheral circuit TFT and switch TFT) and driving TFT used in the OLED display are respectively made by using standard laser crystallization method and non-laser crystallization method or low energy laser crystallization method. Therefore, the peripheral circuit TFT has excellent electrical performance such as high carrier mobility, while the OLED-driving TFT has good stability so that the resultant display can operate with improved luminance uniformity.Type: ApplicationFiled: November 24, 2008Publication date: June 11, 2009Applicant: TPO Displays Corp.Inventors: Te-chang WAN, Yu-Chung Liu, Te-Yu Lee
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Patent number: 7545348Abstract: A pixel unit. A first thin film transistor comprises a first control terminal receiving a scan signal, a first electrode receiving a data signal, and a second electrode. A second thin film transistor comprises a second control terminal coupled to the second electrode, a third electrode receiving a first voltage, a fourth electrode, and a fifth electrode coupled to one of the third and the fourth electrodes. A capacitor is coupled between the second control terminal and the third electrode. A light-emitting device is coupled between the fourth electrode and a second voltage.Type: GrantFiled: January 4, 2006Date of Patent: June 9, 2009Assignee: TPO Displays Corp.Inventors: Chang-Ho Tseng, Yu-Chun Shih, Hsuan-Chih Huang
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Publication number: 20090140645Abstract: The present invention relates to a tandem organic light emitting device, which reduces the driving voltage by using a non-doping material having both the electron transporting and hole transporting abilities to act, respectively, as an electron transporting layer and a hole transporting layer that are in contact with the connecting layer. The tandem organic light emitting device does not have to double its driving voltage as a result of the increasing of the number of the emitting element contained therein. However, the brightness and the current efficiency of the device of the present invention will be higher than the theoretical fold value calculated in accordance with the number of emitting element contained in the device.Type: ApplicationFiled: December 3, 2008Publication date: June 4, 2009Applicant: TPO Displays Corp.Inventors: Yu-Ting Lin, Hsiang-Lun Hsu
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Publication number: 20090135211Abstract: Image displaying systems comprising a pixel array, a memory, a parameter selector and a compensator. The memory stores compensation parameter sets of a plurality of specific pixels of the pixel array. According to driving signals of the pixel array, the parameter selector determines a target pixel that the system is going to drive, and then determines whether the target pixel is one of the specific pixels andrequires to be compensated for mura defect. When the target pixel is one of the specific pixels and requires to be compensated for mura defect, the parameter selector outputs a memory address for retrieving the corresponding compensation parameter set from the memory. Based on the retrieved compensation parameter set and an original gray level of the target pixel, the compensator generates a compensated gray level to replace the original gray level to drive the target pixel.Type: ApplicationFiled: October 30, 2008Publication date: May 28, 2009Applicant: TPO Displays Corp.Inventors: Shou-Cheng Wang, Du-Zen Peng
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Publication number: 20090135360Abstract: A liquid crystal display device includes a liquid crystal layer, a common electrode, and an electrode set. The liquid crystal layer is placed between said common electrode and the electrode set, and the electrode set is provided for switching the liquid crystal layer. The electrode set includes a first electrode for switching a first area of the. liquid crystal layer and a second electrode for switching a second area of the liquid crystal layer. Particularly, the second area includes at least a part of the area of the liquid crystal layer that the first area does not include. The first electrode has a shape which in cooperation with the second electrode allows alignment of the LC molecules in substantially two orthogonal directions. A method is provided to get rid of the circular polarizers which provide a good on-axis aperture but which show reduced off-axis performance compared to linear polarizers.Type: ApplicationFiled: October 27, 2008Publication date: May 28, 2009Applicant: TPO Displays Corp.Inventor: Nathalie Magali Danielle Dessaud
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Patent number: 7538489Abstract: A full-color active matrix organic electroluminescent device and fabrication method thereof. The full-color active matrix organic electroluminescent device includes a substrate with a plurality of TFTs, a buffer layer formed on the substrate beyond the TFTs, a color filter formed on the buffer layer, a flat layer formed on the entire surface of the color filter, a first electrode formed on the flat layer, an organic electroluminescent layer formed on the first electrode, and a second electrode formed on the organic electroluminescent layer, wherein the flat layer is formed by a low temperature thin film process.Type: GrantFiled: November 10, 2005Date of Patent: May 26, 2009Assignee: TPO Displays Corp.Inventors: Yaw-Ming Tsai, Wei-Chieh Hsueh
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Publication number: 20090127557Abstract: This invention provides a method for fabricating a polysilicon thin film layer, which performs a gas plasma treatment on channel regions defined in the polysilicon thin film layer after the polysilicon thin film layer is formed on a substrate. Threshold voltages for polysilicon thin film transistors formed subsequently are thus adjusted by the gas plasma treatment. A gate insulating layer is formed on the polysilicon thin film layer after the gas plasma treatment.Type: ApplicationFiled: November 11, 2008Publication date: May 21, 2009Applicant: TPO Displays Corp.Inventors: Tsung-Yen LIN, Ho-Hsuan Lin, Wen-Tseng Cheng, Shan-Hung Tsai
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Publication number: 20090128473Abstract: Active matrix display devices capable of improving aperture ratio of pixels and of smoothing intermediate colors are presented. An active matrix display device has static random access memory (SRAM) devices and digital to analog converters (DAC), which are both allocated to each of sub-pixels divided by a pixel. The SRAM stores an input digital data with over two bits, which can be used as gradient information for gray scale display of the sub-pixels. The input digital data is converted into analog data for display by the DAC. Gray scale display of the sub-pixels can be performed based on gray scales determined by the analog data for display. The pixel can be used to display multiple gray scales according to combinations of areas and gray scales of the sub-pixels.Type: ApplicationFiled: November 7, 2008Publication date: May 21, 2009Applicant: TPO Displays Corp.Inventors: Keitaro YAMASHITA, Keiichi Sano, Masahiro Yoshiga
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Publication number: 20090128736Abstract: A display device including a substrate, a driving element, a reflective layer and a first auxiliary layer is provided. The substrate has a first area and a second area. The driving element is placed within the first area. The reflective layer is placed above the first area and at least a portion of the second area and coupled to the driving element. The first auxiliary layer is placed on the reflective layer above the first area. The first auxiliary layer improves the electrical characteristic of the reflective layer. A reflectance of the first auxiliary layer is not larger than a reflectance of the reflective layer.Type: ApplicationFiled: November 17, 2008Publication date: May 21, 2009Applicant: TPO Displays Corp.Inventors: Chuan-Yi CHAN, Du-Zen Peng, Chang-Ho Tseng
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Publication number: 20090129697Abstract: The present invention relates to a signal compensating apparatus, which is used for generating a plurality of image control signals to control a plurality of sub-pixels of a display correspondingly, so that a backlight can form a left image and a right image via the plurality of sub-pixels after passing through an optical grating. The signal compensating apparatus comprises an input unit for receiving a plurality of image input signals sequentially, a compensating unit that compensates the received N-th image input signal based on the received (N+1)th image input signal to produce the N-th image control signal and an output unit for outputting the N-th image control signal to the sub-pixel corresponding to the N-th image input signal.Type: ApplicationFiled: November 13, 2008Publication date: May 21, 2009Applicant: TPO Displays Corp.Inventors: Yao Jen CHANG, Sheng Nan Fan, I Lin Wu
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System for displaying images including electroluminescent device and method for fabricating the same
Patent number: 7535163Abstract: Systems for displaying images and fabrication method thereof are provided. A representative system incorporates an active matrix organic electroluminescent device that includes pixel areas, a pair of spaced pixel definition layers surrounding each pixel area, and a reflective layer formed on the surface of the pixel definition layers. Particularly, the pair of spaced pixel definition layers is separated by a trench, and the reflective layer covers the sidewalls and bottom of the trench.Type: GrantFiled: February 22, 2006Date of Patent: May 19, 2009Assignee: TPO Displays Corp.Inventors: Hsiang-Lun Hsu, Ryan Lee -
Publication number: 20090122043Abstract: A system for displaying images is provided. The system comprises a reference voltage source, a digital-to-analog converter, a multiplier and a buffer. The reference voltage source outputs a voltage signal, wherein the magnitude of the voltage signal is 1/N of a driving voltage. The digital-to-analog converter converts the voltage signal to a first voltage. The multiplier receives and multiplies the first voltage by N to output the driving voltage. The buffer receives the driving voltage to drive a data line.Type: ApplicationFiled: October 22, 2008Publication date: May 14, 2009Applicant: TPO Displays Corp.Inventors: Fu-Yuan HSUEH, Kai-Chieh Yang
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Patent number: 7531971Abstract: A backlight unit comprising a boost circuit and a backlight element. The boost circuit is coupled to a voltage source and controlled by a PWM signal and a switch signal. When the backlight unit operates in a normal mode, the boost circuit is supplied by the voltage source according to the PWM signal and the switch signal to drive the backlight element to emit light. When the backlight unit operates in a standby mode, the voltage source stops supplying the boost circuit according to the PWM signal and the switch signal, and the backlight element stops emitting light.Type: GrantFiled: May 14, 2007Date of Patent: May 12, 2009Assignee: TPO Displays Corp.Inventor: Chih-Hsun Weng