Patents Assigned to TPO Displays Corp.
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Publication number: 20090273723Abstract: An LCD device comprises upper substrate, lower substrate, and a liquid crystal (LC) cell disposed therebetween. The LC cell comprises liquid crystals. According to the present invention, in the LCD device which applies voltage to the liquid crystals to control transmissive light for proceeding display, the liquid crystals are applied with a voltage larger than a predetermined voltage for proceeding display. The reflect light and the transmissive light of the liquid crystals are the predetermined color under a condition without applying the voltage thereto.Type: ApplicationFiled: April 29, 2009Publication date: November 5, 2009Applicant: TPO Displays Corp.Inventor: Minoru SHIBAZAKI
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Patent number: 7612770Abstract: Systems for displaying images are provided. A representative system comprises a signal driving circuit comprising a plurality of shift registers connected in series and controlled only by a first clock and a second clock, generating corresponding driving pulses in turn in response to a start pulse. Each shift register comprises a pulse generation unit with a first clock input terminal receiving one of the first and the second clocks and a first power terminal coupled to a first power voltage, and a leakage protection unit coupled to the pulse generation unit, electrically separating the first power voltage from the received clock at the first clock input terminal.Type: GrantFiled: July 10, 2006Date of Patent: November 3, 2009Assignee: TPO Displays Corp.Inventor: Ching-Hone Lee
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Patent number: 7612379Abstract: An image display system has a multi-gate thin film transistor (TFT) disposed on a transparent substrate. The multi-gate TFT includes a silicon film layer, a first electrode and a reflecting layer. The silicon film layer is formed on the transparent substrate and has a first crystallization zone and a second crystallization zone, which are not adjacent to each other. A grain size of the first crystallization zone is smaller than a grain size of the second crystallization zone. The first electrode corresponding to the first crystallization zone is disposed on the silicon film layer. The reflecting layer corresponding to the second crystallization zone is disposed on the transparent substrate. The silicon film layer is disposed on the transparent substrate and the reflecting layer.Type: GrantFiled: November 9, 2007Date of Patent: November 3, 2009Assignee: TPO Displays Corp.Inventors: Yoshihiro Morimoto, Ryan Lee, Hanson Liu, Fengyi Chen
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Publication number: 20090267501Abstract: The present invention relates to an active matrix display and an image display system using the active matrix display. The image display system includes the active matrix display and a power supply apparatus. The active matrix display includes an active matrix substrate, a reflective layer and a sidewall-protective structure. The reflective layer is formed above the active matrix substrate and has first and second surfaces. The second surface faces the active matrix substrate. The sidewall-protective structure is formed above the active matrix substrate and surrounds the sidewalls of the reflective layer adjacent to the first and second surfaces.Type: ApplicationFiled: April 24, 2009Publication date: October 29, 2009Applicant: TPO DISPLAYS CORP.Inventors: Chuan-Yi CHAN, Du-Zen PENG, Ryuji NISHIKAWA
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Patent number: 7605793Abstract: Systems for displaying images are provided, comprising a pixel array, a first gate driver and a second gate driver. The first gate driver is disposed on a first side of the pixel array and the second gate driver is disposed on a second side opposite to the first side. The first gate driver comprises a first shift register and a first AND gate. The first shift register receives a first clock signal and a start signal to generate a first control signal. The first AND gate receives a second clock signal and the first control signal to generate a first gate signal. The second gate driver comprises a second shift register and a second AND gate. The second shift register receives a second clock signal and a start signal to generate a second control signal. The second AND gate receives a first clock signal and the second control signal to generate a second gate signal.Type: GrantFiled: August 29, 2006Date of Patent: October 20, 2009Assignee: TPO Displays Corp.Inventor: Szu-Hsien Lee
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Patent number: 7602364Abstract: An image sticking elimination circuit is provided for an abnormal power-off of a display unit. The image sticking elimination circuit comprises: a charge storage device and an isolation device. The isolation device being turned on when the abnormal power-off of a display occurs; wherein the charge storage device releases charges stored therein when the isolation device is turned on.Type: GrantFiled: October 7, 2004Date of Patent: October 13, 2009Assignee: TPO Displays Corp.Inventors: An Shih, Wenlong Weng, Chien-Chih Chen, Chao-Yu Meng
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Publication number: 20090253233Abstract: A method of fabricating a bonding structure having compliant bumps includes first providing a first substrate and a second substrate. The first substrate includes first bonding pads. The second substrate is disposed on one side of the first substrate and includes second bonding pads and compliant bumps disposed thereon. The second bonding pads are opposite to the first bonding pads. Next, a non-conductive adhesive layer and ball-shaped spacers are formed between the first and the second substrates. Finally, the first substrate, the non-conductive adhesive layer, and the second substrate are compressed, such that the compliant bumps on the second bonding pads of the second substrate pass through the non-conductive adhesive layer and are electrically connected to the first bonding pads of the first substrate, respectively. The ball-shaped spacers are distributed in the non-conductive adhesive layer sandwiched between the first and the second substrates for maintaining the gap therebetween.Type: ApplicationFiled: June 18, 2009Publication date: October 8, 2009Applicants: Taiwan TFT LCD Association, Chunghwa Picture Tubes, LTD., AU Optronics Corporation, Hannstar Display Corporation, CHI Mei Optoelectronics Corporation, Iindustrial Technology Research Institute, TPO Display Corp.Inventors: Shyh-Ming Chang, Sheng-Shu Yang
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Patent number: 7599018Abstract: Systems for displaying images are provided. An embodiment of a system comprises a liquid crystal display device with a liquid crystal display module incorporated thereinto. The flat display module primarily includes a display unit, a plastic frame, a bezel and a flexible sealant disposed between the plastic frame and the bezel. The plastic frame surrounds the display unit and has a protrusion. During assembly, the protrusion is inlaid into the flexible sealant to seal the gap between the plastic frame and the bezel, thereby preventing incursion of dust into the display unit.Type: GrantFiled: September 21, 2006Date of Patent: October 6, 2009Assignee: TPO Displays Corp.Inventors: Jui-Hsieh Shen, Yi-Hui Chang
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Publication number: 20090246988Abstract: A contact structure disposed on a substrate is provided. The contact structure includes a pad, a polymer bump and a conductive layer. The pad is on the substrate. The polymer bump having a curve surface and a steep surface connecting with the curve surface is disposed on the substrate. The polymer bump is covered by the conductive layer and the conductive layer is electrically connected with the pad.Type: ApplicationFiled: June 24, 2008Publication date: October 1, 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.Inventors: Sheng-Shu Yang, Shyh-Ming Chang
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Publication number: 20090237582Abstract: A system for displaying images, having a display panel, comprising: a lower substrate with a first surface, wherein the first surface is divided into a pixel area and a driver area; a peripheral circuit within the driver area on the first surface; at least one thin film transistor is formed in the pixel area, wherein the thin film transistor comprises an active layer, a gate dielectric layer overlying the active layer, and a gate electrode overlying the gate dielectric layer, and the active layer has source and drain regions; a first transparent electrode layer directly overlapped on a portion of the drain region, electrically connected thereto; and a second transparent electrode pattern is disposed on the gate dielectric layer, opposing the first transparent electrode layer.Type: ApplicationFiled: March 19, 2008Publication date: September 24, 2009Applicants: TPO Displays Corp.Inventors: Ramesh KAKKAD, Chieh-Wen Lin
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Publication number: 20090237338Abstract: A driving method for a liquid crystal display device and an over-drive correction device, which can perform proper overdrive control in various operating environments. The over-drive correction device includes a dummy liquid crystal unit embedded in the liquid crystal display device, a liquid crystal capacitive sensor to detect a capacitance (dielectric constant) of the dummy liquid crystal unit, a calculation circuit for lookup tables, an overdrive lookup table, a prediction lookup table and an overdrive circuit. The calculation circuit for lookup tables corrects data in the over-drive lookup table and the prediction lookup table according to the detection result generated from the liquid crystal capacitive sensor. The over-drive circuit performs over-drive control in the liquid crystal display device based on the newly corrected over-drive lookup table and prediction lookup table.Type: ApplicationFiled: March 18, 2009Publication date: September 24, 2009Applicant: TPO DISPLAYS CORP.Inventor: Naoki Sumi
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Publication number: 20090237580Abstract: A system for display images comprising a thin film transistor array substrate is disclosed. The system for display images comprises a substrate having a pixel area, a source/drain region overlying the substrate within an active layer in the pixel area, a bottom electrode overlying the substrate in the pixel area, a top electrode overlying the bottom electrode, a first dielectric layer disposed on the active layer, a second dielectric layer disposed on the first dielectric layer, wherein the second dielectric layer is disposed between the bottom electrode and the top electrode and a gate disposed overlying the active layer, wherein the first and second dielectric layers are interposed between the gate and the active layer.Type: ApplicationFiled: March 20, 2008Publication date: September 24, 2009Applicant: TPO Displays Corp.Inventors: Ramesh KAKKAD, Hsiao-Wei KAO, Chung-Sheng LIN, Chih-Chung LIU
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Patent number: 7592628Abstract: A system for displaying images comprises a thin film transistor (TFT) device comprising first and second active layers disposed on a substrate in the driving circuit region and in the pixel region, respectively. Each active layer comprises a channel region, a source/drain region and a lightly doped region formed therebetween. Two gate structures are disposed on the first and second active layers, respectively. Each gate structure comprises a stacked first and second gate dielectric layers and a gate layer, and the second gate dielectric layer has a length shorter than that of the first gate dielectric layer but longer than the gate length of the gate layer. The lightly doped region of the first active layer has a length different from that of the second active layer.Type: GrantFiled: July 21, 2006Date of Patent: September 22, 2009Assignee: TPO Displays Corp.Inventors: Yoshihiro Morimoto, Ryan Lee
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Publication number: 20090231321Abstract: A source driver circuit of an LCD apparatus with a small occupied area and low power consumption is disclosed. The source driver circuit comprises a reference voltage circuit, a negative voltage driving DAC, a positive voltage driving DAC, an invert amplifier, a non-invert amplifier and a voltage selector. The reference voltage circuit generates a reference voltage. The negative voltage driving DAC divides the display data into negative gradation voltages. The positive voltage driving DAC divides the display data into positive gradation voltages. The invert amplifier works as an analogue buffer for the negative gradation voltages for driving the LCD apparatus and the non-invert amplifier works as an analogue buffer for the positive gradation voltages for driving the LCD apparatus. The voltage selector provides the reference voltage to the positive and negative voltage driving DACs.Type: ApplicationFiled: March 17, 2009Publication date: September 17, 2009Applicant: TPO DISPLAYS CORP.Inventors: Fumirou MATSUKI, Kazuyuki HASHIMOTO
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Patent number: 7587803Abstract: A process for assembling a camera module comprises the following steps:—placing the substrate (10) on a positioning die (70);—irradiating the lens assembly (30) with parallel rays of light (90);—displacing a lens assembly (30) comprising the convex lens (33) in an axial direction;—measuring the light intensity of light passing through a spot hole (75) by means of a light sensor (80) being accommodated in the positioning die (70);—determining an optimal axial position of the lens assembly (30) on the basis of an obtained light intensity curve;—bringing the lens assembly (30) to the optimal axial position;—removing the positioning die (70); and—attaching an image sensor chip to a bottom surface (12) of the substrate (10).Type: GrantFiled: September 26, 2003Date of Patent: September 15, 2009Assignee: TPO Displays Corp.Inventors: Vincent Johannes Jacobus Montfort, Fransiscus Gerardus Coenradus Verweg
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Publication number: 20090225096Abstract: Disclosed is an LCD display utilizing a frame memory and a lookup table for pixel overdrive. A plurality of pixels is arranged in an array corresponding to the gate lines and the source lines. The frame memory is a memory formed by at least one storage capacitor and at least one thin film transistor in each pixel. Moreover, a compression unit and a decompression unit are coupled with the frame memory. The compression unit outputs compressed gradation data of the present image. The decompression unit outputs decompressed gradation data of the former image.Type: ApplicationFiled: March 5, 2009Publication date: September 10, 2009Applicant: TPO Displays Corp.Inventors: Masahiro Yoshiga, Naoki Sumi, Keitaro Yamashita
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Publication number: 20090226629Abstract: A method for fabricating a display substrate is provided. A substrate is provided first. After that, an alignment film coating and an alignment treatment are performed to the substrate, and a layer of photoreactive monomer material is coated on the surface of the substrate after the alignment treatment. Thereafter, the layer of photoreactive monomer material is selectively irradiated by UV light in an exposed region, and the layer of photoreactive monomer material in an unexposed region is removed for liquid crystal molecules to have different pretilt angles in the exposed region and the unexposed region.Type: ApplicationFiled: July 21, 2008Publication date: September 10, 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.Inventors: Ze-Yu Yen, Ding-Jen Chen, Ya-Ting Wu, Jian-Lung Chen
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Publication number: 20090219295Abstract: For reducing power consumption of a display, whether a currently received frame data is different from a currently displayed frame data or not is discriminated. If the currently received frame data is different from the currently displayed frame data, execute data refresh in a normal way. If the currently received frame data is not different from the currently displayed frame data, suspend data refresh for saving power.Type: ApplicationFiled: November 26, 2008Publication date: September 3, 2009Applicant: TPO Displays Corp.Inventor: Jozef Hubert Reijnaerts
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Publication number: 20090215212Abstract: The method for fabricating a flat panel display includes performing a first crystallization process to re-crystallize an amorphous silicon layer on a glass substrate to make the amorphous silicon layer become a polysilicon layer, forming a patterned absorbing layer to cover an active area pattern of a driving TFT and to expose portions of the polysilicon layer, performing a second crystallization process to re-crystallization the exposed portions of the polysilicon layer so that the exposed portions of the polysilicon layer has a different grain structure from the grain structure of the driving TFT, removing the patterned absorbing layer, and removing portions of the polysilicon layer to form an active area of the driving TFT and an active area of a switching TFT area in the exposed portions of the polysilicon layer of each sub-pixel.Type: ApplicationFiled: May 1, 2009Publication date: August 27, 2009Applicant: TPO DISPLAYS CORP.Inventors: Chun-Yen Liu, Chang-Ho Tseng
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Patent number: 7580015Abstract: A pixel circuit of an active-matrix organic light-emitting diode does not provide currents for an organic light-emitting diode during a compensation period, and provides currents, free from variation of a threshold voltage of a thin-film transistor, for the organic light-emitting diode during a data input period, so as to improve gray levels, increase contrast ratios, and decrease power consumption.Type: GrantFiled: February 24, 2006Date of Patent: August 25, 2009Assignee: TPO Displays Corp.Inventors: Ya-Hsiang Tai, Cheng-Chiu Pai