Patents Assigned to Hannstar Display Corporation
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Patent number: 10371979Abstract: A display panel includes the following components. A metal layer includes a touch sensing line and a data line. An insulation layer is disposed on the metal layer and has a first opening used to expose at least a portion of the touch sensing line as a first connection part. A common electrode is disposed on the insulation layer. The common electrode is part of a touch electrode, and the common electrode has a second opening above the first opening. Another insulation layer is disposed on the common electrode, and has a third opening above the second opening to expose at least a portion of the common electrode as a second connection part. The connection electrode electrically connects the first connection part to the second connection part through the third opening, the second opening and the first opening.Type: GrantFiled: September 27, 2017Date of Patent: August 6, 2019Assignee: HannStar Display CorporationInventors: Cheng-Yen Yeh, Kuo-Chang Su
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Patent number: 10358596Abstract: A fluorescent material includes at least one organic compound with molecular stacking of H-aggregate or J-aggregate. When a first color light illuminates the fluorescent material, the organic compound with molecular stacking of H-aggregate or J-aggregate converts the first color light to a second color light.Type: GrantFiled: December 1, 2016Date of Patent: July 23, 2019Assignee: HANNSTAR DISPLAY CORPORATIONInventor: Jiun-Haw Lee
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Patent number: 10312263Abstract: The display panel includes a first substrate, first signal lines, second signal lines, third signal lines, thin film transistors, pixel electrodes, and at least one driving circuit. The first signal lines respectively intersect with the second signal lines to define multiple pixel regions. At least one of the pixel regions has one of the third signal lines diposed therein. The second signal lines and the third signal lines are electrically connected to the at least one driving circuit. Each of the first signal lines is electrically connected to one of the gate and the source of at least one of the thin film transistors. Each of the second signal lines is electrically connected to the other one of the gate and the source of at least one of the thin film transistors. Each of the third signal lines is electrically connected to one of the first signal lines.Type: GrantFiled: June 21, 2017Date of Patent: June 4, 2019Assignee: HannStar Display CorporationInventor: Cheng-Yen Yeh
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Publication number: 20190138129Abstract: A touch device including a plurality of touch electrodes which are electrically separated is provided. Each touch electrode includes a plurality of first curved patterns and a plurality of conductive lines. The first curved patterns are parallel to each other. A first pitch is between two adjacent first curved patterns. Each conductive line is connected between two adjacent first curved patterns. The conductive lines are arranged in a plurality of second curved patterns. The first curved patterns intersect the second curved patterns. In this way, the touch device can have preferable touch and visual effects.Type: ApplicationFiled: November 1, 2018Publication date: May 9, 2019Applicant: HannStar Display CorporationInventors: Hsing-Ying Lee, Cheng-Yen Yeh, Wei-Chih Hsu
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Publication number: 20190139501Abstract: A display panel including a first substrate, a second substrate opposite to the first substrate, and a display medium located between the first substrate and the second substrate is provided. The display panel further includes a plurality of pixel structures, a plurality of data lines and a plurality of scan lines electrically connected to the pixel structures, a first driving unit located at a peripheral area, at least one test line, and at least one first pad located at the peripheral area. Each of the data lines has a first end and a second end opposite to each other. The first driving unit is electrically connected to the first ends of the data lines. The at least one test line is electrically connected to the second ends of at least part of the data lines. The at least one test line is grounded through the at least one first pad.Type: ApplicationFiled: August 28, 2018Publication date: May 9, 2019Applicant: HannStar Display CorporationInventors: Sung-Chun Lin, Hsien-Tang Hu, Hsuan-Chen Liu, Chien-Ting Chan
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Patent number: 10280339Abstract: A method for manufacturing a flexible electrical device is provided and includes the following steps. A carrier substrate is provided. A releasing layer is formed on the carrier substrate. A flexible substrate is formed on the releasing layer. The flexible substrate has a first surface facing the releasing layer and a second surface opposite to the first surface. The flexible substrate is not in contact with the carrier substrate. A device layer is formed on the flexible substrate. The device layer has a third surface facing the flexible substrate and a fourth surface opposite to the third surface. The flexible substrate is separated from the releasing layer, and the releasing layer remains on the carrier substrate. Accordingly, the releasing layer and the carrier substrate can be recycled for forming another flexible electrical device.Type: GrantFiled: October 12, 2017Date of Patent: May 7, 2019Assignees: HannStar Display (Nanjing) Corporation, HannStar Display CorporationInventors: Yen-Chung Chen, Chen-Hao Su
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Patent number: 10254612Abstract: A display panel is provided, and includes a first substrate, a connecting structure, a passivation layer, a second substrate and a sealant. The first substrate has an active area and a peripheral area. The connecting structure is disposed on the first substrate and located in the peripheral area, and is configured to electrically connect different metal layers. The passivation layer is disposed on and covers the connecting structure. The second substrate is disposed opposite to the first substrate. The sealant is sandwiched between the first substrate and the second substrate. In the display panel, a vertical projection of the sealant on the first substrate and a vertical projection of the connecting structure on the first substrate are overlapped.Type: GrantFiled: June 15, 2017Date of Patent: April 9, 2019Assignees: HannStar Display (Nanjing) Corporation, HannStar Display CorporationInventors: Hsien-Tang Hu, Hsuan-Chen Liu, Chien-Ting Chan
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Patent number: 10249233Abstract: The invention provides a gate driving circuit and a display device. The gate driving circuit is configured to drive a display panel of the display device, and includes shift registers and at least a dummy shift register. The shift registers are respectively configured to generate and output scan signals to scan lines of the display panel, the dummy shift register is configured to generate a dummy scan signal before the scan signals are generated. The dummy scan signal and the scan signals are sequentially generated.Type: GrantFiled: July 24, 2018Date of Patent: April 2, 2019Assignee: HannStar Display CorporationInventors: Chien-Ting Chan, Yu-Tuan Hsu, Po-Yi Chen
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Patent number: 10229747Abstract: The present invention relates to a display panel and a gate driving circuit of the display panel. The gate driving circuit is disposed on a first substrate and includes a first transistor unit. The first transistor unit is disposed on the first substrate and includes a first gate block, a second gate block, and a first connection portion. The first connection portion is electrically connected to the first gate block and the second gate block. At least a gap is formed between the first gate block and the second gate block. The display panel includes the first substrate, the gate driving circuit, a second substrate, and a sealant. The second substrate is disposed corresponding to the first substrate. The sealant is formed between the first substrate and the second substrate.Type: GrantFiled: August 15, 2016Date of Patent: March 12, 2019Assignees: HANNSTAR DISPLAY (NANJING) CORPORATION, HANNSTAR DISPLAY CORPORATIONInventors: Sung-Chun Lin, Hsuan-Chen Liu, Chien-Ting Chan
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Publication number: 20190073070Abstract: A touch display apparatus includes a display panel having pixel areas and touch electrodes disposed above the display panel. The pixel areas are arranged with a pixel pitch Ppx in a first direction. The touch electrodes have bending patterns arranged with a first touch electrode pitch Ptx in the first direction. Each bending pattern includes repeating portions connected with one another. The repeating portions are arranged with a second touch electrode pitch Pty in a second direction intersecting the first direction. Each repeating portion has a first line segment inclined with respect to the first direction and the second direction. An angle a is included between the first line segment and the second direction, and 10°???45°. The pixel pitch, the first touch electrode pitch and the second touch electrode pitch satisfy 1.5Ppx?Ptx?2Ppx and 1.63Ppx?0.5Pty?9.94Ppx.Type: ApplicationFiled: December 6, 2017Publication date: March 7, 2019Applicant: HannStar Display CorporationInventor: Heng-Cheng Tseng
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Patent number: 10181303Abstract: A shift register circuit is disclosed. The shift register circuit includes a first gate driving module, a second gate driving module, a first discharging module, and a second discharging module. The first gate driving module has a first node and a first output terminal. The second gate driving module has a second node and a second output terminal. The first discharging module is coupled to the first node, the second node, and the first output terminal respectively. The second discharging module is coupled to the second node, the first node, and the second output terminal respectively. Both the first discharging module and the second discharging module include ten transistors respectively.Type: GrantFiled: February 2, 2016Date of Patent: January 15, 2019Assignees: HANNSTAR DISPLAY (NANJING) CORPORATION, HANNSTAR DISPLAY CORPORATIONInventors: Chia-Hua Yu, Sung-Chun Lin, Hsuan-Chen Liu, Chien-Ting Chan
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Patent number: 10121432Abstract: A shift register includes a primary circuit and a secondary circuit including an inverting circuit and a pull-down circuit. The pull-down circuit includes a first transistor. The primary circuit has an output terminal, a first and a second input terminals, and is electrically connected to a first common terminal. The secondary circuit is electrically connected to the first common terminal. The pull-down circuit is electrically connected to the inverting circuit. The first transistor has a first top gate, a first bottom gate, a first first electrode and a first second electrode, wherein the first second electrode is configured to receive a first voltage level, the first top gate is configured to receive a second voltage level, and the second voltage level is higher than the first voltage level.Type: GrantFiled: August 22, 2016Date of Patent: November 6, 2018Assignees: HANNSTAR DISPLAY (NANJING) CORPORATION, HANNSTAR DISPLAY CORPORATIONInventors: Sung-Chun Lin, Hsuan-Chen Liu, Chien-Ting Chan
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Patent number: 10121438Abstract: A shift register and a display device are provided. The shift register includes a pre-charge unit, a pull-up unit, a first pull-down unit and a second pull-down unit. The pre-charge unit receives first and second input signals, and outputs a pre-charge signal via a first node. The pull-up unit receives the pre-charge signal and a clock signal, and outputs a scanning signal via a second node. The first pull-down unit receives the pre-charge signal, first and second pull-down control signals, and controls whether to pull-down the scanning signal to a reference voltage level. The second pull-down unit receives the pre-charge signal and first and second pull-down control signals, and controls whether to keep the scanning signal at the reference voltage level. The period of the first second pull-down control signal and the period of the second pull-down control signal are in a range from 12 frames to 180 frames.Type: GrantFiled: June 30, 2016Date of Patent: November 6, 2018Assignees: HannStar Display (Nanjing) Corporation, HannStar Display CorporationInventors: Tean-Sen Jen, Sung-Chun Lin, Hsuan-Chen Liu, Chien-Ting Chan
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Patent number: 10115910Abstract: An organic electroluminescent material, an organic electroluminescent device, a quantum dot electroluminescent unit, and a quantum dot electroluminescent device are disclosed. The quantum dot electroluminescent unit includes a plurality of electro-phosphorescent quantum dots and at least an organic electroluminescent material, and the electro-phosphorescent quantum dots disperse in the organic electroluminescent material.Type: GrantFiled: April 1, 2016Date of Patent: October 30, 2018Assignees: HANNSTAR DISPLAY (NANJING) CORPORATION, HANNSTAR DISPLAY CORPORATIONInventors: Jau-Jiun Huang, Man-Kit Leung, Yu-Lin Chiang, Jiun-Haw Lee
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Patent number: 10096372Abstract: A shift register and a display apparatus are provided. The shift register includes a pre-charge unit, a pull-up unit, a first pull-down unit and a second pull-down unit. The pre-charge unit receives first and second input signals, and outputs a pre-charge signal via a first node. The pull-up unit receives a pre-charge signal and a clock signal, and outputs a scanning signal via a second node. The first pull-down unit receives the pre-charge signal, first and second pull-down control signals, and controls whether to pull-down the scanning signal to a reference voltage level. The second pull-down unit receives the pre-charge signal, first and second pull-down control signals, and controls whether to keep the scanning signal at the reference voltage level. The duty cycle of the clock signal is less than 50 percent.Type: GrantFiled: June 8, 2016Date of Patent: October 9, 2018Assignees: HannStar Display (Nanjing) Corporation, HannStar Display CorporationInventor: Chien-Ting Chan
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Patent number: 10088715Abstract: The in-cell touch display panel includes the following units. Multiple pixel regions are disposed in areas of the display area enclosed by gate lines that are intersected the data lines, in which each pixel region includes a pixel structure, and each pixel structure includes a pixel electrode. A common electrode includes multiple touch electrodes, in which each touch electrode corresponds to more than one pixel electrodes. A sub-common electrode is a portion of the touch electrode. The data lines and the sub-common electrodes are disposed on the same insulation layer. A metal connection structures is electrically connected to two adjacent ones of the sub-common electrodes along the second direction. The metal connection structure and the data lines are formed by different metal layers.Type: GrantFiled: December 11, 2017Date of Patent: October 2, 2018Assignees: HannStar Display (Nanjing) Corporation, HannStar Display CorporationInventor: Cheng-Yen Yeh
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Patent number: 10078169Abstract: A quantum tube includes a tube body, a plurality of first fluorescent particles and a plurality of second fluorescent particles. The tube body has a light incident surface, a light emitting surface, a top surface and a bottom surface. The top surface is connected between the light incident surface and the light emitting surface. The bottom surface is connected between the light incident surface and the light emitting surface. The top surface is opposite to the bottom surface. The top surface has an inclined portion. The inclined portion inclines with respect to the bottom surface by an angle. The first fluorescent particles are disposed in the tube body. The second fluorescent particles are disposed in the tube body.Type: GrantFiled: March 1, 2016Date of Patent: September 18, 2018Assignees: HannStar Display (Nanjing) Corporation, HANNSTAR DISPLAY CORPORATIONInventors: Chun-Pin Liu, Chin-Wei Lin
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Patent number: 10062315Abstract: The invention provides a gate driving circuit and a display device. The gate driving circuit is configured to drive a display panel of the display device, and includes shift registers and at least a dummy shift register. The shift registers are respectively configured to generate and output scan signals to scan lines of the display panel, the dummy shift register is configured to generate a dummy scan signal before the scan signals are generated. The dummy scan signal and the scan signals are sequentially generated.Type: GrantFiled: November 10, 2016Date of Patent: August 28, 2018Assignee: HannStar Display CorporationInventors: Chien-Ting Chan, Yu-Tuan Hsu, Po-Yi Chen
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Patent number: 10025131Abstract: A touch-sensing liquid crystal panel and a fabrication method thereof are provided. The touch-sensing liquid crystal panel includes a color filter substrate and a transistor substrate. In the fabrication method, at first, a first glass substrate is provided. Thereafter, a sensing matrix is formed on a first surface of the first glass substrate at a baking temperature. The sensing matrix is formed from indium tin oxide (ITO), and a sheet resistance of the sensing matrix is equal to or less than 30 ohm/square. Then, color filters and a common electrode are disposed on a second surface of the first glass substrate to form a color filter substrate, wherein the second surface is opposite to the first surface. Thereafter, the transistor substrate is provided and combined with the color filter substrate. Thereafter, a slimming process is performed to slim a second glass substrate of the transistor substrate.Type: GrantFiled: May 2, 2016Date of Patent: July 17, 2018Assignee: HannStar Display CorporationInventors: Hsu-Ho Wu, Ping-Yuan Su, Yu-Cheng Lin, Hsing-Ying Lee, Kun-Hua Tsai
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Publication number: 20180188601Abstract: A reflective liquid crystal display panel including a plurality of pixel units is provided. Each pixel unit includes first and second substrates, one first signal line, four second signal lines, a liquid crystal layer, a first pixel structure, a second pixel structure, a third pixel structure and a fourth pixel structure. The first and second signal lines are disposed on the first substrate. The first, second, third, and fourth pixel structures are electrically connected to one of the four second signal lines respectively and electrically connected to the first signal line, where the first, second, third, and fourth pixel structures respectively include an active component and a reflective pixel electrode electrically connected to the active component, and a reflection area ratio of the first, second, third, and fourth pixel structures is one of 1:2:4:8 and 2:1:4:8. The second substrate is located opposite to the first substrate.Type: ApplicationFiled: April 24, 2017Publication date: July 5, 2018Applicant: HannStar Display CorporationInventors: Ming-Chang Yu, Cheng-Yen Yeh, Chen-Hao Su