Patents Assigned to Hannstar Display Corporation
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Patent number: 10466559Abstract: A pixel structure includes a first substrate, a thin-film transistor, a second insulation layer, a first transparent conduction layer and a second substrate. The thin-film transistor includes a gate electrode formed on the first substrate, a semiconductor layer formed on the gate electrode, a first insulation layer located between the semiconductor layer and the gate electrode, and an electrode layer including a source electrode and a drain electrode. The source electrode covers a portion of the semiconductor layer. The drain electrode covers a portion of the semiconductor layer. The second insulation layer covers the thin-film transistor. The first transparent conduction layer is formed on the second insulation layer. An opening is formed in the first transparent conduction layer along a fringe of the semiconductor layer.Type: GrantFiled: September 28, 2017Date of Patent: November 5, 2019Assignee: HANNSTAR DISPLAY CORPORATIONInventors: Hsuan-Chen Liu, Chung-Lin Chang
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Patent number: 10453409Abstract: The present invention provides a driving circuit and a display device. The driving circuit is disposed on a substrate of the display device. The driving circuit includes thin film transistors (TFTs), a capacitor and clock signal lines. Each of the TFTs includes a gate, a source and a drain. The capacitor is coupled to at least one of the TFTs, and includes a first and a second electrode. The material of the first and the second electrode includes a transparent conductive material. The clock signal lines extend along a first direction. The source and the drain of at least two of the TFTs respectively extend along a second direction. The angle between the first direction and the second direction is between 80 degrees and 100 degrees. At least a partial structure of the capacitor is located in a gap between adjacent ones of the TFTs.Type: GrantFiled: August 15, 2016Date of Patent: October 22, 2019Assignee: HannStar Display CorporationInventors: Tean-Sen Jen, Sung-Chun Lin, Hsuan-Chen Liu, Chien-Ting Chan
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Patent number: 10431552Abstract: In a display panel, multiple first alignment patterns are disposed in a non-display area on a first substrate, and each first alignment pattern includes a first portion and a second portion connected to each other. Multiple second alignment patterns are disposed in the non-display area on a second substrate, and each of the second alignment patterns includes a third portion and a fourth portion. There is a first length difference between the length of each first portion along a first direction and the length of the corresponding third portion along the first direction, and the first length differences are different from each other. There is a second length difference between the length of each second portion along a second direction and the length of the corresponding fourth portion along the second direction, and the second length differences are different from each other.Type: GrantFiled: October 9, 2018Date of Patent: October 1, 2019Assignee: HannStar Display CorporationInventors: Chung-Lin Chang, Hsuan-Chen Liu
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Patent number: 10416805Abstract: A touch display apparatus including a display panel and multiple touch electrodes disposed on the display panel is provided. The display panel has a plurality of pixel regions. Each of the pixel regions is arranged with a first pixel pitch Ppx along a first direction. Each of the pixel regions is arranged with a second pixel pitch Ppy along a second direction. Each touch electrode has a plurality of touch patterns. Each of the touch patterns is arranged with a first touch pitch Ptx along the first direction. Each of the touch patterns includes a plurality of bent segments connected to each other. Each of the bent segments is arranged with a second touch pitch Pty along the second direction. The first pixel pitch Ppx, the second pixel pitch Ppy, the first touch pitch Ptx and the second touch pitch Pty satisfy at least one of the following equations (1) and (2): 30 ? % ? ? P tx - P px ? P px ? 50 ? % , equation ? ? ( 1 ) 3 ? P ty P py ? 12.Type: GrantFiled: October 14, 2016Date of Patent: September 17, 2019Assignee: HannStar Display CorporationInventors: Cheng-Yen Yeh, Yu-Chen Liu, Hsing-Ying Lee, Yu-Cheng Lin
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Patent number: 10416798Abstract: 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: GrantFiled: December 6, 2017Date of Patent: September 17, 2019Assignee: HannStar Display CorporationInventor: Heng-Cheng Tseng
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Patent number: 10403382Abstract: The invention provides a gate driving circuit and a display apparatus. The gate driving circuit includes 1st to Nth stage shift registers for respectively generating and sequentially outputting 1st to Nth stage scan signals to the display panel, where N is an integer greater than or equal to 4. Each of the shift registers is configured to receive a starting signal, and the starting signal is utilized to trigger the 1st and 2nd stage shift registers to generate the 1st and 2nd stage scan signals respectively, and the starting signal is utilized to reset the 3rd to Nth stage shift registers.Type: GrantFiled: November 15, 2016Date of Patent: September 3, 2019Assignee: HannStar Display CorporationInventors: Sung-Chun Lin, Chien-Ting Chan, Yu-Tuan Hsu, Po-Yi Chen, Hsien-Tang Hu, Hsuan-Chen Liu
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Patent number: 10379274Abstract: A color filter and a display panel, wherein the color filter includes a color correction material. In an absorption spectrum of the color correction material, a wavelength interval of the absorption spectrum with a visible light absorption rate smaller than 0.2 is from 150 to 180 nanometers.Type: GrantFiled: December 21, 2016Date of Patent: August 13, 2019Assignee: HANNSTAR DISPLAY CORPORATIONInventor: Jiun-Haw Lee
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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