Patents by Inventor Yu-Chu Li
Yu-Chu Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20210175391Abstract: A micro semiconductor device and a micro semiconductor display are provided. The micro semiconductor device includes an epitaxial structure, a first electrode, a second electrode and a supporting layer. The epitaxial structure has a bottom surface and a top surface, wherein the bottom surface is defined as a central region and a peripheral region. A first electrode and a second electrode are disposed on the central region of the bottom surface of the epitaxial structure, or the first electrode is disposed on the central region of the bottom surface of the epitaxial structure and the second electrode is disposed on the top surface of the epitaxial structure. The supporting layer is disposed on the peripheral region of the bottom surface of the epitaxial structure.Type: ApplicationFiled: February 19, 2021Publication date: June 10, 2021Applicant: PlayNitride Display Co., Ltd.Inventors: Ying-Tsang Liu, Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Yu-Chu Li, Tzu-Yang Lin, Yu-Hung Lai
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Publication number: 20210151341Abstract: Herein disclosed are a micro-component transfer head, a micro-component transfer device, and a micro-component display. Said micro-component transfer head comprises a carrying surface that corresponds to a micro-component extraction area. Said extraction area conforms with a first geometric object, which comprises at least an acute angle. A second geometric object comprises at least a right angle and is constituted of n copies of the first geometric object, n being an integer greater than 1. The shape of the first geometric object differs from that of the second.Type: ApplicationFiled: May 14, 2020Publication date: May 20, 2021Inventors: Yu-Chu LI, Pei-Hsin CHEN, Yi-Chun SHIH, Yi-Ching CHEN
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Publication number: 20210135054Abstract: An electrode structure includes a first electrode and a second electrode disposed opposite to each other. The first electrode has a first side and a second side. The second side is located between the first side and the second electrode. The first electrode has a maximum vertical length and a minimum vertical length from the first side to the second side, and a ratio of the minimum vertical length to the maximum vertical length is less than 0.8. The second electrode and the first electrode are separated by a first vertical gap and a second vertical gap, and the second vertical gap is greater than the first vertical gap.Type: ApplicationFiled: November 20, 2019Publication date: May 6, 2021Applicant: PlayNitride Display Co., Ltd.Inventors: Yu-Chu Li, Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen
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Publication number: 20210126048Abstract: A micro LED display panel includes a display area, a plurality of micro light-emitting elements and a plurality of micro control elements. The plurality of micro light-emitting elements is disposed in the display area and include a plurality of first color micro LEDs and a plurality of second color micro LEDs. A light wavelength of each of the first color micro LEDs is different from a light wavelength of each of the second color micro LEDs. The plurality of micro control elements is disposed in the display area, and include a plurality of first color micro circuit-chips and a plurality of second color micro circuit-chips. The plurality of first color micro circuit-chips control the plurality of first color micro LEDs, and the plurality of second color micro circuit-chips control the plurality of second color micro LEDs.Type: ApplicationFiled: January 7, 2021Publication date: April 29, 2021Applicant: PlayNitride Display Co., Ltd.Inventors: Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Ying-Tsang Liu, Yu-Chu Li, Tzu-Yang Lin, Yu-Hung Lai
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Publication number: 20210119080Abstract: A micro light emitting diode chip includes a light emitting layer, a first type semiconductor layer, and a second type semiconductor layer. The light emitting layer includes a metal element and a plurality of non-epitaxial media. The non-epitaxial media are separated from each other to disperse the metal element. A spacing between any two adjacent non-epitaxial media is less than 100 nanometers. The first type semiconductor layer is disposed on one side of the light emitting layer. The second type semiconductor layer is disposed on the other side of the light emitting layer.Type: ApplicationFiled: December 30, 2019Publication date: April 22, 2021Applicant: PlayNitride Display Co., Ltd.Inventors: Yi-Ching Chen, Yu-Chu Li
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Publication number: 20210097929Abstract: A micro light emitting diode display panel including a plurality of pixels and a control element is provided. One of the pixels include a first sub-pixel. The first sub-pixel includes two micro light emitting diodes having different light wavelengths and controlled independently. The control element controls driving currents to the two micro light emitting diodes according to a gray level of the first sub-pixel, wherein a ratio of the driving current of the micro light emitting diode with larger light wavelength to the driving current of the micro light emitting diode with smaller light wavelength increases as the gray level of the first sub-pixel increases. A driving method of the micro light emitting diode display panel is also provided.Type: ApplicationFiled: August 10, 2020Publication date: April 1, 2021Applicant: PlayNitride Inc.Inventor: Yu-Chu Li
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Patent number: 10937826Abstract: A micro semiconductor structure is provided. The micro semiconductor structure includes a substrate, at least one supporting layer, and at least one micro semiconductor device. The supporting layer includes at least one upper portion and a bottom portion, wherein the upper portion extends in a first direction. The length L1 of the upper portion in the first direction is greater than the length L2 of the bottom portion in the first direction. Furthermore, the bottom surface of the micro semiconductor device is in direct contact with the upper portion of the supporting layer.Type: GrantFiled: June 10, 2019Date of Patent: March 2, 2021Assignee: PLAYNITIRIDE DISPLAY CO., LTD.Inventors: Ying-Tsang Liu, Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Yu-Chu Li, Huan-Pu Chang, Tzu-Yang Lin, Yu-Hung Lai
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Patent number: 10930202Abstract: A display apparatus includes a driving substrate and a plurality of micro light-emitting devices (LEDs). The driving substrate has a plurality of pixel regions. The plurality micro LEDs are disposed in in each of the pixel regions and electrically connected to the driving substrate. Orthogonal projection areas of the micro LEDs in each of the pixel regions on the driving substrate are equal. At least two micro LEDs in each of the pixel regions have different effective light-emitting areas.Type: GrantFiled: June 4, 2019Date of Patent: February 23, 2021Assignee: PlayNitride Display Co., Ltd.Inventors: Tzu-Yang Lin, Mi-Hung Lai, Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Yu-Chu Li, Ying-Tsang Liu
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Publication number: 20210050481Abstract: A light-emitting device includes an epitaxial structure, and first and second electrodes. The epitaxial structure has a first surface and a second surface opposite to each other, first dislocation density regions and second dislocation density regions. The first dislocation density regions and the second dislocation density regions are alternately disposed between the first surface and the second surface. A dislocation density of each first dislocation density region is lower than a dislocation density of each second dislocation density region and a quantity of the first dislocation density regions is at least ten. The epitaxial structure further includes a light-emitting layer, a first-type semiconductor layer and a second-type semiconductor layer disposed on two opposite sides of the light-emitting layer. The first electrode and the second electrode are electrically connected to the first-type semiconductor layer and the second-type semiconductor layer, respectively.Type: ApplicationFiled: October 20, 2019Publication date: February 18, 2021Applicant: PlayNitride Display Co., Ltd.Inventor: Yu-Chu Li
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Patent number: 10923527Abstract: A micro LED display panel includes a display area, a plurality of micro light-emitting elements and a plurality of micro control elements. The plurality of micro light-emitting elements is disposed in the display area and include a plurality of first color micro LEDs and a plurality of second color micro LEDs. A light wavelength of each of the first color micro LEDs is different from a light wavelength of each of the second color micro LEDs. The plurality of micro control elements is disposed in the display area, and include a plurality of first color micro circuit-chips and a plurality of second color micro circuit-chips. The plurality of first color micro circuit-chips control the plurality of first color micro LEDs, and the plurality of second color micro circuit-chips control the plurality of second color micro LEDs.Type: GrantFiled: December 4, 2018Date of Patent: February 16, 2021Assignee: PixeLED Display CO., LTD.Inventors: Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Ying-Tsang Liu, Yu-Chu Li, Tzu-Yang Lin, Yu-Hung Lai
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Patent number: 10916682Abstract: A micro light-emitting device includes an epitaxial structure, a first type pad, a current commanding structure and an insulating layer. The epitaxial structure includes a first type semiconductor layer, a light-emitting layer and a second type semiconductor layer. The first type pad is disposed on the epitaxial structure and electrically connected to the first type semiconductor layer. The current commanding structure is disposed on the epitaxial structure and electrically connected to the second type semiconductor layer. An orthogonal projection area of the current commanding structure on the second type semiconductor layer is smaller than a surface area of a surface of the second type semiconductor layer. The insulating layer contacts a portion of the current commanding structure and a portion of the surface of the second type semiconductor layer. The insulating layer has an opening exposing at least a portion of the portion of the current commanding structure.Type: GrantFiled: October 21, 2019Date of Patent: February 9, 2021Assignee: PlayNitride Inc.Inventors: Yun-Li Li, Yu-Chu Li, Pei-Hsin Chen
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Patent number: 10879306Abstract: A micro semiconductor structure is provided. The micro semiconductor structure includes a substrate, a plurality of micro semiconductor devices disposed on the substrate, and a first supporting layer disposed between the substrate and the micro semiconductor devices. Each of the micro semiconductor devices has a first electrode and a second electrode disposed on a lower surface of the micro semiconductor devices. The lower surface includes a region, wherein the region is between the first electrode and the second electrode. An orthographic projection of the first supporting layer on the substrate at least overlaps an orthographic projection of a portion of the region on the substrate. The first supporting layer directly contacts the region.Type: GrantFiled: June 7, 2019Date of Patent: December 29, 2020Assignee: PLAYNITRIDE DISPLAY CO., LTD.Inventors: Chih-Ling Wu, Ying-Tsang Liu, Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Yu-Chu Li, Huan-Pu Chang, Yu-Yun Lo, Yi-Min Su, Tzu-Yang Lin, Yu-Hung Lai
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Publication number: 20200388599Abstract: A display panel includes a first substrate, a plurality of first color micro light emitting diodes (LEDs), a plurality of second color LEDs and a shading layer. The first substrate has a plurality of pixel zones arranged in an array form. Each of the first color LEDs has a first light emitting surface facing to a display direction. Each of the second color LEDs has a second light emitting surface facing to the display direction. Each of the pixel zones is provided with one of the first color micro LEDs and one of the second color LEDs. The shading layer is disposed in the pixel zones. The shading layer overlaps part of the first light emitting surface and part of the second light emitting surface in the display direction.Type: ApplicationFiled: August 24, 2020Publication date: December 10, 2020Applicant: PlayNitride Inc.Inventors: Pei-Hsin Chen, Yi-Ching Chen, Yi-Chun Shih, Yu-Chu Li, Ying-Tsang Liu, Chih-Chiang Lu, Gwo-Jiun Sheu, Po-Jen Su
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Publication number: 20200373282Abstract: A micro-LED display panel including a substrate, an anisotropic conductive film, and a plurality of micro-LEDs is provided. The anisotropic conductive film is disposed on the substrate. The micro-LEDs and the anisotropic conductive film are disposed at the same side of the substrate, and the micro-LEDs are electrically connected to the substrate through the anisotropic conductive film. Each of the micro-LEDs includes an epitaxial layer and an electrode layer electrically connected to the epitaxial layer, and the electrode layers comprises a first electrode and a second electrode which are located between the substrate and the corresponding epitaxial layer. A ratio of a thickness of each of the electrode layers to a thickness of the corresponding epitaxial layer ranges from 0.1 to 0.5, and a gap between the first electrode and the second electrode of each of the micro-LEDs is in a range of 1 ?m to 30 ?m.Type: ApplicationFiled: August 11, 2020Publication date: November 26, 2020Applicant: PlayNitride Inc.Inventors: Ying-Tsang Liu, Yu-Chu Li, Pei-Hsin Chen, Yi-Ching Chen
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Patent number: 10847694Abstract: A display substrate comprises a base board and a first bonding pad. The base board comprises a first surface having a first bonding district. The first bonding pad is disposed on the first surface. The first bonding pad is configured to electrically connect to a first electrode of a light emitting component in the first bonding district. The first bonding pad comprises a main bonding portion and an auxiliary bonding portion, wherein at least a part of an orthogonal projection of the main bonding portion on the base board is in the first bonding district. The auxiliary bonding portion electrically connects to the main bonding portion, wherein at least a part of an orthogonal projection of the auxiliary bonding portion on the base board is outside the first bonding district. There is a gap between the main bonding portion and the auxiliary bonding portion.Type: GrantFiled: June 29, 2018Date of Patent: November 24, 2020Assignee: PLAYNITRIDE INC.Inventors: Yu-Chu Li, Pei-Hsin Chen, Yi-Chun Shih, Yi-Ching Chen, Ying-Tsang Liu
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Patent number: 10832610Abstract: A display panel of micro light emitting diode comprises a substrate, a plurality of micro light emitting diodes, a plurality of driving chips and a shading layer. The substrate having a first surface and a display area. The plurality of micro light emitting diodes is disposed on the first surface of the substrate and is located in the display area, with each of the micro light emitting diodes having a light emitting surface while the light emitting surface is away from the first surface of the substrate. The plurality of driving chips is disposed on the first surface of the substrate and is located in the display area, with each driving chip electrically connecting to at least one of the micro light emitting diodes. The shading layer is disposed on the first surface of the substrate and covering the driving chips while exposing the light emitting surfaces.Type: GrantFiled: April 18, 2019Date of Patent: November 10, 2020Assignee: PLAYNITRIDE INC.Inventors: Pei-Hsin Chen, Yi-Ching Chen, Yi-Chun Shih, Yu-Chu Li, Ying-Tsang Liu
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Patent number: 10790331Abstract: A display panel comprises a first substrate and a shading layer. The first substrate comprises a plurality of pixel zones arranging in an array form. Each of the pixel zones comprises a first color LED and a second color LED. The first color LED comprise a first light-emitting surface in a display direction. The second color LED comprise a second light-emitting surface in the display direction. An area of the first light-emitting surface is larger than an area of the second light-emitting surface. The shading layer is disposed in the plurality of pixel zones, and the shading layer overlaps some of the first light-emitting surfaces at the display direction.Type: GrantFiled: July 18, 2019Date of Patent: September 29, 2020Assignee: PlayNitride Inc.Inventors: Pei-Hsin Chen, Yi-Ching Chen, Yi-Chun Shih, Yu-Chu Li, Ying-Tsang Liu
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Patent number: 10777123Abstract: A micro light emitting diode display panel including a plurality of pixels and a control element is provided. One of the pixels include a first sub-pixel. The first sub-pixel includes two micro light emitting diodes having different light wavelengths and controlled independently. The control element controls driving currents to the two micro light emitting diodes according to a gray level of the first sub-pixel, wherein a ratio of the driving current of the micro light emitting diode with larger light wavelength to the driving current of the micro light emitting diode with smaller light wavelength increases as the gray level of the first sub-pixel increases. A driving method of the micro light emitting diode display panel is also provided.Type: GrantFiled: September 5, 2018Date of Patent: September 15, 2020Assignee: PlayNitride Inc.Inventor: Yu-Chu Li
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Patent number: 10777541Abstract: A micro-LED display panel including a substrate, an anisotropic conductive film, and a plurality of micro-LEDs is provided. The anisotropic conductive film is disposed on the substrate. The micro-LEDs and the anisotropic conductive film are disposed at the same side of the substrate, and the micro-LEDs are electrically connected to the substrate through the anisotropic conductive film. Each of the micro-LEDs includes an epitaxial layer and an electrode layer electrically connected to the epitaxial layer, and the electrode layers comprises a first electrode and a second electrode which are located between the substrate and the corresponding epitaxial layer. A ratio of a thickness of each of the electrode layers to a thickness of the corresponding epitaxial layer ranges from 0.1 to 0.5, and a gap between the first electrode and the second electrode of each of the micro-LEDs is in a range of 1 ?m to 30 ?m.Type: GrantFiled: October 19, 2018Date of Patent: September 15, 2020Assignee: PlayNitride Inc.Inventors: Ying-Tsang Liu, Yu-Chu Li, Pei-Hsin Chen, Yi-Ching Chen
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Patent number: 10763302Abstract: A display panel and a repairing method thereof. The display panel includes micro LEDs and a circuit substrate. The circuit substrate includes first wires, second wires and connecting circuits. Respective one of the connecting circuits is configured to be electrically connected to respective one of the micro LEDs. Each of the connecting circuits includes a first pad, a second pad, a third pad and a connecting wire. The first pad is configured to be electrically connected to the corresponding micro LED and one of the first wires. The first and second pads are separated by a first gap. The second pad is configured to be electrically connected to one of the second wires. The second and third pads are separated by a second gap. The connecting wire is connected to the second pad and the third pad.Type: GrantFiled: November 15, 2018Date of Patent: September 1, 2020Assignee: PLAYNITRIDE INC.Inventors: Kuan-Yung Liao, Yun-Li Li, Yu-Chu Li, Chih-Ling Wu, Ching-Liang Lin, Pai-Yang Tsai