Patents by Inventor Jo-Hsiang CHEN
Jo-Hsiang CHEN 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).
-
Patent number: 11552222Abstract: The display device includes a substrate, a patterned wall, the first, second, third sub-pixels, and an optical layer. The patterned wall is disposed on the substrate and has a plurality of openings. The first sub-pixel is disposed in one of the openings and includes a light-emitting element and a wavelength conversion layer. The second sub-pixel is disposed in one of the openings and includes a light-emitting element and a wavelength conversion layer. The third sub-pixel is disposed in one of the openings and includes a light-emitting element and a wavelength conversion layer, wherein a first distance between a top surface of the light-emitting element and a top surface of the patterned wall is about 10 um to about 100 um. The optical layer is disposed on the patterned wall and in direct contact with at least one of the first sub-pixel, the second sub-pixel, and the third sub-pixel.Type: GrantFiled: May 21, 2020Date of Patent: January 10, 2023Assignee: Lextar Electronics CorporationInventors: Chih-Hao Lin, Hui-Ru Wu, Jo-Hsiang Chen, Jian-Chin Liang, Ai-Sen Liu
-
Publication number: 20220398973Abstract: A display device includes a plurality of sub-pixels. The sub-pixels include a first sub-pixel and a second sub-pixel. The first sub-pixel includes a first light emitting element and a first control circuit. The first control circuit is configured to provide a first driving current to the first light emitting element. The second sub-pixel includes a second light emitting element and a second control circuit. The second control circuit is configured to provide a second driving current to the second light emitting element. The first control circuit and the second control circuit are configured to differently control pulse amplitude of the first driving current and pulse amplitude of the second driving current, such that both of the first light emitting element and the second light emitting element emit at a target wavelength or a color point range (e.g. +/?1.5˜2 nm).Type: ApplicationFiled: August 30, 2021Publication date: December 15, 2022Inventors: Chih-Hao LIN, Chien-Nan YEH, Jo-Hsiang CHEN, Shih-Lun LAI
-
Publication number: 20220271251Abstract: A pixel array package structure includes: a substrate; a pixel array disposed on the substrate, in which the pixel array includes a plurality of light emitting diode chips, and the light emitting diode chips include at least one red diode chip, at least one green diode chip, at least one blue diode chip, and a combination thereof; a reflective layer disposed on the substrate and between any two adjacent of the light emitting diode chips; a light-absorbing layer disposed on the reflective layer and surrounding the pixel array; and a light-transmitting layer disposed on the pixel array, the reflective layer, and the light-absorbing layer, in which the light-transmitting layer has an upper surface and a lower surface opposite thereto, and the lower surface is in contact with the pixel array, and the upper surface has a roughness of 0.005 mm to 0.1 mm.Type: ApplicationFiled: May 15, 2022Publication date: August 25, 2022Inventors: Hui-Ru WU, Jian-Chin LIANG, Jo-Hsiang CHEN, Lung-Kuan LAI, Cheng-Yu TSAI, Hsin-Lun SU, Ting-Kai CHEN
-
Publication number: 20220254973Abstract: A light emitting element package includes a first substrate, at least one light emitting element, an encapsulation layer, and a plurality of conductive pads. The first substrate has an upper surface and a lower surface opposite to each other, in which an edge of the lower surface has a notch. The at least one light emitting element is disposed on the upper surface of the first substrate, in which the light emitting element has a positive electrode and a negative electrode. The encapsulation layer covers the light emitting element. The plurality of conductive pads are disposed on the lower surface of the first substrate and electrically connected to the positive electrode and the negative electrode of the light emitting element, respectively.Type: ApplicationFiled: February 7, 2022Publication date: August 11, 2022Inventors: Chih-Hao LIN, Wei-Yuan MA, Jo-Hsiang CHEN
-
Patent number: 11367849Abstract: A pixel array package structure includes: a substrate; a pixel array disposed on the substrate, in which the pixel array includes a plurality of light emitting diode chips, and the light emitting diode chips include at least one red diode chip, at least one green diode chip, at least one blue diode chip, and a combination thereof; a reflective layer disposed on the substrate and between any two adjacent of the light emitting diode chips; a light-absorbing layer disposed on the reflective layer and surrounding the pixel array; and a light-transmitting layer disposed on the pixel array, the reflective layer, and the light-absorbing layer, in which the light-transmitting layer has an upper surface and a lower surface opposite thereto, and the lower surface is in contact with the pixel array, and the upper surface has a roughness of 0.005 mm to 0.1 mm.Type: GrantFiled: December 25, 2018Date of Patent: June 21, 2022Assignee: Lextar Electronics CorporationInventors: Hui-Ru Wu, Jian-Chin Liang, Jo-Hsiang Chen, Lung-Kuan Lai, Cheng-Yu Tsai, Hsin-Lun Su, Ting-Kai Chen
-
Publication number: 20220190225Abstract: A method for manufacturing a light emitting diode packaging structure includes the operations below. A flexible substrate having a first surface and a second surface is provided. A carrier substrate is formed on the first surface. An adhesive layer is formed on the second surface. A micro light emitting element is formed on the adhesive layer. The micro light emitting element has a conductive pad thereon opposite to the adhesive layer. A redistribution layer is formed and covers the micro light emitting element and the adhesive layer, wherein the redistribution layer includes a circuit layer electrically connecting to the conductive pad and an insulating layer covering the circuit layer. An electrode pad is formed on the redistribution layer and electrically connected to the circuit layer, wherein a total thickness of the flexible substrate, the adhesive layer, the redistribution layer, and the electrode pad is less than 200 um.Type: ApplicationFiled: March 3, 2022Publication date: June 16, 2022Inventors: Chih-Hao LIN, Jo-Hsiang CHEN, Shih-Lun LAI, Min-Che TSAI, Jian-Chin LIANG
-
Patent number: 11296269Abstract: The light emitting diode packaging structure includes a flexible substrate, a first adhesive layer, a micro light emitting element, a conductive pad, a redistribution layer, and an electrode pad. The first adhesive layer is disposed on the flexible substrate. The micro light emitting element is disposed on the first adhesive layer. The micro light emitting element has a first surface facing to the first adhesive layer and a second surface opposite to the first surface. The conductive pad is disposed on the second surface of the micro light emitting element. The redistribution layer covers the micro light emitting element and the conductive pad. The electrode pad is disposed on the redistribution layer and is electrically connected to the circuit layer. A total thickness of the flexible substrate, the first adhesive layer, the redistribution layer, and the electrode pad is less than 200 um.Type: GrantFiled: July 30, 2020Date of Patent: April 5, 2022Assignee: Lextar Electronics CorporationInventors: Chih-Hao Lin, Jo-Hsiang Chen, Shih-Lun Lai, Min-Che Tsai, Jian-Chin Liang
-
Publication number: 20220093577Abstract: Disclosed is a light-emitting array structure having a substrate, a plurality of light-emitting pixel units, a plurality of first signal wires, a plurality of second signal wires, and an encapsulating layer. The light-emitting pixel units are arranged in array on the substrate. Each light-emitting pixel unit includes a driving chip, a first flat layer, a first redistribution layer, a second flat layer, a second redistribution layer, and a light-emitting diode. Each first signal wire is electrically connected to a corresponding one of the first redistribution layers and extends in a first direction. The second signal wires extend in a level different from the first signal wires. Each second signal wire is electrically connected to a corresponding one of the second redistribution layers and extends in a second direction different from the first direction. The encapsulating layer covers the light-emitting pixel units, the first and second signal wires, and the substrate.Type: ApplicationFiled: November 22, 2020Publication date: March 24, 2022Inventors: Chih-Hao LIN, Jian-Chin LIANG, Chien-Nan YEH, Shih-Lun LAI, Jo-Hsiang CHEN
-
Publication number: 20220093578Abstract: Disclosed is a light-emitting array structure having a substrate, a plurality of light-emitting pixel units, a plurality of first and second signal wires, and an encapsulating layer. The light-emitting pixel units are arranged in array on the substrate. Each light-emitting pixel unit includes a driving chip, a first flat layer, a first redistribution layer, a second flat layer, a second redistribution layer, and a light-emitting diode. Each first signal wire is electrically connected to a corresponding one of the first redistribution layers and extends in a first direction. The second signal wires extend in a level different from the first signal wires. Each second signal wire is electrically connected to a corresponding one of the second redistribution layers and extends in a second direction different from the first direction. The encapsulating layer covers the light-emitting pixel units, the first and second signal wires, and the substrate.Type: ApplicationFiled: May 6, 2021Publication date: March 24, 2022Inventors: Chih-Hao LIN, Jian-Chin LIANG, Chien-Nan YEH, Shih-Lun LAI, Jo-Hsiang CHEN
-
Publication number: 20220037569Abstract: The light emitting diode packaging structure includes a flexible substrate, a first adhesive layer, a micro light emitting element, a conductive pad, a redistribution layer, and an electrode pad. The first adhesive layer is disposed on the flexible substrate. The micro light emitting element is disposed on the first adhesive layer. The micro light emitting element has a first surface facing to the first adhesive layer and a second surface opposite to the first surface. The conductive pad is disposed on the second surface of the micro light emitting element. The redistribution layer covers the micro light emitting element and the conductive pad. The electrode pad is disposed on the redistribution layer and is electrically connected to the circuit layer. A total thickness of the flexible substrate, the first adhesive layer, the redistribution layer, and the electrode pad is less than 200 um.Type: ApplicationFiled: July 30, 2020Publication date: February 3, 2022Inventors: Chih-Hao LIN, Jo-Hsiang CHEN, Shih-Lun LAI, Min-Che TSAI, Jian-Chin LIANG
-
Publication number: 20220037571Abstract: A light emitting diode device includes a substrate, a conductive via, first and second conductive pads, a driving chip, a flat layer, a redistribution layer, a light emitting diode, and an encapsulating layer. The substrate has a first surface and a second surface opposite thereto. The conductive via penetrates from the first surface to the second surface. The first and second conductive pads are respectively disposed on the first and second surface and in contact with the conductive via. The driving chip is disposed on the first surface. The flat layer is disposed over the first surface and covers the driving chip and the first conductive pad. The redistribution layer is disposed on the flat layer and electrically connects to the driving chip. The light emitting diode is flip-chip bonded to the redistribution layer. The encapsulating layer covers the redistribution layer and the light emitting diode.Type: ApplicationFiled: July 22, 2021Publication date: February 3, 2022Inventors: Chih-Hao LIN, Jian-Chin LIANG, Shih-Lun LAI, Jo-Hsiang CHEN
-
Publication number: 20210367113Abstract: The display device includes a substrate, a patterned wall, the first, second, third sub-pixels, and an optical layer. The patterned wall is disposed on the substrate and has a plurality of openings. The first sub-pixel is disposed in one of the openings and includes a light-emitting element and a wavelength conversion layer. The second sub-pixel is disposed in one of the openings and includes a light-emitting element and a wavelength conversion layer. The third sub-pixel is disposed in one of the openings and includes a light-emitting element and a wavelength conversion layer, wherein a first distance between a top surface of the light-emitting element and a top surface of the patterned wall is about 10 um to about 100 um. The optical layer is disposed on the patterned wall and in direct contact with at least one of the first sub-pixel, the second sub-pixel, and the third sub-pixel.Type: ApplicationFiled: May 21, 2020Publication date: November 25, 2021Inventors: Chih-Hao LIN, Hui-Ru WU, Jo-Hsiang CHEN, Jian-Chin LIANG, Ai-Sen LIU
-
Publication number: 20210328120Abstract: A light-emitting device includes a micro light-emitting diode chip (micro LED chip), a first electrical connecting layer, a second electrical connecting layer and a housing layer. The micro LED chip includes a light exit surface, a bottom surface opposite to the light exit surface and first and second electrodes located on the bottom surface. The first and second electrical connecting layers respectively connect to the first and second electrodes and extend along two opposite sidewalls to two sides of a perimeter of the light exit surface. The housing layer encloses the micro LED chip and the first and second electrical connecting layer. The light exit surface of the micro LED chip and top surfaces of the first and second electrical connecting layers are not enclosed by the housing layer.Type: ApplicationFiled: October 23, 2020Publication date: October 21, 2021Inventors: Shiou-Yi KUO, Jian-Chin LIANG, Jo-Hsiang CHEN, Chih-Hao LIN
-
Patent number: 10811396Abstract: A display device includes a substrate, a light-emitting member, and an anti-reflective glass layer. The light-emitting member is on the substrate. The anti-reflective glass layer is over the light-emitting member, and the anti-reflective glass layer has a transmittance of 40-95%. The anti-reflective glass layer includes a glass layer and a light-absorbing layer. The glass layer has a rough top surface and a haze of 70-80%. The light-absorbing layer is on the rough top surface of glass layer.Type: GrantFiled: January 20, 2019Date of Patent: October 20, 2020Assignee: Lextar Electronics CorporationInventors: Cheng-Yu Tsai, Jian-Chin Liang, Jo-Hsiang Chen
-
Publication number: 20200287104Abstract: A package includes a substrate and a plurality of light-emitting chips. The substrate has a top surface. The light-emitting chips are disposed on the top surface of the substrate, in which a sum of the vertical projection areas of the light-emitting chips on the top surface of the substrate is less than 5% of an area of the top surface of the substrate.Type: ApplicationFiled: March 4, 2020Publication date: September 10, 2020Inventors: Shiou-Yi KUO, Jian-Chin LIANG, Yu-Chun LEE, Fu-Hsin CHEN, Jo-Hsiang CHEN, Chien-Nan YEH
-
Publication number: 20200235075Abstract: A display device includes a substrate, a light-emitting member, and an anti-reflective glass layer. The light-emitting member is on the substrate. The anti-reflective glass layer is over the light-emitting member, and the anti-reflective glass layer has a transmittance of 40-95%. The anti-reflective glass layer includes a glass layer and a light-absorbing layer. The glass layer has a rough top surface and a haze of 70-80%. The light-absorbing layer is on the rough top surface of glass layer.Type: ApplicationFiled: January 20, 2019Publication date: July 23, 2020Inventors: Cheng-Yu TSAI, Jian-Chin LIANG, Jo-Hsiang CHEN
-
Publication number: 20200067009Abstract: A pixel array package structure includes: a substrate; a pixel array disposed on the substrate, in which the pixel array includes a plurality of light emitting diode chips, and the light emitting diode chips include at least one red diode chip, at least one green diode chip, at least one blue diode chip, and a combination thereof; a reflective layer disposed on the substrate and between any two adjacent of the light emitting diode chips; a light-absorbing layer disposed on the reflective layer and surrounding the pixel array; and a light-transmitting layer disposed on the pixel array, the reflective layer, and the light-absorbing layer, in which the light-transmitting layer has an upper surface and a lower surface opposite thereto, and the lower surface is in contact with the pixel array, and the upper surface has a roughness of 0.005 mm to 0.1 mm.Type: ApplicationFiled: December 25, 2018Publication date: February 27, 2020Inventors: Hui-Ru WU, Jian-Chin LIANG, Jo-Hsiang CHEN, Lung-Kuan LAI, Cheng-Yu TSAI, Hsin-Lun SU, Ting-Kai CHEN
-
Patent number: 10386629Abstract: A light-enhancement device includes a wavelength conversion member and a wavelength controlling element. The wavelength conversion member includes a light-transmissive substrate and wavelength conversion material which is disposed within the light-transmissive substrate for converting a portion of light with a first wavelength into another light with a second wavelength. The wavelength controlling element is disposed on a surface of the light-transmissive substrate for reflecting another portion of the light with the first wavelength into the light-transmissive substrate and enabling the portion of the light with the second wavelength to pass through the wavelength controlling element. A roughness of the surface of the light-transmissive substrate facing towards the wavelength controlling element is configured to be 0-1 ?m.Type: GrantFiled: October 10, 2017Date of Patent: August 20, 2019Assignee: LEXTAR ELECTRONICS CORPORATIONInventors: Chih-Hao Lin, Hui-Ru Wu, Jo-Hsiang Chen, Tzong-Liang Tsai
-
Publication number: 20180106994Abstract: A light-enhancement device includes a wavelength conversion member and a wavelength controlling element. The wavelength conversion member includes a light-transmissive substrate and wavelength conversion material which is disposed within the light-transmissive substrate for converting a portion of light with a first wavelength into another light with a second wavelength. The wavelength controlling element is disposed on a surface of the light-transmissive substrate for reflecting another portion of the light with the first wavelength into the light-transmissive substrate and enabling the portion of the light with the second wavelength to pass through the wavelength controlling element. A roughness of the surface of the light-transmissive substrate facing towards the wavelength controlling element is configured to be 0-1 ?m.Type: ApplicationFiled: October 10, 2017Publication date: April 19, 2018Inventors: Chih-Hao LIN, Hui-Ru WU, Jo-Hsiang CHEN, Tzong-Liang TSAI
-
Patent number: 9732940Abstract: A lighting apparatus includes a wavelength converting apparatus. The wavelength converting apparatus includes a hollow tube and a wavelength converting material. The hollow tube has an accommodating chamber. The wavelength converting material is positioned in the accommodating chamber.Type: GrantFiled: July 22, 2014Date of Patent: August 15, 2017Assignee: LEXTAR ELECTRONICS CORPORATIONInventors: Kuang-Neng Yang, Kun-Hua Wu, Jo-Hsiang Chen, Tai-Hua Ho, Tzong-Liang Tsai, Chih-Hao Lin