Patents by Inventor Che-Wen Chiang
Che-Wen Chiang 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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Patent number: 11860506Abstract: A virtual reality display system of reduced size and depth but with a point of focus electronically changeable to suit different human eyes includes a display device and a focusing structure. The display device emits light for images, the focusing structure on the light path includes a first electrode layer, a second electrode layer, and a first liquid crystal layer between the first electrode layer and the second electrode layer, these two electrode layers receiving different voltages. The first liquid crystal layer is configured to converge the image light as necessary for the viewer and enlarge images as desired by the viewer. The image light after being focused displays a virtual reality image.Type: GrantFiled: August 18, 2022Date of Patent: January 2, 2024Assignees: Interface Technology (ChengDu) Co., Ltd., INTERFACE OPTOELECTRONICS (SHENZHEN) CO., LTD., INTERFACE OPTOELECTRONICS (WUXI) CO., LTD., GENERAL INTERFACE SOLUTION LIMITEDInventors: Po-Lun Chen, Yun-Pei Chen, Che-Wen Chiang, Wei-Hung Tsay
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Publication number: 20230408870Abstract: A virtual reality display includes a display module and an optical module. The display module includes a display, a liquid crystal cell, a first phase retarder, and a polarizing directional lens. The optical module includes a transflective lens, a second phase retarder, a reflective polarizer, and a lens element. The liquid crystal cell is located between the display and the first phase retarder, and the polarizing directional lens is located between the first phase retarder and the transflective lens. The transflective lens is located between the polarizing directional lens and the second phase retarder, and the reflective polarizer is located between the second phase retarder and the lens element.Type: ApplicationFiled: April 21, 2023Publication date: December 21, 2023Applicant: HTC CorporationInventors: Che-Wen Chiang, Po-Sen Yang
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Patent number: 11829013Abstract: An optical environment oscillation detection system and an optical measurement method using the same are provided. This system includes a laser light source, a polarizer, a liquid crystal (LC) element, an analyzer, and an optical sensor arranged in sequence. A polarization axis of the polarizer and that of the analyzer are respectively parallel to a first and a second axis direction being perpendicular to each other. When there is no environmental disturbance, the alignment of LC cells in the LC element has an original pretilt angle, and the optical sensor senses a first scattered light intensity of the laser beam outputted from the analyzer. When there is environmental disturbance, the alignment of the LC cells has a changed pretilt angle in relative to the original pretilt angle, and the optical sensor senses a second scattered light intensity of the laser beam outputted from the analyzer.Type: GrantFiled: February 26, 2021Date of Patent: November 28, 2023Assignees: Interface Technology (Chengdu) Co., Ltd., Interface Optoelectronics (Shenzhen) Co., Ltd., Interface Optoelectronics (Wuxi) Co., Ltd., General Interface Solution LimitedInventor: Che Wen Chiang
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Publication number: 20230350267Abstract: A virtual reality display system of reduced size and depth but with a point of focus electronically changeable to suit different human eyes includes a display device and a focusing structure. The display device emits light for images, the focusing structure on the light path includes a first electrode layer, a second electrode layer, and a first liquid crystal layer between the first electrode layer and the second electrode layer, these two electrode layers receiving different voltages. The first liquid crystal layer is configured to converge the image light as necessary for the viewer and enlarge images as desired by the viewer. The image light after being focused displays a virtual reality image.Type: ApplicationFiled: August 18, 2022Publication date: November 2, 2023Inventors: PO-LUN CHEN, YUN-PEI CHEN, CHE-WEN CHIANG, WEI-HUNG TSAY
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Patent number: 11764340Abstract: A micro light emitting diode (LED) display device includes a substrate, micro LED dies, a protection layer, and a funnel-tube structure array. The micro LED dies are located on the substrate. The protection layer covers the micro LED dies and the substrate. The funnel-tube structure array is located on the protection layer and includes funnel-tube structures. Each of the funnel-tube structures has a top surface facing away from the protection layer. The funnel-tube structures respectively overlap the micro LED dies in a vertical direction, and widths of the funnel-tube structures are gradually increased from the protection layer to the top surfaces of the funnel-tube structures.Type: GrantFiled: March 23, 2021Date of Patent: September 19, 2023Assignees: Interface Technology (ChengDu) Co., Ltd., Interface Optoelectronics (ShenZhen) Co., Ltd., Interface Optoelectronics (Wuxi) Co., Ltd., General Interface Solution LimitedInventor: Che-Wen Chiang
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Patent number: 11733558Abstract: A curved optic structure includes an optic film, a polarizer and a liquid crystal compensation film. The optic film includes a light incident side and a light exit side. The optic film has a curved surface on the light exit side. The polarizer is conformally attached on the curved surface. The liquid crystal compensation film is disposed at the light exit side of the optic film. The polarizer is located between the optic film and the liquid crystal compensation film. The liquid crystal compensation film includes a liquid crystal layer and a power supply. The liquid crystal layer includes a plurality of liquid crystals inside. The power supply is connected to a first side surface and an opposite second side surface of the liquid crystal layer.Type: GrantFiled: June 7, 2022Date of Patent: August 22, 2023Assignees: Interface Technology (ChengDu) Co., Ltd., Interface Optoelectronics (ShenZhen) Co., Ltd., Interface Optoelectronix (Wuxi) Co., Ltd., General Interface Solution LimitedInventors: Po Lun Chen, Yun Pei Chen, Che Wen Chiang, I Chen Liu
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Publication number: 20230068076Abstract: A dual-sided imaging thin film display structure is provided, comprising a light source, a reflective polarizing element, a basing layer and a linear polarizing element. The reflective polarizing element is disposed on a front surface of the light source, the basing layer is disposed on a back surface of the light source, and the linear polarizing element is further disposed behind the basing layer. A transmission axis of the reflective polarizing element and that of the linear polarizing element are orthogonal, such that a light beam emitted from the light source passes through the reflective polarizing element to form a front image, be reflected by the reflective polarizing element, and passes through the linear polarizing element to form a back image. By employing the present invention, it achieves to provide dual-sided images and interferences between the images are suppressed to obtain superior imaging quality and resolution.Type: ApplicationFiled: September 29, 2021Publication date: March 2, 2023Inventors: CHE WEN CHIANG, PO LUN CHEN
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Publication number: 20230058420Abstract: A LED display structure and its display module thereof are provided. The LED display module includes a LED array, a substrate disposed below the LED array, and at least one trace configuration layer, which is disposed below the LED array and adjacent to the substrate. The at least one trace configuration layer includes a plurality of wires, and a distribution density of the wires varies according to a distance between the wires and the LED array. When the distance increases, the distribution density of the wires is denser. Otherwise, the distribution density is sparse when the wires are closer to the LED array. In view of the simulation experimental analyses of the present invention, it is believed that at least 30% of the stray light ratio can be reduced so as to enhance the LED display structure with better transparency and image quality.Type: ApplicationFiled: September 23, 2021Publication date: February 23, 2023Inventors: CHE WEN CHIANG, TSUNG YI SU, PO LUN CHEN
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Publication number: 20230054796Abstract: An optical display structure is provided, including a basing layer, a lighting source layer and a capping layer. The basing layer includes a substrate and at least one trace configuration layer. The lighting source layer is disposed on the basing layer at d emits a plurality of lights for providing a light source. The capping layer is disposed above the lighting source layer to seal the optical display structure. An upper light shielding layer is alternatively disposed on the lighting source layer to shield cross-talk interferences of the emitted lights. A lower light shielding layer is alternatively disposed below the basing layer to shield reflected light from the back side of the substrate. Preferably, both the upper and lower light shielding layers can be disposed at the same time to shield cross-talk interferences and reflected light for providing an optimized inventive effect of the present invention.Type: ApplicationFiled: September 28, 2021Publication date: February 23, 2023Inventors: CHE WEN CHIANG, TSUNG YI SU, PO LUN CHEN
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Publication number: 20220229319Abstract: An optical environment oscillation detection system and an optical measurement method using the same are provided. This system includes a laser light source, a polarizer, a liquid crystal (LC) element, an analyzer, and an optical sensor arranged in sequence. A polarization axis of the polarizer and that of the analyzer are respectively parallel to a first and a second axis direction being perpendicular to each other. When there is no environmental disturbance, the alignment of LC cells in the LC element has an original pretilt angle, and the optical sensor senses a first scattered light intensity of the laser beam outputted from the analyzer. When there is environmental disturbance, the alignment of the LC cells has a changed pretilt angle in relative to the original pretilt angle, and the optical sensor senses a second scattered light intensity of the laser beam outputted from the analyzer.Type: ApplicationFiled: February 26, 2021Publication date: July 21, 2022Inventor: CHE WEN CHIANG
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Publication number: 20220216381Abstract: A micro light emitting diode (LED) display device includes a substrate, micro LED dies, a protection layer, and a funnel-tube structure array. The micro LED dies are located on the substrate. The protection layer covers the micro LED dies and the substrate. The funnel-tube structure array is located on the protection layer and includes funnel-tube structures. Each of the funnel-tube structures has a top surface facing away from the protection layer. The funnel-tube structures respectively overlap the micro LED dies in a vertical direction, and widths of the funnel-tube structures are gradually increased from the protection layer to the top surfaces of the funnel-tube structures.Type: ApplicationFiled: March 23, 2021Publication date: July 7, 2022Inventor: Che-Wen CHIANG
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Patent number: 9690180Abstract: A prism group including a first, a second, and a third prisms is provided. The first prism has a first light incidence surface, a first light emitting surface, and a first connecting surface. The second prism has a second light incidence surface, a second light emitting surface, and a second connecting surface. The second light incidence surface is located between the first light emitting surface and the second light emitting surface. A first air gap is between the second light incidence surface and the first light emitting surface. The third prism has a third light incidence surface, a third light emitting surface, and a third connecting surface. The third light incidence surface is located between the second light emitting surface and the third light emitting surface. A second air gap is between the third light incidence surface and the second light emitting surface. A projection apparatus is also provided.Type: GrantFiled: July 3, 2015Date of Patent: June 27, 2017Assignee: National Chiao Tung UniversityInventors: Jui-Wen Pan, Yung-Chih Huang, Ping-Chun Lin, Che-Wen Chiang
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Patent number: 9568663Abstract: A light guide plate including a first substrate, a second substrate opposite to the first substrate, a plurality of first microstructures, a plurality of second microstructures, and a plurality of third microstructures is provided. The first substrate has a light emitting surface, a first bottom surface, and a light incidence surface. The second substrate has a top surface and a second bottom surface. The top surface is located between the first substrate and the second bottom surface. The first microstructures and the second microstructures are disposed on the light emitting surface and the second bottom surface respectively and extend along a first direction parallel to the light incidence surface respectively. The third microstructures are connected between the first bottom surface and the top surface and extend along a second direction perpendicular to the light incidence surface respectively. A light source module is also provided.Type: GrantFiled: October 3, 2014Date of Patent: February 14, 2017Assignee: Winbond Electronics Corp.Inventors: Jui-Wen Pan, Che-Wen Chiang, Chang-Yi Li, Yung-Chih Huang
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Publication number: 20170003582Abstract: A prism group including a first, a second, and a third prisms is provided. The first prism has a first light incidence surface, a first light emitting surface, and a first connecting surface. The second prism has a second light incidence surface, a second light emitting surface, and a second connecting surface. The second light incidence surface is located between the first light emitting surface and the second light emitting surface. A first air gap is between the second light incidence surface and the first light emitting surface. The third prism has a third light incidence surface, a third light emitting surface, and a third connecting surface. The third light incidence surface is located between the second light emitting surface and the third light emitting surface. A second air gap is between the third light incidence surface and the second light emitting surface. A projection apparatus is also provided.Type: ApplicationFiled: July 3, 2015Publication date: January 5, 2017Inventors: Jui-Wen Pan, Yung-Chih Huang, Ping-Chun Lin, Che-Wen Chiang
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Patent number: 9490453Abstract: A quasi-crystal organic light-emitting display panel including a first electrode layer, an organic light-emitting layer, a second electrode layer, a buffer layer, a 10-fold quasi-crystal layer and a package cover is provided. The organic light-emitting layer is located on the first electrode layer. The second electrode layer is located on the organic light-emitting layer. The buffer layer is located on the second electrode layer. The 10-fold quasi-crystal layer is located on the buffer layer. The package cover is located on the 10-fold quasi-crystal layer. A method for simulating optical efficiency of the quasi-crystal organic light-emitting display panel is also provided.Type: GrantFiled: October 6, 2014Date of Patent: November 8, 2016Assignee: Winbond Electronics Corp.Inventors: Jui-Wen Pan, Che-Wen Chiang, Chang-Yi Li, Yung-Chih Huang
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Publication number: 20160097891Abstract: A light guide plate including a first substrate, a second substrate opposite to the first substrate, a plurality of first microstructures, a plurality of second microstructures, and a plurality of third microstructures is provided. The first substrate has a light emitting surface, a first bottom surface, and a light incidence surface. The second substrate has a top surface and a second bottom surface. The top surface is located between the first substrate and the second bottom surface. The first microstructures and the second microstructures are disposed on the light emitting surface and the second bottom surface respectively and extend along a first direction parallel to the light incidence surface respectively. The third microstructures are connected between the first bottom surface and the top surface and extend along a second direction perpendicular to the light incidence surface respectively. A light source module is also provided.Type: ApplicationFiled: October 3, 2014Publication date: April 7, 2016Inventors: Jui-Wen Pan, Che-Wen Chiang, Chang-Yi Li, Yung-Chih Huang
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Publication number: 20160099436Abstract: A quasi-crystal organic light-emitting display panel including a first electrode layer, an organic light-emitting layer, a second electrode layer, a buffer layer, a 10-fold quasi-crystal layer and a package cover is provided. The organic light-emitting layer is located on the first electrode layer. The second electrode layer is located on the organic light-emitting layer. The buffer layer is located on the second electrode layer. The 10-fold quasi-crystal layer is located on the buffer layer. The package cover is located on the 10-fold quasi-crystal layer. A method for simulating optical efficiency of the quasi-crystal organic light-emitting display panel is also provided.Type: ApplicationFiled: October 6, 2014Publication date: April 7, 2016Inventors: Jui-Wen Pan, Che-Wen Chiang, Chang-Yi Li, Yung-Chih Huang
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Publication number: 20150345734Abstract: An optical film adapted to be disposed over a light source is provided. The optical film includes a substrate, a plurality of columnar prismatic units, and a plurality of lenticular lenses. The substrate has a first surface and a second surface, wherein the first surface is located between the second surface and the light source. The columnar prismatic units comprises a plurality of columnar prisms protruding from the first surface or a plurality of prismatic recesses indented in the first surface, and the plurality of columnar prismatic units are arranged along a first direction and respectively extend along a second direction. The lenticular lenses are protruded from the second surface. The lenticular lenses are arranged along the first direction and respectively extend along the second direction. A light source module is also provided.Type: ApplicationFiled: August 18, 2014Publication date: December 3, 2015Inventors: Yu-Kai Hsu, Jui-Wen Pan, Che-Wen Chiang