Patents by Inventor Yu-Nan Pao
Yu-Nan Pao 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: 20230280629Abstract: A light source module includes a light guide plate and a light source. The light guide plate has a first surface, a second surface, a light incident surface, and two opposite side surfaces. The second surface is opposite to the first surface, and the light incident surface connects the first surface and the second surface. Each side surface connects the first surface and the second surface, and the light incident surface connects the two side surfaces. The light source is disposed beside the light incident surface for emitting an illumination beam toward the light incident surface. The light guide plate includes multiple optical microstructures disposed on each side surface and near the light incident surface. The optical microstructures include multiple curved convex surfaces arranged from one end near the light incident surface to the other end away from the light incident surface. An electrophoretic display device is also provided.Type: ApplicationFiled: February 3, 2023Publication date: September 7, 2023Applicant: E Ink Holdings Inc.Inventors: Jen-Yuan Chi, Yu-Nan Pao
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Patent number: 11709304Abstract: A light source module and a display device are provided. The light source module includes a light-emitting element, a light-guiding plate, and a filter. The light-emitting element includes a light-emitting surface. The light-guiding plate includes a light-incident surface, and the light guide plate is disposed such that the light-incident surface faces the light-emitting surface. The filter is disposed between the light-emitting surface and the light-incident surface, and a center wavelength of a reflection band of the filter falls in a range of 570 nm to 590 nm. The light-emitting element emits a first light having a first color temperature from the light-emitting surface. The first light is filtered into the second light having a second color temperature after it passes through the filter. The light-incident surface of the light-guiding plate receives the second light. The first color temperature is lower than the second color temperature.Type: GrantFiled: March 14, 2022Date of Patent: July 25, 2023Assignee: E Ink Holdings Inc.Inventors: Jen-Yuan Chi, Yu-Nan Pao
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Publication number: 20220390793Abstract: A light source module and a display device are provided. The light source module includes a light-emitting element, a light-guiding plate, and a filter. The light-emitting element includes a light-emitting surface. The light-guiding plate includes a light-incident surface, and the light guide plate is disposed such that the light-incident surface faces the light-emitting surface. The filter is disposed between the light-emitting surface and the light-incident surface, and a center wavelength of a reflection band of the filter falls in a range of 570 nm to 590 nm. The light-emitting element emits a first light having a first color temperature from the light-emitting surface. The first light is filtered into the second light having a second color temperature after it passes through the filter. The light-incident surface of the light-guiding plate receives the second light. The first color temperature is lower than the second color temperature.Type: ApplicationFiled: March 14, 2022Publication date: December 8, 2022Applicant: E Ink Holdings Inc.Inventors: Jen-Yuan Chi, Yu-Nan Pao
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Patent number: 11150532Abstract: A display apparatus includes a display module, a protective layer and at least one discontinuous printed pattern. The display module has a display area. The protective layer covers the display module. The discontinuous printed pattern is on the protective layer. The display area is partially covered by the discontinuous printed pattern.Type: GrantFiled: October 16, 2017Date of Patent: October 19, 2021Assignee: E Ink Holdings Inc.Inventors: Chih-Ching Yen, Chin-Ju Hsu, Yu-Nan Pao, Hsin-Tao Huang
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Patent number: 11062644Abstract: A display device includes a display panel, a light source module and a control unit. The display panel includes plural display areas. The light source module includes plural light source units. The light source units are configured to output plural light beams to illuminate the display areas of the display panel. The control unit is coupled to the light source module and configured to receive a frame data. The frame data includes plural subframe data, and the subframe data are displayed on the display areas. The control unit is further configured to control a first light source unit of the light source units to adjust a brightness corresponding to a first color of a first light beam of the light beams according to a ratio of the first color. The ratio of the first color is related to a first subframe data of the subframe data.Type: GrantFiled: June 11, 2018Date of Patent: July 13, 2021Assignee: E Ink Holdings Inc.Inventors: Sheng-Chieh Tai, Yu-Nan Pao, Hsin-Tao Huang, Yi-Pai Huang, Fang-Cheng Lin, Chi-Wen Chang
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Patent number: 10823895Abstract: The present disclosure provides a light-emitting module. The light-emitting module includes a light guide plate, a light source, and a brightness adjustment element. The light guide plate has a light incident surface, a front surface, and a back surface opposite the front surface. The light incident surface is located between the front surface and the back surface and is adjacent to the front surface and the back surface. The brightness adjustment element has a strip portion and at least one protruding portion. The strip portion has a first edge proximal to the light incident surface. The protruding portion is located on the first edge of the strip portion, and the protruding portion is aligned with the light source and extends away from the first edge.Type: GrantFiled: July 18, 2017Date of Patent: November 3, 2020Assignee: E Ink Holdings Inc.Inventors: Yao-Tsung Shih, Mei-Chen Chang, Yu-Nan Pao, Hsin-Tao Huang
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Patent number: 10704781Abstract: A waterproof light emitting module is provided. The waterproof light emitting module comprises a circuit board, a light emitting diode, a light guide plate, and a waterproof layer. The light emitting diode is over the circuit board, and having a light emitting surface, a first non-light emitting surface and a second non-light emitting surface. The light guide plate is adjacent to the light emitting surface of the light emitting diode. The waterproof layer covers the first non-light emitting surface and the second non-light emitting surface of the light emitting diode. The waterproof layer includes an adhesive, a substrate, a recessed portion of the light guide plate, a portion of the circuit board or a combination thereof. A display device including the waterproof light emitting module is also provided herein.Type: GrantFiled: April 12, 2018Date of Patent: July 7, 2020Assignee: E Ink Holdings Inc.Inventors: Tsai-Wei Shei, Mei-Chen Chang, Yu-Nan Pao, Hsin-Tao Huang, Ming-Chuan Hung
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Patent number: 10416367Abstract: A front light module including a light guide plate and a light source is provided. The light guide plate includes a first surface, a second surface and a light entering surface. The second surface is opposite the first surface. The light entering surface has at least one area that is adjacent to the first surface and the second surface. The light source is disposed beside the light entering surface and is configured to illuminate the light guide plate. The at least one area and an optical axis of the light source form a first angle. The first angle is less than 90 degrees. A display module is also provided.Type: GrantFiled: January 7, 2016Date of Patent: September 17, 2019Assignee: E Ink Holdings Inc.Inventors: Chin-Ju Hsu, Yu-Nan Pao, I-Jeng Chen, Sheng-Chieh Tai, Hsin-Tao Huang
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Patent number: 10247879Abstract: A light guide assembly includes a light guide plate, at least one first light source, and at least one second light source. The light guide plate has a main body, at least one first light incident structure, and at least one second light incident structure. A center of the main body has a through hole, and a straight line passing through the through hole defines a first half part and a second half part of the main body. The first light incident structure protrudes from the first half part and extends away from the main body, and the second light incident structure protrudes from the second half part and extends away from the main body. The first light source is located on an edge of the first light incident structure. The second light source is located on an edge of the second light incident structure.Type: GrantFiled: June 27, 2018Date of Patent: April 2, 2019Assignee: E Ink Holdings Inc.Inventors: Ching-Huan Liao, Hsin-Tao Huang, Yu-Nan Pao
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Publication number: 20190080644Abstract: A display device includes a display panel, a light source module and a control unit. The display panel includes plural display areas. The light source module includes plural light source units. The light source units are configured to output plural light beams to illuminate the display areas of the display panel. The control unit is coupled to the light source module and configured to receive a frame data. The frame data includes plural subframe data, and the subframe data are displayed on the display areas. The control unit is further configured to control a first light source unit of the light source units to adjust a brightness corresponding to a first color of a first light beam of the light beams according to a ratio of the first color. The ratio of the first color is related to a first subframe data of the subframe data.Type: ApplicationFiled: June 11, 2018Publication date: March 14, 2019Inventors: Sheng-Chieh TAI, Yu-Nan PAO, Hsin-Tao HUANG, Yi-Pai HUANG, Fang-Cheng LIN, Chi-Wen CHANG
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Publication number: 20190056099Abstract: A waterproof light emitting module is provided. The waterproof light emitting module comprises a circuit board, a light emitting diode, a light guide plate, and a waterproof layer. The light emitting diode is over the circuit board, and having a light emitting surface, a first non-light emitting surface and a second non-light emitting surface. The light guide plate is adjacent to the light emitting surface of the light emitting diode. The waterproof layer covers the first non-light emitting surface and the second non-light emitting surface of the light emitting diode. The waterproof layer includes an adhesive, a substrate, a recessed portion of the light guide plate, a portion of the circuit board or a combination thereof. A display device including the waterproof light emitting module is also provided herein.Type: ApplicationFiled: April 12, 2018Publication date: February 21, 2019Inventors: Tsai-Wei SHEI, Mei-Chen CHANG, Yu-Nan PAO, Hsin-Tao HUANG, Ming-Chuan HUNG
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Publication number: 20190018180Abstract: A light guide assembly includes a light guide plate, at least one first light source, and at least one second light source. The light guide plate has a main body, at least one first light incident structure, and at least one second light incident structure. A center of the main body has a through hole, and a straight line passing through the through hole defines a first half part and a second half part of the main body. The first light incident structure protrudes from the first half part and extends away from the main body, and the second light incident structure protrudes from the second half part and extends away from the main body. The first light source is located on an edge of the first light incident structure. The second light source is located on an edge of the second light incident structure.Type: ApplicationFiled: June 27, 2018Publication date: January 17, 2019Inventors: Ching-Huan LIAO, Hsin-Tao HUANG, Yu-Nan PAO
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Patent number: 10180526Abstract: A front light module including a light guide plate, a light source, a transparent cover lens and an annular connecting unit is provided. The light guide plate includes a first surface, a plurality of micro-structure groups, a second surface and a light entering surface. The first surface includes a first area and a second area surrounding the first area. The micro-structure groups are disposed on the first surface and within the first area. The micro-structure groups have a plurality of adjacent micro-structures, and the micro-structures groups are separate from each other. The light entering surface connects the first surface and the second surface. The light source is disposed beside the light entering surface. The annular connecting unit connects the second area of the first surface and the transparent cover lens, and keeps a gap between the micro-structure groups and the transparent cover lens. A display device is also provided.Type: GrantFiled: March 5, 2015Date of Patent: January 15, 2019Assignee: E Ink Holdings Inc.Inventors: Yu-Nan Pao, Chia-Chuang Hu, I-Jeng Chen, Chin-Ju Hsu, Hsin-Tao Huang
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Patent number: 10120120Abstract: A front light module includes a light guide plate, a light source and a light redirection film. The light guide plate includes a light incident surface, an inner light outgoing surface and an outer light outgoing surface. The light incident surface is adjoined between the inner light outgoing surface and the outer light outgoing surface. The light source is configured to emit light into the light incident surface of the light guide plate. The light redirection film is located beside the inner light outgoing surface, and is configured to redirect a traveling direction of the light from the light guide plate. An acute included angle between the light after redirected and a normal line of the inner light outgoing surface is less than an acute included angle between the light before redirected and the normal line of the inner light outgoing surface.Type: GrantFiled: March 18, 2016Date of Patent: November 6, 2018Assignee: E Ink Holdings Inc.Inventor: Yu-Nan Pao
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Publication number: 20180173075Abstract: A display apparatus includes a display module, a protective layer and at least one discontinuous printed pattern. The display module has a display area. The protective layer covers the display module. The discontinuous printed pattern is on the protective layer. The display area is partially covered by the discontinuous printed pattern.Type: ApplicationFiled: October 16, 2017Publication date: June 21, 2018Inventors: Chih-Ching YEN, Chin-Ju HSU, Yu-Nan PAO, Hsin-Tao HUANG
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Patent number: 9960296Abstract: A solar energy collecting system includes a substrate and at least one solar chip. The substrate includes a first surface, a second surface and a plurality of lateral surfaces, wherein the first surface faces the second surface, the lateral surfaces are adjacent to the first and second surfaces, and a first micro structure is formed on the first or the second surface. The solar chip is near one of the lateral surfaces. Solar light penetrates the first and the second surface and is refracted or reflected by the first micro structure to leave the substrate via the lateral surface and be absorbed by the solar chip.Type: GrantFiled: March 9, 2009Date of Patent: May 1, 2018Assignee: Industrial Technology Research InstituteInventors: Hui-Hsiung Lin, Chia-Wei Yu, Yu-Nan Pao
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Publication number: 20170329070Abstract: The present disclosure provides a light-emitting module. The light-emitting module includes a light guide plate, a light source, and a brightness adjustment element. The light guide plate has a light incident surface, a front surface, and a back surface opposite the front surface. The light incident surface is located between the front surface and the back surface and is adjacent to the front surface and the back surface. The brightness adjustment element has a strip portion and at least one protruding portion. The strip portion has a first edge proximal to the light incident surface. The protruding portion is located on the first edge of the strip portion, and the protruding portion is aligned with the light source and extends away from the first edge.Type: ApplicationFiled: July 18, 2017Publication date: November 16, 2017Inventors: Yao-Tsung SHIH, Mei-Chen CHANG, Yu-Nan PAO, Hsin-Tao HUANG
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Patent number: 9733422Abstract: A reflective display apparatus includes a reflective display panel, a light guide plate, an elastic ring, a light permeable liquid and a holding device. The elastic ring is sandwiched between the reflective display panel and the light guide plate, and it spaces the reflective display panel and the light guide plate apart defines a space between the reflective display panel and the light guide plate. The light permeable liquid is located in the space. The holding device holds the reflective display panel and the light guide plate, thereby pressing against the elastic ring and making the elastic ring deform.Type: GrantFiled: July 22, 2015Date of Patent: August 15, 2017Assignee: E Ink Holdings Inc.Inventors: Tsai-Wei Shei, I-Jeng Chen, Hsin-Tao Huang, Yu-Nan Pao, Sheng-Chieh Tai
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Publication number: 20170102497Abstract: A front light module includes a light guide plate, a light source and a light redirection film. The light guide plate includes a light incident surface, an inner light outgoing surface and an outer light outgoing surface. The light incident surface is adjoined between the inner light outgoing surface and the outer light outgoing surface. The light source is configured to emit light into the light incident surface of the light guide plate. The light redirection film is located beside the inner light outgoing surface, and is configured to redirect a traveling direction of the light from the light guide plate. An acute included angle between the light after redirected and a normal line of the inner light outgoing surface is less than an acute included angle between the light before redirected and the normal line of the inner light outgoing surface.Type: ApplicationFiled: March 18, 2016Publication date: April 13, 2017Inventor: Yu-Nan PAO
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Patent number: 9612388Abstract: A front light guide includes a light guide plate, a light source, a functional material layer and a first adhesive layer. The light guide plate has a side surface, a first surface and a second surface opposite to the first surface. The light guide plate has a first refractive index. The light source faces the side surface and configured to emit light into the light guide plate. The functional material layer is disposed at a side adjacent to the first surface, and has a third refractive index. The first adhesive layer is interposed between the light guide plate and the functional material layer so as to adhere the light guide plate with the functional material layer. The first adhesive layer has a second refractive index. The first refractive index is greater than the second refractive index, and the second refractive index is greater than the third refractive index.Type: GrantFiled: February 12, 2015Date of Patent: April 4, 2017Assignee: E Ink Holdings Inc.Inventors: I-Jeng Chen, Sheng-Chieh Tai, Chih-Ching Yen, Chin-Ju Hsu, Hui-Mei Fang, Yu-Nan Pao, Shu-Li Hsiao, Chia-Chuang Hu