Patents by Inventor Ping-Hsun Tsai

Ping-Hsun Tsai 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: 11980076
    Abstract: A tiled display device includes two panels and two cover layers respectively disposed on the two panels. The two cover layers include a contact region. A top portion and a bottom portion of the contact region have a height H. One of the two cover layers has a thickness Tn. One of the two panels has a distance Xn between an upper surface of the one of the two panels and the bottom portion of the contact region. The one of the two panels is corresponding to the one of the two cover layers. The height H, the thickness Tn and the distance Xn satisfy the equation: 0<H/(Xn+Tn)<0.8.
    Type: Grant
    Filed: December 24, 2020
    Date of Patent: May 7, 2024
    Assignee: InnoLux Corporation
    Inventors: Ping-Hsun Tsai, Shih-Fu Liao, I-An Yao, Yu-Chun Hsu, Yung-Hsun Wu, Sheng-Nan Fan
  • Patent number: 11964428
    Abstract: The present invention provides a bottom plate of a resin tank for three-dimensional printing, which is manufactured through the following steps: substrate surface roughening step: treating the upper surface of a transparent substrate by using a plasma, or disposing a composite film on the upper surface of the transparent substrate to form a non-smooth surface structure having pores; substrate surface modification step: sequentially performing an activation treatment and a fluorination treatment on the upper surface of the transparent substrate; and stabilizer filling step: applying a stabilizer to the upper surface of the transparent substrate to fill the stabilizer penetrates into the pores on the upper surface of the transparent substrate. The low surface energy film reduces the adhesion of the hardened photosensitive material, and the stabilizer maintains the structure of the low surface energy film, so that the resin tank bottom plate has both oleophobic and hydrophobic properties.
    Type: Grant
    Filed: March 10, 2022
    Date of Patent: April 23, 2024
    Assignee: National Taiwan University of Science and Technology
    Inventors: Jeng-Ywan Jeng, Ming-Hua Ho, Ping-Hsun Tsai
  • Publication number: 20230080633
    Abstract: The present invention provides a bottom plate of a resin tank for three-dimensional printing, which is manufactured through the following steps: substrate surface roughening step: treating the upper surface of a transparent substrate by using a plasma, or disposing a composite film on the upper surface of the transparent substrate to form a non-smooth surface structure having pores; substrate surface modification step: sequentially performing an activation treatment and a fluorination treatment on the upper surface of the transparent substrate; and stabilizer filling step: applying a stabilizer to the upper surface of the transparent substrate to fill the stabilizer penetrates into the pores on the upper surface of the transparent substrate. The low surface energy film reduces the adhesion of the hardened photosensitive material, and the stabilizer maintains the structure of the low surface energy film, so that the resin tank bottom plate has both oleophobic and hydrophobic properties.
    Type: Application
    Filed: March 10, 2022
    Publication date: March 16, 2023
    Inventors: Jeng-Ywan Jeng, Ming-Hua Ho, Ping-Hsun Tsai
  • Patent number: 11326052
    Abstract: A biodegradable plastic composition is used to manufacture a biodegradable plastic. The biodegradable plastic composition includes a biodegradable polyester, a polysaccharide, and a modifier. The modifier is used to compound the polysaccharide and the biodegradable polyester to obtain a biodegradable plastic. The biodegradable plastic has a tensile strength greater than 3 MPa and an elongation greater than 81%.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: May 10, 2022
    Assignees: Tatung Company, TATUNG UNIVERSITY
    Inventors: C. Will Chen, Chun-Yeh Chu, Ping-Hsun Tsai, Ching-Huang Wang, Chiung-Cheng Huang, Tai-Wei Tseng
  • Publication number: 20210225997
    Abstract: A tiled display device includes two panels and two cover layers respectively disposed on the two panels. The two cover layers include a contact region. A top portion and a bottom portion of the contact region have a height H. One of the two cover layers has a thickness Tn. One of the two panels has a distance Xn between an upper surface of the one of the two panels and the bottom portion of the contact region. The one of the two panels is corresponding to the one of the two cover layers. The height H, the thickness Tn and the distance Xn satisfy the equation: 0?H/(Xn+Tn) <0.8.
    Type: Application
    Filed: December 24, 2020
    Publication date: July 22, 2021
    Inventors: Ping-Hsun TSAI, Shih-Fu LIAO, I-An YAO, Yu-Chun HSU, Yung-Hsun WU, Sheng-Nan FAN
  • Patent number: 10795074
    Abstract: A backlight assembly includes an optical plate, a light source provided near the optical plate, and a brightness redistribution film provided above the optical plate. When light emitted from the light source passes through the optical plate and the brightness redistribution film, a front view angle brightness measured in a normal direction of a light exiting surface of the brightness redistribution film relative to a maximum brightness emitted from the backlight assembly has a brightness ratio N, wherein the brightness ratio N is greater than or equal to 60% and is smaller than 100% (60%?N<100%).
    Type: Grant
    Filed: September 25, 2019
    Date of Patent: October 6, 2020
    Assignee: INNOLUX CORPORATION
    Inventors: Ping-Hsun Tsai, Shih-Fu Liao, I-An Yao
  • Publication number: 20200283621
    Abstract: A biodegradable plastic composition is used to manufacture a biodegradable plastic. The biodegradable plastic composition includes a biodegradable polyester, a polysaccharide, and a modifier. The modifier is used to compound the polysaccharide and the biodegradable polyester to obtain a biodegradable plastic. The biodegradable plastic has a tensile strength greater than 3 MPa and an elongation greater than 81%.
    Type: Application
    Filed: January 9, 2020
    Publication date: September 10, 2020
    Applicants: Tatung Company, TATUNG UNIVERSITY
    Inventors: C. Will Chen, Chun-Yeh Chu, Ping-Hsun Tsai, Ching-Huang Wang, Chiung-Cheng Huang, Tai-Wei Tseng
  • Publication number: 20200132917
    Abstract: A backlight assembly includes an optical plate, a light source provided near the optical plate, and a brightness redistribution film provided above the optical plate. When light emitted from the light source passes through the optical plate and the brightness redistribution film, a front view angle brightness measured in a normal direction of a light exiting surface of the brightness redistribution film relative to a maximum brightness emitted from the backlight assembly has a brightness ratio N, wherein the brightness ratio N is greater than or equal to 60% and is smaller than 100% (60%?N<100%).
    Type: Application
    Filed: September 25, 2019
    Publication date: April 30, 2020
    Inventors: Ping-Hsun TSAI, Shih-Fu LIAO, I-An YAO
  • Patent number: 10545376
    Abstract: A light source device includes a substrate and a plurality of light-emitting units disposed on a surface of the substrate. At least one of the light-emitting units includes a light source chip and an optical material layer covering the light source chip. A maximum width is defined as a distance between two farthest points on a pattern corresponding to a vertical projection of the optical material layer on the surface of the substrate, and a half of the maximum width is defined as a first width R. A maximum height H is defined as a vertical distance from the surface of the substrate to a highest point of the optical material layer away from the substrate. A ratio of R to H is between 5 and 1000. A display device applying the light source device is also provided.
    Type: Grant
    Filed: September 7, 2018
    Date of Patent: January 28, 2020
    Assignee: INNOLUX CORPORATION
    Inventors: Chun-Kai Chang, Cheng-Yuan Hsiao, Shih-Fu Liao, Ping-Hsun Tsai, I-An Yao
  • Publication number: 20190094623
    Abstract: A light source device includes a substrate and a plurality of light-emitting units disposed on a surface of the substrate. At least one of the light-emitting units includes a light source chip and an optical material layer covering the light source chip. A maximum width is defined as a distance between two farthest points on a pattern corresponding to a vertical projection of the optical material layer on the surface of the substrate, and a half of the maximum width is defined as a first width R. A maximum height H is defined as a vertical distance from the surface of the substrate to a highest point of the optical material layer away from the substrate. A ratio of R to H is between 5 and 1000. A display device applying the light source device is also provided.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 28, 2019
    Inventors: Chun-Kai CHANG, Cheng-Yuan HSIAO, Shih-Fu LIAO, Ping- Hsun TSAI, I-An YAO
  • Patent number: 10047194
    Abstract: A biodegradable polyester is consisting of a poly(terephthalate-di-(?-caprolactone) segment, a poly(terephthalate-butylene-terephthalate) segment, a poly(terephthalate-butylene-?-caprolactone) segment, a poly(?-caprolactone-butylene-?-caprolactone) segment, and a poly(tri(?-caprolactone) segment. The above five segments are obtained by polycondensation reaction of terephthalic acid, 1,4-butanediol and ?-caprolactone under the presence of a catalyst, with a polycondensation temperature of 255° C. to 270° C. and a polycondensation time of 2 hours to 4 hours. Furthermore, based on 1 mole of terephthalic acid, a molar ratio of 1,4-butanediol to terephthalic acid is in the range of 1.1 to 1.4, and a molar ratio of ?-caprolactone to terephthalic acid is in the range of 0.5 to 1.6. The biodegradable polyester can have a melting point (Tm) of 90° C. to 170° C.
    Type: Grant
    Filed: June 4, 2013
    Date of Patent: August 14, 2018
    Assignees: Tatung Company, TATUNG UNIVERSITY
    Inventors: C. Will Chen, Ching-Huang Wang, Ping-Hsun Tsai
  • Publication number: 20140221598
    Abstract: A biodegradable polyester is provided. The biodegradable polyester is composed of a poly(terephthalate-di-(?-caprolactone) unit, a poly(terephthalate-butylene-terephthalate) unit, a poly(terephthalate-butylene-?-caprolactone) unit, a poly(?-caprolactone-butylene-?-caprolactone) unit, and a poly(tri(?-caprolactone) unit.
    Type: Application
    Filed: June 4, 2013
    Publication date: August 7, 2014
    Inventors: C. Will Chen, Ching-Huang Wang, Ping-Hsun Tsai
  • Patent number: 8240181
    Abstract: An extrusion die device includes a first die having a shaping hole. An inner periphery of the shaping hole has a plurality of twisted guiding portions. A second die includes a plurality of guiding holes. A bridge is formed between two adjacent guiding holes. A plurality of tongues extends from a surface of each bridge and each includes an input end face contiguous to the bridge and an output end face whose projection on the surface of the bridge has an angular shift relative to the input end face. A side of the second die is coupled to an input side of the first die. The tongues are received in the shaping hole. Material is squeezed through a passage between each tongue and the inner periphery of the shaping hole and rotates according to the twisting direction of the tongues, forming a hollow object with an integrally formed helical rib.
    Type: Grant
    Filed: November 5, 2009
    Date of Patent: August 14, 2012
    Assignee: Metal Industries Research & Development Centre
    Inventors: Ping-Hsun Tsai, Chih-Peng Hsu, Wan-Chi Chang
  • Publication number: 20100132430
    Abstract: An extrusion die device includes a first die having a shaping hole. An inner periphery of the shaping hole has a plurality of twisted guiding portions. A second die includes a plurality of guiding holes. A bridge is formed between two adjacent guiding holes. A plurality of tongues extends from a surface of each bridge and each includes an input end face contiguous to the bridge and an output end face whose projection on the surface of the bridge has an angular shift relative to the input end face. A side of the second die is coupled to an input side of the first die. The tongues are received in the shaping hole. Material is squeezed through a passage between each tongue and the inner periphery of the shaping hole and rotates according to the twisting direction of the tongues, forming a hollow object with an integrally formed helical rib.
    Type: Application
    Filed: November 5, 2009
    Publication date: June 3, 2010
    Inventors: Ping-Hsun Tsai, Chih-Peng Hsu, Wan-Chi Chang