Patents by Inventor Chen-Hao Su

Chen-Hao Su 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).

  • Publication number: 20250251629
    Abstract: A reflective display panel includes a first substrate, a second substrate, pixel structures, spacers, a first alignment layer, a second alignment layer, a liquid crystal layer, and light shielding patterns. The pixel structures are disposed on the first substrate. The spacers and the liquid crystal layer are disposed between the first and second substrates. The first alignment layer is disposed on the first substrate and has a first alignment direction. The second alignment layer is disposed on the second substrate and has a second alignment direction. Each spacer has a first side edge and a second side edge facing away from each other and sequentially arranged along the first or second alignment direction. In a stacking direction of the first and second substrates, each light shielding pattern overlaps with the second side edge of one of the spacers, but does not overlap with the first side edge thereof.
    Type: Application
    Filed: October 29, 2024
    Publication date: August 7, 2025
    Applicant: HannStar Display Corporation
    Inventors: Yu-Chi Chiao, Chen-Hao Su, Cheng-Yen Yeh, Hsuan-Chen Liu, Chih-Pin Lin, Ling Chih Kao
  • Publication number: 20250251630
    Abstract: A display panel includes a first substrate, a second substrate, a plurality of pixel structures, a plurality of color filter patterns, a plurality of spacers, and a liquid crystal layer. The pixel structures are disposed on the first substrate, and each pixel structure includes a reflective electrode. The color filter patterns respectively overlap the reflective electrodes of the pixel structures. The spacers and the liquid crystal layer are disposed between the first substrate and the second substrate. The pixel structures include a first pixel structure, the spacers include a first spacer, and the color filter patterns include a first color filter pattern. The reflective electrode of the first pixel structure of the pixel structures overlaps the first spacer of the spacers and the first color filter pattern of the color filter patterns, and at least a portion of the first spacer does not overlap the first color filter pattern.
    Type: Application
    Filed: November 5, 2024
    Publication date: August 7, 2025
    Applicant: HannStar Display Corporation
    Inventors: Yu-Chi Chiao, Chen-Hao Su, Cheng-Yen Yeh, Mu-Kai Kang, Chung Lin Chang
  • Publication number: 20250107234
    Abstract: A display device has a display area and a peripheral area, and includes an array substrate. The array substrate includes M number of pixel unit columns disposed in the display area and a first dummy electrode disposed in the peripheral area, where M is a positive integer greater than or equal to 2. The M number of pixel unit columns include a first pixel unit column to an Mth pixel unit column arranged in sequence. Each of the M number of pixel unit columns includes a plurality of pixel units arranged in sequence. The first dummy electrode is located on one side of the first pixel unit column. During a frame period, the first pixel unit column receives the first pixel signal, and the first dummy electrode receives the first dummy signal. The polarity of the first pixel signal is different from that of the first dummy signal.
    Type: Application
    Filed: July 1, 2024
    Publication date: March 27, 2025
    Inventors: Chung-Lin CHANG, Hsuan-Chen LIU, Yu-Cheng LIN, Chen-Hao SU
  • Patent number: 12189171
    Abstract: A display apparatus including a display panel, a first light source module, and a second light source module is disclosed. The display panel has a display surface and a back surface away from the display surface. The first light source module is disposed on a side of one of the display surface and the back surface of the display panel, and overlaps the display surface. The second light source module is disposed on a side of the other one of the display surface and the back surface of the display panel, and overlaps the display surface.
    Type: Grant
    Filed: November 26, 2023
    Date of Patent: January 7, 2025
    Assignee: HannStar Display Corporation
    Inventors: Chen-Hao Su, Chin-Wei Lin, Chin-Yung Liu
  • Publication number: 20240353611
    Abstract: A display apparatus including a display panel, a first light source module, and a second light source module is disclosed. The display panel has a display surface and a back surface away from the display surface. The first light source module is disposed on a side of one of the display surface and the back surface of the display panel, and overlaps the display surface. The second light source module is disposed on a side of the other one of the display surface and the back surface of the display panel, and overlaps the display surface.
    Type: Application
    Filed: November 26, 2023
    Publication date: October 24, 2024
    Applicant: HannStar Display Corporation
    Inventors: Chen-Hao Su, Chin-Wei Lin, Chin-Yung Liu
  • Publication number: 20240241414
    Abstract: A reflective display panel includes a first substrate and a second substrate. A thin film transistor and a reflective layer are disposed on the first substrate. A color resist layer is disposed on the second substrate. The reflective display panel includes a color sub-pixel region and a white sub-pixel region adjacent to each other. The color sub-pixel region has the color resist layer, and the white sub-pixel region has no color resist layer. A buffer layer is disposed in the white sub-pixel region on the first substrate or the second substrate. A cell gap between the first substrate and the second substrate in the white sub-pixel region is smaller than a cell gap between the first substrate and the second substrate in the color sub-pixel region. In this way, reflectivity and chromaticity can be improved.
    Type: Application
    Filed: December 4, 2023
    Publication date: July 18, 2024
    Inventors: Wei-Chih HSU, Ding-Wei LIU, Yen-Chung CHEN, Cheng-Yen YEH, Chen-Hao SU
  • Publication number: 20230066074
    Abstract: The disclosure provides a display panel including a first substrate, multiple scan lines, multiple data lines, and multiple pixel structures. The scan lines and the data lines are disposed on the first substrate and intersect each other. One of the pixel structures includes an active element, a pixel electrode, a capacitor electrode, a common electrode, and a repair pattern. The active element includes a source, a drain, and a gate. The gate is electrically connected to one of the scan lines. The source is electrically connected to one of the data lines. The pixel electrode is electrically connected to the drain of the active element. The capacitor electrode is electrically connected to the pixel electrode and extends from the drain. The common electrode overlaps the pixel electrode and the capacitor electrode. The repair pattern overlaps one of the scan lines as well as the common electrode, and the pixel electrode.
    Type: Application
    Filed: August 11, 2022
    Publication date: March 2, 2023
    Applicant: HannStar Display Corporation
    Inventors: Chung Lin Chang, Hsuan-Chen Liu, Cheng-Yen Yeh, Yu-Cheng Lin, Chen-Hao Su
  • Patent number: 11536437
    Abstract: The backlight module includes multiple backlight units. Each backlight unit includes a first light emitting unit and multiple second light emitting units. The first light emitting unit has a first beam angle, and each second light emitting unit has a second beam angle which is narrower than the first beam angle. In a first mode, a light intensity of the first light emitting unit is equal to a first intensity, and a light intensity of the second light emitting units is equal to a second intensity. In a second mode, the light intensity of the first light emitting unit is equal to a third intensity, and the light intensity of the second light emitting units is equal to a fourth intensity. The first intensity is greater than the third intensity, and the second intensity is less than the fourth intensity.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: December 27, 2022
    Assignees: HannStar Display (Nanjing) Corporation, HannStar Display Corporation
    Inventors: Chen-Hao Su, Chia-Feng Teng, Chin-Yung Liu
  • Publication number: 20220381417
    Abstract: The backlight module includes multiple backlight units. Each backlight unit includes a first light emitting unit and multiple second light emitting units. The first light emitting unit has a first beam angle, and each second light emitting unit has a second beam angle which is narrower than the first beam angle. In a first mode, a light intensity of the first light emitting unit is equal to a first intensity, and a light intensity of the second light emitting units is equal to a second intensity. In a second mode, the light intensity of the first light emitting unit is equal to a third intensity, and the light intensity of the second light emitting units is equal to a fourth intensity. The first intensity is greater than the third intensity, and the second intensity is less than the fourth intensity.
    Type: Application
    Filed: April 28, 2022
    Publication date: December 1, 2022
    Inventors: Chen-Hao Su, Chia-Feng Teng, Chin-Yung Liu
  • Patent number: 11506827
    Abstract: The backlight module includes the following units. Multiple first light emitting units are disposed on a top surface of a transparent substrate. A beam angle of the first light emitting units is greater than or equal to 30 degrees and less than or equal to 45 degrees. Multiple second light emitting units and a light guide plate are disposed on a bottom surface of the transparent substrate. Each second light emitting unit is disposed in a respective hole of the light guide plate. A light intensity of the first light emitting units in a first mode is smaller than that in a second mode. A light intensity of the second light emitting units in the first mode is greater than that in the second mode. In this way, the purpose of privacy protection can be achieved.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: November 22, 2022
    Assignee: HannStar Display Corporation
    Inventors: Chen-Hao Su, Chia-Feng Teng, Chin-Yung Liu
  • Patent number: 11467684
    Abstract: The disclosure provides a touch display panel including a substrate and a first mesh electrode. The first mesh electrode is disposed on the substrate and includes a plurality of first extending portions, a plurality of second extending portions, and a plurality of first disconnection regions. The first extending portions are arranged along a first direction and extend in a second direction. The first direction intersects with the second direction. The second extending portions are arranged along the second direction and extend in the first direction. The first disconnection regions are arranged along the first direction and extend in the second direction. The first disconnection regions overlap the second extending portions and do not overlap the first extending portions.
    Type: Grant
    Filed: April 28, 2021
    Date of Patent: October 11, 2022
    Assignee: HannStar Display Corporation
    Inventors: Meng-Ju Li, Mei-Ling Chou, Ding-Wei Liu, Wei-Chih Hsu, Chen-Hao Su
  • Publication number: 20210373693
    Abstract: The disclosure provides a touch display panel including a substrate and a first mesh electrode. The first mesh electrode is disposed on the substrate and includes a plurality of first extending portions, a plurality of second extending portions, and a plurality of first disconnection regions. The first extending portions are arranged along a first direction and extend in a second direction. The first direction intersects with the second direction. The second extending portions are arranged along the second direction and extend in the first direction. The first disconnection regions are arranged along the first direction and extend in the second direction. The first disconnection regions overlap the second extending portions and do not overlap the first extending portions.
    Type: Application
    Filed: April 28, 2021
    Publication date: December 2, 2021
    Applicant: HannStar Display Corporation
    Inventors: Meng-Ju Li, Mei-Ling Chou, Ding-Wei Liu, Wei-Chih Hsu, Chen-Hao Su
  • Patent number: 11143906
    Abstract: A reflective LCD panel includes a color filter substrate, an array substrate, a liquid crystal layer and a polarizing film. The array substrate and the color filter substrate are disposed oppositely. The liquid crystal layer is disposed between the color filter substrate and the array substrate and has an alignment direction. The polarizing film is disposed on the color filter substrate, and color coordinates of the polarizing film in the CIE1976 color space are (a, b), wherein 0.05?a?0.2 and ?5?b?0. The liquid crystal layer has a birefringence difference ?n, the liquid crystal layer has a thickness (d), when the reflective LCD panel is in a white frame, 2?n*d=?? is satisfied, ?? is the optical path difference obtained when a forward light vertically enters the liquid crystal layer and is reflected by the array substrate, and 120 nm??n*d?170 nm.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: October 12, 2021
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Ding-Wei Liu, Meng-Ju Li, Wei-Chih Hsu, Chen-Hao Su, Sung-Chun Lin, Chia-Hua Yu
  • Publication number: 20210294156
    Abstract: A reflective LCD panel includes a color filter substrate, an array substrate, a liquid crystal layer and a polarizing film. The array substrate and the color filter substrate are disposed oppositely. The liquid crystal layer is disposed between the color filter substrate and the array substrate and has an alignment direction. The polarizing film is disposed on the color filter substrate, and color coordinates of the polarizing film in the CIE1976 color space are (a, b), wherein 0.05?a?0.2 and ?5?b?0. The liquid crystal layer has a birefringence difference ?n, the liquid crystal layer has a thickness (d), when the reflective LCD panel is in a white frame, 2?n*d=?? is satisfied, ?? is the optical path difference obtained when a forward light vertically enters the liquid crystal layer and is reflected by the array substrate, and 120 nm??n*d?170 nm.
    Type: Application
    Filed: March 18, 2021
    Publication date: September 23, 2021
    Inventors: Ding-Wei LIU, Meng-Ju LI, Wei-Chih HSU, Chen-Hao SU, Sung-Chun LIN, Chia-Hua YU
  • Patent number: 10976625
    Abstract: The display panel includes a first substrate, a second substrate, pixel structures, a liquid crystal layer and a transparent conductive layer. The liquid crystal layer is disposed between the pixel structures and the second substrate. The transparent conductive layer is disposed between the second substrate and the liquid crystal layer. When a liquid crystal molecule of the liquid crystal layer is a positive liquid crystal molecule, an absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 2.3 volts(V). When the liquid crystal molecule of the liquid crystal layer is a negative liquid crystal molecule, the absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 5V.
    Type: Grant
    Filed: February 2, 2020
    Date of Patent: April 13, 2021
    Assignees: HannStar Display (Nanjing) Corporation, HannStar Display Corporation
    Inventors: Wei-Chih Hsu, Chen-Hao Su, Yu-Chen Liu
  • Patent number: 10788906
    Abstract: A manufacturing method of the flexible panel is provided. Firstly, a carrier substrate is provided. Then, an adhesion layer is formed on the carrier substrate, a flexible substrate is formed on the adhesion layer, and a buffer layer is formed on the flexible substrate. Then, a device layer is formed on the flexible substrate. Next, a separating process is performed for separating the flexible substrate and the device layer from the carrier substrate. According to a relation between a thermal expansion coefficient of the flexible substrate and a thermal expansion coefficient of the carrier substrate, the manufacturing method of the flexible panel selects a pattern of the adhesion layer. The pattern of the adhesion layer includes a frame adhesion structure or a plane adhesion structure.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: September 29, 2020
    Assignees: HannStar Display (Nanjing) Corporation, HANNSTAR DISPLAY CORPORATION
    Inventors: Yen-Chung Chen, Wei-Chih Hsu, Chen-Hao Su
  • Patent number: 10782559
    Abstract: A reflective liquid crystal display panel including a plurality of pixel units is provided. Each pixel unit includes first and second substrates, one first signal line, four second signal lines, a liquid crystal layer, a first pixel structure, a second pixel structure, a third pixel structure and a fourth pixel structure. The first and second signal lines are disposed on the first substrate. The first, second, third, and fourth pixel structures are electrically connected to one of the four second signal lines respectively and electrically connected to the first signal line, where the first, second, third, and fourth pixel structures respectively include an active component and a reflective pixel electrode electrically connected to the active component, and a reflection area ratio of the first, second, third, and fourth pixel structures is 1:2:4:8. The second substrate is located opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: September 22, 2020
    Assignee: HannStar Display Corporation
    Inventors: Ming-Chang Yu, Cheng-Yen Yeh, Chen-Hao Su
  • Publication number: 20200174330
    Abstract: The display panel includes a first substrate, a second substrate, pixel structures, a liquid crystal layer and a transparent conductive layer. The liquid crystal layer is disposed between the pixel structures and the second substrate. The transparent conductive layer is disposed between the second substrate and the liquid crystal layer. When a liquid crystal molecule of the liquid crystal layer is a positive liquid crystal molecule, an absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 2.3 volts(V). When the liquid crystal molecule of the liquid crystal layer is a negative liquid crystal molecule, the absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 5V.
    Type: Application
    Filed: February 2, 2020
    Publication date: June 4, 2020
    Inventors: Wei-Chih HSU, Chen-Hao SU, Yu-Chen LIU
  • Patent number: 10593283
    Abstract: The display panel includes a first substrate, a second substrate, pixel structures, a liquid crystal layer and a transparent conductive layer. The liquid crystal layer is disposed between the pixel structures and the second substrate. The transparent conductive layer is disposed between the second substrate and the liquid crystal layer. When a liquid crystal molecule of the liquid crystal layer is a positive liquid crystal molecule, an absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 2.3 volts(V). When the liquid crystal molecule of the liquid crystal layer is a negative liquid crystal molecule, the absolute voltage difference between the transparent conductive layer and the common electrode is smaller than or equal to 5V.
    Type: Grant
    Filed: June 5, 2017
    Date of Patent: March 17, 2020
    Assignees: HannStar Display (Nanjing) Corporation, HannStar Display Corporation
    Inventors: Wei-Chih Hsu, Chen-Hao Su, Yu-Chen Liu
  • Publication number: 20200057336
    Abstract: A reflective liquid crystal display panel including a plurality of pixel units is provided. Each pixel unit includes first and second substrates, one first signal line, four second signal lines, a liquid crystal layer, a first pixel structure, a second pixel structure, a third pixel structure and a fourth pixel structure. The first and second signal lines are disposed on the first substrate. The first, second, third, and fourth pixel structures are electrically connected to one of the four second signal lines respectively and electrically connected to the first signal line, where the first, second, third, and fourth pixel structures respectively include an active component and a reflective pixel electrode electrically connected to the active component, and a reflection area ratio of the first, second, third, and fourth pixel structures is 1:2:4:8. The second substrate is located opposite to the first substrate. The liquid crystal layer is disposed between the first substrate and the second substrate.
    Type: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Applicant: HannStar Display Corporation
    Inventors: Ming-Chang Yu, Cheng-Yen Yeh, Chen-Hao Su