Patents Assigned to Hannstar Display Corporation
  • Publication number: 20250138362
    Abstract: A reflective display panel including a pixel structure is provided. The pixel structure has a reflective area and includes an active device, an insulation layer, and a reflective layer. The insulation layer is located above the active device. The reflective layer is disposed on the insulation layer and located in the reflective area. The reflective layer includes a silver alloy layer. A material of the silver alloy layer include silver with an atomic percentage greater than 96.5%, zinc with an atomic percentage greater than or equal to 0.1% and less than or equal to 2.0%, and antimony with an atomic percentage greater than or equal to 0.1% and less than or equal to 1.5%. A sputtering target adapted to deposit the silver alloy layer is further provided. A material of the sputtering target include silver with the atomic percentage greater than 96.5%, zinc with the atomic percentage greater than or equal to 0.1% and less than or equal to 2.0%, and antimony with the atomic percentage greater than or equal to 0.
    Type: Application
    Filed: September 2, 2024
    Publication date: May 1, 2025
    Applicant: HannStar Display Corporation
    Inventors: Chiung-Chang Wu, Hsien-Tang Hu
  • Publication number: 20250130466
    Abstract: A display panel including a substrate, scan lines, data lines, pixel structures, and a light shielding pattern layer is provided. The substrate is provided with a display area. The scan lines and the data lines are disposed on the substrate, and intersect with each other. The pixel structures are disposed in the display area, and each includes a display transistor and a pixel electrode. The display transistor includes a first semiconductor pattern, a first gate electrode, a first source electrode, and a first drain electrode. The first gate electrode is disposed between the substrate and the first semiconductor pattern, and is electrically connected to one of the scan lines. The first source electrode is electrically connected to one of the data lines. The pixel electrode is electrically connected to the first drain electrode of the display transistor. The light shielding pattern layer is disposed between the first gate electrode and the substrate, and has a first opening overlapping the first gate electrode.
    Type: Application
    Filed: April 9, 2024
    Publication date: April 24, 2025
    Applicant: HannStar Display Corporation
    Inventors: Qi-En Luo, Cheng-Yen Yeh, Yen-Chung Chen, Mu-Kai Kang, Jing-Xuan Chen, Shao-Chien Chang
  • Publication number: 20250068019
    Abstract: A display panel includes a substrate, multiple scan lines, multiple data lines, and multiple pixel structures. The scan lines and the data lines are disposed on the substrate. The pixel structure is disposed on the substrate and electrically connected to the scan lines and the data lines, and includes an active device, a pixel electrode, a capacitor electrode, an overcoat layer, a first common electrode, a second common electrode, a first passivation layer, and a second passivation layer. The active device is electrically connected one scan line, one data line, and the pixel electrode. The capacitor electrode extends from a drain and is electrically connected to the pixel electrode. The overcoat layer is disposed between the pixel electrode and the capacitor electrode. The first common electrode overlaps the capacitor electrode, and is located between the overcoat layer and the capacitor electrode.
    Type: Application
    Filed: June 17, 2024
    Publication date: February 27, 2025
    Applicant: HannStar Display Corporation
    Inventors: Mu-Kai Kang, Cheng-Yen Yeh, Yen-Chung Chen, Jing-Xuan Chen, Qi-En Luo, Shao-Chien Chang
  • Patent number: 12222610
    Abstract: This invention discloses a display panel including a sub-pixel. The sub-pixel includes a switch device, a first electrode, a transparent electrode, and a reflective electrode. The switch device and the first electrode are disposed in the reflective region and electrically connected. The transparent electrode is disposed on the first electrode and in the reflective region and the light transmissive region. The transparent electrode has a first length in a first direction and a second length in a second direction. The reflective electrode is disposed on the transparent electrode and in the reflective region. The reflective electrode has a third length in the first direction and a fourth length in the second direction, and the third length is greater than the first length, and the fourth length is greater than the second length. The transparent electrode, the reflective electrode, and the first electrode are electrically connected.
    Type: Grant
    Filed: April 21, 2024
    Date of Patent: February 11, 2025
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Min-Jung Ho, Hsien-Tang Hu
  • Publication number: 20250044650
    Abstract: A display panel includes a substrate and a plurality of pixel units. The pixel unit is disposed on the substrate and includes a power generating structure. The power generating structure includes a first electrode, a second electrode and a transparent semiconductor layer. The first electrode includes a metal reflective layer. The second electrode is disposed on the first electrode and includes a transparent conductive layer. The transparent semiconductor layer is disposed between the first electrode and the second electrode, and the transparent semiconductor layer is electrically connected to the first electrode and the second electrode.
    Type: Application
    Filed: June 19, 2024
    Publication date: February 6, 2025
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Jhih-Jie Huang, I-Tung Chen
  • 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: 20240411166
    Abstract: A display panel, including a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer, and a circuit board, is provided. The first substrate has a display area and a bonding area outside the display area. The second substrate overlaps with the first substrate and exposes the bonding area. The liquid crystal layer is disposed between the first substrate and the second substrate, and overlaps with the display area. The first polarizer is disposed on a surface of the first substrate facing away from the second substrate. The second polarizer is disposed on a surface of the second substrate facing away from the first substrate. The circuit board is bonded to the bonding area. A first side wall of the second substrate facing the bonding area is flush with a second side wall of the second polarizer facing the bonding area.
    Type: Application
    Filed: August 1, 2023
    Publication date: December 12, 2024
    Applicant: HannStar Display Corporation
    Inventor: Chia-Lin Chung
  • 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
  • Patent number: 12117699
    Abstract: This invention discloses an etching solution and a manufacturing method of a display panel. The method includes following steps: providing a substrate; forming a conductive layer stack including a first sub-layer, a second sub-layer and a third sub-layer on the substrate, the first sub-layer includes molybdenum, the second sub-layer is disposed on the first sub-layer and includes a transparent conductive material including indium-containing oxide, the third sub-layer is disposed between the first sub-layer and the second sub-layer and includes silver or silver alloy; performing an etching process, the first sub-layer, the second sub-layer and the third sub-layer are etched by an etching solution to form a first patterned sub-layer, a second patterned sub-layer and a third patterned sub-layer. The etching solution includes 1 to 3 wt % of nitric acid, 30 to 50 wt % of acetic acid, 30 to 50 wt % of phosphoric acid and a remaining amount of water.
    Type: Grant
    Filed: April 17, 2024
    Date of Patent: October 15, 2024
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Li-Fang Chiu, Ching-Chieh Lee, Chun-Chieh Wang
  • Publication number: 20240237232
    Abstract: A circuit board including a substrate, a first circuit layer, a first insulating layer, a second circuit layer, and a solder resist layer is provided. The first circuit layer is disposed on the substrate. The first insulating layer is disposed on the substrate and covers a portion of the first circuit layer. The second circuit layer is disposed on the first insulating layer and penetrates a portion of the first insulating layer to electrically connect the first circuit layer. The solder resist layer is disposed on the substrate and covers a portion of the second circuit layer.
    Type: Application
    Filed: May 9, 2023
    Publication date: July 11, 2024
    Applicant: HannStar Display Corporation
    Inventors: Pei-Hao Hung, Chun I Chu, Chia Lin Liu, Yung-Li Huang
  • Patent number: 12022724
    Abstract: A flexible touch panel includes a flexible touch substrate, an overcoat layer, a device layer, and a waterproof layer. The overcoat layer is disposed over and directly contacting the flexible touch substrate. An adhesive force of the overcoat layer obtained according to an ASTM D3359 cross-cut test is greater than 4B. The device layer is disposed over the overcoat layer. The waterproof layer is interposed between the overcoat layer and the device layer.
    Type: Grant
    Filed: May 11, 2023
    Date of Patent: June 25, 2024
    Assignee: HannStar Display Corporation
    Inventors: Yen-Chung Chen, Mei-Ling Chou, Chia-Yu Liu
  • Publication number: 20240172475
    Abstract: The invention discloses an etching solution and a manufacturing method of a display panel. The method includes following steps: providing a first substrate; forming a conductive layer stack including a first sub-layer, a second sub-layer and a third sub-layer, each of the first sub-layer and the second sub-layer includes a transparent conductive material including indium-containing oxide, the third sub-layer is disposed between the first sub-layer and the second sub-layer, and the third sub-layer includes silver or silver alloy; performing an etching process, an etching solution is used to etch the first sub-layer, the second sub-layer and the third sub-layer to form a first patterned sub-layer, a second patterned sub-layer and a third patterned sub-layer, and the etching solution includes 1 to 2.6 wt % of nitric acid, 35 to 45 wt % of acetic acid, 35 to 45 wt % of phosphoric acid and a remaining amount of water.
    Type: Application
    Filed: October 17, 2023
    Publication date: May 23, 2024
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Li-Fang Chiu, Ching-Chieh Lee, Chien-Hung Wu
  • Publication number: 20240145653
    Abstract: A manufacturing method of a display device includes forming light emitting components on a first substrate, the light emitting components include a first side and a second side, and the second side is away from the first substrate; forming a circuit layer on the first substrate and on the second side of the light emitting components; forming a first protective layer on the circuit layer and forming an insulating layer on the first protective layer; removing the first substrate after forming a second substrate on the insulating layer; forming a black matrix layer on the first side of the light emitting components, and the black matrix layer includes openings; forming light conversion layers in the openings of the black matrix layer; forming a second protective layer on the black matrix layer and the light conversion layers; and forming a third substrate on the second protective layer.
    Type: Application
    Filed: May 12, 2023
    Publication date: May 2, 2024
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Chun-I Chu, Yu-Chi Chiao, Yung-Li Huang, Hung-Ming Chang, Cheng-Yu Lin, Huan-Hsun Hsieh, CHeng-Pei Huang
  • Patent number: 11947208
    Abstract: This invention discloses a display panel including a first substrate, light emitting elements, a touch sensing structure and a conductive layer. The light emitting elements are disposed on the first substrate. The touch sensing structure is disposed on the first substrate and on a side away from a light emitting surface of the light emitting elements. The conductive layer is disposed between the light emitting elements and the first substrate and includes contacts or at least a portion of the touch sensing structure, and the light emitting elements and the contacts are electrically connected.
    Type: Grant
    Filed: August 15, 2022
    Date of Patent: April 2, 2024
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Jing-Xuan Chen, Cheng-Yen Yeh, Mu-Kai Kang, Sz-Kai Huang, Ming-Chang Yu
  • Publication number: 20240105098
    Abstract: A display device including a display panel is disclosed. The display panel includes a substrate, multiple scan lines, multiple data lines, multiple pixel structures, a first gate driving circuit, and a second gate driving circuit. The pixel structures are electrically connected to the scan lines and the data lines. Multiple first output stage circuits of the first gate driving circuit disposed in a peripheral area are electrically connected to the scan lines. Multiple second output stage circuits of the second gate driving circuit disposed in the peripheral area are electrically connected to the scan lines. A channel width of a first output transistor of the first output stage circuit is greater than a channel width of a second output transistor of the second output stage circuit.
    Type: Application
    Filed: August 28, 2023
    Publication date: March 28, 2024
    Applicant: HannStar Display Corporation
    Inventors: Jing-Xuan Chen, Yen-Chung Chen, Mu-Kai Kang, Qi-En Luo, Cheng-Yen Yeh
  • Patent number: 11894385
    Abstract: An electronic device includes a flexible substrate and a driving component. In the flexible substrate, a first side region, a second side region and a first cutting structure are disposed in a peripheral region, wherein a display region and the first side region are separated by a first edge of the display region, the display region and the second side region are separated by a second edge of the display region, the first edge and the second edge are respectively parallel to a first direction and a second direction perpendicular to the first direction, the first cutting structure has a first endpoint and two edges separated by the first endpoint and respectively belonging to the first side region and the second side region. The driving component overlaps the flexible substrate in a top view direction perpendicular to the first direction and the second direction.
    Type: Grant
    Filed: July 29, 2022
    Date of Patent: February 6, 2024
    Assignees: HannStar Display (Nanjing) Corporation, HANNSTAR DISPLAY CORPORATION
    Inventor: Yen-Chung Chen
  • Publication number: 20230411407
    Abstract: A display panel including a substrate, scan lines, data lines, and pixel structures is provided. The pixel structures are electrically connected to the data lines and the scan lines. Each pixel structure includes an active device, a pixel electrode, a capacitor electrode, a common electrode, an overcoat layer, a first passivation layer and a second passivation layer. The active device is electrically connected to the pixel electrode. The capacitor electrode is electrically connected to the pixel electrode. The common electrode is located between the capacitor electrode and the pixel electrode. The common electrode, the capacitor electrode and the pixel electrode overlap with each other. The overcoat layer is disposed between the common electrode and the first passivation layer. The second passivation layer is disposed between the common electrode and the pixel electrode.
    Type: Application
    Filed: May 9, 2023
    Publication date: December 21, 2023
    Applicant: HannStar Display Corporation
    Inventors: Cheng-Yen Yeh, Yen-Chung Chen, Mu-Kai Kang, Jing-Xuan Chen, Qi-En Luo
  • Publication number: 20230395610
    Abstract: A thin film transistor includes a substrate, a gate, a gate insulating layer, a semiconductor layer, a first conductive layer, a covering layer and a sidewall protection layer. The gate is disposed on the substrate, the gate insulating layer is disposed on the gate, and the semiconductor layer is disposed on the gate insulating layer. The first conductive layer is disposed on the semiconductor layer, and the first conductive layer includes copper. The covering layer is disposed on an upper surface of the first conductive layer, and the covering layer includes copper nitride. The sidewall protection layer is disposed on a side surface of the first conductive layer, and the sidewall protection layer includes copper nitride.
    Type: Application
    Filed: May 4, 2023
    Publication date: December 7, 2023
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Chiung-Chang Wu, Jeng-Long Sheu, Yu-Kai Chuang
  • Patent number: 11836310
    Abstract: A touch display apparatus is disclosed, which includes a touch display panel with an active area and a peripheral area. The touch display panel includes a substrate, touch electrodes, touch sensing lines, dummy touch sensing lines and transistors. The touch electrodes are disposed on the substrate and in the active area. Each touch sensing line is electrically connected to one of the touch electrodes. The touch sensing lines and the dummy touch sensing lines are in parallel with each other in the active area. The dummy touch sensing lines are electrically connected with each other. Each transistor has a first terminal, a second terminal and a control terminal. The first terminals of the transistors are electrically connected with each other, the second terminal of each transistor is electrically connected to one of the touch sensing lines, and the control terminals of the transistors are electrically connected with each other.
    Type: Grant
    Filed: October 24, 2022
    Date of Patent: December 5, 2023
    Assignee: HannStar Display Corporation
    Inventors: Sz-Kai Huang, Cheng-Yen Yeh, Mu-Kai Kang, Jing-Xuan Chen
  • Patent number: D1072809
    Type: Grant
    Filed: September 12, 2023
    Date of Patent: April 29, 2025
    Assignee: HannStar Display Corporation
    Inventors: Wei-Chieh Tseng, Meng-Ling Yang