Patents Assigned to Hannstar Display Corporation
  • Patent number: 11360599
    Abstract: A touch display device includes a substrate, a plurality of touch electrodes, a plurality of touch signal lines and a plurality of dummy signal lines disposed on the substrate. The touch electrodes are arranged in i number of touch electrode columns and j number of touch electrode rows, the touch signal lines and the dummy signal lines are divided into i number of groups, each of the groups includes j number of touch signal lines and k number of dummy signal lines, and j number of touch signal lines are disposed between a portion of the k number of dummy signal lines and a remaining portion of the k number of dummy signal lines in each of the i number of groups, wherein i, j, and k are positive integers greater than or equal to two.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: June 14, 2022
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: I-Hsuan Chen, Mu-Kai Kang, Cheng-Yen Yeh
  • Publication number: 20220164052
    Abstract: A touch display device is disclosed. The touch display device includes a substrate, a scan line, a data line, a scan signal line, a thin film transistor, a touch signal line and a touch electrode. The scan line, the data line, the scan signal line, the thin film transistor, the touch signal line and the touch electrode are disposed on the substrate. An extending direction of the scan line is different from an extending direction of the data line, and the scan line and the data line are electrically connected to the thin film transistor. An extending direction of the scan signal line is different from the extending direction of the scan line, and the scan signal line is electrically connected to the scan line. The touch signal line is electrically connected to the touch electrode.
    Type: Application
    Filed: November 9, 2021
    Publication date: May 26, 2022
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Sz-Kai Huang, Cheng-Yen Yeh, Mu-Kai Kang, Jing-Xuan Chen
  • Publication number: 20220155902
    Abstract: The disclosure provides a touch-sensing panel, which includes a substrate, a first mesh pattern, an insulating layer, and a second mesh pattern. The substrate has an active area and a peripheral area. The first mesh pattern is located in the active area. The insulating layer is disposed on the first mesh pattern. The second mesh pattern is located in the active area. At least a part of the second mesh pattern is disposed on the insulating layer. Each of the first mesh pattern and the second mesh pattern includes a plurality of mesh lines. A reflectivity of a surface of one of the first mesh pattern and the second pattern is smaller than a reflectivity of a surface of the other of the first mesh pattern and the second mesh pattern, and a width of each of the mesh lines of the one of the first mesh pattern and the second mesh pattern is smaller than a width of each of the mesh lines of the other of the first mesh pattern and the second mesh pattern.
    Type: Application
    Filed: October 27, 2021
    Publication date: May 19, 2022
    Applicant: HannStar Display Corporation
    Inventors: Yao-Chih Chuang, Mei-Ling Chou, Ming-Liang Chen, Chih-Wei Chen, Chia-Yu Liu
  • Publication number: 20220128858
    Abstract: The invention provides a display panel, which includes a first substrate, a second substrate, a liquid crystal layer, a light shielding pattern layer and a plurality of pixel structures. The liquid crystal layer is disposed between the first substrate and the second substrate, and includes a plurality of negative liquid crystal molecules. Each of the pixel structures includes a first electrode and a second electrode. The first electrode has an electrode opening and a first finger portion extending into the electrode opening. The second electrode has two second finger portions overlapping the electrode opening. The first finger portion and the two second finger portions are alternately arranged along a first direction inside the electrode opening and extend in a second direction.
    Type: Application
    Filed: October 12, 2021
    Publication date: April 28, 2022
    Applicant: HannStar Display Corporation
    Inventors: Chia-Hua Yu, Kun Tsai Huang, Feng-Wei Kuo, Luo-Yi Wu
  • Publication number: 20220118743
    Abstract: The disclosure provides an electromagnetic shielding substrate including a first substrate and an auxiliary layer. The auxiliary layer is disposed on the first substrate and directly contacts the first substrate. The auxiliary layer includes a first sublayer and a second sublayer. The second sublayer is connected between the first sublayer and the first substrate. The chemical ingredient of the first sublayer is MxOy, and the chemical ingredient of the second sublayer is MxOz, and M is selected from one of Nb, Mo, Ta, Te, Ti, Tl, Y, Yb, Zr, and Zn, where x and y are positive integers, and y?1<z<y. A display panel using the above electromagnetic shielding substrate is also provided.
    Type: Application
    Filed: August 19, 2021
    Publication date: April 21, 2022
    Applicant: HannStar Display Corporation
    Inventors: Yao-Chih Chuang, Chia-Yu Liu, Chih-Wei Chen, Mei-Ling Chou, Ming-Liang Chen
  • Patent number: 11307725
    Abstract: A mask including a substrate and a mesh pattern are disclosed along with an electronic device. The mesh pattern, being disposed on the substrate, includes a first striped pattern and a second striped pattern; the first striped pattern includes a first, second, and third section, and the second section is disposed between the first and the third sections; the second striped pattern includes a fourth, fifth, and sixth section, and the fifth section is disposed between the fourth and the sixth sections; the first section has a first extension direction, the fourth section has a second extension direction, and a first included angle is between the first extension direction and the second extension direction; the fifth section and the second section intersect each other while having a second included angle between the two sections, and the second included angle is greater than the first included angle.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: April 19, 2022
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Mei-Ling Chou, Chih-Wei Chen, Chia-Yu Liu, Ming-Liang Chen, Yao-Chih Chuang
  • Patent number: 11308839
    Abstract: A signal generating circuit for providing signals to a gate driving circuit of a display device is provided. The gate driving circuit has plural shift registers each having a main circuit unit and a discharge circuit unit. The discharge circuit units of at least some of the shift registers are configured to receive a pull-down control signal. The main circuit unit of a first stage shift register of the shift registers is configured to receive a starting signal. The signal generating circuit includes a first circuit unit that is configured to output the pull-down control signal and the starting signal to the gate driving circuit. The starting signal switches from a disabling voltage level to an enabling voltage level at a first time point. The pull-down control signal switches from a disabling voltage level to an enabling voltage level at a second time point before the first time point.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: April 19, 2022
    Assignee: HannStar Display Corporation
    Inventors: Yu-Cheng Lin, Chien-Ting Chan, Chih-Hsuan Lee
  • Patent number: 11291112
    Abstract: A method for manufacturing a flexible panel is provided, and the method includes following steps. A column is formed on a carrier substrate. A flexible layer is formed on the carrier substrate, where at least a part of a side surface of the column is surrounded by the flexible layer, so as to form a through hole in the flexible layer. A component layer is formed on the flexible layer, and the column and the carrier substrate are removed. No chars, cracks, and cutting marks are formed on an edge of the through hole of the flexible panel.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: March 29, 2022
    Assignee: HannStar Display Corporation
    Inventors: Yao-Chih Chuang, Mei-Ling Chou, Chih-Wei Chen, Ming-Chang Yu, Chia-Yu Liu, Yen-Chung Chen
  • Publication number: 20220050538
    Abstract: A touch panel is disclosed by the present invention. The touch panel comprises a substrate, a first conductive layer, a metal mesh layer and a second conductive layer. The substrate comprises a first surface and a second surface opposite to the first surface. The first conductive layer is disposed on the first surface of the substrate, and the first conductive layer comprises a plurality of sensing electrodes. The metal mesh layer is disposed on the second surface of the substrate. The second conductive layer is disposed on the second surface of the substrate, and the metal mesh layer is disposed between the second conductive layer and the second surface of the substrate.
    Type: Application
    Filed: July 12, 2021
    Publication date: February 17, 2022
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Mei-Ling Chou, Yao-Chih Chuang, Chih-Wei Chen, Chia-Yu Liu, Ming-Chang Yu
  • Publication number: 20220020313
    Abstract: A driving method of a display panel is provided by the present invention. First, a display panel including sub-pixels, gate lines, two gate driver circuits and clock signal lines is provided. Each of the gate lines is electrically connected to a portion of the sub-pixels, and each of the gate lines is electrically connected to one of the gate driver circuits. Each of the gate driver circuits is electrically connected to a portion of the clock signal lines. Moreover, the gate driver circuits is controlled through the clock signal lines to output scan signals to the gate lines in a plurality of frames. Furthermore, make the gate driver circuits have a first scan order in a first frame, and make the gate driver circuits have a second scan order in a second frame, and the first scan order is different from the second scan order.
    Type: Application
    Filed: June 16, 2021
    Publication date: January 20, 2022
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: Cheng-Yen Yeh, I-Hsuan Chen, Mu-Kai Kang, Sz-Kai Huang
  • Patent number: 11209705
    Abstract: A display panel has an odd-shaped active area and a peripheral area. The display panel includes a substrate, pixel units, gate lines and at least one dummy thin film transistor. The pixel units are disposed on the active area of the substrate. The gate lines are disposed on the substrate, each of the gate lines is coupled to one or more of the pixel units, and the number of pixel units coupled to a first gate line of the gate lines is smaller than the number of pixel units a second gate line coupled to of the gate lines. The dummy thin film transistor is disposed on the substrate, and is coupled to the first gate line.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: December 28, 2021
    Assignee: HannStar Display Corporation
    Inventors: Chia-Hua Yu, Sung-Chun Lin, Hsien-Tang Hu, Hsuan-Chen Liu, Chien-Ting Chan
  • Publication number: 20210389631
    Abstract: A pixel array substrate including a substrate, a plurality of pixel structures, and a flat layer is provided. The pixel structures are correspondingly disposed in pixel regions of the substrate. At least one of pixel structure includes an active element, a reflective electrode, and an auxiliary electrode. The reflective electrode is electrically connected to the active element. The auxiliary electrode is electrically connected to the reflective electrode and the active element. A vertical projection of the reflective electrode on the substrate overlaps a vertical projection of the auxiliary electrode on the substrate. An area of the vertical projection of the reflective electrode on the substrate is not greater than an area of the vertical projection of the auxiliary electrode on the substrate. The flat layer is disposed between the auxiliary electrode and the active element. A display device by using the pixel array substrate is also provided.
    Type: Application
    Filed: May 25, 2021
    Publication date: December 16, 2021
    Applicant: HannStar Display Corporation
    Inventors: Mei-Ling Chou, Yao-Chih Chuang, Chih-Wei Chen, Ming-Chang Yu, Chia-Yu Liu
  • 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: 11189240
    Abstract: A gate driving circuit is provided, which includes shift registers and a reset signal line. The shift registers respectively provide scan signals to gate lines of a display panel. Each shift register includes a precharge unit and pull-up unit. The precharge unit is coupled to a first node and outputs a precharge signal through the first node. The pull-up unit is coupled to the first node and the second node and outputs one of the scan signals to a corresponding one of the gate lines through the second node. The reset signal line is coupled to the shift registers and provides a reset signal to the shift registers. The reset signal is used to reset the shift registers after the shift registers respectively output the scan signals. The reset signal line is arranged between a layout area of the precharge unit and a layout area of the pull-up unit.
    Type: Grant
    Filed: March 25, 2019
    Date of Patent: November 30, 2021
    Assignee: HannStar Display Corporation
    Inventors: Sung-Chun Lin, Chien-Ting Chan
  • Publication number: 20210349565
    Abstract: A touch display device includes a substrate, a plurality of touch electrodes, a plurality of touch signal lines and a plurality of dummy signal lines disposed on the substrate. The touch electrodes are arranged in i number of touch electrode columns and j number of touch electrode rows, the touch signal lines and the dummy signal lines are divided into i number of groups, each of the groups includes j number of touch signal lines and k number of dummy signal lines, and j number of touch signal lines are disposed between a portion of the k number of dummy signal lines and a remaining portion of the k number of dummy signal lines in each of the i number of groups, wherein i, j, and k are positive integers greater than or equal to two.
    Type: Application
    Filed: July 20, 2021
    Publication date: November 11, 2021
    Applicant: HANNSTAR DISPLAY CORPORATION
    Inventors: I-Hsuan Chen, Mu-Kai Kang, Cheng-Yen Yeh
  • 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
  • Patent number: 11112641
    Abstract: The present invention provides a display panel having a display region and a peripheral region, and the display panel includes a plurality of pixel units including at least one inner pixel unit and at least one first peripheral pixel unit, and a shielding layer. A shape of the display region is non-rectangular. The inner pixel unit is disposed in the display region and includes at least one inner sub-pixel unit. The first peripheral pixel unit is disposed in both the display region and the peripheral region and includes at least one first peripheral sub-pixel unit. At least a part of the shielding layer is disposed in the peripheral region, and the at least a part partially overlaps the first peripheral pixel unit. A structure of the first peripheral pixel unit is different from a structure of the inner pixel unit.
    Type: Grant
    Filed: January 16, 2020
    Date of Patent: September 7, 2021
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Chung-Lin Chang, Hsuan-Chen Liu, Kun-Tsai Huang
  • Patent number: 11106304
    Abstract: A touch display device including a display region and a peripheral region comprises a substrate, a plurality of scan lines and a plurality of data lines disposed on the substrate, a plurality of thin film transistors disposed on the substrate, a plurality of pixel electrodes disposed on the substrate and in the display region, and a plurality of touch electrodes and a plurality of touch signal lines disposed on the substrate. In the display region, three data lines of the plurality of data lines are located between two touch signal lines of the plurality of touch signal lines, and in the peripheral region, one of the two touch signal lines is at least partially overlapped with one of the three data lines, and two other data lines of the three data lines are at least partially overlapped with each other.
    Type: Grant
    Filed: July 6, 2020
    Date of Patent: August 31, 2021
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: I-Hsuan Chen, Mu-Kai Kang, Cheng-Yen Yeh
  • Patent number: 11092859
    Abstract: The present invention provides a display panel, the display panel includes at least one first inner sub-pixel disposed in a display region of the display panel and a plurality of first compensation sub-pixels disposed between an end of the first sub-pixel column and the first inner sub-pixel, and a shape of the display region is non-rectangular. Each of the first inner sub-pixel and the first compensation sub-pixels includes a sub-pixel unit, a light shielding sub-block and a color filter block, structures of the sub-pixel units of the first compensation sub-pixels are different from a structure of the sub-pixel unit of the first inner sub-pixel, and the structures of the sub-pixel units of the first compensation sub-pixels are different from each other.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: August 17, 2021
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Chung-Lin Chang, Hsien-Tang Hu, Kun-Tsai Huang
  • Patent number: D946569
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: March 22, 2022
    Assignee: HANNSTAR DISPLAY CORPORATION
    Inventors: Ya-Hui Yang, Li-Fu Ho, Pei-I Hsu, Kuo-Yuan Lin