Patents Assigned to Hannstar Display Corp.
  • Patent number: 8823695
    Abstract: The present invention provides a barrier device including an upper substrate, a lower substrate and a liquid crystal layer sandwiched between the upper substrate and the lower substrate. The upper substrate includes a first substrate and a first electrode, a first insulation layer and a plurality of first stripe electrodes sequentially formed on the first substrate. The lower substrate includes a second substrate and a second electrode, a second insulation layer and a plurality of second stripe electrodes sequentially formed on the second substrate. The present invention further provides a 3D display and a driving method for a barrier device.
    Type: Grant
    Filed: December 7, 2011
    Date of Patent: September 2, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Ra Bin Li, Heng Cheng Tseng, Mu Kai Kang, Feng Weei Kuo
  • Patent number: 8804076
    Abstract: The present invention provides a liquid crystal display device including a liquid crystal panel. The liquid crystal panel has a plurality of pixel regions, and the liquid crystal panel includes a first substrate, a second substrate, a liquid crystal layer, and a light-absorbing layer. The second substrate and the first substrate are disposed opposite to each other, and the liquid crystal layer is disposed between the first substrate and the second substrate. The light-absorbing layer is disposed between the first substrate and the second substrate in the pixel regions, and the light-absorbing layer is configured to absorb a light having a wavelength within a range between 380 nm and 560 nm.
    Type: Grant
    Filed: June 26, 2012
    Date of Patent: August 12, 2014
    Assignee: HannStar Display Corp.
    Inventors: Chih-Pin Lin, Chao-Hui Wu
  • Patent number: 8791928
    Abstract: The present invention provides a pixel driving method for a liquid crystal display. The pixel includes a storage capacitor and a liquid crystal capacitor. The pixel driving method includes steps of: providing a common voltage signal to a liquid crystal capacitor, and providing a bias signal to a storage capacitor wherein the bias signal is synchronized with the common voltage signal and the amplitude of the bias signal is larger than that of the common voltage signal.
    Type: Grant
    Filed: November 6, 2007
    Date of Patent: July 29, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Po-Yang Chen, Po-Sheng Shih, Tsu-Chiang Chang
  • Patent number: 8791917
    Abstract: A touch display device and a formation method thereof are provided. The touch display device includes a touch panel disposed on a first surface of a substrate of a display panel. A color filter layer is disposed on a second surface of the substrate. The touch panel includes a plurality of first and second conductive patterns arranged by two directions that are perpendicular to each other. A patterned isolation layer, having a first portion and a second portion, is formed over the first surface of the substrate, wherein the first portion is disposed at the intersection of the first and the second conductive patterns, and the second portion is disposed between the first and the second conductive patterns. The first portion has a height that is lower than a height of the second portion.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: July 29, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Yi-Chung Juan, Kuo-Sheng Lee, Chang-Ching Yeh, Chien-Ting Chan, Sung-Chun Lin
  • Publication number: 20140198277
    Abstract: A liquid crystal display includes a bottom substrate, at least one thin film transistor, an overcoat layer, a bottom common electrode, at least one pixel electrode and a liquid crystal layer. The thin film transistor is disposed on the bottom substrate, including a gate electrode, a source electrode and a drain electrode. The overcoat layer is disposed above the thin film transistor. The bottom common electrode is disposed on the overcoat layer. The pixel electrode is disposed above the bottom common electrode and electrically connected to the drain electrode. The liquid crystal layer is disposed above the pixel electrode.
    Type: Application
    Filed: April 17, 2013
    Publication date: July 17, 2014
    Applicant: HannStar Display Corp.
    Inventors: Chia-Hua Yu, Sung-Chun Lin, Chung-Lin Chang, Chien-Ting Chan, Hsuan-Chen Liu, Chun-Chin Tseng
  • Publication number: 20140198099
    Abstract: A display-mode switching device includes a substrate, a plurality of first electrode stripes, a plurality of second electrode stripes, a plurality of third electrode stripes, a fourth electrode stripes, and a common electrode covering a surface of the substrate. The first electrode stripes, the second electrode stripes, the third electrode stripes and the fourth electrode stripes are disposed on the insulating layer, and each first electrode stripe, each third electrode stripe, each second electrode stripe and each fourth electrode stripe are sequentially arranged along a direction.
    Type: Application
    Filed: April 10, 2013
    Publication date: July 17, 2014
    Applicant: HannStar Display Corp.
    Inventors: Heng-Cheng Tseng, Chih-Hsuan Lee
  • Patent number: 8766908
    Abstract: A touch panel is provided. The touch panel having a pixel area and a sensing area includes a first substrate and an opposite second substrate. A press sensing spacer is disposed on the sensing area of the first substrate. A press sensing stage is disposed on the sensing area of the second substrate, corresponding to the press sensing spacer. An alignment layer is disposed over the second substrate, covering the press sensing stage and the pixel area of the second substrate. In an embodiment, the height of the press sensing stage is greater than the height from the surface of the second substrate at the pixel area to the bottom of the alignment layer by at least 0.05 ?m.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: July 1, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Hsuan-Chen Liu, Yi-Chung Juan, Sung-Chun Lin, Wei-Chi Lin
  • Publication number: 20140168583
    Abstract: A pixel structure of a liquid crystal display panel includes a first substrate; a color filter layer formed on the first substrate, the color filter layer comprising a plurality of filtering areas for filtering light, and a plurality of blocking areas for blocking light; a main spacer formed on one of the blocking areas; a sub spacer formed on another one of the blocking areas; a second substrate; a thin film transistor formed on the second substrate; an insulating layer formed above the thin film transistor and the second substrate; a liquid crystal layer formed between the first substrate and the second substrate; wherein a distance from an upper surface of the insulating layer near the main spacer to the second substrate is greater than a distance from an upper surface of the insulating layer near the sub spacer to the second substrate.
    Type: Application
    Filed: October 21, 2013
    Publication date: June 19, 2014
    Applicant: HannStar Display Corp.
    Inventors: Hsien-Tang Hu, Ko-Ruey Jen, Jui-Chi Lai
  • Patent number: 8723776
    Abstract: A gate driving circuit receives a plurality of clock signals in a sequence and includes a plurality of cascaded drive units sequentially outputting an output signal, wherein a first-stage drive unit of the gate driving circuit receives a scan start signal or a scan end signal while a last-stage drive unit thereof receives a scan end signal or a scan start signal; wherein a driving direction of the gate driving circuit is reversed by reversing the sequence of the clock signals and exchanging the scan start signal and the scan end signal. The present invention further provides a driving method of a gate driving circuit.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: May 13, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Hsien Cheng Chang, Yan Jou Chen
  • Publication number: 20140111470
    Abstract: The present invention provides a three-dimensional touch display panel including a display panel and an integrated panel. The integrated panel is disposed on the display panel, and the integrated panel includes a first transparent substrate, a first patterned transparent conductive layer disposed on the first transparent substrate, a second transparent substrate disposed opposite to the first transparent substrate, a second patterned transparent conductive layer disposed between the first transparent substrate and the second transparent substrate, a first plate-shaped transparent conductive layer disposed on the second transparent substrate, and a liquid crystal layer disposed between the first patterned transparent conductive layer and the first transparent conductive layer. The first patterned transparent conductive layer includes a plurality of first electrode stripes sequentially arranged along a first direction.
    Type: Application
    Filed: July 26, 2013
    Publication date: April 24, 2014
    Applicant: HannStar Display Corp.
    Inventors: Hsu-Ho Wu, Chia-Hua Yu, I-Fang Wang, Kun-Cheng Lee, Feng-Wei Kuo, Heng-Cheng Tseng, Mu-Kai Kang, Guang-Shiung Chao
  • Patent number: 8704800
    Abstract: A photo element includes a capacitor, a switch thin film transistor (TFT), a charge thin film transistor, and a photo thin film transistor. A voltage is charged to the capacitor through the charge TFT, and the output voltage of the capacitor is read through the readout line. The photo-induced current will affect the output voltage of the capacitor; therefore it is employed to determine whether the photo element is touched. Later, a reverse-biased voltage is applied to the photo TFT, such that the threshold voltage and sensitivity of the photo TFT can be maintained.
    Type: Grant
    Filed: April 30, 2010
    Date of Patent: April 22, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Hung-Chang Chang, Yi-Chung Juan, Chao-Hui Wu
  • Patent number: 8698148
    Abstract: A display device and a fabrication method thereof are provided. The display device includes a first metal layer disposed on a display area and a peripheral area. An insulating layer covers the first metal layer. A patterned semiconductor layer is disposed on the insulating layer at the display area. A second metal layer is disposed on the patterned semiconductor layer and the insulating layer at the peripheral area. A transparent conductive layer directly covers the second metal layer. A protective layer completely covers the second metal layer, the patterned semiconductor layer and the transparent conductive layer. The protective layer includes a first portion, a second portion and a through hole, wherein the first portion has a height which is higher than a height of the second portion.
    Type: Grant
    Filed: March 15, 2012
    Date of Patent: April 15, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Rong-Bing Wu, Chien-Hao Wu, Po-Hsiao Chen
  • Publication number: 20140078270
    Abstract: A local stereo image display system controls an image output in a display area which includes a planar image frame and a stereo image frame. The planar image frame has a planar image region. The stereo image frame is disposed between two adjacent planar image frames and has a stereo image region. The planar image frame and the stereo image frame are outputted orderly with a display frequency. When the planar image frame is outputted, only the planar image region has image content, and when the stereo image frame is outputted, only the stereo image region has image content. An optical grating control signal is outputted according to the sequence of the planar image frame and the stereo image frame and is synchronized to the display frequency.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 20, 2014
    Applicant: HannStar Display Corp.
    Inventors: Wen-Zhe LIN, Chih-Husan LEE, Chun-Chin TSENG
  • Patent number: 8665234
    Abstract: Embodiments of the present invention employ resistance compensation to broaden voltage reading range of readout lines connected to a processing chip of an in cell touch panel. The resolution of the in cell touch panel is increased under the condition that the number of pins of the processing chip is not increased or is unchanged.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: March 4, 2014
    Assignee: HannStar Display Corp.
    Inventors: Yi-Chung Juan, Hsuan-Chen Liu, Sung-Chun Lin, Wen-Chi Lin
  • Patent number: 8662692
    Abstract: In a touch panel, a cover lens, a sensor unit, and a panel cell are assembled first via glue to form a panel component, where a concave portion is also formed at the side of the panel component. An assembling frame is used to extend into the concave portion and covering around the side and bottom of a backlight module so as to assemble the panel component with the backlight module. Wrapping tape and further fixtures that were used to combine the backlight module and the cell may be removed to reduce the overall cost of the touch panel, while the yield rate of the adhering process may be effectively promoted since the adhering process is done simply on glass components.
    Type: Grant
    Filed: October 3, 2011
    Date of Patent: March 4, 2014
    Assignee: HannStar Display Corp.
    Inventors: Hsin-Fu Huang, Yu-Kai Huang
  • Patent number: 8654526
    Abstract: A pedestal structure of a flat panel display is made storable and disposed at the bottom of a main body of the flat panel display. The pedestal structure has substantially similar shape as a container of the main body that contains the pedestal structure and is capable of being completely hid in the main body when the pedestal structure is not in use. The pedestal structure may be directly drawn out of and rotated with respect to the main body as the support of the main body.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: February 18, 2014
    Assignee: HannStar Display Corp.
    Inventors: Chao-Hsiung Wu, Chun-Ming Liu
  • Publication number: 20140043257
    Abstract: A touch module includes a display module, a touch sensing layer and a protecting substrate. The touch sensing layer includes a shielding part, a hardening layer and a flat layer. The hardening layer has an open slot near the shielding part for separating a portion from another portion of the hardening layer. The touch module will not have uneven surface occurred at stacking and bending positions of the edge of the touch module and can avoid the occurrence of mura phenomenon, so as to enhance the display effect of the touch module. In addition, the flat layer is covered onto the hardening layer and the open slot, so that pattern of the touch sensing layer is mild visually, so as to improve the visual effect of the display of the touch module.
    Type: Application
    Filed: March 19, 2013
    Publication date: February 13, 2014
    Applicant: Hannstar Display Corp.
    Inventors: KUO-SHENG LEE, SUNG-CHUN LIN, CHIEN-TING CHAN
  • Publication number: 20140044229
    Abstract: A shift register and a voltage adjusting circuit and method thereof are disclosed. The voltage adjusting circuit includes a first input terminal, a second input terminal, a transistor, a first capacitor, a second capacitor, and an output terminal. The first input terminal receives a second clock signal. The second input terminal receives a fourth clock signal. The transistor has a source electrode, a drain electrode, and a gate electrode. The source electrode is coupled to ground and the gate electrode is coupled to the second input terminal. The first capacitor is coupled between the drain electrode and the first input terminal. One end of second capacitor is coupled between the first capacitor and drain electrode, and the other end of second capacitor is coupled between the second input terminal and gate electrode. The output terminal is coupled between the first capacitor and drain electrode to output an adjusted voltage.
    Type: Application
    Filed: August 12, 2013
    Publication date: February 13, 2014
    Applicant: HannStar Display Corp.
    Inventors: Chien-Ting CHAN, Chung-Lin CHANG, Kuo-Sheng LEE
  • Patent number: 8648981
    Abstract: The display apparatus includes a backlight module, which includes a light source, a light-emitting surface, a light-emitting counter surface and a flexible circuit. The light-emitting counter surface is disposed opposite to the light-emitting surface. The flexible circuit is electrically connected with the light source, and has a portion covering the light-emitting counter surface.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: February 11, 2014
    Assignee: Hannstar Display Corp.
    Inventors: Dong-Xian Yu, Ying-Che Huang
  • Patent number: 8643031
    Abstract: There is provided a pixel structure of a liquid crystal panel including a transparent substrate, and a gate line, a data line, a switching transistor, a first electrode, a second electrode and a shield layer formed on the transparent substrate. The gate line is substantially perpendicular to the data line. The switching transistor is located adjacent to a crossing point of the gate line and the data line, and is configured to input a display voltage of the data line to the second electrode according to the control of the gate line. The first electrode and the second electrode are arranged in such a way that the display voltage forms a transverse electric field between the first electrode and the second electrode. The shield layer overlaps at least a part of the gate and is electrically isolated from the first electrode and the second electrode.
    Type: Grant
    Filed: December 19, 2011
    Date of Patent: February 4, 2014
    Assignee: HannStar Display Corp.
    Inventors: Chia Hua Yu, I Fang Wang, Feng Weei Kuo, Jui Chi Lai, Ko Ruey Jen, Guang Shiung Chao