Patents Assigned to Chunghwa Picture Tubes, Ltd.
  • Publication number: 20180329431
    Abstract: A thermal image positioning system and a positioning method thereof are provided. The thermal image positioning method includes: configuring a plurality of thermal image generators in a space, where the thermal image generators respectively generate a plurality of thermal images; making a carrier to move according to the thermal images, providing a thermal image receiver to respectively receive the thermal images, and respectively generating a plurality of distance information according to the thermal images; and generating coordinate information of the space according to the distance information.
    Type: Application
    Filed: July 18, 2017
    Publication date: November 15, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Min-Chung Cheng, Chun-Wei Wang, Ru-Yi Hsieh
  • Patent number: 10127873
    Abstract: A display device including scan lines, data lines, k clock signal lines and pixel groups is provided. The pixel groups are respectively driven by the data lines, the corresponding scan lines and the corresponding clock signal lines. Each pixel group includes pixel units respectively configured at intersections of the data lines and the corresponding scan lines, where the scan lines in each pixel group receive a same scan driving signal. Each pixel unit includes two switches and a pixel electrode. Conduction states of the two switches are respectively controlled by the corresponding scan line and the corresponding clock signal line, where clock signals of the clock signal lines corresponding to the pixel units on the adjacent scan lines have a phase difference of 1/k cycle.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: November 13, 2018
    Assignee: Chunghwa Picture Tubes, Ltd.
    Inventor: Wei-Lung Li
  • Publication number: 20180321561
    Abstract: A touch display device including a lower substrate, an active device array disposed on the lower substrate, a passivation layer covering the active device array, touch electrodes disposed on the passivation layer, an upper substrate, a display medium disposed between the upper substrate and the touch electrodes, an upper polarizing plate and a signal transmission line is provided. ?? of the display medium is smaller than 0. The upper polarizing plate is disposed at one side of the upper substrate located away from the display medium, and has an adhesion layer to adhere the upper polarizing plate and the upper substrate, where a sheet resistance of the adhesion layer is smaller than or equal to 109?/?. The signal transmission line is disposed in a non-display area, and has a first end and a second end respectively connected to the adhesion layer and the lower substrate.
    Type: Application
    Filed: June 9, 2017
    Publication date: November 8, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventor: Jiun-Jr Huang
  • Patent number: 10115781
    Abstract: A pixel array substrate includes a first substrate, pixel units, data lines, scan lines, constant voltage lines, a constant voltage source, a constant voltage pad, and a conductive pattern. The first substrate has pixel regions and a peripheral region surrounding the pixel regions. The conductive pattern includes conductive lines interlaced with each other to form a net and a conductive frame that surrounds and is electrically coupled to the conductive lines. The conductive frame is in electrical contact with the constant voltage pad within the peripheral region. Each pixel region is defined by two adjacent scan lines and two adjacent data lines. A portion of one of the constant voltage lines located completely within each of the pixel regions is in electrical contact with one of the conductive lines within the pixel region. An OLED display including the pixel array substrate and another OLED are also provided.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: October 30, 2018
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventors: Szu-Chi Huang, Chin-Hai Huang, Bo-Jhang Sun
  • Publication number: 20180268771
    Abstract: A display panel includes a substrate, a plurality of pixels, a plurality of scan lines, a pull-down control circuit, and a gate driving circuit. The pixels are disposed on a display area of the substrate. The scan lines are disposed on the substrate and respectively coupled to the corresponding pixels. The pull-down control circuit is disposed on a peripheral area of the substrate, receives a plurality of clock signals, and has a plurality of pull-down units to provide a plurality of pull-down signals. The gate driving circuit is disposed on the peripheral area and has a plurality of shift registers. The shift registers are coupled to the scan lines to provide a plurality of gate driving signals and pull down the gate driving signals in sequence according to the pull-down signals. The pull-down control circuit and the gate driving circuit are arranged along a side of the display area.
    Type: Application
    Filed: May 24, 2018
    Publication date: September 20, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Wei-Lung Li, Chih-Wen Lai
  • Publication number: 20180261176
    Abstract: A display device including scan lines, data lines, k clock signal lines and pixel groups is provided. The pixel groups are respectively driven by the data lines, the corresponding scan lines and the corresponding clock signal lines. Each pixel group includes pixel units respectively configured at intersections of the data lines and the corresponding scan lines, where the scan lines in each pixel group receive a same scan driving signal. Each pixel unit includes two switches and a pixel electrode. Conduction states of the two switches are respectively controlled by the corresponding scan line and the corresponding clock signal line, where clock signals of the clock signal lines corresponding to the pixel units on the adjacent scan lines have a phase difference of 1/k cycle.
    Type: Application
    Filed: April 6, 2017
    Publication date: September 13, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventor: Wei-Lung Li
  • Patent number: 10074302
    Abstract: A display apparatus including a first substrate, a second substrate opposite to the first substrate, a pixel array disposed between the first substrate and the second substrate and a photoelectric conversion array disposed between the pixel array and the second substrate is provided. The pixel array includes sub-pixel units. An initial light from each of the sub-pixel units is converted into an electrical energy and a display light by the photoelectric conversion array. The electrical energy is stored and the display light passes through the second substrate to display an image. Display lights presented by two adjacent sub-pixel units have different wavelengths. The photoelectric conversion array includes photoelectric conversion cells. An area of each of the photoelectric conversion cells covers the two adjacent sub-pixel units and partially overlaps an area of another photoelectric conversion cell.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: September 11, 2018
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventors: Sheng-Fa Liu, Ji-Yi Chiou
  • Patent number: 10068522
    Abstract: A pixel array includes a plurality of pixels. Each pixel has a first sub-pixel, a second sub-pixel, and a pair of third sub-pixels. The first sub-pixel of each pixel and the first sub-pixels of three adjacent pixels are arranged in a two by two array, the second sub-pixel of each pixel and the second sub-pixels of three adjacent pixels are arranged in a two by two array, and one of each of the third sub-pixels of each pixel and one of the third sub-pixels of three adjacent pixels are arranged in a two by two array. A scan line is connected to a switch unit of each of the sub-pixels in a pixel.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: September 4, 2018
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventors: Yen-Yu Huang, Chin-Hai Huang, Chi-Chung Tsai, Szu-Chi Huang
  • Patent number: 10067373
    Abstract: A display panel has active region, peripheral region, and includes active device array substrate, color filter substrate, spacers, and display medium. The active device array substrate includes first substrate and active device array layer. The color filter substrate includes second substrate, black matrix layer, overcoat layer, and color filter layer. The color filter layer includes color filter patterns in active region and dummy color filter patterns in peripheral region. The color filter patterns and the dummy color filter patterns define a portion of blank areas outside areas of the color filter patterns and the dummy color filter patterns arranged in a first direction. The dummy color filter patterns includes an opening to define another portion of the blank areas. The blank areas include first blank areas in active region and second blank areas in peripheral region. The first and second blank areas have different widths in the first direction.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: September 4, 2018
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventor: Tai-Ching Yu
  • Publication number: 20180228103
    Abstract: Provided is a cultivation device, including a planting trough, a first auxiliary member and a second auxiliary member. A plant is cultivated in the planting trough. The first auxiliary member and the second auxiliary member are fixed on the planting trough and tilt toward an outside of the planting trough, and here the first auxiliary member and the second auxiliary member are opposite in tilting direction. The plant grows from the planting trough along the first auxiliary member and the second auxiliary member. The cultivation device provided in this invention may utilize space effectively for the plant to grow and is conducive to mechanical harvesting and/or hand harvesting.
    Type: Application
    Filed: April 6, 2017
    Publication date: August 16, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Shih-Wei Su, Ru-Yi Hsieh, Chou-Chiang Kuo
  • Publication number: 20180224684
    Abstract: Provided is a touch display device that includes a first substrate, an active component, a first insulating layer, a touch trace, a second insulating layer, a common electrode, a third insulating layer, a pixel electrode, a second substrate, and a display medium. The second insulating layer covers the first insulating layer and has a first opening that exposes the touch trace. The common electrode is disposed on the second insulating layer and fills in the first opening so as to be electrically connected to the touch trace. The pixel electrode has a plurality of slits. The second substrate has a spacer that extends towards the first substrate. The spacer is disposed above the first opening, and an orthographic projection of the spacer on the first substrate is within an orthographic projection of the first opening on the first substrate.
    Type: Application
    Filed: March 27, 2017
    Publication date: August 9, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventor: Cheng-Feng Su
  • Patent number: 10030301
    Abstract: An upright target structure includes a target main body. The target main body has a first surface and a second surface opposite to each other. The first surface is configured to connect with a back plate. The target main body further has a third surface, a fourth surface, a fifth surface and a sixth surface. The third surface connects with the first surface and the second surface. The fourth surface is opposite to the third surface and connects with the first surface. The fifth surface is opposite to the third surface and connects with the second surface. The sixth surface connects with the fourth surface and the fifth surface. The sixth surface is away from the first surface as getting close to the fifth surface.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: July 24, 2018
    Assignee: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Hsi-Yu Wu, Po-Hsu Tsai
  • Patent number: 10025133
    Abstract: A liquid crystal display device comprises an array substrate, a liquid crystal layer, and a color filter substrate. The liquid crystal layer is disposed between the array substrate and the color filter substrate. The color filter substrate includes a base material, an overcoat, a color filter layer and first transparent electrode patterns. The overcoat is disposed between the base material and the liquid crystal layer. The color filter layer is disposed between the base material and the overcoat, and includes color filter elements separated from each other and black matrixes. The first transparent electrode patterns are disposed between the overcoat and the liquid crystal layer, and are separated from each other and opposed to the black matrixes. A width of each of the black matrixes is equal to or greater than a width of each of the first transparent electrode patterns.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: July 17, 2018
    Assignee: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Ming-Hsiung Fan, Chih-Chien Tung, Chih-Chuan Chen
  • Patent number: 10019958
    Abstract: A display panel includes a substrate, a plurality of pixels, a plurality of scan lines, a pull-down control circuit, and a gate driving circuit. The pixels are disposed on a display area of the substrate. The scan lines are disposed on the substrate and respectively coupled to the corresponding pixels. The pull-down control circuit is disposed on a peripheral area of the substrate, receives a plurality of clock signals, and has a plurality of pull-down units to provide a plurality of pull-down signals. The gate driving circuit is disposed on the peripheral area and has a plurality of shift registers. The shift registers are coupled to the scan lines to provide a plurality of gate driving signals and pull down the gate driving signals in sequence according to the pull-down signals. The pull-down control circuit and the gate driving circuit are arranged along a side of the display area.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: July 10, 2018
    Assignee: Chunghwa Picture Tubes, LTD.
    Inventors: Wei-Lung Li, Chih-Wen Lai
  • Publication number: 20180187078
    Abstract: A liquid crystal composition is provided. The liquid crystal composition includes a liquid crystal body, a first monomer, and an initiator. The first monomer is selected from one of a monomer shown in formula 1, a monomer shown in formula 2, and a monomer shown in formula 3; wherein the definitions of R1, R2, R3, R4, R5, and R6 are as provided in the specification. Based on the total weight of the liquid crystal composition, the content of the liquid crystal body is 50 wt % to 90 wt %, the content of the first monomer is 2 wt % to 30 wt %, and the content of the initiator is 0.5 wt % to 3 wt %.
    Type: Application
    Filed: April 17, 2017
    Publication date: July 5, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Shin-Yi Cheng, Chien-Hua Chen, Jan-Tian Lian
  • Publication number: 20180182327
    Abstract: A liquid crystal display (LCD) device and a driving method thereof are provided. Data lines are grouped into a plurality of data line groups according to polarities of data driving signals corresponding to the data lines, and the data line groups are respectively driven, where driving periods of the data line groups are spaced by a predetermined time interval, so as to effetely decrease a coupling effect and greatly improve the display quality of the LCD device.
    Type: Application
    Filed: March 6, 2017
    Publication date: June 28, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Yi-Hsing Huang, Hsin-Chung Huang
  • Patent number: 10008171
    Abstract: A gate driving circuit is provided. The gate driving circuit includes multistage driving modules, where an Nth stage driving module includes a setting circuit, a first driving circuit, an isolating switch circuit, a second driving circuit and an anti-noise circuit. The setting circuit generates a first precharge signal according to a gate driving signal of an (N?2)th scan line or a start signal. The isolating switch circuit coupled between the first driving circuit and the second driving circuit provides a second precharge signal, so as to effectively avoid a flickering problem of a display image caused by a surge of the gate driving signal due to a coupling effect of a parasitic capacitance of the transistor and a bootstrap capacitor, and meanwhile the bootstrap capacitor is not used, so as to effectively reduce a bezel area.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: June 26, 2018
    Assignees: Chunghwa Picture Tubes, Ltd., National Chiao Tung University
    Inventors: Wei-Lien Sung, Han-Lung Liu, Wen-Chuan Wang, Chi-Liang Kuo, Yuan-Hao Chang, Wen-Che Wang, Po-Tsun Liu, Guang-Ting Zheng, Yu-Fan Tu
  • Publication number: 20180175206
    Abstract: The invention relates to a thin-film transistor and a manufacturing method thereof. The manufacturing method of the thin-film transistor includes the following steps: an insulating layer is formed to cover a gate on a substrate; a semiconductor pattern having a first region and a second region is formed on the insulating layer; a plurality of island patterns is formed, wherein at least a portion of the plurality of island patterns is disposed on the semiconductor pattern, and the plurality of island patterns is separated from one another by a gap; and a source and a drain are formed to cover a portion of the plurality of island patterns and fill the gaps to respectively be electrically connected to the first region and the second region of the semiconductor pattern.
    Type: Application
    Filed: January 3, 2017
    Publication date: June 21, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Chin-Tzu Kao, Chung-Hsu Wang
  • Publication number: 20180166036
    Abstract: A display apparatus including scan lines, data lines, k clock signal lines and pixel groups is provided. k is an integer greater than 1. The pixel groups are respectively driven by the k clock signal lines, the data lines and their corresponding scan lines. Each pixel group includes pixel units respectively disposed at intersections of the corresponding scan lines and data lines. Each pixel unit includes a first switch, a second switch, a third switch, a fourth switch, a first pixel electrode and a second pixel electrode. The switches coupled to the common data line are driven by the scan lines in cooperation with the clock signal lines to reduce output signal lines of the driving circuit and a circuit layout area in favor of achieving a narrow-frame display apparatus and reduction in production cost of the display apparatus.
    Type: Application
    Filed: February 3, 2017
    Publication date: June 14, 2018
    Applicant: Chunghwa Picture Tubes, LTD.
    Inventors: Wei-Lung Li, Ying-Chung Lo
  • Patent number: 9966032
    Abstract: A driving circuit in this disclosure includes plural stages of shift register circuits. Every stage in the shift register circuits includes an enabling control circuit, a first output circuit, a second output circuit and a disabling control circuit. The enabling circuit is configured to control the voltage of the first operation node according to enabling signal. The first output unit is configured to generate the first driving signal according to the voltage of the first operation node and the first clock signal. The second output unit is configured to generate the second driving signal according to the voltage of the first operation node and the second clock signal. The disabling control unit is used to pull low the voltage of the first operation node and output terminal of the first and second output unit to the reference voltage according to the first, third, and fourth clock signals.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: May 8, 2018
    Assignee: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Han-Lung Liu, Wei-Lien Sung, Wen-Chuan Wang, Shao-Lun Chang, Shih-Chieh Lin