WO2021120283A1 - Structure de pixel et écran d'affichage - Google Patents

Structure de pixel et écran d'affichage Download PDF

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Publication number
WO2021120283A1
WO2021120283A1 PCT/CN2019/128971 CN2019128971W WO2021120283A1 WO 2021120283 A1 WO2021120283 A1 WO 2021120283A1 CN 2019128971 W CN2019128971 W CN 2019128971W WO 2021120283 A1 WO2021120283 A1 WO 2021120283A1
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WO
WIPO (PCT)
Prior art keywords
transistor
pixel
electrically connected
sub
pixel electrode
Prior art date
Application number
PCT/CN2019/128971
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English (en)
Chinese (zh)
Inventor
何孝金
Original Assignee
深圳市华星光电半导体显示技术有限公司
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Publication of WO2021120283A1 publication Critical patent/WO2021120283A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells

Definitions

  • This application belongs to the field of display technology, and in particular relates to a pixel structure and a display panel.
  • Pixel is the smallest unit of display screen.
  • a display picture is composed of pixels, and each pixel has the same size and shape. The more pixels the picture contains, the more refined the picture will be. The refinement of pixels is the first important feature of the display, which is related to the viewing distance, screen size, pixel size and number of pixels.
  • the liquid crystal display panel is usually composed of a color filter substrate, a thin film transistor array substrate, and a liquid crystal layer arranged between the two substrates. Pixel electrodes and common electrodes are respectively arranged on the opposite inner sides of the two substrates, and the liquid crystal molecules are controlled to change direction by applying voltage. , Refract the light from the backlight module to produce a picture.
  • Liquid crystal displays include twisted nematic (TN) mode, electronically controlled birefringence (ECB) mode, vertical alignment (VA) and other display modes.
  • TN twisted nematic
  • EAB electronically controlled birefringence
  • VA vertical alignment
  • VA mode is a kind of high contrast, wide viewing angle, no rubbing and other advantages Common display mode.
  • the VA mode uses a vertically rotating liquid crystal, the difference in the birefringence of the liquid crystal molecules is relatively large, resulting in a serious color shift problem under a large viewing angle.
  • the two data lines are symmetrically arranged on both sides of the pixel electrode, and the shared line is arranged in the middle to achieve left-right symmetry of the pixel structure, so that the number of data lines for the entire display panel More, it is not conducive to cost saving.
  • the present application provides a pixel structure and a display panel, which can solve the problem of existing word counts.
  • the present application provides a pixel structure, the pixel structure includes a plurality of pixels arranged in a matrix, each of the pixels includes: a main pixel area and a sub-pixel area, the main pixel area The pixel area is arranged adjacent to the sub-pixel area; a pixel electrode includes a main pixel electrode provided in the main pixel area and a sub-pixel electrode provided in the sub-pixel area; a data line and a shared line, so The data line and the sharing line are symmetrically arranged under the pixel electrode; a gate line is arranged between the main pixel area and the sub pixel area; a first transistor, the gate of the first transistor The electrode is electrically connected to the gate line, the source of the first transistor is electrically connected to the data line, the drain of the first transistor is electrically connected to the main pixel electrode; a second transistor , The gate of the second transistor is electrically connected to the gate line, the source of the second transistor is electrically connected to the data line, and the drain
  • the pixel structure adopts an 8-domain structure, and the main pixel area and the sub-pixel area each correspond to four domains of liquid crystal molecules.
  • the pixel structure is a PSVA pixel.
  • the materials of the main pixel electrode and the sub-pixel electrode both include indium tin oxide.
  • the gates of the first transistor, the second transistor, and the third transistor and the scan line are made of the same metal layer.
  • the source and drain of the first transistor, the second transistor and the third transistor and the data line are made of the same metal layer.
  • the present application provides a pixel structure, the pixel structure includes a plurality of pixels arranged in a matrix, each of the pixels includes: a main pixel area and a sub-pixel area, the main pixel area The pixel area is arranged adjacent to the sub pixel area; a pixel electrode including a main pixel electrode provided in the main pixel area and a sub pixel electrode provided in the sub pixel area; and a data line and a sharing line, The data line and the sharing line are symmetrically arranged under the pixel electrode.
  • each of the pixels further includes: a gate line provided between the main pixel area and the sub-pixel area; a first transistor, the gate of the first transistor and the gate The source of the first transistor is electrically connected to the data line, and the drain of the first transistor is electrically connected to the main pixel electrode; a second transistor, the second transistor The gate of the second transistor is electrically connected to the gate line, the source of the second transistor is electrically connected to the data line, and the drain of the second transistor is electrically connected to the sub-pixel electrode; and a The third transistor, the gate of the third transistor is electrically connected to the gate line, the source of the third transistor is electrically connected to the sub-pixel electrode, and the drain of the third transistor is electrically connected to the The shared line is electrically connected.
  • each of the pixels further includes: a common electrode, which forms a first storage capacitor and a second storage capacitor with the main pixel electrode and the sub-pixel electrode, respectively.
  • the pixel structure adopts an 8-domain structure, and the main pixel area and the sub-pixel area each correspond to four domains of liquid crystal molecules.
  • the pixel structure is a PSVA pixel.
  • the materials of the main pixel electrode and the sub-pixel electrode both include indium tin oxide.
  • the gates of the first transistor, the second transistor, and the third transistor and the scan line are made of the same metal layer.
  • the source and drain of the first transistor, the second transistor and the third transistor and the data line are made of the same metal layer.
  • the present application provides a display panel including the above-mentioned pixel structure.
  • the data line is arranged on one side of the pixel electrode and the sharing line is arranged on the other side of the pixel electrode to form the data line and the sharing line symmetrically to realize the pixel structure opening. Partially symmetrical effect, thereby saving the number of data lines, while increasing the aperture ratio of the pixel structure to improve the display effect of the display panel.
  • FIG. 1 is a layout structure diagram of a pixel structure provided by an embodiment of the present application.
  • Fig. 2 is a schematic circuit diagram of the pixel structure provided by the present application.
  • FIG. 3 is a schematic structural diagram of a display panel provided by an embodiment of the present application.
  • an embodiment of the present application provides a pixel structure.
  • the pixel structure includes a plurality of pixels arranged in a matrix, and each pixel includes: a main pixel area 10, a main pixel electrode 110, a sub pixel area 20, and a sub pixel
  • each pixel includes a main pixel area 10 and a sub pixel area 20 that are adjacently arranged.
  • the pixel structure adopts an 8-domain structure.
  • the main pixel area 10 and the sub-pixel area 20 each correspond to four domains of liquid crystal molecules, which can realize a large viewing angle display while improving the color shift of the display panel.
  • This pixel structure can be a PSVA pixel.
  • the pixel electrodes are, for example, reference numerals 110 and 210 in FIG. 2.
  • the pixel electrode includes a main pixel electrode 110 and a sub pixel electrode 210.
  • the main pixel electrode 110 is disposed in the main pixel area 10
  • the sub pixel electrode is disposed in the sub pixel area 20.
  • the material of the main pixel electrode 110 and the sub-pixel electrode 210 may be indium tin oxide, but is not limited thereto.
  • the data line 30 is provided on one side of the pixel electrode, that is, the data line 30 is provided under the pixel electrode, so as to increase the aperture ratio of the pixel structure.
  • the data line 30 is also used to power the transistor.
  • the sharing line 40 is arranged on the other side of the pixel electrode, and the sharing line 40 is arranged below the pixel electrode, and is arranged symmetrically with the data line 30 on both sides of the pixel electrode, so as to realize the left and right openings of the pixel structure. Symmetrical effect.
  • the gate line 50 is provided between the main pixel area 10 and the sub-pixel area 20, and the gate line 50 is used to turn on and off the transistor.
  • the first transistor 60, the second transistor 70, and the third transistor 80 are all disposed between the main pixel area 10 and the sub pixel area 20.
  • the gate of the first transistor 60 is electrically connected to the gate line 50, the source of the first transistor 60 is electrically connected to the data line 30, and the drain of the first transistor 60 is electrically connected to the main pixel electrode 110. Sexual connection.
  • the gate of the second transistor 70 is electrically connected to the gate line 50, the source of the second transistor 70 is electrically connected to the data line 30, and the drain of the second transistor 70 is electrically connected to the sub-pixel electrode 210.
  • the gate of the third transistor 80 is electrically connected to the gate line 50, the source of the third transistor 80 is electrically connected to the sub-pixel electrode 210, and the drain of the third transistor 80 is electrically connected to the sharing line 40.
  • the gates of the first transistor 50, the second transistor 60 and the third transistor 70 and the scan line 50 are made of the same metal layer, which facilitates the realization of the gates of the first transistor 50, the second transistor 60 and the third transistor 70 and the scan line 50 Electrical connection.
  • the source and drain of the first transistor 50, the second transistor 60 and the third transistor 70 and the data line 30 are made of the same metal layer, which facilitates the source and drain of the first transistor 50, the second transistor 60 and the third transistor 70
  • the electrode is electrically connected to the data line 30.
  • the common electrode 90 is disposed under the pixel electrode.
  • the common electrode 90 forms a first storage capacitor and a second storage capacitor with the main pixel electrode 110 and the sub-pixel electrode 210 respectively, so that after the first and second storage capacitors are fully charged, their voltages are maintained until the next time the screen is updated. .
  • an embodiment of the present application also provides a display panel 2, including the pixel structure 1 described above.
  • the embodiment of the present application provides a pixel structure and a display panel.
  • the data line is arranged on one side of the pixel electrode and the sharing line is arranged on the other side of the pixel electrode to form the data line and the sharing line symmetrically to realize the pixel
  • the opening part of the structure has a symmetrical effect, thereby saving the number of data lines and increasing the aperture ratio of the pixel structure to improve the display effect of the display panel.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

L'invention concerne une structure de pixel et un écran d'affichage. Une ligne de données (30) est disposée sur un côté d'une électrode de pixel, et une ligne partagée (40) est disposée sur l'autre côté de l'électrode de pixel, de telle sorte que la ligne de données (30) et la ligne partagée (40) sont disposées symétriquement, et un effet symétrique des ouvertures gauche et droite de la structure de pixel est réalisé, ce qui permet de réduire le nombre de lignes de données (30). De plus, le rapport d'ouverture de la structure de pixel est augmenté, et l'effet d'affichage de l'écran d'affichage peut être amélioré.
PCT/CN2019/128971 2019-12-16 2019-12-27 Structure de pixel et écran d'affichage WO2021120283A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201911290318.7 2019-12-16
CN201911290318 2019-12-16

Publications (1)

Publication Number Publication Date
WO2021120283A1 true WO2021120283A1 (fr) 2021-06-24

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080303966A1 (en) * 2007-06-06 2008-12-11 Chunghwa Picture Tubes, Ltd. Pixel structure
CN101644863A (zh) * 2008-08-06 2010-02-10 北京京东方光电科技有限公司 Tft-lcd像素结构及其制造方法
CN105629609A (zh) * 2016-02-18 2016-06-01 深圳市华星光电技术有限公司 阵列基板、液晶显示装置及液晶显示装置的驱动方法
CN106647075A (zh) * 2016-12-23 2017-05-10 深圳市华星光电技术有限公司 一种像素结构及液晶显示装置
CN109061967A (zh) * 2018-07-17 2018-12-21 深圳市华星光电技术有限公司 像素驱动电路及液晶显示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080303966A1 (en) * 2007-06-06 2008-12-11 Chunghwa Picture Tubes, Ltd. Pixel structure
CN101644863A (zh) * 2008-08-06 2010-02-10 北京京东方光电科技有限公司 Tft-lcd像素结构及其制造方法
CN105629609A (zh) * 2016-02-18 2016-06-01 深圳市华星光电技术有限公司 阵列基板、液晶显示装置及液晶显示装置的驱动方法
CN106647075A (zh) * 2016-12-23 2017-05-10 深圳市华星光电技术有限公司 一种像素结构及液晶显示装置
CN109061967A (zh) * 2018-07-17 2018-12-21 深圳市华星光电技术有限公司 像素驱动电路及液晶显示装置

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