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CN-117518655-B - Display panel and terminal equipment

CN117518655BCN 117518655 BCN117518655 BCN 117518655BCN-117518655-B

Abstract

The embodiment of the application discloses a display panel and terminal equipment, wherein the display panel comprises a scanning line and pixel units, the pixel units comprise P (1) & P (n) and P (n+1), the scanning line comprises G (0) & G (n-1), G (n) and G (n+1), the pixel units P (n) are electrically connected with the scanning line G (n+1), at least one of the G (n-1) and the G (n) is overlapped with the pixel electrode of the pixel unit P (n), the distance between adjacent pixel electrodes is reduced by cross-row charging without arranging shielding electrodes between the adjacent pixel electrodes, the penetration rate of the pixel units is increased, and the different-surface overlapping arrangement of at least one of the G (n-1) and the pixel electrode of the pixel unit P (n) forms a compensation capacitor, so that the coupling voltage Vft (n+1) is reduced, the dark lines are reduced, and the display is promoted.

Inventors

  • YAN YUNCHENG
  • Liu Huangzheng
  • YONG WEINA
  • ZHONG FULAN
  • CAO WU
  • XU HONGYUAN

Assignees

  • 惠州华星光电显示有限公司
  • TCL华星光电技术有限公司

Dates

Publication Date
20260512
Application Date
20230905

Claims (8)

  1. 1. The display panel comprises scanning lines and pixel units, wherein one pixel unit is arranged between every two adjacent scanning lines and comprises pixel electrodes, and one scanning line is correspondingly connected with one pixel unit, and the display panel is characterized in that the pixel units comprise P (1) & P (n) and P (n+1), the scanning lines comprise G (0) & G (n-1), G (n) and G (n+1), the pixel units P (n) are electrically connected with the scanning lines G (n+1), at least one of the G (n-1) and the G (n) is in different-plane overlapping arrangement with the pixel electrodes of the pixel units P (n), and n is a positive integer greater than or equal to 2; the pixel unit further comprises a TFT device, the pixel unit P (n) comprises an nth TFT device and an nth pixel electrode, the pixel unit P (n+1) comprises an (n+1) th TFT device and an (n+1) th pixel electrode, wherein the nth pixel electrode is connected with the (n+1) th TFT device, and when the scanning line G (n+1) provides scanning signals for the pixel unit (n), a compensation capacitor Cco is formed between the G (n-1) and the pixel electrode of the pixel unit P (n).
  2. 2. The display panel according to claim 1, wherein the display panel is a liquid crystal display panel, the TFT device includes a gate electrode, a source electrode, and a drain electrode, a voltage of the gate electrode is changed to Vgh-Vgl, a capacitance of the drain electrode overlapping the gate electrode is Cgs, a liquid crystal capacitance is Clc, and a storage capacitance is Cst, wherein a coupling voltage Vft (n+1) = (Vgh-Vgl) ×cgs/(cst+cgs+clc+cco).
  3. 3. The display panel of claim 2, wherein the nth pixel electrode is connected to the source of the (n+1) th TFT device through a via.
  4. 4. The display panel of claim 2, wherein the G (n-1) generates a first coupling deviation Vft (n-1) for the G (n+1) when the G (n) is turned off, and wherein the G (n) generates a second coupling deviation Vft (n) for the G (n+1) when the G (n) is turned off, wherein the Vft (n) is less than the Vft (n-1).
  5. 5. A display panel as claimed in claim 4, characterized in that the voltage value after the scan line G (n+1) is turned on is V > the Vft (n+1) > the Vft (n-1) > the Vft (n).
  6. 6. The display panel of claim 2, wherein when the G (n-1) is turned off, the G (n+1) is turned on, the scan line is scanned for 5 microseconds, and an interval between adjacent scan lines is 2.5 microseconds.
  7. 7. The display panel of claim 1, wherein a pitch between adjacent ones of the pixel electrodes ranges from 4 micrometers to 5 micrometers.
  8. 8. A terminal device, characterized in that the terminal device comprises a display panel according to any of claims 1 to 7.

Description

Display panel and terminal equipment Technical Field The application relates to the technical field of display, in particular to a display panel and terminal equipment. Background Referring to fig. 1, the conventional display panel is that the pixel unit P (n) is electrically connected to the scan line G (n), and a shielding electrode is disposed between adjacent pixel electrodes of the conventional display panel, the shielding electrode is used for shielding the influence of signals between the scan line and the pixel electrodes, and a certain gap is formed between the shielding electrode and the pixel electrodes at two sides, so that the interval between the adjacent pixel electrodes is large, the transmittance of the pixel unit is low, and dark fringes exist in display. Therefore, the conventional display panel has the technical problems of dark lines and low transmittance. Disclosure of Invention The embodiment of the application provides a display panel and terminal equipment, which can be used for solving the technical problems of dark lines and low transmittance of the existing display panel. The embodiment of the application provides a display panel, which comprises a scanning line and pixel units, wherein one pixel unit is arranged between adjacent scanning lines, the pixel unit comprises pixel electrodes, one scanning line is correspondingly connected with one pixel unit, the pixel unit comprises P (1) & P (n) and P (n+1), the scanning line comprises G (0) & G (n-1), G (n) and G (n+1), the pixel unit P (n) is electrically connected with the scanning line G (n+1), at least one of the G (n-1), the G (n-1) and the G (n) is overlapped with the pixel electrode of the pixel unit P (n), and n is a positive integer greater than or equal to 2. Optionally, in some embodiments of the present application, the pixel unit further includes a TFT device, the pixel unit P (n) includes an nth TFT device and an nth pixel electrode, and the pixel unit P (n+1) includes an (n+1) th TFT device and an (n+1) th pixel electrode, where the nth pixel electrode is connected to the (n+1) th TFT device. Optionally, in some embodiments of the present application, when the scan line G (n+1) provides a scan signal to the pixel unit (n), a compensation capacitor Cco is formed between the G (n-1), the G (n) and the pixel electrode of the pixel unit P (n). Optionally, in some embodiments of the present application, the display panel is a liquid crystal display panel, the TFT device includes a gate, a source, and a drain, a voltage of the gate changes to Vgh-Vgl, a capacitance of the drain overlapping the gate is Cgs, a liquid crystal capacitance is Clc, and a storage capacitance is Cst, where the coupling voltage Vft (n+1) = (Vgh-Vgl) ×cgs/(cst+cgs+clc+cco). Optionally, in some embodiments of the present application, the nth pixel electrode is connected to a source of the (n+1) th TFT device through a via. Alternatively, in some embodiments of the present application, the G (n-1) generates a first coupling bias Vft (n-1) for the G (n+1) when the G (n) is off, and generates a second coupling bias Vft (n) for the G (n+1) when the G (n) is off, wherein the Vft (n) is less than the Vft (n-1). Optionally, in some embodiments of the present application, the voltage value of the scan line G (n+1) after being turned on is V, where V > Vft (n+1) > Vft (n-1) > Vft (n). Alternatively, in some embodiments of the present application, when the G (n-1) is turned off, the G (n+1) is turned on, the scan line is scanned for 5 microseconds, and the interval between adjacent scan lines is 2.5 microseconds. Alternatively, in some embodiments of the present application, the pitch between adjacent pixel electrodes ranges from 4 micrometers to 5 micrometers. An embodiment of the present application provides a terminal device, where the terminal device includes the display panel described in any one of the above embodiments. The pixel unit P (n) is electrically connected with the scanning line G (n+1) to realize cross-row charging, so that shielding electrodes are not required to be arranged between adjacent pixel electrodes, the distance between the adjacent pixel electrodes is reduced, the penetration rate of the pixel unit is increased, meanwhile, G (n-1), G (n) and the pixel electrode of the pixel unit P (n) are arranged in different-plane overlapping mode, and when the scanning line G (n+1) scans and drives the pixel unit P (n), compensation capacitors are formed between at least one of G (n-1) and the pixel electrode of the pixel unit P (n), so that coupling voltage is reduced, dark lines are reduced, display taste is improved, and the technical problems of dark lines and low penetration rate of the existing display panel are solved. Drawings In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it bei