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CN-115472664-B - Display panel and display device

CN115472664BCN 115472664 BCN115472664 BCN 115472664BCN-115472664-B

Abstract

The invention discloses a display panel and a display device. The display panel comprises a first display area and a second display area, wherein the light transmittance of the first display area is larger than that of the second display area, a substrate, a first pixel driving circuit arranged on one side of the substrate and positioned in the second display area, a first sub-pixel arranged on one side of the first display area, far away from the substrate, of the first pixel driving circuit and electrically connected with the first pixel driving circuit through an electrode wire, a capacitance compensation unit arranged on one side, adjacent to the substrate, of the first sub-pixel, and at least part of the positive projection of the capacitance compensation unit on the substrate is covered by the positive projection of the first sub-pixel on the substrate. The technical scheme provided by the embodiment of the invention improves the display uniformity of the display panel.

Inventors

  • QIN XU
  • LOU JUNHUI
  • QI DONGYU
  • ZHANG SHAOHU

Assignees

  • 昆山国显光电有限公司
  • 昆山国显光电有限公司

Dates

Publication Date
20260421
Application Date
20221014
Priority Date
20221014

Claims (11)

  1. 1. The display panel is characterized by comprising a first display area and a second display area, wherein the light transmittance of the first display area is larger than that of the second display area; The substrate is provided with a plurality of grooves, The first pixel driving circuit is positioned in the second display area and is arranged on one side of the substrate; The first sub-pixel is positioned in the first display area, is arranged on one side of the first pixel driving circuit far away from the substrate, and is electrically connected with the first pixel driving circuit through an electrode wire; the capacitance compensation unit is positioned in the first display area and is arranged on one side of the first sub-pixel adjacent to the substrate; At least part of the orthographic projection of the capacitance compensation unit on the substrate is covered by the orthographic projection of the first sub-pixel on the substrate; the display panel further includes: The first wiring layer is arranged on one side of the first sub-pixel adjacent to the substrate; the second wiring layer is arranged on one side of the first wiring layer, which is far away from the substrate; the electrode trace includes: a first trace at least partially located in the first trace layer and a second trace at least partially located in the second trace layer, the second trace having a length less than a length of the first trace; the capacitance compensation unit is correspondingly arranged on the first sub-pixel connected with the second wiring.
  2. 2. The display panel of claim 1, wherein the first subpixel comprises a first electrode and a light emitting device, the first electrode disposed on a side of the light emitting device adjacent to the substrate, the first electrode being in wired connection with the electrode, the display panel further comprising: A plurality of power lines are provided, each of which has a plurality of power lines, The first metal layer is arranged on one side of the first wiring layer adjacent to the substrate; the second metal layer is arranged between the first metal layer and the first wiring layer; the capacitance compensation unit includes: the first compensation blocks are positioned on the first metal layer and connected with a power line; a plurality of second compensation blocks located on the second metal layer, the second compensation blocks being connected to the first electrodes; The orthographic projection of the first compensation block on the substrate at least partially overlaps the orthographic projection of the second compensation block on the substrate.
  3. 3. The display panel of claim 2, wherein the display panel comprises, The orthographic projection of the first electrode connected with the second wiring at least partially covers the orthographic projection of the first compensation block at the substrate, and at least partially covers the orthographic projection of the second compensation block at the substrate.
  4. 4. A display panel according to claim 3, wherein the front projection of the first sub-pixel connected to the second trace on the substrate completely covers the front projection of the first compensation block on the substrate and completely covers the front projection of the second compensation block on the substrate.
  5. 5. The display panel according to claim 2, the display panel is characterized by further comprising: The third metal layer is arranged between the first wiring layer and the second metal layer; the capacitance compensation unit further includes: the plurality of third compensation blocks are positioned on the third metal layer and are connected with the power line; the orthographic projection of the first electrode of at least part of the first sub-pixels connected with the second wiring on the substrate at least partially covers the orthographic projection of the third compensation block on the substrate.
  6. 6. The display panel of claim 3, wherein the capacitance compensation unit further comprises: The plurality of fourth compensation blocks are positioned on the first wiring layer and connected with the power line; The orthographic projection of the first electrode of the first sub-pixel on the substrate at least partially overlaps with the orthographic projection of the fourth compensation block on the substrate.
  7. 7. The display panel of claim 2, wherein the display panel comprises, The width of the second wire is larger than that of the first wire; The width of the second wire in the first display area is larger than that of the second wire in the second display area.
  8. 8. The display panel of claim 3, wherein the electrode trace further comprises: a third trace having a length between the length of the first trace and the length of the second trace; The first wiring is positioned on the first wiring layer; in the second display area, the second wire is at least partially positioned on the second wire layer, and in the first display area, the second wire is at least partially positioned on the first wire layer; in the second display area, the third wire is at least partially positioned on the second metal layer, and in the first display area, the third wire is at least partially positioned on the first wire layer; The electrode wire positioned on the first wire layer is connected with the first electrode of the first sub-pixel through a via hole.
  9. 9. The display panel according to claim 5, the display panel is characterized by further comprising: A first insulating layer disposed between the first metal layer and the second metal layer; the second insulating layer is arranged between the third metal layer and the first wiring layer; the third insulating layer is arranged between the first wiring layer and the second wiring layer; the thickness of the first insulating layer is smaller than the thickness of the second insulating layer and smaller than the thickness of the third insulating layer.
  10. 10. The display panel according to claim 9, wherein a dielectric constant of the first insulating layer is larger than a dielectric constant of the second insulating layer, and wherein a dielectric constant of the second insulating layer is the same as a dielectric constant of the third insulating layer.
  11. 11. A display device comprising the display panel according to any one of claims 1 to 10.

Description

Display panel and display device Technical Field The present invention relates to the field of display technologies, and in particular, to a display panel and a display device. Background With the development of display technology, the requirements of people on the display technology are also increasing. The structure of the pixel driving circuit of the display panel is more and more complex, so that display differences exist in different areas of the transparent display area, display unevenness of the transparent display area is caused, and the display effect of the display panel is affected. Disclosure of Invention The invention provides a display panel and a display device, which are used for solving the problem that uneven display of a transparent display area is caused by display difference of different areas of the transparent display area. According to an aspect of the present invention, there is provided a display panel including a first display region and a second display region, the first display region having a light transmittance greater than a light transmittance of the second display region; The substrate is provided with a plurality of grooves, The first pixel driving circuit is positioned in the second display area and is arranged on one side of the substrate; the first sub-pixel is positioned in the first display area, is arranged at one side of the first pixel driving circuit far away from the substrate, and is electrically connected with the first pixel driving circuit through an electrode wire; the capacitance compensation unit is positioned in the first display area and is arranged at one side of the first sub-pixel adjacent to the substrate; At least part of the orthographic projection of the capacitance compensation unit on the substrate is covered by the orthographic projection of the first sub-pixel on the substrate. Optionally, the display panel further includes: The first wiring layer is arranged on one side of the first sub-pixel adjacent to the substrate; The second wiring layer is arranged on one side of the first wiring layer, which is far away from the substrate; An electrode trace, comprising: A first trace at least partially located in the first trace layer and a second trace at least partially located in the second trace layer, the second trace having a length less than the length of the first trace; The first sub-pixel connected with the second wiring is correspondingly provided with a capacitance compensation unit. Optionally, the first sub-pixel includes a first electrode and a light emitting device, the first electrode is disposed on a side of the light emitting device adjacent to the substrate, the first electrode is connected with the electrode trace, and the display panel further includes: A plurality of power lines are provided, each of which has a plurality of power lines, The first metal layer is arranged on one side of the first wiring layer adjacent to the substrate; the second metal layer is arranged between the first metal layer and the first wiring layer; A capacitance compensation unit comprising: the first compensation blocks are positioned on the first metal layer and connected with the power line; the second compensation blocks are positioned on the second metal layer and connected with the first electrode; The orthographic projection of the first compensation block on the substrate at least partially overlaps the orthographic projection of the second compensation block on the substrate. Optionally, the orthographic projection of the first electrode connected with the second wiring at least partially covers the orthographic projection of the first compensation block at the substrate, and at least partially covers the orthographic projection of the second compensation block at the substrate; preferably, the front projection of the first sub-pixel connected with the second wiring on the substrate completely covers the front projection of the first compensation block on the substrate, and completely covers the front projection of the second compensation block on the substrate. Optionally, the display panel further includes: the third metal layer is arranged between the first wiring layer and the second metal layer; the capacitance compensation unit further includes: the plurality of third compensation blocks are positioned on the third metal layer and are connected with the power line; The orthographic projection of the first electrode of at least part of the first sub-pixels connected with the second wiring on the substrate at least partially covers the orthographic projection of the third compensation block on the substrate. Optionally, the capacitance compensation unit further includes: The plurality of fourth compensation blocks are positioned on the first wiring layer and connected with the power line; The front projection of the first electrode of the first sub-pixel on the substrate at least partially overlaps the front projection of the fourth compe