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CN-118887903-B - Display panel and display device

CN118887903BCN 118887903 BCN118887903 BCN 118887903BCN-118887903-B

Abstract

The embodiment of the invention provides a display panel and a display device. The display panel comprises a substrate, a driving layer and an electrode layer, wherein the driving layer is positioned on one side of the substrate, the driving layer comprises a shift register, the shift register comprises a plurality of shift register units in cascade connection, the electrode layer comprises a plurality of electrode groups, each electrode group comprises a first electrode and a second electrode, and the shift register units at least partially overlap with at least one electrode group along the direction perpendicular to the plane of the substrate. The embodiment of the invention can realize the display effect of no frame and high transmission of the edge when applied to transparent display.

Inventors

  • XIE MENGMENG
  • WU TIANYI
  • JIANG WENXIN

Assignees

  • 天马新型显示技术研究院(厦门)有限公司

Dates

Publication Date
20260505
Application Date
20240816

Claims (20)

  1. 1. A display panel is characterized by comprising a substrate, a driving layer and an electrode layer, wherein the driving layer is positioned on one side of the substrate, the driving layer comprises a shift register, the shift register comprises a plurality of shift register units in cascade connection, the electrode layer comprises a plurality of electrode groups, the electrode groups comprise a first electrode and a second electrode, The shift register unit at least partially overlaps at least one electrode group along a direction perpendicular to a plane of the substrate; The display panel satisfies at least one of: The driving layer further comprises an electrostatic discharge circuit which is overlapped with at least one electrode group along the direction perpendicular to the plane of the substrate; Or alternatively The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units which are cascaded, the first shift register units are arranged along a first direction, the length of the first shift register units in the first direction is larger than that of the first shift register units in a second direction, the first direction is intersected with the second direction, the driving layer comprises a first group of driving signal lines, the first shift register is connected with the first group of driving signal lines, the first group of driving signal lines comprises a first starting signal line, the driving layer further comprises a first static electricity discharging circuit, the first static electricity discharging circuit is connected with the first starting signal line, the length of the first static electricity discharging circuit in the first direction is smaller than that of the first shift register units in the first direction, and/or the length of the first static electricity discharging circuit in the second direction is larger than that of the first shift register units in the second direction; Or alternatively The shift register comprises a second shift register, the second shift register comprises a plurality of cascaded second shift register units, the second shift register units are arranged along a first direction, the length of the second shift register units in the first direction is smaller than that of the second shift register units in a second direction, the first direction is intersected with the second direction, the driving layer comprises a second group of driving signal lines, the second shift register is connected with the second group of driving signal lines, the second group of driving signal lines comprises a second initial signal line, the driving layer further comprises a second static electricity discharging circuit, the second static electricity discharging circuit is connected with the second initial signal line, and the second static electricity discharging circuit is overlapped with the second shift register units along the first direction.
  2. 2. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection, and the first shift register units are arranged along a first direction, the length of the first shift register units in the first direction is larger than that of the first shift register units in a second direction, and the first direction and the second direction are crossed; The first shift register unit comprises a first output module, the channel width direction of the transistor in the first output module is parallel to the first direction, and the channel length direction of the transistor in the first output module is parallel to the second direction.
  3. 3. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection, and the first shift register units are arranged along a first direction, the length of the first shift register units in the first direction is larger than that of the first shift register units in a second direction, and the first direction and the second direction are crossed; the first shift register unit comprises a first switch module and a first output module, and the first output module comprises a first output transistor and a second output transistor; the first switch module is located between the first output transistor and the second output transistor along the first direction.
  4. 4. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection, and the first shift register units are arranged along a first direction, the length of the first shift register units in the first direction is larger than that of the first shift register units in a second direction, and the first direction and the second direction are crossed; The display panel further comprises a plurality of sub-pixels positioned on one side of the substrate, the sub-pixels comprising the electrode group, the plurality of sub-pixels being arranged in a pixel row in the second direction; The driving layer comprises a plurality of first scanning lines, and the first scanning lines are connected with a plurality of sub-pixels in one pixel row; the output end of the first shift register unit is connected with two first scanning lines.
  5. 5. The display panel of claim 4, wherein the display panel comprises, A plurality of the pixel rows are arranged along the first direction; the first shift register comprises N first shift register units, the nth stage of the first shift register units are respectively connected with the nth pixel row and the 2N-1 th pixel row through two first scanning lines, N and N are positive integers, and N is less than or equal to N/2.
  6. 6. The display panel of claim 5, wherein the display panel comprises, The first shift register unit of the nth stage overlaps at least one of the electrode groups in the pixel row of the 2 nth stage in a direction perpendicular to a plane in which the substrate is located.
  7. 7. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection, and the first shift register units are arranged along a first direction, the length of the first shift register units in the first direction is larger than that of the first shift register units in a second direction, and the first direction and the second direction are crossed; The length of the first shift register unit in the second direction is smaller than the lengths of three electrode groups arranged in succession in the second direction.
  8. 8. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection, and the first shift register units are arranged along a first direction, the length of the first shift register units in the first direction is larger than that of the first shift register units in a second direction, and the first direction and the second direction are crossed; The length of the first shift register unit in the first direction is L1, L1 is smaller than L2 plus L3, L2 is the length of the electrode group in the first direction, and L3 is the interval distance between two adjacent electrode groups in the first direction.
  9. 9. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection, and the first shift register units are arranged along a first direction, the length of the first shift register units in the first direction is larger than that of the first shift register units in a second direction, and the first direction and the second direction are crossed; the driving layer comprises a first group of driving signal lines, the first shift register is connected with the first group of driving signal lines, and the first group of driving signal lines comprise a first power line and a second power line; in the second direction, the first power line and the second power line are respectively located at two sides of the first shift register.
  10. 10. The display panel of claim 9, wherein the display panel comprises, At least one line of the first set of drive signal lines at least partially overlaps the electrode set in a direction perpendicular to a plane in which the substrate lies.
  11. 11. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection, and the first shift register units are arranged along a first direction, the length of the first shift register units in the first direction is larger than that of the first shift register units in a second direction, and the first direction and the second direction are crossed; The first electrodes are connected with each other to form a common electrode, and the second electrode is positioned at one side of the common electrode in the first direction in the plurality of electrode groups arranged along the second direction; and the edge of the first shift register unit is flush with the edge of one side of the common electrode, which is far away from the second electrode.
  12. 12. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection, and the first shift register units are arranged along a first direction, the length of the first shift register units in the first direction is larger than that of the first shift register units in a second direction, and the first direction and the second direction are crossed; The distance between two adjacent first shift register units is larger than the distance between two adjacent electrode groups along the first direction.
  13. 13. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection, and the first shift register units are arranged along a first direction; The driving layer further comprises a first static electricity discharge circuit, and the first static electricity discharge circuit is connected with the first starting signal line; the first electrostatic discharge circuit overlaps the first shift register unit in the first direction.
  14. 14. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a second shift register, wherein the second shift register comprises a plurality of cascaded second shift register units, and the second shift register units are arranged along a first direction, the length of the second shift register units in the first direction is smaller than that of the second shift register units in a second direction, and the first direction is intersected with the second direction; The second shift register unit comprises a second output module, the channel length direction of the transistor in the second output module is parallel to the first direction, and the channel width direction of the transistor in the second output module is parallel to the second direction.
  15. 15. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a second shift register, wherein the second shift register comprises a plurality of cascaded second shift register units, and the second shift register units are arranged along a first direction, the length of the second shift register units in the first direction is smaller than that of the second shift register units in a second direction, and the first direction is intersected with the second direction; The second shift register unit comprises a second switch module and a second output module, and the second switch module and the second output module are arranged along the second direction.
  16. 16. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a second shift register, wherein the second shift register comprises a plurality of cascaded second shift register units, and the second shift register units are arranged along a first direction, the length of the second shift register units in the first direction is smaller than that of the second shift register units in a second direction, and the first direction is intersected with the second direction; the display panel comprises a second group of driving signal lines, wherein the second shift register is connected with the second group of driving signal lines, and the second group of driving signal lines comprises a third power line and a fourth power line; in the second direction, the third power line and the fourth power line are respectively located at two sides of the second shift register.
  17. 17. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a second shift register, wherein the second shift register comprises a plurality of cascaded second shift register units, and the second shift register units are arranged along a first direction, the length of the second shift register units in the first direction is smaller than that of the second shift register units in a second direction, and the first direction is intersected with the second direction; The first electrodes are connected with each other to form a common electrode, and the second electrode is positioned at one side of the common electrode in the first direction in the plurality of electrode groups arranged along the second direction; And the edge of the second shift register unit is flush with the edge of one side of the common electrode, which is far away from the second electrode.
  18. 18. The display panel of claim 1, wherein the display panel comprises, The shift register comprises a second shift register, wherein the second shift register comprises a plurality of cascaded second shift register units, and the second shift register units are arranged along a first direction, the length of the second shift register units in the first direction is smaller than that of the second shift register units in a second direction, and the first direction is intersected with the second direction; the shift register comprises a first shift register, wherein the first shift register comprises a plurality of first shift register units in cascade connection; The length of the first shift register unit in the first direction is greater than the length thereof in the second direction.
  19. 19. The display panel of claim 18, wherein the display panel comprises, The length of the first shift register unit in the second direction is smaller than the length of the second shift register unit in the second direction, and/or the length of the first shift register unit in the first direction is larger than the length of the second shift register unit in the first direction.
  20. 20. The display panel of claim 18, wherein the display panel comprises, The first shift register comprises N first shift register units, and the second shift register comprises 2 N second shift register units, wherein N is a positive integer; Along the second direction, the first shift register unit of the mth stage overlaps with the second shift register unit of the 2m-1 stage, m is a positive integer, and m is less than or equal to N.

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 The LED (light-emitting diode) can efficiently convert electric energy into light energy, and has the characteristics of small volume, long service life, high efficiency, energy conservation, rich colors and the like. With the continuous progress of technology, LEDs have been widely used in the fields of photographs, flat panel displays, medical devices, and the like. In the display field, the LEDs can be used as sub-pixels of transparent display or large-screen spliced display. How to realize borderless display and ensure that the edge area has certain transmittance in application is one of the key problems in current research. Disclosure of Invention The embodiment of the invention provides a display panel and a display device, which are used for solving the technical problems of realizing borderless display and having transmittance in an edge area. In a first aspect, an embodiment of the present invention provides a display panel, where the display panel includes a substrate, a driving layer located on one side of the substrate, and an electrode layer, where the driving layer includes a shift register including a plurality of shift register units in cascade connection, the electrode layer includes a plurality of electrode groups including a first electrode and a second electrode, The shift register unit is at least partially overlapped with at least one electrode group along a direction perpendicular to a plane of the substrate. In a second aspect, based on the same inventive concept, an embodiment of the present invention provides a display device including the display panel provided in any embodiment of the present invention. The display panel and the display device provided by the embodiment of the invention have the beneficial effects that the shift register unit is arranged in the display panel and at least partially overlapped with at least one electrode group, so that at least part of the shift register unit is positioned in the display area, and therefore, the frame can be reduced to realize the frameless display. And a certain area of transmission area can be reserved between the electrode groups adjacent in the column direction, so that the edge position of the display panel has certain transmittance. The display panel provided by the embodiment of the invention can realize the display effect of no frame and high transmission of the edge when being applied to transparent display. Drawings In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art. Fig. 1 is a schematic diagram of a display panel according to an embodiment of the present invention; FIG. 2 is a schematic diagram of another display panel according to an embodiment of the present invention; FIG. 3 is a schematic diagram of a portion of another display panel according to an embodiment of the invention; FIG. 4 is a schematic cross-sectional view taken at the location of line A-A' in FIG. 3; FIG. 5 is a schematic diagram of a first shift register unit according to an embodiment of the present invention; FIG. 6 is a schematic diagram of a portion of another display panel according to an embodiment of the invention; FIG. 7 is a schematic diagram of another display panel according to an embodiment of the present invention; FIG. 8 is a schematic diagram of a portion of another display panel according to an embodiment of the invention; FIG. 9 is a schematic diagram of a second shift register unit according to an embodiment of the present invention; FIG. 10 is a schematic diagram of a second shift register unit according to an embodiment of the present invention; FIG. 11 is a schematic diagram of a pixel circuit according to an embodiment of the present invention; FIG. 12 is a schematic view of a portion of another display panel according to an embodiment of the present invention; FIG. 13 is a schematic view of a portion of another display panel according to an embodiment of the invention; FIG. 14 is a schematic view of a portion of another display panel according to an embodiment of the invention; FIG. 15 is a schematic view of another display panel according to an embodiment of the present invention; FIG. 16 is a circuit diagram of the electrostatic discharge circuit illustrated in FIG. 15; FIG. 17 is a schematic diagram of another display panel according to an embodiment of the present invention; FIG. 18 is a schematic diagram of another display panel according to an embo