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CN-119781636-B - Display panel and electronic device

CN119781636BCN 119781636 BCN119781636 BCN 119781636BCN-119781636-B

Abstract

The application provides a display panel and electronic equipment, wherein the display panel comprises at least one first display substrate, the first display substrate comprises a driving device layer, a first insulating layer, a first touch layer, a light-emitting device binding layer and a light-emitting device which are arranged in a stacked mode, the first touch layer is provided with a first touch electrode, the first touch electrode is electrically connected with the first touch driving device through a first through hole penetrating through the first insulating layer, and therefore the touch electrode of the touch layer is directly and electrically connected with the first touch driving device through punching holes in the first display substrate, so that a touch frame does not exist on the touch layer, and the problem that the touch frame exists when the existing large-screen display adopts an externally hung capacitive touch scheme is solved.

Inventors

  • XU LIANGYING
  • ZHENG FENG

Assignees

  • TCL华星光电技术有限公司

Dates

Publication Date
20260512
Application Date
20231007

Claims (9)

  1. 1. A display panel, characterized in that it comprises at least one first display substrate (1), said first display substrate (1) comprising: A first insulating layer (11); the driving device layer (20) is arranged on one side of the first insulating layer (11), and the driving device layer (20) comprises a first touch control driving device (21) and a first light emitting driving device (22); The first touch control layer (30) is arranged on one side, far away from the driving device layer (20), of the first insulating layer (11), the first touch control layer (30) is provided with a first touch control electrode (31), and the first touch control electrode (31) is electrically connected with the first touch control driving device (21); A light emitting device binding layer (40) arranged on one side of the first touch control layer (30) far away from the driving device layer (20), wherein the light emitting device binding layer (40) is provided with a binding electrode (41), the binding electrode (41) is electrically connected with the first light emitting driving device (22), and The light-emitting device (50) is arranged on one side of the light-emitting device binding layer (40) away from the first touch layer (30) and is bonded with the binding electrode (41); The first display substrate (1) further comprises a plurality of first through holes (111), each first through hole (111) penetrates through the first insulating layer (11), the first touch electrode (31) comprises an electrode part (311) and a connecting part (312), the electrode part (311) is located at one side, far away from the driving device layer (20), of the first insulating layer (11), the connecting part (312) is located in the first through hole (111), and the electrode part (311) is electrically connected with the first touch driving device (21) through the connecting part (312); The first display substrate (1) further comprises a signal wire layer (60) arranged on one side of the first insulating layer (11) close to the first touch layer (30), the signal wire layer (60) comprises a signal wire (61), the signal wire (61) is electrically connected between the first light-emitting driving device (22) and the binding electrode (41), a third insulating layer (13) is arranged between the signal wire layer (60) and the first touch layer (30), a fourth insulating layer (14) is arranged between the first touch layer (30) and the binding layer (40), the first display substrate (1) further comprises a plurality of second through holes (112) and third through holes (113), the second through holes (112) penetrate through the fourth insulating layer (14), the first touch layer (30) and the third insulating layer (13), the third through holes (113) penetrate through the first insulating layer (30) and the first light-emitting driving device (31) and are electrically connected with the first light-emitting device (41) through the first through holes (112), when the first touch layer (30) further comprises a bridging electrode (32), the bridging electrode (32) avoids the second via hole (112).
  2. 2. The display panel according to claim 1, wherein the first touch electrode (31) comprises a first driving electrode (31T) and a first sensing electrode (31R), the first driving electrode (31T) and the first sensing electrode (31R) are arranged in the same layer, the first touch layer (30) further comprises a bridging electrode (32), the first driving electrode (31T) or the first sensing electrode (31R) is bridged by the bridging electrode (32), and the bridging electrode (32) is located at a side of the first driving electrode (31T) and the first sensing electrode (31R) away from the driving device layer (20).
  3. 3. The display panel according to claim 1, wherein the first touch electrode (31) includes a first driving electrode (31T) and a first sensing electrode (31R), the first driving electrode (31T) includes a driving electrode portion (311T) and a driving connection portion (312T), and the first sensing electrode (31R) includes a sensing electrode portion (311R) and a sensing connection portion (312R); The first display substrate (1) further comprises a second insulating layer (12), the second insulating layer (12) is positioned on one side of the first insulating layer (11) away from the driving device layer (20), the driving electrode part (311T) is positioned on one side of the second insulating layer (12) away from the first insulating layer (11), and the sensing electrode part (311R) is positioned on one side of the second insulating layer (12) close to the first insulating layer (11); The first via hole (111) comprises a first sub-hole (1111) and a second sub-hole (1112), the first sub-hole (1111) penetrates through the second insulating layer (12) and the first insulating layer (11), the second sub-hole (1112) penetrates through the first insulating layer (11), the driving connection part (312T) is located in the first sub-hole (1111), the driving electrode part (311T) is electrically connected with the first touch driving device (21) through the driving connection part (312T), the sensing connection part (312R) is located in the second sub-hole (1112), and the sensing electrode part (311R) is electrically connected with the first touch driving device (21) through the sensing connection part (312R).
  4. 4. A display panel according to claim 3, wherein the line width of the first driving electrode (31T) and the first sensing electrode (31R) ranges from 30 micrometers to 100 micrometers, the line spacing between adjacent first driving electrodes (31T) is greater than or equal to 50 micrometers, and the line spacing between adjacent first sensing electrodes (31R) is greater than or equal to 50 micrometers.
  5. 5. The display panel according to claim 1, wherein the first display substrate (1) further comprises: A first shielding layer (91) provided on a side of the third insulating layer (13) away from the signal line layer (60); a fifth insulating layer (15) disposed between the first shielding layer (91) and the first touch layer (30); a second shielding layer (92) disposed on a side of the fourth insulating layer (14) away from the first touch layer (30); A sixth insulating layer (16) disposed between the second shielding layer (92) and the light emitting device bonding layer (40); Wherein the first shielding layer (91) and the second shielding layer (92) are both at constant potential.
  6. 6. The display panel according to claim 5, wherein the first shielding layer (91), the second shielding layer (92), the signal line layer (60) and the first touch electrode (31) are made of the same material.
  7. 7. A display panel according to any one of claims 1 to 6, characterized in that the display panel further comprises a plurality of second display substrates (2), a plurality of the second display substrates (2) being tiled to each other, the first display substrate (1) being located at the tiling of two adjacent second display substrates (2).
  8. 8. The display panel according to claim 7, wherein the second display substrate (2) comprises a light emitting substrate (70) and a second touch layer (80) located at a light emitting side of the light emitting substrate (70), the second touch layer (80) is provided with a second touch electrode (81) and touch traces (82) located at a side of the second touch electrode (81) away from the first display substrate (1), and each touch trace (82) is electrically connected with one second touch electrode (81).
  9. 9. An electronic device comprising the display panel according to any one of claims 1 to 8.

Description

Display panel and electronic device Technical Field The present application relates to the field of display technologies, and in particular, to a display panel and an electronic device. Background With the development of display technology, large-screen display is widely applied, for example, the large-screen display can be applied to scenes such as shops, conference rooms, classrooms and the like. At present, most of touch schemes of large-screen display in the market are infrared touch, the cost of the infrared touch is low, the installation is simple, but due to the characteristics of an infrared transmitting tube and a receiving tube of the infrared touch, the surface of a frame of the large-screen display adopting the infrared touch protrudes by 13.6mm, so that the appearance of the large-screen display is poor, and full-plane display cannot be achieved. However, in order to match education high-end markets and realize full-plane display, a scheme of adopting external capacitive touch is presented in the related art, however, a touch frame (Border) exists in the external capacitive touch scheme, which is not beneficial to realizing full-plane display. Disclosure of Invention The application provides a display panel and electronic equipment, which are used for solving the technical problem that a touch frame exists when the existing large-screen display adopts an externally hung capacitive touch scheme. In order to solve the problems, the technical scheme provided by the application is as follows: An embodiment of the present application provides a display panel, which includes at least one first display substrate, where the first display substrate includes: A first insulating layer; the driving device layer is arranged on one side of the first insulating layer and comprises a first touch control driving device and a first light emitting driving device; The first touch control layer is arranged on one side, far away from the driving device layer, of the first insulating layer, and is provided with a first touch control electrode which is electrically connected with the first touch control driving device; The light-emitting device binding layer is arranged on one side, far away from the driving device layer, of the first touch control layer and is provided with a binding electrode which is electrically connected with the first light-emitting driving device, and The light-emitting device is arranged on one side of the light-emitting device binding layer far away from the first touch layer and is bonded with the binding electrode; The first display substrate further comprises a plurality of first through holes, each first through hole penetrates through the first insulating layer, the first touch electrode comprises an electrode portion and a connecting portion, the electrode portion is located at one side, far away from the driving device layer, of the first insulating layer, the connecting portion is located in each first through hole, and the electrode portion is electrically connected with the first touch driving device through the connecting portion. In the display panel provided by the embodiment of the application, the first touch electrode comprises a first driving electrode and a first sensing electrode, the first driving electrode and the first sensing electrode are arranged on the same layer, the first touch layer further comprises a bridging electrode, the first driving electrode or the first sensing electrode is bridged by the bridging electrode, and the bridging electrode is positioned on one side of the first driving electrode and one side of the first sensing electrode, which is far away from the driving device layer. In the display panel provided by the embodiment of the application, the first touch electrode comprises a first driving electrode and a first sensing electrode, the first driving electrode comprises a driving electrode part and a driving connecting part, and the first sensing electrode comprises a sensing electrode part and a sensing connecting part; The first display substrate further comprises a second insulating layer, the second insulating layer is positioned on one side, far away from the driving device layer, of the first insulating layer, the driving electrode part is positioned on one side, far away from the first insulating layer, of the second insulating layer, and the induction electrode part is positioned on one side, close to the first insulating layer, of the second insulating layer; The first via hole comprises a first sub-hole and a second sub-hole, the first sub-hole penetrates through the second insulating layer and the first insulating layer, the second sub-hole penetrates through the first insulating layer, the driving connecting portion is located in the first sub-hole, the driving electrode portion is electrically connected with the first touch driving device through the driving connecting portion, the sensing connecting portion is located in the second s