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CN-224203824-U - Driving backboard, display panel and display device

CN224203824UCN 224203824 UCN224203824 UCN 224203824UCN-224203824-U

Abstract

The present disclosure provides a driving back plate, a display panel and a display device. Specifically, the grid driving circuit is integrated on the driving backboard, the first via hole, the second via hole and the conducting structure are used for connecting the signal wires and the connecting wires which are positioned on different electrode layers, and meanwhile, the materials of the first via hole, the second via hole and the conducting structure comprise corrosion-resistant conductive materials, so that the corrosion resistance of the grid driving circuit can be improved on the premise of not increasing the production process flow, and the production stability is improved.

Inventors

  • HUA GANG
  • JIA TONGYU
  • LI SHAOBO
  • WANG DONG
  • CHEN JUNSHENG
  • DENG LIGUANG
  • WANG MIN
  • HU JINTANG
  • LI CHAO
  • LIU JINGHAO
  • YU XINRUI

Assignees

  • 北京京东方显示技术有限公司
  • 京东方科技集团股份有限公司

Dates

Publication Date
20260505
Application Date
20250429

Claims (12)

  1. 1. The reflective driving backboard is characterized by comprising a grid driving circuit area, wherein the grid driving circuit area comprises at least one signal line and at least one connecting line, the at least one signal line is arranged along a first direction, and the at least one connecting line is arranged along a second direction; The drive back plate further includes: A substrate; a first electrode layer disposed on the substrate; the second electrode layer is arranged on one side of the first electrode layer away from the substrate; the third electrode layer is arranged on one side, away from the substrate, of the second electrode layer; at least one first via hole is arranged between the first electrode layer and the third electrode layer, and at least one second via hole is arranged between the second electrode layer and the third electrode layer; The third electrode layer comprises at least one conducting structure, wherein the conducting structure is connected with the signal line positioned on the first electrode layer through the first via hole and connected with the connecting line positioned on the second electrode layer through the second via hole; The materials of the first via, the second via, and the third electrode layer include a corrosion resistant conductive material.
  2. 2. The driving back plate of claim 1, wherein each of the conductive structures is connected to one of the signal lines through two of the first vias and to one of the connection lines through two of the second vias.
  3. 3. The driving back panel of claim 1, further comprising a display region, wherein the third electrode layer in the display region comprises at least one pixel electrode.
  4. 4. The drive backplate of claim 1, wherein the corrosion-resistant conductive material is selected from at least one of MoNb, tiAlTi, MTD.
  5. 5. The drive backplate of claim 1, further comprising an active layer between the first electrode layer and the second electrode layer, the third electrode layer further comprising at least one light shield; at least part of the orthographic projection of the active layer on the substrate is positioned in the orthographic projection of the shading part on the substrate.
  6. 6. The drive backplate of claim 5, further comprising an insulating layer between the first electrode layer and the active layer.
  7. 7. The driving back plate of claim 1, wherein the gate driving circuit region further comprises at least one driving unit comprising at least one driving transistor, the driving transistor comprising a first electrode, a second electrode, and a third electrode; The connection line conductively connects one of the second electrode and the third electrode located in the second electrode layer.
  8. 8. The drive backplate of claim 1, further comprising a passivation layer between the second electrode layer and the third electrode layer.
  9. 9. A display panel comprising the driving back plate of any one of claims 1 to 8.
  10. 10. The display panel of claim 9, further comprising an electronic paper membrane disposed on the drive back plate.
  11. 11. The display panel of claim 10, further comprising a protective layer on a side of the electronic paper membrane away from the drive back plate.
  12. 12. A display device comprising the display panel of any one of claims 9 to 11.

Description

Driving backboard, display panel and display device Technical Field The disclosure relates to the field of display technologies, and in particular, to a driving backboard, a display panel and a display device. Background Electronic paper technology has been widely used in various fields by virtue of its characteristics of low power consumption, eye protection, flexibility, etc., and new application scenarios are continuously expanded. In the related art, the driving technology of the electronic paper panel is also kept in a stage of driving with a Gate signal driver (GATE INTEGRATED Circuit, gate IC) and a data signal driver (Source Integrated Circuit, source IC), and this display technology occupies too much frame and the driver cost is high. Disclosure of utility model In view of the above, the present disclosure is directed to a driving back plate, a display panel and a display device. In view of the above, the present disclosure provides a reflective driving back panel, comprising a gate driving circuit region, wherein the gate driving circuit region comprises at least one signal line and at least one connection line, the at least one signal line is arranged along a first direction, and the at least one connection line is arranged along a second direction; The drive back plate further includes: A substrate; a first electrode layer disposed on the substrate; the second electrode layer is arranged on one side of the first electrode layer away from the substrate; the third electrode layer is arranged on one side, away from the substrate, of the second electrode layer; at least one first via hole is arranged between the first electrode layer and the third electrode layer, and at least one second via hole is arranged between the second electrode layer and the third electrode layer; The third electrode layer comprises at least one conducting structure, wherein the conducting structure is connected with the signal line positioned on the first electrode layer through the first via hole and connected with the connecting line positioned on the second electrode layer through the second via hole; The materials of the first via, the second via, and the third electrode layer include a corrosion resistant conductive material. In some embodiments, each of the conductive structures is connected to one of the signal lines through two of the first vias and to one of the connection lines through two of the second vias. In some embodiments, the display area is further included, and the third electrode layer located in the display area includes at least one pixel electrode. In some embodiments, the corrosion resistant conductive material is selected from at least one of MoNb, tiAlTi, MTD. In some embodiments, the driving back plate further includes an active layer between the first electrode layer and the second electrode layer, and the third electrode layer further includes at least one light shielding portion; at least part of the orthographic projection of the active layer on the substrate is positioned in the orthographic projection of the shading part on the substrate. In some embodiments, the driving back plate further includes an insulating layer between the first electrode layer and the active layer. In some embodiments, the gate drive circuit region further comprises at least one drive unit comprising at least one drive transistor, the drive transistor comprising a first electrode, a second electrode, and a third electrode; The connection line conductively connects one of the second electrode and the third electrode located in the second electrode layer. In some embodiments, the driving back plate further includes a passivation layer between the second electrode layer and the third electrode layer. Based on the same inventive concept, the embodiments of the present disclosure further provide a display panel, including any one of the foregoing driving back plates. In some embodiments, the display panel further includes an electronic paper membrane disposed on the driving back plate. In some embodiments, the display panel further includes a protective layer, where the protective layer is located on a side of the electronic paper membrane away from the driving back plate. Based on the same inventive concept, the embodiments of the present disclosure further provide a display device including any one of the display panels described above. From the above, it can be seen that, according to the driving backboard, the display panel and the display device provided by the disclosure, the gate driving circuit is integrated on the driving backboard, the first via hole, the second via hole and the conducting structure are used for connecting the signal lines and the connecting lines which are positioned on different electrode layers, and meanwhile, the materials of the first via hole, the second via hole and the conducting structure comprise corrosion-resistant conductive materials, so that the corrosion resistance of the gate d