CN-119811212-B - Display module and display device

CN119811212BCN 119811212 BCN119811212 BCN 119811212BCN-119811212-B

Abstract

The disclosure relates to a display module and a display device. The display module comprises a display panel, a carbon fiber layer, an electrostatic discharge layer and a conductive layer, wherein the display panel is provided with a bending region, a first non-bending region and a second non-bending region which are distributed along a first direction, the bending region is positioned between the first non-bending region and the second non-bending region, the carbon fiber layer is arranged on the back surface of the display panel, the electrostatic discharge layer comprises a plurality of electrostatic discharge parts which are arranged along the first direction, the electrostatic discharge parts are arranged at intervals and are connected with fixed potential signals, at least one electrostatic discharge part is positioned in the first non-bending region, at least one electrostatic discharge part is positioned in the second non-bending region, the conductive layer is at least partially positioned in the bending region and is electrically connected with the electrostatic discharge layer, and the conductive layer is arranged between the electrostatic discharge layer and the carbon fiber layer or between two adjacent electrostatic discharge parts. The bending area which cannot be covered by the static discharge layer is prevented from being influenced by an electric field, and the problem that bright/dark ripples appear in the bending area is avoided.

Inventors

YUAN BO
ZHANG XIJIANG
LI JIAOYANG
LI MINGSHENG

Assignees

昆山国显光电有限公司
合肥维信诺科技有限公司
广州国显科技有限公司

Dates

Publication Date: 20260508
Application Date: 20250206

Claims (8)

1. A display module, characterized in that the display module comprises: A display panel having a inflection region, a first non-inflection region, and a second non-inflection region distributed along a first direction, the inflection region being located between the first non-inflection region and the second non-inflection region; the carbon fiber layer is arranged on the back surface of the display panel; The static discharge layer comprises a plurality of static discharge parts arranged along the first direction, the static discharge parts are arranged at intervals and connected with a fixed potential signal, at least one static discharge part is positioned in the first non-bending area, and at least one static discharge part is positioned in the second non-bending area; The conductive layer is at least partially located in the bending area and is electrically connected with the static electricity discharge layer, the conductive layer is arranged between the static electricity discharge layer and the carbon fiber layer, the orthographic projection formed on the display panel by the conductive layer is at least partially located in the bending area, and the edge of at least one side of the orthographic projection formed on the display panel by the conductive layer extends out of the edge preset length of the orthographic projection formed on the display panel by the carbon fiber layer.
2. The display module of claim 1, wherein at least a portion of at least one of the static discharge portions is located in the bending region.
3. A display module according to claim 1 or 2, wherein the material of the conductive layer comprises a stainless steel alloy or a titanium alloy.
4. A display module according to claim 1 or 2, wherein the thickness of the conductive layer is 20 μm to 30 μm.
5. A display module according to claim 1 or 2, wherein the bending region is covered by an orthographic projection of the conductive layer formed on the display panel.
6. The display module of claim 1, wherein the predetermined length is 0.05mm to 0.15mm.
7. The display module of claim 1, wherein the display module further comprises: and the conductive silver paste layer is arranged at the edge of the conductive layer.
8. A display device comprising a display module according to any one of claims 1-7.

Description

Display module and display device Technical Field The disclosure relates to the field of display technologies, and in particular, to a display module and a display device. Background Along with innovation and development of folding technology, the demand of folding mobile phones on the aspects of thinning and weight reduction is stronger, and new materials applied to folding modules are more and more. The carbon fiber is used as a low-density material for the folding module and is used as a back support material of the folding module to reduce the weight of the folding module. However, light/dark ripples (mura) are formed in the bending area, which affect the display effect of the folding module. Disclosure of Invention In view of the above, it is necessary to provide a display panel and a display device capable of improving display uniformity. In a first aspect, the present disclosure provides a display panel, the display module including: A display panel having a inflection region, a first non-inflection region, and a second non-inflection region distributed along a first direction, the inflection region being located between the first non-inflection region and the second non-inflection region; the carbon fiber layer is arranged on the back surface of the display panel; The static discharge layer comprises a plurality of static discharge parts arranged along the first direction, the static discharge parts are arranged at intervals and connected with a fixed potential signal, at least one static discharge part is positioned in the first non-bending area, and at least one static discharge part is positioned in the second non-bending area; The conductive layer is at least partially positioned in the bending area and is electrically connected with the static electricity discharge layer, and the conductive layer is arranged between the static electricity discharge layer and the carbon fiber layer or between two adjacent static electricity discharge parts. Above-mentioned display module assembly sets up the conducting layer through one side that keeps away from display panel at the carbon fiber layer, screens electric field or derive static through the conducting layer to avoid the unable bending area that covers of static release layer to receive the electric field influence, avoid bending area to appear bright/dark ripple's problem. In one embodiment, at least a portion of at least one of the static discharge portions is located in the inflection region. In one embodiment, the conductive layer is disposed between two adjacent electrostatic discharge portions, and the conductive layer is detachably connected to the carbon fiber layer, so that the conductive layer is removed before the display module is assembled; preferably, the conductive layer is copper foil. On the one hand, the conductive layer and the static electricity release layer are connected to form an electric field shielding layer of the whole layer, the conductive layer can shield the electric field of the bending area to prevent the bending area from being influenced by an external electric field, and on the other hand, the conductive layer is connected with the carbon fiber layer in a separable way, so that the conductive layer can be removed before the display module is assembled, and the bending effect of the display module can be prevented from being influenced by poor bending performance of the conductive layer. In one embodiment, the conductive layer is disposed between two adjacent electrostatic discharge portions, and the thickness of the conductive layer is the same as or smaller than the thickness of the electrostatic discharge portions; the material of the conductive layer comprises stainless steel alloy or titanium alloy. Like this, on the one hand, conducting layer and electrostatic discharge layer connect into the electric field shielding layer of whole layer, and the conducting layer can consume static, avoids buckling the district and receives the electric field influence, and on the other hand, the conducting layer has good flexibility, and the conducting layer can buckle together with display panel's buckling district, need not to get rid of the conducting layer, and display module assembly's preparation is simpler. In one embodiment, the thickness of the conductive layer is 20 μm to 30 μm. Therefore, the conductive layer is thin in thickness and good in bending performance, and displacement of the conductive layer during bending of the bending area can be avoided. In one embodiment, the thickness of the conductive layer is 30-150 μm, and a plurality of first holes which are arranged at intervals are formed in the conductive layer; preferably, the shape of the first hole is diamond, circular, oval or rectangular; Preferably, the aperture of the first hole is 2 mm-10 mm; preferably, the distance between the first holes is 0.3 mm-1 mm. Like this, set up first hole at the conducting layer and can increase the conducting layer bend