CN-113488597-B - Display module, preparation method of display module and display device

CN113488597BCN 113488597 BCN113488597 BCN 113488597BCN-113488597-B

Abstract

The invention relates to the technical field of display equipment, in particular to a display module, a preparation method of the display module and a display device comprising the display module. The display module comprises a flexible panel, a polaroid, an optical adhesive layer and a cover plate which are sequentially laminated, wherein the flexible panel is flush with the edge of the polaroid, the edge of the optical adhesive layer protrudes out of the polaroid to form a protruding part, one end of the protruding part away from the polaroid is separated from the edge of the polaroid by a first preset distance, and the first area is at least one side edge of the display module or a part of the area of at least one side edge of the display module. Through at specific position for flexible panel and the marginal parallel and level of polaroid, and the edge protrusion in the polaroid of optical glue film can effectually prevent the entering of steam, reaches and carries out self waterproof purpose through the display module assembly. And the original attaching process can not be changed in the process of expanding the optical adhesive layer and cutting the optical adhesive layer and the polarizer and other structures.

Inventors

YANG HAOTIAN
FU XIAOLIANG
Pu Rengao
LIU XIAOXIA
LIU WEI
WEI XIANGDONG
LUO MIAO
WANG KANG
HAO XIAODONG
PU JINYU
SHEN JIAMING
WU CHENGLONG

Assignees

京东方科技集团股份有限公司
成都京东方光电科技有限公司

Dates

Publication Date: 20260505
Application Date: 20210525

Claims (11)

1. The utility model provides a display module assembly, its characterized in that includes flexible panel, polaroid, optical glue layer and the apron that stacks gradually and sets up, wherein: the display module is arranged in a first area, the flexible panel is flush with the edge of the polaroid, the edge of the optical adhesive layer protrudes out of the polaroid to form a protruding part, one end of the protruding part, which is far away from the polaroid, is separated from the edge of the polaroid by a first preset distance, and the first area is at least one side edge of the display module or a part of the edge of at least one side of the display module; The first preset distance is 0.05mm-0.25mm; The display module is arranged in a second area, the polaroid is contracted inwards by a second preset distance relative to the edge of the flexible panel, the optical adhesive layer is contracted inwards by a third preset distance relative to the edge of the polaroid, the second area is at least one side edge or a partial area of at least one side edge of the display module, a waterproof layer is arranged on one side, facing away from the optical adhesive layer, of the periphery of the cover plate, the waterproof layer comprises a waterproof adhesive tape and an adhesive layer formed by coating waterproof adhesive, the adhesive layer is arranged corresponding to the protruding part, and the waterproof adhesive tape is arranged corresponding to the second area.
2. The display module assembly of claim 1, wherein the protrusion is rectangular, trapezoidal, or arcuate in shape.
3. The display module of claim 1, wherein the first predetermined distance is 0.15mm.
4. The display module of claim 1, wherein a back film is disposed on a side of the flexible panel facing away from the polarizer, and the back film is flush with an edge of the flexible panel.
5. The display module of claim 1, wherein the second predetermined distance is 0.4mm and the third predetermined distance is 0.2mm.
6. The display module assembly of claim 1, wherein the flexible panel includes a body section and a bending section, the body section and the polarizer are stacked, the bending section protrudes the polarizer, and the protrusions are distributed on two sides of the bending section.
7. The display module of claim 6, wherein the length of the protrusions on both sides of the bending section along the edge of the display module is 1-4mm.
8. A display device comprising the display module of any one of claims 1-7.
9. The display device according to claim 8, further comprising a middle frame, wherein a waterproof layer is provided between the periphery of the cover plate and the middle frame, the waterproof layer comprises a waterproof tape and a glue coating layer formed by coating waterproof glue, and the waterproof layer corresponding to the protruding portion is the glue coating layer.
10. The display device according to claim 9, wherein the protrusion is formed at a lower side of the display module, the waterproof tapes are respectively disposed at upper, left and right sides of the cover plate, and the adhesive layer is disposed at a lower side of the cover plate.
11. A method for manufacturing a display module according to any one of claims 1 to 7, comprising the steps of: laminating the flexible panel and the polaroid; cutting the edges of the flexible panel and the polaroid integrally in a first area, so that the edges of the flexible panel and the polaroid are flush; aligning and attaching an optical adhesive layer and the polaroid, wherein in the first area, the edge of the optical adhesive layer protrudes out of a first preset distance of the polaroid to form a protruding part; And aligning and attaching the cover plate and the optical adhesive layer.

Description

Display module, preparation method of display module and display device Technical Field The invention relates to the technical field of display equipment, in particular to a display module, a preparation method of the display module and a display device comprising the display module. Background At present, along with the popularization of narrow frames and comprehensive screens of AMOLED mobile phones, under the condition that the waterproof level is unchanged, the narrower frames have higher requirements on waterproof design. The most critical components in the whole mobile phone are the modules, the structure of the modules is complex, the number of film layers are stacked, and if the modules are waterproof, the difficulty of waterproof design of the mobile phone can be greatly reduced. Disclosure of Invention In view of the above, the embodiment of the invention provides a display module, a manufacturing method of the display module and a display device comprising the display module, so as to solve the technical problem of poor waterproof effect caused by the structural design of the display module in the prior art. In order to achieve the above object, according to an aspect of an embodiment of the present invention, there is provided a display module. According to the first aspect of the embodiment of the invention, the display module comprises a flexible panel, a polaroid, an optical adhesive layer and a cover plate which are sequentially laminated, wherein: The display module is arranged in the first area, the flexible panel, the polaroid and the edge of the optical adhesive layer are flush, or The display module is arranged in a first area, the flexible panel is flush with the edge of the polaroid, the edge of the optical adhesive layer protrudes out of the polaroid to form a protruding part, one end of the protruding part, which is far away from the polaroid, is separated from the edge of the polaroid by a first preset distance, and the first area is at least one side edge of the display module or a part of the edge of at least one side of the display module. In the display module provided by the embodiment of the invention, a waterproof layer is arranged on one side, away from the optical adhesive layer, of the periphery of the cover plate, the waterproof layer comprises a waterproof adhesive tape and a rubberized layer formed by coating waterproof adhesive, the rubberized layer is arranged corresponding to the protruding part, and the waterproof adhesive tape is arranged corresponding to the second area. In the display module provided by the embodiment of the invention, the first preset distance is 0.05mm-0.25mm. In the display module provided by the embodiment of the invention, the first preset distance is 0.15mm. In the display module provided by the embodiment of the invention, a back film is arranged on one side of the flexible panel, which is away from the polaroid, and the back film is flush with the edge of the flexible panel. In the display module provided by the embodiment of the invention, the display module is in a second area, the polarizer is retracted by a second preset distance relative to the edge of the flexible panel, the optical adhesive layer is retracted by a third preset distance relative to the edge of the polarizer, and the second area is at least one side edge or a part of at least one side edge of the display module. In the display module provided by the embodiment of the invention, the second preset distance is 0.4mm, and the third preset distance is 0.2mm. In the display module provided by the embodiment of the invention, the flexible panel comprises a body section and a bending section, the body section and the polaroid are arranged in a lamination manner, the bending section protrudes out of the polaroid, and the protruding parts are distributed on two sides of the bending section. In the display module provided by the embodiment of the invention, the length of the protruding parts at the two sides of the bending section is 1-4mm along the edge of the display module. In order to achieve the above object, according to a second aspect of the embodiment of the present invention, there is further provided a display device, which includes the display module set provided in the first aspect of the embodiment of the present invention. In the display device provided by the embodiment of the invention, the display device further comprises a middle frame, a waterproof layer is arranged between the periphery of the cover plate and the middle frame, the waterproof layer comprises a waterproof adhesive tape and a rubberized layer formed by coating waterproof glue, and the waterproof layer corresponding to the protruding part is the rubberized layer. In the display device provided by the embodiment of the invention, the protruding part is formed at the lower side of the display module, the waterproof adhesive tapes are respectively arranged at the upper side, the left side and the