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CN-121986367-A - Display module and display device

CN121986367ACN 121986367 ACN121986367 ACN 121986367ACN-121986367-A

Abstract

A display module (000) and a display device, the display module (000) includes a display panel (100), a flexible circuit board (200), and a first supporting portion (300). By letting the distance between the first portion (201) of the flexible circuit board (200) and the first panel portion (101) be equal to the distance between the second portion (202) of the flexible circuit board (200) and the first panel portion (101), it is ensured that the flexible circuit board (200) is not in a bent state, and thus that the conductive layer (220) integrated inside the flexible circuit board (200) is not resilient. Therefore, the second part (202) in the flexible circuit board (200) does not apply a pulling force to the back surface of the second panel part (102) in the display panel (100), so that the flatness of the back surface of the first panel part (101) in the display panel (100) is higher, and the probability of the front surface of the display module (000) having an imprint can be effectively reduced.

Inventors

  • Jiao Haochen
  • YAO MENGLIANG
  • HUANG XIAOXIA
  • SUN HAO
  • WU YIQIAN
  • ZENG GUODONG
  • Zeng Yilun
  • CHEN WEI
  • WANG YONGLE
  • YANG ENJIAN

Assignees

  • 京东方科技集团股份有限公司
  • 重庆京东方显示技术有限公司

Dates

Publication Date
20260505
Application Date
20240830

Claims (15)

  1. The display module is characterized by comprising a display panel (100), a flexible circuit board (200) and a first supporting part (300); The display panel (100) comprises a first panel part (101) and a second panel part (102), and a panel bending part (103) for connecting the first panel part (101) and the second panel part (102), wherein the first panel part (101) is provided with a display surface (S1) and a back surface (S2) arranged opposite to the display surface (S1), and the second panel part (102) is distributed on one side of the back surface (S2) of the first panel part (101); the flexible circuit board (200) is distributed on one side of the back surface (S2) of the first panel part (101), and the flexible circuit board (200) comprises a first part (201) and a second part (202) and a connecting part (203) used for connecting the first part (201) and the second part (202), wherein the first part (201) and the second panel part (102) are in binding connection on one side away from the first panel part (101); The first support (300) is located between the second portion (202) and the back surface (S2) of the first panel (101); wherein the distance between the first portion (201) and the first panel portion (101) is equal to the distance between the second portion (202) and the first panel portion (101).
  2. A display module according to claim 1, characterized in that the distance between the connection portion (203) and the first panel portion (101) is equal to the distance between the first portion (201) and the first panel portion (101).
  3. A display module according to claim 2, wherein a face of the first portion (201) facing the first panel portion (101) is coplanar with a face of the second portion (202) facing the first panel portion (101) and coplanar with a face of the connection portion (203) facing the first panel portion (101); Wherein one surface of the flexible circuit board (200) facing the first panel part (101) is parallel to the back surface (S2) of the first panel part (101).
  4. The display module according to claim 1, further comprising a second support portion (400) between the first panel portion (101) and the second panel portion (102); Wherein the thickness of the first support part (300) is greater than the thickness of the second support part (400).
  5. The display module assembly of claim 4, wherein a sum of thicknesses of the second support portion (400) and the second panel portion (102) is equal to a thickness of the first support portion (300).
  6. The display module according to any one of claims 1 to 5, wherein the flexible circuit board (200) comprises a flexible substrate (210), at least two conductive layers (220) and at least two insulating layers (230) which are stacked; The at least two conductive layers (220) and the at least two insulating layers (230) are in one-to-one correspondence, the insulating layers (230) are located on one side, away from the flexible substrate (210), of the corresponding conductive layers (220), and orthographic projections of the conductive layers (220) on the flexible substrate (210) are located in orthographic projections of the corresponding insulating layers (230) on the flexible substrate (210).
  7. The display module according to claim 6, wherein the conductive layer (220) comprises a plurality of conductive bodies (220 a), and a gap (Z) is provided between two adjacent conductive bodies (220 a); The insulating layer (230) comprises a first insulating portion (230 a) covering the conductive bodies (220 a), and a second insulating portion (230 b) distributed between two adjacent conductive bodies (220 a); Wherein the thickness of the second insulating portion (230 b) is greater than the thickness of the first insulating portion (230 a).
  8. The display module of claim 7, wherein a face of the second insulating portion (230 b) facing away from the flexible substrate (210) is coplanar with a face of the first insulating portion (230 a) facing away from the flexible substrate (210).
  9. The display module according to claim 7 or 8, wherein the at least two conductive layers (220) comprise a first conductive layer (221) and a second conductive layer (222), the first conductive layer (221) being a conductive layer distributed on a side of the flexible substrate (210) facing the first panel portion (101) and furthest from the flexible substrate (210), the second conductive layer (222) being a conductive layer distributed on a side of the flexible substrate (210) facing away from the first panel portion (102) and furthest from the flexible substrate (210); The at least two insulating layers (230) include a first insulating layer (231) corresponding to the first conductive layer (221), and a second insulating layer (232) corresponding to the second conductive layer (222); the flexible display panel (200) further comprises a first shielding layer (240) at a side of the first insulating layer (231) facing away from the first conductive layer (221), and a second shielding layer (250) at a side of the second insulating layer (232) facing away from the second conductive layer (222).
  10. The display module of claim 9, wherein the second conductive layer (222) has an external connection portion (222 a), the flexible circuit board (200) has a hollowed-out area (U) for penetrating the second shielding layer (250) and the second insulating layer (232), and an orthographic projection of the hollowed-out area (U) on the flexible substrate (210) is located within an orthographic projection of the external connection portion (222 a) on the flexible substrate (210); The front projection of the hollowed-out area (U) on the first panel part (101) is positioned in the front projection of the first supporting part (300) on the first panel part (101).
  11. The display module is characterized by comprising a display panel (100), a flexible circuit board (200) and a first supporting part (300); The display panel (100) comprises a first panel part (101) and a second panel part (102), and a panel bending part (103) for connecting the first panel part (101) and the second panel part (102), wherein the first panel part (101) is provided with a display surface (S1) and a back surface (S2) arranged opposite to the display surface (S1), and the second panel part (102) is distributed on one side of the back surface (S2) of the first panel part (101); the flexible circuit board (200) is distributed on one side of the back surface (S2) of the first panel part (101), and the flexible circuit board (200) comprises a first part (201) and a second part (202) and a connecting part (203) used for connecting the first part (201) and the second part (202), wherein the first part (201) and the second panel part (102) are in binding connection on one side away from the first panel part (101); The first support (300) is located between the second portion (202) and the back surface (S2) of the first panel (101); wherein the flexibility of the connecting portion (203) is higher than the flexibility of the first portion (201) and higher than the flexibility of the second portion (202).
  12. A display module according to claim 11, characterized in that the rigidity of the material from which the connection portion (203) is made is smaller than the rigidity of the material from which the first portion (201) is made and smaller than the rigidity of the material from which the second portion (202) is made; And/or the connection portion (203) has a plurality of through holes (V) penetrating the connection portion (203) in a thickness direction parallel to the connection portion (203).
  13. The display module according to claim 11, wherein a distance between the first portion (201) and the first panel portion (101) is greater than or equal to a distance between the second portion (202) and the first panel portion (101).
  14. The display module according to any one of claims 11 to 13, wherein the flexible circuit board (200) comprises a flexible substrate (210), at least two conductive layers (220) and at least two insulating layers (230) arranged in a stacked manner; The at least two conductive layers (220) and the at least two insulating layers (230) are in one-to-one correspondence, the insulating layers (230) are positioned on one side of the corresponding conductive layers (220) away from the flexible substrate (210), and the orthographic projection of the conductive layers (220) on the flexible substrate (210) is positioned in the orthographic projection of the corresponding insulating layers (230) on the flexible substrate (210); Wherein regions of a face of the insulating portion layer (230) facing away from the flexible substrate (210) are coplanar.
  15. A display device, characterized in that the display device comprises a frame body and a display module connected with the frame body, wherein the display module is the display module of any one of claims 1 to 14.

Description

Display module and display device Technical Field The application relates to the technical field of display, in particular to a display module and a display device. Background With the development of display technology, the demand and application range of display devices are expanding. Common display devices include mobile phones, televisions, tablet computers, notebook computers, displays and the like. A display device may generally include a display module and a frame (also commonly referred to as a center). The display module can comprise a display panel and a flexible circuit board which is in binding connection with the display panel, wherein the flexible circuit board is generally distributed on the back of the display panel. However, in order to make the flatness of the flexible circuit board on the back of the display panel generally lower, an additional force is applied to the back of the display panel by the flexible circuit board in the process of assembling the display panel and the flexible circuit board, so that the front of the display module is poor in imprint, and the reliability of the display module is lower. Disclosure of Invention The embodiment of the application provides a display module and a display device. The problem of the lower reliability of the display module assembly of prior art can be solved, technical scheme is as follows: In one aspect, a display module is provided, including a display panel, a flexible circuit board, and a first support portion; The display panel includes: the display device comprises a first panel part, a second panel part and a panel bending part, wherein the panel bending part is used for connecting the first panel part and the second panel part, the first panel part is provided with a display surface and a back surface opposite to the display surface, and the second panel part is distributed on one side of the back surface of the first panel part; The flexible circuit board is distributed on one side of the back surface of the first panel part and comprises a first part, a second part and a connecting part for connecting the first part and the second part, wherein the first part is in binding connection with one side of the second panel part, which is away from the first panel part; The first support portion is located between the second portion and the back of the first panel portion; Wherein the distance between the first portion and the first panel portion is equal to the distance between the second portion and the first panel portion. Optionally, the distance between the connecting portion and the first panel portion is equal to the distance between the first portion and the first panel portion. Optionally, a face of the first portion facing the first panel portion is coplanar with a face of the second portion facing the first panel portion and coplanar with a face of the connecting portion facing the first panel portion; Wherein, the flexible circuit board is towards the one side of first panel portion, with the back of first panel portion is parallel. Optionally, the display module further comprises a second supporting part positioned between the first panel part and the second panel part; Wherein the thickness of the first supporting part is greater than the thickness of the second supporting part. Optionally, the sum of the thicknesses of the second support portion and the second panel portion is equal to the thickness of the first support portion. Optionally, the flexible circuit board comprises a flexible substrate, at least two conductive layers and at least two insulating layers, wherein the flexible substrate, the at least two conductive layers and the at least two insulating layers are arranged in a stacked manner; The at least two conductive layers and the at least two insulating layers are in one-to-one correspondence, the insulating layers are positioned at one sides of the corresponding conductive layers, which are away from the flexible substrate, and the orthographic projection of the conductive layers on the flexible substrate is positioned in the orthographic projection of the corresponding insulating layers on the flexible substrate. Optionally, the conductive layer includes a plurality of conductive bodies, and a gap is formed between two adjacent conductive bodies; The insulating layer comprises a first insulating part covering the conductive body and a second insulating part distributed between two adjacent conductive bodies; wherein the thickness of the second insulating part is greater than the thickness of the first insulating part. Optionally, a face of the second insulating portion facing away from the flexible substrate is coplanar with a face of the first insulating portion facing away from the flexible substrate. Optionally, the at least two conductive layers comprise a first conductive layer and a second conductive layer, wherein the first conductive layer is a conductive layer distributed on one side of the flexibl