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CN-117727244-B - Display module and mobile terminal

CN117727244BCN 117727244 BCN117727244 BCN 117727244BCN-117727244-B

Abstract

The embodiment of the application provides a display module and a mobile terminal, wherein the display module comprises a back plate, a display panel, a circuit board assembly and a protection part, the display panel is arranged on one side of the back plate, the circuit board assembly and the display panel are arranged at intervals along a first direction, the circuit board assembly is electrically connected with the display panel, the circuit board assembly comprises a first surface and a second surface which are oppositely arranged, the protection part extends from the first surface of the circuit board assembly to the second surface of the circuit board assembly, the circuit board assembly is covered by the protection part, and the protection part is fixedly connected with the circuit board assembly through screws, so that the circuit board assembly is protected through the protection part, the service life and the reliability of the circuit board assembly are improved, and meanwhile, when the position of the circuit board assembly is pressed, the protection layer can avoid abnormal sound problems in the prior art.

Inventors

  • QIU YUE

Assignees

  • 武汉华星光电技术有限公司

Dates

Publication Date
20260512
Application Date
20240103

Claims (10)

  1. 1. A display module, comprising: A back plate; the display panel is arranged on one side of the backboard; The circuit board assembly comprises a first surface and a second surface which are oppositely arranged, the circuit board assembly comprises a printed circuit board and a flexible circuit board, the printed circuit board and the display panel are arranged at intervals along the end part of the display panel, one end of the flexible circuit board is connected with the display panel, and the other end of the flexible circuit board is connected with the printed circuit board; A protection part extending from a first surface of the circuit board assembly to a second surface of the circuit board assembly, the protection part covering the circuit board assembly; the protection part, the printed circuit board and the flexible circuit board are fixedly connected through screws.
  2. 2. The display module of claim 1, wherein the protection portion comprises a first sub-portion, a second sub-portion, and a third sub-portion, the third sub-portion connecting the first sub-portion and the second sub-portion; The first sub-portion is located on the first surface, the first sub-portion is arranged at intervals with the first surface, the second sub-portion is located on the second surface, the second sub-portion is arranged at intervals with the second surface, the third sub-portion is located on one side, far away from the display panel, of the circuit board assembly, and the third sub-portion is arranged at intervals with the circuit board assembly.
  3. 3. The display module according to claim 2, wherein the first sub-portion is provided with a threaded hole, the second sub-portion is provided with a first through hole, the circuit board assembly is provided with a second through hole, the first through hole, the second through hole and the threaded hole are correspondingly arranged, the screw penetrates through the first through hole and the second through hole, and the screw is in threaded connection with the threaded hole.
  4. 4. A display module according to claim 3, wherein at least part of the flexible circuit board is disposed between the printed circuit board and the first sub-portion, and the first through hole penetrates the printed circuit board and the flexible circuit board.
  5. 5. The display module of claim 4, wherein a first binding end is arranged on a side of the display panel, which is close to the printed circuit board, and a second binding end is arranged on a side of the printed circuit board, which is close to the display panel; The flexible circuit board comprises a first part connected with the first binding end, a second part connected with the second binding end and a third part positioned between the first part and the second part; The printed circuit board comprises a first surface and a second surface, at least part of the third part is positioned on the first surface, and the first through hole penetrates through the third part.
  6. 6. The display module of claim 5, wherein the display panel further comprises an edge-covering tape extending from an edge of the display panel away from the back plate to a side of the back plate away from the display panel, the edge-covering tape covering the printed circuit board and the flexible circuit board; Wherein, at least part the sticky tape of borduring is located circuit board subassembly with between the protection part, third through-hole and fourth through-hole have been seted up to the sticky tape of borduring, the third through-hole corresponds first through-hole sets up, fourth through-hole corresponds the screw hole sets up, the screw passes first through-hole third through-hole second through-hole and fourth through-hole, just the screw with screw hole threaded connection.
  7. 7. The display module of claim 5, wherein the display panel further comprises an edge-covering tape, a first end of the edge-covering tape is connected to an edge of the display panel, a second end of the edge-covering tape extends from the edge of the display panel in a direction toward the first sub-portion, and the second end of the edge-covering tape is connected to a side of the first sub-portion away from the printed circuit board; the front projection of the edge-covering adhesive tape on the display panel covers the first binding end, and the front projection of the first sub-part on the printed circuit board covers the second binding end.
  8. 8. The display module of claim 7, wherein the display panel includes an auxiliary adhesive tape disposed between the second sub-portion of the protective portion and the printed circuit board; The auxiliary adhesive tape is connected with the second sub-part of the protection part, and the orthographic projection of the auxiliary adhesive tape on the printed circuit board covers the orthographic projection of at least part of the flexible circuit board on the printed circuit board.
  9. 9. The display module assembly of claim 4, wherein the back plate further comprises a tongue piece, the tongue piece is disposed on a side of the back plate away from the display panel, the tongue piece extends from the back plate toward the printed circuit board, and at least a portion of the tongue piece is disposed between the printed circuit board and the protection portion; the second surface of the printed circuit board is arranged on the tongue piece, a fifth through hole is formed in the tongue piece, the fifth through hole corresponds to the first through hole, the screw penetrates through the first through hole, the fifth through hole and the second through hole, and the screw is in threaded connection with the threaded hole.
  10. 10. A mobile terminal comprising a terminal body and a display module according to any one of claims 1 to 9, the terminal body being integral with the display module.

Description

Display module and mobile terminal Technical Field The application belongs to the technical field of display, and particularly relates to a display module and a mobile terminal. Background In the existing display device, especially in a Notebook (NB), two ends of a flexible circuit board are respectively bound to a display panel and a printed circuit board, and the outside of the flexible circuit board is covered with a bag Bian Jiao having a shielding function; at present, the fixing mode of the printed circuit board and the backlight module is mainly screw locking and adhesive tape sticking, in order to ensure that the flexible circuit board is not pulled and torn in the assembly and mechanical test of the display device, other parts of the flexible circuit board are not fixed except for binding parts of the flexible circuit board, and when the parts where the flexible circuit board is located are pressed, the positions of the flexible circuit board are easy to deform, so that abnormal sounds appear, and the user experience is influenced. Disclosure of Invention The embodiment of the application provides a display module and a mobile terminal, which are used for relieving the defects in the related technology. In order to achieve the above functions, the technical solution provided by the embodiment of the present application is as follows: the embodiment of the application provides a display module, which comprises: A back plate; the display panel is arranged on one side of the backboard; The circuit board assembly is arranged at intervals along a first direction with the display panel, is electrically connected with the display panel and comprises a first surface and a second surface which are oppositely arranged; A protection part extending from a first surface of the circuit board assembly to a second surface of the circuit board assembly, the protection part covering the circuit board assembly; the protection part is fixedly connected with the circuit board assembly through screws. Optionally, in an embodiment, the protection portion includes a first sub-portion, a second sub-portion, and a third sub-portion, and the third sub-portion connects the first sub-portion and the second sub-portion; The first sub-portion is located on the first surface, the first sub-portion is arranged at intervals with the first surface, the second sub-portion is located on the second surface, the second sub-portion is arranged at intervals with the second surface, the third sub-portion is located on one side, far away from the display panel, of the circuit board assembly, and the third sub-portion is arranged at intervals with the circuit board assembly. Optionally, in an embodiment, the first sub-portion is provided with a threaded hole, the second sub-portion is provided with a first through hole, the circuit board assembly is provided with a second through hole, the first through hole, the second through hole and the threaded hole are correspondingly arranged, the screw penetrates through the first through hole and the second through hole, and the screw is in threaded connection with the threaded hole. Optionally, in an embodiment, the circuit board assembly includes a printed circuit board and a flexible circuit board, where the printed circuit board and the display panel are disposed at intervals along the first direction, one end of the flexible circuit board is connected to the display panel, and the other end of the flexible circuit board is connected to the printed circuit board; At least part of the flexible circuit board is arranged between the printed circuit board and the first sub-part, and the first through hole penetrates through the printed circuit board and the flexible circuit board. Optionally, in an embodiment, a side of the display panel close to the printed circuit board is provided with a first binding end, and a side of the printed circuit board close to the display panel is provided with a second binding end; The flexible circuit board comprises a first part connected with the first binding end, a second part connected with the second binding end and a third part positioned between the first part and the second part; The printed circuit board comprises a first surface and a second surface, at least part of the third part is positioned on the first surface, and the first through hole penetrates through the third part. Optionally, in an embodiment, the display panel further includes an edge-covering tape, the edge-covering tape extending from an edge of the display panel away from the back plate to a side of the back plate away from the display panel, the edge-covering tape covering the printed circuit board and the flexible circuit board; Wherein, at least part the sticky tape of borduring is located circuit board subassembly with between the protection part, third through-hole and fourth through-hole have been seted up to the sticky tape of borduring, the third through-hole corresponds first thr