CN-122018193-A - Display module and display device

CN122018193ACN 122018193 ACN122018193 ACN 122018193ACN-122018193-A

Abstract

The application discloses a display module and a display device, wherein the display module comprises: a liquid crystal display panel, a backlight unit, and a first flexible circuit board. The liquid crystal display panel is provided with a conductive part, and one end of the first flexible circuit board can be connected with the first coil assembly through the conductive part as the conductive part at least penetrates through the part of the color film substrate, which is positioned in the non-display area. Therefore, the first substrate of the array substrate can be prevented from being directly connected with the first coil assembly, the frame size of the liquid crystal display panel can be reduced, and the display module can achieve the effect of a narrow frame.

Inventors

WANG YAODONG
ZHENG YANGLI
ZHANG XIAOPING
ZHANG LUO
DING HONGXUE
LIU FANGYI
GAO XIAOJUAN
ZHOU ZHENGUO
HU LINHUI

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: 20260512
Application Date: 20241104

Claims (15)

1. The display module is characterized by comprising a liquid crystal display panel, a backlight component and a first flexible circuit board; The liquid crystal display panel comprises a display area and a non-display area, wherein the liquid crystal display panel comprises a color film substrate and an array substrate which are oppositely arranged, the array substrate comprises a first substrate, a first coil assembly and a plurality of pixel electrodes, the first coil assembly and the plurality of pixel electrodes are distributed on the same side of the first substrate, the first coil assembly is provided with a plurality of grid holes, the grid holes are in one-to-one correspondence with at least part of the pixel electrodes, the orthographic projection of the pixel electrodes on the first substrate is positioned in the orthographic projection of the corresponding grid holes on the first substrate, and the liquid crystal display panel is also provided with a conductive part, and the conductive part at least penetrates through the part of the color film substrate positioned in the non-display area; the backlight component is positioned at one side of the array substrate, which is away from the color film substrate; one end of the first flexible circuit board is connected with the first coil assembly through the conductive part, and the other end of the first flexible circuit board can be bent to one side of the backlight component, which is away from the liquid crystal display panel.
2. The display module of claim 1, wherein the portion of the color film substrate located in the non-display area has a first via hole, and at least a portion of the conductive portion is embedded in the first via hole; one end of the conductive part, which is close to the first substrate, is electrically connected with the first coil assembly, and one end of the conductive part, which is away from the first substrate, is electrically connected with the first flexible circuit board.
3. The display module of claim 2, wherein the axial direction of the first via hole is perpendicular to the first substrate, and an end portion of the first flexible circuit board connected to the conductive portion is located at a side of the color film substrate facing away from the array substrate.
4. The display module of claim 2, wherein the color film substrate comprises a second substrate and a color resistance layer distributed on one side of the second substrate, wherein the liquid crystal display panel further comprises frame sealing glue and a liquid crystal layer, wherein the frame sealing glue is distributed in the non-display area and is positioned between the color film substrate and the array substrate, and the liquid crystal layer is positioned in an area surrounded by the frame sealing glue; the second substrate is provided with the first via hole, the frame sealing glue is provided with a second via hole communicated with the first via hole, one part of the conductive part is embedded into the first via hole, and the other part of the conductive part is embedded into the second via hole.
5. The display module assembly of any one of claims 1 to 4, wherein the first flexible circuit board includes a first portion connected to the conductive portion, a second portion located at a side of the backlight unit facing away from the liquid crystal display panel, and a third portion for connecting the first portion and the second portion; the backlight component comprises a frame body and a light source positioned in the frame body, wherein a first groove is formed in the side face of the frame body, facing the first flexible circuit board, of the frame body, and at least part of the third part is positioned in the first groove.
6. The display module of claim 5, further comprising a first polarizer located on a side of the color film substrate facing away from the array substrate, wherein a second groove is formed in an edge of the first polarizer facing the first flexible circuit board, and at least a portion of the first portion is located in the second groove; wherein the depth of the second groove is greater than the depth of the first groove.
7. The display module of claim 6, further comprising a second polarizer, wherein the second polarizer is positioned on one side of the array substrate facing away from the color film substrate, a third groove is formed in the edge of the second polarizer facing the first flexible circuit board, and the third groove is communicated with the first groove; The depth of the third groove is greater than or equal to that of the first groove, and the depth of the third groove is smaller than that of the second groove.
8. The display module of claim 7, wherein at least a portion of the edges of the first polarizer other than the edges of the second groove protrudes from the edges of the color film substrate, and/or wherein at least a portion of the edges of the second polarizer other than the edges of the third groove protrudes from the edges of the array substrate.
9. The display module of claim 5, wherein a bottom of the first groove is flush with an edge of the array substrate facing the first flexible circuit board and flush with an edge of the color film substrate facing the first flexible circuit board; Or the bottom of the first groove protrudes from the edge of the array substrate, which faces the first flexible circuit board, and protrudes from the edge of the color film substrate, which faces the first flexible circuit board.
10. The display module of claim 5, wherein a gap is provided between a bottom of the first recess and the third portion.
11. The display module assembly of claim 5, further comprising a first chip and a protective layer; The first chip is located at one side of the third part, which is away from the frame body, and is electrically connected with the third part, and the protective layer is located at one side of the first chip, which is away from the third part.
12. The display module assembly of claim 11, wherein the frame facing the first flexible circuit board side includes a first region overlapping the first flexible circuit board and a second region not overlapping the first flexible circuit board, the first region having the first recess; wherein a vertical distance between a side of the protective layer facing away from the first chip and the second region is less than or equal to 0.3 mm.
13. The display module according to any one of claims 1 to 4,6 to 12, further comprising a second coil assembly located at a side of the backlight unit facing away from the liquid crystal display panel, wherein an end of the first flexible circuit board facing away from the conductive portion is connected to the second coil assembly.
14. The display module according to any one of claims 1 to 4,6 to 12, further comprising a second flexible circuit board, the second flexible circuit board being in binding connection with the array substrate; The second flexible circuit board and the first flexible circuit board are oppositely arranged on two sides of the liquid crystal display panel.
15. A display device, characterized in that the display device comprises a middle case and the display module set according to 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 The display module is a module for displaying images and characters. Some current display modules are integrated with a Near Field Communication (NFC) module, so that the display module can be widely applied to application scenes of wireless payment, access control and data transmission. The NFC module generally comprises a coil and a chip, and data transmission among different devices can be realized through electromagnetic coupling effect of the coil. However, the coil and the chip in the NFC module increase the frame size of the display module. Disclosure of Invention The embodiment of the application provides a display module and a display device. The technical scheme is as follows: according to an aspect of the present application, there is provided a display module including a liquid crystal display panel, a backlight part, and a first flexible circuit board; The liquid crystal display panel comprises a display area and a non-display area, wherein the liquid crystal display panel comprises a color film substrate and an array substrate which are oppositely arranged, the array substrate comprises a first substrate, a first coil assembly and a plurality of pixel electrodes, the first coil assembly and the plurality of pixel electrodes are distributed on the same side of the first substrate, the first coil assembly is provided with a plurality of grid holes, the grid holes are in one-to-one correspondence with at least part of the pixel electrodes, the orthographic projection of the pixel electrodes on the first substrate is positioned in the orthographic projection of the corresponding grid holes on the first substrate, and the liquid crystal display panel is also provided with a conductive part, and the conductive part at least penetrates through the part of the color film substrate positioned in the non-display area; the backlight component is positioned at one side of the array substrate, which is away from the color film substrate; one end of the first flexible circuit board is connected with the first coil assembly through the conductive part, and the other end of the first flexible circuit board can be bent to one side of the backlight component, which is away from the liquid crystal display panel. Optionally, a portion of the color film substrate located in the non-display area is provided with a first via hole, and at least a portion of the conductive part is embedded into the first via hole; one end of the conductive part, which is close to the first substrate, is electrically connected with the first coil assembly, and one end of the conductive part, which is away from the first substrate, is electrically connected with the first flexible circuit board. Optionally, the axial direction of the first via hole is perpendicular to the first substrate, and the end part of the first flexible circuit board connected with the conductive part is located at one side of the color film substrate, which is away from the array substrate. The color film substrate comprises a second substrate, and a color resistance layer distributed on one side of the second substrate, wherein the liquid crystal display panel further comprises frame sealing glue and a liquid crystal layer, wherein the frame sealing glue is distributed in the non-display area, and is positioned between the color film substrate and the array substrate, and the liquid crystal layer is positioned in an area surrounded by the frame sealing glue; the second substrate is provided with the first via hole, the frame sealing glue is provided with a second via hole communicated with the first via hole, one part of the conductive part is embedded into the first via hole, and the other part of the conductive part is embedded into the second via hole. Optionally, the first flexible circuit board comprises a first part connected with the conductive part, a second part positioned on one side of the backlight component away from the liquid crystal display panel, and a third part used for connecting the first part and the second part; the backlight component comprises a frame body and a light source positioned in the frame body, wherein a first groove is formed in the side face of the frame body, facing the first flexible circuit board, of the frame body, and at least part of the third part is positioned in the first groove. Optionally, the display module further comprises a first polaroid, wherein the first polaroid is positioned on one side of the color film substrate, which is away from the array substrate, a second groove is formed in the edge of the first polaroid, which faces the first flexible circuit board, and at least part of the first part is positioned in the second groove; wherein the depth of the second groove is greater than the depth of the first groove. Optionally, the di