CN-122003653-A - Display device

CN122003653ACN 122003653 ACN122003653 ACN 122003653ACN-122003653-A

Abstract

A display device is disclosed. The display device comprises a display panel, wherein the display panel comprises a touch area and a peripheral area surrounding the touch area, the peripheral area comprises a binding area located at one side of the touch area in a first direction and a fan-out area located between the binding area and the touch area, the touch conductive layer is located at the display side of the display panel and comprises a plurality of fan-out lines extending from the fan-out area to the binding area, the fan-out lines comprise ground level signal lines, a first protection layer is located at least at one side of the fan-out area, which is away from the display panel, the front projection of the first protection layer on the display panel is overlapped with the front projection of the fan-out lines located at the fan-out area on the display panel, the first conductive layer is located at least at one side of the fan-out area, which is away from the display panel, and the first conductive layer is electrically connected with the ground level signal lines.

Inventors

ZHANG XING
CHEN DONG
CHEN YING
WANG YI
CHEN XUEFANG
LIU JIANFENG
YANG GUODONG
PU XUN
WANG XIAOYUAN
YANG KUN
CHEN JUNMING
WANG NAN
LIU YAN
WAN BIN
WANG MING
LI KUAN
PU XINGYU
GU KEKE
JING DONGSHENG
HE YANG
LIU XIAO

Assignees

京东方科技集团股份有限公司
重庆京东方光电科技有限公司

Dates

Publication Date: 20260508
Application Date: 20240906

Claims (20)

A display device, wherein the display device comprises: the display panel comprises a touch control area and a peripheral area surrounding the touch control area, wherein the peripheral area comprises a binding area positioned at one side of the touch control area in a first direction and a fan-out area positioned between the binding area and the touch control area; The touch conductive layer is positioned on the display side of the display panel and comprises a plurality of fan-out lines extending from the fan-out area to the binding area, wherein the plurality of fan-out lines comprise a ground level signal line; The display panel comprises a plurality of fan-out lines, a first protection layer, a second protection layer, a first display layer and a second protection layer, wherein the first protection layer is positioned at one side of the plurality of fan-out lines, which is away from the display panel, at least in the fan-out area; The first conducting layer is positioned at least at one side of the fan-out area, which is away from the display panel, and is electrically connected with the ground level signal wire.
The display device of claim 1, wherein the first conductive layer comprises a first portion, wherein the front projection of the first portion on the display panel falls within the front projection of the first protective layer on the display panel; The first part is electrically connected with the ground level signal line through a via hole penetrating the first protective layer, or The first conductive layer further comprises a second part electrically connected with the first part, the second part is located on one side of the first part facing the binding area, and the second part is overlapped with the ground level signal wire through the side face of the first protective layer.
The display device of claim 2, wherein the first portion has an opening, an orthographic projection of the opening at the display panel overlapping an orthographic projection of the fan-out line at the display panel.
A display device according to claim 2 or 3, wherein the first portion and the first protective layer each have edges parallel in a second direction, and a distance between an adjacent edge of the first portion parallel in the second direction and an edge of the first protective layer parallel in the second direction is greater than 0, the second direction intersecting the first direction.
The display device according to any one of claims 2 to 4, wherein a width of the first portion is equal to a width of the first protective layer in the second direction.
The display device according to any one of claims 1 to 5, wherein the display device further comprises: The first covering layer is positioned on one side of the first conducting layer, which is away from the display panel, in the first peripheral area, and the orthographic projection of the first covering layer on the display panel is at least positioned in the fan-out area.
The display device of claim 6, wherein the material of the first cover layer comprises an ultraviolet curable glue.
The display device according to any one of claims 1 to 7, wherein the touch conductive layer further comprises: the binding electrodes are positioned in the binding areas and electrically connected with the fan-out lines; the display device further includes: the first flexible circuit board is bound with the binding electrode; The first flexible circuit board comprises a binding electrode, a first adhesive tape, a second conductive layer and a first conductive layer, wherein the first adhesive tape is positioned on one side of the first flexible circuit board far away from the binding electrode, and the second conductive layer is in contact with the first conductive layer.
The display device of claim 8, wherein the first tape further comprises a first insulating layer on a side of the second conductive layer facing away from the first flexible circuit board; The display device comprises a first covering layer, and a partial area of the first covering layer is positioned on one side of the first insulating layer, which faces away from the display panel.
The display device of claim 8 or 9, wherein the first tape further comprises a second insulating layer between the second conductive layer and the first flexible circuit board, the second insulating layer comprising at least one removed area; the display device further includes: at least one conductive adhesive is located between at least a portion of the ground level signal line and the second conductive layer in the removal region.
The display device of claim 10, wherein the front projection of the conductive paste on the display panel and the front projection of the first protective layer on the display panel do not overlap each other, and the front projection of the conductive paste on the display panel is located on a side of the front projection of the first protective layer on the display panel toward the bonding region; The front projection of the conductive adhesive on the display panel and the front projection of the fan-out lines, except the ground level signal line, on the display panel are not overlapped, and the front projection of the conductive adhesive on the display panel and the front projection of the binding electrode on the display panel are not overlapped.
The display device according to claim 10 or 11, wherein the display device includes a plurality of the ground level signal lines including a first ground level signal line, a second ground level signal line, and at least one third ground level signal line at the fan-out area; The plurality of binding electrodes are divided into a plurality of binding electrode groups which are arranged along a second direction, and the binding electrodes are not included between two adjacent binding electrode groups; The at least one conductive paste includes a first conductive paste in contact with the first ground level signal line, a second conductive paste in contact with the second ground level signal line, and a third conductive paste in contact with the third ground level signal line.
The display device of claim 12, wherein the ground level signal line includes a first sub-signal line crossing the first direction along a stretching direction, a front projection of the first protective layer on the display panel and a front projection of the first sub-signal line on the display panel do not overlap each other, and a front projection of the conductive paste on the display panel and a front projection of the first sub-signal line on the display panel overlap each other.
The display device of claim 13, wherein at least part of the ground level signal lines comprise second sub signal lines extending in parallel with the first sub signal lines, and an orthographic projection of the second sub signal lines on the display panel is positioned on a side of an orthographic projection of the first sub signal lines on the display panel toward the functional area; And the orthographic projection of the first protective layer on the display panel covers the orthographic projection of the second sub-signal line on the display panel.
The display device according to claim 14, wherein the second sub-signal line and the first sub-signal line are electrically connected to different bonding electrodes, respectively.
The display device according to claim 14, wherein the second sub-signal line and the first sub-signal line are electrically connected to the same bonding electrode.
The display device according to any one of claims 1 to 16, wherein the display device further comprises: the first adhesive tape is positioned at one side of the touch conductive layer, which is away from the display panel, at least in the binding area; The touch control device comprises a touch control conducting layer, a first polaroid and a second polaroid, wherein the touch control conducting layer is arranged on one side, away from the display panel, of the touch control conducting layer, the orthographic projection of the first polaroid on the display panel at least covers the touch control area, a gap is formed between the first polaroid and the first adhesive tape in the direction parallel to the plane where the display panel is arranged, and at least part of the area of the fanout line is positioned in the orthographic projection of the gap on the display panel.
The display device of claim 17, wherein an orthographic projection of the first polarizer on the display panel overlaps an orthographic projection of the first protective layer on the display panel; the touch conductive layer further comprises a plurality of binding electrodes positioned in the binding area; The plurality of binding electrodes are divided into a plurality of binding electrode groups, the area between the front projection of the first protection layer on the display panel and the binding electrode groups is overlapped, the front projection of the first protection layer on the display panel and the front projection of the first adhesive tape on the display panel are overlapped, and the front projection of the first protection layer on the display panel and the front projection of the binding electrode on the display panel are not overlapped.
The display device according to any one of claims 1 to 16, wherein the front projection of the first protective layer on the display panel covers the touch area; The display device further comprises a first polaroid which is positioned on one side of the first protective layer, which is away from the display panel, and the orthographic projection of the first polaroid on the display panel covers the orthographic projection of the first protective layer on the display panel.
The display device of any one of claims 17-19, wherein a distance between a surface of the first polarizer facing away from the display panel and the display panel is greater than a distance between a surface of the first adhesive tape facing away from the display panel and the display panel.

Description

Display device Technical Field The disclosure relates to the field of display technologies, and in particular, to a display device. Background In the prior art, one of the touch schemes is to provide a touch conductive layer above a color film substrate. However, a touch conductive layer is disposed above the color film substrate, and the output and the reception of the excitation signal of the touch electrode are completed by the same electrode, so that more touch signal lines need to be disposed. For narrow frame products, the wiring space of the fan-out areas is limited, so that the distance between the touch signal lines in the fan-out areas is smaller, and the risk of static electricity damage exists. Disclosure of Invention The embodiment of the disclosure provides a display device, the display device includes: the display panel comprises a touch control area and a peripheral area surrounding the touch control area, wherein the peripheral area comprises a binding area positioned at one side of the touch control area in a first direction and a fan-out area positioned between the binding area and the touch control area; The touch conductive layer is positioned on the display side of the display panel and comprises a plurality of fan-out lines extending from the fan-out area to the binding area, wherein the plurality of fan-out lines comprise ground level signal lines; The front projection of the first protection layer on the display panel is overlapped with the front projection of the plurality of fan-out lines on the fan-out area on the display panel; The first conducting layer is positioned on one side of the first protective layer, which is away from the display panel, at least in the fan-out area, and is electrically connected with the ground level signal wire. In some embodiments, the first conductive layer includes a first portion; The front projection of the first part on the display panel falls into the front projection of the first protection layer on the display panel; The first part is electrically connected with the ground level signal line through a via hole penetrating the first protective layer, or The first conductive layer further comprises a second part electrically connected with the first part, the second part is positioned on one side of the first part facing the binding area, and the second part is overlapped with the ground level signal wire through the side surface of the first protective layer. In some embodiments, the first portion has an opening, and the front projection of the opening on the display panel overlaps with the front projection of the fan-out line on the display panel. In some embodiments, the first portion and the first protective layer each have edges parallel in a second direction, and a distance between an adjacent edge of the first portion parallel in the second direction and an edge of the first protective layer parallel in the second direction is greater than 0, and the second direction intersects the first direction. In some embodiments, in the second direction, the width of the first portion is equal to the width of the first protective layer. In some embodiments, the display device further comprises: the first covering layer is positioned on one side of the first conducting layer, which is away from the display panel, in the first peripheral area, and the orthographic projection of the first covering layer on the display panel is at least positioned in the fan-out area. In some embodiments, the material of the first cover layer includes an ultraviolet curable glue. In some embodiments, the touch conductive layer further includes: the binding electrodes are positioned in the binding areas and electrically connected with the fan-out lines; the display device further includes: the first flexible circuit board is bound with the binding electrode; The first adhesive tape is positioned on one side of the first flexible circuit board far away from the binding electrode and comprises a second conductive layer, and the second conductive layer is in contact with the first conductive layer. In some embodiments, the first tape further comprises a first insulating layer on a side of the second conductive layer facing away from the first flexible circuit board; The display device comprises a first cover layer, and a partial area of the first cover layer is positioned on one side of the first insulating layer, which faces away from the display panel. In some embodiments, the first tape further comprises a second insulating layer between the second conductive layer and the first flexible circuit board; the display device further includes: At least one conductive glue is located between the at least partially level signal line and the second conductive layer in the removal area. In some embodiments, the front projection of the conductive adhesive on the display panel and the front projection of the first protective layer on the display panel do not overlap each other, an