CN-224234110-U - Display panel and display device

CN224234110UCN 224234110 UCN224234110 UCN 224234110UCN-224234110-U

Abstract

A display panel and a display device are provided to improve the abnormality caused by the reliability test. The display panel comprises a substrate, a plurality of sub-pixels positioned in a display area, a plurality of data lines positioned in the display area and a first frame area, a first contact pad group positioned in a first signal access area, a second contact pad group and a first organic film layer, and a first inorganic film layer positioned on one side of the first organic film layer far away from the substrate. The second contact pad set is positioned on one side of the first contact pad set away from the display area. The first contact pad set and the second contact pad set are configured to be bound with a driver chip. The orthographic projection of the first organic film layer on the substrate is positioned between the orthographic projections of the first contact pad group and the second contact pad group on the substrate. The first inorganic film layer has at least one of at least one first inorganic groove at least partially between the first contact pad set and the first organic film layer, and at least one second inorganic groove at least partially between the second contact pad set and the first organic film layer in the first frame region.

Inventors

ZHAO DI
TAO TAO
LIU YUNJIN
ZHANG GUANGCHEN
ZHANG YADONG
WANG GE
ZHANG JIE
XU WENJING

Assignees

京东方科技集团股份有限公司
绵阳京东方光电科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250530

Claims (20)

1. A display panel, comprising: The display device comprises a substrate, a first display area and a second display area, wherein the first display area is positioned on one side of the first display area; A plurality of sub-pixels located in the display area; a plurality of data lines located in the display area and the first frame area, the plurality of sub-pixels being connected to the plurality of data lines; A first contact pad group and a second contact pad group located at the first signal access region, the second contact pad group being located at a side of the first contact pad group away from the display region, the first contact pad group including a plurality of first contact pads connected to the plurality of data lines, the second contact pad group including a plurality of second contact pads configured to be bound with a driving chip; The first organic film layer is positioned in the first signal access area, the orthographic projection of the first organic film layer on the substrate is not overlapped with the orthographic projections of the first contact pad group and the second contact pad group on the substrate, and the first organic film layer is positioned between the orthographic projections of the first contact pad group and the second contact pad group on the substrate along the direction away from the display area; The first inorganic film layer is positioned on one side of the first organic film layer away from the substrate, and at least one of the first inorganic film layer and the second inorganic film layer is positioned in the first frame area; at least a portion of the at least one first inorganic groove is located between the first set of contact pads and the orthographic projection of the first organic film layer on the substrate; at least a portion of the at least one second inorganic groove is located between the second set of contact pads and the orthographic projection of the first organic film layer on the substrate.
2. The display panel of claim 1, wherein the front projection of the first inorganic film layer on the substrate covers the front projection of the first organic film layer on the substrate.
3. The display panel of claim 1, further comprising a test unit located in the first signal access region, the test unit located between the first set of contact pads and the second set of contact pads in a direction away from the display region, the front projection of the test unit at the substrate at least partially overlapping the front projection of the first organic film layer at the substrate.
4. The display panel of claim 3, wherein the test unit comprises a plurality of test pins and a plurality of test circuits, the plurality of test pins being located on a side of the plurality of test circuits remote from the first set of contact pads; The front projection of the first organic film layer on the substrate at least partially overlaps with the front projections of the plurality of test pins and the plurality of test circuits on the substrate.
5. The display panel of claim 4, wherein the first organic film layer comprises a first organic bump and a second organic bump, the first and second organic bumps are disposed in a same layer, the first and second organic bumps are disposed along an arrangement direction of the plurality of test circuits, an orthographic projection of the first and second organic bumps on the substrate at least partially overlaps an orthographic projection of the plurality of test circuits on the substrate, and the first and second organic bumps are adjacent to the first inorganic groove in a direction away from the display area.
6. The display panel of claim 5, wherein the first organic film layer further comprises a third organic bump and a fourth organic bump, the third organic bump being disposed in the same layer as the first organic bump, the fourth organic bump being located on a side of the third organic bump away from the substrate, an orthographic projection of the third organic bump and the fourth organic bump on the substrate at least partially overlapping an orthographic projection of the plurality of test pins on the substrate, and the third organic bump and the fourth organic bump being each adjacent to the second inorganic groove in a direction away from the display area.
7. The display panel of claim 6, wherein the test leads comprise a first lead layer and a second lead layer stacked in sequence, the first lead layer being positioned on a side of the second lead layer near the substrate, the second lead layer being in contact with the first lead layer through a via hole formed in the third organic bump, the fourth organic bump being positioned on a side of the second lead layer far from the substrate.
8. The display panel of claim 1, wherein the at least one first inorganic groove and the at least one second inorganic groove are of unitary construction.
9. The display panel of claim 8, wherein the orthographic projection of the unitary structure of the at least one first inorganic groove and the at least one second inorganic groove on the substrate surrounds the orthographic projection of the first organic film layer on the substrate.
10. The display panel of claim 1, wherein the front projection of the first inorganic groove on the substrate covers the front projection of the first set of contact pads on the substrate, and wherein the front projection of the second inorganic groove on the substrate covers the front projection of the second set of contact pads on the substrate.
11. The display panel according to claim 1, wherein the first inorganic film layer has a plurality of first inorganic grooves and a plurality of second inorganic grooves in the first frame region, and a minimum distance between adjacent first inorganic grooves is the same and a minimum distance between adjacent second inorganic grooves is the same in a direction away from the display region.
12. The display panel of claim 1, wherein the orthographic projection of the at least one first inorganic groove on the substrate surrounds the orthographic projection of the first set of contact pads on the substrate, and wherein the orthographic projection of the at least one second inorganic groove on the substrate surrounds the orthographic projection of the second set of contact pads on the substrate.
13. The display panel of claim 1, wherein the first frame region further comprises a second signal access region on a side of the at least one first signal access region remote from the display region; The display panel further comprises a third contact pad group positioned in the second signal access area, wherein the third contact pad group comprises a plurality of third contact pads, and a part of the third contact pads are connected with the second contact pads through a plurality of internal binding lines; The orthographic projection of the at least one second inorganic groove on the substrate surrounds the orthographic projection of the second contact pad group, the third contact pad group and the plurality of internal binding lines on the substrate, or the orthographic projection of the at least one second inorganic groove on the substrate covers the orthographic projection of the second contact pad group, the third contact pad group and the plurality of internal binding lines on the substrate.
14. The display panel of claim 1, wherein a minimum distance between the first inorganic groove and the first contact pad group is different from a minimum distance between the first inorganic groove and the first organic film layer in a direction away from the display region.
15. The display panel of claim 1, wherein a minimum distance between the second inorganic groove and the second contact pad group is different from a minimum distance between the second inorganic groove and the first organic film layer in a direction away from the display region.
16. The display panel of claim 1, wherein the substrate further comprises a second bezel area on a remaining side of the display area; The first inorganic film layer has at least one third inorganic groove extending along an edge of the display panel in the second frame region, the third inorganic groove being adjacent to the edge of the display panel.
17. The display panel of claim 1, wherein the substrate further comprises an open area and a third frame area at least partially surrounding the open area, the display area at least partially surrounding the third frame area, and the first inorganic film layer is provided with at least one fourth inorganic groove surrounding the open area in the third frame area.
18. The display panel of claim 1, further comprising a first touch conductive layer and a second touch conductive layer, wherein the first touch conductive layer is positioned on a side of the plurality of sub-pixels away from the substrate, and the second touch conductive layer is positioned on a side of the first touch conductive layer away from the substrate; The first inorganic film layer comprises at least one of a touch interlayer insulating layer positioned between the first touch conductive layer and the second touch conductive layer and a touch buffer layer positioned on one side of the first touch conductive layer close to the substrate.
19. The display panel of claim 1, wherein the first contact pad comprises a first sub-pad, a second sub-pad, a third sub-pad and a fourth sub-pad which are sequentially stacked, the second contact pad comprises a fifth sub-pad, a sixth sub-pad, a seventh sub-pad and an eighth sub-pad which are sequentially stacked, the fourth sub-pad is in contact with the third sub-pad through a via hole formed in the first inorganic film layer, and the eighth sub-pad is in contact with the seventh sub-pad through a via hole formed in the first inorganic film layer.
20. A display device comprising the display panel according to any one of claims 1 to 19.

Description

Display panel and display device Technical Field The present utility model relates to the field of display technologies, and in particular, to a display panel and a display device. Background Organic LIGHT EMITTING Diode (OLED) and Quantum-dot LIGHT EMITTING Diode (QLED) are active light emitting display devices, and have advantages of self-luminescence, wide viewing angle, high contrast ratio, low power consumption, extremely high reaction speed, thinness, flexibility, low cost, and the like. Disclosure of utility model The following is a summary of the subject matter of the detailed description of the utility model. This summary is not intended to limit the scope of the claims. In order to improve display abnormality caused by high-temperature and high-humidity environment in the reliability test process, the utility model provides a display panel and a display device. In one aspect, the utility model provides a display panel comprising a substrate, a plurality of sub-pixels, a plurality of data lines, a first contact pad group, a second contact pad group, a first organic film layer and a first inorganic film layer. The substrate comprises a display area and a first frame area positioned at one side of the display area, wherein the first frame area comprises at least one first signal access area. A plurality of sub-pixels are located in the display area. The plurality of data lines are positioned in the display area and the first frame area, and the plurality of sub-pixels are connected with the plurality of data lines. The first contact pad group and the second contact pad group are located in the first signal access area, the second contact pad group is located at one side of the first contact pad group away from the display area, the first contact pad group comprises a plurality of first contact pads, the plurality of first contact pads are connected with the plurality of data lines, the second contact pad group comprises a plurality of second contact pads, and the plurality of first contact pads and the plurality of second contact pads are configured to be bound with a driving chip. The first organic film layer is located in the first signal access area, the orthographic projection of the first organic film layer on the substrate does not overlap with the orthographic projections of the first contact pad group and the second contact pad group on the substrate, and the first contact pad group and the second contact pad group are located between the orthographic projections of the first contact pad group and the second contact pad group on the substrate along the direction away from the display area. The first inorganic film layer is positioned on one side of the first organic film layer away from the substrate, and the first inorganic film layer is provided with at least one of at least one first inorganic groove and at least one second inorganic groove in the first frame area. At least a portion of the at least one first inorganic groove is located between the first set of contact pads and the orthographic projection of the first organic film layer on the substrate. At least a portion of the at least one second inorganic groove is located between the second set of contact pads and the orthographic projection of the first organic film layer on the substrate. In some exemplary embodiments, the orthographic projection of the first inorganic film layer on the substrate covers the orthographic projection of the first organic film layer on the substrate. In some exemplary embodiments, the display panel further includes a test unit located at the first signal access region, the test unit being located between the first contact pad group and the second contact pad group in a direction away from the display region, and an orthographic projection of the test unit at the substrate at least partially overlaps an orthographic projection of the first organic film layer at the substrate. In some exemplary embodiments, the test unit includes a plurality of test pins and a plurality of test circuits, the plurality of test pins being located on a side of the plurality of test circuits remote from the first set of contact pads, and an orthographic projection of the first organic film layer on the substrate at least partially overlapping with orthographic projections of the plurality of test pins and the plurality of test circuits on the substrate. In some exemplary embodiments, the first organic film layer includes a first organic bump and a second organic bump, the first organic bump and the second organic bump are arranged in the same layer, the first organic bump and the second organic bump are arranged along an arrangement direction of the plurality of test circuits, an orthographic projection of the first organic bump and the second organic bump on the substrate at least partially overlaps an orthographic projection of the plurality of test circuits on the substrate, and the first organic bump and the second organi