CN218100583U - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN218100583U CN218100583U CN202222421881.7U CN202222421881U CN218100583U CN 218100583 U CN218100583 U CN 218100583U CN 202222421881 U CN202222421881 U CN 202222421881U CN 218100583 U CN218100583 U CN 218100583U
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- adhesive layer
- display panel
- substrate
- control chip
- circuit board
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Abstract
The utility model provides a display panel and display device, display panel includes: a substrate; the first adhesive layer is arranged on the back surface of the substrate; an opening structure is arranged at the first position of the first adhesive layer; the first flexible circuit board comprises a turnover area, and the turnover area is turned to the back side of the substrate; a control chip is packaged on the turnover area, and one side of the control chip, which is far away from the first flexible circuit board, is arranged on the opening structure; and the second flexible circuit board is electrically connected with one side of the turnover area, which is provided with the control chip. The utility model discloses a set up open structure at first glue film to arrange control chip in the open structure, reduced control chip place department and taken up display panel gross thickness compares, has reduced display panel's whole thickness.
Description
Technical Field
The utility model relates to a show technical field, concretely relates to display panel and display device.
Background
The Organic electroluminescent display panel is a display panel manufactured by using an Organic Light-Emitting Diode (OLED). The organic electroluminescent display screen does not need a backlight source, has the excellent performances of thin thickness, high contrast, wide viewing angle, high reaction speed, wide use temperature range, simpler structure and manufacture and the like, and is frequently used in display screens of mobile phones, computers and the like.
With the progress of display technology, people are more pursuing display screens with high screen ratio. COF (Chip On Flex, or, chip On Film) is a technology for fixing an Integrated Circuit (IC) On a flexible circuit board, and then bending the COF to the lower side of a screen, so that the frame of the chin of the display screen can be reduced, and the screen occupation ratio of the display screen is improved. In addition, COF technology has the advantages of low power consumption, low cost, small structure, light weight, high resolution and the like, and is increasingly applied to devices such as mobile phones and computers which seek high screen occupation ratio. Fig. 1 is a schematic diagram of a display panel adopting COF bending technology in the prior art. As shown in fig. 1, the display panel includes: the substrate 10', the first adhesive layer 20', the first flexible circuit board 30', the second flexible circuit board 40', the control chip 50', the second adhesive layer 60', the pad 70 'and the third adhesive layer 80'. The first flexible circuit board 30' includes a folded region 31' and a non-folded region 32', the folded region 31' is folded to the back of the substrate 10', and a control chip 50' is disposed on the folded region 31 '. The display panel in fig. 1 can reduce the lower frame of the display panel by adopting the COF bending technology, but the thickness of the position where the control chip 50' is arranged can be increased, and the total thickness is about 0.5mm (the thickness of the control chip 50' is about 0.3mm, and the thickness of the second adhesive layer 60' is about 0.2 mm), which can increase the overall thickness of the display panel.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, the utility model aims to provide a display panel that whole thickness is thin.
An embodiment of the utility model provides a display panel, include:
a substrate; the first adhesive layer is arranged on the back surface of the substrate; an opening structure is arranged at the first position of the first adhesive layer; the first flexible circuit board comprises a turnover area, and the turnover area is turned to the back side of the substrate; a control chip is packaged on the turnover area, and one side of the control chip, which is far away from the first flexible circuit board, is arranged on the opening structure; and the second flexible circuit board is electrically connected with one side of the turnover area, which is provided with the control chip.
In some embodiments, the substrate includes a display region, and the first flexible circuit board further includes a non-flip region electrically connected to the display region.
In some embodiments, the panel further comprises a second adhesive layer disposed in the opening structure, and the control chip is disposed on a side of the second adhesive layer facing away from the panel.
In some embodiments, the thickness of the first glue layer is 0.1mm to 0.3mm.
In some embodiments, the thickness of the second adhesive layer is 0.1mm to 0.3mm.
In some embodiments, an area of the first cross section of the opening structure parallel to the substrate is larger than an area of the second glue layer parallel to the first cross section of the substrate.
In some embodiments, the first cross section of the opening structure and the first cross section of the second adhesive layer are both quadrilateral structures, and the distance between each side length of the first cross section of the opening structure and each side length opposite to the first cross section of the second adhesive layer is greater than 0.3mm.
In some embodiments, the second flexible circuit board is fixed to a side of the first adhesive layer away from the substrate through a third adhesive layer.
In some embodiments, the adhesive tape further comprises a cushion block, the cushion block is arranged on one side, away from the substrate, of the second adhesive layer, the middle of the cushion block is a through structure, and the control chip is arranged in the through structure.
In some embodiments, the second adhesive layer is a foam double-sided adhesive.
The embodiment of the utility model provides a still provide a display device, including foretell any kind of display panel.
The utility model provides a display panel and display device has following advantage:
the utility model provides a display panel includes: a substrate; the first adhesive layer is arranged on the back surface of the substrate; an opening structure is arranged at the first position of the first adhesive layer; the first flexible circuit board comprises a turnover area, and the turnover area is turned to the back side of the substrate; a control chip is packaged on the turnover area, and one side of the control chip, which is far away from the first flexible circuit board, is arranged on the opening structure; and the second flexible circuit board is electrically connected with one side of the turnover area, which is provided with the control chip. The utility model discloses a set up open structure in gum department to in arranging control chip in open structure, reduced the thickness ratio that sets up control chip place and account for display panel's gross thickness, reduced display panel's whole thickness.
Drawings
Other features, objects and advantages of the invention will become more apparent from a reading of the following detailed description of non-limiting embodiments thereof, with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a display panel in the prior art;
fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
fig. 3 is a schematic view of an opening structure according to an embodiment of the present invention.
Reference numerals:
10. substrate board
20. First adhesive layer
21. Opening structure
30. First flexible circuit board
31. Folding zone
32. Non-folding zone
40. Second flexible circuit board
50. Control chip
60. Second adhesive layer
70. Cushion block
80. Third adhesive layer
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted. In the specification, "or" may mean "and" or ".
Fig. 2 is a schematic structural diagram of a display panel according to an embodiment of the present invention; fig. 3 is a schematic view of an opening structure provided in an embodiment of the present invention. As shown in fig. 2 and 3, an embodiment of the present invention provides a display panel, including: the flexible printed circuit board comprises a substrate 10, a first glue layer 20, a first flexible printed circuit board 30 and a second flexible printed circuit board 40.
The substrate 10 may be a flexible substrate or a glass substrate. The first adhesive layer 20 is disposed on the back surface of the substrate 10, an opening structure 21 is disposed at a first position of the first adhesive layer 20, and the first adhesive layer 20 is a double-sided adhesive tape. Preferably, the thickness of the first adhesive layer is 0.1mm to 0.3mm.
The first flexible circuit board 30 includes a folding area 31, and the folding area 31 is folded to the back side of the substrate 10; since the display panel adopts COF technology, the flip area 31 is packaged with the control chip 50, that is, the pin end of the control chip 50 is packaged on the flip area 31. The control chip is a driving chip and is used for driving the display of the display area of the display panel. Further, a side of the control chip 50 facing away from the first flexible circuit board 30 is disposed on the opening structure 21. The control chip is fixedly arranged in the opening structure of the first adhesive layer, and the first adhesive layer is not arranged in the opening structure, so that the thickness of the control chip is reduced, the thickness ratio of the chip to the total thickness of the display panel is reduced, and the overall thickness of the display panel is reduced; when the display panel is packaged into a display device, the thickness of the display device can be reduced, and a screen with a thin body and a high screen occupation ratio can be manufactured conveniently.
Further, a first end of the second flexible circuit board 40 is electrically connected to one side of the folding region 31 where the control chip 50 is disposed, a second end of the second flexible circuit board 40 is connected to an external power source, and the second flexible circuit board 40 is configured to provide a signal to the control chip 50. The front surface of the substrate 10 includes a display area for displaying information such as images or characters. The first flexible circuit board 30 further includes a non-flip area 32, and the non-flip area 32 is electrically connected to the display area. The control chip 50 is connected to the substrate 10 and the second flexible circuit board 40 through the first flexible circuit board 30; when in use, the control signal output by the second flexible circuit board 40 is output to the display area through the control chip 50, so as to drive the display area of the substrate 10 to display corresponding content.
Preferably, the display panel further includes a second adhesive layer 60 disposed in the opening structure 21, the control chip 50 is disposed on a side of the second adhesive layer 60 away from the substrate 10, and the second adhesive layer 60 is used to fix the control chip 50 to the back of the substrate 10. Preferably, the thickness of the second adhesive layer 60 is 0.1mm to 0.3mm. The second adhesive layer 60 may be a foam double-sided adhesive tape, which can protect and fix the control chip to prevent the chip from being damaged and causing abnormal functions.
The area of the first cross section of the opening structure 21 parallel to the substrate 10 is larger than the area of the second adhesive layer 60 parallel to the first cross section of the substrate 10, so that the second adhesive layer 60 is completely disposed in the opening structure 21, and the thickness of the display panel where the control chip 50 is located is not reduced. As shown in fig. 3, in this embodiment, the first cross section of the opening structure 21 and the first cross section of the second adhesive layer 60 are both quadrilateral structures, and preferably, each side length of the first cross section of the opening structure 21 is greater than 0.3mm from each side length of the first cross section of the second adhesive layer 60 opposite to each other. The control chip is ensured to be fixed on the back surface of the substrate without the first adhesive layer, so that the thickness ratio of the position of the control chip to the total thickness of the display panel is reduced, and the overall thickness of the display panel is reduced.
The second flexible circuit board 40 is fixed to a side of the first adhesive layer 20 away from the substrate 10 through a third adhesive layer 80, so that the second flexible circuit board 40 is fixed to the back surface of the substrate 10. The third adhesive layer 80 may be a double-sided adhesive.
Preferably, the display panel further includes a pad block 70 disposed on a side of the second adhesive layer 60 away from the substrate 10, a middle portion of the pad block 70 is a through structure, and the control chip 50 is disposed in the through structure. The spacer 70 is used to further protect the control chip 50 from being damaged by external force or falling off from the back of the substrate. The material of the pad 70 may be a PET (Polyethylene terephthalate) material, but is not limited thereto.
The embodiment of the utility model provides a display device is still provided, including foretell any kind of display panel. The display device can be widely applied display devices such as a computer display, a mobile phone, a tablet personal computer, an electronic photo album and the like. The thickness of the display panel of the display device is thinner, so that the thickness of the display device is reduced, and the display panel is light and thin, so that the display device is also lighter and thinner.
To sum up, the utility model provides a display panel and display device has following advantage:
the utility model provides a display panel includes: a substrate; the first adhesive layer is arranged on the back surface of the substrate; an opening structure is arranged at the first position of the first adhesive layer; the first flexible circuit board comprises a turnover area, and the turnover area is turned to the back side of the substrate; a control chip is packaged on the turnover area, and one side of the control chip, which is far away from the first flexible circuit board, is arranged on the opening structure; and the second flexible circuit board is electrically connected with one side of the turnover area, which is provided with the control chip. Through set up open structure on first glue film, set up control chip in the open structure, no first glue film in the open structure, therefore reduced and set up control chip department and occupy the thickness ratio of display panel gross thickness, reduced display panel's whole thickness, when display panel sets up in display device, can reduce display device's thickness.
The foregoing is a more detailed description of the present invention, taken in conjunction with specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments thereof. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (11)
1. A display panel, comprising:
a substrate;
the first adhesive layer is arranged on the back surface of the substrate; an opening structure is arranged at the first position of the first adhesive layer;
the first flexible circuit board comprises a turnover area, and the turnover area is turned to the back side of the substrate; a control chip is packaged on the turnover area, and one side of the control chip, which is far away from the first flexible circuit board, is arranged on the opening structure;
and the second flexible circuit board is electrically connected with one side of the turnover area, which is provided with the control chip.
2. The display panel according to claim 1, wherein the substrate includes a display region, and the first flexible circuit board further includes a non-flip region electrically connected to the display region.
3. The display panel according to claim 1, further comprising a second adhesive layer disposed in the opening structure, wherein the control chip is disposed on a side of the second adhesive layer facing away from the panel.
4. The display panel according to claim 1, wherein the thickness of the first adhesive layer is 0.1mm to 0.3mm.
5. The display panel according to claim 3, wherein the thickness of the second adhesive layer is 0.1mm to 0.3mm.
6. The display panel according to claim 5, wherein an area of a first cross section of the opening structure parallel to the substrate is larger than an area of a first cross section of the second adhesive layer parallel to the substrate.
7. The display panel according to claim 6, wherein the first cross section of the opening structure and the first cross section of the second adhesive layer are both quadrilateral structures, and each side length of the first cross section of the opening structure is greater than 0.3mm from each side length opposite to the first cross section of the second adhesive layer.
8. The display panel according to claim 1, wherein the second flexible circuit board is fixed to a side of the first adhesive layer facing away from the substrate through a third adhesive layer.
9. The display panel of claim 3, further comprising a pad disposed on a side of the second adhesive layer facing away from the substrate, wherein a through structure is disposed in a middle portion of the pad, and the control chip is disposed in the through structure.
10. The display panel according to claim 3, wherein the second adhesive layer is a foam double-sided adhesive.
11. A display device characterized by comprising the display panel according to any one of claims 1 to 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222421881.7U CN218100583U (en) | 2022-09-13 | 2022-09-13 | Display panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222421881.7U CN218100583U (en) | 2022-09-13 | 2022-09-13 | Display panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218100583U true CN218100583U (en) | 2022-12-20 |
Family
ID=84450794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222421881.7U Active CN218100583U (en) | 2022-09-13 | 2022-09-13 | Display panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218100583U (en) |
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2022
- 2022-09-13 CN CN202222421881.7U patent/CN218100583U/en active Active
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