CN109947297B - Flexible touch display panel - Google Patents
Flexible touch display panel Download PDFInfo
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- CN109947297B CN109947297B CN201910229072.6A CN201910229072A CN109947297B CN 109947297 B CN109947297 B CN 109947297B CN 201910229072 A CN201910229072 A CN 201910229072A CN 109947297 B CN109947297 B CN 109947297B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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Abstract
The invention provides a flexible touch display panel, which comprises a flexible panel and a touch function film layer, wherein a circuit binding part of the flexible panel is bent at the back of a display main body part of the flexible panel, the touch function film layer is attached on the display main body part, a touch flexible circuit board is arranged at one side of the touch function film layer, which is close to the circuit binding part, the touch flexible circuit board comprises a first connecting part, a second connecting part and a bending part, the second connecting part is bent through the bending part and is arranged at the back of the display main body part, the circuit binding part is provided with an opening corresponding to the bending part, the bending part is embedded into the opening, the invention sets an opening at the bending part of the circuit binding part, the circuit binding part reserves an accommodating space after bending, and the bending part of the touch flexible circuit board is bent in the accommodating space, therefore, the width of the touch flexible circuit board occupied at the edge of the display panel is not increased, and the narrow frame design is favorably realized.
Description
Technical Field
The invention relates to the technical field of display, in particular to a flexible touch display panel.
Background
Among flat panel display technologies, an Organic light Emitting Diode (O L ED) display has excellent characteristics of being light and thin, actively Emitting light, having a fast response speed, a large viewing angle, a wide color gamut, high luminance, low power consumption, and being capable of manufacturing a flexible screen, etc., and has attracted great interest in the scientific research and industrial fields, and has gradually become a third generation display technology following a liquid crystal display (83 liquid crystal display, L CD).
In addition, with the development of portable electronic display devices, Touch panels (Touch panels) provide a new human-computer interaction interface, which is more direct and humanized in use. The touch screen and the flat panel display device are integrated together to form the touch display device, so that the flat panel display device has a touch function, can perform input through fingers, a touch pen and the like, and is more visual and simple to operate.
In the development of the conventional O L ED Touch display screen, an externally-hanging Touch technology in which a Touch sensor (Touch sensor) is fabricated on an O L ED layer is generally adopted, and specifically, the process includes fabricating a TFT layer including a substrate, fabricating an O L ED layer on the TFT layer, fabricating an encapsulation layer on the O L ED layer, and finally attaching a Touch functional layer to the encapsulation layer through an adhesive layer.
With the gradual maturity of the manufacturing technology of the flexible O L ED display screen, more and more mobile phones with full-screen design (the screen occupation ratio is greater than or equal to 83%) appear in the market, and in order to achieve the purpose of high screen occupation ratio, the design of the mobile phone with full-screen design needs to reduce the widths of four frames of the display screen of the mobile phone as much as possible.
An O L ED display panel generally adopts a circuit binding method of an external Flexible driving Circuit (COP), as shown in fig. 1, an O L ED panel adopting a conventional COF binding (bending) structure, a COF1 is bound with a Flexible substrate 2 and then bent On the back of the Flexible substrate 2, and because a part occupied by a binding region (binding Pad) bound with the Flexible substrate 2 On a COF1 cannot be bent to the back of the Flexible substrate 2, the conventional COF binding structure cannot meet the design requirement of reducing a frame, as shown in fig. 2, the Pad binding structure exerts excellent bending performance of a Polyimide (PI) material substrate in the Flexible substrate 2, the problem that the narrow frame design cannot be realized in the COF binding structure is solved technically, as shown in fig. 2, the O L ED panel adopting the Pad binding structure, the binding region of the Flexible substrate 2 is bent On the back of a display region of the Flexible substrate 2, and the Flexible substrate 2 is bound with the binding region of a COF1 On the back of the Flexible substrate, and the Flexible substrate 2 is favorable for realizing the O L ED Flexible substrate bonding region of the Flexible substrate, and the Flexible substrate, which is favorable for realizing the Flexible display region of the Flexible substrate 1.
However, in terms of material and structural design, the externally-hung Touch sensor cannot be bent as a flexible substrate made of PI material due to the relationship of the base material, which results in that the Bonding pad of the Touch flexible circuit board (Touch FPC) cannot be bent to the back of the display screen. As shown in fig. 3, in the conventional flexible touch display panel adopting the Pad bonding structure, the bonding region of the flexible substrate 2 is bent at the back of the display region of the flexible substrate 2 and is bonded with the bonding region of the main COF3 at the back of the display region of the flexible substrate 2, the touch functional film layer 4 is attached to the flexible substrate 2, and the touch FPC5 is bonded with the touch functional film layer 4 and then bent at the back of the flexible substrate 2, however, as can be seen from fig. 3, the bending radius of the touch FPC5 is large, and such a design rather makes the size of the lower frame of the display screen larger.
Disclosure of Invention
The invention aims to provide a flexible touch display panel, wherein the bending part of a touch flexible circuit board is hidden in an opening of the flexible panel, so that the size of a frame of the display panel is not increased, and the narrow frame design is favorably realized.
In order to achieve the above object, the present invention provides a flexible touch display panel, which includes a flexible panel and a touch functional film layer attached to the flexible panel;
the flexible panel comprises a display main body part and a circuit binding part connected with the display main body part;
the circuit binding part is bent backwards from the edge of the display main body part and is arranged on the back of the display main body part;
the touch control function film layer is attached to the display main body part, and a touch control flexible circuit board is arranged on one side, close to the circuit binding part, of the touch control function film layer;
the touch flexible circuit board comprises a first connecting part connected with the touch functional film layer, a second connecting part opposite to the first connecting part and a bending part positioned between the first connecting part and the second connecting part;
the second connecting part is arranged on the back of the display main body part through the bending of the bending part;
the circuit binding portion is provided with an opening corresponding to the bending portion of the touch flexible circuit board, and the bending portion is embedded into the opening.
The width of the opening is the same as that of the bending part.
The first connecting part of the touch flexible circuit board is bound and connected with the touch functional film layer.
The flexible touch display panel further comprises a main flexible circuit board which is arranged on the back of the display main body part and is connected with the circuit binding part in a binding mode.
And the second connecting part of the touch flexible circuit board is bound and connected with the main flexible circuit board on the back of the display main body part.
The display main body part and the circuit binding part of the flexible panel are arranged on the same flexible substrate.
The flexible substrate is a polyimide substrate.
The display main body part comprises a TFT array layer arranged on the flexible substrate and an O L ED display layer arranged on the TFT array layer.
The touch control function film layer is attached to the flexible panel through the adhesive layer.
The adhesive layer is an optical transparent adhesive layer.
The invention has the beneficial effects that: the invention provides a flexible touch display panel, which comprises a flexible panel and a touch function film layer, wherein a circuit binding part of the flexible panel is bent at the back of a display main body part of the flexible panel, the touch function film layer is attached on the display main body part, a touch flexible circuit board is arranged at one side of the touch function film layer, which is close to the circuit binding part, the touch flexible circuit board comprises a first connecting part, a second connecting part and a bending part, the second connecting part is bent through the bending part and is arranged at the back of the display main body part, the circuit binding part is provided with an opening corresponding to the bending part, the bending part is embedded into the opening, the invention sets an opening at the bending part of the circuit binding part, which is corresponding to the touch flexible circuit board, an accommodating space is reserved after the circuit binding part is bent, and the bending part of the, therefore, the width of the touch flexible circuit board occupied at the edge of the display panel is not increased, and the narrow frame design is favorably realized.
For a better understanding of the nature and technical aspects of the present invention, reference should be made to the following detailed description of the invention, taken in conjunction with the accompanying drawings, which are provided for purposes of illustration and description and are not intended to limit the invention.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
In the drawings, there is shown in the drawings,
FIG. 1 is a schematic side view of a conventional O L ED panel with COF bonding structure;
FIG. 2 is a schematic side view of a prior art O L ED panel using a Pad bonding structure;
fig. 3 is a schematic side view of a conventional flexible touch display panel adopting a Pad bonding structure;
fig. 4 is a schematic perspective view of a flexible panel of the flexible touch display panel according to the present invention when the circuit binding portion is unfolded;
fig. 5 is a schematic perspective view of a flexible substrate of the flexible touch display panel according to the present invention when a circuit binding portion is bent at a back surface of a display main body portion;
fig. 6 is a schematic three-dimensional structure diagram of the touch functional film layer and the touch flexible circuit board of the flexible touch display panel according to the present invention;
FIG. 7 is a schematic side view of a flexible touch display panel at a bending position of a flexible panel according to the present invention;
fig. 8 is a schematic perspective view of a flexible touch display panel according to the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.
Referring to fig. 8, the present invention provides a flexible touch display panel, which includes a flexible panel 10 and a touch functional film layer 20 attached to the flexible panel 10 by an adhesive layer (not shown).
Specifically, the flexible panel 10 includes a display main body portion 11 and a circuit binding portion 12 connected to the display main body portion 11; the circuit binding portion 12 is bent backward from the edge of the display main body portion 11 and is provided on the back surface of the display main body portion 11.
Specifically, the touch function film layer 20 is attached to the display main body portion 11, and a touch flexible circuit board 25 is disposed on one side of the touch function film layer 20, which is close to the circuit binding portion 12.
Specifically, the touch flexible circuit board 25 includes a first connection portion 26 connected to the touch functional film layer 20, a second connection portion 27 opposite to the first connection portion 26, and a bending portion 28 located between the first connection portion 26 and the second connection portion 27.
Specifically, the second connection portion 27 is provided on the rear surface of the display main body portion 11 by being bent by the bent portion 28.
Specifically, as shown in fig. 4, the circuit binding portion 12 is provided with an opening 13 corresponding to the bending portion 28 of the touch flexible circuit board 25, so as to be shown in fig. 5, the circuit binding portion 12 forms an accommodating space by the opening 13 after being bent, as shown in fig. 7, the bending portion 28 of the touch flexible circuit board 25 is embedded into the opening 13, and the bending portion 25 is bent in the accommodating space, so that after the touch flexible circuit board 25 is bent, the surface of the bending portion 25 is flush with the surface of the circuit binding portion 12 of the flexible panel 10, or is recessed in the opening 13, that is, the bending portion 28 of the touch flexible circuit board 25 is hidden in the opening 13 of the circuit binding portion 12, so as not to increase the frame size of the display panel, thereby facilitating the implementation of narrow frame design.
Specifically, the width of the opening 13 is the same as the width of the bending portion 28.
Specifically, the first connection portion 26 of the touch flexible circuit board 25 is bound and connected with the touch functional film layer 20.
Specifically, the flexible touch display panel further includes a main flexible circuit board 50 bound and connected to the circuit binding portion 12 at the back of the display main body portion 11.
Specifically, the second connection portion 27 of the touch flexible circuit board 25 is bound and connected to the main flexible circuit board 50 at the back of the display main body portion 11.
Specifically, the display main body portion 11 and the circuit binding portion 12 of the flexible panel 10 are provided on the same flexible substrate (not shown).
Specifically, the flexible substrate is a polyimide substrate.
Specifically, the flexible panel 10 is a flexible O L ED display panel, and the display main body 11 includes a TFT array layer disposed on the flexible substrate and an O L ED display layer (not shown) disposed on the TFT array layer.
Specifically, the flexible panel 10 further includes a film encapsulation layer (not shown) disposed on the flexible substrate, the TFT array layer and the O L ED display layer, and the touch function film layer 20 is attached to the film encapsulation layer through an adhesive layer.
Specifically, the adhesive layer is an optical transparent adhesive layer.
According to the flexible touch display panel, the opening 13 is formed in the circuit binding portion 12 of the flexible panel 10 corresponding to the bending portion 28 of the touch flexible circuit board 25, an accommodating space is reserved in the opening 13 after the circuit binding portion 12 is bent, and the bending portion 28 of the touch flexible circuit board 25 is embedded into the opening 13 and bent in the accommodating space, so that the width of the touch flexible circuit board 25 occupied at the edge of the display panel is not increased, and the implementation of narrow-frame design is facilitated.
In summary, the flexible touch display panel provided by the present invention includes a flexible panel and a touch function film layer, wherein a circuit bonding portion of the flexible panel is bent at a back surface of a display main body portion of the flexible panel, the touch function film layer is attached to the display main body portion, a touch flexible circuit board is disposed at a side of the touch function film layer close to the circuit bonding portion, the touch flexible circuit board includes a first connecting portion, a second connecting portion and a bending portion, the second connecting portion is bent by the bending portion and disposed at the back surface of the display main body portion, the circuit bonding portion has an opening corresponding to the bending portion, the bending portion is embedded in the opening, the flexible touch circuit board is provided with an opening corresponding to the bending portion of the touch flexible circuit board, the circuit bonding portion reserves an accommodating space after bending, and the bending portion of the touch flexible circuit board is bent in the accommodating, therefore, the width of the touch flexible circuit board occupied at the edge of the display panel is not increased, and the narrow frame design is favorably realized.
As described above, it will be apparent to those skilled in the art that other various changes and modifications may be made based on the technical solution and concept of the present invention, and all such changes and modifications are intended to fall within the scope of the appended claims.
Claims (10)
1. The flexible touch display panel is characterized by comprising a flexible panel (10) and a touch function film layer (20) attached to the flexible panel (10);
the flexible panel (10) comprises a display main body part (11) and a circuit binding part (12) connected with the display main body part (11);
the circuit binding part (12) is bent backwards from the edge of the display main body part (11) and is arranged on the back of the display main body part (11);
the touch function film layer (20) is attached to the display main body part (11), and a touch flexible circuit board (25) is arranged on one side, close to the circuit binding part (12), of the touch function film layer (20);
the touch flexible circuit board (25) comprises a first connecting part (26) connected with the touch functional film layer (20), a second connecting part (27) opposite to the first connecting part (26), and a bending part (28) positioned between the first connecting part (26) and the second connecting part (27);
the second connecting portion (27) is provided on the rear surface of the display main body portion (11) by bending of the bent portion (28);
the circuit binding portion (12) is provided with an opening (13) corresponding to a bending portion (28) of the touch flexible circuit board (25), and the bending portion (28) is embedded into the opening (13).
2. The flexible touch display panel according to claim 1, wherein the width of the opening (13) is the same as the width of the bending portion (28).
3. The flexible touch display panel according to claim 1, wherein the first connection portion (26) of the touch flexible circuit board (25) is connected to the touch functional film layer (20) in a binding manner.
4. The flexible touch display panel according to claim 1, further comprising a main flexible circuit board (50) bound and connected to the circuit binding portion (12) at a back surface of the display main body portion (11).
5. The flexible touch display panel according to claim 4, wherein the second connection portion (27) of the touch flexible circuit board (25) is bonded to the main flexible circuit board (50) at the back of the display main body portion (11).
6. The flexible touch display panel according to claim 1, wherein the display main body portion (11) and the circuit binding portion (12) of the flexible panel (10) are provided on the same flexible substrate.
7. The flexible touch display panel of claim 6, wherein the flexible substrate is a polyimide substrate.
8. The flexible touch display panel of claim 6, wherein the display body portion (11) comprises a TFT array layer disposed on the flexible substrate and an O L ED display layer disposed on the TFT array layer.
9. The flexible touch display panel according to claim 1, wherein the touch functional film layer (20) is attached to the flexible panel (10) by an adhesive layer.
10. The flexible touch display panel of claim 9, wherein the adhesive layer is an optically transparent adhesive layer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229072.6A CN109947297B (en) | 2019-03-25 | 2019-03-25 | Flexible touch display panel |
| PCT/CN2019/087498 WO2020191905A1 (en) | 2019-03-25 | 2019-05-17 | Flexible touch-control display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910229072.6A CN109947297B (en) | 2019-03-25 | 2019-03-25 | Flexible touch display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109947297A CN109947297A (en) | 2019-06-28 |
| CN109947297B true CN109947297B (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910229072.6A Active CN109947297B (en) | 2019-03-25 | 2019-03-25 | Flexible touch display panel |
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| Country | Link |
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| CN (1) | CN109947297B (en) |
| WO (1) | WO2020191905A1 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110379834A (en) * | 2019-07-11 | 2019-10-25 | 昆山国显光电有限公司 | Display panel and display device |
| CN110794988B (en) * | 2019-10-22 | 2021-12-03 | 维沃移动通信有限公司 | Display module assembly and electronic equipment |
| CN110751909B (en) * | 2019-10-31 | 2022-03-22 | 云谷（固安）科技有限公司 | Display panel and display device |
| US12063826B2 (en) * | 2020-08-27 | 2024-08-13 | Chengdu Boe Optoelectronics Technology Co., Ltd. | Display device and electronic apparatus |
| CN112905057B (en) * | 2021-03-15 | 2023-03-31 | 西安易朴通讯技术有限公司 | Display device and display terminal |
| CN113363297B (en) * | 2021-05-31 | 2023-02-03 | 深圳市华星光电半导体显示技术有限公司 | Display panel, assembling method thereof and splicing display device |
| WO2023019534A1 (en) * | 2021-08-19 | 2023-02-23 | 广东高驰运动科技有限公司 | Combination structure for touch device and wearable device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383555A (en) * | 2016-10-20 | 2017-02-08 | 成都京东方光电科技有限公司 | Flexible display panel, manufacturing method of flexible display panel, and display device |
| CN108052233B (en) * | 2018-01-03 | 2021-03-19 | 上海天马微电子有限公司 | Display panel and display device |
| CN108803164B (en) * | 2018-05-31 | 2021-05-14 | 厦门天马微电子有限公司 | Display device |
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2019
- 2019-03-25 CN CN201910229072.6A patent/CN109947297B/en active Active
- 2019-05-17 WO PCT/CN2019/087498 patent/WO2020191905A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2020191905A1 (en) | 2020-10-01 |
| CN109947297A (en) | 2019-06-28 |
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