CN106201104B - Touch display device and touch display equipment - Google Patents
Touch display device and touch display equipment Download PDFInfo
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- CN106201104B CN106201104B CN201610594357.6A CN201610594357A CN106201104B CN 106201104 B CN106201104 B CN 106201104B CN 201610594357 A CN201610594357 A CN 201610594357A CN 106201104 B CN106201104 B CN 106201104B
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04102—Flexible digitiser, i.e. constructional details for allowing the whole digitising part of a device to be flexed or rolled like a sheet of paper
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- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a touch display device and touch display equipment. The touch display device comprises a flexible substrate; an organic light emitting layer disposed on the flexible substrate; the sealing layer is arranged on one side, away from the flexible substrate, of the organic light emitting layer; the touch electrode layer is arranged on one side, away from the organic light emitting layer, of the sealing layer; and the liquid protection layer is arranged between the sealing layer and the touch electrode layer. According to the technical scheme provided by the embodiment of the invention, when the touch display device is bent, the liquid body can flow to the part with the relatively lower position in the liquid protection layer, so that the thickness of the part with the relatively lower position in the liquid protection layer is larger than that of the part with the relatively higher position, the bending radian of the touch electrode layer or the organic light emitting layer far away from the bending center is further reduced, and the beneficial effects of relieving stress borne by the touch electrode layer or the organic light emitting layer and reducing the damage rate of a device are achieved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a touch display device and touch display equipment.
Background
The touch display device realizes integration of a touch function and a display function, greatly facilitates user operation, improves user experience, and gradually becomes a preferred display device for various electronic products.
The organic touch display device is formed by adding a touch structure in the organic light emitting display device, and has the excellent performances of the organic light emitting display device, namely self-luminescence, simple structure, ultra-light weight, high response speed and the like. The touch structure includes a touch electrode layer disposed in a film layer structure of the organic touch display device, and is usually formed of an inorganic material and belongs to an inorganic film layer. In addition, the organic touch display device further comprises an organic light emitting layer, wherein the organic light emitting layer is composed of a switch device layer and a light emitting diode layer arranged on the switch device layer, and the switch device layer comprises a plurality of metal inorganic film layers.
A plurality of other film layer structures are arranged between the touch electrode layer and the switch device layer, so that the touch electrode layer and the switch device layer are far away from each other. For the flexible organic touch display device, when the flexible organic touch display device is bent, the surface of any one of the touch electrode layer and the device switch layer is used as a neutral surface, and the other layer can be seriously stressed.
Disclosure of Invention
The invention provides a touch display device and touch display equipment, which are used for relieving stress on a touch electrode layer or an organic light emitting layer when a flexible organic touch display device is bent and reducing the damage probability of devices.
In a first aspect, an embodiment of the present invention provides a touch display device, where the touch display device includes:
a flexible substrate;
an organic light emitting layer disposed on the flexible substrate;
the sealing layer is arranged on one side, away from the flexible substrate, of the organic light emitting layer;
the touch electrode layer is arranged on one side, away from the organic light emitting layer, of the sealing layer;
and the liquid protection layer is arranged between the sealing layer and the touch electrode layer.
In a second aspect, the present invention further provides a touch display device, where the touch display device includes the touch display device according to any embodiment of the present invention.
According to the technical scheme provided by the embodiment of the invention, the liquid protection layer is arranged between the touch electrode layer and the sealing layer in the touch display device, so that when the touch display device is bent, the liquid body can flow to the part with the relatively lower position in the liquid protection layer, the thickness of the part with the relatively lower position in the liquid protection layer is larger than that of the part with the relatively higher position in the liquid protection layer, the bending radian of the touch electrode layer or the organic light emitting layer far away from the bending center is further reduced, and the beneficial effects of relieving stress on the touch electrode layer or the organic light emitting layer and reducing the damage rate of devices are achieved.
Drawings
In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, a brief description is given below of the drawings used in describing the embodiments. It should be clear that the described figures are only views of some of the embodiments of the invention to be described, not all, and that for a person skilled in the art, other figures can be derived from these figures without inventive effort.
Fig. 1a is a schematic side view of a touch display device according to an embodiment of the present invention;
FIG. 1b is a schematic cross-sectional view taken along the dashed line AB of FIG. 1 a;
fig. 1c is a schematic side view of another touch display device according to an embodiment of the invention;
FIG. 1d is a schematic structural diagram of the touch display device of FIG. 1a after bending;
fig. 2a is a schematic side view of another touch display device according to an embodiment of the present invention;
fig. 2b is a schematic side view of another touch display device according to an embodiment of the present invention;
fig. 3a is a schematic side view of another touch display device according to an embodiment of the present invention;
fig. 3b is a schematic side view of another touch display device according to an embodiment of the invention;
fig. 3c is a schematic side view of another touch display device according to an embodiment of the invention;
fig. 4 is a schematic side view of another touch display device according to an embodiment of the invention;
fig. 5a is a schematic side view of another touch display device according to an embodiment of the present invention;
fig. 5b is a schematic side view of another touch display device according to an embodiment of the invention;
fig. 5c is a schematic side view of another touch display device according to an embodiment of the invention;
fig. 6 is a schematic structural diagram of a touch display device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be fully described by the detailed description with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are a part of the embodiments of the present invention, not all embodiments, and all other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without inventive efforts fall within the scope of the present invention.
Fig. 1a is a schematic side view of a touch display device according to an embodiment of the present invention. As shown in fig. 1a, the touch display device 100 includes a flexible substrate 110, an organic light emitting layer 120 disposed on the flexible substrate 110, a sealing layer 130 disposed on a side of the organic light emitting layer 120 away from the flexible substrate 110, a touch electrode layer 150 disposed on a side of the sealing layer 130 away from the organic light emitting layer 120, a liquid protection layer 140, and the liquid protection layer 140 disposed between the sealing layer 130 and the touch electrode layer 150.
It should be noted that the sealing layer 130 is used for sealing the organic light emitting layer 120 and needs to be directly contacted with the organic light emitting layer 120, and in addition, in the embodiment, the touch electrode layer 150 is disposed on a side of the organic light emitting layer 120 away from the flexible substrate 110, so that the liquid protection layer 140 for relieving stress of the touch electrode layer 150 and the organic light emitting layer 120 is disposed between the sealing layer 130 and the touch electrode layer 150.
According to the technical scheme provided by the embodiment, the liquid protection layer 140 is arranged between the touch electrode layer 150 and the sealing layer 130 in the touch display device 100, so that when the touch display device 100 is bent, the liquid body can flow to the part with the relatively lower position in the liquid protection layer 120, and the thickness of the part with the relatively lower position in the liquid protection layer 120 is larger than that of the part with the relatively higher position, thereby reducing the bending radian of the touch electrode layer 150 or the organic light emitting layer 120 far away from the bending center, and achieving the beneficial effects of relieving the stress on the touch electrode layer 150 or the organic light emitting layer 120 and reducing the damage rate of devices.
FIG. 1b is a schematic cross-sectional view taken along the dashed line AB in FIG. 1 a. As shown in fig. 1b, the liquid protection layer 140 may include a liquid body 141 and a defining frame 142 surrounding the liquid body 141. It should be noted that the liquid body 141 has fluidity, and therefore the liquid body 141 is limited to a specific region by the limiting frame 142. It should be further noted that, in the present embodiment, the size and the arrangement position of the limiting frame 142 are not specifically limited, and the edge of the limiting frame 142 may be flush with the outer surface of the flexible substrate 110 (as shown in fig. 1 a), or may be inside the flexible substrate 110 (as shown in fig. 1 c). In the former case, the size of the frame 142 is defined to be equal to the size of the flexible substrate 110, and in the latter case, the size of the frame 142 is defined to be smaller than the size of the flexible substrate 110.
Alternatively, the liquid body 141 is formed of a transparent material. So that the display performance of the touch display device 100 is not affected by the liquid protection layer 140. Illustratively, the liquid body 141 may be any one of a long-chain hydrocarbon-based polymer, polybutene, polyisobutylene, silicone oil, liquid synthetic rubber, and liquid paraffin.
In fig. 1a, the organic light emitting layer 120 includes a switching device layer 122 and a light emitting diode layer 121 disposed on the switching device layer 122.
It should be noted that the switching device layer 122 includes a plurality of switching devices, each of which is disposed corresponding to one pixel unit and is used for being turned on or off under the action of a driving signal to control the display of the corresponding pixel unit. Illustratively, the switching device is typically a thin film transistor, and the switching device layer 122 includes a plurality of thin film transistors arranged in an array. It should be noted that the thin film transistor in the switching device layer 122 and the scan line or the data line for transmitting the driving signal to the thin film transistor are usually formed by using metal materials, and therefore, the gate electrode, the source electrode, the drain electrode and the semiconductor layer of the thin film transistor, and the scan line and the data line are all inorganic film layers and have small thicknesses, which results in small stress that can be borne. Similarly, the touch electrode layer 150 is also an inorganic film layer with a small thickness, so that the touch electrode layer can bear a small stress. In actual use, as a part of the flexible touch display device 100, the touch electrode layer 150 and the switching device layer 122 are inevitably bent when a user bends the touch display device 100.
Fig. 1d is a schematic structural diagram of the touch display device in fig. 1a after bending. As shown in fig. 1d, the left and right sides of the touch display device 100 are lower than the middle position after bending, and at this time, the liquid body in the liquid protection layer 140 has fluidity and flows to the left and right sides with the lower position, specifically, the flowing direction of the liquid body is shown by the arrow in fig. 1d, and in this embodiment, the limiting frame of the liquid protection layer 140 is formed by an elastic material, so that the thickness of each part of the liquid protection layer 140 can be correspondingly adjusted according to the distribution of the liquid body. As shown in fig. 1d, the left and right sides of the bent liquid protection layer 140 are thicker and the middle is thinner, the bending center in the bending manner shown in fig. 1d is located at the lower side of the flexible substrate 110, and after the structure of the liquid protection layer 140 changes along with the bending condition, the bending radian of the touch electrode layer 150 far away from the bending center is reduced, so that compared with the case without the liquid protection layer 140, when the touch display device 100 is bent to the same degree, the stress applied to the touch electrode layer 150 is reduced, and the damage probability of the touch electrode layer 150 is reduced. For example, the curved surface of the organic light emitting layer 120 in fig. 1d, which is located on the side close to the flexible substrate 110, is a neutral surface, and since the absolute stress borne by the touch electrode layer 150 is reduced under the action of the liquid protective layer 140, the stress value of the touch electrode layer 150 relative to the neutral surface is also correspondingly reduced. It should be noted that, in other bending modes, the liquid protection layer 140 can also play a role in relieving the stress applied to the organic light emitting layer 120, and the specific relieving principle is the same as the above-mentioned one, and is not described herein again.
In fig. 1a, the sealing layer 130 may be a laminated structure formed of at least one organic layer and at least one inorganic layer, wherein the laminated structure may be two, three or more layers. The sealing layer 130 formed by the stacked structure has a better sealing effect, and can effectively isolate water and air, thereby being beneficial to prolonging the service life of the light emitting diode and maintaining the good performance of the touch display device 100.
Fig. 2a is a schematic side view of another touch display device according to an embodiment of the present invention. As shown in fig. 2a, the touch display device 200 includes a flexible substrate 210, an organic light emitting layer 220 disposed on the flexible substrate 210, a sealing layer 230 disposed on a side of the organic light emitting layer 220 facing away from the flexible substrate 210, a touch electrode layer 250 disposed on a side of the sealing layer 230 facing away from the organic light emitting layer 220, and a liquid protection layer 240. In addition, the touch display device 200 further includes a barrier layer 260 and a polarizer 270. The barrier layer 260 is disposed on a side of the sealing layer 230 away from the organic light emitting layer 220, and the touch electrode layer 250 is disposed on a side of the barrier layer 260 away from the sealing layer 230. The polarizer 270 is disposed on a side of the touch electrode layer 250 facing away from the barrier layer 260. And the liquid protection layer 240 is disposed between the sealing layer 230 and the barrier layer 260.
The barrier layer 260 can also serve as a barrier to moisture and air, and further maintain the good performance of the touch display device 200.
It should be noted that, as shown in fig. 2b, the liquid protection layer 240 may also be disposed between the barrier layer 260 and the touch electrode layer 250.
Fig. 3a is a schematic side view of another touch display device according to an embodiment of the invention. As shown in fig. 3a, the touch display device 300 includes a flexible substrate 310, an organic light emitting layer 320 disposed on the flexible substrate 310, a sealing layer 330 disposed on a side of the organic light emitting layer 320 facing away from the flexible substrate 310, a touch electrode layer 350 disposed on a side of the sealing layer 330 facing away from the organic light emitting layer 320, and a liquid protection layer 340. In addition, the touch display device 300 further includes a barrier layer 360 and a polarizer 370. The barrier layer 360 is disposed on a side of the sealing layer 330 away from the organic light emitting layer 320, and the touch electrode layer 350 is disposed on a side of the barrier layer 360 away from the sealing layer 330. The polarizer 370 is disposed between the barrier layer 360 and the touch electrode layer 350. And the liquid protection layer 340 is disposed between the sealing layer 330 and the barrier layer 360.
It should be noted that the liquid protection layer 340 may also be disposed between the barrier layer 360 and the polarizer 370, as shown in fig. 3 b. Or as shown in fig. 3c, between the polarizer 370 and the touch electrode layer 350.
Fig. 4 is a schematic side view of another touch display device according to an embodiment of the invention. As shown in fig. 4, the touch display device 400 includes a flexible substrate 410, an organic light emitting layer 420 disposed on the flexible substrate 410, a sealing layer 430 disposed on a side of the organic light emitting layer 420 facing away from the flexible substrate 410, a touch electrode layer 450 disposed on a side of the sealing layer 430 facing away from the organic light emitting layer 420, and a liquid protection layer 440. In addition, the touch display device further includes a barrier layer 460 and a polarizer 470. The touch electrode layer 450 is disposed on a side of the sealing layer 430 away from the organic light emitting layer 420, and the barrier layer 460 is disposed on a side of the touch electrode layer 450 away from the sealing layer 430. The polarizer 470 is disposed on a side of the barrier layer 460 facing away from the touch electrode layer 450. The liquid protection layer 440 is disposed between the sealing layer 430 and the touch electrode layer 450.
Fig. 5a is a schematic side view of another touch display device according to an embodiment of the present invention. As shown in fig. 5a, the touch display device 500 includes a flexible substrate 510, an organic light emitting layer 520 disposed on the flexible substrate 510, a sealing layer 530 disposed on a side of the organic light emitting layer 520 facing away from the flexible substrate 510, a touch electrode layer 550 disposed on a side of the sealing layer 530 facing away from the organic light emitting layer 520, and a liquid protection layer 540. In addition, the touch display device 500 further includes a barrier layer 560 and a polarizer 570. The barrier layer 560 is disposed on a side of the sealing layer 530 facing away from the organic light emitting layer 520, and the touch electrode layer 550 is disposed on a side of the barrier layer 560 facing away from the sealing layer 530. The polarizer 570 is disposed between the barrier layer 560 and the sealing layer 530. And the liquid protection layer 540 is disposed between the sealing layer 530 and the polarizer 570.
It should be noted that the liquid protection layer 540 may also be disposed between the polarizer 570 and the barrier layer 560 as shown in fig. 5 b. Alternatively, as shown in fig. 5c, the barrier layer 560 is disposed between the touch electrode layer 550.
It should be further noted that in the structures of the touch display devices shown in fig. 2a to fig. 5c, the action principle of the liquid protection layer is referred to fig. 1d and the related description of fig. 1d, which are not repeated herein.
Fig. 6 is a schematic structural diagram of a touch display device according to an embodiment of the present invention. As shown in fig. 6, the touch display apparatus 600 includes a touch display device 610 according to any embodiment of the invention.
The foregoing is considered as illustrative of the preferred embodiments of the invention and technical principles employed. The present invention is not limited to the specific embodiments herein, and it will be apparent to those skilled in the art that various changes, rearrangements, and substitutions can be made without departing from the scope of the invention. Therefore, although the present invention has been described in more detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the claims.
Claims (17)
1. A touch display device, comprising:
a flexible substrate;
an organic light emitting layer disposed on the flexible substrate;
the sealing layer is arranged on one side, away from the flexible substrate, of the organic light emitting layer;
the touch electrode layer is arranged on one side, away from the organic light emitting layer, of the sealing layer;
the liquid protection layer is arranged between the sealing layer and the touch electrode layer;
the liquid protection layer comprises a liquid body and a limiting frame arranged around the periphery of the liquid body, and the outer edge of the limiting frame is flush with the outer surface of the flexible substrate or is arranged inside the flexible substrate;
wherein the limiting frame is made of elastic material;
the curved surface of one side of the organic light-emitting layer close to the flexible substrate is a neutral surface;
when the touch display device is bent, the liquid body flows to the part with the relatively lower position in the liquid protection layer, so that the thickness of the part with the relatively lower position in the liquid protection layer is larger than that of the part with the relatively higher position, the bending radian of the touch electrode layer or the organic light emitting layer far away from the bending center is reduced, the stress borne by the touch electrode layer or the organic light emitting layer is relieved, and the damage rate of devices is reduced.
2. The touch display device of claim 1, wherein the liquid body is formed of a transparent material.
3. The touch display device according to claim 2, wherein the liquid body is any one of a long-chain hydrocarbon polymer, polybutene, polyisobutylene, silicone oil, liquid synthetic rubber, and liquid paraffin.
4. The touch display device of claim 1, wherein the sealing layer is a laminated structure formed by at least one organic layer and at least one inorganic layer, and the laminated structure is two, three, or more than three layers.
5. The touch display device of claim 1, further comprising a barrier layer and a polarizer.
6. The touch display device of claim 5, wherein the barrier layer is disposed on a side of the sealing layer facing away from the organic light emitting layer, and the touch electrode layer is disposed on a side of the barrier layer facing away from the sealing layer.
7. The touch display device of claim 6, wherein the polarizer is disposed on a side of the touch electrode layer facing away from the barrier layer.
8. The touch display device of claim 7, wherein the liquid protection layer is disposed between the touch electrode layer and the barrier layer, or wherein the liquid protection layer is disposed between the sealing layer and the barrier layer.
9. The touch display device of claim 6, wherein the polarizer is disposed between the barrier layer and the touch electrode layer.
10. The touch display device according to claim 9, wherein the liquid protection layer is disposed between the sealing layer and the barrier layer, or the liquid protection layer is disposed between the barrier layer and the polarizer layer, or the liquid protection layer is disposed between the touch electrode layer and the polarizer layer.
11. The touch display device of claim 6, wherein the polarizer is disposed between the sealing layer and the barrier layer.
12. The touch display device of claim 11, wherein the liquid protection layer is disposed between the sealing layer and the polarizer layer, or the liquid protection layer is disposed between the polarizer and the barrier layer, or the liquid layer is disposed between the touch electrode layer and the barrier layer.
13. The touch display device according to claim 5, wherein the touch electrode layer is disposed on a side of the sealing layer facing away from the organic light emitting layer, and the barrier layer is disposed on a side of the touch electrode layer facing away from the sealing layer.
14. The touch display device of claim 13, wherein the polarizer is disposed on a side of the barrier layer facing away from the touch electrode layer.
15. The touch display device of claim 14, wherein the liquid protection layer is disposed between the sealing layer and the touch electrode layer.
16. The touch display device of claim 1, wherein the organic light emitting layer comprises a switching device layer and a light emitting diode layer disposed on the switching device layer.
17. A touch display device comprising the touch display apparatus of any one of claims 1-16.
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| CN201610594357.6A CN106201104B (en) | 2016-07-26 | 2016-07-26 | Touch display device and touch display equipment |
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| CN201610594357.6A CN106201104B (en) | 2016-07-26 | 2016-07-26 | Touch display device and touch display equipment |
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| CN106201104A CN106201104A (en) | 2016-12-07 |
| CN106201104B true CN106201104B (en) | 2020-08-11 |
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| CN106875840B (en) * | 2017-04-01 | 2019-07-23 | 武汉华星光电技术有限公司 | A kind of display device and preparation method thereof |
| JP6573062B2 (en) * | 2017-07-26 | 2019-09-11 | 株式会社村田製作所 | Electronics |
| CN109358772B (en) * | 2018-12-12 | 2021-03-16 | 武汉华星光电半导体显示技术有限公司 | Touch screen and display device |
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| TWI489182B (en) * | 2010-12-10 | 2015-06-21 | Au Optronics Corp | Liquid crystal display panel |
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| JP2002259052A (en) * | 2001-02-27 | 2002-09-13 | Nissha Printing Co Ltd | Liquid crystal display device of touch input system |
| CN102681229A (en) * | 2011-03-09 | 2012-09-19 | 元太科技工业股份有限公司 | Mobile device |
| CN103748538A (en) * | 2011-07-19 | 2014-04-23 | 苹果公司 | touch sensitive display |
| CN104885142A (en) * | 2012-12-27 | 2015-09-02 | 乐金显示有限公司 | Flexible organic light emitting display device and manufacturing method thereof |
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