CN216979739U - Full-lamination OCA touch screen - Google Patents
Full-lamination OCA touch screen Download PDFInfo
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- CN216979739U CN216979739U CN202220618292.5U CN202220618292U CN216979739U CN 216979739 U CN216979739 U CN 216979739U CN 202220618292 U CN202220618292 U CN 202220618292U CN 216979739 U CN216979739 U CN 216979739U
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Abstract
The utility model belongs to the technical field of optical display devices, and provides a full-lamination OCA touch screen, which comprises: touch-sensitive screen, OCA optics transparent adhesive and from the type membrane. The OCA touch screen comprises a touch screen body, a release film, an OCA optical transparent adhesive layer, a release film and a touch screen, wherein the OCA optical transparent adhesive layer is completely laminated on the lower surface of the touch screen body, the release film is attached to the lower surface of the OCA optical transparent adhesive layer, the size of the OCA optical transparent adhesive layer is matched with that of the touch screen body, and the size of the release film is matched with that of the OCA optical transparent adhesive layer, so that the completely laminated OCA touch screen is obtained. The touch screen obtained by the utility model can avoid the problems of product reject ratio caused by multiple times of lamination and large-area lamination, uneven double-side stress of the full-lamination polaroid and blue light leakage of an electronic screen in the prior art.
Description
Technical Field
The utility model relates to the technical field of optical display devices, in particular to a full-lamination OCA touch screen.
Background
With the continuous development of science and technology, liquid crystal display is gradually widely applied in daily life, the configuration of a display device is also continuously refined, and the top surface of a liquid crystal display module is assembled and attached with a touch screen to form the current popular display equipment with a touch function. Touch Panels (TPs), also known as touch panels, are inductive liquid crystal display devices that receive input signals such as contacts, and when a graphic button on the screen is touched, a tactile feedback system on the screen can drive various connection devices according to a preprogrammed program, thereby replacing a mechanical button panel and creating vivid video effects by means of the liquid crystal display screen. As an input device, the touch screen is the simplest, convenient and natural man-machine interaction mode at present. The multimedia interactive device gives the multimedia a brand-new appearance and is a brand-new multimedia interactive device with great attractiveness.
The liquid crystal display module and the touch screen are mainly attached in a frame glue attaching mode and a full attaching mode. The frame glue is attached, namely, the touch screen and the frame part of the liquid crystal display module are attached and fixed by the double-sided adhesive tape, and a gap is formed between the two layers; the full-lamination is that the touch screen and the liquid crystal display module are bonded by OCA (optically clear transparent adhesive), and no gap exists in the middle of the touch screen and the liquid crystal display module.
The liquid crystal display screen and the touch screen are assembled by attaching the upper polarizer of the liquid crystal display screen and the touch screen through OCA optical cement. In the prior art, the polaroid and the OCA optical cement are two separated materials, a separation film on the upper surface of the polaroid and separation films on the upper surface and the lower surface of the OCA optical cement need to be torn off during use, the display screen with the adhered polaroid is tightly adhered to the touch screen cover plate through the OCA optical cement layer, but the requirements on environment cleanliness, adhesion precision and the like in the adhering process are high, and the fraction defective of manufactured products is increased by increasing the adhering times. For reducing the laminating number of times, someone has also proposed a full lamination polaroid, from last to peeling off the membrane down by first, the OCA glue film, the polaroid, the PSA glue film, the membrane is peeled off to the second and is constituteed, this kind of full lamination polaroid has saved the PET protection rete of polaroid, a slice of stripping off the membrane of OCA glue film and has saved the preparation of OCA sticky tape, but attached OCA glue film and the PSA glue film thickness difference of polaroid two sides respectively is great, the stress difference that produces in the drying process can lead to polaroid warpage etc. easily.
Therefore, how to obtain a full-lamination OCA touch screen without multiple lamination is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a full-lamination OCA touch screen which does not need to be laminated for many times and has uniform double-sided stress of a full-lamination polaroid.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides a full lamination OCA touch-sensitive screen, full lamination OCA touch-sensitive screen contains touch-sensitive screen, OCA optics adhesive transparence layer and leaves the type membrane, OCA optics adhesive transparence layer attaches in the touch-sensitive screen lower surface, leave the type membrane attached lower surface at OCA optics adhesive transparence layer.
Furthermore, the OCA optical transparent adhesive layer, the touch screen and the release film have the same size.
Furthermore, the thickness of the OCA optical transparent adhesive layer is 50-250 μm.
Compared with the prior art, the utility model has the following technical effects:
compared with the prior art, the fully-laminated OCA touch screen can effectively reduce the blue light transmittance of the screen, also saves the manufacturing process of an OCA adhesive tape and a stripping film of an OCA adhesive layer, reduces the laminating times, avoids the problem that the two sides of the fully-laminated polaroid are not uniformly stressed due to the large thickness difference of the adhesive layer, improves the yield, and greatly saves the production cost.
Drawings
Fig. 1 is a schematic structural view of a fully-laminated OCA touch screen of the present invention, in which 1 is the touch screen, 2 is an OCA transparent optical adhesive layer, and 3 is a release film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1
Preparing a full-lamination OCA touch screen:
and uniformly coating the liquid OCA optical transparent adhesive on the lower surface of the touch screen, and curing for 50s by using a UV lamp with the wavelength of 365nm to obtain the OCA optical transparent adhesive layer attached to the lower surface of the touch screen, wherein the thickness of the adhesive layer after UV curing is 120 microns, and the size of the adhesive layer is the same as that of the lower surface of the touch screen. And (3) attaching release films with the same size to the lower surface of the OCA optical transparent adhesive layer to protect the OCA adhesive layer, so that the required full-lamination OCA touch screen for the display device is obtained, and the structure of the touch screen is shown in figure 1.
Example 2
Preparing a full-lamination OCA touch screen:
and uniformly coating the liquid OCA optical clear adhesive on the lower surface of the touch screen, and curing for 60s by using UV lamps with the wavelengths of 254nm and 365nm to obtain the OCA optical clear adhesive layer attached to the lower surface of the touch screen, wherein the thickness of the adhesive layer after UV curing is 150 micrometers, and the size of the adhesive layer is the same as that of the lower surface of the touch screen. And (3) attaching release films with the same size to the lower surface of the OCA optical transparent adhesive layer to protect the OCA adhesive layer, so that the required full-lamination OCA touch screen for the display device is obtained.
Example 3
Preparing a full-lamination OCA touch screen:
and uniformly coating the liquid OCA optical transparent adhesive on the lower surface of the touch screen, and curing for 100s by using UV lamps with wavelengths of 254nm and 365nm to obtain the OCA optical transparent adhesive layer attached to the lower surface of the touch screen, wherein the thickness of the adhesive layer after UV curing is 110 microns, and the size of the adhesive layer is the same as that of the lower surface of the touch screen. And (3) attaching release films with the same size to the lower surface of the OCA optical transparent adhesive layer to protect the OCA adhesive layer, so that the required full-lamination OCA touch screen for the display device is obtained.
Example 4
Preparing a full-lamination OCA touch screen:
and uniformly coating the liquid OCA optical transparent adhesive on the lower surface of the touch screen, and curing for 150s by using a UV lamp with the wavelength of 254nm to obtain the OCA optical transparent adhesive layer attached to the lower surface of the touch screen, wherein the thickness of the adhesive layer after UV curing is 160 mu m, and the size of the adhesive layer is the same as that of the lower surface of the touch screen. And (3) attaching release films with the same size to the lower surface of the OCA optical transparent adhesive layer to protect the OCA adhesive layer, so that the required full-lamination OCA touch screen for the display device is obtained.
The OCA touch screen disclosed by the utility model can effectively reduce the blue light transmittance of the screen, and also saves the manufacturing process of an OCA adhesive tape and a stripping film of an OCA adhesive layer, so that the laminating times are reduced, the problem that the two surfaces of a full-laminated polaroid are stressed unevenly due to large thickness difference of the adhesive layer is solved, the yield is improved, and the production cost is greatly saved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. The utility model provides a full lamination OCA touch-sensitive screen, a serial communication port, full lamination OCA touch-sensitive screen contains touch-sensitive screen, OCA optics adhesive clarity layer and leaves the type membrane, OCA optics adhesive clarity layer attaches in the lower surface of touch-sensitive screen, leave the type membrane attached lower surface at OCA optics adhesive clarity layer.
2. The fully-laminated OCA touch screen according to claim 1, wherein the OCA optical clear adhesive layer, the touch screen and the release film are the same in size.
3. The fully-laminated OCA touch screen according to claim 1 or 2, wherein the thickness of the OCA optical transparent adhesive layer is 50-250 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220618292.5U CN216979739U (en) | 2022-03-21 | 2022-03-21 | Full-lamination OCA touch screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220618292.5U CN216979739U (en) | 2022-03-21 | 2022-03-21 | Full-lamination OCA touch screen |
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| Publication Number | Publication Date |
|---|---|
| CN216979739U true CN216979739U (en) | 2022-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220618292.5U Active CN216979739U (en) | 2022-03-21 | 2022-03-21 | Full-lamination OCA touch screen |
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| CN (1) | CN216979739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115359727A (en) * | 2022-09-22 | 2022-11-18 | 苏州桐力光电股份有限公司 | Screen attaching method, display screen and electronic equipment |
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2022
- 2022-03-21 CN CN202220618292.5U patent/CN216979739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115359727A (en) * | 2022-09-22 | 2022-11-18 | 苏州桐力光电股份有限公司 | Screen attaching method, display screen and electronic equipment |
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