CN112286385A - External hanging type touch display module, display device and terminal - Google Patents
External hanging type touch display module, display device and terminal Download PDFInfo
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- G—PHYSICS
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- 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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Abstract
The application relates to outer hanging touch-control display module assembly, display device and terminal, outer hanging touch-control display module assembly includes: the thin film transistor liquid crystal module comprises a backlight layer, a bottom polarizing layer and a liquid crystal pixel layer which are sequentially superposed; the touch module comprises a metal grid layer and an optical adhesive layer which are sequentially overlapped, and the optical adhesive layer is overlapped on the liquid crystal pixel layer; a cover plate comprising only a top polarizing layer overlying the metal mesh layer. The touch display module has the advantages of simple structure, and reduces the structure layer of the cover plate glass, the overall thickness and the light transmittance compared with the traditional externally-hung touch display module; the structure cost is reduced, and the process cost is reduced due to the reduction of production procedures; the structural strength of the externally-hung touch display module is greatly improved, and the screen is not easy to crack to cause screen breakage; the technical difficulty is lower than that of the embedded touch module, and the manufacturing yield of the touch display module is favorably improved, so that the product competitiveness is integrally improved.
Description
Technical Field
The present disclosure relates to touch technologies, and in particular, to an externally-hung touch display module, a display device and a terminal.
Background
With the evolution of Touch industry technology, in order to reduce cost, the structure of a Touch Panel (TP) product is simplified from the original GG (Glass-Glass) structure to the GF (Glass-Film) structure. However, as in-cell and on-cell technologies begin to mature and the cost is relatively low, the external touch display module is gradually miniaturized.
Specifically, the thickness of the traditional externally-hung touch display module is as high as more than 2.7 mm due to the complex structure, and the thickness is still more than 2.4 mm after continuous optimization; as shown in fig. 1, the conventional external-hanging touch display module includes a tft liquid crystal module 100, a touch module 200, and a cover plate 300; the tft liquid crystal module 100 includes a backlight layer 110, a bottom polarizing layer 120, a liquid crystal pixel layer 130, and a top polarizing layer 310, which are sequentially stacked, the touch module 200 includes a second optical adhesive layer 230, a metal mesh layer 210, and a first optical adhesive layer 220, which are sequentially stacked, and the first optical adhesive layer 220 and the second optical adhesive layer 230 are named for distinction and are both optical adhesive layers in nature; the materials of the first optical adhesive layer 220 and the second optical adhesive layer 230 may be the same or different; the thicknesses of the first optical adhesive layer 220 and the second optical adhesive layer 230 may be the same or different; the cover plate 300 includes a cover glass 330, the cover glass 330 is stacked on the second optical adhesive layer 230, and the first optical adhesive layer 220 is stacked on the top polarizing layer 310.
In contrast, the thickness of the current smart phone is usually smaller than 9 mm or 8 mm, for example, the smart phone iPhone5 adopts an in-cell screen, which can reduce the thickness of the iPhone by approximately 0.5mm compared with the conventional external touch display module, which is an important reason why the conventional external touch display module is abandoned.
That is, the externally-hung touch display module lacks competitiveness due to thickness and cost problems, and even a thickness of 0.1 mm is an optimization target that needs to be strived for as much as possible.
Disclosure of Invention
Therefore, there is a need for an external touch display module, a display device and a terminal.
An externally-hung touch display module, comprising:
the thin film transistor liquid crystal module comprises a backlight layer, a bottom polarizing layer and a liquid crystal pixel layer which are sequentially superposed;
the touch module comprises a metal grid layer and an optical adhesive layer which are sequentially overlapped, and the optical adhesive layer is overlapped on the liquid crystal pixel layer;
a cover plate comprising only a top polarizing layer overlying the metal mesh layer.
The externally-hung touch display module has the advantage of simple structure, reduces the structure layer of the cover plate glass compared with the traditional externally-hung touch display module, is favorable for reducing the overall thickness and simultaneously improves the light transmittance; on the other hand, the structure cost is reduced, and the production procedures are reduced, so that the process cost is reduced; on the other hand, the top polarizing layer is adopted to replace the traditional glass, so that the structural strength of the externally-hung touch display module is greatly improved, and the problem of screen breakage caused by breakage is avoided; in another aspect, the external hanging technology has lower difficulty than the in-cell and on-cell embedded touch module technologies, which is beneficial to improving the manufacturing yield of the touch display module, thereby improving the product competitiveness as a whole.
In one embodiment, the top polarizing layer has an adhesive and is adhered to the metal mesh layer through the adhesive.
In one embodiment, the adhesive forms an adhesive layer.
In one embodiment, only one of the optical glue layers is included.
In one embodiment, the light transmittance of the optical adhesive layer is greater than or equal to 92%.
In one embodiment, the thickness of the optical adhesive layer is less than 200 microns.
In one embodiment, the metal mesh layer uses a cyclic olefin polymer film as a substrate.
In one embodiment, the metal mesh layer includes two metal meshes and a cyclic olefin polymer film located between the two metal meshes.
A display device is provided with any one of the externally hung touch display modules.
A terminal has the display device.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an embodiment of a conventional external touch display module.
Fig. 2 is a schematic structural diagram of an embodiment of an externally-hung touch display module according to the present application.
Fig. 3 is a schematic structural diagram of another embodiment of the external touch display module of the present application.
Fig. 4 is a schematic structural diagram of an embodiment of a metal mesh layer of the plug-in touch display module according to the present application.
Reference numerals:
the liquid crystal display device comprises a thin film transistor liquid crystal module 100, a touch module 200 and a cover plate 300;
a backlight layer 110, a bottom polarizing layer 120, a liquid crystal pixel layer 130;
a metal mesh layer 210, a first optical adhesive layer 220, a second optical adhesive layer 230;
a top polarizing layer 310, an adhesive layer 320, a cover glass 330;
a first metal mesh 211, a second metal mesh 212, and a cyclic olefin polymer film 213.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not denote a single embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of the present application, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In order to solve the problem that the conventional externally-hung touch display module is too thick and expensive and lacks competitiveness, in an embodiment of the present application, as shown in fig. 2, an externally-hung touch display module includes a tft liquid crystal module 100, a touch module 200 and a cover plate 300; the thin film transistor liquid crystal module 100 includes a backlight layer 110, a bottom polarizing layer 120 and a liquid crystal pixel layer 130 stacked in sequence; the touch module 200 includes a metal mesh layer 210 and a first optical adhesive layer 220 sequentially stacked, wherein the first optical adhesive layer 220 is stacked on the liquid crystal pixel layer 130; the cover plate 300 includes only the top polarizing layer 310, and the top polarizing layer 310 is stacked on the metal mesh layer 210. In the embodiments of the present application, only one optical adhesive layer is the first optical adhesive layer 220. In the embodiments of the present application, the touch module 200 is located between the top polarizing layer 310 and the tft-lcd module 100, that is, the touch module 200 is located between the top polarizing layer 310 and the liquid crystal pixel layer 130, and the top polarizing layer 310 is used to replace a Cover Glass (also called a Glass Cover) of a conventional externally-hung touch display module, which is the most important invention of the externally-hung touch display module of the present application; on the other hand, the structure cost is reduced, and the production procedures are reduced, so that the process cost is reduced; on the other hand, the top polarizing layer is adopted to replace the traditional glass, so that the structural strength of the externally-hung touch display module is greatly improved, and the problem of screen breakage caused by breakage is avoided; in another aspect, the external hanging technology has lower difficulty than the in-cell and on-cell embedded touch module technologies, which is beneficial to improving the manufacturing yield of the touch display module, thereby improving the product competitiveness as a whole.
In one embodiment, an external-hanging touch display module comprises a part of or the whole structure of the following embodiments; that is, the external-hanging touch display module includes some or all of the technical features of the following embodiments.
A cover plate of a traditional externally-hung touch display module is cover plate glass, and a Top polarizing layer (Top Pol) is implemented as a part of a thin film transistor liquid crystal module, namely, the Top polarizing layer is integrally arranged in a Liquid Crystal Module (LCM) as a part of the liquid crystal module, the liquid crystal module in the structure is an integral body, and the Top polarizing layer is only a part of the liquid crystal module; glass is easy to break, so that the product is damaged or even unusable, and the problem is perfectly avoided by canceling the cover plate glass and adjusting the position of the top polarizing layer; meanwhile, the structure of a Thin Film Transistor Liquid Crystal Display (TFT LCD) is simplified, and two purposes can be achieved. In one embodiment, the top polarizing layer has an adhesive and is adhered to the metal mesh layer through the adhesive. In one embodiment, the adhesive is a part of the top polarizing layer. In one embodiment, the adhesive forms an adhesive layer. The adhesive or bonding layer is the structure of the top polarizing layer itself, and in one embodiment, the top polarizing layer comprises an adhesive layer, a first protective layer, a polarizing layer and a second protective layer, which are sequentially stacked, wherein the adhesive layer is adhesively stacked on the metal mesh layer. The first and second passivation layers may be made of the same material, such as Triacetyl cellulose (TAC); the polarizing layer may be polyvinyl alcohol (PVA) to which a protective layer is added at both sides because it is easily hydrolyzed. The top polarizing layer is used as a raw material and also comprises a release film layer which is attached to the adhesive layer and is removed when in use. As shown in fig. 3, an externally-hung touch display module includes a tft liquid crystal module 100, a touch module 200, and a cover plate 300; the thin film transistor liquid crystal module 100 includes a backlight layer 110, a bottom polarizing layer 120 and a liquid crystal pixel layer 130 stacked in sequence; the touch module 200 includes a metal mesh layer 210 and a first optical adhesive layer 220 sequentially stacked, wherein the first optical adhesive layer 220 is stacked on the liquid crystal pixel layer 130; the cover plate 300 only includes the top polarizing layer 310, the top polarizing layer 310 is stacked on the metal mesh layer 210, and the top polarizing layer 310 is adhered to the metal mesh layer 210 by the adhesive layer 320. It should be understood that the top polarizing layer is essentially a polarizing layer, which may also be referred to as a Polarizer, and in general, a Polarizer (Polarizer) with an adhesive layer may be selected as the top polarizing layer, and the Polarizer is usually made by combining a PVA film, a TAC film, a protective film, a release film, a pressure sensitive adhesive, and the like, and the pressure sensitive adhesive is the adhesive layer. Due to the design, on one hand, the structural strength of the cover plate is favorably improved, so that the structural strength of the externally-hung touch display module is greatly improved, and the problem of screen breakage caused by breakage is not easy to occur; on the other hand, the thickness of the externally hung touch display module is reduced; on the other hand, the self viscosity of the top polarizing layer can be properly utilized, the top polarizing layer is firmly attached to the touch module, and the metal grid layer has additional benefits in the treatment, the top polarizing layer or the polaroid is more flexible compared with glass and has a certain deformation effect, the arrangement that the hard glass of the traditional externally-hung touch display module is adjacent to the metal grid layer is avoided, the sensor functional structure of the metal grid layer is in contact with the hard cover plate glass and cannot be tightly attached to the cover plate glass, so that the defects such as folds or bubbles are easily generated after the attachment, the top polarizing layer is designed as a cover plate and is more flexible compared with the glass, the adhesive body of the top polarizing layer is beneficial to being tightly attached to the metal grid layer, the technical problems are ingeniously and perfectly solved, and the product yield is greatly improved; further, the method and the device are also suitable for application scenes of the flexible display screen.
In order to reduce the thickness of the externally-hung Touch display module as much as possible, in one embodiment, as shown in fig. 2 or 3, the externally-hung Touch display module only includes one first optical Adhesive layer 220, and the first optical Adhesive layer 220 is disposed between the metal mesh layer and the liquid crystal pixel layer. The invention is also an important invention of the externally-hung touch display module, which can reduce the thickness of the externally-hung touch display module and improve the light transmittance of the externally-hung touch display module. This is achieved based on the top polarizing layer replacing the glass cover plate of the conventional art, in the conventional art, because of the glass cover plate, a thicker optical glue layer is needed to firmly attach the glass cover plate to the metal grid layer, the thickness of the optical glue layer usually reaches 70 μm or even higher, and the design of using the top polarizing layer as the cover plate, because the whole thickness of the top polarizing layer and its bonding body or bonding layer is about 15% to 23% of the thickness of the glass cover plate, on one hand, the optical glue layer for bonding the glass cover plate is not needed; on the other hand, the top polarizing layer can be stably arranged only by the adhesive body or the adhesive layer of the top polarizing layer, or a shallow adhesive body or the adhesive layer, for example, the top polarizing layer is closely attached to the metal grid layer. Further, in one embodiment, the thickness of the cover plate is 45% to 50% of the thickness of the touch module. Further, in one embodiment, the thickness of the cover plate is 47.3% or 47.4% of the thickness of the touch module. It is worth pointing out that, the thickness of the glass cover plate in the conventional art is 1.4 to 1.7 times of the thickness of the touch module, and the thickness of the touch module in the conventional art is 1.3 to 1.4 times of the thickness of the touch module in the present application, and the two layers are combined to show that the thickness of the glass cover plate in the conventional art is more than 2 times of the thickness of the touch module in the present application; for flat-panel products, such as mobile phones, whose optimization index is pursuit of a thickness level of 0.1 mm, this thickness difference is very large enough to allow the external touch module to compete equally with the embedded touch module. Moreover, the thin film transistor liquid crystal module of the conventional art is an integral body, and comprises a backlight layer, a bottom polarizing layer, a liquid crystal pixel layer and a top polarizing layer which are sequentially stacked. Further, such design is favorable to promoting touch module's touch-control accuracy to a certain extent because top polarisation layer is thinner for traditional glass apron.
In order to ensure the light transmission performance, in one embodiment, the light transmittance of the optical adhesive layer, i.e., the first optical adhesive layer 220, in the embodiments of the present application is greater than or equal to 92%. In one embodiment, the light transmittance of the first optical adhesive layer 220 is greater than or equal to 94%. In one embodiment, the light transmittance of the first optical adhesive layer 220 is greater than or equal to 95%. Because the glass cover plate is replaced by the top polarizing layer, the overall weight and thickness of the touch module and the cover plate are greatly reduced, and the thickness of the optical adhesive layer can be reduced, i.e., the optical adhesive layer does not need to excessively provide higher bonding strength, and further, in one embodiment, the first optical adhesive layer 220 is thinned. Further, in one embodiment, the external-hanging touch display module only includes one layer of the first optical adhesive layer 220, and the first optical adhesive layer 220 is thinned by 20%. In one embodiment, the external touch display module only includes one layer of the first optical adhesive layer 220, and the thickness of the first optical adhesive layer 220 is reduced by 25%. In one embodiment, the external touch display module only includes one layer of the first optical adhesive layer 220, and the thickness of the first optical adhesive layer 220 is reduced by 30%. In one embodiment, the external touch display module only includes one layer of the first optical adhesive layer 220, and the thickness of the first optical adhesive layer 220 is reduced by 35%. As mentioned above, since the overall weight and thickness of the touch module and the cover plate are both greatly reduced, the optical adhesive layer can be thinned, which is beneficial to reducing the overall thickness and improving the light transmittance; however, the thickness reduction is limited, and cannot be reduced without limitation, and the adhesion effect is ensured. Two-layer optical adhesive layer in traditional outer hanging touch-control display module assembly thickness is more than 200 microns totally, for example 240 microns or 250 microns etc. and this application then reduces under the prerequisite of bonding strength in the cooperation, and attenuate optical adhesive layer as far as possible in order to ensure under the prerequisite of bonding effect, reduces outer hanging touch-control display module assembly's thickness, is favorable to reducing construction cost, still promotes outer hanging touch-control display module assembly's luminousness simultaneously. In one embodiment, the thickness of the first optical adhesive layer 220 is less than 200 μm. That is, only one first optical adhesive layer 220 is used between the metal mesh layer 210 and the tft liquid crystal module 100, and the thickness of the first optical adhesive layer 220 is less than 200 μm. In one embodiment, the thickness of the first optical adhesive layer 220 is less than or equal to 195 micrometers. In one embodiment, the thickness of the first optical adhesive layer 220 is less than or equal to 190 micrometers. In one embodiment, the thickness of the first optical adhesive layer 220 is less than or equal to 180 micrometers. In one embodiment, the thickness of the first optical adhesive layer 220 is less than or equal to 170 micrometers. In one embodiment, the thickness of the first optical adhesive layer 220 is less than or equal to 160 micrometers. In one embodiment, the thickness of the first optical adhesive layer 220 is less than or equal to 150 μm. The optical adhesive layer is not too thick, and a colloid with poor transmittance cannot be used, and the colloid with poor transmittance affects light penetration. Due to the design, on one hand, the thickness of the externally-hung touch display module is reduced; on the other hand, the number of layers of the optical adhesive layer is reduced, so that the thickness of the optical adhesive layer is limited, and the light transmittance of the externally-hung touch display module is favorably ensured; on the other hand, the method is beneficial to reducing materials to reduce the structure cost, and simultaneously reduces the production procedures to reduce the process cost.
In order to be generally used for ordinary display screens and flexible screens, the design of a Metal Mesh layer is adopted in the application, the Metal Mesh layer is used as a Metal Mesh Sensor (Sensor), and the Metal Mesh layer has the advantages of low power consumption, sensitive touch control, long service life, flexibility and the like, and in order to further solve the problem that a traditional Metal Mesh layer adopts PET (Polyethylene terephthalate) to cause birefringence, such as rainbow patterns and other phenomena, in one embodiment, the Metal Mesh layer adopts a cycloolefin Polymer (COP) film as a base material, the cycloolefin Polymer film is used as the base material, and the refractive index of the cycloolefin Polymer film is favorable for being matched with a polarizing top layer to avoid the birefringence problem. In one embodiment, the metal mesh layer includes two metal meshes and a cyclo olefin polymer Film located between the two metal meshes, and it is also understood that the metal mesh layer is a metal mesh Film in which a cyclo olefin polymer Film is used as a substrate, i.e., a Sensor Film (Sensor Film) material is a cyclo olefin polymer. In one embodiment, as shown in fig. 4, the metal mesh layer 210 includes a first metal mesh 211, a second metal mesh 212, and a cyclic olefin polymer film 213, wherein the cyclic olefin polymer film 213 is used as a substrate, and the cyclic olefin polymer film 213 is located between the first metal mesh 211 and the second metal mesh 212. Such design is applicable to the flexible screen on the one hand, and on the other hand has the technological effect of normal demonstration, has avoided the production of birefringence such as rainbow line.
The following description is continued by comparing the externally-hung touch display module with a conventional externally-hung touch display module, as shown in table 1 below, in which the mass calculation is performed by taking a 14.4-inch display module as an example.
TABLE 1
As can be seen from table 1, compare with the touch-control display module assembly of traditional outer hanging, this application has just replaced apron glass with top polarisation layer in the position that has adjusted top polarisation layer in other words, has left out apron glass and one deck optical cement layer.
The total thickness of the traditional externally-hung touch display module is 2.42 mm, while the total thickness of the externally-hung touch display module is 1.95 mm, which is reduced by 0.47 mm and basically equivalent to the technology of the in-cell or on-cell embedded touch module; compared with the traditional externally hung touch display module, the thickness is reduced by about 19.4 percent.
The total mass of the traditional externally hung touch display module is about 322.2 g, while the total mass of the externally hung touch display module is about 248.9 g, which is reduced by 73.3 g, namely, the mass is reduced by about 22.7%.
The material cost of the traditional externally-hung touch display module is 100%, and the material cost of the externally-hung touch display module is reduced by about 8.7%.
To sum up, the externally-hung touch display module is superior to the traditional externally-hung touch display module in thickness, quality and material cost, and has a prominent weight reduction effect on large-size touch display modules, such as touch display modules with the size of more than 10 inches, so that the externally-hung touch display module is particularly suitable for large-size touch display modules, and display devices or mobile terminals using the large-size touch display modules.
A display device is provided with the plug-in touch display module of any embodiment. In one embodiment, the display device has an external touch display module, and the external touch display module includes: the thin film transistor liquid crystal module comprises a backlight layer, a bottom polarizing layer and a liquid crystal pixel layer which are sequentially superposed; the touch module comprises a metal grid layer and an optical adhesive layer which are sequentially overlapped, and the optical adhesive layer is overlapped on the liquid crystal pixel layer; a cover plate comprising only a top polarizing layer overlying the metal mesh layer. The rest of the embodiments are analogized and are not described in detail. In one embodiment, the display device includes a display screen, a television, and the like.
A terminal having the display device of any of the embodiments. In one embodiment, the terminal has a display device, the display device has an external touch display module, and the external touch display module includes: the thin film transistor liquid crystal module comprises a backlight layer, a bottom polarizing layer and a liquid crystal pixel layer which are sequentially superposed; the touch module comprises a metal grid layer and an optical adhesive layer which are sequentially overlapped, and the optical adhesive layer is overlapped on the liquid crystal pixel layer; a cover plate comprising only a top polarizing layer overlying the metal mesh layer. The rest of the embodiments are analogized and are not described in detail. In one embodiment, the terminal comprises a mobile phone, a tablet, a computer, a display device and the like.
The display device and the terminal adopt the externally hung touch display module, inherit the advantages of the externally hung touch display module, and are not repeated. Therefore, it is often 0.2 mm or even 0.1 mm that it can be determined whether a product can be put on line, and especially for a main ultra-thin and ultra-light mobile terminal, even if the thickness is reduced by 0.1 mm or the mass is reduced by 1 g, is a goal that technicians continuously pursue. And this application has improved traditional outer hanging touch-control display module assembly ingeniously, has greatly reduced thickness and quality for outer hanging touch-control display module assembly can heavily compete with embedded touch-control display module assembly mutually, is applicable to various display products and needs to carry out the product that shows.
It should be noted that other embodiments of the present application further include an external-hanging touch display module, a display device and a terminal, which are formed by combining technical features of the above embodiments.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.
Claims (10)
1. The utility model provides an outer hanging touch-control display module assembly which characterized in that includes:
the thin film transistor liquid crystal module comprises a backlight layer, a bottom polarizing layer and a liquid crystal pixel layer which are sequentially superposed;
the touch module comprises a metal grid layer and an optical adhesive layer which are sequentially overlapped, and the optical adhesive layer is overlapped on the liquid crystal pixel layer;
a cover plate comprising only a top polarizing layer overlying the metal mesh layer.
2. The externally-hung touch display module according to claim 1, wherein the top polarizer layer has an adhesive and is adhered to the metal grid layer through the adhesive.
3. The externally-hung touch display module according to claim 2, wherein the adhesive forms an adhesive layer.
4. The externally-hung touch display module according to claim 1, wherein the externally-hung touch display module comprises only one layer of the optical adhesive layer.
5. The externally-hung touch display module according to claim 4, wherein the light transmittance of the optical adhesive layer is greater than or equal to 92%.
6. The externally-hung touch display module according to claim 4, wherein the thickness of the optical adhesive layer is less than 200 μm.
7. The on-touch display module of any one of claims 1-6, wherein the metal mesh layer is a cyclic olefin polymer film as a substrate.
8. The on-cell touch display module of claim 7, wherein the metal mesh layer comprises two metal meshes and a cyclic olefin polymer film between the two metal meshes.
9. The utility model provides a display device which characterized in that has outer hanging touch-control display module assembly, outer hanging touch-control display module assembly includes:
the thin film transistor liquid crystal module comprises a backlight layer, a bottom polarizing layer and a liquid crystal pixel layer which are sequentially superposed;
the touch module comprises a metal grid layer and an optical adhesive layer which are sequentially overlapped, and the optical adhesive layer is overlapped on the liquid crystal pixel layer;
a cover plate comprising only a top polarizing layer overlying the metal mesh layer.
10. The terminal is characterized by comprising a display device, wherein the display device is provided with an externally-hung touch display module, and the externally-hung touch display module comprises:
the thin film transistor liquid crystal module comprises a backlight layer, a bottom polarizing layer and a liquid crystal pixel layer which are sequentially superposed;
the touch module comprises a metal grid layer and an optical adhesive layer which are sequentially overlapped, and the optical adhesive layer is overlapped on the liquid crystal pixel layer;
a cover plate comprising only a top polarizing layer overlying the metal mesh layer.
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Effective date of registration: 20240204 Address after: 611731 No. 689, Hezuo Road, West District, hi tech Zone, Chengdu, Sichuan Applicant after: Interface Technology (Chengdu) Co., Ltd. Country or region after: China Applicant after: INTERFACE OPTOELECTRONICS (SHENZHEN) Co.,Ltd. Address before: No.75, Xinmei Road, Xinwu District, Wuxi City, Jiangsu Province Applicant before: Yicheng Photoelectric (Wuxi) Co.,Ltd. Country or region before: China |