Liquid crystal display screen capable of avoiding deformation of touch sensor
By designing the first thin film sensing layer with double thickness in the liquid crystal display screen, the problem of deformation of the touch sensor under temperature and humidity changes is solved, and the display effect of the TFT module and the competitiveness of the product are improved.
Patent Information
- Application Number
- CN202420768353.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-04-12
AI Technical Summary
The frame-mounted touch sensor is prone to deform under different temperature and humidity conditions, affecting the display effect of the TFT module, increasing the defect rate of the product, and reducing the competitiveness of the product.
A liquid crystal display screen is designed, including a cover plate and a touch sensing layer disposed under the cover plate. The touch sensing layer is sequentially superimposed by a first film sensing layer, a first optical adhesive layer, a second film sensing layer and a second optical adhesive layer. The thickness of the first film sensing layer is twice or more than twice the thickness of the second film sensing layer to reduce deformation.
By increasing the thickness of the first thin film sensing layer, the deformation amount is reduced, the impact on the display effect of the TFT module is avoided, the defect rate of the product is reduced, and the competitiveness of the product is improved.
Smart Images
Figure CN222784691U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal display screen which can prevent a touch sensor from being deformed. Background Art
[0002] Since the back of the frame-mounted touch sensor is exposed, the outermost thin-film sensing layer is easily deformed under the influence of different temperatures and humidities, especially the thin-film sensing layer with a thickness of about 0.05mm, which is more prone to deformation, affecting the display effect of the TFT module below the thin-film sensing layer, increasing the product defective rate and reducing the product's competitiveness. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to avoid deformation of the touch sensor to ensure the display effect of the TFT module and improve the competitiveness of the product.
[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0005] To solve the above technical problems, the utility model provides a liquid crystal display screen that avoids deformation of a touch sensor, comprising a cover plate and a touch sensing layer arranged under the cover plate, the touch sensing layer comprising a first thin film sensing layer, a first optical adhesive layer, a second thin film sensing layer and a second optical adhesive layer stacked in sequence from bottom to top, and the thickness of the first thin film sensing layer is twice or more than twice the thickness of the second thin film sensing layer.
[0006] As a preferred implementation of the liquid crystal display screen for avoiding deformation of the touch sensor provided by the utility model, the thickness of the first thin film sensing layer is greater than or equal to 0.1 mm, and the thickness of the second thin film sensing layer is 0.05 mm.
[0007] As a preferred implementation of the liquid crystal display screen for avoiding deformation of the touch sensor provided by the utility model, the second thin film sensing layer and the second optical adhesive layer are ultra-thin integrally formed layers.
[0008] As a preferred implementation of the liquid crystal display screen for avoiding deformation of the touch sensor provided by the utility model, the thickness of the ultra-thin integrated molding layer is 0.045 mm.
[0009] As a preferred implementation of the liquid crystal display screen for avoiding deformation of the touch sensor provided by the utility model, it also includes a TFT module arranged under the cover plate, and the TFT module is fully laminated with the first thin film sensing layer.
[0010] As a preferred implementation manner of the liquid crystal display screen for avoiding deformation of the touch sensor provided by the utility model, the TFT module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer arranged in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward, a protrusion is provided on the edge of the upper surface of the lower substrate extending outward, a buffer glue is provided on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the cover plate.
[0011] As a preferred implementation of the liquid crystal display screen for avoiding deformation of the touch sensor provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the upper substrate.
[0012] As a preferred implementation of the liquid crystal display screen for preventing deformation of the touch sensor provided by the utility model, the buffer glue is silicone glue.
[0013] As a preferred implementation of the liquid crystal display screen for avoiding deformation of the touch sensor provided by the utility model, a rounded corner is arranged between the protrusion and the lower substrate.
[0014] As a preferred implementation of the liquid crystal display screen for avoiding deformation of the touch sensor provided by the utility model, the upper surface of the lower substrate and the side surface of the protrusion are rough surfaces.
[0015] The utility model has the following beneficial effects:
[0016] Since the thickness of the first thin film sensing layer is twice or more than twice the thickness of the second thin film sensing layer, it is equivalent to increasing the thickness of the first thin film sensing layer, thereby reducing the deformation of the first thin film sensing layer, avoiding deformation of the first thin film sensing layer and affecting the display effect of the TFT module below the first thin film sensing layer, reducing the defective rate of the product and improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 The present invention is a schematic structural diagram of a liquid crystal display screen for preventing deformation of a touch sensor.
[0019] Figure 2 This is a schematic diagram of the structure of Example 2.
[0020] Figure 3 This is a schematic diagram of the structure of Example 3.
[0021] Figure 4 for Figure 3 Schematic diagram of the improved structure.
[0022] Description of Figure Numbers:
[0023] Cover plate 1; touch sensing layer 2; first thin film sensing layer 21; first optical adhesive layer 22; second thin film sensing layer 23; second optical adhesive layer 24;
[0024] TFT module 3; lower polarizer 31; lower substrate 32; upper substrate 33; upper polarizer 34; protrusion 35; buffer glue 36. DETAILED DESCRIPTION
[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0027] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0028] The utility model provides a liquid crystal display screen for avoiding deformation of a touch sensor, comprising a cover plate and a touch sensing layer arranged below the cover plate, wherein the touch sensing layer comprises a first thin film sensing layer, a first optical adhesive layer, a second thin film sensing layer and a second optical adhesive layer which are sequentially stacked from bottom to top, and the thickness of the first thin film sensing layer is twice or more than twice the thickness of the second thin film sensing layer.
[0029] Since the thickness of the first thin film sensing layer is twice or more than twice the thickness of the second thin film sensing layer, it is equivalent to increasing the thickness of the first thin film sensing layer, thereby reducing the deformation of the first thin film sensing layer, avoiding deformation of the first thin film sensing layer and affecting the display effect of the TFT module below the first thin film sensing layer, reducing the defective rate of the product and improving the competitiveness of the product.
[0030] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.
[0031] Example 1
[0032] See also Figure 1 , a liquid crystal display screen for avoiding deformation of a touch sensor provided by the utility model, comprising a cover plate 1 and a touch sensing layer 2, the touch sensing layer 2 being arranged below the cover plate 1, the touch sensing layer 2 comprising a first thin film sensing layer 21, a first optical adhesive layer 22, a second thin film sensing layer 23 and a second optical adhesive layer 24 which are sequentially stacked from bottom to top, and the thickness of the first thin film sensing layer 21 is two times or more than the thickness of the second thin film sensing layer 23. Since the thickness of the first thin film sensing layer 21 is two times or more than the thickness of the second thin film sensing layer 23, it is equivalent to increasing the thickness of the first thin film sensing layer 21, thereby reducing the deformation of the first thin film sensing layer 21, avoiding deformation of the first thin film sensing layer 21 and affecting the display effect of the TFT module 3 below the first thin film sensing layer 21, reducing the defective rate of the product and improving the competitiveness of the product.
[0033] In this embodiment, the thickness of the first thin film sensor layer 21 is greater than or equal to 0.1 mm, and the thickness of the second thin film sensor layer 23 is 0.05 mm. This can reduce the deformation of the first thin film sensor layer 21 and avoid affecting the display effect of the TFT module 3.
[0034] Example 2
[0035] See also Figure 2 As a further optimization scheme of Example 1, in this embodiment, the second thin film sensing layer 23 and the second optical adhesive layer 24 are ultra-thin integrally formed layers. The thickness of the ultra-thin integrally formed layer is 0.045 mm, the thickness of the first thin film sensing layer 21 is twice or more than twice the thickness of the ultra-thin integrally formed layer, and the thickness of the first thin film sensing layer 21 is greater than or equal to 0.1 mm, so that the thickness of the entire liquid crystal display screen can be reduced, which is consistent with the thickness of the liquid crystal display screen in the traditional scheme.
[0036] Example 3
[0037] See also Figure 3 As a further optimization scheme of Example 1, in this embodiment, a TFT module 3 is further included under the cover plate 1, and the TFT module 3 is fully laminated with the first thin film sensor layer 21. Since the TFT module 3 is fully laminated with the first thin film sensor layer 21, the first thin film sensor layer 21 is fixed and supported, thereby preventing the first thin film sensor layer 21 from deforming. In other embodiments, since the first thin film sensor layer 21 has been fixed and supported by the TFT module 3, the thickness of the first thin film sensor layer 21 can also be set to a traditional thickness, that is, the first thin film sensor layer 21 is equal to the second thin film sensor layer 23, and both are 0.05 mm.
[0038] See also Figure 4 Preferably, the TFT module 3 includes a lower polarizer 31, a lower substrate 32, an upper substrate 33 and an upper polarizer 34 arranged in sequence from bottom to top, the lower substrate 32 is longer than the upper substrate 33 and extends outward, and a protrusion 35 is provided on the edge of the upper surface of the lower substrate 32 extending outward, and a buffer glue 36 is provided on the upper surface of the lower substrate 32 between the protrusion 35 and the upper substrate 33, and the buffer glue 36 abuts against the cover plate 1. Since the edge of the lower substrate 32 is provided with a protrusion 35, the protrusion 35 can limit the flow of the buffer glue 36, so that the shape of the buffer glue 36 is easy to control, and there will be no overflow of glue or incomplete glue dispensing. Thereby preventing the liquid crystal display from being unable to be assembled with the casing. In addition, the problem of poor buffering effect caused by incomplete glue dispensing and easy rupture of the lower substrate 32 is avoided, and the abnormal display of the liquid crystal display is prevented.
[0039] Furthermore, the upper surface of the protrusion 35 is flush with the upper surface of the upper substrate 33 to further limit the flow of the buffer glue 36, so that the shape of the buffer glue 36 is easy to control without overflowing glue or incomplete glue dispensing.
[0040] Furthermore, the buffer glue 36 is silicone glue.
[0041] Furthermore, a chamfer is provided between the protrusion 35 and the lower substrate 32 so that the buffer glue 36 can more easily fill the space between the protrusion 35 on the upper surface of the lower substrate 32 and the upper substrate 33. The protrusion 35 with a chamfer can make the buffer glue 36 flow more smoothly into the space between the protrusion 35 on the upper surface of the lower substrate 32 and the upper substrate 33, so that bubbles are less likely to appear.
[0042] Furthermore, the upper surface of the lower substrate 32 and the side surface of the protrusion 35 are rough surfaces to improve the fixing effect of the buffer glue 36 .
[0043] Furthermore, the rough surface is a frosted surface or a diamond knurling surface to further improve the fixing effect of the buffer glue 36 .
[0044] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0045] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.
Claims
1. A liquid crystal display screen for preventing deformation of a touch sensor, characterized in that: It includes a cover plate and a touch sensing layer arranged under the cover plate, the touch sensing layer includes a first thin film sensing layer, a first optical adhesive layer, a second thin film sensing layer and a second optical adhesive layer stacked in sequence from bottom to top, and the thickness of the first thin film sensing layer is twice or more than twice the thickness of the second thin film sensing layer.
2. The liquid crystal display screen for preventing deformation of the touch sensor according to claim 1, characterized in that: The thickness of the first thin film sensing layer is greater than or equal to 0.1 mm, and the thickness of the second thin film sensing layer is 0.05 mm.
3. The liquid crystal display screen for preventing deformation of the touch sensor according to claim 1, characterized in that: The second thin film sensing layer and the second optical adhesive layer are ultra-thin integrally formed layers.
4. The liquid crystal display screen for preventing deformation of the touch sensor according to claim 3, characterized in that: The thickness of the ultra-thin integrally formed layer is 0.045 mm.
5. The liquid crystal display screen for preventing deformation of the touch sensor according to claim 1, characterized in that: It also includes a TFT module disposed under the cover plate, and the TFT module is fully bonded to the first thin film sensing layer.
6. The liquid crystal display screen for preventing deformation of the touch sensor according to claim 5, characterized in that: The TFT module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer arranged in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward, a protrusion is provided on the edge of the upper surface of the lower substrate extending outward, a buffer glue is provided on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the cover plate.
7. The liquid crystal display screen for preventing deformation of the touch sensor according to claim 6, characterized in that: An upper surface of the protrusion is flush with an upper surface of the upper substrate.
8. The liquid crystal display screen for preventing deformation of the touch sensor according to claim 6, characterized in that: The buffer glue is silicone glue.
9. The liquid crystal display screen for preventing deformation of a touch sensor according to claim 6, characterized in that: A rounded corner is arranged between the protrusion and the lower substrate.
10. The liquid crystal display screen for preventing deformation of a touch sensor according to claim 6, characterized in that: The upper surface of the lower substrate and the side surfaces of the protrusion are rough surfaces.