Wide viewing angle LCD touch display screen

Abstract

The application discloses a wide-viewing-angle LCD touch display screen, which solves the problem of waste caused by the need of more raw materials such as substrates during assembly by means of adhesion, and comprises a touch TP module, wherein the touch TP module comprises two upper and lower conductive grid components, a middle substrate and a first optical adhesive layer are sequentially arranged from top to bottom between the two conductive grid components, lead connection components are symmetrically arranged between the two conductive grid components, the conductive grid component comprises a metal grid, and an electrically-conductive column is equidistantly arranged on both sides of the metal grid; the lead connection component comprises two upper and lower limiting horizontal plates, an inner groove is formed in the limiting horizontal plate, and a positioning groove is equidistantly formed on one side of the two inner groves at the same height; the upper and lower metal grids are limited by the two limiting horizontal plates, the middle substrate is limited and compressed, and the assembly stability is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of touch display screens, and particularly relates to a wide-view LCD touch display screen. BACKGROUND

[0002] Liquid crystal display is the most common flat panel display technology at present, and is widely applied to various fields such as televisions, mobile phones, vehicles, industry and medical treatment. The principle of liquid crystal display is mainly based on the birefringence effect of liquid crystal molecules to modulate the transmittance of polarized light, so as to realize bright and dark display. The birefringence effect of liquid crystal molecules is related to the direction of incident light. After the backlight module emits light to the liquid crystal cell, the different optical path differences of the light will cause the transmittance of the polarized light to be different. The transmittance of the polarized light incident on the liquid crystal cell along the vertical direction is extremely small (close to 0, referred to as a dark state), while the transmittance of the polarized light incident on the liquid crystal cell along the inclined direction is not 0, and the light leakage phenomenon occurs, which leads to the decrease of the contrast ratio of the liquid crystal display device and the narrowing of the viewing angle, and cannot meet the use requirements of users. A general touch TP module is composed of two metal grids from top to bottom, lead wires connected with the metal grids and a middle substrate between the two metal grids. In the production process, the layers need to be bonded and arranged, but there are the following defects:

[0003] Through the bonding assembly, more raw materials such as substrates are needed, and there is waste. Meanwhile, in the assembly process of the metal grid and the middle substrate, the positioning effect is poor, which affects the formation. SUMMARY

[0004] In view of the above problems, in order to overcome the defects of the prior art, the application provides a wide-view LCD touch display screen, which effectively solves the problem of waste caused by the need for more raw materials such as substrates in the assembly by bonding.

[0005] To achieve the above purpose, the application provides the following technical scheme: a wide-view LCD touch display screen, comprising a touch TP module, the touch TP module comprising two conductive grid assemblies from top to bottom, a middle substrate and a first optical adhesive layer being sequentially arranged from top to bottom between the two conductive grid assemblies, and a lead wire connecting assembly being symmetrically installed between the two conductive grid assemblies.

[0006] The conductive grid assembly comprises a metal grid, and an electrical connection column is equally installed on both sides of the metal grid.

[0007] The lead wire connecting assembly comprises two limiting horizontal plates from top to bottom, an internal groove is formed in the inside of the limiting horizontal plate, a positioning groove is equally formed on one side of the two internal grooves close to each other at the same height, an insertion groove is equally formed on one side of the two limiting horizontal plates close to each other, the insertion groove is communicated with the positioning groove, and a compression electrical connection piece for clamping and fixing the electrical connection column and connecting electricity is installed in the inside of the internal groove.

[0008] Preferably, two limiting horizontal plates on the two sides are symmetrically provided with two rotating drums on the side away from each other, limiting side plates are arranged between the two limiting horizontal plates, the two limiting side plates are in contact with the side away from each other of the limiting horizontal plates on the two sides, and the two ends of the limiting side plates are symmetrically provided with fixed shafts, the rotating drums are rotationally connected with the fixed shafts, and when the upper and lower limiting horizontal plates are in a horizontal state, the rotating drums and the fixed shafts are fixed through screws.

[0009] Preferably, the pressing electrical connecting part comprises a clamping plate slidingly installed in the inner groove, a clamping groove is equidistantly arranged on the side of the clamping plate close to the positioning groove, the clamping groove corresponds to the positioning groove one by one, an electrical connecting arc plate is installed on the inner wall of the clamping groove, a moving plate is arranged on the side of the clamping plate away from the positioning groove, a first spring is symmetrically installed on the side of the moving plate away from the clamping plate, one end of the first spring is fixedly connected with the inner wall of the inner groove, and an auxiliary pressing part is installed in the inner groove.

[0010] Preferably, two movable grooves are symmetrically arranged in the clamping plate, a movable rod is movably installed in the movable groove, one end of the movable rod penetrates to the side of the clamping plate close to the moving plate, one end of the movable rod is fixedly connected with the moving plate, a second spring is fixedly installed on the side of the movable rod away from the moving plate, and one end of the second spring is fixedly connected with the end inner wall of the movable groove.

[0011] Preferably, a conductive sliding strip is installed on the inner wall of the side away from each other of the upper and lower inner grooves, a contact point is installed on the clamping plate, the contact point is in contact with the conductive sliding strip, the contact point and each electrical connecting arc plate on the clamping plate are electrically connected through a wire, and the conductive sliding strip is externally connected with the wire.

[0012] Preferably, the auxiliary pressing part comprises a pressure rod fixedly installed on the side of the moving plate away from the clamping plate, a rod groove is arranged on the side of the inner groove close to the limiting side plate, the pressure rod is movably installed in the rod groove, and the end portion of the pressure rod is arranged in a semispherical shape.

[0013] Preferably, two fixed boxes are symmetrically arranged on the two sides of the pressure rod, the fixed boxes are fixedly connected with the limiting horizontal plate, a pressure plate is movably installed in the fixed box, the pressure plates on the upper and lower sides are symmetrically installed on the side close to each other, a pressing column is arranged on the end portion of the pressure plate, the pressing column penetrates to the outside of the limiting horizontal plate, a pressing plate is movably installed in the fixed box, the pressing plate is located on the side of the pressure plate away from the pressing column, a third spring is fixedly installed between the pressure plate and the pressing plate, a fourth spring is symmetrically installed on the side of the pressing plate away from the pressure plate, and one end of the fourth spring is fixedly connected with the end inner wall of the fixed box.

[0014] Preferably, the pressing plate is fixedly installed with a pressed block away from the side of the pressed plate, a communication groove is formed in the fixed box, the inner cavity of the fixed box is communicated with the inner cavity of the inner groove through the communication groove, the inner side of the communication groove is provided with an extrusion block, the extrusion block is located away from the side of the pressed block, and the inclined surface of the extrusion block is in contact with the inclined surface of the pressed block.

[0015] Preferably, the lower side of the touch TP module is provided with an LCD display module, the lower side of the LCD display module is provided with an optical film layer, the lower side of the optical film layer is provided with a base layer, the upper side of the touch TP module is provided with a second optical adhesive layer, the upper side of the second optical adhesive layer is provided with a transparent cover plate, and the second optical adhesive layer and the LCD display module are respectively installed with the upper and lower two metal grids in a sputtering mode.

[0016] Preferably, the LCD display module is composed of a plurality of spaced first microstructures and a hard coating layer, there is a gap between the two adjacent first microstructures, the longitudinal cross-sectional width of the first microstructure is arranged in a tapering manner from the light entrance side of the optical film layer to the light exit side, and the hard coating layer covers the optical microstructure layer LCD display module and fills the gap.

[0017] Compared with the prior art, the present application has the following advantages:

[0018] 1) In the work, at least one conductive layer of the touch TP module is formed on the surface of the optical film by sputtering or evaporation process through the setting of the LCD touch display screen, at least one substrate and OCA adhesive layer can be saved, a new structure with wide viewing angle effect and TP function is provided, the display screen thickness is reduced without additional cost and process, and the viewing needs of users at different angles are met;

[0019] 2) In the work, the metal grid side part is inserted into the corresponding metal grid to position the metal grid after the limiting horizontal plate is rotated, sputtering is facilitated, the metal grid is clamped and fixed after the clamping groove inner wall arc plate is tightly attached to the outer wall of the power connection column after the clamping plate and the moving plate are moved, the sputtering stability is improved, and the conductivity stability of the metal grid is improved;

[0020] 3) In the work, one side of the moving plate is provided with a pressed rod, the pressed rod penetrates through the rod groove to the outside of the limiting horizontal plate, and when the limiting horizontal plate is rotated to be perpendicular to the limiting side plate, the end of the pressed rod is pressed by the limiting side plate and moves to the side of the clamping plate, the clamping plate is clamped and fixed to the power connection column, and assembly is facilitated;

[0021] 4) In the work, by setting the pressure bar moves to the side of the clamp plate, push the extrusion block synchronous movement, in turn, so that the extrusion block to the pressure block to the side of the pressure column pressure, so that the upper and lower two sides of the pressure column to the middle of the two metal mesh substrate between the pressure, improve the installation stability. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are meant to explain the present application and are not intended to limit the application.

[0023] In the drawings:

[0024] Figure 1 A wide viewing angle LCD touch display screen structure schematic diagram of the present application;

[0025] Figure 2 A touch TP module structure schematic diagram of the present application;

[0026] Figure 3 A conductive grid assembly structure schematic diagram of the present application;

[0027] Figure 4 A lead connection assembly structure schematic diagram of the present application;

[0028] Figure 5 A limit horizontal plate internal structure schematic diagram of the present application;

[0029] Figure 6 A clamp plate structure schematic diagram of the present application;

[0030] Figure 7 A moving plate and clamp plate connection structure schematic diagram of the present application;

[0031] Figure 8 A Figure 5 A enlarged structure schematic diagram of the present application in A;

[0032] Figure 9 A Figure 5 A enlarged structure schematic diagram of the present application in B;

[0033] Figure 10 A auxiliary pressure element structure schematic diagram of the present application.

[0034] In the figure: 1, base layer; 2, optical film layer; 3, LCD display module; 4, touch TP module; 5, conductive grid assembly; 501, metal grid; 502, power connection column; 6, lead connection assembly; 601, limiting horizontal plate; 602, limiting side plate; 603, rotating drum; 604, internal groove; 605, positioning groove; 606, insertion groove; 607, compression power connection piece; 6071, clamping plate; 6072, clamping groove; 6073, power connection arc plate; 6074, contact; 6075, conductive sliding strip; 6076, moving plate; 6077, first spring; 6078, movable groove; 6079, movable rod; 60710, second spring; 608, auxiliary compression piece; 6081, pressure rod; 6082, rod groove; 6083, mounting frame; 6084, extrusion block; 6085, fixed box; 6086, communication groove; 6087, pressure plate; 6088, compression column; 6089, pressure plate; 60810, third spring; 60811, fourth spring; 60812, pressure block; 7, middle substrate; 8, first optical adhesive layer; 9, second optical adhesive layer; 10, transparent cover plate. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0036] By Figures 1-10 The present application relates to a wide-view LCD touch display screen, which comprises a touch TP module 4, the touch TP module 4 comprises two conductive grid assemblies 5 arranged above and below, a middle substrate 7 and a first optical adhesive layer 8 are sequentially arranged from top to bottom between the two conductive grid assemblies 5, and a lead connection assembly 6 is symmetrically installed between the two conductive grid assemblies 5.

[0037] The conductive grid assembly 5 comprises a metal grid 501, and power connection columns 502 are equidistantly installed on both sides of the metal grid 501.

[0038] The lead connection assembly 6 comprises two upper and lower limiting horizontal plates 601, the interior of the limiting horizontal plates 601 is provided with an interior slot 604, the same height two interior slots 604 are provided with a positioning slot 605 at equal intervals on the side close to each other, the side of the two upper and lower limiting horizontal plates 601 close to each other is provided with an insertion slot 606 at equal intervals, the insertion slot 606 is communicated with the positioning slot 605, the interior of the interior slot 604 is provided with a compression power connection piece 607 for clamping and fixing the butt joint electric column 502 and connecting electricity, the side of the two limiting horizontal plates 601 far away from each other is symmetrically provided with two rotating cylinders 603, two limiting side plates 602 are arranged between the two limiting horizontal plates 601, the two limiting side plates 602 respectively contact the side of the two limiting horizontal plates 601 far away from each other, the two ends of the limiting side plate 602 are symmetrically provided with a fixed shaft, the rotating cylinder 603 is rotationally connected with the fixed shaft, when the two upper and lower limiting horizontal plates 601 are in a horizontal state, the rotating cylinder 603 and the fixed shaft are fixed by a screw.

[0039] The compression power connection piece 607 comprises a clamping plate 6071 slidingly installed in the interior of the interior slot 604, the side close to the positioning slot 605 of the clamping plate 6071 is provided with a clamping slot 6072 at equal intervals, the clamping slot 6072 corresponds to the positioning slot 605 one by one, the inner wall of the clamping slot 6072 is provided with an electric arc plate 6073, the side far away from the positioning slot 605 of the clamping plate 6071 is provided with a moving plate 6076, the side far away from the clamping plate 6071 of the moving plate 6076 is symmetrically provided with a first spring 6077, one end of the first spring 6077 is fixedly connected with the inner wall of the interior slot 604, the interior of the interior slot 604 is provided with an auxiliary compression piece 608, the interior of the clamping plate 6071 is symmetrically provided with two movable slots 6078, the interior of the movable slot 6078 is movably provided with a movable rod 6079, one end of the movable rod 6079 penetrates to the side close to the moving plate 6076 of the clamping plate 6071, and one end of the movable rod 6079 is fixedly connected with the moving plate 6076, the side far away from the moving plate 6076 of the movable rod 6079 is fixedly provided with a second spring 60710, one end of the second spring 60710 is fixedly connected with the end inner wall of the movable slot 6078, after the limiting horizontal plate 601 rotates, the electric column 502 on the side of the metal grid 501 is inserted into the corresponding metal grid 501, the metal grid 501 is positioned, the subsequent sputtering is facilitated, at the same time, after the clamping plate 6071 and the moving plate 6076 move, the electric arc plate 6073 on the inner wall of the clamping slot 6072 is tightly attached to the outer wall of the electric column 502, the metal grid 501 is clamped and fixed, the sputtering stability is improved, the electric conductivity stability of the metal grid 501 is improved, the inner wall of the side far away from each other of the two interior slots 604 is provided with an electrically conductive sliding strip 6075, the clamping plate 6071 is provided with a contact 6074, the contact 6074 contacts with the electrically conductive sliding strip 6075, and the contact 6074 is electrically connected with each electric arc plate 6073 on the clamping plate 6071 through a lead wire, and the electrically conductive sliding strip 6075 is externally connected with a lead wire.

[0040] The auxiliary clamping component 608 includes a pressure rod 6081 fixedly installed on the side of the movable plate 6076 away from the clamping plate 6071. An internal groove 604 has a rod groove 6082 on the side near the limiting side plate 602. The pressure rod 6081 is provided on one side of the movable plate 6076. The end of the pressure rod 6081 passes through the rod groove 6082 to the outside of the limiting horizontal plate 601. When the limiting horizontal plate 601 rotates to a position perpendicular to the limiting side plate 602, the end of the pressure rod 6081 moves towards the clamping plate 6071 under the pressure of the limiting side plate 602, facilitating clamping and fixing of the clamping plate 6071 to the connecting post 502, and facilitating assembly. The compression rod 6081 is movably installed inside the rod groove 6082. The end of the compression rod 6081 is shaped like a hemispherical ball. Two fixing boxes 6085 are symmetrically arranged on both sides of the compression rod 6081. The fixing boxes 6085 are fixedly connected to the limiting horizontal plate 601. A compression plate 6087 is movably installed inside the fixing box 6085. A clamping column 6088 is symmetrically installed on the side of the upper and lower compression plates 6087 that are close to each other. The end of the clamping column 6088 extends to the outside of the limiting horizontal plate 601. A pressing plate 6089 is movably installed inside the fixing box 6085. The pressing plate 6089 is located on the compression plate 6087 away from the clamping column 6088. On one side, a third spring 60810 is fixedly installed between the pressure plate 6087 and the pressing plate 6089. A fourth spring 60811 is symmetrically installed on the side of the pressing plate 6089 away from the pressure plate 6087. One end of the fourth spring 60811 is fixedly connected to the inner wall of the end of the fixed box 6085. A pressure block 60812 is fixedly installed on the side of the pressing plate 6089 away from the pressure plate 6087. A connecting groove 6086 is provided on the fixed box 6085. The inner cavity of the fixed box 6085 is connected to the inner cavity of the inner groove 604 through the connecting groove 6086. A pressing block 6084 is provided on the inner side of the connecting groove 6086. Located on the side of the pressure block 60812 away from the pressure plate 6087, and with the inclined surface of the extrusion block 6084 in contact with the inclined surface of the pressure block 60812, a mounting bracket 6083 is installed between the two extrusion blocks 6084. The mounting bracket 6083 is fixedly connected to the pressure rod 6081. When the pressure rod 6081 moves toward the clamping plate 6071, it pushes the extrusion block 6084 to move synchronously, thereby causing the extrusion block 6084 to exert pressure on the pressure block 60812 toward the pressing column 6088. This causes the pressing columns 6088 on both the upper and lower sides to press the middle substrate 7 between the two metal meshes 501, improving installation stability.

[0041] The lower side of the touch TP module 4 is provided with an LCD display module 3, the lower side of the LCD display module 3 is provided with an optical film layer 2, the lower side of the optical film layer 2 is provided with a substrate layer 1, the upper side of the touch TP module 4 is provided with a second optical adhesive layer 9, the upper side of the second optical adhesive layer 9 is provided with a transparent cover plate 10, the second optical adhesive layer 9 and the LCD display module 3 are respectively installed with the upper and lower two metal grids 501 in a sputtering manner, the LCD display module 3 is composed of a plurality of first microstructures arranged at intervals and a hard coating layer, there is a gap between the two adjacent first microstructures, the longitudinal cross-sectional width of the first microstructure is arranged in a tapering manner from the light-in side of the optical film layer 2 to the light-out side, the hard coating layer covers the optical microstructure layer LCD display module 3 and fills the gap, the LCD touch display screen is at least one conductive layer of the touch TP module 4 formed on the surface of the optical film by sputtering or evaporation and the like, which can save at least one substrate and OCA adhesive layer, so as to provide a new structure with wide viewing angle effect and TP function, thereby reducing the thickness of the display screen without additional cost and process, and meeting the viewing needs of users at different angles.

[0042] Working principle: the upper and lower two metal grids 501 are sputtered on the second optical adhesive layer 9 and the hard coating layer of the LCD display module 3 respectively, wherein the metal grid 501 is arranged corresponding to the display touch area of the LCD touch display screen, the lead connection assembly 6 is arranged corresponding to the invalid area of the LCD touch display screen, the LCD display module 3 is composed of a plurality of first microstructures arranged at intervals and a hard coating layer, there is a gap between the two adjacent first microstructures, the longitudinal cross-sectional width of the first microstructure is arranged in a tapering manner from the light-in side of the substrate layer 1 to the light-out side, the hard coating layer covers the optical microstructure layer LCD display module 3 and fills the gap, in the first microstructure, the extension direction of the side wall in the first microstructure can be inclined relative to the film edge of the optical film according to the size of the applied LCD display module or LCD touch display video, the inclination angle is not limited here, which can be set according to the actual situation, which can be between 3°~20°, specifically 4°, 8°, 15°, 17°, etc.

[0043] In the assembling process, the middle substrate 7 and the first optical glue layer 8 are arranged between the upper and lower metal meshes 501, and then the two lead connection assemblies 6 are installed on the two sides of the two metal meshes 501 to assemble, the two limiting horizontal plates 601 on the limiting side plates 602 are rotated to the horizontal state, and then the upper and lower limiting horizontal plates 601 are moved to the sides away from each other of the two metal meshes 501, so that each electrical connecting column 502 on one side of the metal mesh 501 is inserted into the corresponding positioning groove 605, and in the rotating process of the limiting horizontal plate 601, the one end of the pressure rod 6081 is pressed by the limiting horizontal plate 601, so that the pressure rod 6081 moves towards the side of the positioning groove 605, the clamping plate 6071 is pushed to move towards the side of the positioning groove 605, the electrical connecting arc plate 6073 on the inner wall of the clamping groove 6072 is tightly attached to the outer wall of the electrical connecting column 502, and after the moving plate 6076 moves towards the side of the clamping plate 6071, the second spring 60710 is compressed, and under the elastic force of the second spring 60710, the electrical connecting column 502 is tightly fixed, the sputtering stability is improved, and the electrical stability is improved;

[0044] The contact 6074 is installed on the clamping plate 6071, the contact 6074 is in contact with the conductive sliding strip 6075 on the inner wall of the inner groove 604, the conductive sliding strip 6075 is externally connected with a wire, the contact 6074 is electrically connected with each electrical connecting arc plate 6073, and external electrical connection is facilitated;

[0045] When the pressure rod 6081 moves towards the side of the positioning groove 605, the extrusion block 6084 is driven to move towards the side of the fixed box 6085, the extrusion block 6084 is inserted into the communication groove 6086, pressure is generated on the pressure block 60812, the pressing plate 6089 moves towards the side of the pressure plate 6087, the third spring 60810 is compressed, and under the elastic force of the third spring 60810, the upper and lower pressure columns 6088 tightly fix the middle substrate 7 between the two metal meshes 501, and the assembling stability is improved.

[0046] It should be noted that in this document, the terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0047] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. A wide viewing angle LCD touch display screen, comprising a touch TP module (4), characterized in that: The touch TP module (4) comprises two upper and lower conductive grid components (5), a middle base material (7) and a first optical adhesive layer (8) are sequentially arranged from top to bottom between the two conductive grid components (5), and lead connection components (6) are symmetrically arranged between the two conductive grid components (5); The conductive grid component (5) comprises a metal grid (501), and power connection columns (502) are equidistantly arranged on both sides of the metal grid (501); The lead connection component (6) comprises two upper and lower limiting horizontal plates (601), an inner groove (604) is formed in the limiting horizontal plate (601), positioning grooves (605) are equidistantly formed on one side of the two inner grooves (604) close to each other, insertion grooves (606) are equidistantly formed on one side of the two limiting horizontal plates (601) close to each other, the insertion grooves (606) are communicated with the positioning grooves (605), and a compression power connection piece (607) for clamping and fixing the power connection columns (502) and connecting power is arranged in the inner groove (604); Limiting side plates (602) are arranged between the two limiting horizontal plates (601); The compression power connection piece (607) comprises a clamping plate (6071) slidably arranged in the inner groove (604), clamping grooves (6072) are equidistantly formed on one side of the clamping plate (6071) close to the positioning grooves (605), the clamping grooves (6072) correspond to the positioning grooves (605) one by one, power connection arc plates (6073) are arranged on the inner walls of the clamping grooves (6072), a moving plate (6076) is arranged on one side of the clamping plate (6071) away from the positioning grooves (605), first springs (6077) are symmetrically arranged on one side of the moving plate (6076) away from the clamping plate (6071), one end of the first spring (6077) is fixedly connected with the inner wall of the inner groove (604), and an auxiliary compression piece (608) is arranged in the inner groove (604).

2. The wide viewing angle LCD touch display screen of claim 1, wherein: Two rotating cylinders (603) are symmetrically arranged on one side of each of the limiting horizontal plates (601) away from each other, the two limiting side plates (602) are in contact with the sides of the limiting horizontal plates (601) away from each other, fixed shafts are symmetrically arranged at both ends of the limiting side plates (602), and the rotating cylinders (603) are rotationally connected with the fixed shafts; when the two limiting horizontal plates (601) are in a horizontal state, the rotating cylinders (603) and the fixed shafts are fixed by screws.

3. The wide-viewing-angle LCD touch display screen of claim 2, wherein: Two movable grooves (6078) are symmetrically formed in the clamping plate (6071), movable rods (6079) are movably arranged in the movable grooves (6078), one end of the movable rod (6079) penetrates to one side of the clamping plate (6071) close to the moving plate (6076), one end of the movable rod (6079) is fixedly connected with the moving plate (6076), a second spring (60710) is fixedly arranged on one side of the movable rod (6079) away from the moving plate (6076), and one end of the second spring (60710) is fixedly connected with the end inner wall of the movable groove (6078).

4. The wide-viewing-angle LCD touch display screen of claim 3, wherein: The inner wall of the upper and lower inner grooves (604) is provided with a conductive slide (6075) on the side away from each other, the clamping plate (6071) is provided with a contact (6074), the contact (6074) is in contact with the conductive slide (6075), and the contact (6074) is electrically connected with each arc plate (6073) on the clamping plate (6071) through a wire, and the conductive slide (6075) is externally connected with a wire.

5. The wide-viewing-angle LCD touch display screen of claim 4, wherein: The auxiliary pressing part (608) comprises a pressure receiving rod (6081) fixedly installed on the side of the moving plate (6076) away from the clamping plate (6071), a rod groove (6082) is formed on the side of the inner groove (604) close to the limiting side plate (602), the pressure receiving rod (6081) is movably installed in the rod groove (6082), and the end of the pressure receiving rod (6081) is provided in a semispherical shape.

6. The wide-viewing-angle LCD touch display screen of claim 5, wherein: The two sides of the pressure receiving rod (6081) are symmetrically provided with two fixed boxes (6085), the fixed boxes (6085) are fixedly connected with the limiting horizontal plate (601), the inside of the fixed box (6085) movably installs a pressure plate (6087), the two sides of the pressure plate (6087) are symmetrically installed on the side close to each other, the end of the pressure plate (6087) penetrates to the outside of the limiting horizontal plate (601), the inside of the fixed box (6085) movably installs a pressure plate (6089), the pressure plate (6089) is located on the side away from the pressure plate (6087), the third spring (60810) is fixedly installed between the pressure plate (6087) and the pressure plate (6089), the fourth spring (60811) is symmetrically installed on the side away from the pressure plate (6087), and one end of the fourth spring (60811) is fixedly connected with the end inner wall of the fixed box (6085).

7. The wide-viewing-angle LCD touch display screen of claim 6, wherein: The pressure plate (6089) is fixedly installed with a pressure receiving block (60812) on the side away from the pressure plate (6087), the fixed box (6085) is provided with a communication groove (6086), the inner cavity of the fixed box (6085) is communicated with the inner cavity of the inner groove (604) through the communication groove (6086), the inner side of the communication groove (6086) is provided with an extrusion block (6084), the extrusion block (6084) is located on the side away from the pressure plate (6087), and the inclined surface of the extrusion block (6084) is in contact with the inclined surface of the pressure receiving block (60812).

8. The wide-viewing-angle LCD touch display screen of claim 1, wherein: The lower side of the touch TP module (4) is provided with an LCD display module (3), the lower side of the LCD display module (3) is provided with an optical film layer (2), the lower side of the optical film layer (2) is provided with a substrate layer (1), the upper side of the touch TP module (4) is provided with a second optical adhesive layer (9), the upper side of the second optical adhesive layer (9) is provided with a transparent cover plate (10), and the second optical adhesive layer (9) and the LCD display module (3) are respectively installed with the upper and lower two metal grids (501) in a sputtering mode.

9. The wide-viewing-angle LCD touch display screen of claim 8, wherein: The LCD display module (3) is composed of a plurality of spaced first microstructures and a hard coating layer, there is a gap between the two adjacent first microstructures, the longitudinal cross-sectional width of the first microstructure is arranged in a tapering manner from the light entrance side of the optical film layer (2) to the light exit side, and the hard coating layer covers the optical microstructure layer LCD display module (3) and fills the gap.

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