Wide-viewing-angle liquid crystal display (LCD) touch display screen

Abstract

The invention discloses a wide-viewing-angle LCD (liquid crystal display) touch display screen, which solves the problems that raw materials such as base materials are needed and waste exists when the wide-viewing-angle LCD touch display screen is assembled in an adhesion mode, and comprises a touch TP (touch panel) module which comprises an upper conductive grid assembly and a lower conductive grid assembly, a middle base material and a first optical adhesive layer are sequentially arranged between the two conductive grid assemblies from top to bottom, lead connecting assemblies are symmetrically installed between the upper conductive grid assembly and the lower conductive grid assembly, each conductive grid assembly comprises a metal grid, power connection columns are installed on the two sides of each metal grid at equal intervals, and each lead connecting assembly comprises an upper limiting horizontal plate and a lower limiting horizontal plate. Internal grooves are formed in the limiting horizontal plate, and positioning grooves are formed in the sides, close to each other, of the two internal grooves at the same height at equal intervals; according to the invention, the upper metal grid and the lower metal grid are limited through the two limiting horizontal plates, and the middle base material is limited and pressed, so that the assembly stability is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of touch display screens, and in particular relates to an LCD touch display screen with a wide viewing angle. Background Art

[0002] Liquid crystal display is currently the most common flat panel display technology, and is widely used in various fields such as television, mobile phones, vehicles, industry and medicine. The principle of liquid crystal display is mainly based on the birefringence effect of liquid crystal molecules, which modulates the transmittance of polarized light to achieve light and dark display. The birefringence effect of liquid crystal molecules is related to the direction of the incident light. After the backlight module emits light to the liquid crystal box, the transmittance of polarized light is different due to the different optical path differences of the light. The transmittance of polarized light incident on the liquid crystal box in the vertical direction is extremely small (close to 0, called dark state), while the transmittance of polarized light incident on the liquid crystal box in the oblique direction is not 0, and light leakage occurs, resulting in a decrease in the contrast of the liquid crystal display device and a narrowing of the viewing angle, which cannot meet the user's usage requirements. The general touch TP module consists of two upper and lower metal grids, leads connected to the metal grids, and a middle substrate between the two metal grids. During the production process, each layer needs to be bonded together, but there are the following defects: Assembly by adhesion requires a large amount of raw materials such as substrates, which results in waste. At the same time, during the assembly process of the metal grid and the middle substrate, the positioning effect is poor, which affects the component molding. Summary of the Invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a wide-viewing angle LCD touch display screen, which effectively solves the problem that assembly by adhesion requires a large amount of raw materials such as substrates and is wasteful.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a wide-viewing angle LCD touch screen display, comprising 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 being disposed sequentially from top to bottom between the two conductive grid components, and a lead connection component being symmetrically installed between the upper and lower conductive grid components; The conductive grid assembly includes a metal grid, and power posts are installed at equal distances on both sides of the metal grid; The lead connection assembly includes two upper and lower limiting horizontal plates, and an internal groove is opened inside the limiting horizontal plate. The two internal grooves at the same height are equidistantly provided with positioning grooves on the side close to each other. The upper and lower limiting horizontal plates are equidistantly provided with insertion grooves on the side close to each other. The insertion grooves are connected to the positioning grooves, and a clamping connection part is installed inside the internal groove for clamping and fixing the docking pole and connecting the electricity.

[0005] Preferably, two rotating drums are symmetrically installed on the sides of the limiting horizontal plates away from each other, and a limiting side plate is arranged between the two limiting horizontal plates. The two limiting side plates are respectively in contact with the sides of the limiting horizontal plates away from each other. Fixed shafts are symmetrically installed at both ends of the limiting side plates, and the rotating drum is rotatably connected to the fixed shaft. When the upper and lower limiting horizontal plates are in a horizontal state, the rotating drum and the fixed shaft are fixed by screws.

[0006] Preferably, the clamping connection part includes a clamping plate slidably installed inside the internal groove, and clamping grooves are equidistantly provided on the side of the clamping plate close to the positioning groove, and the clamping grooves correspond one-to-one to the positioning grooves. An arc connection plate is installed on the inner wall of the clamping groove, and a movable plate is provided on the side of the clamping plate away from the positioning groove. A first spring is symmetrically installed on the side of the movable plate away from the clamping plate, and one end of the first spring is fixedly connected to the inner wall of the internal groove, and an auxiliary clamping part is installed inside the internal groove.

[0007] Preferably, two movable grooves are symmetrically opened inside the splint, and a movable rod is movably installed inside the movable groove. One end of the movable rod passes through the side of the splint close to the movable plate, and one end of the movable rod is fixedly connected to the movable plate. A second spring is fixedly installed on the side of the movable rod away from the movable plate, and one end of the second spring is fixedly connected to the inner wall of the end of the movable groove.

[0008] Preferably, conductive sliding bars are installed on the inner walls of the upper and lower internal grooves away from each other, and contacts are installed on the splint. The contacts are in contact with the conductive sliding bars, and the contacts are electrically connected to each arc-connecting plate on the splint through wires, and the conductive sliding bars are externally connected to the wires.

[0009] Preferably, the auxiliary pressing member includes a pressure rod fixedly mounted on the side of the movable plate away from the clamping plate, a rod groove is opened on the side of the internal groove close to the limiting side plate, the pressure rod is movably mounted inside the rod groove, and the end of the pressure rod is set to be semi-spherical.

[0010] Preferably, two fixed boxes are symmetrically provided on both sides of the pressure rod, the fixed boxes are fixedly connected to the limiting horizontal plate, a pressure plate is movably installed inside the fixed box, and a clamping column is symmetrically installed on the side where the upper and lower pressure plates are close to each other, and the end of the clamping column passes through the outside of the limiting horizontal plate, and a pressure plate is movably installed inside the fixed box, and the pressure plate is located on the side of the pressure plate away from the clamping column. A third spring is fixedly installed between the pressure plate and the pressure plate, and a fourth spring is symmetrically installed on the side of the pressure plate away from the pressure plate, and one end of the fourth spring is fixedly connected to the inner wall of the end of the fixed box.

[0011] Preferably, a pressure block is fixedly installed on the side of the pressure plate away from the pressure plate, a connecting groove is provided on the fixed box, the inner cavity of the fixed box is connected with the inner cavity of the internal groove through the connecting groove, and an extrusion block is provided on the inner side of the connecting groove. The extrusion block is located on the side of the pressure block away from the pressure plate, and the inclined surface of the extrusion block is in contact with the inclined surface of the pressure block. A mounting frame is installed between the two extrusion blocks, and the mounting frame is fixedly connected to the pressure rod.

[0012] Preferably, an LCD display module is arranged below the touch TP module, an optical film layer is arranged below the LCD display module, a base layer is arranged below the optical film layer, a second optical adhesive layer is arranged above the touch TP module, a transparent cover plate is arranged above the second optical adhesive layer, and the second optical adhesive layer and the LCD display module are respectively installed with the upper and lower metal grids by sputtering.

[0013] Preferably, the LCD display module is composed of a plurality of spaced-apart first microstructures and a hard coating layer, with a gap between two adjacent first microstructures. The longitudinal cross-sectional width of the first microstructure is gradually reduced from the light incident side toward the light output side of the optical film layer, and the hard coating layer covers the optical microstructure layer LCD display module and fills the gap.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1) In operation, the LCD touch screen is configured to form at least one conductive layer of the touch TP module directly on the surface of the optical film through processes such as sputtering or evaporation. This can save at least one substrate and OCA adhesive layer, providing a new structure that combines wide viewing angle effect and TP function. This reduces the thickness of the display without adding additional costs and processes, and adapts to meet users' viewing needs at different angles. 2) During operation, the limit horizontal plate is rotated to insert the electric pole on the side of the metal grid into the corresponding metal grid, positioning the metal grid for subsequent sputtering. At the same time, the clamping plate and the movable plate move so that the arc receiving plate on the inner wall of the clamping groove is in close contact with the outer wall of the electric pole, clamping and fixing the metal grid, improving the sputtering stability and the conductive stability of the metal grid. 3) During operation, a compression rod is provided on one side of the movable plate. The end of the compression rod passes through the rod slot to the outside of the limit horizontal plate. When the limit horizontal plate rotates to a perpendicular state with the limit side plate, the end of the compression rod is moved toward the side of the clamping plate under the pressure of the limit side plate, making it easier for the clamping plate to dock with the electric column for clamping and fixing, thus facilitating assembly; 4) During operation, when the pressure rod moves toward one side of the splint, the extrusion block is pushed to move synchronously, and then the extrusion block exerts pressure on the pressure block toward the side of the clamping column, so that the clamping columns on the upper and lower sides compress the middle substrate between the two metal grids, thereby improving the installation stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached figure: Figure 1 A schematic structural diagram of a wide-viewing-angle LCD touch display screen according to the present invention; Figure 2 This is a schematic diagram of the structure of the touch TP module of the present invention; Figure 3 It is a schematic structural diagram of the conductive grid assembly of the present invention; Figure 4 This is a schematic structural diagram of the lead connection assembly of the present invention; Figure 5 This is a schematic diagram of the internal structure of the limit horizontal plate of the present invention; Figure 6 It is a schematic diagram of the splint structure of the present invention; Figure 7 It is a schematic diagram of the connection structure between the movable plate and the clamping plate of the present invention; Figure 8 For the present invention Figure 5 A schematic diagram of the enlarged structure at center A; Figure 9 For the present invention Figure 5 A schematic diagram of the structure is shown with an enlarged view at B in the middle; Figure 10 It is a schematic structural diagram of the auxiliary pressing member of the present invention.

[0017] 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, connection column; 6, lead connection assembly; 601, limit horizontal plate; 602, limit side plate; 603, rotating drum; 604, internal groove; 605, positioning groove; 606, insertion groove; 607, pressing connection piece; 6071, clamping plate; 6072, clamping groove; 6073, arc connection plate; 6074, contact; 6075, conductive slider; 6076, moving plate; 6077, First spring; 6078, movable groove; 6079, movable rod; 60710, second spring; 608, auxiliary pressing member; 6081, pressure rod; 6082, rod groove; 6083, mounting frame; 6084, extrusion block; 6085, fixing box; 6086, connecting groove; 6087, pressure plate; 6088, pressure column; 6089, pressing 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. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] Depend on Figure 1-10 The present invention relates to a wide-viewing angle LCD touch display screen, comprising a touch TP module 4, wherein the touch TP module 4 comprises two upper and lower conductive grid components 5, a middle substrate 7 and a first optical adhesive layer 8 are sequentially arranged between the two conductive grid components 5 from top to bottom, and a lead connection component 6 is symmetrically installed between the upper and lower conductive grid components 5.

[0020] The conductive grid assembly 5 includes a metal grid 501 , and power posts 502 are equidistantly installed on both sides of the metal grid 501 .

[0021] The lead connection assembly 6 includes two upper and lower limit horizontal plates 601, and an internal groove 604 is opened inside the limit horizontal plate 601. The two internal grooves 604 at the same height are equidistantly opened on the side close to each other, and the upper and lower limit horizontal plates 601 are equidistantly opened on the side close to each other, and the insertion groove 606 is connected to the positioning groove 605. The interior of the internal groove 604 is installed with a clamping connection part 607 for clamping and connecting the electric column 502. Two rotating cylinders 603 are symmetrically installed on the side away from each other of the limit horizontal plates 601 on both sides. A limit side plate 602 is set between the two limit horizontal plates 601. The two limit side plates 602 are respectively in contact with the side away from each other of the limit horizontal plates 601 on both sides. Fixed shafts are symmetrically installed at both ends of the limit side plates 602. The rotating cylinder 603 is rotatably connected to the fixed shaft. When the upper and lower limit horizontal plates 601 are in a horizontal state, the rotating cylinder 603 and the fixed shaft are fixed by screws.

[0022] The pressing and connecting member 607 includes a clamping plate 6071 slidably mounted inside the internal groove 604, and a clamping groove 6072 is equidistantly provided on the side of the clamping plate 6071 close to the positioning groove 605. The clamping groove 6072 corresponds to the positioning groove 605 one by one. An arc receiving plate 6073 is installed on the inner wall of the clamping groove 6072. A movable plate 6076 is provided on the side of the clamping plate 6071 away from the positioning groove 605. A first spring 6077 is symmetrically installed on the side of the movable plate 6076 away from the clamping plate 6071. One end of the spring 6077 is fixedly connected to the inner wall of the internal groove 604, and an auxiliary pressing member 608 is installed inside the internal groove 604. Two movable grooves 6078 are symmetrically opened inside the clamping plate 6071. A movable rod 6079 is movably installed inside the movable groove 6078. One end of the movable rod 6079 passes through the side of the clamping plate 6071 close to the movable plate 6076, and one end of the movable rod 6079 is fixedly connected to the movable plate 6076. The movable rod 6079 is away from the movable plate 6076. A second spring 60710 is fixedly installed on one side of the movable groove 6078. One end of the second spring 60710 is fixedly connected to the inner wall of the end of the movable groove 6078. After the limit horizontal plate 601 rotates, the electric pole 502 on the side of the metal grid 501 is inserted into the corresponding metal grid 501, positioning the metal grid 501 to facilitate subsequent sputtering. At the same time, after the clamping plate 6071 and the movable plate 6076 move, the arc receiving plate 6073 on the inner wall of the clamping groove 6072 is connected to the electric pole 502. 2 outer wall is tightly attached to clamp and fix the metal grid 501, thereby improving the sputtering stability and the conductive stability of the metal grid 501. A conductive sliding bar 6075 is installed on the inner wall of the upper and lower internal grooves 604 on the side away from each other. A contact 6074 is installed on the clamping plate 6071. The contact 6074 contacts the conductive sliding bar 6075, and the contact 6074 is electrically connected to each arc receiving plate 6073 on the clamping plate 6071 through a wire. The conductive sliding bar 6075 is externally connected to the wire.

[0023] The auxiliary pressing member 608 includes a compression rod 6081 fixedly mounted on the side of the movable plate 6076 away from the clamping plate 6071, a rod groove 6082 is opened on the side of the internal groove 604 close to the limiting side plate 602, and a compression rod 6081 is provided on one side of the movable plate 6076. The end of the compression rod 6081 passes through the rod groove 6082 to the outside of the limiting horizontal plate 601. When the limiting horizontal plate 601 is rotated to a vertical state with the limiting side plate 602, the end of the compression rod 6081 is moved toward the side of the clamping plate 6071 by the pressure of the limiting side plate 602, so that the clamping plate 6071 can be connected to the electric column 502 for clamping and fixing, which is convenient for assembly. 6081 is movably installed inside the rod groove 6082, the end of the pressure rod 6081 is set to a semi-spherical shape, and two fixed boxes 6085 are symmetrically arranged on both sides of the pressure rod 6081. The fixed box 6085 is fixedly connected to the limit horizontal plate 601. A pressure plate 6087 is movably installed inside the fixed box 6085. The pressure plates 6087 on the upper and lower sides are symmetrically installed on the side close to each other with a clamping column 6088. The end of the clamping column 6088 passes through the outside of the limit horizontal plate 601. A pressing plate 6089 is movably installed inside the fixed box 6085. The pressing plate 6089 is located on the side of the pressure 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 pressure plate 6089, and a fourth spring 60811 is symmetrically installed on the side of the pressure 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 pressure plate 6089 away from the pressure plate 6087. A connecting groove 6086 is opened on the fixed box 6085. The inner cavity of the fixed box 6085 is connected to the inner cavity of the internal groove 604 through the connecting groove 6086. An extrusion block 6084 is provided on the inner side of the connecting groove 6086. The extrusion block 6084 The pressure block 60812 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 block 60812. A mounting frame 6083 is installed between the two extrusion blocks 6084. The mounting frame 6083 is fixedly connected to the pressure rod 6081. When the pressure rod 6081 moves toward the side of the splint 6071, it pushes the extrusion block 6084 to move synchronously, and then the extrusion block 6084 generates pressure on the pressure block 60812 toward the side of the clamping column 6088, so that the clamping columns 6088 on the upper and lower sides compress the middle substrate 7 between the two metal grids 501, thereby improving the installation stability.

[0024] An LCD display module 3 is provided below the touch TP module 4, an optical film layer 2 is provided below the LCD display module 3, a base layer 1 is provided below the optical film layer 2, a second optical adhesive layer 9 is provided above the touch TP module 4, a transparent cover plate 10 is provided above the second optical adhesive layer 9, the second optical adhesive layer 9 and the LCD display module 3 are respectively mounted on the upper and lower metal grids 501 by sputtering, the LCD display module 3 is composed of a plurality of first microstructures arranged at intervals and a hard coating, a gap is provided between two adjacent first microstructures, and the longitudinal section of the first microstructure is substantially the same as that of the first microstructure. The surface width is gradually reduced from the light-entering side of the optical film layer 2 toward the light-emitting side. The hard coating covers the optical microstructure layer LCD display module 3 and fills the gap. The LCD touch screen is formed by directly forming at least one conductive layer of the touch TP module 4 on the surface of the optical film through processes such as sputtering or evaporation. It can save at least one substrate and an OCA adhesive layer, thereby providing a new structure with both wide viewing angle effect and TP function as a whole, thereby reducing the thickness of the display without increasing the cost and process, and adapting to meet the viewing needs of users at different angles.

[0025] Working principle: The upper and lower metal grids 501 are sputtered on the second optical adhesive layer 9 and the hard coating of the LCD display module 3 respectively, wherein the metal grid 501 corresponds to the display touch area of the LCD touch screen, and the lead connection component 6 corresponds to the invalid area of the LCD touch screen. The LCD display module 3 is composed of a plurality of first microstructures and a hard coating arranged at intervals. There is a gap between two adjacent first microstructures. The longitudinal cross-sectional width of the first microstructure is gradually reduced from the light incident side of the base layer 1 toward the light output side. The hard coating 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 tilted relative to the film edge of the optical film according to the size of the LCD display module or LCD touch display video used. The tilt angle is not limited here and can be set according to actual conditions. It can be between 3° and 20°, and specifically can be 4°, 8°, 15°, 17°, etc. During the assembly process, the middle substrate 7 and the first optical adhesive layer 8 are placed between the upper and lower metal grids 501, and then two lead connection components 6 are installed on both sides of the two metal grids 501 for assembly. The two limit horizontal plates 601 on the limit side plates 602 are rotated to a horizontal state until the upper and lower limit horizontal plates 601 move to the side where the two metal grids 501 are away from each other, so that each power connection post 502 on one side of the metal grid 501 is respectively inserted into the corresponding positioning groove 605. During the rotation of the limit horizontal plate 601, The end of the pressure rod 6081 is subjected to pressure from the limiting horizontal plate 601, causing the pressure rod 6081 to move toward the positioning groove 605, pushing the clamping plate 6071 toward the positioning groove 605, so that the arc connecting plate 6073 on the inner wall of the clamping groove 6072 is in close contact with the outer wall of the connecting post 502. After the movable plate 6076 moves toward the clamping plate 6071, the second spring 60710 is compressed. Under the elastic force of the second spring 60710, the connecting post 502 is pressed and fixed, thereby improving the sputtering stability and the conductive stability. Contacts 6074 are mounted on the clamping plate 6071. The contacts 6074 contact the conductive sliders 6075 on the inner wall of the inner groove 604. The conductive sliders 6075 are externally connected to wires, and the contacts 6074 are electrically connected to the arc connection plates 6073, facilitating external power connection. When the pressure rod 6081 moves toward the positioning groove 605, it drives the extrusion block 6084 to move toward the fixing box 6085, so that the extrusion block 6084 is inserted into the connecting groove 6086, and pressure is generated on the pressure block 60812, so that the pressing plate 6089 moves toward the pressure plate 6087, so that the third spring 60810 is compressed. Under the elastic force of the third spring 60810, the clamping columns 6088 on the upper and lower sides clamp and fix the middle substrate 7 between the two metal grids 501, thereby improving the assembly stability.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended 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 substrate (7) and a first optical adhesive layer (8) are sequentially arranged between the two conductive grid components (5) from top to bottom, and a lead connection component (6) is symmetrically installed between the upper and lower conductive grid components (5); The conductive grid assembly (5) comprises a metal grid (501), and power connection posts (502) are equidistantly installed on both sides of the metal grid (501); The lead connection assembly (6) includes two upper and lower limiting horizontal plates (601), the limiting horizontal plates (601) are provided with internal grooves (604) inside, and the two internal grooves (604) at the same height are provided with positioning grooves (605) at equal distances on the sides close to each other, and the upper and lower limiting horizontal plates (601) are provided with insertion grooves (606) at equal distances on the sides close to each other, and the insertion grooves (606) are connected to the positioning grooves (605), and the internal grooves (604) are provided with a pressing connection piece (607) for clamping and fixing the electric pole (502) and connecting electricity.

2. The wide-viewing-angle LCD touch display according to claim 1, characterized in that: Two rotating drums (603) are symmetrically installed on the sides of the limiting horizontal plates (601) away from each other, and a limiting side plate (602) is arranged between the two limiting horizontal plates (601). The two limiting side plates (602) are respectively in contact with the sides of the limiting horizontal plates (601) away from each other. Fixed shafts are symmetrically installed at both ends of the limiting side plates (602). The rotating drum (603) is rotatably connected to the fixed shaft. When the upper and lower limiting horizontal plates (601) are in a horizontal state, the rotating drum (603) and the fixed shaft are fixed by screws.

3. The wide-viewing-angle LCD touch display according to claim 1, characterized in that: The clamping and connecting member (607) includes a clamping plate (6071) slidably mounted inside the internal groove (604); clamping grooves (6072) are equidistantly provided on a side of the clamping plate (6071) close to the positioning groove (605); the clamping grooves (6072) correspond one-to-one with the positioning groove (605); an arc connecting plate (6073) is mounted on the inner wall of the clamping groove (6072); a movable plate (6076) is provided on a side of the clamping plate (6071) away from the positioning groove (605); a first spring (6077) is symmetrically mounted on a side of the movable plate (6076) away from the clamping plate (6071); one end of the first spring (6077) is fixedly connected to the inner wall of the internal groove (604); and an auxiliary clamping member (608) is mounted inside the internal groove (604).

4. The wide-viewing-angle LCD touch display according to claim 3, characterized in that: Two movable grooves (6078) are symmetrically provided inside the splint (6071), and a movable rod (6079) is movably installed inside the movable groove (6078). One end of the movable rod (6079) extends through a side of the splint (6071) close to the movable plate (6076), and one end of the movable rod (6079) is fixedly connected to the movable plate (6076). A second spring (60710) is fixedly installed on a side of the movable rod (6079) away from the movable plate (6076), and one end of the second spring (60710) is fixedly connected to the inner wall of the end of the movable groove (6078).

5. The wide-viewing-angle LCD touch display according to claim 3, characterized in that: Conductive slides (6075) are installed on the inner walls of the upper and lower internal grooves (604) away from each other, and contacts (6074) are installed on the clamping plate (6071). The contacts (6074) are in contact with the conductive slides (6075), and the contacts (6074) are electrically connected to each arc-connecting plate (6073) on the clamping plate (6071) through a wire, and the conductive slides (6075) are externally connected to the wire.

6. The wide-viewing-angle LCD touch display according to claim 3, characterized in that: The auxiliary pressing member (608) includes a pressure rod (6081) fixedly mounted on the side of the movable plate (6076) away from the clamping plate (6071), a rod groove (6082) is provided on the side of the internal groove (604) close to the limiting side plate (602), the pressure rod (6081) is movably mounted inside the rod groove (6082), and the end of the pressure rod (6081) is configured to be semi-spherical.

7. The wide-viewing-angle LCD touch display according to claim 6, characterized in that: Two fixed boxes (6085) are symmetrically arranged on both sides of the pressure rod (6081). The fixed boxes (6085) are fixedly connected to the limit horizontal plate (601). A pressure plate (6087) is movably installed inside the fixed box (6085). The pressure plates (6087) on the upper and lower sides are symmetrically installed on the side close to each other with a compression column (6088). The end of the compression column (6088) passes through the outside of the limit horizontal plate (601). The interior of the fixed box (6085) is movably installed. A pressure plate (6089) is movably installed, and the pressure plate (6089) is located on the side of the pressure plate (6087) away from the clamping column (6088). A third spring (60810) is fixedly installed between the pressure plate (6087) and the pressure plate (6089). A fourth spring (60811) is symmetrically installed on the side of the pressure 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).

8. The wide-viewing-angle LCD touch display according to claim 7, characterized in that: A pressure block (60812) is fixedly installed on the side of the pressure plate (6089) away from the pressure plate (6087), a connecting groove (6086) is opened on the fixed box (6085), the inner cavity of the fixed box (6085) is connected with the inner cavity of the internal groove (604) through the connecting groove (6086), and an extrusion block (6084) is provided on the inner side of the connecting groove (6086). The extrusion block (6084) is located on the side of the pressure block (60812) 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 block (60812). A mounting frame (6083) is installed between the two extrusion blocks (6084), and the mounting frame (6083) is fixedly connected to the pressure rod (6081).

9. The wide-viewing-angle LCD touch display according to claim 1, characterized in that: An LCD display module (3) is provided below the touch TP module (4), an optical film layer (2) is provided below the LCD display module (3), a base layer (1) is provided below the optical film layer (2), a second optical adhesive layer (9) is provided above the touch TP module (4), a transparent cover plate (10) is provided above the second optical adhesive layer (9), and the second optical adhesive layer (9) and the LCD display module (3) are respectively mounted on upper and lower metal grids (501) by sputtering.

10. The wide-viewing-angle LCD touch display screen according to claim 9, characterized in that: The LCD display module (3) is composed of a plurality of first microstructures arranged at intervals and a hard coating layer, wherein a gap is provided between two adjacent first microstructures, and the longitudinal cross-sectional width of the first microstructure is gradually reduced from the light incident side toward the light emitting side of the optical film layer (2), and the hard coating layer covers the optical microstructure layer LCD display module (3) and fills the gap.

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