A liquid crystal screen with a high refractive index

Abstract

The present invention discloses a liquid crystal screen with a high refractive index, which relates to the technical field of light guide plates. The liquid crystal screen comprises a liquid crystal panel, an upper protective film, a cross-prism film, a diffuser, a light guide, and a low-reflection plate. A mounting plate is slidably mounted on the liquid crystal panel, a slot is provided at the bottom of the mounting plate, a mounting plate is rotatably mounted on the mounting plate, and a mounting device for fixing the display screen assembly is provided within the mounting plate. The mounting device comprises a clamping mechanism, a transmission mechanism, a limiting mechanism, and a protective mechanism. The clamping mechanism comprises a clamping plate, a spring A, and a vertical plate. The clamping plate is fixed to one end of the spring A, and the vertical plate is fixed within the slot provided in the mounting plate. The liquid crystal screen with a high refractive index can ensure that the mounting plate prevents debonding of the adhesive layer during installation of the entire display screen assembly through the movable mounting plate, thereby increasing the service life of the entire display screen assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of light guide plates, in particular to a liquid crystal screen with a high refractive index. Background Art

[0002] Light guide plates (LGPs) are constructed from optical-grade acrylic / PC sheets. Light guide points are printed on the bottom surface of the optical-grade acrylic sheet using laser engraving, V-shaped cross-grid engraving, and UV screen printing, using a high-tech material with an extremely high refractive index and no light absorption. The optical-grade acrylic sheet absorbs the light from the lamp, where it remains on the surface. When the light strikes each light guide point, the reflected light diffuses in all directions, disrupting the reflection conditions and exiting from the front of the LGP. The varying density and size of the light guide points ensures uniform illumination from the LGP. The reflective sheet is used to reflect light from the bottom surface back into the LGP, improving light efficiency. For a given area, the light efficiency is high and the power consumption is low. Single-sided microstructure array LGPs are typically manufactured using an extrusion process.

[0003] In the prior art, the light guide plate is usually adhered to the display screen assembly with an adhesive. When used in hot and dusty areas, the adhesive may debond after long-term use due to the influence of high temperature and dust, causing the light guide plate and the display screen assembly to debond, thus affecting the use of the display screen. In view of this, we propose a liquid crystal screen with a high refractive index. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the shortcomings of the prior art, the present invention provides a liquid crystal screen with a high refractive index, which solves the problems raised by the above-mentioned background technology.

[0006] (2) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a liquid crystal screen with a high refractive index, including a liquid crystal panel, an upper protective film, a cross prism film, a diffuser, a light guide and a low-reflection sheet, a mounting plate is slidably installed on the liquid crystal panel, an empty groove is provided at the bottom of the mounting plate, a mounting plate is rotatably installed on the mounting plate, a groove is provided on the mounting plate, a cross bar is fixed in the groove of the mounting plate, a spring C is sleeved on the cross bar, a fixing plate is slidably installed on the cross bar, an installation device for fixing the display screen assembly is provided in the mounting plate, and the installation device includes a clamping mechanism, a transmission mechanism, a limiting mechanism and a protection mechanism.

[0008] Preferably, the clamping mechanism includes a clamping plate, a spring A and a vertical plate, the clamping plate is fixed to one end of the spring A, the other end of the spring A is fixed to the vertical plate, and the vertical plate is fixed in a hollow groove opened in the mounting sleeve.

[0009] Preferably, the transmission mechanism includes a bracket, a slider, a sliding rod and a rotating rod, one end of the bracket is hinged to the splint, the other end of the bracket is hinged to the surface of the slider, the slider is slidably installed in the mounting sleeve, a rotating rod is slidably installed in the slider, the rotating rod is rotatably installed in the mounting sleeve, an arc-shaped sliding groove is provided on the surface of the rotating rod, a sliding rod is slidably installed in the arc-shaped sliding groove provided on the rotating rod, the sliding rod is fixed on the slider, and rectangular slots are provided in a circular array on the rotating rod.

[0010] Preferably, the limiting mechanism includes a gear, a limiting rod, a rectangular rod and a movable plate. The gear is rotatably installed in the mounting sleeve and is connected to the rotating shaft of the mounting plate through a transmission shaft. The limiting rod is slidably inserted in the tooth gap of the gear. The limiting rod is fixed on the movable plate. A rectangular rod is fixed on the movable plate. The rectangular rod is slidably inserted in the rectangular slot of the rotating rod.

[0011] Preferably, a groove is provided on the splint.

[0012] Preferably, the protection mechanism includes a rubber strip, a slide plate and a spring B, the rubber strip is fixed to the slide plate, the slide plate is slidably installed in the clamping plate, the slide plate is fixed to one end of the spring B, and the other end of the spring B is fixed to the clamping plate.

[0013] Preferably, the rotating rod includes an arc gear A, an arc gear B and a cooling fan, the arc gear A is fixed on the rotating rod, the arc gear A is engaged with the arc gear B, and the arc gear B and the cooling fan are both rotatably mounted on the mounting sleeve through a transmission shaft.

[0014] Preferably, a groove is provided on the installation sleeve, a convex block is slidably inserted into the groove of the installation sleeve, and the convex block is fixed on the movable plate.

[0015] Preferably, a slope is provided on the side wall of the bottom of the splint.

[0016] (3) Beneficial effects

[0017] The present invention provides a liquid crystal screen with a high refractive index. It has the following beneficial effects:

[0018] (1) The liquid crystal screen with a high refractive index can be installed through a movable cover plate, which can prevent the adhesive layer from debonding when the entire display screen assembly is installed, thereby increasing the service life of the entire display screen assembly.

[0019] (2) The installation device provided in the movable cover of the liquid crystal screen with a high refractive index can make the installation easier and can adapt to housings of different structures, thereby making the installation easier and improving the installation efficiency of the entire device.

[0020] (3) The splints provided in the mounting device of the liquid crystal screen with a high refractive index can adapt to display screen assemblies of different thicknesses, thereby ensuring that the display screen assembly is protected when subjected to shock during use, thereby increasing the service life of the display screen assembly.

[0021] (4) The transmission mechanism provided in the installation device of the liquid crystal screen with a high refractive index can dissipate heat to the display screen assembly when the splint moves, thereby increasing the service life of the display screen assembly when used in a high temperature environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0023] Figure 2 This is a structural diagram of the light guide plate and the liquid crystal panel of the present invention;

[0024] Figure 3 This is a schematic structural diagram of a cross-section of the installation sleeve of the present invention;

[0025] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure of part A;

[0026] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the structure of part B;

[0027] Figure 6 It is a structural schematic diagram of the protection mechanism and the splint of the present invention;

[0028] Figure 7 It is a structural schematic diagram of the rotating rod of the present invention;

[0029] Figure 8 This is a structural schematic diagram of the positional relationship between the mounting plate and the fixing plate of the present invention.

[0030] In the figure: 1. LCD panel; 2. Upper protective film; 3. Cross prism film; 4. Diffuser; 5. Light guide; 6. Low-reflection sheet; 7. Mounting plate; 8. Mounting plate; 9. Mounting device; 91. Clamp; 92. Spring A; 93. Vertical plate; 94. Bracket; 95. Slider; 96. Slide bar; 97. Rotating rod; 971. Arc gear A; 972. Arc gear B; 973. Cooling fan; 98. Gear; 99. Limit rod; 910. Rectangular rod; 911. Movable plate; 912. Rubber strip; 913. Slide plate; 914. Spring B; 10. Cross bar; 11. Spring C; 12. Fixed plate; 13. Bump. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] See also Figures 1 to 8 The present invention provides a technical solution: a liquid crystal screen with a high refractive index, comprising a liquid crystal panel 1, an upper protective film 2, a cross prism film 3, a diffuser 4, a light guide 5 and a low-reflection sheet 6. The liquid crystal panel 1, the upper protective film 2, the cross prism film 3, the diffuser 4, the light guide 5 and the low-reflection sheet 6 are all display screen components in the display screen. Ordinary light guides are usually designed with circular dots, while the light guide 5 set in the present device is designed with pagoda-shaped dots, which greatly improves the refractive index. A mounting sleeve 7 is slidably installed on the liquid crystal panel 1, and an empty groove is provided at the bottom of the mounting sleeve 7. A mounting plate 8 is rotatably installed on the mounting sleeve 7, and a groove is provided on the mounting plate 8. A cross bar 10 is fixed in the groove of the mounting plate 8, and a spring C11 is sleeved on the cross bar 10. A fixing plate 12 is slidably installed on the cross bar 10. A mounting device 9 for fixing the display screen assembly is provided in the mounting sleeve 7. The mounting device 9 includes a clamping mechanism, a transmission mechanism, a limiting mechanism and a protection mechanism. A threaded hole is provided on the fixing plate 12. The entire display screen assembly is fixed through the threaded hole provided on the fixing plate 12. At the same time, a buffering function is provided for the entire display screen assembly, thereby improving the service life of the display screen assembly and ensuring that the mounting sleeve 7 can prevent the adhesive layer from debonding when the entire display screen assembly is installed, thereby improving the service life of the entire display screen assembly.

[0033] In this embodiment, the clamping mechanism includes a clamping plate 91, a spring A92 and a vertical plate 93. The clamping plate 91 is fixed to one end of the spring A92, and the other end of the spring A92 is fixed to the vertical plate 93. The vertical plate 93 is fixed in the empty groove opened in the installation sleeve 7. The side wall at the bottom of the clamping plate 91 is provided with an inclined surface, and a groove is provided on the clamping plate 91. When the display screen assembly is installed, after the display screen assembly is inserted into the installation sleeve 7, the display screen assembly squeezes the clamping plate 91. After being squeezed, the clamping plate 91 will separate to both sides, and the display screen assembly is pre-clamped by the spring A92 to prevent the display screen assembly from falling off before it is fixed, thereby improving the installation efficiency of the display screen assembly.

[0034] In this embodiment, the transmission mechanism includes a bracket 94, a slider 95, a slide rod 96 and a rotating rod 97. One end of the bracket 94 is hinged to the splint 91, and the other end of the bracket 94 is hinged to the surface of the slider 95. The slider 95 is slidably installed in the installation sleeve 7. A rotating rod 97 is slidably installed in the slider 95. The rotating rod 97 is rotatably installed in the installation sleeve 7. An arc-shaped slide groove is provided on the surface of the rotating rod 97. A slide rod 96 is slidably installed in the arc-shaped slide groove provided on the rotating rod 97. The slide rod 96 is fixed on the slider 95. A rectangular slot is provided in a circular array on the rotating rod 97. The rotating rod 97 includes an arc gear A971, an arc gear B972 and a cooling fan 973. The arc gear A971 is fixed on the rotating rod 97. The arc gear A971 is meshed with the arc gear B972. The arc gear B972 and the cooling fan 973 is rotatably installed on the mounting sleeve 7 through the transmission shaft. When the splint 91 is squeezed by the display screen assembly and separated to both sides, the bracket 94 drives the slider 95 to separate to both sides. When the slider 95 separates to both sides, it drives the rotating rod 97 to rotate through the slide bar 96. The rotating rod 97 drives the arc gear A971 to rotate. After the arc gear A971 rotates through the arc gear B972, it drives the cooling fan 973 to rotate through the transmission shaft. After the cooling fan 973 rotates, it dissipates heat for the display screen assembly, thereby increasing the service life of the display screen assembly when used in a higher temperature environment. At the same time, the splint 91 can adapt to display screen assemblies of different thicknesses, ensuring that the display screen assembly is protected when it is subjected to vibration during use, thereby increasing the service life of the display screen assembly.

[0035] In this embodiment, the limiting mechanism includes a gear 98, a limiting rod 99, a rectangular rod 910 and a movable plate 911. The gear 98 is rotatably installed in the installation sleeve 7 and is connected to the rotating shaft of the installation plate 8 through a transmission shaft. The limiting rod 99 is slidably inserted in the tooth gap of the gear 98. The limiting rod 99 is fixed on the movable plate 911. The movable plate 911 is fixed with a rectangular rod 910. The rectangular rod 910 is slidably inserted in the rectangular slot of the rotating rod 97. A groove is provided on the installation sleeve 7. A protrusion 13 is slidably inserted in the groove provided on the installation sleeve 7. The protrusion 13 is fixed on the movable plate 911. When the display screen assembly is fully inserted into the installation sleeve 7, the movable plate 911 is spliced ​​together. After the movable plate 911 is spliced ​​into the groove opened in the installation sleeve 7, the limiting rod 99 will be stuck in the tooth gap of the gear 98 to fix the installation plate 8. A threaded hole is opened on the installation plate 8. The entire installation sleeve 7 and the display screen assembly are installed through the threaded hole opened in the installation plate 8. After the movable plate 911 is spliced ​​into the groove opened in the installation sleeve 7, the rectangular rod 910 will be stuck in the rectangular slot of the rotating rod 97, thereby achieving the effect of limiting the rotating rod 97 and the installation plate 8 at the same time, ensuring that after the splint 91 clamps the display screen assembly, the display screen assembly will not fall off due to vibration, thereby improving the seismic resistance of the display screen assembly.

[0036] In this embodiment, the protection mechanism includes a rubber strip 912, a slide plate 913 and a spring B914. The rubber strip 912 is fixed to the slide plate 913, and the slide plate 913 is slidably installed in the clamping plate 91. The slide plate 913 is fixed to one end of the spring B914, and the other end of the spring B914 is fixed to the clamping plate 91. When the display screen assembly is inserted into the clamping plate 91, the rubber strip 912 will protect the part of the display screen assembly that contacts the clamping plate 91, preventing the display screen assembly from vibrating or rubbing against the mounting plate 7 during installation, causing wear of the display screen assembly, thereby improving the service life of the entire display screen assembly, enabling the clamping plate 91 to adapt to display screen assemblies of different thicknesses, ensuring that the display screen assembly is protected when it is subjected to vibration during use, and improving the service life of the display screen assembly.

[0037] When working (or in use), when installing the display screen assembly, after the display screen assembly is plugged into the installation sleeve 7, the display screen assembly squeezes the splint 91. After being squeezed, the splint 91 will separate to both sides, and the display screen assembly will be pre-clamped by the spring A92 to prevent the display screen assembly from falling off before it is fixed, thereby improving the installation efficiency of the display screen assembly. When the splint 91 is squeezed to both sides by the display screen assembly, it will drive the slider 95 to separate to both sides through the bracket 94. When the slider 95 is separated to both sides, it drives the rotating rod 97 to rotate through the slide bar 96. The rotating rod 97 drives the arc gear A971 to rotate. After the arc gear A971 rotates through the arc gear B972, it drives the cooling fan 973 to rotate through the transmission shaft. After the cooling fan 973 rotates, the display screen assembly is cooled, thereby improving the service life of the display screen assembly. When the display screen assembly is fully inserted into the installation sleeve 7, the movable plate 911 is spliced ​​on the installation sleeve After the movable plate 911 is spliced ​​into the groove opened by the sleeve plate 7 and the movable plate 911 is spliced ​​into the groove opened by the installation sleeve plate 7, the limit rod 99 will be stuck in the tooth gap of the gear 98 to fix the installation plate 8. A threaded hole is opened on the installation plate 8, and the entire installation sleeve plate 7 and the display screen assembly are installed through the threaded hole opened by the installation plate 8. After the movable plate 911 is spliced ​​into the groove opened by the installation sleeve plate 7, the rectangular rod 910 will be stuck in the rectangular slot of the rotating rod 97, thereby achieving the effect of limiting the rotating rod 97 and the installation plate 8 at the same time, ensuring that the display screen assembly will not fall off due to vibration after the clamping plate 91 is clamped to the display screen assembly, thereby improving the shock resistance of the display screen assembly. When the display screen assembly is inserted into the clamping plate 91, the rubber strip 912 will protect the part of the display screen assembly that contacts the clamping plate 91, preventing the display screen assembly from vibrating or rubbing against the installation sleeve plate 7 during installation, causing wear of the display screen assembly, thereby improving the service life of the entire display screen assembly.

[0038] 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 liquid crystal screen with a high refractive index, comprising a liquid crystal panel (1), an upper protective film (2), a cross prism film (3), a diffusion sheet (4), a light guide sheet (5) and a low-reflection sheet (6), characterized in that: A mounting plate (7) is slidably mounted on the liquid crystal panel (1), a hollow groove is provided at the bottom of the mounting plate (7), a mounting plate (8) is rotatably mounted on the mounting plate (7), a groove is provided on the mounting plate (8), a cross bar (10) is fixed in the groove provided on the mounting plate (8), a spring C (11) is sleeved on the cross bar (10), a fixing plate (12) is slidably mounted on the cross bar (10), a mounting device (9) for fixing the display screen assembly is provided in the mounting plate (7), the mounting device (9) comprises a clamping mechanism, a transmission mechanism, a limiting mechanism and a protection mechanism; The clamping mechanism includes a clamping plate (91), a spring A (92) and a vertical plate (93), wherein the clamping plate (91) is fixed to one end of the spring A (92), and the other end of the spring A (92) is fixed to the vertical plate (93), and the vertical plate (93) is fixed in a slot provided in the mounting sleeve (7); The transmission mechanism includes a bracket (94), a slider (95), a slide rod (96) and a rotating rod (97), one end of the bracket (94) is hinged to the clamping plate (91), the other end of the bracket (94) is hinged to the surface of the slider (95), the slider (95) is slidably installed in the installation sleeve (7), a rotating rod (97) is slidably installed in the slider (95), the rotating rod (97) is rotatably installed in the installation sleeve (7), an arc-shaped sliding groove is provided on the surface of the rotating rod (97), a slide rod (96) is slidably installed in the arc-shaped sliding groove provided on the rotating rod (97), the slide rod (96) is fixed on the slider (95), and a rectangular card groove is provided in a circular array on the rotating rod (97); The rotating rod (97) includes an arc gear A (971), an arc gear B (972) and a cooling fan (973), wherein the arc gear A (971) is fixed on the rotating rod (97), the arc gear A (971) is meshed with the arc gear B (972), and the arc gear B (972) and the cooling fan (973) are both rotatably mounted on the mounting sleeve (7) via a transmission shaft; A groove is provided on the installation sleeve (7), a protrusion (13) is slidably inserted into the groove provided on the installation sleeve (7), and the protrusion (13) is fixed on the movable plate (911).

2. The liquid crystal screen with a high refractive index according to claim 1, characterized in that: The limiting mechanism comprises a gear (98), a limiting rod (99), a rectangular rod (910) and a movable plate (911); the gear (98) is rotatably mounted in the mounting sleeve (7) and is connected to the rotating shaft of the mounting plate (8) via a transmission shaft; the limiting rod (99) is slidably inserted in the tooth gap of the gear (98); the limiting rod (99) is fixed on the movable plate (911); a rectangular rod (910) is fixed on the movable plate (911); and the rectangular rod (910) is slidably inserted in the rectangular slot of the rotating rod (97).

3. The liquid crystal screen with a high refractive index according to claim 2, characterized in that: A groove is provided on the clamping plate (91).

4. The liquid crystal screen with a high refractive index according to claim 3, characterized in that: The protective mechanism comprises a rubber strip (912), a slide plate (913) and a spring B (914), wherein the rubber strip (912) is fixed to the slide plate (913), the slide plate (913) is slidably mounted in the clamping plate (91), the slide plate (913) is fixed to one end of the spring B (914), and the other end of the spring B (914) is fixed to the clamping plate (91).

5. The liquid crystal screen with a high refractive index according to claim 4, characterized in that: An inclined surface is provided on the side wall of the bottom of the clamping plate (91).

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