Vacuum fixing device for display panel

Abstract

The utility model relates to the technical field of vacuum fixing devices, in particular to a display panel vacuum fixing device. According to the technical scheme, the device comprises a case and further comprises a fixing mechanism installed at the bottom of the case in a sliding mode and used for rapidly fixing a display panel, a pressing assembly fixedly installed at the top of the case and used for sealing and evenly applying pressure to the display panel located on the fixing mechanism, and a vacuum pump installed on the top of the case and used for sealing the display panel located on the fixing mechanism. The vacuum pump is installed on the top of the machine box and used for vacuumizing the space between the fixing assembly and the pressing assembly. The liquid crystal display screen and the touch screen are prevented from being misplaced through the fixing mechanism, the touch screen and the liquid crystal display screen are prevented from being not firmly fixed through the pressing assembly, bubbles are prevented from being generated between the liquid crystal display screen and the touch screen through the vacuum pump, a liquid crystal layer is prevented from being incapable of correctly displaying images, and the accuracy of a touch sensor is prevented from being interfered.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum fixing devices, in particular to a vacuum fixing device for a display panel. Background Art

[0002] Display panels include liquid crystal displays and touch screens. Liquid crystal displays are flat, ultra-thin display devices that consist of a certain number of color or black and white pixels. These pixels are located between the liquid crystal layer and the color filter. The liquid crystal layer is composed of two layers of glass substrates, and the space between the two substrates is filled with liquid crystal material. When the liquid crystal material is affected by an electric field, its molecules will be arranged in a specific way, thereby controlling the combination of light passing through the color filter to produce different colors and grayscales to display images and text. A touch screen is an inductive input device that can detect user touch operations and convert these operations into electrical signals that are transmitted to the control system of the liquid crystal display. Touch screen technologies include resistive, capacitive, infrared, and surface acoustic wave.

[0003] The display panel needs to assemble and combine the liquid crystal display and the touch screen to form a complete display and input device. The liquid crystal layer needs to be placed under the touch screen.

[0004] Bubbles are prone to appear when the LCD display and touch screen are combined. Bubbles that appear when the LCD display and touch screen are combined may have an adverse effect on the performance and life of the display panel. Bubbles may block light, causing the liquid crystal layer under the touch screen to be unable to display images correctly, thereby affecting visual clarity. The movement of bubbles may also cause distortion or flickering of the displayed content. Bubbles on the touch screen may interfere with the accuracy of the touch sensor, causing inaccurate touch positioning and affecting the user experience. Utility Model Content

[0005] The utility model aims to solve the problems existing in the background technology and proposes a display panel vacuum fixing device which can prevent bubbles from appearing between a liquid crystal display and a touch screen when the two are combined.

[0006] The technical solution of the utility model: a display panel vacuum fixing device, including a chassis, and also includes:

[0007] A fixing mechanism is slidably mounted on the bottom of the chassis, and the fixing mechanism quickly fixes the display panel;

[0008] A pressing assembly fixedly mounted on the top of the chassis, the pressing assembly seals the display panel on the fixing mechanism and applies uniform pressure;

[0009] A vacuum pump is installed on the top of the chassis, and the vacuum pump evacuates the space between the fixing component and the pressing component.

[0010] Optionally, the fixing mechanism includes a first support plate slidably installed in the chassis, a closing plate fixedly installed on the first support plate, an installation box fixedly installed on the closing plate, a plurality of slide grooves provided on the installation box, a fixed block slidably installed in the slide groove, a driving column fixedly installed on the fixed block, a motor fixedly installed on the first support plate, a turntable fixedly installed on the output shaft of the motor, and a plurality of guide grooves provided on the turntable, and the guide grooves are slidably connected to the driving columns.

[0011] Optionally, a plurality of support columns are fixedly mounted on the first support plate, a rolling ball is rotatably mounted on the support column, and the bottom of the turntable rests on the rolling ball.

[0012] Optionally, slide rails are fixedly installed on both sides of the bottom of the chassis, and a slide bar is fixedly installed on the bottom of the first support plate, and the slide bar is slidably connected to the slide rails.

[0013] Optionally, a sealing strip is provided at the connection between the sealing plate and the first support plate, and a sealing strip is provided at the connection between the sealing plate and the installation box, and the sealing strip ensures better air tightness between the first support plate and the installation box.

[0014] Optionally, the pressing assembly includes a cylinder fixedly mounted on the chassis, a second support plate fixedly mounted on the cylinder output shaft, a plurality of springs fixedly mounted on the second support plate, a sealing cover fixedly mounted on the other ends of the plurality of springs, and a pressure plate fixedly mounted on the cylinder output shaft, wherein the pressure plate is located in the sealing cover, and the telescopic shaft of the cylinder passes through the sealing cover and extends to the interior of the sealing cover.

[0015] Optionally, the pressing plate is made of a flexible rubber material, and the pressing plate prevents the display panel from being scratched.

[0016] Optionally, the vacuum pump is connected to an air pipe, and the other end of the air pipe is connected to the sealing cover.

[0017] Optionally, a door is rotatably mounted on the chassis, and a handle is fixedly mounted on the door for easy opening and closing of the door.

[0018] Compared with the prior art, the utility model has the following beneficial technical effects:

[0019] The utility model uses a fixing mechanism to make the liquid crystal display and the touch screen abut against fixing blocks on all sides, and the liquid crystal display and the touch screen are limited by multiple fixing blocks, so that the liquid crystal display and the touch screen can be fixed to prevent the liquid crystal display and the touch screen from being misaligned;

[0020] Furthermore, the touch screen is pressed by the pressing assembly to make the touch screen fit with the liquid crystal display screen, thereby preventing the touch screen and the liquid crystal display screen from being loosely fixed;

[0021] Furthermore, the air between the sealing cover and the support plate is extracted through a vacuum pump, thereby extracting the air between the LCD screen and the touch screen, thereby preventing bubbles from appearing between the LCD screen and the touch screen, preventing the bubbles from blocking light, causing the liquid crystal layer under the touch screen to be unable to correctly display the image, and preventing interference with the accuracy of the touch sensor, causing inaccurate touch positioning, and affecting the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the structure of an embodiment of the utility model is given Figure 1 ;

[0023] Figure 2 A schematic diagram of the structure of an embodiment of the utility model is given Figure 2 ;

[0024] Figure 3 A structural schematic diagram of the fixing mechanism of the utility model is given;

[0025] Figure 4 A structural schematic diagram of the pressing assembly of the utility model is given.

[0026] Figure numerals: 1, chassis; 101, box door; 2, installation box; 201, slide groove; 202, fixing block; 203, driving column; 204, first support plate; 205, sealing plate; 206, motor; 207, turntable; 208, guide groove; 3, support column; 301, ball; 4, cylinder; 401, spring; 402, sealing cover; 403, pressure plate; 404, vacuum pump; 405, air pipe; 406, second support plate; 5, slide rail; 501, slide bar. DETAILED DESCRIPTION

[0027] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0029] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Example:

[0034] like Figure 1-Figure 3As shown, a display panel vacuum fixing device proposed by the utility model includes a chassis 1, a box door 101 is rotatably installed on the chassis 1, and a handle for opening and closing the box door 101 is fixedly installed on the box door 101. It also includes: a fixing mechanism is slidably installed at the bottom of the chassis 1, and the fixing mechanism quickly fixes the display panel. The fixing mechanism includes a first support plate 204 slidably installed in the chassis 1, a sealing plate 205 fixedly installed on the first support plate 204, an installation box 2 fixedly installed on the sealing plate 205, a plurality of slide grooves 201 arranged on the installation box 2, a fixing block 202 slidably installed in the slide groove 201, a driving column 203 fixedly installed on the fixing block 202, a motor 206 fixedly installed on the first support plate 204, a turntable 207 fixedly installed on the output shaft of the motor 206, and a plurality of guide grooves 208 arranged on the turntable 207, and the guide grooves 208 are slidably connected with the driving column 203. When assembling the LCD and the touch screen, open the box door 101, pull out the first support plate 204, and thus pull out the installation box 2, so as to facilitate the installation of the LCD and the touch screen. Then, ensure that the LCD and the touch screen are free of dust, and then place the LCD and the touch screen in the installation box 2, and then push the first support plate 204 into the inside of the chassis 1, and then close the chassis 1, and then start the motor 206, the motor 206 drives the turntable 207 to rotate, thereby driving the driving column 203 to slide in the slide groove 201, and then drives the fixed block 202 to move, so that the fixed block 202 can move in the direction close to the LCD and the touch screen, and then the fixed block 202 contacts the touch screen and stops moving after contact. A pressure sensor is installed on the fixed block 202. When the fixed block 202 contacts the touch screen, the pressure sensor detects a pressure change, and then controls the motor 206 to stop rotating, thereby stopping the fixed block 202 from moving. The touch screen is limited by the fixed blocks 202 around the touch screen, and the fixation is completed.

[0035] Furthermore, the first support plate 204 is fixedly mounted with a plurality of support columns 3, on which rolling balls 301 are rotatably mounted, and the bottom of the turntable 207 abuts against the rolling balls 301. The rolling balls 301 support the turntable, reducing the stress state of the output shaft of the motor 206. When the turntable 207 rotates, the rolling balls 301 will rotate under the drive of the turntable 207, thereby reducing the friction force on the turntable 207 and making the turntable 207 rotate more smoothly;

[0036] Among them, the two sides of the bottom of the chassis 1 are fixedly installed with slide rails 5, and the bottom of the first support plate 204 is fixedly installed with a slide bar 501, and the slide bar 501 is slidably connected with the slide rail 5. The slide bar 501 and the slide rail 5 facilitate pulling the first support plate 204 out of the chassis 1, reducing the friction between the chassis 1;

[0037] A sealing strip is provided at the connection between the sealing plate 205 and the first support plate 204, and a sealing strip is provided at the connection between the sealing plate 205 and the installation box 2, so that the first support plate 204 and the installation box 2 have good airtightness to prevent air leakage when vacuuming.

[0038] like Figure 2-3 As shown, a pressing assembly fixedly mounted on the top of the chassis 1 seals and uniformly presses the display panel on the fixing mechanism. The pressing assembly includes a cylinder 4 fixedly mounted on the chassis 1, a second support plate 406 fixedly mounted on the output shaft of the cylinder 4, a plurality of springs 401 fixedly mounted on the second support plate 406, a sealing cover 402 fixedly mounted on the other end of the plurality of springs 401, and a pressing plate 403 fixedly mounted on the output shaft of the cylinder 4. The pressing plate 403 is located in the sealing cover 402, and the telescopic shaft of the cylinder 4 passes through the sealing cover 402 and extends to the inside of the sealing cover 402. After the LCD screen and the touch screen are fixed, the cylinder 4 can drive the second support plate 406 and the pressing plate 403 to descend, so that the sealing cover 402 contacts the bottom of the installation box 2, and the sealing cover 402 and the bottom of the installation box 2 are airtight. The telescopic shaft of the cylinder 4 continues to move downward to make the pressing plate 403 contact the touch screen. At this time, the sealing cover 402 slides on the telescopic shaft of the cylinder 4 and compresses the spring. The spring applies pressure to the sealing cover to make the sealing cover and the bottom of the installation box 2 closer. After the pressing plate 403 contacts the touch screen, the touch screen and the LCD screen can be pressed tightly to prevent the touch screen and the LCD screen from being loosely fixed.

[0039] The pressing plate 403 is made of a flexible rubber material to prevent the display panel from being scratched. After the pressing plate 403 contacts the touch screen, elastic deformation may occur to prevent the touch screen from being damaged by excessive pressure.

[0040] like Figure 2 and Figure 4 As shown, a vacuum pump 404 is installed on the top of the chassis 1, and the vacuum pump 404 evacuates the space between the fixed component and the pressing component. An air pipe 405 is connected to the vacuum pump 404, and the other end of the air pipe 405 is connected to the sealing cover 402. When the sealing cover 402 contacts the bottom of the installation box 2, the vacuum pump 404 is started to extract the air between the sealing cover 402 and the first support plate 204, so that the air between the liquid crystal display screen and the touch screen is extracted, thereby preventing bubbles from appearing between the liquid crystal display screen and the touch screen.

[0041] Working principle: when assembling the LCD display and the touch screen, open the box door 101, pull out the first support plate 204, then place the LCD display and the touch screen in the installation box 2, then push the first support plate 204 into the chassis 1, and then close the chassis 1, and then start the motor 206, the motor 206 drives the turntable 207 to rotate, thereby driving the fixed block 202 to move in the direction close to the LCD display and the touch screen, so that the fixed block 202 contacts the touch screen and stops moving after contact, and the touch screen is limited by the fixed blocks 202 around the touch screen, so that the fixation is completed;

[0042] Then, the cylinder 4 drives the second support plate 406 and the pressing plate 403 to descend, so that the sealing cover 402 contacts the bottom of the installation box 2, and the telescopic shaft of the cylinder 4 continues to move downward to make the pressing plate 403 contact the touch screen, so that the touch screen and the liquid crystal display screen are pressed tightly to prevent the touch screen and the liquid crystal display screen from being loosely fixed;

[0043] When the sealing cover 402 contacts the bottom of the installation box 2, the vacuum pump 404 is started to extract the air between the sealing cover 402 and the first support plate 204, thereby extracting the air between the LCD screen and the touch screen, thereby preventing bubbles from appearing between the LCD screen and the touch screen.

[0044] The above-mentioned specific embodiments are only several optional embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A vacuum fixing device for a display panel, comprising a chassis (1), characterized in that: Also includes: A fixing mechanism is slidably mounted on the bottom of the chassis (1), and the fixing mechanism quickly fixes the display panel; A pressing assembly fixedly mounted on the top of the chassis (1), the pressing assembly sealing the display panel located on the fixing mechanism and applying uniform pressure; A vacuum pump (404), the vacuum pump (404) being installed on the top of the chassis (1), and the vacuum pump (404) evacuating the space between the fixing component and the pressing component.

2. A display panel vacuum fixing device according to claim 1, characterized in that: The fixing mechanism comprises a first support plate (204) slidably mounted in the chassis (1), a sealing plate (205) fixedly mounted on the first support plate (204), an installation box (2) fixedly mounted on the sealing plate (205), a plurality of slide grooves (201) provided on the installation box (2), a fixing block (202) slidably mounted in the slide groove (201), a driving column (203) fixedly mounted on the fixing block (202), a motor (206) fixedly mounted on the first support plate (204), a rotating disk (207) fixedly mounted on an output shaft of the motor (206), and a plurality of guide grooves (208) provided on the rotating disk (207), wherein the guide grooves (208) are slidably connected to the driving column (203).

3. A display panel vacuum fixing device according to claim 2, characterized in that: The first support plate (204) is fixedly mounted with a plurality of support columns (3), on which rolling balls (301) are rotatably mounted, and the bottom of the rotating disk (207) abuts against the rolling balls (301).

4. The vacuum fixing device for display panel according to claim 2, characterized in that: Slide rails (5) are fixedly installed on both sides of the bottom of the chassis (1), and a slide bar (501) is fixedly installed on the bottom of the first support plate (204), and the slide bar (501) is slidably connected to the slide rails (5).

5. The vacuum fixing device for display panel according to claim 2, characterized in that: A sealing strip is provided at the connection between the sealing plate (205) and the first support plate (204), and a sealing strip is provided at the connection between the sealing plate (205) and the installation box (2), wherein the sealing strip ensures good air tightness between the first support plate (204) and the installation box (2).

6. The vacuum fixing device for display panel according to claim 1, characterized in that: The pressing assembly comprises a cylinder (4) fixedly mounted on the chassis (1), a second support plate (406) fixedly mounted on the output shaft of the cylinder (4), a plurality of springs (401) fixedly mounted on the second support plate (406), a sealing cover (402) fixedly mounted on the other ends of the plurality of springs (401), and a pressing plate (403) fixedly mounted on one end of the output shaft of the cylinder (4), wherein the pressing plate (403) is located inside the sealing cover (402), and a telescopic shaft of the cylinder (4) passes through the sealing cover (402) and extends to the interior of the sealing cover (402).

7. The vacuum fixing device for display panel according to claim 6, characterized in that: The pressing plate (403) is made of a flexible rubber material, and the pressing plate (403) prevents the display panel from being scratched.

8. The vacuum fixing device for display panel according to claim 6, characterized in that: The vacuum pump (404) is connected to an air pipe (405), and the other end of the air pipe (405) is in communication with the sealing cover (402).

9. The vacuum fixing device for display panel according to claim 1, characterized in that: A box door (101) is rotatably mounted on the box box (1), and a handle for facilitating opening and closing of the box door (101) is fixedly mounted on the box door (101).

Images