LCD display screen test fixture

Abstract

The utility model discloses an LCD display screen test fixture which comprises a clamping mechanism, a test board, a flattening frame and fixing mechanisms used for fixing the flattening frame, the flattening frame is hinged to one side of the test board and abuts against an LCD display screen, and the fixing mechanisms are arranged on the two sides of the test board; mounting plates are vertically and fixedly arranged on the two sides of the test board, the clamping mechanism comprises a first clamping plate, a plurality of elastic pieces, a second clamping plate and an adjusting screw rod, the two ends of the elastic pieces are fixedly connected with the first clamping plate and the mounting plate on one side of the test board respectively, and the adjusting screw rod is arranged on the mounting plate on the other side of the test board in a threaded connection mode; the second clamping plate is movably connected to the end, facing the first clamping plate, of the adjusting screw rod. The LCD display screen flattening device has the advantages that the LCD display screen with the arc-shaped curved surface can be flattened by the flattening frame, and the LCD display screen can be clamped and fixed by adjusting the adjusting screw rod; the LCD display screen clamping device can be suitable for clamping and fixing LCD display screens of different types and different sizes.

Description

Technical Field

[0001] The utility model relates to the technical field of LCD display screen production, in particular to an LCD display screen testing fixture. Background Art

[0002] After years of development, LCD displays have gradually shed their traditional display coats. In order to avoid being restricted by installation sites, flexible LCD displays have appeared on the market. Flexible LCD displays are also called LCD soft screens. Flexible LCD displays are relatively soft and can be bent arbitrarily. They can be folded 120 degrees and have high-strength compression and distortion resistance. They can be spliced ​​in any shape according to user needs, and arc splicing can be easily achieved.

[0003] There is a testing process in the production process of LCD display screens. When testing LCD display screens, the LCD display screen needs to be fixed first. However, since the surface of flexible LCD display screens is curved in normal state, the existing LCD display screen test fixture has the disadvantage of unstable clamping of curved LCD display screens, which brings many inconveniences to the testing of curved LCD display screens, and improvements are needed. Utility Model Content

[0004] The utility model aims to provide an LCD display screen test fixture which is convenient for fixing a flexible LCD display screen and can keep the surface of the flexible LCD display screen flat.

[0005] The utility model provides an LCD display screen test fixture, comprising a clamping mechanism, a test bench for placing an LCD display screen, a flattening frame for clamping the LCD display screen, and a fixing mechanism for fixing the flattening frame, wherein the flattening frame is hinged to one side of the test bench and abuts against the LCD display screen, and the fixing mechanism is arranged on both sides of the test bench;

[0006] Mounting plates are vertically fixed on both sides of the test bench, and the clamping mechanism includes a first clamping plate, a plurality of elastic members, a second clamping plate and an adjusting screw. The two ends of the elastic member are respectively fixedly connected to the first clamping plate and the mounting plate on one side of the test bench, and the adjusting screw is threadedly connected to the mounting plate on the other side of the test bench. The second clamping plate is movably connected to an end of the adjusting screw facing the first clamping plate, and the LCD display screen is limited between the first clamping plate and the second clamping plate.

[0007] Preferably, the test bench comprises a base and a sliding plate, the sliding plate is slidably arranged on the base, and the LCD display screen is placed on the sliding plate.

[0008] Preferably, a sliding groove is formed on the surface of the base, and a sliding block is provided at the bottom end of the sliding plate, and the sliding block is embedded in the sliding groove.

[0009] Preferably, a limiting plate is provided on one side of the sliding plate.

[0010] Preferably, a first protection pad is fixedly provided on one side of the first clamping plate and the second clamping plate facing each other.

[0011] Preferably, the elastic member is configured as a spring.

[0012] Preferably, a second protection pad is fixedly provided at the bottom end of the flattening frame.

[0013] Preferably, the fixing mechanism comprises a bottom block, a mounting screw and a pressing block, the mounting screw is threadedly connected to the bottom block, the pressing block is fixedly arranged on the mounting screw, and the pressing block abuts against the flattening frame.

[0014] From the above description of the utility model, it can be seen that the utility model has the following beneficial effects:

[0015] 1. The flattening frame can flatten the curved LCD display screen, and the LCD display screen can be clamped and fixed by adjusting the adjusting screw; it can be adapted to the clamping and fixing of LCD display screens of different types and sizes.

[0016] 2. A first protection pad is arranged on the side where the first clamping plate and the second clamping plate face each other, and a second protection pad is fixedly arranged on the bottom surface of the flattening frame to avoid direct contact with the surface of the LCD display screen and protect the LCD display screen.

[0017] 3. The test bench is configured to include a base and a sliding plate. The sliding plate is slidably arranged on the base. The LCD display screen is placed on the sliding plate and then slides to the top of the base, so as to facilitate the placement of the LCD display screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of an LCD display screen test fixture according to an embodiment;

[0019] Figure 2 is a schematic structural diagram of a test bench and a clamping mechanism in an embodiment;

[0020] Figure 3 is a schematic diagram of the structure of the test plate and the sliding block of the embodiment;

[0021] Figure 4 is a schematic structural diagram of a flattening frame and a second protection pad in an embodiment;

[0022] Figure 5It is a schematic structural diagram of the fixing mechanism of the embodiment.

[0023] Figure numerals: 1. test bench; 11. base; 111. sliding groove; 112. mounting plate; 12. sliding plate; 121. sliding block; 122. limit plate; 2. clamping mechanism; 21. first clamping plate; 22. elastic member; 23. second clamping plate; 24. adjusting screw; 25. first protection pad; 3. flattening frame; 31. second protection pad; 4. fixing mechanism; 41. bottom block; 42. mounting screw; 43. pressing block. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the following is a summary of the technical problems, technical solutions and beneficial effects to be solved by the present invention. Figure 1-5 It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0025] Reference Figure 1 , Figure 2 and Figure 3 A test fixture for an LCD display screen includes a test bench 1, a clamping mechanism 2, a flattening frame 3 and a fixing mechanism 4, wherein the test bench 1 is used to place an LCD display screen, and the test bench 1 is configured to include a base 11 and a sliding plate 12, wherein the sliding plate 12 is slidingly arranged on the surface of the base 11, and after the LCD display screen is placed on the sliding plate 12, the sliding plate 12 is slidably arranged to be directly above the base 11. Thus, a sliding groove 111 is formed on the surface of the base 11, and a sliding block 121 is correspondingly arranged at the bottom end of the sliding plate 12, and the sliding block 121 at the bottom end of the sliding plate 12 is embedded in the sliding groove 111 on the surface of the base 11. In the process of sliding the sliding plate 12, in order to avoid positional offset between the LCD display screen and the sliding plate 12, a limiting plate 122 is vertically arranged on one side of the sliding plate 12, and in the process of sliding the sliding plate 12, the LCD display screen always abuts against the limiting plate 122, so that the limiting plate 122 plays a limiting role on the LCD display screen.

[0026] Mounting plates 112 are vertically arranged on both sides of the upper surface of the base 11, and the clamping mechanism 2 is arranged on the mounting plates 112 on both sides of the upper surface of the base 11. The clamping mechanism 2 includes a first clamping plate 21, a plurality of elastic members 22, a second clamping plate 23 and an adjusting screw 24, and the elastic member 22 is arranged as a spring; one end of the plurality of springs is fixedly connected to the mounting plate 112 on one side of the surface of the base 11, and the other end of the plurality of springs is fixed to the first clamping plate 21. The adjusting screw 24 is threadedly connected to the mounting plate 112 on the other side of the surface of the base 11, and the second clamping plate 23 is movably connected to the end of the adjusting screw 24 facing the first clamping plate 21, and the spacing between the second clamping plate 23 and the first clamping plate 21 can be adjusted by rotating the adjusting screw 24.

[0027] Reference Figure 4 and Figure 5 , hinge the flattening frame 3 with one side of the base 11 of the test bench 1, set the fixing mechanism 4 on both sides of the test bench 1, slide the sliding plate 12 with the LCD display inward to the top of the base 11, and the sliding direction of the sliding plate 12 into the base 11 points to the flattening frame 3. When the sliding plate 12 with the LCD display slides to the top of the base 11, flip the flattening frame 3 onto the LCD display. The fixing mechanism 4 includes a bottom block 41, a mounting screw 42 and a pressing block 43. The mounting screw 42 is threadedly connected and set on the bottom block 41, and the pressing block 43 is fixed to the top of the mounting screw 42. Then, the pressing block 43 is rotated so that the mounting screw 42 and the bottom block 41 rotate relative to each other until the pressing block 43 abuts against the top of the flattening frame 3, thereby fixing the flattening frame 3 through the fixing mechanism 4. The setting of the flattening frame 3 flattens the LCD display on the sliding plate 12 and plays a preliminary fixing role on the LCD display. In addition, in order to prevent the flattening frame 3 from causing damage to the surface of the LCD display screen, a second protection pad 31 is provided on the bottom surface of the flattening frame 3. The second protection pad 31 is provided to avoid diameter contact between the flattening frame 3 and the LCD display screen, thereby protecting the LCD display screen.

[0028] Reference Figure 1 and Figure 2When the sliding plate 12 slides to the top of the base 11, the LCD screen is located between the first clamping plate 21 and the second clamping plate 23. The first clamping plate 21 abuts against one side of the LCD screen under the action of the spring. The adjusting screw 24 is rotated to make the second clamping plate 23 abut against the other side of the LCD screen, so that the first clamping plate 21 and the second clamping plate 23 clamp the LCD screen. The spring between the first clamping plate 21 and the mounting plate 112 is set to buffer the first clamping plate 21, so as to prevent the first clamping plate 21 from damaging the side of the LCD screen; in addition, the adjusting screw 24 is rotated to drive the second clamping plate 23 to move, so as to adjust the distance between the second clamping plate 23 and the first clamping plate 21 to match LCD screens of different models and sizes. In order to prevent the first clamping plate 21 and the second clamping plate 23 from causing damage to both sides of the LCD display screen, a first protection pad 25 is provided on the side where the first clamping plate 21 and the second clamping plate 23 face each other, so as to prevent the first clamping plate 21 and the second clamping plate 23 from directly abutting against both sides of the LCD display screen respectively, so as to protect both sides of the LCD display screen.

[0029] The specific implementation principle of the embodiment of the present application is as follows: when the LCD display needs to be tested, the LCD display is placed on the sliding plate 12 and abutted against the limit plate 122, and the sliding plate 12 is slid in the direction where the base 11 and the flattening frame 3 are hinged, until the sliding plate 12 slides to the top of the base 11. The flattening frame 3 is turned over to abut against the upper surface of the LCD display, and then the pressure blocks 43 on both sides of the test bench 1 are rotated to the top of the flattening frame 3 to fix the flattening frame 3. The LCD display with an arc-shaped surface on the sliding plate 12 is flattened by the flattening frame 3, and at the same time, the first clamping plate 21 abuts against one side of the LCD display under the action of the spring force, and the adjusting screw 24 is rotated to make the second clamping plate 23 abut against the other side of the LCD display, so that the LCD display on the sliding plate 12 is fixed more firmly. The first clamping plate 21 is connected to the mounting plate 112 by a spring, and the adjusting screw 24 fixed to the second clamping plate 23 is connected to another mounting plate 112 by a thread, so that the clamping mechanism 2 can be adjusted according to LCD display screens of different models and sizes to complete the fixation.

[0030] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various non-substantial improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all protected by the utility model.

Claims

1. An LCD display screen test fixture, characterized in that: It includes a clamping mechanism, a test bench for placing an LCD display screen, a flattening frame for clamping the LCD display screen, and a fixing mechanism for fixing the flattening frame, wherein the flattening frame is hinged to one side of the test bench and abuts against the LCD display screen, and the fixing mechanism is arranged on both sides of the test bench; Mounting plates are vertically fixed on both sides of the test bench, and the clamping mechanism includes a first clamping plate, a plurality of elastic members, a second clamping plate and an adjusting screw. The two ends of the elastic member are respectively fixedly connected to the first clamping plate and the mounting plate on one side of the test bench, and the adjusting screw is threadedly connected to the mounting plate on the other side of the test bench. The second clamping plate is movably connected to an end of the adjusting screw facing the first clamping plate, and the LCD display screen is limited between the first clamping plate and the second clamping plate.

2. The LCD display screen test fixture according to claim 1, characterized in that: The test bench comprises a base and a sliding plate, wherein the sliding plate is slidingly arranged on the base, and the LCD display screen is placed on the sliding plate.

3. The LCD display screen test fixture according to claim 2, characterized in that: A sliding groove is formed on the surface of the base, and a sliding block is arranged at the bottom end of the sliding plate, and the sliding block is embedded in the sliding groove.

4. The LCD display screen test fixture according to claim 2, characterized in that: A limiting plate is arranged on one side of the sliding plate.

5. The LCD display screen test fixture according to claim 1, characterized in that: A first protection pad is fixedly disposed on one side of the first clamping plate and the second clamping plate facing each other.

6. The LCD display screen test fixture according to claim 1, characterized in that: The elastic member is configured as a spring.

7. The LCD display screen test fixture according to claim 1, characterized in that: A second protection pad is fixedly arranged at the bottom end of the flattening frame.

8. The LCD display screen test fixture according to claim 1, characterized in that: The fixing mechanism comprises a bottom block, a mounting screw and a pressing block. The mounting screw is threadedly connected to the bottom block. The pressing block is fixedly arranged on the mounting screw and abuts against the flattening frame.

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