Flatness detection device for LCD (Liquid Crystal Display) screen

Abstract

The utility model relates to the field of flatness detection, in particular to a flatness detection device for an LCD (liquid crystal display) screen, which comprises a base main body, a rotating table, a support frame, a positioning assembly and a mounting assembly, the mounting assembly comprises a first mounting block; a first mounting rod is fixedly connected to the end part of one side of the first mounting block; a second mounting block is slidably connected to the first mounting rod; a second mounting rod is fixedly connected to the end part of one side of the second mounting block; positioning frames are arranged on the outer sides of the first mounting rod and the second mounting rod; the end part of one side of the positioning frame is fixedly connected with a rotating rod; according to the flatness detection device for the LCD screen, the LCD screen is positioned through the first mounting block and the second mounting block, and the LCD screen is positioned and supported through the rotating frame and the supporting table, so that the problems that in the flatness detection process, due to the fact that most existing flatness detection devices for the LCD screen are provided with fixed mounting tables, when the LCD screen is placed and moved, a user is prone to making contact with the LCD screen, the LCD screen is polluted, and the LCD screen is damaged are solved. And the use effect of the flatness detection device for the LCD screen is reduced.

Description

Technical Field

[0001] The utility model relates to the field of flatness detection, in particular to a flatness detection device for LCD screens. Background Art

[0002] The structure of the LCD screen is to place a liquid crystal box between two parallel glass substrates, set thin film transistors on the lower substrate glass, and set color filters on the upper substrate glass. In order to ensure the normal image, the surface flatness of the LCD screen needs to be tested. Thin film interferometry can perform flatness testing on the surface of the device.

[0003] Therefore, most existing LCD screen flatness detection devices are equipped with fixed mounting devices to position the LCD screen to be detected. When placing and moving the LCD screen, users are likely to come into contact with the LCD screen, causing the LCD screen to be contaminated with certain pollutants, thereby affecting the detection effect and resulting in a decrease in the use effect of the LCD screen flatness detection device.

[0004] Therefore, since most of the existing LCD screen flatness detection devices are equipped with fixed mounting platforms, which are easy to contaminate the LCD screen and affect the flatness detection effect, a flatness detection device for LCD screens can be designed to facilitate the movement and positioning of the LCD screen, reduce the possibility of contamination, and improve the detection effect. Utility Model Content

[0005] In order to overcome the problem in the process of flatness detection, most of the existing LCD screen flatness detection devices are equipped with a fixed mounting platform. When placing and moving the LCD screen, the user is likely to come into contact with the LCD screen, causing the LCD screen to be contaminated, resulting in a decrease in the use effect of the LCD screen flatness detection device.

[0006] The technical solution of the utility model is as follows: a flatness detection device for an LCD screen comprises a base body, a rotating table, a supporting frame, a positioning assembly, and a mounting assembly; the mounting assembly comprises a first mounting block for fixing the position of the device; a first mounting rod is fixedly connected to one side end of the first mounting block; a second mounting block is slidably connected to the first mounting rod; a second mounting rod is fixedly connected to one side end of the second mounting block; pads are provided on the inner sides of the first mounting block and the second mounting block; a positioning frame is provided on the outer sides of the first mounting rod and the second mounting rod; a rotating rod is fixedly connected to the outer side of the rotating rod; and a fixing block is provided at the front and rear ends of one side end of the positioning frame.

[0007] Preferably, a base body, a rotating table, and a support frame are provided to place the LCD screen to be tested and perform flatness testing; a positioning component is provided to place and drive the LCD screen to rotate for subsequent testing; and an installation component is provided to position and fix the LCD screen for subsequent transportation and testing.

[0008] Preferably, a base body is provided on the outside of the mounting assembly; a first slide groove is provided at the lower end of the base body; and a first motor is installed at one end of the first slide groove.

[0009] Preferably, a first threaded rod is mounted on the rotating shaft of the first motor via a coupling; an upper end portion of one side end portion of the base body is fixedly connected to a first rotating seat; and a positioning assembly is provided on the base body.

[0010] Preferably, the positioning assembly includes a support platform; the support platform and the base body are arranged to be slidingly connected through a first sliding groove; the first threaded rod and the support platform are arranged to be clearance-fitted; and a support groove is provided at the upper end of the support platform.

[0011] Preferably, a second motor is installed at the lower end of the first rotating seat; a rotating frame is installed on the rotating shaft of the second motor through a coupling; the second rotating seat is fixedly connected to one side end of the rotating frame; and the front and rear ends of the second rotating seat are fixedly connected to guide rods.

[0012] Preferably, a rotating knob is rotatably connected to the second rotating seat; a second threaded rod is fixed to the rotating knob; a slider is fitted in the outer clearance of the second threaded rod; the slider and the guide rod are arranged to be slidingly connected; a positioning rod is fixed to one side end of the slider; the positioning rod and the first mounting block are arranged to correspond.

[0013] Preferably, the first rotating seat is rotatably connected to a rotating table via a rotating shaft; connecting blocks are provided on both side ends of the rotating table; a plug-in plate rack is installed on the connecting blocks; and a standard plate is slidably connected to the plug-in plate rack.

[0014] Preferably, a support frame is fixedly connected to the upper end of the rotating platform; a second sliding groove is provided on the support frame; and a light source generator is slidably connected between the two support frames via the second sliding groove.

[0015] Beneficial effects of the utility model:

[0016] 1. The LCD screen is positioned by setting a first mounting block and a second mounting block, and is positioned and supported by a rotating frame and a support table to facilitate subsequent testing and transportation. This solves the problem that during the flatness detection process, the user is likely to come into contact with the LCD screen when placing and moving the LCD screen, causing the LCD screen to be contaminated, resulting in a decrease in the use effect of the LCD screen flatness detection device. This can thereby improve the use effect of the entire LCD screen flatness detection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Shown is a schematic diagram of the structure of the LCD screen flatness detection device of the present invention;

[0018] Figure 2 Shown is a schematic diagram of the main structure of the base of the LCD screen flatness detection device of the present invention;

[0019] Figure 3 Shown is a schematic diagram of the positioning component structure of the LCD screen flatness detection device of the present invention;

[0020] Figure 4 Shown is a schematic diagram of the installation assembly structure of the LCD screen flatness detection device of the present invention;

[0021] Figure 5 Shown is a schematic diagram of the structure of the rotating table of the LCD screen flatness detection device of the present invention.

[0022] Explanation of the accompanying drawings: 1. base body; 2. first slide groove; 3. first motor; 4. first threaded rod; 5. first rotating seat; 8. rotating table; 9. connecting block; 10. plug-in plate rack; 11. standard plate; 12. support frame; 13. second slide groove; 14. light source generator; 601. support table; 602. support groove; 603. second motor; 604. rotating frame; 605. second rotating seat; 606. guide rod; 607. rotating button; 608. second threaded rod; 609. slider; 610. positioning rod; 701. first mounting block; 702. first mounting rod; 703. second mounting block; 704. second mounting rod; 705. pad; 706. positioning frame; 707. rotating rod; 708. limiting ring; 709. fixing block. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] See also Figure 1-Figure 5The utility model provides an embodiment: a flatness detection device for an LCD screen, comprising a base body 1, a rotating table 8, a support frame 12, a positioning assembly, and a mounting assembly; the mounting assembly comprises a first mounting block 701 for fixing the position of the device; a first mounting rod 702 is fixedly connected to one end of the first mounting block 701; a second mounting block 703 is slidably connected to the first mounting rod 702; a second mounting rod 704 is fixedly connected to one end of the second mounting block 703; a pad 705 is provided on the inner side of each of the first mounting block 701 and the second mounting block 703; the first mounting rod 702 and the second mounting rod 704 are fixedly connected to the inner side of the first mounting block 701 and the second mounting block 703; A positioning frame 706 is provided on the outside of 704; a rotating rod 707 is fixedly connected to one side end of the positioning frame 706; a limiting ring 708 is fixedly connected to the outside of the rotating rod 707; a fixing block 709 is provided at the front and rear ends of one side end of the positioning frame 706; the first mounting block 701 and the second mounting block 703 are connected by the first mounting rod 702, and the pad 705 is used to position and support the LCD screen, and the positioning frame 706 and the fixing block 709 are used to cooperate with the first mounting rod 702 and the second mounting rod 704 to fix the LCD screen, and the rotating rod 707 and the limiting ring 708 are used to facilitate the rotation of the LCD screen.

[0025] See also Figure 2-Figure 3 In this embodiment, the positioning assembly includes a support platform 601; the support platform 601 and the base body 1 are set to be slidably connected through the first slide groove 2; the first threaded rod 4 and the support platform 601 are set to be clearance-fitted; the upper end of the support platform 601 is provided with a support groove 602; the lower end of the first rotating seat 5 is installed with a second motor 603; a rotating frame 604 is installed on the rotating shaft of the second motor 603 through a coupling; one side end of the rotating frame 604 is fixedly connected to the second rotating seat 605; the front and rear ends of the second rotating seat 605 are fixedly connected to the guide rod 606; the rotating connection on the second rotating seat 605 It is connected to a rotating button 607; a second threaded rod 608 is fixed to the rotating button 607; a slider 609 is fitted in the outer gap of the second threaded rod 608; the slider 609 and the guide rod 606 are arranged to be slidingly connected; a positioning rod 610 is fixed to one end of the slider 609; the positioning rod 610 is arranged to correspond to the first mounting block 701; the slider 609 is driven to move by the rotating button 607 and the second threaded rod 608, so as to facilitate docking with the first mounting block 701 through the positioning rod 610, and the rotating rod 707 and the limit ring 708 are placed by and utilizing the support platform 601 and the support groove 602.

[0026] See also Figure 2 、 Figure 5In this embodiment, a base body 1 is provided on the outside of the mounting assembly; a first slide groove 2 is provided at the lower end of the base body 1; a first motor 3 is installed at one end of the first slide groove 2; a first threaded rod 4 is installed on the rotating shaft of the first motor 3 through a coupling; a first rotating seat 5 is fixedly connected to the upper end of one end of the base body 1; a positioning assembly is provided on the base body 1; a rotating table 8 is rotatably connected to the first rotating seat 5 through a rotating shaft; connecting blocks 9 are provided on both sides of the rotating table 8; a plug-in board rack 1 is installed on the connecting block 9 0; a standard plate 11 is slidably connected to the plug-in plate rack 10; a support frame 12 is fixedly connected to the upper end of the rotating table 8; a second slide groove 13 is provided on the support frame 12; a light source generator 14 is slidably connected between the two support frames 12 through the second slide groove 13; the support table 601 is driven to move by the first motor 3 and the first threaded rod 4 to adapt to different LCD screens, and the plug-in plate rack 10 and the support frame 12 are driven by the rotating table 8 and the connecting block 9 to facilitate the placement of the standard plate 11, and the thin film interference detection is performed using the light source generator 14.

[0027] During installation, first, the first mounting block 701 and the second mounting block 703 are connected through the first mounting rod 702, and the pad 705 is used to position and support the LCD screen. Then, the positioning frame 706 and the fixing block 709 are used to cooperate with the first mounting rod 702 and the second mounting rod 704 to fix the LCD screen. Then, the slider 609 is driven to move by the rotating button 607 and the second threaded rod 608 so as to dock with the first mounting block 701 through the positioning rod 610. Finally, the support platform 601 is driven to move by the first motor 3 and the first threaded rod 4, and the support platform 601 and the support groove 602 are used to cooperate to place the rotating rod 707 and the limiting ring 708.

[0028] When in use, the rotating table 8 and the connecting block 9 drive the plug-in plate rack 10 and the support rack 12, so that the plug-in plate rack 10 can be used to place the standard plate 11, and the light source generator 14 can be used to perform thin film interference detection to detect the flatness of the LCD screen surface, and the second motor 603 drives the rotating rack 604 to cooperate with the rotating rod 707 and the limit ring 708 to facilitate the rotation of the LCD screen, thereby detecting the two surfaces. After the detection is completed, the LCD screen can be easily removed from the base body 1 through the rotating rod 707 to reduce the possibility of user contact with the LCD screen.

[0029] Through the above steps, the base body 1, the rotating table 8, and the support frame 12 are provided to place the LCD screen to be tested and perform flatness testing; the support table 601, the rotating frame 604 and the slider 609 are provided to place and drive the LCD screen to rotate for subsequent testing; the first mounting block 701, the second mounting block 703 and the positioning frame 706 are provided to position and fix the LCD screen for subsequent transportation and testing, so as to solve the problem in the process of flatness testing that most existing LCD screen flatness testing devices are provided with a fixed mounting table. When placing and moving the LCD screen, the user is likely to come into contact with the LCD screen, causing the LCD screen to be contaminated, resulting in a decrease in the use effect of the LCD screen flatness testing device, thereby improving the use effect of the entire LCD screen flatness testing device.

Claims

1. A flatness detection device for an LCD screen, comprising a base body (1), a rotating table (8), and a support frame (12); characterized in that: The invention also includes a positioning component and an installation component; the installation component includes a first installation block (701) for fixing the position of the device; a first installation rod (702) is fixedly connected to one side end of the first installation block (701); a second installation block (703) is slidably connected to the first installation rod (702); a second installation rod (704) is fixedly connected to one side end of the second installation block (703); a cushion block (705) is provided on the inner sides of the first installation block (701) and the second installation block (703); a positioning frame (706) is provided on the outer sides of the first installation rod (702) and the second installation rod (704); a rotating rod (707) is fixedly connected to one side end of the positioning frame (706); a limiting ring (708) is fixedly connected to the outer side of the rotating rod (707); and a fixing block (709) is provided at the front and rear ends of one side end of the positioning frame (706).

2. The LCD screen flatness detection device according to claim 1, wherein: A base body (1) is provided on the outside of the mounting assembly; a first slide groove (2) is provided at the lower end of the base body (1); and a first motor (3) is installed at one end of the first slide groove (2).

3. The LCD screen flatness detection device according to claim 2, characterized in that: A first threaded rod (4) is mounted on the rotating shaft of the first motor (3) via a coupling; a first rotating seat (5) is fixedly connected to the upper end of one side end of the base body (1); and a positioning assembly is provided on the base body (1).

4. The LCD screen flatness detection device according to claim 3, wherein: The positioning assembly includes a support platform (601); the support platform (601) and the base body (1) are arranged to be slidably connected via a first sliding groove (2); the first threaded rod (4) and the support platform (601) are arranged to be clearance-fitted; and a support groove (602) is provided at the upper end of the support platform (601).

5. The LCD screen flatness detection device according to claim 3, wherein: A second motor (603) is mounted on the lower end of the first rotating seat (5); a rotating frame (604) is mounted on the rotating shaft of the second motor (603) via a coupling; a second rotating seat (605) is fixedly connected to one end of the rotating frame (604); and a guide rod (606) is fixedly connected to the front and rear ends of the second rotating seat (605).

6. The LCD screen flatness detection device according to claim 5, characterized in that: A rotating knob (607) is rotatably connected to the second rotating seat (605); a second threaded rod (608) is fixedly connected to the rotating knob (607); a slider (609) is fitted in the outer clearance of the second threaded rod (608); the slider (609) and the guide rod (606) are arranged to be slidably connected; a positioning rod (610) is fixedly connected to one end of the slider (609); and the positioning rod (610) and the first mounting block (701) are arranged to correspond to each other.

7. The LCD screen flatness detection device according to claim 3, characterized in that: A rotating table (8) is rotatably connected to the first rotating seat (5) via a rotating shaft; connecting blocks (9) are provided at both ends of the rotating table (8); a plug-in plate rack (10) is installed on the connecting block (9); and a standard plate (11) is slidably connected to the plug-in plate rack (10).

8. The LCD screen flatness detection device according to claim 7, characterized in that: A support frame (12) is fixedly connected to the upper end of the rotating table (8); a second slide groove (13) is provided on the support frame (12); and a light source generator (14) is slidably connected between the two support frames (12) via the second slide groove (13).

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