LCD high and low temperature testing device

Abstract

The utility model provides an LCD high and low temperature testing device, which comprises a testing assembly, an adjusting and placing assembly and a support frame structure, and is characterized in that the adjusting and placing assembly comprises a bottom plate, and a first adjusting plate, a second adjusting plate, a third adjusting plate and a placing plate which are sequentially arranged at the center of the top of the bottom plate; a first pushing part for pushing the first adjusting plate to move in the length direction of the bottom plate, a second pushing part for pushing the second adjusting plate, and a third pushing part for pushing the third adjusting plate to move in the width direction of the bottom plate are arranged on the bottom plate, and a CCD part and a three-dimensional adjusting assembly are arranged on the support structure. A first sliding structure, an FPC connecting plate arranged on the first sliding structure in a sliding mode and an FPC fixing plate connected to the bottom of the FPC connecting plate are arranged on the three-dimensional adjusting assembly, the FPC fixing plate is arranged above the containing plate, an FPC groove matched with an FPC is formed in the bottom of the FPC fixing plate, and a pressing strip used for connecting the FPC and an LCD is arranged on the side, facing the containing position, of the FPC groove.

Description

Technical Field

[0001] The utility model relates to the technical field of LCD, in particular to a high and low temperature testing device for LCD. Background Art

[0002] Liquid crystal glass substrate (LCD) is the basic component of liquid crystal display module. After the assembly of the liquid crystal display module is completed, the LCD needs to be tested for high and low temperatures to prevent the LCD from having screen distortion, image smearing, inability to display dynamic images normally, and black screen problems in extreme weather conditions (high or low temperatures).

[0003] In the prior art, the high and low temperature test of LCD is to place the liquid crystal display module equipped with LCD into a special high temperature constant humidity oven for 2 hours for heating, and then place it into a special low temperature low humidity oven for 2 hours for cooling. After heating and cooling, it is necessary to check whether the LCD is normal. If the LCD is abnormal during this period, the liquid crystal display module needs to be marked and returned to the disassembly department for replacement of the LCD before the high and low temperature test of the LCD is carried out. However, rework and disassembly greatly affect the efficiency of the high and low temperature test of the LCD. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide an LCD high and low temperature testing device, which can effectively solve the deficiencies in the above-mentioned prior art.

[0005] An LCD high and low temperature testing device, comprising:

[0006] Test components;

[0007] The test assembly includes a control structure for controlling the driving structure and the LCD heating or cooling, and a PG signal processor connected to one side of the control structure for sending and monitoring test signals;

[0008] Adjust placement components;

[0009] The adjusting and placing assembly comprises a bottom plate arranged on the top of the control structure, and a first adjusting plate, a second adjusting plate, a third adjusting plate and a placing plate for placing the LCD which are arranged in sequence on the top center of the bottom plate, a first pushing component for pushing the first adjusting plate to move along the length direction of the bottom plate, a second pushing component and a third pushing component for respectively pushing the second adjusting plate and the third adjusting plate to move along the width direction of the bottom plate are arranged on the bottom plate, and a limit block is also arranged on the bottom plate, and the limit block is arranged on a side of the adjusting and placing assembly away from the first pushing component;

[0010] Three-dimensional adjustment components;

[0011] The three-dimensional adjustment component includes brackets connected to both sides of the top of the base plate, on which a CCD component and a three-dimensional adjustment component for adjusting the three-dimensional position of the CCD component are arranged, and on the three-dimensional adjustment component, a first sliding structure, an FPC connecting plate slidably arranged on the first sliding structure, an FPC fixing plate connected to the bottom of the FPC connecting plate, and a driving structure for driving the FPC fixing plate to slide up and down are arranged, the FPC fixing plate is arranged above the placement plate, and an FPC groove adapted to the FPC is arranged at the bottom of the FPC fixing plate, and a pressure strip for connecting the FPC and the LCD is arranged on the side of the FPC groove facing the placement plate, and the CCD component is used to observe the alignment mark of the LCD and the FPC.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting a test component, adjusting the placement component and the support frame structure, the LCD can be subjected to high and low temperature tests through the utility model; specifically, by placing the LCD on the placement board, installing the FPC that is compatible with the LCD in the FPC slot, adjusting the position of the CCD component through the three-dimensional adjustment component, so that the CCD component can observe the alignment mark of the LCD and the FPC, adjusting the positions of the first adjustment plate, the second adjustment plate and the third adjustment plate through the first pushing component, the second pushing component and the third pushing component respectively so that the alignment position of the LCD coincides with the alignment mark of the FPC, and the driving structure is used to make the FPC connecting plate drive the FPC fixing plate to move downward, so that the FPC is connected to the LCD and the pressure strip is against the placement board, and the LCD is heated to 85°C through the control structure, and then The PG signal processor sends and monitors whether the test signal is normal, and observes the LCD display screen to see if it is normal. When there is no abnormality in the test signal or the LCD display screen, the control structure is used to cool the LCD to -30°C, and the PG signal processor sends and monitors whether the test signal is normal. At the same time, the LCD display screen is observed to see if it is normal, so that the LCD does not need to be installed as a liquid crystal display module and placed in a professional oven for LCD high and low temperature testing. During the LCD high and low temperature testing process, if the test signal or the LCD display screen is abnormal, the driving structure can be used to drive the FPC connecting plate to move the FPC fixing plate upward, so that after the FPC is disconnected from the LCD, the abnormal LCD can be directly taken out for repair and another LCD can be placed in for LCD high and low temperature testing, thereby increasing the efficiency of the LCD high and low temperature testing.

[0013] Furthermore, a plurality of first axial limiting structures are arranged on the base plate along its length direction, the first axial limiting structures include a first slide rail fixedly connected to the base plate and a plurality of first sliding components slidably arranged on the first slide rail, a first slide groove adapted to the first sliding component is opened on the base plate, and the top of the first sliding component is flush with the top of the base plate.

[0014] Furthermore, the first adjustment plate is threadedly connected to the top of the first sliding component, and a plurality of second axial limiting structures are arranged on the first adjustment plate along its width direction, the second axial limiting structure includes a second slide rail fixedly connected to the first adjustment plate and a plurality of second sliding components slidably arranged on the second slide rail, and a second slide groove adapted to the second sliding component is opened on the first adjustment plate, the top of the second sliding component is higher than the top of the first adjustment plate, and the bottom of the second sliding component is flush with the bottom of the first adjustment plate.

[0015] Furthermore, a second adjustment plate is arranged on the top of the first adjustment plate, the second adjustment plate is threadedly connected to the top of the second sliding component, and a groove adapted to the second sliding component is provided at the bottom of the second adjustment plate, and the depth of the groove is greater than or equal to the height of the second sliding component above the top of the first adjustment plate.

[0016] Furthermore, a third adjustment plate is arranged on the top of the second adjustment plate, four waist-shaped holes are opened on the third adjustment plate, the third adjustment plate is threadedly connected to the second adjustment plate through the waist-shaped holes, a placement plate is threadedly connected to the top of the third adjustment plate, a placement position for placing the LCD is provided on the placement plate, and recesses and removal grooves for taking and placing the LCD are respectively provided on both sides of the placement plate.

[0017] Furthermore, the CCD component includes a first CCD structure and a second CCD structure, the three-dimensional adjustment component includes an X-axis adjustment component connected to the bracket for adjusting the X-axis position of the first CCD structure and the second CCD structure, the X-axis adjustment component includes a pillar connected to the bracket, a second sliding structure connected to the two pillars, and a back plate, the first sliding structure is connected to the bottom of the back plate, the driving structure is arranged on the side of the back plate away from the second sliding structure, and a swing connecting piece for installing a CCD display screen and a universal lamp is also movably connected to the back plate, the swing connecting piece is arranged on both sides of the driving structure, and a first fixed plate and a second fixed plate are slidably arranged on the second sliding structure.

[0018] Furthermore, a connecting plate is connected to the first fixed plate and the second fixed plate, and a Z-axis adjustment component for adjusting the Z-axis position of the first CCD structure and the second CCD structure is connected to the connecting plate, and the Z-axis adjustment component includes a first push-pull structure connected to the connecting plate on the side facing the back plate and a top cross plate connected to the bottom of the first push-pull structure, the first push-pull structure includes a first box body connected to the connecting plate, a first push block and a first connecting rod with one end connected to the first push block, a first through hole for installing a first elastic structure is opened in the first box body, the aperture of the first through hole toward one end of the first push block is between the first elastic structure and the first connecting rod, the aperture of the first through hole at other positions is adapted to the first elastic structure, the other end of the first connecting rod passes through the first through hole and is connected to the top of the top cross plate, and the first elastic structure is sleeved on the part of the first connecting rod extending into the first box body, and a first top screw is also threadedly connected to the first push block.

[0019] Furthermore, a Y-axis adjustment component for adjusting the Y-axis position of the first CCD structure and the second CCD structure is connected to the bottom of the top horizontal plate, the Y-axis adjustment component includes a vertical plate connected to the bottom of the top horizontal plate, a bottom horizontal plate connected to the bottom of the vertical plate, and a second push-pull structure arranged on the bottom horizontal plate, the second push-pull structure includes a second box body, a second push block connected to the top of the bottom horizontal plate away from one end of the vertical plate, and a second connecting rod with one end connected to the second push block, a second through hole for installing the second elastic structure is opened in the second box body, the aperture of the second through hole toward the end of the second push block 74 is between the second elastic structure and the second connecting rod, the aperture of the second through hole at other positions is adapted to the second elastic structure, the other end of the second connecting rod passes through the second through hole and is connected to the vertical plate, and the second elastic structure is sleeved on the part of the second connecting rod extending into the second box body, and a second top screw is also threadedly connected to the second push block, and the first CCD structure and the second CCD structure are respectively arranged on the second box body.

[0020] Furthermore, a first spring groove for installing a third elastic structure is provided on the bottom plate, and two ends of the first spring groove are respectively connected to the first spring groove and the bottom of the first adjustment plate; a second spring groove for installing a fourth elastic structure is provided on the first adjustment plate, and two ends of the second spring groove are respectively connected to the second spring groove and the bottom of the second adjustment plate; a third spring groove for installing a fifth elastic structure is provided on the second adjustment plate, and two ends of the third spring groove are respectively connected to the third spring groove and the bottom of the third adjustment plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a first viewing angle of the LCD high and low temperature testing device in Example 1 of the utility model;

[0022] Figure 2 This is a second viewing angle schematic diagram of the LCD high and low temperature testing device in Example 1 of the utility model;

[0023] Figure 3 This is a schematic diagram of the overall structure of the bottom plate in the embodiment of the utility model;

[0024] Figure 4 This is a schematic diagram of the overall structure of the placement plate in the embodiment of the utility model;

[0025] Figure 5 This is a schematic diagram of the overall structure of the third adjustment plate in the embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of the second adjustment plate in the embodiment of the utility model;

[0027] Figure 7 This is a schematic diagram of the overall structure of the first adjustment plate in the embodiment of the utility model;

[0028] Figure 8 A perspective view of a Y-axis adjustment component and a Z-axis adjustment component in an embodiment of the utility model;

[0029] Fig. 9 This is a schematic diagram of the overall structure of the FPC fixing plate in the embodiment of the utility model;

[0030] Description of main component symbols:

[0031]

[0032]

[0033] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0035] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "first", "second" and similar expressions used herein are for illustrative purposes only.

[0036] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0037] See also Figures 1 to 9 The LCD high and low temperature testing device in the embodiment of the utility model includes a testing component 10, an adjustment and placement component 20 arranged on the testing component 10, and a three-dimensional adjustment component arranged on the adjustment and placement component 20.

[0038] The test assembly 10 includes a control structure 11 for controlling the driving structure 100 and the heating or cooling of the LCD, and a PG signal processor 12 connected to one side of the control structure 11 for sending and monitoring test signals.

[0039] The adjustment and placement component 20 includes a bottom plate 21 arranged on the top of the control structure 11, and a first adjustment plate 22, a second adjustment plate 23, a third adjustment plate 24 and a placement plate 25 for placing the LCD, which are arranged in sequence on the top center of the bottom plate 21. A first pushing component 26 for pushing the first adjustment plate 22 to move along the length direction of the bottom plate 21, a second pushing component 27 and a third pushing component 28 for pushing the second adjustment plate 23 and the third adjustment plate 24 to move along the width direction of the bottom plate are provided on the bottom plate 21. A limit block 29 is also provided on the bottom plate 21. The limit block 29 is provided on the side of the adjustment and placement component 20 away from the first pushing component 26.

[0040] Two first axial limiting structures 211 are arranged on the bottom plate 21 along its length direction, and the first axial limiting structure 211 includes a first slide rail 212 fixedly connected to the bottom plate 21 and two first sliding components 213 slidably arranged on the first slide rail 212. A first slide groove adapted to the first sliding component 213 is opened on the bottom plate 21, and the top of the first sliding component 213 is flush with the top of the bottom plate.

[0041] The first adjustment plate 22 is threadedly connected to the top of the first sliding component 213, and two second axial limiting structures 221 are arranged on the first adjustment plate 22 along its width direction. The second axial limiting structure 221 includes a second slide rail 222 fixedly connected to the first adjustment plate 22 and two second sliding components 223 slidably arranged on the second slide rail 222. A second slide groove adapted to the second sliding component 223 is opened on the first adjustment plate 22, the top of the second sliding component 223 is higher than the top of the first adjustment plate 22, and the bottom of the second sliding component 223 is flush with the bottom of the first adjustment plate 22.

[0042] It can be understood that the first adjusting plate 22 threadedly connected to the top of the first sliding member 213 can be slid on the bottom plate 21 toward the limiting block 29 through the first pushing member 26 .

[0043] A second adjustment plate 23 is arranged on the top of the first adjustment plate 22, and the second adjustment plate 23 is threadedly connected to the top of the second sliding component 223. A groove adapted to the second sliding component 223 is provided at the bottom of the second adjustment plate 23, and the depth of the groove is greater than or equal to the height of the second sliding component 223 above the top of the first adjustment plate 22.

[0044] It can be understood that the second adjusting plate 23 threadedly connected to the top of the second sliding member 223 can be moved on the first adjusting plate 22 along the width direction of the bottom plate through the second pushing member 27 .

[0045] A third adjustment plate 24 is disposed on the top of the second adjustment plate 23 . Four waist-shaped holes 241 are formed on the third adjustment plate 24 . The third adjustment plate 24 is threadedly connected to the second adjustment plate 23 through the waist-shaped holes 241 .

[0046] It can be understood that the third adjusting plate 24 threadedly connected to the top of the second adjusting plate 23 can be moved along the width direction of the bottom plate 21 through the gap of the waist-shaped hole 241 on the second adjusting plate 23 by the third pushing component 28 .

[0047] A placement plate 25 is threadedly connected to the top of the third adjustment plate 24 . A placement position 251 for placing an LCD is provided on the placement plate 25 . A recess 252 and a take-out slot 253 for taking and placing the LCD are respectively provided on both sides of the placement plate 25 .

[0048] Furthermore, a first spring groove for installing a third elastic structure 214 is provided on the base plate 21, and two ends of the first spring groove are respectively connected to the first spring groove and the bottom of the first adjustment plate 22; a second spring groove for installing a fourth elastic structure 224 is provided on the first adjustment plate 22, and two ends of the second spring groove are respectively connected to the second spring groove and the bottom of the second adjustment plate 23; a third spring groove for installing a fifth elastic structure 231 is provided on the second adjustment plate 23, and two ends of the third spring groove are respectively connected to the third spring groove and the bottom of the third adjustment plate 24.

[0049] It can be understood that by setting the placement position 251, the placement accuracy of the LCD is improved; by setting the recess 252 and the retrieval slot 253, it is convenient for the staff to take and place the LCD; by setting the first pushing component 26, the second pushing component 27 and the third pushing component 28, the position of the LCD placed in the placement position 251 can be positively adjusted; by setting the third elastic structure 214, the fourth elastic structure 224 and the fifth elastic structure 231, the position of the LCD placed in the placement position 251 can be reversely adjusted through the contraction force of the third elastic structure 214, the fourth elastic structure 224 and the fifth elastic structure 231.

[0050] The three-dimensional adjustment component includes a bracket 30 connected to both sides of the top of the base plate 21, and a CCD component 40 for observing the alignment mark between the LCD and the FPC and a three-dimensional adjustment component for adjusting the three-dimensional position of the CCD component 40 are arranged on the bracket 30. The CCD component 40 includes a first CCD structure 41 and a second CCD structure 42. A first sliding structure 80, an FPC connecting plate 81 slidably arranged on the first sliding structure 80, an FPC fixing plate 82 connected to the bottom of the FPC connecting plate 81, and a driving structure 100 for driving the FPC fixing plate 82 to slide up and down are arranged on the three-dimensional adjustment component. The FPC fixing plate 82 is arranged above the placement plate 25, and an FPC groove 83 adapted to the FPC is arranged at the bottom of the FPC fixing plate 82, and a pressure strip 84 for connecting the FPC and the LCD is arranged on the side of the FPC groove 83 facing the placement plate 25.

[0051] It can be understood that by setting the FPC slot 83, an FPC compatible with the LCD can be installed in the FPC slot 83, and by setting the driving structure 100, the FPC connecting plate 81 and the FPC fixing plate 82 can be driven downward by the driving structure 100, so that the FPC is connected to the LCD and the pressure strip 84 is against the placement plate 25.

[0052] The three-dimensional adjustment component includes an X-axis adjustment component 50 connected to the bracket 30 for adjusting the X-axis position of the first CCD structure 41 and the second CCD structure 42. The X-axis adjustment component 50 includes a pillar 51 connected to the bracket 30, a second sliding structure 52 connected to the two pillars 51, and a back plate 53. The first sliding structure 80 is connected to the bottom of the back plate 53. The driving structure 100 is arranged on the side of the back plate 53 away from the second sliding structure 52. A first fixed plate 54 and a second fixed plate 55 are slidably arranged on the second sliding structure 52.

[0053] It can be understood that the driving structure 100 drives the first fixing plate 54 and the second fixing plate 55 to slide on the second sliding structure 52, so that the X-axis positions of the first CCD structure 41 and the second CCD structure 42 are adjusted.

[0054] The first fixing plate 54 and the second fixing plate 55 are both connected to a connecting plate 56, and a Z-axis adjusting component 60 for adjusting the Z-axis position of the first CCD structure 41 and the second CCD structure 42 is connected to the connecting plate 56. The Z-axis adjusting component 60 includes a first push-pull structure connected to the connecting plate 56 on the side facing the back plate 53 and a top horizontal plate 66 connected to the bottom of the first push-pull structure. The first push-pull structure includes a first box body 61 connected to the connecting plate 56, a first push block 62, and a first connecting member 61 connected to the first push block 62 at one end. The connecting rod 63 has a first through hole for installing the first elastic structure 64 in the first box body 61, the aperture of the first through hole facing one end of the first push block 62 is between the first elastic structure 64 and the first connecting rod 63, the aperture of the first through hole at other positions is adapted to the first elastic structure 64, the other end of the first connecting rod 63 passes through the first through hole and is connected to the top of the top cross plate 66, and the first elastic structure 64 is sleeved on the part of the first connecting rod 63 extending into the first box body 61, and the first push block 62 is also threaded with a first top screw 65.

[0055] It can be understood that by rotating the first top screw 65 in the positive direction, the first connecting rod 63, the first push block 62 connected at both ends of the first connecting rod 63, and the top cross plate 66 are driven to slide upward on the first box body 61, so that the Z-axis position of the first CCD structure 41 and the second CCD structure 42 is reversely adjusted. By rotating the first top screw 65 in the reverse direction and setting the first elastic structure 64, the tension of the first elastic structure 64 is generated, thereby driving the first connecting rod 63, the first push block 62 connected at both ends of the first connecting rod 63, and the top cross plate 66 to slide downward on the first box body 61, so that the Z-axis position of the first CCD structure 41 and the second CCD structure 42 is positively adjusted.

[0056] A Y-axis adjustment component 70 for adjusting the Y-axis position of the first CCD structure 41 and the second CCD structure 42 is connected to the bottom of the top horizontal plate 66. The Y-axis adjustment component 70 includes a vertical plate 71 connected to the bottom of the top horizontal plate 66, a bottom horizontal plate 72 connected to the bottom of the vertical plate 71, and a second push-pull structure arranged on the bottom horizontal plate 72. The second push-pull structure includes a second box body 73, a second push block 74 connected to the top of the bottom horizontal plate 72 away from one end of the vertical plate 71, and a second connecting rod 75 with one end connected to the second push block 74. A second push-pull structure is provided in the second box body 73 for installing the second The second through hole of the elastic structure 76, the aperture of the second through hole toward one end of the second push block 74 is between the second elastic structure 76 and the second connecting rod 75, the aperture of the second through hole at other positions is adapted to the second elastic structure 76, the other end of the second connecting rod 75 is connected to the vertical plate 71 through the second through hole, and the second elastic structure 76 is sleeved on the part of the second connecting rod 75 extending into the second box body 73, and a second top screw 77 is also threadedly connected to the second push block 74, and the first CCD structure 41 and the second CCD structure 42 are respectively arranged on the second box body 73.

[0057] It can be understood that by rotating the second top screw 77 in the positive direction, the second box body 73 is pushed to move toward the vertical plate 71, so that the Y-axis positions of the first CCD structure 41 and the second CCD structure 42 are adjusted in the opposite direction. By rotating the second top screw 77 in the opposite direction and setting the second elastic structure 76, the tension of the second elastic structure 76 pushes the second box body 73 away from the vertical plate 71, so that the Y-axis positions of the first CCD structure 41 and the second CCD structure 42 are adjusted in the positive direction.

[0058] It can be understood that by setting the X-axis adjustment component 50, the Z-axis adjustment component 60 and the Y-axis adjustment component 70, the three-dimensional positions of the first CCD structure 41 and the second CCD structure 42 can be adjusted, which is convenient for the operator to find the LCD alignment position through the CCD component 40.

[0059] Furthermore, a swing connector 90 for mounting a CCD display screen and a universal lamp is movably connected to the back plate 53 , and the swing connector 90 is disposed on both sides of the driving structure 100 .

[0060] It can be understood that by placing the LCD on the placement position 251, the FPC adapted to the LCD is installed in the FPC slot 83, and the three-dimensional positions of the first CCD structure 41 and the second CCD structure 42 are adjusted respectively through the X-axis adjustment component 50, the Z-axis adjustment component 60 and the Y-axis adjustment component 70, so that the alignment mark of the LCD and the FPC can be observed through the first CCD structure 41 and the second CCD structure 42, and the positions of the first adjustment plate 22, the second adjustment plate 23 and the third adjustment plate 24 are adjusted respectively through the first pushing component 26, the second pushing component 27 and the third pushing component 28, so that the alignment position of the LCD coincides with the alignment mark of the FPC, and the driving structure 100 is used so that the FPC connecting plate 81 and the FPC fixing plate 82 can be driven to move downward by the driving structure 100, so that the FPC is connected to the LCD and the pressure bar 84 is against the On the placement plate 25, the LCD is heated to 85°C through the control structure 11, and the test signal is sent and monitored by the PG signal processor 12 to see if it is normal. At the same time, the LCD display screen is observed to see if it is normal. When there is no abnormality in the test signal or the LCD display screen, the LCD is cooled to minus 30°C through the control structure 11, and the test signal is sent and monitored by the PG signal processor 12 to see if it is normal. At the same time, the LCD display screen is observed to see if it is normal. This allows the LCD to be placed in a professional oven for high and low temperature testing without being installed as a liquid crystal display module. During the LCD high and low temperature testing process, when the test signal or the LCD display screen is abnormal, the drive structure 100 can be used to drive the FPC connecting plate 81 and the FPC fixing plate 82 to move upward. After the FPC is disconnected from the LCD, the abnormal LCD can be directly taken out for repair and another LCD can be placed in for LCD high and low temperature testing, thereby increasing the efficiency of the LCD high and low temperature testing.

[0061] In summary, the LCD high and low temperature testing device in the above-mentioned embodiment of the utility model can perform high and low temperature testing on the LCD by setting a test component, adjusting the placement component and the support frame structure; specifically, by placing the LCD on the placement board, installing the FPC compatible with the LCD in the FPC slot, adjusting the position of the CCD component by the three-dimensional adjustment component, so that the CCD component can observe the alignment mark of the LCD and the FPC, adjusting the positions of the first adjustment plate, the second adjustment plate and the third adjustment plate by the first pushing component, the second pushing component and the third pushing component respectively so that the alignment position of the LCD coincides with the alignment mark of the FPC, and the driving structure is used to make the FPC connecting plate drive the FPC fixing plate to move downward, so that the FPC is connected to the LCD and the pressure strip is against the placement board, and the LCD is heated to 85°C by the control structure. , the test signal is sent and monitored by the PG signal processor, and the LCD display screen is observed to be normal. When there is no abnormality in the test signal or the LCD display screen, the LCD is cooled to minus 30℃ through the control structure, and the test signal is sent and monitored by the PG signal processor. At the same time, the LCD display screen is observed to be normal. This allows the LCD to be placed in a professional oven for high and low temperature testing without being installed as a liquid crystal display module. During the LCD high and low temperature testing process, if the test signal or the LCD display screen is abnormal, the FPC connecting plate can be used through the driving structure to drive the FPC fixing plate to move upward, so that after the FPC is disconnected from the LCD, the abnormal LCD can be directly taken out for repair and another LCD can be placed in for LCD high and low temperature testing, thereby increasing the efficiency of the LCD high and low temperature testing.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0063] The above-mentioned embodiments only express several implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An LCD high and low temperature testing device, characterized in that: include: Test components; The test assembly includes a control structure for controlling the driving structure and the LCD heating or cooling, and a PG signal processor connected to one side of the control structure for sending and monitoring test signals; Adjust placement components; The adjusting and placing assembly comprises a bottom plate arranged on the top of the control structure, and a first adjusting plate, a second adjusting plate, a third adjusting plate and a placing plate for placing the LCD which are arranged in sequence on the top center of the bottom plate, a first pushing component for pushing the first adjusting plate to move along the length direction of the bottom plate, a second pushing component and a third pushing component for respectively pushing the second adjusting plate and the third adjusting plate to move along the width direction of the bottom plate are arranged on the bottom plate, and a limit block is also arranged on the bottom plate, and the limit block is arranged on a side of the adjusting and placing assembly away from the first pushing component; Three-dimensional adjustment components; The three-dimensional adjustment component includes brackets connected to both sides of the top of the base plate, on which a CCD component and a three-dimensional adjustment component for adjusting the three-dimensional position of the CCD component are arranged, and on the three-dimensional adjustment component, a first sliding structure, an FPC connecting plate slidably arranged on the first sliding structure, an FPC fixing plate connected to the bottom of the FPC connecting plate, and a driving structure for driving the FPC fixing plate to slide up and down are arranged, the FPC fixing plate is arranged above the placement plate, and an FPC groove adapted to the FPC is arranged at the bottom of the FPC fixing plate, and a pressure strip for connecting the FPC and the LCD is arranged on the side of the FPC groove facing the placement plate, and the CCD component is used to observe the alignment mark of the LCD and the FPC.

2. The LCD high and low temperature testing device according to claim 1, characterized in that: A plurality of first axial limiting structures are arranged on the base plate along its length direction, the first axial limiting structures include a first slide rail fixedly connected to the base plate and a plurality of first sliding components slidably arranged on the first slide rail, a first slide groove adapted to the first sliding component is opened on the base plate, and the top of the first sliding component is flush with the top of the base plate.

3. The LCD high and low temperature testing device according to claim 2, characterized in that: The first adjustment plate is threadedly connected to the top of the first sliding component, and a plurality of second axial limiting structures are arranged on the first adjustment plate along its width direction. The second axial limiting structure includes a second slide rail fixedly connected to the first adjustment plate and a plurality of second sliding components slidably arranged on the second slide rail. A second slide groove adapted to the second sliding component is provided on the first adjustment plate, the top of the second sliding component is higher than the top of the first adjustment plate, and the bottom of the second sliding component is flush with the bottom of the first adjustment plate.

4. The LCD high and low temperature testing device according to claim 3, characterized in that: A second adjustment plate is arranged on the top of the first adjustment plate, and the second adjustment plate is threadedly connected to the top of the second sliding component. A groove adapted to the second sliding component is arranged on the bottom of the second adjustment plate, and the depth of the groove is greater than or equal to the height of the second sliding component above the top of the first adjustment plate.

5. The LCD high and low temperature testing device according to claim 4, characterized in that: A third adjustment plate is arranged on the top of the second adjustment plate, and four waist-shaped holes are opened on the third adjustment plate. The third adjustment plate is threadedly connected to the second adjustment plate through the waist-shaped holes. A placement plate is threadedly connected to the top of the third adjustment plate, and a placement position for placing the LCD is provided on the placement plate. Recesses and removal grooves for taking and placing the LCD are respectively provided on both sides of the placement plate.

6. The LCD high and low temperature testing device according to claim 1, characterized in that: The CCD component includes a first CCD structure and a second CCD structure, the three-dimensional adjustment component includes an X-axis adjustment component connected to the bracket for adjusting the X-axis position of the first CCD structure and the second CCD structure, the X-axis adjustment component includes a pillar connected to the bracket, a second sliding structure connected to the two pillars and a back plate, the first sliding structure is connected to the bottom of the back plate, the driving structure is arranged on the side of the back plate away from the second sliding structure, and a swing connecting piece for installing a CCD display screen and a universal lamp is also movably connected to the back plate, the swing connecting piece is arranged on both sides of the driving structure, and a first fixed plate and a second fixed plate are slidably arranged on the second sliding structure.

7. The LCD high and low temperature testing device according to claim 6, characterized in that: The first fixed plate and the second fixed plate are both connected to a connecting plate, and a Z-axis adjustment component for adjusting the Z-axis position of the first CCD structure and the second CCD structure is connected to the connecting plate, and the Z-axis adjustment component includes a first push-pull structure connected to the connecting plate on the side facing the back plate and a top cross plate connected to the bottom of the first push-pull structure, the first push-pull structure includes a first box body connected to the connecting plate, a first push block and a first connecting rod with one end connected to the first push block, a first through hole for installing a first elastic structure is opened in the first box body, the aperture of the first through hole toward one end of the first push block is between the first elastic structure and the first connecting rod, the aperture of the first through hole at other positions is adapted to the first elastic structure, the other end of the first connecting rod passes through the first through hole and is connected to the top of the top cross plate, and the first elastic structure is sleeved on the part of the first connecting rod extending into the first box body, and a first top screw is also threadedly connected to the first push block.

8. The LCD high and low temperature testing device according to claim 7, characterized in that: A Y-axis adjustment component for adjusting the Y-axis position of the first CCD structure and the second CCD structure is connected to the bottom of the top horizontal plate, the Y-axis adjustment component includes a vertical plate connected to the bottom of the top horizontal plate, a bottom horizontal plate connected to the bottom of the vertical plate, and a second push-pull structure arranged on the bottom horizontal plate, the second push-pull structure includes a second box body, a second push block connected to the top of the bottom horizontal plate away from one end of the vertical plate, and a second connecting rod with one end connected to the second push block, a second through hole for installing the second elastic structure is opened in the second box body, the aperture of the second through hole facing the end of the second push block 74 is between the second elastic structure and the second connecting rod, the aperture of the second through hole at other positions is adapted to the second elastic structure, the other end of the second connecting rod passes through the second through hole and is connected to the vertical plate, and the second elastic structure is sleeved on the part of the second connecting rod extending into the second box body, and a second top screw is also threadedly connected to the second push block, and the first CCD structure and the second CCD structure are respectively arranged on the second box body.

9. The LCD high and low temperature testing device according to claim 1, characterized in that: A first spring groove for installing a third elastic structure is also provided on the bottom plate, and two ends of the first spring groove are respectively connected to the first spring groove and the bottom of the first adjustment plate; a second spring groove for installing a fourth elastic structure is provided on the first adjustment plate, and two ends of the second spring groove are respectively connected to the second spring groove and the bottom of the second adjustment plate; a third spring groove for installing a fifth elastic structure is provided on the second adjustment plate, and two ends of the third spring groove are respectively connected to the third spring groove and the bottom of the third adjustment plate.

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