Light leakage prevention lighting machine table

Abstract

The utility model provides a light leakage prevention lighting machine table which is used for carrying out a display screen lighting test and comprises a supporting plate, the supporting plate is provided with a plurality of counterbores, the bottoms of the counterbores are communicated with a vacuum pipeline, the tops of the counterbores are provided with supporting protrusions, the bottoms of the supporting protrusions are fixedly connected with steps in the counterbores, and the supporting protrusions are fixedly connected with the steps in the counterbores. A vacuum hole communicated with the counterbore penetrates through the supporting protrusion, the supporting protrusion is higher than the supporting plate, the display screen is adsorbed to the supporting protrusion through the vacuum hole, a connecting plate is fixed to one side of the supporting plate, a guide groove is formed in the connecting plate, a mounting groove is formed in the side, away from the supporting plate, of the guide groove, and a lightening jig is detachably arranged on the mounting groove. A connector is arranged on the lightening jig, the flexible circuit board of the display screen is electrically connected with the connector after passing through the guide groove, and the end, away from the flexible circuit board, of the connector is electrically connected with an external power source. According to the light leakage prevention lighting machine table, the stress of the display screen is uniform, and the test effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display screen testing, in particular to a light leakage prevention lighting machine. Background Art

[0002] With the rapid development of the electronics industry, more and more electronic products have entered people's work and life. LCD (Liquid Crystal Display), also known as liquid crystal display, is a flat and ultra-thin display device with very low power consumption, so it is favored by engineers.

[0003] Display screens need to undergo rigorous testing before leaving the factory, and can only be put on the market after passing the test. Among the many tests, the lighting test is a relatively important link. The lighting test can timely determine whether the display screen can be lit, whether the light is uniform after lighting, whether there will be dark spots, etc. At present, during the lighting test of the display screen, the test machine only supports the product on all four sides, and the middle of the display screen is hollow, causing the product to deform under stress in the middle; during the test, the product may leak light on all four sides or the brightness of the display screen may be uneven, which affects the test results. Utility Model Content

[0004] Based on this, the purpose of the utility model is to provide a light leakage prevention lighting machine to solve the technical problems existing in the prior art.

[0005] The utility model provides an anti-leakage light lighting machine, which is used for performing a display screen lighting test. The anti-leakage light lighting machine comprises a support plate, a plurality of countersunk holes are provided on the support plate, the bottom of the countersunk holes is communicated with a vacuum pipe, a support protrusion is provided on the top of the countersunk hole, the bottom of the support protrusion is fixedly connected to a step in the countersunk hole, a vacuum hole connected with the countersunk hole is penetrated in the support protrusion, the support protrusion is higher than the support plate, the display screen is adsorbed on the support protrusion through the vacuum hole, a connecting plate is fixed on one side of the support plate, a guide groove is provided on the connecting plate, a mounting groove is provided on a side of the guide groove away from the support plate, a lighting fixture is detachably provided on the mounting groove, a connector is provided on the lighting fixture, a flexible circuit board of the display screen is electrically connected to the connector after passing through the guide groove, and an end of the connector away from the flexible circuit board is electrically connected to an external power supply.

[0006] Preferably, the bottom of the support plate is rotatably connected to a support column, and one end of the support column away from the support plate is fixedly connected to a base.

[0007] Preferably, a universal ball head is provided at the bottom of the support plate, and a universal ball seat is provided at one end of the support column close to the support plate, and the universal ball head cooperates with the universal ball seat to enable the support plate to rotate relative to the support column.

[0008] Preferably, a first avoidance groove and a containing groove are provided on the support plate, wherein the first avoidance groove is used to avoid components at the bottom of the display screen, and the containing groove is used to accommodate a wiring harness when testing the display screen.

[0009] Preferably, two pick-up and placement grooves are provided on the connecting plate, and the two pick-up and placement grooves are respectively arranged on two opposite sides of the guiding groove.

[0010] Preferably, the lighting fixture comprises a base plate and a cover plate which are rotatably connected, the base plate is detachably connected to the mounting groove, and a locking piece is provided at one end of the cover plate away from its rotation axis, and the locking piece is used to lock the base plate and the cover plate.

[0011] Preferably, a second avoidance groove is provided on the cover plate, and the connector portion is arranged in the second avoidance groove.

[0012] Preferably, the supporting protrusion is made of elastic rubber.

[0013] The beneficial effects of the utility model are as follows: the light leakage prevention lighting machine provided by the utility model comprises a support plate, a plurality of countersunk holes are opened on the support plate, a supporting protrusion is arranged on the top of the countersunk hole, a vacuum hole connected with the countersunk hole is penetrated in the support protrusion, a display screen is placed on the support protrusion, the support protrusion is connected with the external vacuum pipeline through the vacuum hole, and then the display screen placed on the support protrusion is adsorbed, the bottom of the display screen is adsorbed by the supporting protrusion through multiple positions and does not contact the support plate, the bottom of the display screen is evenly stressed and not easy to deform, and the phenomenon of light leakage on four sides or uneven brightness during the lighting test is avoided; further, a connecting plate is fixedly provided on one side of the support plate, and a guide groove is provided on the connecting plate for placing the flexible circuit board of the display screen to prevent the flexible circuit board from being folded and twisted and caused damage, and the end of the flexible circuit board is electrically connected to the lighting fixture to realize the lighting test of the display screen, which is suitable for large-scale promotion.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the anti-light leakage lighting machine during lighting test according to an embodiment of the utility model;

[0016] Figure 2 for Figure 1 A schematic diagram of the structure when no display screen is placed;

[0017] Figure 3 for Figure 2 Another perspective structural diagram;

[0018] Figure 4 for Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0019] Figure 5 for Figure 1 Structural schematic diagram of the support plate and the connecting plate;

[0020] Figure 6 for Figure 5 Schematic diagram of the local enlarged structure at point B in the middle.

[0021] Description of main component symbols:

[0022] 10. Support plate; 11. Countersunk hole; 12. Support protrusion; 13. Vacuum hole; 14. Support column; 15. Base; 16. Universal ball head; 17. Universal ball seat; 18. First avoidance groove; 19. Accommodation groove; 20. Display screen; 21. Flexible circuit board; 30. Connecting plate; 31. Guide groove; 32. Mounting groove; 33. Lighting fixture; 331. Bottom plate; 332. Cover plate; 333. Locking piece; 334. Second avoidance groove; 34. Connector; 35. Pick-and-place groove.

[0023] The following specific implementation manner will further illustrate the present utility model in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0024] 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.

[0025] 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", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0026] 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.

[0027] Specifically, Figures 1 to 6 As shown, in the embodiment of the utility model, a light leakage prevention lighting machine provided in the embodiment is used for performing a display screen lighting test, and the light leakage prevention lighting machine comprises a support plate 10, a plurality of countersunk holes 11 are provided on the support plate 10, the bottom of the countersunk holes 11 are connected to a vacuum pipe (not shown in the figure), a support protrusion 12 is provided on the top of the countersunk hole 11, the bottom of the support protrusion 12 is fixedly connected to the step in the countersunk hole 11, a vacuum hole 13 connected to the countersunk hole is penetrated in the support protrusion 12, the support protrusion 12 is higher than the support plate 10, and the display screen 2 0 is adsorbed on the supporting protrusion 12, a connecting plate 30 is fixed on one side of the supporting plate 10, a guiding groove 31 is provided on the connecting plate 30, a mounting groove 32 is provided on the side of the guiding groove 31 away from the supporting plate 10, a lighting fixture 33 is detachably provided on the mounting groove 32, a connector 34 is provided on the lighting fixture 33, the flexible circuit board 21 of the display screen 20 is electrically connected to one end of the connector 34 after passing through the guiding groove 31, and the end of the connector 34 away from the flexible circuit board 21 is electrically connected to an external power supply (not shown in the figure) to realize the lighting test of the display screen.

[0028] Optionally, in the present embodiment, the countersunk hole 11 is provided through the support plate 10, the bottom of the display screen 20 is adsorbed on the front side of the support plate 10, the countersunk hole 11 is provided with a step, the bottom of the supporting protrusion 12 is fixedly connected to the step of the countersunk hole 11, the supporting protrusion 12 is higher than the support plate 10, and the display screen 20 is placed on the supporting protrusion 12; preferably, in the present embodiment, the supporting protrusion 12 is arranged at multiple positions on the surface of the support plate 10 to improve the supporting effect of the display screen 20, and a vacuum hole 13 is provided on the supporting protrusion 12, the vacuum hole 13 is connected to the external vacuum pipeline, and the bottom of the display screen 20 is adsorbed by the vacuum adsorption of the vacuum hole 13 It is adsorbed on the supporting protrusion 12 to prevent it from falling. In the present embodiment, the bottom of the display screen 20 is adsorbed by the supporting protrusion 12 at multiple positions without contacting the supporting plate. The bottom of the display screen 20 is evenly stressed and not easily deformed, thereby avoiding light leakage on the four sides or uneven brightness during the lighting test. Furthermore, a connecting plate 30 is fixedly provided on one side of the supporting plate 10. A guide groove 31 is provided on the connecting plate 30 for placing the flexible circuit board 21 of the display screen 20 to prevent the flexible circuit board 21 from being folded and twisted and caused damage. The end of the flexible circuit board 21 is electrically connected to the lighting fixture 33 to realize the lighting test of the display screen 20.

[0029] Optionally, in this embodiment, if Figure 3 As shown, the bottom of the support plate 10 is rotatably connected to a support column 14, and one end of the support column 14 away from the support plate 10 is fixedly connected to a base 15, and the support plate 10 is rotatably connected to the support column 14. During the test, the support plate 10 can be rotated to observe the display screen 20 from multiple angles. Optionally, in this embodiment, a universal ball head 16 is provided at the bottom of the support plate 10, and a universal ball seat 17 is provided at one end of the support column 14 close to the support plate 10. The universal ball head 16 cooperates with the universal ball seat 17 so that the support plate 10 can rotate freely relative to the support column 14.

[0030] Optionally, in this embodiment, if Figure 6 As shown, the outer dimensions of the support protrusion 12 gradually increase from the surface of the countersunk hole 11 in the direction away from the support plate 10, that is, the support protrusion 12 is an inverted cone structure, which increases the contact area between the support protrusion 12 and the bottom of the display screen 20, thereby improving the adsorption stability; optionally, the support protrusion 12 can be made of elastic rubber material; further, a first avoidance groove 18 and a receiving groove 19 are also provided on the support plate 10, and the depth of the receiving groove 19 is greater than that of the first avoidance groove 18, the first avoidance groove 18 is used to avoid components at the bottom of the display screen 20, and the receiving groove 19 is used to accommodate the wiring harness when testing the display screen.

[0031] Optionally, in this embodiment, if Figure 4 As shown, the connecting plate 30 is provided with two pick-up and placement grooves 35, the depth of the pick-up and placement grooves 35 is greater than the depth of the guide groove 31, and the two pick-up and placement grooves 35 are symmetrically arranged on both sides of the guide groove 31, and the pick-up and placement grooves 35 are used to facilitate the pick-up and extension of the flexible circuit board 21; further, as Figure 1 As shown, the lighting fixture 33 includes a base plate 331 and a cover plate 332 which are rotatably connected. The base plate 331 is detachably connected to the mounting groove 32. Preferably, the base plate 331 is detachably connected to the mounting groove 32 by bolts. The cover plate 332 and the base plate 331 are provided with a locking member 333 at one end away from the rotation axis. When the cover plate 332 is covered on the base plate 331, the cover plate 332 and the base plate 331 are locked by the locking member 333. Furthermore, a second avoidance groove 334 is provided on the cover plate 332. The second avoidance groove 334 is used to leave an avoidance space for the connector 34. When the cover plate 332 is covered on the base plate 331, a part of the connector 34 is arranged in the second avoidance groove 334.

[0032] In summary, the light leakage prevention lighting machine provided in the present embodiment includes a support plate 10, a plurality of countersunk holes 11 are opened on the support plate 10, a support protrusion 12 is provided on the top of the countersunk hole 11, a vacuum hole 13 connected to the countersunk hole is penetrated in the support protrusion 12, and the display screen 20 is placed on the support protrusion 12, and the support protrusion 12 is connected to the external vacuum pipeline through the vacuum hole 13, so as to adsorb the display screen 20 placed on the support protrusion 12, and the bottom of the display screen 20 is adsorbed by the support protrusion 12 at multiple positions without contacting the support plate, and the bottom of the display screen 20 is evenly stressed and not easy to deform, so as to avoid light leakage on four sides or uneven brightness during the lighting test; further, a connecting plate 30 is fixedly provided on one side of the support plate 10, and a guide groove 31 is provided on the connecting plate 30, which is used to place the flexible circuit board 21 of the display screen 20 to prevent the flexible circuit board 21 from being folded and twisted and damaged, and the end of the flexible circuit board 21 is electrically connected to the lighting fixture 33 to realize the lighting test of the display screen 20.

[0033] It should be noted that the above implementation process is only to illustrate the feasibility of the present application, but this does not mean that the anti-light leakage lighting machine of the present application is only subject to the above implementation processes. On the contrary, as long as the anti-light leakage lighting machine of the present application can be implemented, it can be included in the feasible implementation plan of the present application.

[0034] 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.

[0035] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which 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. A light leakage proof lighting machine for performing display lighting test, characterized in that: The anti-leakage light lighting machine includes a support plate, a plurality of countersunk holes are opened on the support plate, the bottom of the countersunk holes is connected to the vacuum pipe, the top of the countersunk holes is provided with a supporting protrusion, the bottom of the supporting protrusion is fixedly connected to the step in the countersunk hole, a vacuum hole connected to the countersunk hole is penetrated through the supporting protrusion, the supporting protrusion is higher than the support plate, the display screen is adsorbed on the supporting protrusion through the vacuum hole, a connecting plate is fixed on one side of the support plate, a guide groove is provided on the connecting plate, a mounting groove is provided on the side of the guide groove away from the support plate, a lighting fixture is detachably provided on the mounting groove, a connector is provided on the lighting fixture, the flexible circuit board of the display screen is electrically connected to the connector after passing through the guide groove, and the end of the connector away from the flexible circuit board is electrically connected to an external power supply.

2. The light leakage prevention lighting machine according to claim 1, characterized in that: The bottom of the support plate is rotatably connected with a support column, and one end of the support column away from the support plate is fixedly connected with a base.

3. The light leakage prevention lighting machine according to claim 2, characterized in that: A universal ball head is provided at the bottom of the support plate, and a universal ball seat is provided at one end of the support column close to the support plate. The universal ball head cooperates with the universal ball seat to enable the support plate to rotate relative to the support column.

4. The light leakage prevention lighting machine according to claim 1, characterized in that: The support plate is provided with a first avoidance groove and a containing groove, wherein the first avoidance groove is used to avoid components at the bottom of the display screen, and the containing groove is used to accommodate a wiring harness when testing the display screen.

5. The light leakage prevention lighting machine according to claim 1, characterized in that: The connecting plate is provided with two taking-and-placing grooves, and the two taking-and-placing grooves are respectively arranged on two opposite sides of the guiding groove.

6. The light leakage prevention lighting machine according to claim 1, characterized in that: The lighting fixture comprises a bottom plate and a cover plate which are rotatably connected, the bottom plate is detachably connected to the mounting groove, and a locking piece is provided at one end of the cover plate away from its rotation axis, and the locking piece is used to lock the bottom plate and the cover plate.

7. The light leakage prevention lighting machine according to claim 6, characterized in that: The cover plate is provided with a second avoidance groove, and the connector portion is arranged in the second avoidance groove.

8. The light leakage prevention lighting machine according to claim 1, characterized in that: The supporting protrusion is made of elastic rubber.

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