Display screen light leakage detection device

Abstract

The utility model discloses a display screen light leakage detection device which comprises a detection table, a detection groove is arranged on the detection table, a side square hole is arranged on the side face of the detection table, a bearing plate is movably inserted into the side square hole, a lower sealing gasket is arranged on the bearing plate, and a sealing end plate is fixedly connected to the outer end of the bearing plate. A light beam groove penetrating through the sealing end plate is formed in the outer end of the bearing plate, a light source is installed at the outer end of the light beam groove, a light beam outlet penetrating through the lower sealing gasket upwards is formed in the inner end of the light beam groove, and a reflective mirror is arranged at the turning position of the light beam outlet and the light beam groove; cylinder shafts of the first air cylinders penetrate through the cover plate downwards and then are connected with pressing plates, upper sealing gaskets are arranged at the bottoms of the pressing plates, and photosensitive sensors are arranged on the side faces of the detection grooves. According to the display screen light leakage detection device, the to-be-detected display screen can be conveniently placed, the light source can be prevented from being directly arranged below the to-be-detected display screen by introducing the transverse light source, and the light source is better protected.

Description

Technical Field

[0001] The utility model relates to the field of display screens, and specifically, to a display screen light leakage detection device. Background Art

[0002] During the manufacturing process of a display screen, light leakage may occur on the side. To prevent this side light leakage phenomenon, an anti-light leakage adhesive tape is pasted on the side of the display screen. After pasting, manual visual inspection is used to detect whether there is light leakage. This method is prone to misjudgment and has low efficiency.

[0003] The patent with the publication number CN217586253U discloses a mobile phone display screen light leakage detection device, which includes a base, an induction detection mechanism, and a sealing and fixing mechanism. The induction detection mechanism and the sealing and fixing mechanism are both arranged on the base, and the sealing and fixing mechanism is arranged above the induction detection mechanism.

[0004] This mobile phone display screen light leakage detection device places the display screen to be detected in the placement groove in a vertical placement manner. During the placement and removal process, the pressing plate needs to be lifted to a sufficiently high position, and it is also easy to collide with the support rod and cause damage during the placement and removal process. Content of the Utility Model

[0005] The purpose of the utility model is to provide a display screen light leakage detection device, which is convenient for placing the display screen to be detected. By introducing a lateral light source, it is possible to avoid directly setting the light source below the display screen to be detected, and better protect the light source.

[0006] To achieve the above purpose, the utility model provides a display screen light leakage detection device, which includes a detection table. A detection groove is arranged on the detection table. A side hole communicating with the detection groove is arranged on the side of the detection table. A carrier plate is movably inserted into the side hole. A lower sealing pad is arranged on the carrier plate. A sealing end plate is fixedly connected to the outer end of the carrier plate. A light beam groove penetrating the sealing end plate is arranged at the outer end of the carrier plate. A light source is installed at the outer end of the light beam groove. A light beam outlet penetrating the lower sealing pad upward is arranged at the inner end of the light beam groove. A reflecting mirror is arranged at the turning position of the light beam outlet and the light beam groove. The reflecting mirror is arranged to reflect the light beam emitted by the light source to vertically upward emit from the light beam outlet. A cover plate for closing the detection groove is arranged on the detection table. A first cylinder is installed on the cover plate. The cylinder shaft of the first cylinder penetrates the cover plate downward and is connected to a pressing plate. An upper sealing pad is arranged at the bottom of the pressing plate. A photosensitive sensor is arranged on the side of the detection groove.

[0007] Preferably, a guiding hole is respectively arranged on the left and right sides of the side hole on the detection table. A polished rod is slidably arranged in the guiding hole. One end of the polished rod is fixedly connected to the sealing end plate, and the other end is connected through a linkage plate. A second cylinder is arranged on the bottom side of the detection table, and the shaft body of the second cylinder is fixedly connected to the linkage plate.

[0008] Preferably, a positioning groove for installing the second cylinder is arranged at the bottom of the detection table.

[0009] Preferably, a dovetail groove extending to the bottom surface of the detection groove is arranged at the bottom side of the side hole, and a dovetail guide rail slidably matched with the dovetail groove is arranged at the bottom side of the bearing plate.

[0010] Preferably, a limiting groove capable of fitting and accommodating the end of the bearing plate is arranged on the side surface of the detection groove at the end facing away from the bearing plate.

[0011] Preferably, the cover plate is installed on the detection table through a plurality of first bolts. Threaded holes matched with the first bolts are arranged on the detection table, and a first annular sealing gasket surrounding the detection groove is arranged on the bottom surface of the cover plate.

[0012] Preferably, a second annular sealing gasket surrounding the side hole is arranged on the inner side of the sealing end plate.

[0013] Preferably, a plurality of limiting right-angle blocks surrounding the light beam outlet are arranged on the bearing plate. The limiting right-angle blocks are glass blocks and are hermetically penetrated through the lower sealing gasket.

[0014] Preferably, the outer end of the light source is installed on the sealing end plate through a plurality of second bolts.

[0015] Preferably, a plurality of support columns are arranged at the bottom of the detection table.

[0016] According to the above technical solution, the present utility model provides a display screen light leakage detection device, including a detection table, a detection groove is provided on the detection table, a side hole communicating with the detection groove is provided on the side of the detection table, a carrier plate is movably inserted into the side hole, a lower sealing gasket is provided on the carrier plate, a sealing end plate is fixedly connected to the outer end of the carrier plate, a light beam groove penetrating through the sealing end plate is provided at the outer end of the carrier plate, a light source is installed at the outer end of the light beam groove, a light beam outlet penetrating upward through the lower sealing gasket is provided at the inner end of the light beam groove, a reflecting mirror is provided at the turning position between the light beam outlet and the light beam groove, and the reflecting mirror is configured to reflect the light beam emitted by the light source vertically upward from the light beam outlet. A cover plate for closing the detection groove is provided on the detection table, a first cylinder is installed on the cover plate, the cylinder shaft of the first cylinder penetrates downward through the cover plate and is connected with a pressing plate, an upper sealing gasket is provided at the bottom of the pressing plate, and a photosensitive sensor is provided on the side of the detection groove.

[0017] The usage method and beneficial effects of the display screen light leakage detection device are as follows: When detection is required, the carrier plate is pulled out, the display screen to be detected is placed on the lower sealing gasket and covers the light beam outlet, and then the carrier plate carrying the display screen to be detected is inserted into the detection groove through the side hole. The outer end of the side hole is sealed by the sealing end plate. Then, the first cylinder is started, so that the pressing plate moves downward and presses the display screen to be detected between the lower sealing gasket and the upper sealing gasket. Then, the light source is turned on, and the light beam is emitted through the light beam groove to the reflecting mirror. The reflecting mirror reflects the light beam upward to the display screen to be detected. Since both sides of the display screen to be detected are sealed and covered by the first sealing gasket and the second sealing gasket, the light beam cannot be emitted from the upper side or the lower side. At this time, if the side of the display screen to be detected leaks light, it can be detected by the provided photosensitive sensor. When the detected light is less than the set threshold, the display screen to be detected is normal. When the detected light is greater than the set threshold, the display screen to be detected is abnormal. The display screen light leakage detection device has a pull-out structure, so that when placing and taking the display screen to be detected, it will not be affected by the detection table and the pressing plate, making it more convenient to place and take. In addition, through the lateral light source, the light source does not need to be directly set at the bottom of the detection groove, which can better protect the light source.

[0018] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0020] Figure 1 It is a schematic structural diagram of the display screen light leakage detection device after the carrier plate is pulled out;

[0021] Figure 2 It is a schematic structural diagram after the carrier plate is inserted in the display screen light leakage detection device;

[0022] Figure 3 It is a schematic top view structural diagram of the display screen light leakage detection device;

[0023] Figure 4 It is Figure 3 The schematic A-A sectional view structure diagram of

[0024] Figure 5 It is a schematic structural diagram of a preferred embodiment of the detection table;

[0025] Figure 6 It is a schematic structural diagram of a preferred embodiment of the carrier plate and its connection structure.

[0026] Explanation of reference numerals

[0027] 1 - Detection table; 2 - Support column; 3 - Cover plate; 4 - First bolt; 5 - First cylinder; 6 - Light rod; 7 - Sealing end plate; 8 - Limit right-angle block; 9 - Second bolt; 10 - Light source; 11 - Carrier plate; 12 - Lower sealing gasket; 13 - Second cylinder; 14 - Shaft body; 15 - Linkage plate; 16 - Beam groove; 17 - Reflecting mirror; 18 - Pressing plate; 19 - Upper sealing gasket; 20 - Photosensitive sensor; 21 - First annular sealing gasket; 22 - Second annular sealing gasket; 23 - Side hole; 24 - Limit groove; 25 - Screw hole; 26 - Detection groove; 27 - Dovetail groove; 28 - Positioning groove; 29 - Guide hole; 30 - Beam outlet; 31 - Dovetail guide rail. Specific embodiments

[0028] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and illustrating the present invention, and are not used to limit the present invention.

[0029] In the present invention, unless otherwise stated, the orientation words contained in terms such as "up and down, left and right, front and back, inside and outside" only represent the orientation of the term in its normal use state, or the common name understood by those skilled in the art, and should not be regarded as a limitation of the term.

[0030] See Figure 1-6The display screen light leakage detection device shown, the display screen light leakage detection device includes a detection table 1, a detection groove 26 is arranged on the detection table 1, a side hole 23 communicating with the detection groove 26 is arranged on the side of the detection table 1, a carrier plate 11 is movably inserted in the side hole 23, a lower sealing gasket 12 is arranged on the carrier plate 11, a sealing end plate 7 is fixedly connected to the outer end of the carrier plate 11, a light beam groove 16 penetrating the sealing end plate 7 is arranged at the outer end of the carrier plate 11, a light source 10 is installed at the outer end of the light beam groove 16, a light beam outlet 30 penetrating the lower sealing gasket 12 upward is arranged at the inner end of the light beam groove 16, a reflecting mirror 17 is arranged at the turning position of the light beam outlet 30 and the light beam groove 16, and the reflecting mirror 17 is arranged to reflect the light beam emitted by the light source 10 vertically upward from the light beam outlet 30. A cover plate 3 for closing the detection groove 26 is arranged on the detection table 1, a first cylinder 5 is installed on the cover plate 3, a pressing plate 18 is connected to the cylinder shaft of the first cylinder 5 after penetrating the cover plate 3 downward, an upper sealing gasket 19 is arranged at the bottom of the pressing plate 18, and a photosensitive sensor 20 is arranged on the side of the detection groove 26.

[0031] By implementing the above technical solution, when detection is required, the carrier plate 11 is pulled out, the display screen to be detected is placed on the lower sealing gasket 12 and covers the light beam outlet 30, and then the carrier plate 11 carrying the display screen to be detected is inserted into the detection groove 26 through the side hole 23. The outer end of the side hole 23 is sealed by the sealing end plate 7. Then, the first cylinder 5 is started, so that the pressing plate 18 moves downward and presses the display screen to be detected between the lower sealing gasket 12 and the upper sealing gasket 19. Then, the light source 10 is turned on, and the light beam is emitted through the light beam groove 16 to the reflecting mirror 17. The reflecting mirror 17 reflects the light beam upward to the display screen to be detected. Since both sides of the display screen to be detected are sealed and covered by the first sealing gasket and the second sealing gasket, the light beam cannot be emitted from the upper side or the lower side. At this time, if the side of the display screen to be detected leaks light, it can be detected by the arranged photosensitive sensor 20. When the detected light is less than the set threshold, the display screen to be detected is normal. When the detected light is greater than the set threshold, the display screen to be detected is abnormal. The display screen light leakage detection device has a pull-out structure, so that when placing and taking the display screen to be detected, it will not be affected by the detection table 1 and the pressing plate 18, making it more convenient to place and take. In addition, through the lateral light source 10, the light source 10 does not need to be directly arranged at the bottom of the detection groove 26, which can better protect the light source 10.

[0032] In this embodiment, a guiding hole 29 is provided on each of the left and right sides of the side hole 23 on the detection table 1. A light rod 6 is slidably arranged in the guiding hole 29. One end of the light rod 6 is fixedly connected to the sealing end plate 7, and the other end is connected through a linkage plate 15. A second cylinder 13 is arranged on the bottom side of the detection table 1, and the shaft body 14 of the second cylinder 13 is fixedly connected to the linkage plate 15. Through such an arrangement, the shaft body 14 of the second cylinder 13 pushes the linkage plate 15, and under the action of the linkage plate 15, the light rod 6 can slide in the guiding hole 29, so as to be able to pull and push the bearing plate 11, thereby facilitating the taking and placing of the display screen to be detected.

[0033] In this embodiment, a positioning groove 28 for installing the second cylinder 13 is provided at the bottom of the detection table 1. Through the arrangement of the positioning groove 28, it is convenient to align the position when installing the second cylinder 13.

[0034] In this embodiment, a dovetail groove 27 extending to the bottom surface of the detection groove 26 is provided at the bottom side of the side hole 23. A dovetail guide rail 31 slidably matched with the dovetail groove 27 is provided at the bottom side of the bearing plate 11. Through the sliding cooperation between the dovetail guide rail 31 and the dovetail groove 27, the moving stability of the bearing plate 11 is improved.

[0035] In this embodiment, a limiting groove 24 capable of fitting and accommodating the end of the bearing plate 11 is provided on the side surface of the detection groove 26 at the end facing away from the bearing plate 11. Through the arrangement of the limiting groove 24, the end of the bearing plate 11 is limited in the limiting groove 24 after being pushed in, further improving the stability of the bearing plate 11.

[0036] In this embodiment, the cover plate 3 is installed on the detection table 1 through a plurality of first bolts 4. A screw hole 25 matched with the first bolt 4 is provided on the detection table 1. A first annular sealing gasket 21 surrounding the detection groove 26 is provided on the bottom surface of the cover plate 3. Through the arrangement of the first annular sealing gasket 21, the sealing performance at the installation position of the cover plate 3 is improved, and external light is prevented from entering.

[0037] In this embodiment, a second annular sealing gasket 22 surrounding the side hole 23 is provided on the inner side of the sealing end plate 7. Through the arrangement of the second annular sealing gasket 22, the sealing performance at the sealing end plate 7 is improved, and external light is prevented from entering.

[0038] In this embodiment, a plurality of limiting right-angle blocks 8 are provided on the carrier plate 11 around the light beam outlet 30. The limiting right-angle blocks 8 are glass blocks and are hermetically penetrated through the lower gasket 12. By providing the plurality of limiting right-angle blocks 8, the display screen to be detected placed can be limited. In one embodiment, four limiting right-angle blocks 8 can be provided, which are respectively arranged at the four corner positions of the display screen to be detected. The limiting right-angle blocks 8 are made of glass, which can avoid the difficulty in detection due to light leakage at the position of the limiting right-angle blocks 8 when the display screen to be detected.

[0039] In this embodiment, in order to further provide an installation method for the light source 10, the outer end of the light source 10 is installed on the sealing end plate 7 through a plurality of second bolts 9. Through such a setting, it is convenient to disassemble the light source 10 for later maintenance. The light beam of the light source 10 can adopt a rectangular light beam. As a supporting use, both the light beam groove 16 and the light beam outlet 30 are rectangular to enhance the detection effect.

[0040] In this embodiment, a plurality of support columns 2 are provided at the bottom of the detection table 1. By providing the plurality of support columns 2, the support performance of the detection table 1 is improved.

[0041] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0042] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any appropriate manner without conflict. To avoid unnecessary repetition, the present invention will not separately describe various possible combination methods.

[0043] In addition, any combination can be made between various different embodiments of the present invention as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A display screen light leakage detection device, characterized in that It includes a detection table (1), on which a detection groove (26) is provided. A side hole (23) communicating with the detection groove (26) is provided on the side of the detection table (1). A carrier plate (11) is movably inserted into the side hole (23). A lower gasket (12) is provided on the carrier plate (11). A sealing end plate (7) is fixedly connected to the outer end of the carrier plate (11). A light beam groove (16) penetrating through the sealing end plate (7) is provided at the outer end of the carrier plate (11). A light source (10) is installed at the outer end of the light beam groove (16). A light beam outlet (30) penetrating upward through the lower gasket (12) is provided at the inner end of the light beam groove (16). A reflecting mirror (17) is provided at the turning position of the light beam outlet (30) and the light beam groove (16). The reflecting mirror (17) is configured to reflect the light beam emitted by the light source (10) to vertically upward emit from the light beam outlet (30). A cover plate (3) for closing the detection groove (26) is provided on the detection table (1). A first cylinder (5) is installed on the cover plate (3). The cylinder shaft of the first cylinder (5) penetrates downward through the cover plate (3) and then is connected to a pressing plate (18). An upper gasket (19) is provided at the bottom of the pressing plate (18). A photosensitive sensor (20) is provided on the side of the detection groove (26).

2. The display leakage detection device according to claim 1, characterized in that, On the detection table (1), a guiding hole (29) is provided on each of the left and right sides of the side hole (23). A light rod (6) is slidably arranged in the guiding hole (29); One end of the light rod (6) is fixedly connected to the sealing end plate (7), and the other end is connected through a linkage plate (15). A second cylinder (13) is provided at the bottom side of the detection table (1). The shaft body (14) of the second cylinder (13) is fixedly connected to the linkage plate (15).

3. The display leakage detection device according to claim 2, wherein, A positioning groove (28) for installing the second cylinder (13) is provided at the bottom of the detection table (1).

4. The display leakage detection device according to claim 1, characterized in that, A dovetail groove (27) extending to the bottom surface of the detection groove (26) is provided at the bottom side of the side hole (23). A dovetail guide rail (31) slidably matched with the dovetail groove (27) is provided at the bottom side of the carrier plate (11).

5. The display leakage detection device according to claim 1, wherein A limiting groove (24) capable of fitting and accommodating the end of the carrier plate (11) is provided on the side of the detection groove (26) at the end facing away from the carrier plate (11).

6. The display leakage detection device according to claim 1, wherein, The cover plate (3) is installed on the detection table (1) through a plurality of first bolts (4). A screw hole (25) matched with the first bolt (4) is provided on the detection table (1). A first annular gasket (21) surrounding the detection groove (26) is provided on the bottom surface of the cover plate (3).

7. The display light leakage detection device according to claim 1, wherein A second annular gasket (22) surrounding the side hole (23) is provided on the inner side of the sealing end plate (7).

8. The display light leakage detection device according to claim 1, characterized in that A plurality of limiting right-angle blocks (8) surrounding the light beam outlet (30) are provided on the carrier plate (11). The limiting right-angle blocks (8) are glass blocks and are hermetically penetrated through the lower gasket (12).

9. The display leakage detection device according to claim 1, characterized in that The outer end of the light source (10) is mounted on the sealing end plate (7) through a plurality of second bolts (9).

10. The display light leakage detection device according to claim 1, characterized in that A plurality of support columns (2) are provided at the bottom of the detection table (1).

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