Automatic shading device

Abstract

The present invention relates to the technical field of optical detection device structure, and specifically refers to an automatic shading device. It includes a square base and a light-emitting light box fixed on the base to provide a light source; the base is provided with a crimping module connected to the screen to be tested, and also includes an X-direction shading device and a Y-direction shading device provided on the base; the X-direction shading device includes an X-direction shading baffle provided on the first side of the base and movable to the top of the light box along the X direction; the Y-direction shading device includes a Y-direction shading baffle provided on the second side of the base and movable to the top of the light box along the Y direction; the X-direction shading baffle and the Y-direction shading baffle are arranged alternately along the Z direction; the X-direction, Y-direction and Z-direction are perpendicular to each other; the first side is perpendicular to the second side. The shading device of the present invention has a simple structure and is easy to operate. It can adapt to screens of various sizes, effectively shields the interfering light emitted by the light source of the light box, improves the accuracy of detection, and has great promotion value.

Description

Technical Field

[0001] The invention relates to the technical field of optical detection device structures, and in particular to an automatic shading device. Background Art

[0002] The screens of existing display devices need to be optically inspected before being put into use to detect whether there are any display problems on the screen. For display panels without backlight modules, the inspection is generally carried out by introducing an external backlight box to illuminate the screen, and manually or using optical instruments to observe the illuminated screen to check the display status of the screen. The inspection work of existing screens usually pays attention to the interference of ambient light on the inspection work. Therefore, some people propose to use a cover body to cover the outside of the screen to isolate the ambient light and avoid the interference of ambient light on the screen. However, this structure can only isolate the ambient light, but not the light of the backlight box itself. In fact, the backlight box of the inspection device generally needs to be applied to planes of various sizes, and the screens have various specifications. When a large-sized backlight box is applied to a small screen, the light source located around the small screen will emit interfering light, affecting the entire inspection effect. Therefore, it is necessary to develop a detection device that can isolate the excess light of the backlight box. Summary of the invention

[0003] The purpose of the present invention is to solve the problem mentioned in the background art that the prior art optical detection device cannot completely isolate the light interference of the light source itself, and to provide an automatic shading device.

[0004] The technical solution of the present invention is: an automatic shading device, comprising a square base and a light-emitting light box fixed on the base to provide a light source; the base is provided with a crimping module connected to the screen to be tested, characterized in that: it also includes an X-direction shading device and a Y-direction shading device arranged on the base; the X-direction shading device includes an X-direction shading baffle arranged on the first side of the base and movable along the X direction to above the light box; the Y-direction shading device includes a Y-direction shading baffle arranged on the second side of the base and movable along the Y direction to above the light box; the X-direction shading baffle and the Y-direction shading baffle are alternately arranged along the Z direction; the X direction, the Y direction and the Z direction are perpendicular to each other; the first side is perpendicular to the second side.

[0005] Further, the X-direction shading device comprises two sets of X-direction shading baffles respectively arranged on two mutually parallel first side portions of the base, and the two sets of X-direction shading baffles are arranged relatively and spaced apart.

[0006] Furthermore, the two parallel second side portions of the base are respectively provided with first slide grooves arranged along the X direction, and the first slider is correspondingly slidably connected in the first slide groove; the X-direction light-shielding baffle includes a first active plate, and the two ends of the first active plate extending along the Y direction are respectively provided with first sliders, and the first active plate is driven by the first motor on the base to move along the first slide groove driven by the first slider.

[0007] Furthermore, the X-direction light shielding baffle also includes a first fixing plate; the first fixing plate is fixed on the base and arranged above the first active plate.

[0008] Furthermore, the X-direction shading baffle also includes a first driven plate; the first fixed plate, the first driven plate and the first active plate are arranged in layers and staggered from top to bottom; the two ends of the first driven plate extending along the Y direction are respectively provided with rollers, and the two sides of the first driven plate extending along the X direction are provided with downwardly protruding blocks; the two parallel second side portions of the base are respectively provided with second slide grooves arranged along the X direction, and the rollers are slidably connected in the second slide grooves; the side of the first active plate extending along the Y direction and away from the middle of the light box is provided with an upwardly protruding baffle corresponding to the baffle; the baffle is hooked on the baffle when the first active plate and the first driven plate have the maximum relative displacement.

[0009] The Y-direction shading device further comprises a Y-direction shading baffle plate arranged on the first Y-direction side of the base, and the Y-direction shading baffle plate is located between the two sets of X-direction shading baffle plates.

[0010] Further, the Y-direction shading baffle includes a second active plate; the two ends of the second active plate extending along the X-direction are fixed on a conveyor belt arranged along the first side of the base, and the second active plate moves horizontally along the Y-direction through the drive of the conveyor belt.

[0011] Furthermore, the Y-direction shading baffle also includes a second fixed plate suspended above the second active plate; the second fixed plate is fixed on the base; and the second active plate can be slidably connected to the second fixed plate along the Y direction.

[0012] Furthermore, the Y-direction shading baffle also includes a second driven plate; the second fixed plate, the second driven plate and the second active plate are arranged in layers and staggered from top to bottom; the upper and lower ends of the second driven plate can be slidably connected to the second fixed plate and the second active plate along the Y direction, and are driven to move along the Y direction by the second active plate.

[0013] Furthermore, the two side edges of the second driven plate extending along the Y direction are provided with downwardly protruding bosses, and the second driven plate is provided with a third slide groove extending along the Y direction; the upper end surface of the second active plate is provided with an I-shaped slide rail protruding upward and extending along the Y direction; the boss is provided with an I-shaped through hole for the slide rail to pass through, the slide rail passes through the through hole and is slidably connected to the boss, and a vertical plate with a cross-section larger than that of the through hole is provided at one end of the slide rail away from the middle of the light box; the lower end surface of the second fixed plate is provided with a second sliding block protruding downward and extending into the third slide groove.

[0014] The advantages of the present invention are as follows: 1. By arranging movable shading baffle structures around the light box, the exposed area of ​​the light box can be changed by moving the shading baffles, so that the entire device can adapt to screen detection of various sizes and has a wide range of applications;

[0015] 2. By setting the shading baffle as a three-layer stacked structure, the area occupied by the baffle is effectively reduced, the layout space of the entire shading baffle is reduced, the size of the entire device is reduced, and the entire device is more portable;

[0016] 3. By setting a Y-direction shading device on one side of the base, in cooperation with the X-direction shading devices on both sides, the purpose of shielding the interfering light emitted by the light boxes around the screen to be tested can be well achieved. The operation is simple and convenient, and the space occupied is small;

[0017] 4. By using a three-layer stacking and single-layer driving structure, the difficulty of baffle movement is greatly reduced and the efficiency of baffle movement shading is improved.

[0018] The shading device of the present invention has a simple structure and is easy to operate. It can adapt to screens of various sizes, effectively blocks the interfering light emitted by the light source of the light box, improves the accuracy of detection, and has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : A schematic structural diagram of the present invention;

[0020] Figure 2 : A schematic structural diagram of the X-axis shading device of the present invention;

[0021] Figure 3 : Schematic diagram of the arrangement structure of the first active plate and the first driven plate of the present invention;

[0022] Figure 4 : A schematic structural diagram of the Y-direction shading device of the present invention;

[0023] Figure 5 : A schematic diagram of the connection structure between the first active plate and the first driven plate of the present invention;

[0024] Figure 6: A schematic diagram of the connection structure between the second active plate and the second driven plate of the present invention;

[0025] Figure 7 : A schematic diagram of the structure of the second driven plate of the present invention;

[0026] Figure 8 : A schematic diagram of the structure of the second active board of the present invention;

[0027] Among them: 1—base; 2—light box; 3—first active plate; 4—first driven plate; 5—first fixed plate; 6—second active plate; 7—second driven plate; 8—second fixed plate; 9—first slider; 10—first slide groove; 11—first motor; 12—roller; 13—second slide groove; 14—block; 15—baffle; 16—conveyor belt; 17—boss; 18—slide rail; 19—vertical plate; 20—second slider; 21—third slide groove. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 8 As shown, an automatic shading device includes a square base 1, which is a bearing structure. A light box 2 for providing a light source is arranged on the upper end surface of the base 1. The screen to be inspected is placed on the light box 2, and the light emitted by the light box 2 provides a backlight source for the screen. In order to facilitate electrical connection with the screen to be inspected, a crimping module is arranged on the base 1 in this embodiment. Figure 1 As shown, the light box 2 of this embodiment is arranged on the base 1, and the crimping module is located on one of the two second side portions of the base 1 extending along the Y direction. Such an arrangement makes it easier to connect the screen to be tested during testing.

[0030] In this embodiment, a set of X-direction light shielding baffles are respectively arranged on two mutually parallel first side portions extending along the X direction of the base 1, and a set of Y-direction light shielding baffles are arranged on the other of the two second side portions extending along the Y direction of the base 1. The X-direction light shielding baffles and the Y-direction light shielding baffles are alternately arranged along the Z direction, and the Z direction in this embodiment refers to the direction perpendicular to the base 1.

[0031] like Figure 2 , 3As shown in Figures 5 and 6, the X-direction shading device includes two sets of X-direction shading baffles respectively arranged on two mutually parallel first side portions of the base 1, and the two sets of X-direction shading baffles are arranged at intervals. The two parallel second side portions of the base 1 are respectively provided with first slide grooves 10 arranged along the X direction, and the X-direction shading baffle includes a first active plate 3, and the two ends of the first active plate 3 extending along the Y direction are respectively provided with first sliders 9, and the first sliders 9 are correspondingly slidably connected in the first slide grooves 10, and the first active plate 3 is driven by the first motor 11 on the base 1 to move along the first slide groove 10 driven by the first sliders 9.

[0032] The X-direction shading baffle further includes a first fixed plate 5 , which is a horizontal light-proof flat plate arranged along the Y direction, and whose two ends along the Y direction are fixed on the base 1 , and the first active plate 3 is located below the first fixed plate 5 .

[0033] The X-direction shading baffle also includes a first driven plate 4, a first fixed plate 5, a first driven plate 4 and a first active plate 3 which are arranged in layers and staggered from top to bottom, rollers 12 are respectively provided at the two ends of the first driven plate 4 extending along the Y direction, downwardly protruding blocks 14 are provided at the two sides of the first driven plate 4 extending along the X direction, second slide grooves 13 arranged along the X direction are respectively provided on the two parallel second side portions of the base 1, the rollers 12 are slidably connected in the second slide grooves 13, and an upwardly protruding baffle 15 corresponding to the block 14 is provided on the side of the first active plate 3 extending along the Y direction and away from the middle of the light box 2, and the baffle 15 is hooked on the block 14 when the first active plate 3 and the first driven plate 4 have the maximum relative displacement.

[0034] The X-direction light shielding baffle is a combination of three layers of baffles stacked together. The first motor 11 drives the first active plate 3 to move in the X-direction. After the first active plate 3 moves to the baffle 15 and hooks the stopper 14, it pushes the first driven plate 4 to move in the X-direction. The maximum relative displacement of this embodiment refers to the relative displacement when the vertical overlap area between the first active plate 3 and the first driven plate 4 is the smallest. In fact, the edge positions of the first fixed plate 5 and the first driven plate 4 are also provided with a baffle and a stopper structure. When the first driven plate 4 moves away from the side of the light box 2 to the bottom of the side of the first fixed plate 5 close to the light box 2, it hooks the first driven plate 4 to limit the first driven plate 4 from continuing to move in the X-direction. At this time, the first fixed plate 5 and the first driven plate 4 have the maximum relative displacement.

[0035] like Figure 4 and 6As shown in Figures 1 to 8, the Y-direction shading device includes a Y-direction shading baffle plate disposed on the second side of the base 1, and the Y-direction shading baffle plate is located between the two sets of X-direction shading baffle plates. The Y-direction shading baffle plate includes a second active plate 6, and the two ends of the second active plate 6 extending along the X direction are fixed on a conveyor belt 16 arranged along the first side of the base 1, and the second active plate 6 is driven by the conveyor belt 16 to move horizontally along the Y direction.

[0036] The Y-direction shading baffle also includes a second fixed plate 8 suspended above the second active plate 6. The second fixed plate 8 is a horizontal opaque flat plate arranged along the X-direction, and its two ends along the X-direction are fixed on the base 1. The second active plate 6 can be slidably connected to the second fixed plate 8 along the Y-direction.

[0037] The Y-direction shading baffle also includes a second driven plate 7 located between the second active plate 6 and the second fixed plate 8. The second driven plate 7 is an opaque flat plate arranged along the X-direction and slidable along the Y-direction. The lower ends of both sides of the second driven plate 7 along the Y-direction are provided with downwardly protruding bosses 17. The second driven plate 7 is provided with a third slide groove 21 extending along the Y-direction. The upper end surface of the second active plate 6 is provided with an upwardly protruding I-shaped slide rail 18 extending along the Y-direction. The boss 17 is provided with an I-shaped through hole for the slide rail 18 to pass through. The slide rail 18 passes through the through hole and is slidably connected to the boss 17. The end of the slide rail 18 away from the light box 2 is provided with a vertical plate 19 with a cross-section larger than the cross-section of the through hole. The lower end surface of the second fixed plate 8 is provided with a second slider 20 protruding downward and extending into the third slide groove 21.

[0038] Similarly, the Y-direction shading baffle of the present embodiment is also a three-layer stacked structure, and the second active plate 6 is driven to move along the Y-direction by the transmission belt 16. When the second active plate 6 and the second driven plate 7 have a maximum displacement, that is, when the second active plate 6 moves from the side away from the light box 2 to the bottom of the side of the second driven plate 7 close to the light box 2, the vertical plate 19 hooks the boss 17, thereby driving the second driven plate 7 to move along the Y-direction. When the second driven plate 7 and the second fixed plate 8 have a maximum displacement, that is, when the second slider 20 moves to the end of the third slide groove 21 away from the light box 2, the two have a maximum displacement.

[0039] When in use, the screen to be tested is placed on the light box 2, the crimping module is connected to the screen to be tested, the light box 2 emits light, the driving motor 11 and the transmission belt 16, the first active board 3 and the second active board 6 move along the X direction and the Y direction respectively until they move to the edge of one side close to the light box and touch the edge of the screen to be tested or overlap in the Z direction, which can completely block the light emitted by the light box outside the screen and isolate the screen from the infection of excess light, test the screen, and record the test results.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An automatic shading device, comprising a square base (1) and a light box (2) fixed on the base (1) to provide a light source; the base (1) is provided with a crimping module connected to a screen to be tested, characterized in that: It also includes an X-direction shading device and a Y-direction shading device arranged on the base (1); the X-direction shading device includes an X-direction shading baffle plate arranged on the first side of the base (1) and movable along the X direction to above the light box (2); the Y-direction shading device includes a Y-direction shading baffle plate arranged on the second side of the base (1) and movable along the Y direction to above the light box (2); the X-direction shading baffle plate and the Y-direction shading baffle plate are arranged alternately along the Z direction; the X direction, the Y direction and the Z direction are perpendicular to each other; the first side portion is perpendicular to the second side portion; The X-direction light shielding device comprises two sets of X-direction light shielding baffles respectively arranged on two mutually parallel first side portions of the base (1), and the two sets of X-direction light shielding baffles are arranged relatively and spaced apart; The two parallel second side portions of the base (1) are respectively provided with first slide grooves (10) arranged along the X direction; the X-direction light shielding baffle comprises a first active plate (3); the two ends of the first active plate (3) extending along the Y direction are respectively provided with first sliders (9); the first sliders (9) are correspondingly slidably connected in the first slide grooves (10); and the first active plate (3) is driven by a first motor (11) on the base (1) to move along the first slide groove (10) driven by the first sliders (9); The X-direction light shielding baffle further comprises a first fixing plate (5); the first fixing plate (5) is fixed on the base (1) and is arranged above the first active plate (3); The X-axis shading baffle further comprises a first driven plate (4); the first fixed plate (5), the first driven plate (4) and the first active plate (3) are arranged in layers and staggered from top to bottom; the two ends of the first driven plate (4) extending in the Y direction are respectively provided with rollers (12), and the two sides of the first driven plate (4) extending in the X direction are provided with downwardly protruding blocks (14); the two parallel second side portions of the base (1) are respectively provided with second slide grooves (13) arranged in the X direction, and the rollers (12) are slidably connected in the second slide grooves (13); the side edge of the first active plate (3) extending in the Y direction and away from the middle of the light box (2) is provided with an upwardly protruding baffle (15) corresponding to the baffle (14); the baffle (15) is hooked on the baffle (14) when the first active plate (3) and the first driven plate (4) generate the maximum relative displacement.

2. An automatic shading device according to claim 1, characterized in that: The Y-direction shading device comprises a Y-direction shading baffle plate arranged on a first Y-direction side of the base (1), and the Y-direction shading baffle plate is located between two sets of X-direction shading baffle plates.

3. An automatic shading device as claimed in claim 2, characterized in that: The Y-direction shading baffle comprises a second active plate (6); the two ends of the second active plate (6) extending along the X-direction are fixed on a conveyor belt (16) arranged along the first side of the base (1), and the second active plate (6) is driven by the conveyor belt (16) to move horizontally along the Y-direction.

4. An automatic shading device as claimed in claim 3, characterized in that: The Y-direction shading baffle further comprises a second fixed plate (8) suspended above the second active plate (6); the second fixed plate (8) is fixed on the base (1); and the second active plate (6) can be slidably connected to the second fixed plate (8) along the Y direction.

5. An automatic shading device as claimed in claim 4, characterized in that: The Y-direction shading baffle further comprises a second driven plate (7); the second fixed plate (8), the second driven plate (7) and the second active plate (6) are arranged in layers and staggered from top to bottom; the upper and lower ends of the second driven plate (7) are respectively slidably connected to the second fixed plate (8) and the second active plate (6) along the Y direction, and are driven to move along the Y direction by the second active plate (6).

6. An automatic shading device as claimed in claim 5, characterized in that: The second driven plate (7) is provided with downwardly protruding bosses (17) on two side edges extending along the Y direction, and the second driven plate (7) is provided with a third slide groove (21) extending along the Y direction; the upper end surface of the second active plate (6) is provided with an I-shaped slide rail (18) protruding upward and extending along the Y direction; the boss (17) is provided with an I-shaped through hole for the slide rail (18) to pass through, the slide rail (18) passes through the through hole and is slidably connected to the boss (17), and a vertical plate (19) with a cross-section larger than that of the through hole is provided at one end of the slide rail (18) away from the middle of the light box (2); the lower end surface of the second fixed plate (8) is provided with a second sliding block (20) protruding downward and extending into the third slide groove (21).

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