Darkroom for display detection

Abstract

The utility model belongs to the field of display testing, and particularly relates to a darkroom for display detection. Comprising a tray arranged in a darkroom, a to-be-detected display fixed on the tray, a simulation light source obliquely irradiating the display, a sampling camera used for collecting images of the display, a key testing device used for key testing of the display, a tray moving mechanism, a door plate and a mechanism for driving the door plate to be opened and closed. The test darkroom shields the influence of external ambient light on the test result, fixes the angle, orientation and distance between the multifunctional display and the industrial camera, does not need the camera to have an automatic focusing function, and improves the efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to display test field, concretely relates to a darkroom for display detection. BACKGROUND

[0002] The display screen and various functions of the multifunctional display are detected, which is a necessary link before the product is shipped, and the traditional test method is that the test equipment is connected with the multifunctional display, the test equipment sends a starting signal to the multifunctional display, the display screen displays the picture, the newly produced or repaired display needs to be powered on for a long time to verify, and an engineer needs to be arranged to observe beside the test equipment for a long time.

[0003] For the detection of display products, the change of ambient light and test background causes the change of product picture brightness, and the display product is judged as a display picture bright and dark fault, and in addition, the change of the position and angle of the test camera relative to the display also affects the judgment of the machine vision test result. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a darkroom for display detection.

[0005] The technical solution for realizing the utility model purpose is as follows: a darkroom for display detection, which comprises a tray arranged in the darkroom, a display to be detected fixed on the tray, a simulated light source obliquely arranged on the display, a sampling camera for collecting the image of the display, a key test device for testing the keys of the display, a tray moving mechanism, a door plate and a driving door plate opening and closing mechanism.

[0006] Further, the key test device comprises a rotating clamp jaw for key operation, the rotating clamp jaw is arranged on an XYZ three-axis motion platform, the rotating clamp jaw is moved to the top of the display key by controlling the positions of the X and Y axes, and the clicking of the key is realized by the movement of the Z axis position.

[0007] Further, the tray moving mechanism comprises a tray guide rail, a guide rail support, a lead screw, a lead screw nut, a lead screw support and a motor speed reducer assembly II.

[0008] The output shaft of the motor speed reducer assembly II is connected with the lead screw, the lead screw nut is arranged on the lead screw in a matched mode, the lead screw nut is arranged on the lead screw support, the lead screw support is connected with the tray guide rail, and the tray is arranged on the other end of the tray guide rail; the guide rail support is arranged on the bottom plate, the lead screw and the tray guide rail pass through the guide rail support and can move relative to the guide rail support;

[0009] The motor speed reducer assembly II drives the rotation of the lead screw, the lead screw drives the movement of the lead screw nut and the tray guide rail along the guide rail support, and the tray is fixed on the tray guide rail and moves together with the tray guide rail.

[0010] Further, the tray is provided with a stand column for limiting and fixing the display.

[0011] Further, the driving door plate opening and closing mechanism comprises a motor speed reducer assembly I arranged on the top plate, a driving sprocket, a driven sprocket, a chain, a transmission slider, a connecting rod, a crank, a rotating shaft, rotating limit blocks, a rotating shaft support, a door rotating guide rail and a door sliding guide rail.

[0012] The output shaft of the motor speed reducer assembly I is connected with the driving sprocket, the transmission slider is fixed on the chain and movably arranged on the door sliding guide rail, the rotating shaft is fixedly connected with the rotating limit blocks at both ends and movably arranged on the rotating shaft support, the door plate is connected with the rotating shaft through the L-shaped connecting piece, and the rotating shaft support is movably arranged on the door rotating guide rail.

[0013] The motor speed reducer assembly I drives the driving sprocket to rotate, drives the chain to move, drives the transmission slider to move through the chain, drives the rotating shaft to rotate and move along the connecting rod through the crank connecting rod, and drives the door plate to rotate and then horizontally move due to the limiting effect of the rotating limit blocks and the door rotating guide rail.

[0014] Compared with the prior art, the utility model has the remarkable advantages that:

[0015] The utility model discloses a test darkroom is designed to solve the influence of ambient light on the display, and the inside darkroom is integrated with the key detection device and the simulation light source of simulated sunlight, realizes the automatic opening of the hatch of the darkroom with the stepper motor, provides the condition for realizing the automatic test of the multifunctional display, reduces the display maintenance labor cost, improves the display maintenance efficiency, and the effect is remarkable. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the inside structure three-dimensional schematic view of the darkroom of the utility model.

[0017] Figure 2 It is the door plate full closing state schematic view.

[0018] Figure 3 It is the door plate half opening state schematic view.

[0019] Figure 4 It is the door plate rotation to horizontal state.

[0020] Figure 5 It is the door plate complete opening angle I view.

[0021] Figure 6 It is the door plate complete opening angle II view.

[0022] Figure 7 It is the door plate complete opening angle III view.

[0023] Figure 8 The figure shows the state of the door completely open and the tray completely pushed out.

[0024] Reference signs:

[0025] 1-chain, 2-motor reducer assembly I, 3-door sliding guide rail, 4-door rotating guide rail, 5-display, 6-motor reducer assembly II, 7-sampling camera, 8-key test device, 9-analog light source, 10-driving sprocket, 11-transmission slider, 12-connecting rod, 13-crank, 14-rotating shaft, 15-door panel, 16-rotating limiting block, 17-rotating shaft support, 18-guide rail support, 19-tray, 20-tray guide rail, 21-screw rod, 22-screw rod nut, 23-screw rod support. DETAILED DESCRIPTION

[0026] The utility model makes further detailed description in combination with the drawings.

[0027] The utility model discloses a set of darkroom for multifunctional display, and the multifunctional display is placed in the darkroom, the cabin door is controlled to be closed, after the test function starts, the industrial camera distinguishes the good and bad of display picture, and the multifunctional display display brightness can be tested, data is sent to multifunctional display test equipment, and there is a set of key detection device in the darkroom simultaneously, which replaces manual test to the key and rotary encoder on the light guide plate of multifunctional display, after ending test, click " open cabin " button, and take out multifunctional display.

[0028] As Figures 1-8 The utility model discloses a darkroom for display detection, including the tray 19 of setting in the darkroom, the display of being detected is fixed on the tray 19, the analog light source 9 of oblique illumination on the display, the sampling camera 7 for gathering the display image, the key test device 8 for display key test, tray moving mechanism, door panel 5 and drive door panel opening and closing mechanism.

[0029] The sampling camera 7: the position for placing the display in the darkroom is fixed, on the middle bottom plane in the darkroom, the front of the sampling camera 7, and the angle and distance of the sampling camera 7 are fixed, the position is formed by four fixed right angles, can place the display to it, and the position of the display is fixed. The sampling camera 7 is used to collect the display picture, and the image is transmitted to the embedded host computer.

[0030] The key test device 8 includes a rotating clamp for key operation, which is arranged on an XYZ three-axis motion platform. By controlling the positions of the X and Y axes, the rotating clamp is moved above the display keys. By moving the Z-axis position, the keys are clicked.

[0031] The tray moving mechanism comprises a tray guide rail 20, a guide rail support 18, a screw rod 21, a screw rod nut 22, a screw rod support 23 and a motor reducer assembly II 6;

[0032] The output shaft of the motor reducer assembly II 6 is connected with the screw rod 21, the screw rod nut 22 is arranged on the screw rod 21 in a matched mode, the screw rod nut 22 is arranged on the screw rod support 23, the screw rod support 23 is connected with the tray guide rail 20, and the tray 19 is arranged on the other end of the tray guide rail 20; the guide rail support 18 is arranged on the bottom plate, the screw rod 21 and the tray guide rail 20 pass through the guide rail support 18 and can move relative to the guide rail support 18;

[0033] The motor reducer assembly II 6 drives the screw rod 21 to rotate, the screw rod 21 drives the screw rod nut 22 and the tray guide rail 20 to move along the guide rail support 18, and the tray 19 is fixed on the guide rail and moves together with the tray guide rail 20.

[0034] The tray 19 is provided with a stand column for limiting and fixing the display.

[0035] The driving door plate opening and closing mechanism comprises a motor reducer assembly I 2 arranged on the top plate, a driving sprocket 10, a driven sprocket, a chain 1, a transmission sliding block 11, a connecting rod 12, a crank 13, a rotating shaft 14, a rotating limiting block 16, a rotating shaft support 17, a door rotating guide rail 4 and a door sliding guide rail 3.

[0036] The output shaft of the motor reducer assembly I 2 is connected with the driving sprocket 10, the transmission sliding block 11 is fixed on the chain 1 and movably arranged on the door sliding guide rail 3, the rotating shaft 14 is fixedly connected with the rotating limiting block 16 at both ends, the rotating shaft 14 is rotatably arranged on the rotating shaft support 17, the door plate 5 is connected with the rotating shaft 14 through an L-shaped connecting piece, and the rotating shaft support 17 is movably arranged on the door rotating guide rail 4.

[0037] The motor reducer assembly I 2 drives the driving sprocket 10 to rotate, drives the chain 1 to move, drives the transmission sliding block 11 to move, drives the rotating shaft 14 to rotate and move along the connecting rod axis through the crank connecting rod, and the door plate first rotates and then moves horizontally due to the limiting action of the rotating limiting block 16 and the door rotating guide rail 4.

[0038] The test darkroom shields the influence of external environmental light on the test result, reduces the workload of image processing in the later stage, fixes the angle, position and distance of the multifunctional display and the industrial camera, does not need the camera to have an automatic focusing function, and reduces the cost of purchasing the camera.

Claims

1. A darkroom for testing a display, characterized in that, It includes a tray (19) set in a dark room, a display to be tested fixed on the tray (19), an analog light source (9) shining obliquely on the display, a sampling camera (7) for acquiring images of the display, a button testing device (8) for testing the display buttons, a tray moving mechanism, a door panel (5) and a door panel opening and closing mechanism.

2. The darkroom according to claim 1, characterized in that, The button testing device (8) includes a rotating gripper for button operation. The rotating gripper is set on an XYZ three-axis motion platform. By controlling the positions of the X and Y axes, the rotating gripper is moved to the top of the display button. The button is clicked by moving the Z axis position.

3. The darkroom according to claim 1, characterized in that, The pallet moving mechanism includes a pallet guide rail (20), a guide rail support (18), a lead screw (21), a lead screw nut (22), a lead screw support (23), and a motor reducer assembly II (6); The output shaft of the motor reducer assembly II (6) is connected to the lead screw (21). A lead screw nut (22) is fitted on the lead screw (21). The lead screw nut (22) is set on the lead screw support (23). The lead screw support (23) is connected to the tray guide rail (20). A tray (19) is provided on the other end of the tray guide rail (20). The guide rail support (18) is set on the base plate. The lead screw (21) and the tray guide rail (20) pass through the guide rail support (18) and can move relative to the guide rail support (18). The motor reducer assembly II (6) drives the lead screw (21) to rotate. The lead screw (21) drives the lead screw nut (22) and the tray guide rail (20) to move along the guide rail support (18). The tray (19) is fixed on the guide rail and moves together with the tray guide rail (20).

4. The darkroom according to claim 3, characterized in that, The tray (19) is provided with a column for limiting and fixing the display.

5. The darkroom according to claim 1, characterized in that, The door opening and closing mechanism includes a motor reducer assembly I (2) installed on the top plate, a drive sprocket (10), a driven sprocket, a chain (1), a transmission slider (11), a connecting rod (12), a crank (13), a rotating shaft (14), a rotation limit block (16), a rotating shaft support (17), a door rotating guide rail (4), and a door sliding guide rail (3); The output shaft of the motor reducer assembly I (2) is connected to the drive sprocket (10). The transmission slider (11) is fixed on the chain (1) and the transmission slider (11) is movably set on the door sliding guide rail (3). Rotation limit blocks (16) are fixedly connected to both ends of the rotating shaft (14). The rotating shaft (14) is rotatably set on the rotating shaft support (17). The door panel (5) is connected to the rotating shaft (14) through an L-shaped connector. The rotating shaft support (17) is movably set on the door rotating guide rail (4). The motor reducer assembly I (2) drives the drive sprocket (10) to rotate, which in turn drives the chain (1) to move. The chain (1) drives the transmission slider (11) to move, which in turn drives the rotating shaft (14) to rotate and move along the connecting rod axis through the crank connecting rod. Due to the limiting effect of the rotation limit block (16) and the door rotation guide rail (4), the door panel rotates first and then moves horizontally.

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