Display screen image quality inspection device and quality inspection method thereof

Abstract

The invention discloses a display screen picture quality inspection device and a quality inspection method thereof, which relate to the field of display screen quality inspection, and comprise a base, a platform at one end of the base, a supporting device at the top of the base, a detecting device at one side of the base, and a central control device at the top of the platform. The supporting device comprises two first damping turntables at two end positions of the top of the base, a telescopic clamping component at the top of the first damping turntable, the detecting device comprises a light curtain component at one side of the supporting device, a measuring point adjustment component at one side of the base, a high-frequency photosensor at the top of the measuring point adjustment component, the central control device comprises a parameter adjuster at the top of the platform, and a universal adapter plate at one end of the parameter adjuster. The invention discloses a picture quality inspection device and a quality inspection method thereof that can be compatible with different display screens.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of display screen quality inspection, and specifically to a display screen image quality inspection device and a quality inspection method thereof. Background Art

[0002] Display screen quality inspection refers to the quality inspection and testing of the display screen to evaluate its display effect and quality. Display screen quality inspection is of great significance, such as protecting consumer rights: through quality inspection, it can ensure that the products purchased by consumers are of good quality, avoid unnecessary losses and troubles, and improve product quality: display screen quality inspection can promptly discover and correct defects and problems in products to avoid their adverse effects on the market. Enhance brand image and reduce production costs: If a display screen has serious quality problems, it may lead to additional production costs and maintenance costs. Due to the high technicality of display screen quality inspection, many display screen manufacturers now still need technical personnel to intervene, the quality inspection speed is slow, and the quality inspection cost is high. Therefore, a display screen quality inspection device and quality inspection method that can perform efficient and fast quality inspection are needed.

[0003] According to a quality inspection device for an electronic watch display screen provided in the patent document with application number CN201711379039.9, a sorting mechanism, a feeding component, a discharging component and a recycling component are set up. The feeding component transfers the display screen to be inspected to the sorting mechanism, the sorting mechanism inspects the display screen and removes the waste display screen and stores it in the recycling component, and the discharging component discharges the qualified display screen, so as to quickly sort the electronic watch display screen and improve the production efficiency of the electronic screen.

[0004] The method in the above patent can realize the automated quality inspection process of a certain model of display screen, but has the disadvantages of poor device compatibility and can only perform quality inspection on a single model of display screen. Summary of the invention

[0005] The present invention mainly provides a display screen image quality inspection device and a quality inspection method thereof, so as to solve the technical problems raised in the above-mentioned background technology.

[0006] The technical solution adopted by the present invention to solve the above technical problems is:

[0007] A display screen image quality inspection device comprises a base, a platform arranged at one end of the base, a supporting device arranged at the top of the base, a detection device arranged at one side of the base, and a central control device arranged at the top of the platform;

[0008] The supporting device comprises two first damping turntables arranged at two ends of the top of the base, and a telescopic clamping component arranged on the top of the first damping turntable;

[0009] The detection device includes a light curtain component arranged on one side of the support device, a measuring point adjustment component arranged on one side of the base, and a high-frequency light sensor arranged on the top of the measuring point adjustment component;

[0010] The central control device comprises a parameter adjustment instrument arranged on the top of the platform and a universal adapter plate arranged on one end of the parameter adjustment instrument.

[0011] Preferably, the telescopic clamping component includes a first J-shaped plate arranged on the top of the first damping turntable, two telescopic rods arranged inside the first J-shaped plate, a second J-shaped plate arranged at the execution end of the telescopic rod, and a sponge pad arranged inside the first J-shaped plate and the second J-shaped plate. In this preferred embodiment, display screens of different widths can be clamped by the telescopic clamping component, and a curved screen display can be clamped by adjusting the rotation angle of the telescopic clamping component by the first damping turntable.

[0012] Preferably, the light curtain component includes a fixing frame arranged on one side of the supporting device, and a light curtain screen arranged on the fixing frame. In this preferred embodiment, the light curtain screen can be used to simulate the display effect of the display screen under different lighting conditions, and the light curtain screen can also be used to assist in detecting the color gamut and color accuracy based on the principle of light reflection.

[0013] Preferably, the measuring point adjustment component includes a slide rail arranged on the base, a slider slidably arranged on the top of the slide rail, a second damping turntable arranged on the top of the slider, and an angle adjustment component arranged on the top of the second damping turntable. In this preferred embodiment, the detection distance is adjusted by the slider and the slide rail to ensure that the detection device can detect the entire screen.

[0014] Preferably, the angle adjustment component includes a hemispherical disk arranged on the top of the second damping turntable, and a rotating rod hinged inside the hemispherical disk. In this preferred embodiment, the angle adjustment component is used to make the high-frequency photosensor detection point located in the center of the display screen.

[0015] Preferably, the high-frequency photosensor is internally integrated with a brightness detection module, a color gamut detection module, a bad pixel detection module, a refresh rate detection module, and a data feedback module. In this preferred embodiment, the display screen image is comprehensively detected through the integrated detection modules.

[0016] Preferably, the high-frequency light sensor includes four laser light tubes on the side wall and several indicator lights on one side of the high-frequency light sensor. In this preferred embodiment, the laser light tubes are used to assist in adjusting the detection center point and the detection area, and the indicator lights are used to prompt the staff which step has been detected.

[0017] Preferably, according to the display screen image quality inspection device described in the claim, it is characterized in that the parameter adjuster internally integrates a parameter adjustment module, a signal sending module, and a signal recognition module. In this preferred embodiment, by inputting a detection scheme into the parameter adjuster in advance, the image quality inspection is automatically performed through the parameter adjuster.

[0018] Preferably, the universal adapter board is provided with mainstream display screen adapters such as HDMI, DP, VGA, and Type-C. In this preferred embodiment, the universal adapter board is adapted to display screens of different models to improve the compatibility of the device.

[0019] According to the above technical solution, a display screen image quality inspection method is also provided, comprising the following steps:

[0020] Step 1: Fix the display screen to be inspected. Fix the display screen to be inspected on the top of the base through a supporting device, with the display end facing the inspection device;

[0021] Step 2, detection angle adjustment, adjust the shooting angle of the high-frequency light sensor through the measuring point adjustment component, and use the laser line emitted by the laser tube to assist in observing the picture frame;

[0022] Step 3: Automatic picture quality inspection: connect the parameter adjuster through the universal adapter board, output the pre-set test picture through the parameter adjuster, start the light curtain component and high-frequency light sensor synchronously, and detect the brightness, chromaticity, bad pixels and refresh rate of the display screen.

[0023] Step 4: Feedback of quality inspection results. The high-frequency photosensor sends the detected data to the parameter adjuster. The staff can check the test results through the parameter adjuster to determine whether the display screen is qualified.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] In this embodiment, by adding a universal adapter plate and a component capable of adjusting the angle position, it is possible to adapt to display screens of various models and sizes, thereby greatly improving the compatibility of the quality inspection device.

[0026] Laser-assisted position adjustment and indicator light to prompt the progress can facilitate operators to master the device and reduce the difficulty of getting started.

[0027] By adding a light screen to assist quality inspection, the computing power required for the quality inspection device can be greatly saved, the speed of quality inspection can be improved, and the accuracy of quality inspection can be increased through physical principles.

[0028] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is an axonometric diagram of the overall device of the present invention;

[0030] Figure 2 It is an axonometric view of the telescopic clamping component of the present invention;

[0031] Figure 3 It is a partial structural axonometric diagram of the present invention;

[0032] Figure 4 is a cross-sectional view of the angle adjustment assembly of the present invention;

[0033] Figure 5 This is an internal module diagram of the high-frequency light sensor of the present invention;

[0034] Figure 6 It is the internal module diagram of the parameter adjustment instrument of the present invention;

[0035] Figure 7 It is the overall operation flow chart of the present invention.

[0036] Description of the drawings: 10, base; 11, platform; 20, support device; 30, detection device; 40, central control device; 21, first damping turntable; 22, telescopic clamping component; 31, light curtain component; 32, measuring point adjustment component; 33, high-frequency light sensor; 41, parameter adjustment instrument; 42, universal adapter plate; 221, first J-shaped plate; 222, telescopic rod; 223, second J-shaped plate; 224, sponge pad; 311, fixing frame; 312, light curtain screen; 3 21. Slide rail; 322. Slider; 323. Second damping turntable; 324. Angle adjustment assembly; 3241. Hemispherical disk; 3242. Rotating rod; 331. Brightness detection module; 332. Color gamut detection module; 333. Bad pixel detection module; 334. Refresh rate detection module; 335. Data feedback module; 336. Laser lamp tube; 337. Indicator light; 411. Parameter adjustment module; 412. Signal sending module; 413. Signal recognition module. DETAILED DESCRIPTION

[0037] In a preferred embodiment of the present invention, the technical solution adopted by the present invention to solve the above technical problem is:

[0038] Please refer to the attached Figure 1 , 2As shown, a display screen image quality inspection device includes a base 10, a platform 11 arranged at one end of the base 10, a supporting device 20 arranged at the top of the base 10, a detection device 30 arranged at one side of the base 10, and a central control device 40 arranged at the top of the platform 11. The supporting device 20 includes two first damping turntables 21 arranged at both ends of the top of the base 10, a telescopic clamping component 22 arranged at the top of the first damping turntable 21, and the telescopic clamping component 22 includes a first J-shaped plate 221 arranged at the top of the first damping turntable 21, two telescopic rods 222 arranged inside the first J-shaped plate 221, a second J-shaped plate 223 arranged at the execution end of the telescopic rod 222, and a sponge pad 224 arranged inside the first J-shaped plate 221 and the second J-shaped plate 223.

[0039] It should be noted that there are two groups of telescopic clamping parts 22, which are respectively located at the two ends of the top of the base 10. When the telescopic clamping parts 22 are used alone, the straight screen display can be supported. When the curved screen needs to be inspected, the first damping dial 21 can be used to adjust the angle of the telescopic clamping parts 22 to facilitate clamping the curved screen. The length of the short board surface of the first J-shaped plate 221 and the second J-shaped plate 223 cannot exceed the width of the outer frame of the display screen to prevent the screen from being blocked. The sponge pad 224 is relatively thick and can be inserted into the base of display screens of different thicknesses.

[0040] Further, the angle of the first damping turntable 21 and the length of the telescopic rod 222 are adjusted according to the specifications of the display screen;

[0041] Furthermore, the display screen is installed in the first J-shaped plate 221 and the second J-shaped plate 223 with the screen facing the detection device 30, ensuring that the sponge pad 224 is stuck on the display screen base.

[0042] Please refer to the attached Figure 1 , 3, 4, and 5, the detection device 30 includes a light curtain component 31 disposed on one side of the supporting device 20, a measuring point adjustment component 32 disposed on one side of the base 10, and a high-frequency light sensor 33 disposed on the top of the measuring point adjustment component 32. The light curtain component 31 includes a fixing frame 311 disposed on one side of the supporting device 20, a light curtain screen 312 disposed on the fixing frame 311, and the measuring point adjustment component 32 includes a slide rail 321 disposed on the base 10, a slider 322 slidingly disposed on the top of the slide rail 321, a second damping turntable 323 disposed on the top of the slider 322, and a second damping turntable 323 disposed on the second The angle adjustment component 324 on the top of the damping turntable 323 includes a hemispherical disk 3241 arranged on the top of the second damping turntable 323, and a rotating rod 3242 hinged inside the hemispherical disk 3241. The high-frequency light sensor 33 is integrated with a brightness detection module 331, a color gamut detection module 332, a bad pixel detection module 333, a refresh rate detection module 334, and a data feedback module 335. The high-frequency light sensor 33 includes four laser lamp tubes 336 on the side wall and several indicator lights 337 arranged on one side of the high-frequency light sensor 33.

[0043] It should be noted that the light curtain 312 is made of transparent material and displays a light source that has been adjusted to test the color accuracy. According to the light transmittance of the light source, the clarity of the display screen under different light conditions can be simulated. According to the principle of light reflection, when a color image passes through a light curtain of the same color, it will be covered. According to this principle, the color accuracy of the display screen image can be detected through the light curtain 312.

[0044] Furthermore, according to the size of the display screen, the slider 322 is slid to adjust the position on the slide rail 321. In this process, the laser emitted by the laser tube 336 assists in adjusting the position.

[0045] Further, the second damping turntable 323 and the rotating rod 3242 are rotated to adjust the shooting angle of the high-frequency light sensor 33 within the hemispherical disk 3241;

[0046] Furthermore, the fixing frame 311 and the high-frequency light sensor 33 are connected to the central control device 40 through a signal line, the detection program is started, and the light screen 312 and the high-frequency light sensor 33 work according to the program;

[0047] Further, the brightness detection module 331, the color gamut detection module 332, the bad pixel detection module 333, and the refresh rate detection module 334 respectively detect the brightness, color gamut, bad pixels, and refresh rate of the display screen, and during this process, the indicator light 337 indicates the detection progress by lighting up lights of different colors;

[0048] Furthermore, after the detection is completed, the data feedback module 335 sends the data to the central control device 40 .

[0049] Please refer to the attached Figure 1 ,6 As shown in , 7, the central control device 40 includes a parameter adjuster 41 arranged on the top of the platform 11, and a universal adapter board 42 arranged at one end of the parameter adjuster 41. The parameter adjuster 41 is internally integrated with a parameter adjustment module 411, a signal sending module 412, and a signal identification module 413. The universal adapter board 42 is provided with mainstream display screen adapters such as HDMI, DP, VGA, and Type-C.

[0050] It should be noted that the display screens on the market have different interface models according to different applications. Some display screens may support different models of interfaces at the same time. The parameters of the signals transmitted by different models of interfaces are also different. The interface also has a certain influence on the display screen. Therefore, the influence of different models of interfaces on the screen can be detected through the universal adapter board 42.

[0051] Further, select the universal adapter board 42 according to the interface model of the display screen to be inspected, and connect the parameter adjustment instrument 41 to different interfaces;

[0052] Further, the parameter adjustment module 411 is adjusted, and the test program is sent to the detection device 30 and the display screen through the signal sending module 412 to start detecting the picture parameters;

[0053] Furthermore, after the image detection is completed, the signal recognition module 413 reads the detection parameters of the detection device 30, converts them into data information, and determines whether the quality inspection is qualified.

[0054] According to the above device, a display screen image quality inspection method is also provided, comprising the following steps:

[0055] Step 1, fix the display screen to be inspected, fix the display screen to be inspected on the top of the base 10 through the support device 20, with the screen display end facing the inspection device 30;

[0056] Step 2, adjusting the detection angle, adjusting the shooting angle of the high-frequency light sensor 33 through the measuring point adjustment component 32, and using the laser line emitted by the laser tube 336 to assist in observing the picture frame;

[0057] Step 3, automatic picture quality inspection, connect the parameter adjuster 41 through the universal adapter plate 42, output the pre-set test picture through the parameter adjuster 41, start the light curtain component 31 and the high-frequency light sensor 33 synchronously, and detect the brightness, chromaticity, bad pixels and refresh rate of the display screen to see if they meet the standards;

[0058] Step 4, quality inspection result feedback, the high-frequency light sensor 33 sends the detected data to the parameter adjustment instrument 41, and the staff can check the test results through the parameter adjustment instrument 41 to determine whether the display screen image is qualified.

[0059] The specific process of the present invention is as follows:

[0060] First, according to the specifications of the display screen, adjust the angle of the first damping turntable 21 and the length of the telescopic rod 222, and install the display screen in the first J-shaped plate 221 and the second J-shaped plate 223 toward the detection device 30, and ensure that the sponge pad 224 is stuck on the display screen base. Then, according to the size of the display screen, slide the slider 322 to adjust the position on the slide rail 321. In this process, the laser emitted by the laser tube 336 assists in adjusting the position. Rotate the second damping turntable 323 and the rotating rod 3242 to rotate the angle inside the hemispherical disk 3241 to adjust the shooting angle of the high-frequency photosensor 33. Then, the fixing frame 311 and the high-frequency photosensor 33 are connected to the central control device 40 through the signal line, and the detection program is started. You can select the interface model of the display screen to be inspected. The adapter board 42 can connect the parameter adjuster 41 with different interfaces, adjust the parameter adjustment module 411, send the test program to the detection device 30 and the display screen through the signal sending module 412, start to detect the picture parameters, the light screen 312 and the high-frequency photosensor 33 work through the program, the brightness detection module 331, the color gamut detection module 332, the bad pixel detection module 333, and the refresh rate detection module 334 respectively detect the brightness, color gamut, bad pixels and refresh rate of the display screen. During this process, the indicator light 337 prompts the detection progress by lighting up lights of different colors. After the detection is completed, the data feedback module 335 sends the data to the central control device 40, and the signal recognition module 413 reads the detection parameters of the detection device 30, converts them into data information, and determines whether the quality inspection is qualified.

[0061] The above embodiments are only for illustrating the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the present invention.

Claims

1. A display screen image quality inspection device, comprising a base (10), a platform (11) arranged at one end of the base (10), characterized in that: A supporting device (20) disposed on the top of the base (10), a detection device (30) disposed on one side of the base (10), and a central control device (40) disposed on the top of the platform (11); The supporting device (20) comprises two first damping turntables (21) arranged at two ends of the top of the base (10), and a telescopic clamping component (22) arranged on the top of the first damping turntable (21); The detection device (30) comprises a light curtain component (31) arranged on one side of the support device (20), a measuring point adjustment component (32) arranged on one side of the base (10), and a high-frequency light sensor (33) arranged on the top of the measuring point adjustment component (32); The central control device (40) comprises a parameter adjustment instrument (41) disposed on the top of the platform (11), and a universal adapter plate (42) disposed at one end of the parameter adjustment instrument (41); The telescopic clamping component (22) comprises a first J-shaped plate (221) arranged on the top of the first damping rotary plate (21), two telescopic rods (222) arranged inside the first J-shaped plate (221), a second J-shaped plate (223) arranged at the execution end of the telescopic rod (222), and a sponge pad (224) arranged inside the first J-shaped plate (221) and the second J-shaped plate (223); The light curtain component (31) comprises a fixing frame (311) arranged on one side of the supporting device (20), and a light curtain screen (312) arranged on the fixing frame (311); The measuring point adjustment component (32) comprises a slide rail (321) arranged on the base (10), a slider (322) slidably arranged on the top of the slide rail (321), a second damping rotary disk (323) arranged on the top of the slider (322), and an angle adjustment component (324) arranged on the top of the second damping rotary disk (323); The angle adjustment assembly (324) comprises a hemispherical disk (3241) arranged on the top of the second damping rotating disk (323), and a rotating rod (3242) hinged inside the hemispherical disk (3241).

2. A display screen image quality inspection device according to claim 1, characterized in that: The high-frequency light sensor (33) internally integrates a brightness detection module (331), a color gamut detection module (332), a bad pixel detection module (333), a refresh rate detection module (334), and a data feedback module (335).

3. A display screen image quality inspection device according to claim 1, characterized in that: The high-frequency light sensor (33) comprises four laser light tubes (336) on a side wall and a plurality of indicator lights (337) arranged on one side of the high-frequency light sensor (33).

4. A display screen image quality inspection device according to claim 1, characterized in that: The parameter adjustment instrument (41) internally integrates a parameter adjustment module (411), a signal sending module (412), and a signal identification module (413).

5. A display screen image quality inspection device according to claim 1, characterized in that: The universal adapter board (42) is provided with mainstream display screen adapter interfaces such as HDMI, DP, VGA, and Type-C.

6. According to the display screen image quality inspection device according to any one of claims 1 to 5, a display screen image quality inspection method is also provided, characterized in that: The following steps are involved: Step 1, fixing the display screen to be inspected, fixing the display screen to be inspected on the top of the base (10) through a supporting device (20), with the screen display end facing the inspection device (30); Step 2, adjusting the detection angle, adjusting the shooting angle of the high-frequency light sensor (33) through the measuring point adjustment component (32), and using the laser line emitted by the laser tube (336) to assist in observing the picture frame; Step 3, automatic image quality inspection, connecting the parameter adjustment instrument (41) via the universal adapter plate (42), outputting a pre-set detection image via the parameter adjustment instrument (41), synchronously starting the light curtain component (31) and the high-frequency light sensor (33), and detecting the brightness, chromaticity, bad pixels, and refresh rate of the display screen to see if they meet the standards; Step 4, quality inspection result feedback, the high-frequency light sensor (33) sends the detected data to the parameter adjustment instrument (41), and the staff can check the test results through the parameter adjustment instrument (41) to determine whether the display screen image is qualified.

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