CN106200036B - Lighting detection equipment - Google Patents
Lighting detection equipment Download PDFInfo
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- CN106200036B CN106200036B CN201610490484.1A CN201610490484A CN106200036B CN 106200036 B CN106200036 B CN 106200036B CN 201610490484 A CN201610490484 A CN 201610490484A CN 106200036 B CN106200036 B CN 106200036B
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- display panel
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
The invention discloses lighting detection equipment which comprises a base station and an image acquisition device, wherein the base station is used for bearing a display panel to be detected, the image acquisition device is positioned above the base station and is used for acquiring a main visual angle image of the display panel to be detected, the display panel to be detected is arranged on the base station, the lighting detection equipment also comprises at least one reflector, the reflector is used for acquiring a side view angle image of the display panel to be detected from the side surface of the display panel to be detected and reflecting the acquired side view angle image to the image acquisition device, and the image acquisition device is also used for acquiring a side view angle image of the display panel to be detected, which is reflected to the image acquisition device by the reflector. The lighting detection device of the invention can effectively shorten the detection time, in addition, the number of the image acquisition devices can be reduced, and the measurement times can be reduced.
Description
Technical Field
The invention relates to the technical field of liquid crystal display detection, in particular to lighting detection equipment.
Background
In the field of display panel production, a lighting test for a display panel by a lighting detection device is required, and the lighting test stage is important for quality control of the display panel, and whether the display panel has a bad spot (e.g., a bright spot or a dark spot) can be detected in the lighting test stage.
In the conventional lighting detection method, the detection technician often performs visual inspection to evaluate the display effect of the display panel, which is relatively labor-consuming and material-consuming. In another mode, a high-resolution camera is adopted to collect and analyze each picture of the display panel, so as to evaluate the display effect of the display panel.
However, the display panel is generally disposed under the camera, and only images with positive viewing angles can be detected, and some mura-type displays are poor and can be detected from the side viewing angles of the display panel. Therefore, if a plurality of cameras are used for detecting from different angles, the cost can be increased, and if one camera respectively collects images of all angles, the detection time can be overlong.
Therefore, how to conveniently and rapidly perform multi-directional detection on the display panel becomes a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention aims to solve at least one technical problem in the prior art and provides lighting detection equipment.
In order to achieve the above object, the present invention provides a lighting detection apparatus, which includes a base station and an image acquisition device, where the base station is configured to carry a display panel to be detected, and the image acquisition device is located above the base station and is configured to acquire a main viewing angle image of the display panel to be detected, where the lighting detection apparatus further includes at least one reflector, the reflector is configured to acquire a side viewing angle image of the display panel to be detected from a side surface of the display panel to be detected and reflect the acquired side viewing angle image to the image acquisition device, and the image acquisition device is further configured to acquire the side viewing angle image reflected by the reflector to the image acquisition device.
Preferably, the image acquisition device comprises a camera.
Preferably, the reflecting piece comprises a plane reflecting mirror, and the plane reflecting mirror is movably connected with the base station, so that an included angle between the reflecting surface of the reflecting piece and the base station can be adjusted.
Preferably, the number of the reflecting members is four, and the position of each reflecting member corresponds to the side edge of the display panel to be detected.
Preferably, the lighting detection equipment further comprises a positioning piece, and the positioning piece is arranged on the bearing surface of the base station and used for positioning the display panel to be detected.
Preferably, the lighting detection device further includes a processor, the processor is in communication connection with the image acquisition device, preset image information is arranged inside the processor, and the processor can compare an image acquired by the image acquisition device with the preset image information to determine whether the display panel to be detected has defective pixels, where the defective pixels are pixels having a gray scale value different from a gray scale value of pixels at corresponding positions in the preset image information.
Preferably, the lighting detection device further includes a processor, the processor is in communication connection with the image acquisition device, the lighting detection device is configured to control the display panel to be detected to display a pure-color test image, and the processor can compare gray-scale values displayed by each pixel on the display panel to be detected in the acquired image to determine whether there is a defective pixel on the display panel to be detected, where the defective pixel is a pixel whose gray-scale value is different from the gray-scale value of at least a predetermined proportion of pixels in the acquired image.
Preferably, the lighting detection apparatus further includes a first moving mechanism, and the first moving mechanism is configured to move the base table so that the side view angle image reflected by the display panel to be detected and the reflector on the base table falls within the field of view of the image acquisition device.
Preferably, the lighting detection device includes a second moving mechanism, and the second moving mechanism is capable of adjusting an included angle between the reflecting surface of the reflector and the base.
Preferably, the lighting detection device further includes a control module, and the control module is configured to turn on or off the image acquisition device: and
the control module is used for controlling the movement direction of the first moving mechanism and/or the second moving mechanism.
Preferably, the lighting detection device further comprises a bad position recording module, and the bad position recording module is used for recording the position of a pixel with a bad occurrence on the display panel to be detected.
When the lighting detection equipment is used for detecting the display panel to be detected, emergent light rays of the light-emitting surface of the display panel to be detected can be incident to the reflecting piece to serve as incident light rays of the reflecting piece, and then the incident light rays are reflected to the image acquisition device by the reflecting piece, so that the image acquisition device can acquire side view angle images of the display panel to be detected. In addition, the image acquisition device is positioned above the base station and can acquire the main visual angle image of the display panel to be detected, so that the lighting detection equipment can simultaneously acquire images displayed by the display panel to be detected in different directions during lighting test.
The lighting detection device of the invention can effectively shorten the detection time, in addition, the number of the image acquisition devices can be reduced, and the measurement times can be reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a lighting detection device in an embodiment.
Description of the reference numerals
100: lighting detection equipment;
110: a base station;
120: an image acquisition device;
130: a reflector;
200: and (5) detecting the display panel.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Referring to fig. 1, the lighting detection apparatus 100 of the present invention mainly includes a base 110 and an image capturing device 120, where the base 110 is used to carry a display panel 200 to be detected, and another image capturing device 120 may be located above the base 110, so as to conveniently capture a main viewing angle image of the display panel 200 to be detected, which is set on the base 110, where the main viewing angle image is an image that is displayed when the display panel 200 to be detected is obtained from the front side of the display panel 200 to be detected by using the image capturing device 120 set above the base 110 for lighting test.
The lighting detection apparatus 100 further includes at least one reflector 130, where the reflector 130 is configured to obtain a side view angle image of the display panel 200 to be detected from a side surface of the display panel 200 to be detected, and reflect the obtained side view angle image to the image obtaining device 120, and the image obtaining device 120 is further configured to obtain a side view angle image reflected by the reflector 130 to the image obtaining device 120.
In the field of display panel production, it is necessary to perform a lighting test on a display panel through lighting detection, and the lighting test stage is important for quality control of the display panel, and it can detect whether the display panel has bad spots, some of which cannot be detected from a main viewing angle of the display panel, such as mura-type bad images, and need to be detected from different viewing angle directions of the display panel. As will be readily understood by those skilled in the art, the lighting detection apparatus 100 further includes an image driving module for driving the display panel 200 to be detected to display an image. When the display panel 200 to be detected is lighted up and detected, the image driving module is used for driving the display panel 200 to be detected to display a test image.
With the lighting detection apparatus 100 provided in this embodiment, when performing a lighting test, an image of the display panel 200 to be detected is obtained through the image obtaining device 120 and the reflector 130, which are respectively disposed, wherein an emergent light ray of the light emitting surface of the display panel 200 to be detected can be incident on the reflector 130 as an incident light ray of the reflector 130, and then the reflector 130 reflects the incident light ray to the image obtaining device 120, so that the image obtaining device 120 can obtain a side view angle image of the display panel 200 to be detected. Since the image capturing device 120 is located above the base 110 and can capture the main viewing angle image of the display panel 200 to be detected, the lighting detection apparatus 100 can simultaneously capture images of the display panel 200 to be detected in different orientations during the lighting test.
The lighting detection apparatus 100 of the present embodiment can effectively shorten the detection time, and in addition, the number of image acquisition devices 120 can be reduced, and the number of measurements can be reduced.
Preferably, a specific structure of the image capturing device 120 may include a camera, and the structure is simple. And thirdly, in combination with the reflector 130, the camera can acquire the main view angle image and the side view angle image at the same time by shooting once, and more specifically, a high-resolution camera can be adopted, and the high-resolution camera can more clearly acquire the image of the display panel 200 to be detected, although the structural form of the image acquisition device 120 of the embodiment is not limited thereto, and other image acquisition devices 120 with the same function may also be adopted.
Preferably, a specific structure of the reflection member 130 may include a plane mirror, wherein the plane mirror is movably connected to the base station 110, the movable connection may be rotatably connected to enable an included angle between the reflection surface of the reflection member 130 and the base station 110 to be adjusted, the included angle between the reflection surface and the base station 110 is changed, the included angle between the reflection surface and the display panel 200 to be detected is also changed accordingly, and it is further possible to comprehensively detect whether a dead pixel or other poor display occurs on the display panel 200 to be detected.
The use of a flat mirror as the reflecting member 130 is simple in structure. In addition, according to the optical imaging principle, during the lighting test, the plane mirror receives the incident light from the side view angle of the display panel 200 to be detected, and reflects the incident light to the image acquisition device 120, so that whether the display panel 200 to be detected has poor display can be effectively detected. Of course, the specific structure of the reflective member 130 is not limited thereto, and other reflective members 130 having a reflective function may be used.
Preferably, the number of the reflectors 130 is four, the position of each reflector 130 corresponds to the side of the display panel 200 to be detected, the general shape of the display panel 200 to be detected is rectangular, and in addition, during lighting test, the display condition of the display panel 200 to be detected needs to be detected from various angles, so that the four reflectors 130 are arranged, on one hand, the requirement of matching with the number of the sides of the display panel 200 to be detected is met, on the other hand, the requirement of detecting the display condition of the display panel 200 to be detected from different positions is met, and comprehensive detection can be achieved.
Preferably, the lighting detection apparatus 100 further includes a positioning member (not shown) disposed on the carrying surface of the base 110 for positioning the display panel 200 to be detected.
The positioning member is capable of positioning the display panel 200 to be detected. Preferably, the lighting detection apparatus 100 may include a plurality of positioning pieces for positioning the display panels 200 to be detected in different sizes, so that the versatility of the lighting detection apparatus 100 may be improved.
Preferably, the lighting detection device 100 further includes a processor (not shown in the figure), the processor is in communication connection with the image acquisition device 120, the processor is internally provided with preset image information, and the processor can compare the image acquired by the image acquisition device 120 with the preset image information to determine whether the display panel 200 to be detected has defective pixels, wherein the defective pixels are pixels with different gray-scale values from those of pixels at corresponding positions in the preset image information, and the preset image information refers to a series of display images meeting standard requirements when a lighting test is performed.
Preferably, the lighting detection apparatus 100 further includes a processor, the processor is connected in communication with the image acquisition device 120, the lighting detection apparatus 100 can control the display panel 200 to be detected to display a test image of a pure color, and the processor can compare gray-scale values displayed by each pixel on the display panel 200 to be detected in the acquired image to determine whether there is a defective pixel on the display panel 200 to be detected, where the defective pixel is a pixel whose gray-scale value is different from the gray-scale value of at least a predetermined proportion of pixels in the acquired image. In the present invention, there is no special requirement for the specific value of the predetermined ratio, and it can be determined by the production requirement of the display panel 200 to be tested. For example, the predetermined ratio may be selected between 90% and 99%.
Whether each pixel point on the display panel 200 to be detected is displayed normally is judged through the processor, so that misjudgment or poor detection caused by subjective judgment of technicians can be avoided, the processor can be a central processing unit, and the central processing unit can be embedded in a notebook computer or a desktop computer or other equipment with the same function.
Of course, in order to make it easier for a technician to find the position of the defective pixel on the display panel 200 to be detected when the display panel 200 to be detected is determined to be defective, the lighting detection apparatus 100 may further include a defective position recording module (not shown in the figure) for recording the position of the defective pixel on the display panel 200 to be detected. Accordingly, the technician can repair the display panel 200 to be inspected according to the position of the defective pixel outputted from the defective position recording module.
Preferably, the lighting detection apparatus 100 further includes a first moving mechanism (not shown) for moving the base 110 so that the side view angle image reflected by the display panel 200 to be detected and the reflector 130 on the base 110 falls within the field of view of the image capturing device 120.
The first moving mechanism is arranged, when lighting detection is performed, adjustment can be performed according to the display panels 200 to be detected with different sizes, so that the side view angle images reflected by the display panels 200 to be detected and the reflectors 130 can fall within the visual field of the image acquisition device 120, and the display panels 200 to be detected can be comprehensively analyzed. Specifically, the first moving mechanism may move up and down, or move left and right, and the specific structure form of the first moving mechanism may adopt a combination of a guide rail and an air cylinder, wherein a part of the structure of the base 110 may be located in a sliding groove on the guide rail. The base 110 may be driven by a cylinder to move in the vertical direction by driving the base to move along the guide rail. Of course, the specific structural form of the first moving mechanism can also adopt other forms, and the moving function can be met.
Preferably, the lighting detection apparatus 100 further includes a second moving mechanism (not shown) capable of adjusting an angle between the reflection surface of the reflector 130 and the base 110.
The second moving mechanism that sets up, when carrying out the detection of lighting a lamp, can wait to detect display panel 200 according to not unidimensional, adjust to make the plane of reflection piece 130 can comprehensively reflect the side view angle image of waiting to detect display panel 200, improve and detect the rate of accuracy.
Preferably, to further implement the automatic control, the lighting detection apparatus 100 further includes a control module (not shown in the figure) for controlling the image obtaining device 120 to be turned on or off to obtain the display image of the display panel 200 to be detected. In addition, the control module can also be used for controlling the movement direction of the first moving mechanism and/or the second moving mechanism.
The control module can realize automatic control, and a user can effectively control the lighting detection equipment 100 only by operating the control module to complete the lighting test of the display panel 200 to be detected.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (11)
1. The lighting detection equipment comprises a base station and an image acquisition device, wherein the base station is used for bearing a display panel to be detected, the image acquisition device is positioned above the base station and is used for acquiring a main visual angle image of the display panel to be detected, the main visual angle image is arranged on the base station, the lighting detection equipment is characterized by further comprising at least one reflector, the reflector is used for acquiring a side view angle image of the display panel to be detected from the side surface of the display panel to be detected and reflecting the acquired side view angle image to the image acquisition device, and the image acquisition device is also used for acquiring the side view angle image reflected to the image acquisition device by the reflector;
the reflecting piece comprises a plane reflecting mirror, and the plane reflecting mirror is movably connected with the base station so that an included angle between a reflecting surface of the reflecting piece and the base station can be adjusted;
the number of the reflecting pieces is four, and the position of each reflecting piece corresponds to the side edge of the display panel to be detected, so that the image acquisition device can detect the display condition of the display panel to be detected from different directions at the same time.
2. The lighting detection device of claim 1 wherein the image acquisition means comprises a camera.
3. The lighting detection device according to claim 1 or 2, further comprising a positioning member, disposed on the carrying surface of the base, for positioning the display panel to be detected.
4. The lighting detection device according to claim 1 or 2, wherein the lighting detection device further includes a processor, the processor is in communication connection with the image acquisition device, preset image information is provided inside the processor, and the processor can compare an image acquired by the image acquisition device with the preset image information to determine whether the display panel to be detected has defective pixels, wherein the defective pixels are pixels with different gray-scale values from those of pixels at corresponding positions in the preset image information.
5. The lighting detection device according to claim 1 or 2, wherein the lighting detection device further includes a processor, the processor is in communication connection with the image acquisition device, the lighting detection device is configured to control the display panel to be detected to display a pure test image, and the processor is capable of comparing gray-scale values displayed by pixels on the display panel to be detected in the acquired image to determine whether there is a defective pixel on the display panel to be detected, where the defective pixel is a pixel whose gray-scale value is different from a gray-scale value of at least a predetermined proportion of pixels in the acquired image.
6. The lighting detection device according to claim 1 or 2, further comprising a first moving mechanism configured to move the base so that the side view angle image reflected by the display panel to be detected and the reflector on the base falls within a field of view of the image acquisition device.
7. The lighting detection device of claim 6, further comprising a control module configured to turn on or off the image acquisition device: and
the control module is used for controlling the movement direction of the first moving mechanism.
8. The lighting detection device according to claim 1 or 2, wherein the lighting detection device includes a second moving mechanism capable of adjusting an angle between a reflection surface of the reflector and the base.
9. The lighting detection device of claim 8, further comprising a control module configured to turn on or off the image acquisition device: and
the control module is used for controlling the motion direction of the second moving mechanism.
10. The lighting detection device according to claim 1 or 2, characterized in that the lighting detection device further includes a first moving mechanism for moving the base table so that the side view angle image reflected by the display panel to be detected and the reflector on the base table falls within a field of view of the image acquisition device;
the lighting detection equipment further comprises a second moving mechanism, and the second moving mechanism can adjust an included angle between the reflecting surface of the reflector and the base station;
the lighting detection device further comprises a control module, and the control module is used for turning on or off the image acquisition device: and
the control module is used for controlling the movement directions of the first moving mechanism and the second moving mechanism.
11. The lighting detection device according to claim 1 or 2, characterized in that the lighting detection device further comprises a defective position recording module for recording a position of a pixel on the display panel to be detected where a defect occurs.
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| CN201610490484.1A CN106200036B (en) | 2016-06-28 | 2016-06-28 | Lighting detection equipment |
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| CN201610490484.1A CN106200036B (en) | 2016-06-28 | 2016-06-28 | Lighting detection equipment |
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| CN106200036B true CN106200036B (en) | 2020-03-13 |
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| CN109739032A (en) * | 2019-01-24 | 2019-05-10 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal check machine and its detection method in a kind of smooth orientation back box |
| CN109884811A (en) * | 2019-03-21 | 2019-06-14 | 深圳市华星光电技术有限公司 | Defects of display panel height detection method |
| CN109855672A (en) * | 2019-04-25 | 2019-06-07 | 佛山市南海区广工大数控装备协同创新研究院 | A kind of band chamfering radian glass plate automatic detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001108424A (en) * | 1999-10-13 | 2001-04-20 | Central Glass Co Ltd | Method of inspecting surface irregularities of glass substrate |
| TW200508597A (en) * | 2003-08-20 | 2005-03-01 | Machvision Inc | Apparatus for automatically inspecting image quality of LCD panel |
| CN103217436A (en) * | 2013-03-06 | 2013-07-24 | 京东方科技集团股份有限公司 | Backlight module group defect detection method and equipment |
| CN203824928U (en) * | 2014-04-01 | 2014-09-10 | 华南理工大学 | Product outer surface defect image acquisition device based on machine vision |
-
2016
- 2016-06-28 CN CN201610490484.1A patent/CN106200036B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001108424A (en) * | 1999-10-13 | 2001-04-20 | Central Glass Co Ltd | Method of inspecting surface irregularities of glass substrate |
| TW200508597A (en) * | 2003-08-20 | 2005-03-01 | Machvision Inc | Apparatus for automatically inspecting image quality of LCD panel |
| CN103217436A (en) * | 2013-03-06 | 2013-07-24 | 京东方科技集团股份有限公司 | Backlight module group defect detection method and equipment |
| CN203824928U (en) * | 2014-04-01 | 2014-09-10 | 华南理工大学 | Product outer surface defect image acquisition device based on machine vision |
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