CN107942554B - Display screen detection device - Google Patents
Display screen detection device Download PDFInfo
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- CN107942554B CN107942554B CN201810030519.2A CN201810030519A CN107942554B CN 107942554 B CN107942554 B CN 107942554B CN 201810030519 A CN201810030519 A CN 201810030519A CN 107942554 B CN107942554 B CN 107942554B
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- conversion layer
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- 238000001514 detection method Methods 0.000 title claims abstract description 72
- 238000006243 chemical reaction Methods 0.000 claims abstract description 49
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- 239000003086 colorant Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 9
- 230000008859 change Effects 0.000 claims description 4
- 239000012074 organic phase Substances 0.000 claims description 3
- 239000012782 phase change material Substances 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000012780 transparent material Substances 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 abstract description 5
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- 229910044991 metal oxide Inorganic materials 0.000 description 2
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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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Electroluminescent Light Sources (AREA)
- Radiation Pyrometers (AREA)
Abstract
The invention provides a display screen detection device and a preparation method thereof, wherein the display screen detection device comprises: a display screen; a polarizer. The light emitting side is arranged on the display screen; a photothermal conversion layer disposed on the polarizer and mapping corresponding thermal energy on a corresponding region of the photothermal conversion layer based on the optical energy of the exit light of the display screen at different regions; a detection component configured to determine a display quality of the display screen based on the thermal energy of each corresponding region on the light-to-heat conversion layer. The embodiment of the invention has the characteristics of high detection precision and simple structure.
Description
Technical Field
The embodiment of the invention relates to the field of display equipment, in particular to a display screen detection device.
Background
A Thin Film Transistor liquid Crystal Display (Thin Film Transistor L liquid Crystal Display, abbreviated as TFT-L CD) is a Display device with wide size range, low energy consumption and low radiation, and is composed of a TFT substrate (TFT), a Color Filter substrate (CF), and a liquid Crystal layer filled between the TFT substrate and the Color Filter substrate.
The method has the advantages that the image quality is an important evaluation factor of a TFT-L CD product, the brightness unevenness is the most common factor influencing the image quality and the most important factor influencing the image quality, most of the brightness unevenness directly influences the sale of the product, even the use of the product, so the detection and the interception of the brightness unevenness are particularly important, most of the brightness unevenness is intercepted during ET detection at present, the waste of materials and production time caused by the fact that a bad sample flows to a subsequent process is prevented, but the factors of the brightness unevenness are diversified and complicated, the sensitivity of each person to the brightness unevenness is different, most of missed detection exists, and the detection precision is inaccurate.
Disclosure of Invention
The embodiment of the invention provides a display screen detection device and electronic equipment capable of accurately detecting the condition of uneven brightness of a display screen.
In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:
a display screen detection apparatus, comprising:
a display screen;
the polaroid is arranged on the light emitting side of the display screen;
a photothermal conversion layer disposed on the polarizer and mapping corresponding thermal energy on a corresponding region of the photothermal conversion layer based on the optical energy of the exit light of the display screen at different regions;
a detection component configured to determine a display quality of the display screen based on the thermal energy of each corresponding region on the light-to-heat conversion layer.
In a preferred embodiment, the detection assembly is further configured to determine at least one of a brightness uniformity of the display screen, a display defect area and a defect grade of the display screen based on a difference in thermal energy of each corresponding area on the photothermal conversion layer
In a preferred embodiment, the detection assembly comprises:
a thermal imager configured to acquire a thermal imaging image of the light-to-heat conversion layer;
and the detection module is used for judging the display quality of the display screen based on the color of the thermal imaging image acquired by the thermal imager in each area.
In a preferred embodiment, the detection module is further configured to determine whether a difference between colors of the thermal imaging images of the respective regions of the photothermal conversion layer is within a preset range, if so, the brightness of the display screen is uniform over the respective regions, otherwise, the brightness of the display screen is not uniform over the respective regions.
In a preferred embodiment, the monitoring module is further configured to determine a level of brightness non-uniformity of the display screen based on a maximum difference between colors of the thermographic image of the regions.
In a preferred embodiment, the apparatus further comprises:
a prompt module configured to output prompt information corresponding to the detection of the display quality of the display screen by the detection component;
the prompting module comprises a voice prompting unit or a display prompting unit.
In a preferred embodiment, a lower protective layer is disposed between the lower surface of the polarizer and the upper surface of the display screen, and an upper protective film is disposed between the lower surface of the photothermal conversion layer and the upper surface of the polarizer.
In a preferred embodiment, the upper protection film and the lower protection film are both made of transparent materials.
In a preferred embodiment, the photothermal conversion layer is composed of an organic phase change material or an inorganic phase change material.
The embodiment of the invention also provides a preparation method of the display screen detection device, which comprises the following steps:
preparing a polarizer 1 by using a preset preparation process, and forming an upper protective film 6 and a lower protective film 5 on the polarizer 1;
and forming the photothermal conversion layer on the polarizer 1 by adopting a printing or evaporation mode.
Based on the above disclosure, the embodiments of the present invention have the following advantages:
the method can realize that different illumination areas of the display screen can show different temperatures through the photothermal conversion layer, when the detection of the display screen or the post-process picture quality detection is executed, the surface of the photothermal conversion layer which is detected by the scanning surface of the thermal imager is utilized, and the poor position and the poor grade (if the area with high temperature shows white and the area with low temperature shows black) are confirmed through the imaging of the temperatures of different areas, so that the accuracy of uneven brightness detection and the standardization of judging grade are realized, the operation time of production line picture quality detection is shortened, and the product quality of a delivery sample is improved.
Drawings
FIG. 1 is a schematic structural diagram of a display screen detection apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a display screen detection device in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a detection assembly in the embodiment of the present invention.
Detailed Description
The following detailed description of specific embodiments of the present invention is provided in connection with the accompanying drawings, which are not intended to limit the invention.
It will be understood that various modifications may be made to the embodiments disclosed herein. Accordingly, the foregoing description should not be construed as limiting, but merely as exemplifications of embodiments. Other modifications will occur to those skilled in the art within the scope and spirit of the disclosure.
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and, together with a general description of the disclosure given above, and the detailed description of the embodiments given below, serve to explain the principles of the disclosure.
These and other characteristics of the invention will become apparent from the following description of a preferred form of embodiment, given as a non-limiting example, with reference to the accompanying drawings.
It should also be understood that, although the invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many other equivalent forms of the invention, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
The above and other aspects, features and advantages of the present disclosure will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.
Specific embodiments of the present disclosure are described hereinafter with reference to the accompanying drawings; however, it is to be understood that the disclosed embodiments are merely examples of the disclosure that may be embodied in various forms. Well-known and/or repeated functions and structures have not been described in detail so as not to obscure the present disclosure with unnecessary or unnecessary detail. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims and as a representative basis for teaching one skilled in the art to variously employ the present disclosure in virtually any appropriately detailed structure.
The specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," which may each refer to one or more of the same or different embodiments in accordance with the disclosure.
The embodiment of the invention is described in detail below with reference to the accompanying drawings, and the embodiment of the invention provides a display screen detection device, which can be used for detecting the uniformity of the brightness of a display screen, and can realize the detection of the display brightness of a corresponding area through a light-heat conversion principle, so that whether the brightness of the display screen is uniform or not is known, and the detection precision is high.
Fig. 1 and fig. 2 show a schematic structural diagram of a display screen detection device in an embodiment of the present invention, in which fig. 1 is a schematic structural diagram of the display screen detection device in an embodiment of the present invention, and fig. 2 is a schematic structural diagram of the display screen detection device in an embodiment of the present invention.
The display screen detection device in the embodiment of the present invention may include: a polarizer 1, a photothermal conversion layer 2, a detection assembly 3 and a display screen (not shown). The polarizer 1 may be disposed above the display panel to be detected (i.e., on the light emitting side of the display panel), and may be configured as an upper polarizer of the display panel. The photothermal conversion layer 2 is disposed on the polarizer 1, and the area of the photothermal conversion layer 2 is greater than or equal to the screen area of the display screen, and the photothermal conversion layer 2 can correspondingly cover the display screen. Thus, light emitted from the display panel in a display state passes through the polarizer 1 and is irradiated onto the photothermal conversion layer 2, and the photothermal conversion material of the photothermal conversion layer 2 can correspondingly convert the light energy of the part of light into heat (thermal energy), thereby changing the temperature of the photothermal conversion layer 2 in each corresponding region. Further, each of the display panel and the photothermal conversion layer 2 may be divided into a plurality of regions, and the respective regions of the display panel and the photothermal conversion layer 2 also correspond to each other. Accordingly, it is possible to realize mapping of the respective temperatures (thermal energies) on the corresponding regions of the photothermal conversion layer 2 based on the luminance values of the emitted light of the display screen at the different regions.
The detection member 3 can detect the temperature (thermal energy) of each region on the photothermal conversion layer 2 and judge the display quality of the display panel based on the temperature, such as whether the brightness of the display panel is uniform, and the display defective region and defective level of the display panel, and the like. Specifically, since the luminance of the emitted light emitted from each region of the display screen should be the same under normal conditions, and the temperature mapped by the photothermal conversion layer 2 should be the same at the corresponding region, the detection unit 3 can determine the temperature of each region of the photothermal conversion layer 2 to determine whether the luminance of the display screen is uniform, and can also determine the display region where the luminance of the display screen is non-uniform, that is, the region with poor display, and determine the level of the poor display according to the difference between the luminances of the regions.
Fig. 2 is a schematic flow chart of a detection assembly in an embodiment of the present invention, wherein the detection assembly may include a thermal imager 31 and a detection module 32 connected to the thermal imager 31. Wherein the thermal imager 31 can acquire a thermal image corresponding to the temperature of each region of the surface of the photothermal conversion layer 2 by means of infrared detection. Since different temperatures may correspondingly develop different colors during thermal imaging, the quality of the brightness of the display screen is determined based on the color difference of the thermal imaging image in each region.
The detection module 32 may determine the brightness uniformity of the display screen based on the thermal imaging image acquired by the thermal imaging instrument 31, specifically, may determine the brightness uniformity of the display screen based on the color of the thermal imaging image acquired by the thermal imaging instrument in each region, and if the thermal imaging images in each region are the same or have a small difference, determine the brightness uniformity of the display screen, and if there is an image color with a large difference, determine the brightness uniformity of the display screen.
Specifically, the detection module 31 may detect a color distribution condition on the thermal imaging image, and may obtain color values (gray values) of the thermal imaging image corresponding to the respective regions of the photothermal conversion layer, and may determine whether a difference between the color values (such as the gray values) of the thermal imaging image of the respective regions of the photothermal conversion layer 2 is within a preset range, where if the difference is within the preset range, the luminance of the display screen on the respective regions is uniform, and otherwise, the luminance of the display screen on the respective regions is non-uniform. A predetermined range may be stored in the detection module 32, where the predetermined range may represent the brightness difference allowed by the display screen, and when the difference between the gray-scale values of the image colors in the obtained thermal imaging image is within the predetermined range, the brightness of the display screen is represented to be uniform, and when the gray-scale values of the colors in a certain region and other regions exceed the predetermined range, the brightness of the display screen in the certain region is represented to be different from the brightness of other regions, i.e., the brightness of the display screen is not uniform.
Further, when determining that the brightness of the display screen is not uniform, the detecting module 31 may determine that a certain region is a bad region when the difference between the gray values of the image colors in the certain region and the other regions exceeds a preset range, or may determine that a certain region is a bad region when determining that the average value between the gray value of the image color in the certain region and the gray value between the gray values in the regions exceeds a second preset range. That is to say, the detection module 31 in the embodiment of the present invention may further determine a poor display area of the display screen. In addition, in a preferred embodiment, the detection module 31 may also determine the level of brightness non-uniformity of the display screen based on the maximum difference between the colors of the thermographic image of the regions. That is, the detection module 31 may determine the brightness unevenness level of the display screen based on the maximum difference between the color values of the regions corresponding to the photothermal conversion layer 2 displayed by the determined thermal imaging image, the greater the maximum difference, the higher the unevenness of the display screen is proved to be, and conversely, the smaller the difference, the lower the unevenness is proved to be.
Specifically, the detection module 31 may store a correspondence relationship between the brightness unevenness level and the color value difference, so that the detection module 31 may determine the unevenness level degree based on the determined maximum difference value of the color values between the imaged images of the respective areas, thereby helping a user or a technician determine whether the corresponding display screen can be applied to the electronic device, or select which electronic device to configure correspondingly.
In addition, the detection apparatus in the embodiment of the present invention may further include a prompt module 4 in communication connection with the detection module 32 in the detection component 3, where the prompt module 4 may correspondingly output a detection result of the display quality of the display screen detected by the detection module 31, and particularly, may generate and output corresponding prompt information when the detection component detects that the brightness of the display screen is not uniform; the prompting module comprises a voice prompting unit or a display prompting unit. That is, the detecting module 32 in the embodiment of the present invention may send the first signal to the prompting module 4 when it is determined that the brightness of the display screen is not uniform, and the prompting module generates and outputs the prompting information indicating that the brightness is not uniform based on the first signal.
Or, in another embodiment, the detection module 32 may send the level information of the uneven brightness (poor display) of the display screen to the prompt module 4, and the prompt module 4 generates and outputs corresponding prompt information based on the level information to prompt the user of the current level of the uneven brightness, so as to help the user judge the quality of the display screen. The output prompting information can be voice output or display output, namely the prompting module can comprise a voice prompting unit and a display prompting unit.
In addition, in the embodiment of the present invention, a lower protective layer 5 is disposed between the lower surface of the polarizer 1 and the upper surface of the display panel, and an upper protective film 6 is disposed between the lower surface of the light-to-heat conversion layer 2 and the upper surface of the polarizer 1. The upper protective film 6 and the lower protective film 5 are made of a transparent material, such as a resin material. And the lower protective film 5 may also be configured as a release film with the display screen.
In addition, the photothermal conversion layer 2 in the embodiment of the invention may be composed of an organic phase change material or an inorganic phase change material. Any material that can change its temperature by generating heat energy according to the emitted light from the display panel may be used as the photothermal conversion layer 2 in the embodiment of the invention.
The preparation processes of the polarizer 1 and the photothermal conversion layer 2 in the embodiment of the invention are as follows:
1. preparing a polarizer 1 by using a preset preparation process, and forming an upper protective film 6 and a lower protective film 5 on the polarizer 1; wherein the polarizer 1 may be manufactured using a conventional manufacturing process;
2. the photothermal conversion layer is formed on the upper protective film 6 on the non-film surface of the polarizer 1 by printing or vapor deposition (organic materials are generally printed, and metal oxides are generally vapor deposited), wherein titanium oxynitride and the like can be used as metal oxide materials, and polymer-synthesized photothermal conversion materials can be used as organic materials.
In addition, the detecting member 3 may be configured such that the detecting member 3 can obtain an infrared imaging image (thermal imaging image) of the photothermal conversion layer and analyze the uniformity of the display screen.
By the configuration of the embodiment of the invention, the regions receiving different illumination of the display screen through the photothermal conversion layer 2 can show different temperatures, and when the detection of the display screen or the picture quality detection of the subsequent process is executed, the surface of the photothermal conversion layer 2 which is detected is scanned by the thermal imager, and the temperatures of the different regions are imaged to confirm the position and the poor grade of the poor product (for example, the region with high temperature indicates white, and the region with low temperature indicates black), so that the accuracy of the uneven brightness detection and the standardization of judgment are realized, the operation time of the production line picture quality detection is shortened, and the product quality of the delivered samples is improved.
In addition, the embodiment of the invention also provides electronic equipment, which can comprise the display screen detection device and the display screen, wherein the display screen detection device can be used for detecting the brightness uniformity of the display screen, so that the quality of the display screen of the electronic equipment can be conveniently detected by the electronic equipment.
The electronic device in the embodiment of the present invention may be, for example, a mobile phone, a computer device, a television, or other electronic devices with a display screen.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the electronic device to which the data processing method described above is applied may refer to the corresponding description in the foregoing product embodiments, and details are not repeated herein.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the scope of the present invention is defined by the claims. Various modifications and equivalents may be made by those skilled in the art within the spirit and scope of the present invention, and such modifications and equivalents should also be considered as falling within the scope of the present invention.
Claims (9)
1. A display screen detection apparatus, comprising:
a display screen;
the polaroid is arranged on the light emitting side of the display screen;
a photothermal conversion layer disposed on the polarizer and mapping corresponding thermal energy on a corresponding region thereof based on optical energy of the light emitted from the display panel at different regions;
a detection component configured to determine a display quality of the display screen based on the thermal energy of each corresponding region on the light-to-heat conversion layer.
2. The apparatus of claim 1, wherein the detection component is further configured to determine at least one of a brightness uniformity of the display screen, a poorly displayed area of the display screen, and a poor rating based on a difference in thermal energy of each corresponding area on the light-to-heat conversion layer.
3. The apparatus of claim 1 or 2, wherein the detection component comprises:
a thermal imager configured to acquire a thermal imaging image of the light-to-heat conversion layer;
and the detection module is used for judging the display quality of the display screen based on the color of the thermal imaging image acquired by the thermal imager in each area.
4. The apparatus of claim 3, wherein the detection module is further configured to determine whether a difference between colors of the thermographic image of the respective regions of the photothermal conversion layer is within a preset range, wherein if the difference is within the preset range, the brightness of the display screen is uniform over the respective regions, and otherwise, the brightness of the display screen is not uniform over the respective regions.
5. The apparatus of claim 3, wherein the detection module is further configured to determine a level of brightness non-uniformity of the display screen based on a maximum difference between colors of the thermographic image of the regions.
6. The apparatus of claim 1, further comprising:
a prompt module configured to output prompt information corresponding to the detection of the display quality of the display screen by the detection component;
the prompting module comprises a voice prompting unit or a display prompting unit.
7. The device according to claim 1, wherein a lower protective layer is disposed between the lower surface of the polarizer and the upper surface of the display panel, and an upper protective film is disposed between the lower surface of the photothermal conversion layer and the upper surface of the polarizer.
8. The device of claim 7, wherein the upper protective film and the lower protective film are both made of transparent material.
9. The device of claim 1, wherein the light-to-heat conversion layer is comprised of an organic phase change material or an inorganic phase change material.
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| CN201810030519.2A CN107942554B (en) | 2018-01-12 | 2018-01-12 | Display screen detection device |
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| CN201810030519.2A CN107942554B (en) | 2018-01-12 | 2018-01-12 | Display screen detection device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001091747A (en) * | 1999-09-27 | 2001-04-06 | Nitto Denko Corp | Liquid crystal cell substrate |
| CN101283627A (en) * | 2005-10-07 | 2008-10-08 | 3M创新有限公司 | Radiation curable thermal transfer elements |
| CN101452122A (en) * | 2007-11-30 | 2009-06-10 | 北京京东方光电科技有限公司 | LCD displaying effect detection device and method |
| CN103996788A (en) * | 2014-05-21 | 2014-08-20 | 广东威创视讯科技股份有限公司 | LED device for display screen and manufacturing method thereof |
| CN205483494U (en) * | 2016-01-04 | 2016-08-17 | 固安翌光科技有限公司 | Luminance detecting system of OLED device |
| CN107356343A (en) * | 2017-06-27 | 2017-11-17 | 秦皇岛富连京电子股份有限公司 | Semiconductor refrigerating chip detection method based on infrared thermal imaging technique |
-
2018
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001091747A (en) * | 1999-09-27 | 2001-04-06 | Nitto Denko Corp | Liquid crystal cell substrate |
| CN101283627A (en) * | 2005-10-07 | 2008-10-08 | 3M创新有限公司 | Radiation curable thermal transfer elements |
| CN101452122A (en) * | 2007-11-30 | 2009-06-10 | 北京京东方光电科技有限公司 | LCD displaying effect detection device and method |
| CN103996788A (en) * | 2014-05-21 | 2014-08-20 | 广东威创视讯科技股份有限公司 | LED device for display screen and manufacturing method thereof |
| CN205483494U (en) * | 2016-01-04 | 2016-08-17 | 固安翌光科技有限公司 | Luminance detecting system of OLED device |
| CN107356343A (en) * | 2017-06-27 | 2017-11-17 | 秦皇岛富连京电子股份有限公司 | Semiconductor refrigerating chip detection method based on infrared thermal imaging technique |
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