CN205318052U - But display device of automated inspection trouble - Google Patents
But display device of automated inspection trouble Download PDFInfo
- Publication number
- CN205318052U CN205318052U CN201620076179.3U CN201620076179U CN205318052U CN 205318052 U CN205318052 U CN 205318052U CN 201620076179 U CN201620076179 U CN 201620076179U CN 205318052 U CN205318052 U CN 205318052U
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- display panel
- light
- color sensor
- display
- polaroid
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- 238000007689 inspection Methods 0.000 title abstract 2
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000002310 reflectometry Methods 0.000 claims description 5
- 230000010287 polarization Effects 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract 1
- 239000004973 liquid crystal related substance Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 7
- 239000003086 colorant Substances 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000004020 luminiscence type Methods 0.000 description 2
- 239000010981 turquoise Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of display device fault detection, the utility model provides a but display device of automated inspection trouble, including display panel, the color sensor of setting above display panel, color sensor with still be provided with the polaroid between the display panel, polaroid transition ring border light gets into through the display panel reflection color sensor's light. The utility model discloses utilize display device to send out the polarization of light characteristic, the combination through polaroid and color sensor determines the demonstration trouble of vehicle display panel. Be applicable to the great display panel's of environment light change demonstration fault detection environment light and when strong, still can use color sensor to gather the set colour of display panel picture, judge whether display panel exists the demonstration trouble.
Description
Technical field
The utility model relate to a kind of can the display unit of detection failure automatically, belong to display equipment detection technique field.
Background technology
The main difference of indoor liquid crystal displays such as being arranged on the vehicle-mounted liquid crystal screens such as public transport, subway, high ferro and be arranged between building, elevator is: vehicle-mounted liquid crystal screen is along with the operation of vehicle, and environment light changes at any time; And indoor liquid crystal display can think that environment light remains unchanged substantially between building and elevator etc.
In prior art, the method for display fault of display screen display panel is to utilize color sensor to judge: allow display screen show set monochromatic picture (such as red picture, green picture and blue picture etc.). Color sensor detection liquid crystal display picture color, color sensor exports red turquoise (RGB) trichromatic color component of detected picture color. When the red picture of display screen display, in the RGB color component that now color sensor exports, if red color component is much larger than green color component, and red color component is also much larger than blue color component, what just can judge that display screen shows is red picture, display screen display trouble free. According to aforesaid method, it is possible to allow liquid crystal display show green picture or blue picture. The defect of this kind of method existence is: color sensor is the light intensity of the light around detecting sensor, both made to be affixed on color sensor liquid crystal display surface, also the environment light of surrounding cannot be avoided to enter color sensor, the summation of what that is color sensor detected is light that liquid crystal display sends and the environment light that surrounding leakage is entered.
As shown in Figure 1, when the light intensity of environment light is less than the light intensity of liquid crystal display, (being such as arranged on indoor liquid crystal display) when that is noise is less than useful signal, aforesaid method can judge whether liquid crystal display exists display fault normally; And when the light intensity of environment light is greater than the light intensity of liquid crystal display (such as, when that is noise is greater than useful signal, vehicle-mounted liquid crystal screen) sunlight sometimes may the situation of direct projection liquid crystal display, aforesaid method cannot judge whether liquid crystal display exists display fault. Utilize the situation that the method for display fault of color sensor detection liquid crystal display is only applicable to environment light and substantially remains unchanged, and when environment light is changed greatly, there will be erroneous judgement.
Practical novel content
For the deficiencies in the prior art, the fault of display screen when technical problem to be solved in the utility model is that how ambient light changes greatly.
For realizing the novel object of above-mentioned practicality, the utility model adopts following technical scheme:
The utility model provide a kind of can the display unit of detection failure automatically, comprise display panel, be arranged on the color sensor above display panel;
Polaroid also it is provided with between described color sensor and described display panel;
Described polaroid filters the light that environment light enters described color sensor through display panel reflection.
Can selection of land, described display panel is the display panel of outgoing elliptically polarized light.
Can selection of land, described panel surface be provided with reduce reflectivity plated film.
Can selection of land, the light of described polaroid through direction parallel with the light direction of display panel.
Can selection of land, described display unit is display device for mounting on vehicle.
Can selection of land, described color sensor and described polaroid are arranged on the corner of described display panel.
Compared with prior art, the utility model has following useful effect:
The utility model provide can the display unit of detection failure automatically, utilize the polarization characteristic of display unit luminescence, judged the display fault of car-mounted display panel by the combination of polaroid and color sensor. The display failure testing being applicable to the display panel that environment light changes greatly, such as, be arranged on the car-mounted display panel that public transport, subway, high ferro etc. are local. When environment light is stronger, color sensor still can be used to gather the set color of display panel picture, judge whether display panel exists display fault.
Accompanying drawing explanation
Fig. 1 is display unit failure detector structural representation in prior art;
Fig. 2 is the utility model display unit failure detector structural representation.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is further described. Following examples are for illustration of the utility model, but are not used for limiting scope of the present utility model.
Shown in Fig. 2, the utility model provide a kind of can the display unit of detection failure automatically, comprise display panel 1, be arranged on the color sensor 2 above display panel 1; Polaroid 5 also it is provided with between color sensor 2 and display panel; Polaroid 5 filters the light that environment light 3 enters color sensor 2 through display panel 1 reflection. Below to the utility model provide can automatically detection failure display unit expansion detailed description.
In the utility model, display panel 1 is preferably the display panel of outgoing elliptically polarized light. In order to reduce the reflectivity of display panel 1, directly reducing the intensity of the light being reflected into color sensor 2, panel surface is provided with the plated film reducing reflectivity.
In order to the accuracy of a progressive raising display unit breakdown judge, the light of polaroid 5 is parallel with the light direction of display panel 1 outgoing light 4 through direction. In order to avoid color sensor 2 to affect display, color sensor 2 and polaroid 5 are arranged on the corner of display panel 1. The utility model is applicable to the display failure testing of the display panel 1 that environment light 3 changes greatly, and display unit is preferably display device for mounting on vehicle.
The principle of work of the technical scheme that the utility model provides is as follows: such as, when display panel 1 shows red picture, the RGB three primary color components that color sensor 2 exports subtracts the RGB three primary color components of black removal picture respectively, and difference is exactly the three primary color components of the light that display panel 1 sends itself.If red color component is much larger than green color component in the three primary color components of this difference, and red color component is also much larger than blue color component, so that it may be redness picture with what judge that display panel 1 show, and display panel 1 shows trouble free; Otherwise, if red color component is not more than green color component in the three primary color components of this difference, and red color component is also not more than blue color component, so that it may to judge that display panel 1 shows fault. According to above method, it is possible to allow the green picture of display panel display or blue picture detect.
In the utility model, color sensor 2 has the product of volume production, its principle is theoretical according to three primary colors, shades of colour mixes by the three primary colors (red, green, blue) of different ratios, it has red turquoise three kinds of spectral filters, it is possible to select different spectral filters by reading three registers of color sensor 2. When a selected color filter, it only allows certain specific primary colors to pass through, and stops other primary colors to pass through. Such as, when selecting blue filter, in light to be collected, only blue composition can pass through, red and green not by, so just can obtain the light intensity of blue light, with reason, select other spectral filter, so that it may to obtain the light intensity of redness with green light. Color sensor 2 exports RGB tri-kinds of color components of object to be detected every time.
The utility model, by increasing by one layer of polaroid 5 before color sensor 2, carrys out the light that filtering environmental light 3 enters color sensor 2 after display panel 1 reflects. When environment light the last 3, when being also exactly the light intensity that the light intensity leaking the environment light 3 into color sensor 2 is greater than display panel 1 outgoing light 4, color sensor 2 still can be used to gather picture color to judge whether display panel 1 exists display fault. Owing to the outgoing light of display panel 1 own is elliptically polarized light, should fully consider type selecting and the polarization direction of the upper and lower polaroid 5 of display panel 1 itself when polaroid type selecting. Before color sensor 2, the maximum direction of the transmitance of polaroid 5 should be parallel with the largest light intensity direction of display panel 1 outgoing light 4, falls the polarized light of low ambient light 3 outgoing after reflection simultaneously. The utility model is while filtering reflected light, it is also possible to reduced the reflectivity of display panel 1 by plated film or other modes, directly reduces the intensity of the light being reflected into color sensor 2.
By above-described embodiment it will be seen that use provided by the utility model can the display unit of detection failure automatically, utilize the polarization characteristic of display unit luminescence, judge car-mounted display Display panel fault by the combination of polaroid and color sensor. The display failure testing being applicable to the display panel that environment light changes greatly, such as, be arranged on the car-mounted display panel that public transport, subway, high ferro etc. are local. When environment light is stronger, color sensor still can be used to gather the set color of display panel picture, judge whether display panel exists display fault.
Mode of more than implementing is only for illustration of the utility model, and is not limitation of the utility model, about the those of ordinary skill of technical field, when not departing from spirit and scope of the present utility model, it is also possible to make a variety of changes and modification. Therefore all equivalent technical schemes also belong to protection category of the present utility model.
Claims (6)
1. one kind can the display unit of detection failure automatically, it is characterised in that, comprise display panel, be arranged on the color sensor above display panel;
Polaroid also it is provided with between described color sensor and described display panel;
Described polaroid filters the light that environment light enters described color sensor through display panel reflection.
2. display unit according to claim 1, it is characterised in that, described display panel is the display panel of outgoing elliptically polarized light.
3. display unit according to claim 1, it is characterised in that, described panel surface is provided with the plated film reducing reflectivity.
4. display unit according to claim 1, it is characterised in that, the light of described polaroid is parallel with the light direction of display panel through direction.
5. display unit according to claim 1, it is characterised in that, described display unit is display device for mounting on vehicle.
6. display unit according to claim 1, it is characterised in that, described color sensor and described polaroid are arranged on the corner of described display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620076179.3U CN205318052U (en) | 2016-01-26 | 2016-01-26 | But display device of automated inspection trouble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620076179.3U CN205318052U (en) | 2016-01-26 | 2016-01-26 | But display device of automated inspection trouble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205318052U true CN205318052U (en) | 2016-06-15 |
Family
ID=56206743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620076179.3U Expired - Fee Related CN205318052U (en) | 2016-01-26 | 2016-01-26 | But display device of automated inspection trouble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205318052U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065238A (en) * | 2017-01-22 | 2017-08-18 | 京东方科技集团股份有限公司 | A kind of alignment film film surface detection means and method |
| CN110082630A (en) * | 2019-03-13 | 2019-08-02 | 国网山东省电力公司日照供电公司 | Power failure detection device |
| CN111354317A (en) * | 2018-12-20 | 2020-06-30 | 光远科技股份有限公司 | Display device and method for monitoring a display device |
-
2016
- 2016-01-26 CN CN201620076179.3U patent/CN205318052U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065238A (en) * | 2017-01-22 | 2017-08-18 | 京东方科技集团股份有限公司 | A kind of alignment film film surface detection means and method |
| CN107065238B (en) * | 2017-01-22 | 2020-07-03 | 京东方科技集团股份有限公司 | Alignment film surface detection device and method |
| CN111354317A (en) * | 2018-12-20 | 2020-06-30 | 光远科技股份有限公司 | Display device and method for monitoring a display device |
| CN111354317B (en) * | 2018-12-20 | 2022-12-13 | 光远科技股份有限公司 | Display device and method for monitoring a display device |
| CN110082630A (en) * | 2019-03-13 | 2019-08-02 | 国网山东省电力公司日照供电公司 | Power failure detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160615 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |