CN106125368A - The flicker degree detection device of a kind of display floater and detection method - Google Patents
The flicker degree detection device of a kind of display floater and detection method Download PDFInfo
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- CN106125368A CN106125368A CN201610740837.9A CN201610740837A CN106125368A CN 106125368 A CN106125368 A CN 106125368A CN 201610740837 A CN201610740837 A CN 201610740837A CN 106125368 A CN106125368 A CN 106125368A
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- display floater
- flicker degree
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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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- General Physics & Mathematics (AREA)
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Abstract
The invention provides the flicker degree detection device of a kind of display floater, described flicker degree detection device includes probe and is external in the beam condensing unit on described probe, described beam condensing unit is used for the output light collection in the certain area of described display floater to described probe, and then is detected the display brightness of described display floater by described probe.The present invention also provides for the flicker degree detection method of a kind of display floater.The detection device that the present invention provides is by an external beam condensing unit, with by the output light collection in the certain area of display floater to probe, increase the area that probe can detect, simultaneously, because the light converged is more, even if dark at picture, GTG is relatively low and input voltage signal relatively low in the case of, still can effectively detect the flicker degree of display floater.
Description
Technical field
The present invention relates to the technical field of display floater, particularly relate to a kind of display floater flicker degree detection device and
Detection method.
Background technology
During the driving of display panels, typically can use the mode of exchange driving stage sex reversal.Due at this
One mode introduces common electrode signal (VCOM), the switching of polarity inversion can occur driving voltage non complete symmetry
Phenomenon, this phenomenon can be brought the visible scintillation of human eye under fc-specific test FC picture, typically use flicker degree to describe this
Flicker.The size of flicker degree directly describes the degree of fine qualities of display panels, such as thin film transistor (TFT) (Thin Film
Transistor, TFT) leakage current is the strongest, frequently can lead to flicker degree the biggest.More importantly, when flicker degree is bigger, often
Mean that the centrosymmetry position of common electrode signal deviation polarity inversion is bigger, it means that display floater generation image retention
The risk of (Image Sticking, IS) becomes big.So, how to measure and the size of flicker degree under control characteristic test pictures,
It it is an important problem in display panels design and manufacture.
In existing technology, the method measuring flicker degree generally includes FMA method, JEITA method and VESA
Method.Wherein the AC compounent of FMA method brightness flop represents flicker degree than DC component, it usually needs use photosignal
The probe of conversion.In the most frequently used probe CA310, matching type is generally used to measure flicker degree.Refer to Fig. 1, when measuring, from
The light that LCDs 1 sends, only at ± 2.5 degree of (LED universal measurements probe (a diameter of Φ 10) (CA-PSU32/35)
With LED flicker measuring probe (a diameter of Φ 10) (CA-PS32/35): ± 5 degree) in the range of vertical with LCDs 1 light
It is directed to optical fiber by object lens 2.In this kind of method, need to meet the minimum pixel number in the detection ken, guarantee foot
Enough light energies enter into detecting devices, but, in the case of, shade of gray dark at picture is relatively low, the 15 of such as VA series LCD
GTG, when brightness is less than 1nits, the brightness that the test pattern of flicker degree is corresponding is lower, thus causes this equipment cannot detect sudden strain of a muscle
Bright degree.
Summary of the invention
The technical problem that present invention mainly solves is to provide flicker degree detection device and the detection method of a kind of display floater,
Can, GTG dark at picture relatively low in the case of, by increasing the flicker degree of detection area detection display floater.
For solving above-mentioned technical problem, the technical scheme that the present invention uses is: provide the flicker of a kind of display floater
Degree detection device, described flicker degree detection device includes probe and is external in the beam condensing unit on described probe, described optically focused
Device is for described probe and then right by described probe by the output light collection in the certain area of described display floater
The display brightness of described display floater detects.
Wherein, described beam condensing unit is removably external on described probe, to allow at described display floater
When display brightness is more than predetermined threshold, described beam condensing unit is taken off from described probe, and directly utilizes described probe to institute
The display brightness stating display floater detects.
Wherein, described beam condensing unit includes housing, the reflecting layer being formed at described case inside wall and concentration structure, its
Described in concentration structure be located in the inner side of described housing, described display floater output light through described concentration structure or/and institute
State reflecting layer to converge on probe.
Wherein, described flicker degree detection device farther includes processing equipment, and described processing equipment is according to described probe
Detected value calculates the flicker degree of described display floater.
Wherein, described processing equipment calculates described flicker degree by equation below:
(Vmax-Vmin)/((Vmax+Vmin)/2)
Wherein, Vmax is the detected value for representing maximum display brightness, and Vmin is for representing minimum display brightness
Detected value.
Wherein, described processing equipment is according to the detection to the display brightness in multiple regions of described display floater of the described probe
Value calculates the flicker degree in the plurality of region respectively, and wherein said multiple regions have a lap, and described processing equipment is entered
One step calculates the meansigma methods of the flicker degree in the plurality of region, and as the flicker degree of described lap.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provide the sudden strain of a muscle of a kind of display floater
Bright degree detection method, described flicker degree detection method includes:
Utilize the beam condensing unit external with probe by the output light collection in the certain area of display floater to described spy
On head；
Utilize described probe that the display brightness of described display floater is detected；
Detected value according to described probe calculates the flicker degree of described display floater.
Wherein, the beam condensing unit that described utilization is external with probe is by the output light collection in the certain area of display floater
Farther include before step on described probe:
Judge that whether the display brightness of described display floater is more than predetermined threshold；
If the display brightness of described display floater is less than described predetermined threshold value, then described beam condensing unit is external to described spy
On head, and the output light collection in the certain area of display floater is arrived by the beam condensing unit performing described utilization external with probe
Step on described probe；
If the display brightness of described display floater is more than described predetermined threshold value, then by described beam condensing unit from described probe
Take off, and directly perform the described step utilizing described probe that the display brightness of described display floater is detected.
Wherein, the step of the flicker degree that the described detected value according to described probe calculates described display floater includes:
According to described probe, the detected value of the display brightness in multiple regions of described display floater is calculated described many respectively
The flicker degree in individual region, wherein said multiple regions have a lap；
Calculate the meansigma methods of the flicker degree in the plurality of region, and as the flicker degree of described lap.
For solving above-mentioned technical problem, another technical solution used in the present invention is: provide the sudden strain of a muscle of a kind of display floater
Bright degree detection method, described flicker degree detection method includes:
Detecting the display brightness in multiple regions of described display floater, it is overlapping that wherein said multiple regions have one
Part；
According to described probe, the detected value of the display brightness in multiple regions of described display floater is calculated described many respectively
The flicker degree in individual region；
Calculate the meansigma methods of the flicker degree in the plurality of region, and as the flicker degree of described lap.
The invention has the beneficial effects as follows: be different from prior art, the detection device that the present invention provides is by an external optically focused
Device, by the output light collection in the certain area of display floater to probe, to increase the area that probe can detect,
Meanwhile because converge light more, even if dark at picture, GTG is relatively low and input voltage signal relatively low in the case of,
Still can effectively detect the flicker degree of display floater.
Accompanying drawing explanation
Fig. 1 is the principle schematic during flicker degree detection device detection of prior art；
Fig. 2 is the structural representation of flicker degree of the present invention detection device embodiment；
Fig. 3 is output light distribution schematic diagram during flicker degree of the present invention detection device embodiment multiple region of detection；
Fig. 4 is the schematic flow sheet of flicker degree detection method embodiment of the present invention；
Fig. 5 is the schematic flow sheet of flicker degree another embodiment of detection method of the present invention.
Detailed description of the invention
The present invention will be described in detail with embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 2, the present invention provides the flicker degree detection device 100 of a kind of display floater 200, is used for detecting display surface
The flicker degree of plate 200.Flicker degree detection device 100 includes popping one's head in 10, be external on probe 10 beam condensing unit 30 and processing
Equipment 50.
Beam condensing unit 30 is used for the output light collection in the certain area of display floater 200 to probe 10, and then
By probe 10, the display brightness of display floater 200 is detected.Beam condensing unit 30 is removably external on probe 10,
To allow when the display brightness of display floater 200 is more than predetermined threshold, beam condensing unit 30 is taken off from probe 10, and directly
Utilize probe 10 that the display brightness of display floater 200 is detected.Wherein, predetermined threshold be defined as detect device 100 detect
Time the minimum display brightness of virtual value that can export.
It is appreciated that removably can be but is not limited to use sleeve, screw to fix or the method such as glue bonding.
Beam condensing unit 30 includes housing 31, the reflecting layer 33 being formed at housing 31 medial wall and concentration structure 35, wherein
Concentration structure 35 is located in the inner side of housing 31, and display floater 200 exports light through concentration structure 35 or/and reflecting layer 33 is converged
On probe 10.
Housing 31 is made for opaque material, and opaque material can be but be not limited to opaque plastics, wooden, metal material
Deng.The shape of housing 31 can be but be not limited to hemispherical, cone etc..In the present embodiment, housing 31 is in cone.
Reflecting layer 33 has reflecting effect by forming one layer of reflecting material in the medial wall of housing 31 and being formed or install
Catoptric arrangement is formed, and wherein reflecting material is metal material, as the materials such as aluminum, magnesium, silver form metallic mirror surface reflecting layer 33；Reflection
Structure is optical reflection sheet, such as eyeglass.
Concentration structure 35 is held on the inner side of housing 31, and concentration structure 35 is condenser lens, and condenser lens meets below equation:
1/u+1/v=1/f,
Wherein, u is object distance, and v is image distance, and f is the focal length of lens, and so, the position of probe 10 is at light collection, permissible
Effectively increase display brightness and detection area.
It is appreciated that approximation meets the lens arrangement of above-mentioned formula and also may be used.
In the present embodiment, condenser lens is convex lens.
Processing equipment 50 calculates the flicker degree of display floater 200 for the detected value according to probe 10.
Concrete, processing equipment 50 is by equation below calculating flicker degree:
(Vmax-Vmin)/((Vmax+Vmin)/2)
Wherein, Vmax is the detected value for representing maximum display brightness, and Vmin is for representing minimum display brightness
Detected value.
In other embodiments, referring to Fig. 3, processing equipment 50 is according to the probe 10 multiple regions to display floater 200
The detected value of display brightness calculate the flicker degree in multiple region respectively, plurality of region has a lap, and process sets
The meansigma methods of standby 50 flicker degree calculating multiple regions further, and as the flicker degree of lap.
It is appreciated that lap is exactly 10 centers that should detect of popping one's head in, so, can effectively detect in this
The flicker degree of heart position, the such as central point of display floater 200.
Being different from prior art, the detection device 100 that the present invention provides is by an external beam condensing unit 30, with by display surface
Output light collection in the certain area of plate 200 to probe 10, increases the areas that probe 10 can detect, meanwhile, because of
For converge light more, even if dark at picture, GTG is relatively low and input voltage signal relatively low in the case of, the most permissible
Effectively detect the flicker degree of display floater 200.It addition, beam condensing unit 30 is to be installed on removably on probe 10,
It is easy to user, according to practical situation, beam condensing unit 30 is installed.Further, by detecting the display brightness meter in multiple regions
Calculate corresponding flicker degree, and using the meansigma methods of the flicker degree in multiple regions as the flicker degree of lap, by repetitive measurement,
Make overlapping region, i.e. the value of the flicker degree of certain point is the most accurate.
Referring to Fig. 4, the present invention also provides for the flicker degree detection method of a kind of display floater, flicker degree detection method bag
Include:
Step S101, utilizes and external beam condensing unit of popping one's head in is by the output light collection in the certain area of display floater
On probe.
In other embodiments, utilize and external beam condensing unit of popping one's head in is by the output light in the certain area of display floater
Line farther includes before converging to the step on probe:
Judge that whether the display brightness of display floater is more than predetermined threshold；
If the display brightness of display floater is less than predetermined threshold value, then beam condensing unit is external on probe, and performs utilization
The beam condensing unit external with probe is by the step on the output light collection in the certain area of display floater to probe；
If the display brightness of display floater is more than predetermined threshold value, then beam condensing unit is taken off from probe, and directly perform
Utilize the step that the display brightness of display floater is detected by probe.
Wherein, predetermined threshold is defined as the minimum display brightness of the virtual value that can export during detection.
Step S102, utilizes probe to detect the display brightness of display floater.
Step S103, calculates the flicker degree of display floater according to the detected value of probe.
Concrete, by equation below calculating flicker degree:
(Vmax-Vmin)/((Vmax+Vmin)/2)
Wherein, Vmax is the detected value for representing maximum display brightness, and Vmin is for representing minimum display brightness
Detected value.
In other embodiments, according to probe, the detected value of the display brightness in multiple regions of display floater is calculated respectively
The flicker degree in multiple regions, plurality of region has a lap；
Calculate the meansigma methods of the flicker degree in multiple region, and as the flicker degree of lap.
Being different from prior art, the detection method of the flicker degree that the present embodiment provides, by beam condensing unit by certain area
In light collection on probe, increasing while detection area because the light converged is more, even if dark at picture,
GTG is relatively low and input voltage signal relatively low in the case of, still can effectively detect the flicker degree of display floater.
Referring to Fig. 5, the present invention also provides for the flicker degree detection method of another kind of display floater, flicker degree detection method bag
Include:
Step S201, detects the display brightness in multiple regions of display floater, and plurality of region has a weight
Folded part.
Wherein, the output light in each region of display floater is to utilize the beam condensing unit external with probe to converge to probe
On.
In other embodiments, utilize and pop one's head in external beam condensing unit by output light collection to probe on step
Farther include before:
Judge that whether the display brightness of display floater is more than predetermined threshold；
If the display brightness of display floater is less than predetermined threshold value, then beam condensing unit is external on probe, and performs utilization
The beam condensing unit external with probe is by the step on the output light collection in a certain region of display floater to probe；
If the display brightness of display floater is more than predetermined threshold value, then beam condensing unit is taken off from probe, and directly perform
Utilize the step that the display brightness of display floater is detected by probe.
Wherein, predetermined threshold is defined as the minimum display brightness of the virtual value that can export during detection.
Step S202, calculates multiple district according to probe respectively to the detected value of the display brightness in multiple regions of display floater
The flicker degree in territory.
Wherein, each region is all by equation below calculating flicker degree:
(Vmax-Vmin)/((Vmax+Vmin)/2)
Wherein, Vmax is the detected value for representing maximum display brightness, and Vmin is for representing minimum display brightness
Detected value.
Step S203, calculates the meansigma methods of the flicker degree in multiple region, and as the flicker degree of lap.
Being different from prior art, the detection method of the flicker degree that the present embodiment provides, by detecting the display in multiple regions
The flicker degree that brightness calculation is corresponding, and using the meansigma methods of the flicker degree in multiple regions as the flicker degree of lap, so, lead to
Cross repetitive measurement so that overlapping region, i.e. the value of the flicker degree of certain point is the most accurate.
The foregoing is only embodiments of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally
Equivalent structure or equivalence flow process that description of the invention and accompanying drawing content are made convert, or are directly or indirectly used in what other were correlated with
Technical field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (10)
1. a display floater flicker degree detection device, it is characterised in that described flicker degree detection device include probe and
Being external in the beam condensing unit on described probe, described beam condensing unit is for by the output light in the certain area of described display floater
Line converges on described probe, and then is detected the display brightness of described display floater by described probe.
Flicker degree the most according to claim 1 detection device, it is characterised in that described beam condensing unit removably outside
Be connected on described probe, with allow described display floater display brightness more than predetermined threshold time, by described beam condensing unit from
Take off on described probe, and directly utilize described probe the display brightness of described display floater is detected.
Flicker degree the most according to claim 1 detection device, it is characterised in that described beam condensing unit includes housing, formation
In reflecting layer and the concentration structure of described case inside wall, wherein said concentration structure is located in the inner side of described housing, institute
State display floater output light through described concentration structure or/and described reflecting layer converges on probe.
Flicker degree the most according to claim 1 detection device, it is characterised in that described flicker degree detection device wraps further
Including processing equipment, described processing equipment calculates the flicker degree of described display floater according to the detected value of described probe.
Flicker degree the most according to claim 4 detection device, it is characterised in that described processing equipment passes through equation below meter
Calculate described flicker degree:
(Vmax-Vmin)/((Vmax+Vmin)/2)
Wherein, Vmax is the detected value for representing maximum display brightness, and Vmin is the detection for representing minimum display brightness
Value.
Flicker degree the most according to claim 4 detection device, it is characterised in that described processing equipment is right according to described probe
The detected value of the display brightness in multiple regions of described display floater calculates the flicker degree in the plurality of region respectively, wherein said
Multiple regions have a lap, and described processing equipment calculates the meansigma methods of the flicker degree in the plurality of region further, and
Flicker degree as described lap.
7. the flicker degree detection method of a display floater, it is characterised in that described flicker degree detection method includes:
Utilize the beam condensing unit external with probe by the output light collection in the certain area of display floater to described probe；
Utilize described probe that the display brightness of described display floater is detected；
Detected value according to described probe calculates the flicker degree of described display floater.
Flicker degree detection method the most according to claim 7, it is characterised in that the optically focused dress that described utilization is external with probe
Put and farther included before the step on the output light collection in the certain area of display floater to described probe:
Judge that whether the display brightness of described display floater is more than predetermined threshold；
If the display brightness of described display floater is less than described predetermined threshold value, then described beam condensing unit is external to described probe
On, and perform the described utilization beam condensing unit external with probe by the output light collection in the certain area of display floater to institute
State the step on probe；
If the display brightness of described display floater is more than described predetermined threshold value, then described beam condensing unit is taken from described probe
Under, and directly perform the described step utilizing described probe that the display brightness of described display floater is detected.
Flicker degree detection method the most according to claim 8, it is characterised in that the described detected value meter according to described probe
The step of the flicker degree calculating described display floater includes:
According to described probe, the detected value of the display brightness in multiple regions of described display floater is calculated the plurality of district respectively
The flicker degree in territory, wherein said multiple regions have a lap；
Calculate the meansigma methods of the flicker degree in the plurality of region, and as the flicker degree of described lap.
10. the flicker degree detection method of a display floater, it is characterised in that described flicker degree detection method includes:
Detecting the display brightness in multiple regions of described display floater, wherein said multiple regions have an overlapping portion
Point；
According to described probe, the detected value of the display brightness in multiple regions of described display floater is calculated the plurality of district respectively
The flicker degree in territory；
Calculate the meansigma methods of the flicker degree in the plurality of region, and as the flicker degree of described lap.
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| CN201610740837.9A CN106125368A (en) | 2016-08-26 | 2016-08-26 | The flicker degree detection device of a kind of display floater and detection method |
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| CN201610740837.9A CN106125368A (en) | 2016-08-26 | 2016-08-26 | The flicker degree detection device of a kind of display floater and detection method |
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| CN110536127A (en) * | 2019-08-12 | 2019-12-03 | 中山大学 | A kind of evaluation method and device of naked-eye stereoscopic display system flicker rate |
| CN110942738A (en) * | 2019-12-04 | 2020-03-31 | 惠州市华星光电技术有限公司 | Measurement device and measurement method for flicker value of display panel |
| CN111025698A (en) * | 2019-12-26 | 2020-04-17 | 惠州市华星光电技术有限公司 | Detection device and detection method for measuring flicker degree of display panel |
| CN111076812A (en) * | 2019-12-26 | 2020-04-28 | 惠州市华星光电技术有限公司 | Optical brightness measuring system and optical brightness measuring method |
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Application publication date: 20161116 |