CN106200049A - A kind of picture quality detection method for curved-surface display equipment - Google Patents
A kind of picture quality detection method for curved-surface display equipment Download PDFInfo
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- CN106200049A CN106200049A CN201610792518.2A CN201610792518A CN106200049A CN 106200049 A CN106200049 A CN 106200049A CN 201610792518 A CN201610792518 A CN 201610792518A CN 106200049 A CN106200049 A CN 106200049A
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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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Abstract
The invention discloses a kind of picture quality detection method for curved-surface display equipment, including: the display picture of described curved-surface display equipment is obtained from corner positions；Determine whether described curved-surface display equipment has the uneven and/or light leak of display according to the display picture obtained；Wherein, described corner positions is positioned at the angular field of view of described curved-surface display equipment, and the region that the projection that described corner positions is on the first plane is between the first centrage and the second centrage；Described first plane is the plane of four angle points compositions of described curved-surface display equipment；Described first centrage is the straight line at the described curved-surface display equipment centrage along its length projection place in described first plane, and the second centrage is the straight line at the described curved-surface display equipment centrage in the width direction projection place in described first plane.The technical scheme that the embodiment of the present invention provides, can detect display uneven (Mura) and the light leakage phenomena of curved-surface display equipment exactly.
Description
Technical field
The present embodiments relate to curved-surface display equipment technical field, particularly relate to a kind of picture for curved-surface display equipment
Quality detection method.
Background technology
At present, display device, such as liquid crystal display are shown to curved-surface display fast-developing by plane.Both knots
Structure is similar, and difference is the difference of profile.Such as, the structure of flat liquid crystal display device and curved surface liquid crystal display comprises liquid
LCD panel, backlight module, back cover and frame, backlight module is in order to provide light source, back cover and frame to display panels
In order to fixative LCD panel and backlight module, these structures in curved-surface display equipment are all specific curvature.
Seeing Fig. 1, in flat-panel display devices 11, liquid crystal distribution is very uniform, and light is straightline propagation (the arrow table in figure
Show light).Forming curved-surface display after flat panel bending, see Fig. 2, in curved-surface display equipment 12, liquid crystal distribution consistency degree occurs
Trickle change, radiation direction and light transmission rate change the most therewith.So, when liquid crystal panel bends, with plane
Display is compared, and image quality can be variant, is embodied in picture and there will be display uneven (Mura) and light leakage phenomena.
Accordingly, it would be desirable to Mura and light leakage phenomena to curved-surface display equipment detect.
Summary of the invention
The present invention provides a kind of picture quality detection method for curved-surface display equipment, to realize curved surface liquid crystal display
Picture detect, detect Mura and the light leakage phenomena of curved-surface display equipment.
The embodiment of the present invention provides a kind of picture quality detection method for curved-surface display equipment, including:
The display picture of described curved-surface display equipment is obtained from corner positions；
Determine whether described curved-surface display equipment has the uneven and/or light leak of display according to the display picture obtained；
Wherein, described corner positions is positioned at the angular field of view of described curved-surface display equipment, and described corner positions exists
The projection in first plane region between the first centrage and the second centrage；
Wherein, described first plane is the plane that four angle points of described curved-surface display equipment are constituted；Described first center
Line is the straight line at the described curved-surface display equipment centrage along its length projection place in described first plane, in second
Heart line is the straight line at the described curved-surface display equipment centrage in the width direction projection place in described first plane.
The present invention by obtaining the display picture of curved-surface display equipment from corner positions, and the display picture according to obtaining determines
Whether curved-surface display equipment has the uneven and/or light leak of display.Owing to the display floater of curved-surface display equipment bends, curved-surface display
The light penetration that panel sends is uneven, and light forms oblique fire, at least obtains curved-surface display equipment from corner positions
Display picture, the display picture of acquisition can preferably reflect curved-surface display equipment whether existing defects, and then according to obtaining
Display picture can detect that the display of curved-surface display equipment is uneven and/or light leak and light leak situation, can improve curved surface and show
Show the accuracy that equipment picture detects.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the light that prior art midplane display device sends；
Fig. 2 is the schematic diagram of the light that prior art mean camber display device sends.
Fig. 3 is the flow process signal of a kind of picture quality detection method for curved-surface display equipment that the embodiment of the present invention one provides
Figure；
Fig. 4 is the position view of a kind of display picture obtaining curved-surface display equipment that the embodiment of the present invention one provides；
Fig. 5 is the flow process signal of a kind of picture quality detection method for curved-surface display equipment that the embodiment of the present invention two provides
Figure；
Fig. 6-Fig. 8 is the display picture of the curved-surface display equipment obtained three corner positions respectively；
Fig. 9-Figure 11 is the display picture of the curved-surface display equipment obtained three upright positions respectively；
Figure 12-Figure 13 is the display picture of the curved-surface display equipment obtained at horizontal level respectively.
Detailed description of the invention
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention, rather than limitation of the invention.It also should be noted that, in order to just
Part related to the present invention is illustrate only rather than entire infrastructure in description, accompanying drawing.
Embodiment one
Fig. 3 is the flow process signal of a kind of picture quality detection method for curved-surface display equipment that the embodiment of the present invention one provides
Figure.The present embodiment is applicable to obtain the display picture of curved-surface display equipment, the image quality to curved-surface display equipment from diverse location
Carry out situation about detecting.Seeing Fig. 3, the method specifically includes following steps:
S110, from corner positions obtain described curved-surface display equipment display picture；
Wherein, described corner positions is positioned at the angular field of view of described curved-surface display equipment, and described corner positions exists
The projection in first plane region between the first centrage and the second centrage.Angular field of view at curved-surface display equipment
Inside can observe the whole picture of curved-surface display equipment.Described first plane is that four angle points of described curved-surface display equipment are constituted
Plane；Described first centrage is the throwing in described first plane of the described curved-surface display equipment centrage along its length
The straight line at shadow place, the second centrage is that described curved-surface display equipment centrage in the width direction is in described first plane
The straight line at projection place.Curved-surface display equipment in the present embodiment can include curved surface liquid crystal display and curved surface organic light emission two
Level tube display apparatus.
Specifically, seeing figure, 4, Fig. 4 is a kind of display picture obtaining curved-surface display equipment that the embodiment of the present invention provides
Position view.Four angle points of curved-surface display equipment 10 are respectively A, B, C and D, and four angle points constitute the first plane 20,
The plane at i.e. four the common places of angle point A, B, C and D is the first plane 20.Curved-surface display equipment 10 centrage along its length
The straight line at the projection place in the first plane 20 is the first centrage X, curved-surface display equipment 10 centrage in the width direction
Straight line position the second centrage Y at the projection place in the first plane 20.Exemplary in Fig. 4 show three corner positions,
It is respectively corner positions 101, corner positions 102 and corner positions 103.Can be from corner positions 101, corner positions 102 and corner
Position 103 obtains the display picture of curved-surface display equipment 10.Corner positions 101, corner positions 102 and corner positions 103 are
The projection in one plane 20 region between the first centrage X and the second centrage Y, i.e. position, portion 101, corner positions
102 and the corner positions 103 projection in the first plane 20 will not fall on the first centrage X and the second centrage Y.
Further, in the present embodiment, can be by photographic head from corner positions 101, corner positions 102 and corner positions
The 103 display pictures obtaining curved-surface display equipment 10.Such as curved-surface display equipment is put into the center of circuit orbit, track
One vertical fixed mount of upper placement, fixed mount is fixed with multiple photographic head.Fixed mount can slide on circuit orbit, by solid
The slip determining frame can obtain the display picture of curved-surface display equipment in each corner positions.
In said method, it is positioned at 0-from first nodal point to the angle in the direction of described corner positions Yu described first plane
Between 90 °, described first nodal point is that two cornerwise intersection points of described curved-surface display equipment are in described first plane
Subpoint.Such as first nodal point O is a to the angle of direction and first plane 20 of corner positions 101, and first nodal point O arrives
The angle of the direction of corner positions 102 and the first plane 20 is b, such as first nodal point O to the direction of corner positions 101 and the
The angle of one plane 20 is c.Angle a, b and c are between 0-90 °.
Preferably, from described first nodal point to the angle in the direction of described corner positions Yu described first plane be 30 °,
45 °, 60 ° or 90 °.
S120, according to obtain display picture determine described curved-surface display equipment whether have display uneven and/or light leak；
Wherein, the display picture of acquisition includes: 0% brightness picture, 10% brightness picture, 20% brightness picture, 30% bright
Degree picture, 50% brightness picture, 75% brightness picture, 100% brightness picture, color rank picture, red picture, green picture and indigo plant
At least one picture in color picture.
0% brightness picture is completely black picture, the display picture shown by i.e. when curved-surface display device brightness is zero.
100% brightness picture is complete white picture, i.e. shown when curved-surface display device brightness is maximum display picture.
Concrete, determine whether described curved-surface display equipment has display uneven and/or leakage according to the display picture obtained
Light, including:
The display picture of acquisition is compared with standard picture.
The various pictures of the standard curved-surface display equipment without Mura and light leak can be obtained in advance as standard picture.Then
The display picture of acquisition is compared with standard picture.Wherein, the display picture compared and standard picture should be from same
The picture of the curved-surface display equipment of one position acquisition.Specifically, after getting display picture, the display picture of acquisition is determined
Brightness and colourity.Then brightness and the colourity of the display brightness of picture obtained and colourity with standard picture are compared.
Specifically can be determined the brightness showing picture and the colourity of acquisition by luminance meter and color analysis instrument, carry out qualitative assessment curved surface and show
Show Mura and the difference degree of light leak of equipment picture entirety.
Determine whether described curved-surface display equipment has the uneven and/or light leak of display according to comparative result.
Brightness and the colourity of the display brightness of picture and colourity with standard picture are compared, in the brightness showing picture
When the brightness value of value and standard picture differs by more than luminance threshold, it may be determined that curved-surface display equipment has leakage problem.In display
When the chromatic value of picture and the chromatic value of standard picture differ by more than Chroma threshold, it may be determined that curved-surface display equipment has display not
Uniformity problem.
The technical scheme that the present embodiment provides, owing to the display floater of curved-surface display equipment bends, curved face display panel is sent out
The light penetration gone out is uneven, and light forms oblique fire, obtains the display picture of curved-surface display equipment from corner positions, obtains
The display picture taken can preferably reflect curved-surface display equipment whether existing defects, and then permissible according to the display picture obtained
Detect that the display of curved-surface display equipment is uneven and/or light leak and light leak situation, the inspection of curved-surface display equipment picture can be improved
The accuracy surveyed.
Embodiment two
Fig. 5 is the flow process signal of a kind of picture quality detection method for curved-surface display equipment that the embodiment of the present invention two provides
Figure.The present embodiment is to be optimized on the basis of above-described embodiment one, sees Fig. 5, the detection method that the present embodiment provides
Including:
S210, from corner positions obtain described curved-surface display equipment display picture.
S220, from horizontal level obtain described curved-surface display equipment display picture.
Wherein, described horizontal level is positioned at the angular field of view of described curved-surface display equipment, and described horizontal level exists
The projection of described first plane is positioned on described first centrage.
Further, described first nodal point be 30 ° to the direction of described horizontal level and the angle of described first plane,
45 °, 60 ° or 90 °.
With continued reference to Fig. 4, showing a horizontal level 104 in Fig. 4, horizontal level 104 is positioned at curved-surface display equipment 10
Angular field of view in, horizontal level 104 sets at curved-surface display, and the projection of 10 is positioned on the first centrage X.
First nodal point O is d to the angle of direction and first plane 20 of horizontal level 104, angle d be positioned at 0-90 ° it
Between, it is preferable that angle d can be 30 °, 45 °, 60 ° or 90 °.
S230, from upright position obtain described curved-surface display equipment display picture.
Wherein, described upright position is positioned at the angular field of view of described curved-surface display equipment, and described upright position exists
The projection of described first plane is positioned on described second centrage.
Further, described first nodal point be 30 ° to the direction of described upright position and the angle of described first plane,
45 °, 60 ° or 90 °.
With continued reference to Fig. 4, showing a upright position 105 in Fig. 4, upright position 105 is positioned at curved-surface display equipment 10
Angular field of view in, horizontal level 105 is positioned on the first centrage X in the projection of the first plane 20.
First nodal point O is e to the angle of direction and first plane 20 of upright position 105, angle e be positioned at 0-90 ° it
Between.Preferably, angle e can be 30 °, 45 °, 60 ° or 90 °.
S240, according to obtain display picture determine described curved-surface display equipment whether have display uneven and/or light leak.
Exemplarily, seeing Fig. 6-Fig. 8, Fig. 6-Fig. 8 is the curved-surface display equipment obtained three corner positions respectively
Display picture.Display picture in Fig. 6 is 100% brightness picture, obtain Fig. 6 the angle of corner positions and the first plane be
60°；Display picture in Fig. 7 is 0% brightness picture, obtains the corner positions showing picture in Fig. 7 and the folder of the first plane
Angle is 45 °；Display picture in Fig. 8 is 100% brightness picture, obtains the corner positions showing picture in Fig. 8 flat with first
The angle in face is 30 °.Display picture in Fig. 6 has Mura phenomenon, and the display picture in Fig. 7 has light leakage phenomena at edge, in Fig. 8
Display picture normal.
See the display picture that Fig. 9-Figure 11, Fig. 9-Figure 11 is the curved-surface display equipment obtained three upright positions respectively
Face.Display picture in Fig. 9 is 100% brightness picture, obtain Fig. 9 the angle of upright position and the first plane be 60 °；Figure
Display picture in 10 is 100% brightness picture, obtains the upright position showing picture in Figure 10 and the angle of the first plane
It it is 45 °；Display picture in Figure 11 is 100% brightness picture, obtains the upright position showing picture in Figure 11 flat with first
The angle in face is 30 °.Display picture in Fig. 9 has Mura phenomenon, and the display picture in Figure 11 has light leakage phenomena, Figure 10 at edge
In display picture normal.
See the display picture that Figure 12 and 13, Figure 12-Figure 13 are the curved-surface display equipment obtained at horizontal level respectively.Figure
Display picture in 12 is 0% brightness picture, obtain Figure 12 horizontal level and the angle of the first plane be 90 °；In Figure 13
Display picture be 100% brightness picture, obtain the horizontal level of display picture in Figure 13 and the angle of the first plane be
90°；Display picture in Figure 12 has Mura phenomenon, and the display picture in Figure 13 is normal.
The technical scheme that the present embodiment provides, obtains described curved surface and shows from corner positions, horizontal level and upright position
Show the display picture of equipment, according to obtain display picture determine described curved-surface display equipment whether have display uneven and/or
Light leak.From the display picture of each position acquisition curved-surface display equipment in the angular field of view of curved-surface display equipment, can obtain relatively
Comprehensively show picture.Can effectively and comprehensively detect the image quality characteristic of curved-surface display equipment.Song can be detected accurately
The defect of face display device.
Note, above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The invention is not restricted to specific embodiment described here, can carry out for a person skilled in the art various obvious change,
Readjust and substitute without departing from protection scope of the present invention.Therefore, although by above example, the present invention is carried out
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
Other Equivalent embodiments more can be included, and the scope of the present invention is determined by scope of the appended claims.
Claims (10)
1. the picture quality detection method for curved-surface display equipment, it is characterised in that including:
The display picture of described curved-surface display equipment is obtained from corner positions；
Determine whether described curved-surface display equipment has the uneven and/or light leak of display according to the display picture obtained；
Wherein, described corner positions is positioned at the angular field of view of described curved-surface display equipment, and described corner positions is first
The projection in plane region between the first centrage and the second centrage；Described first plane is that described curved-surface display sets
The plane that four standby angle points are constituted, described first centrage is that described curved-surface display equipment centrage along its length is in institute
Stating the straight line projecting place in the first plane, described second centrage is described curved-surface display equipment center in the width direction
The straight line at line projection place in described first plane.
Method the most according to claim 1, it is characterised in that from first nodal point to the direction of described corner positions and institute
State the angle of the first plane between 0-90 °；
Wherein, described first nodal point is that two cornerwise intersection points of described curved-surface display equipment are in described first plane
Subpoint.
Method the most according to claim 2, it is characterised in that from described first nodal point to the direction of described corner positions
It is 30 °, 45 °, 60 ° or 90 ° with the angle of described first plane.
Method the most according to claim 2, it is characterised in that determine described curved surface according to the display picture obtained described
Whether display device has display uneven and/or before light leak, also includes:
The display picture of described curved-surface display equipment is obtained from horizontal level；
Wherein, described horizontal level is positioned at the angular field of view of described curved-surface display equipment, and described horizontal level is described
The projection of the first plane is positioned on described first centrage.
Method the most according to claim 4, it is characterised in that the direction of described first nodal point to described horizontal level with
The angle of described first plane is 30 °, 45 °, 60 ° or 90 °.
Method the most according to claim 2, it is characterised in that determine described curved surface according to the display picture obtained described
Whether display device has display uneven and/or before light leak, also includes:
The display picture of described curved-surface display equipment is obtained from upright position；
Wherein, described upright position is positioned at the angular field of view of described curved-surface display equipment, and described upright position is described
The projection of the first plane is positioned on described second centrage.
Method the most according to claim 2, it is characterised in that the direction of described first nodal point to described upright position with
The angle of described first plane is 30 °, 45 °, 60 ° or 90 °.
Method the most according to claim 1, it is characterised in that obtain the display of described curved-surface display equipment from corner positions
Picture, including:
Obtained the display picture of described curved-surface display equipment from described corner positions by shooting part.
Method the most according to claim 1, it is characterised in that the display picture according to obtaining determines that described curved-surface display sets
Whether standby have the uneven and/or light leak of display, including:
The display picture of acquisition is compared with standard picture；
Determine whether described curved-surface display equipment has the uneven and/or light leak of display according to comparative result.
10. according to the method described in any one of claim 1-9, it is characterised in that described display picture includes:
0% brightness picture, 10% brightness picture, 20% brightness picture, 30% brightness picture, 50% brightness picture, 75% brightness
At least one picture in picture, 100% brightness picture, color rank picture, red picture, green picture and blue picture.
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| CN107086021A (en) * | 2017-04-20 | 2017-08-22 | 京东方科技集团股份有限公司 | The mura compensation systems and method of display screen |
| CN107101129A (en) * | 2017-05-12 | 2017-08-29 | 合肥京东方显示光源有限公司 | Compensation method and its system, colour atla, backlight to sample backlight light-leaking area |
| CN107731185A (en) * | 2017-10-26 | 2018-02-23 | 惠科股份有限公司 | The bearing calibration of curved face display panel and its system |
| CN108803097A (en) * | 2018-06-28 | 2018-11-13 | 深圳市华星光电技术有限公司 | The detection method and detection device of pixel dark-state light leakage |
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