CN109729349B - Naked eye screen test system and test method thereof - Google Patents
Naked eye screen test system and test method thereof Download PDFInfo
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- CN109729349B CN109729349B CN201910179800.7A CN201910179800A CN109729349B CN 109729349 B CN109729349 B CN 109729349B CN 201910179800 A CN201910179800 A CN 201910179800A CN 109729349 B CN109729349 B CN 109729349B
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Abstract
The invention relates to a naked eye screen test system and a test method thereof, wherein the test system comprises: a platform and a probe end; the platform is provided with at least one display screen, the detection end is provided with a plurality of brightness meters at intervals, and any two brightness meters form a group; the brightness meters can measure the brightness or/and the chromaticity of the corresponding viewpoint on the display screen, and the crosstalk and the optimal viewpoint position of the display screen are calculated and analyzed through the multiple brightness meters.
Description
Technical Field
The invention relates to a test system, in particular to a naked eye screen test system and a test method thereof.
Background
Naked-eye 3D is a three-dimensional graphic presentation method that does not require glasses, that is, three-dimensional graphics are displayed using a plurality of planar images having parallax. Compared with a polarization type or active shutter type stereoscopic display technology of wearing glasses, the naked eye 3D technology avoids the burden and inconvenience brought to a user by wearing the glasses. The naked-eye 3D also has a multi-view display mode, such as a nine-view naked-eye display mode of philips, providing additional motion parallax perception for stereoscopic images. Due to different display modes, the currently applied naked-eye 3D display has many problems, such as large cross-talk between views in space. In addition, the optimal observation position is relatively limited, which is also a problem faced by the existing naked eye 3D technology, and especially for two viewpoints, the left view and the right view are easy to be reversed. At present, the mainstream naked-eye 3D technical means include slit type liquid crystal gratings, lenticular lenses and the like.
The method has the advantages that parameters such as crosstalk, optimal viewpoint position and the like of the naked eye 3D display screen are very important to evaluate, and the method can be used for guiding a user how to better utilize equipment and can also provide reference for improvement of the equipment. The test of bore hole 3D display screen needs to utilize the luminance meter to measure the luminance distribution of each view under each visual angle, and traditional method utilizes the form of manual rotatory screen to measure, has very big measuring error, wastes time and energy simultaneously.
Disclosure of Invention
The invention overcomes the defects of the prior art and provides a naked eye screen testing system and a testing method thereof.
In order to achieve the purpose, the invention adopts a technical scheme that: a naked eye screen testing system comprising: a platform and a probe end; the platform is provided with at least one display screen, the detection end is provided with a plurality of brightness meters at intervals, and any two brightness meters form a group; the brightness meters can measure the brightness or/and the chromaticity of the corresponding viewpoint on the display screen, and the crosstalk and the optimal viewpoint position of the display screen are calculated and analyzed through the multiple brightness meters.
In a preferred embodiment of the present invention, the probe end has a planar structure or an arc-shaped structure.
In a preferred embodiment of the present invention, a center point of the detecting end coincides with a center point of the display screen.
In a preferred embodiment of the present invention, the luminance meter is capable of adjusting an angle.
In a preferred embodiment of the present invention, the distance between the display screen and the detection end is 1-7 m.
In a preferred embodiment of the present invention, the display screen is a nine-viewpoint lenticular lens type or a two-viewpoint liquid crystal lens type.
In order to achieve the purpose, the invention adopts another technical scheme as follows: a test method of a naked eye screen test system comprises the following steps:
(1) adjusting the center point of the detection end to coincide with the center point of the display screen, and fixing the distance between the detection end and the display screen to be 1 meter;
(2) the set of brightness meters can measure the brightness or/and the chromaticity of a corresponding viewpoint on the display screen;
(3) respectively adjusting different groups of brightness meters at the detection end to measure, then obtaining white chromaticity values of the display screen at different viewpoints, and calculating a white chromaticity difference;
(4) adjusting the distance between the detection end and the display screen to move between 1-7 meters, adjusting different groups of brightness meters of the detection end again to measure the brightness or/and the chromaticity of different viewpoints on the display screen, obtaining white chromaticity values of the different viewpoints of the display screen, and calculating a white chromaticity difference;
(5) when the brightness meter measures brightness and chromaticity, different groups of brightness meters are adjusted to measure, and the optimal viewing angle is determined by comparing the brightness distribution of each viewpoint along with the view angle
In a preferred embodiment of the present invention, the viewing angle in step (5) ranges from-60 degrees to 60 degrees.
In a preferred embodiment of the present invention, a bracket is disposed at the bottom of the probing end.
The invention solves the defects in the background technology, and has the following beneficial effects:
(1) through the distance between adjustment detection end height or detection end and the display screen, the distance between detection end and the display screen is set for according to the display screen size decision, and the display screen size is big more, and the distance adjustment range between detection end and the display screen is big more for detection end intermediate point and display screen central point are in same horizontal plane, improve luminance meter measuring accuracy.
(2) And adjusting different groups of brightness meters at the detection end to measure, then obtaining white chromaticity values of the display screen at different viewpoints, and calculating a white chromaticity difference.
(3) And the crosstalk of the viewpoint of the display screen along with the visual angle distribution is analyzed, so that the optimal viewing position can be more accurately tested.
(4) The support is arranged at the bottom of the detection end, the anti-shaking device is arranged on the support, and the anti-shaking device can have an anti-shaking effect in the luminance meter measuring process, so that the testing effect is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic partial structure view of a preferred embodiment of the present invention;
FIG. 2 is an enlarged partial view of a preferred embodiment of the present invention;
in the figure:
1. the device comprises a detection end, 2, a support, 3, an anti-shaking device, 4, a brightness meter, 5, a display screen, 6 and a base.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings and examples, which are simplified schematic drawings and illustrate only the basic structure of the invention in a schematic manner, and thus show only the constituents relevant to the invention.
As shown in fig. 1 and 2, a naked eye screen test system includes: a platform and a probe end; the platform is provided with at least one display screen, the detection end is provided with a plurality of brightness meters at intervals, and any two brightness meters form a group;
the brightness meters can measure the brightness or/and the chromaticity of the corresponding viewpoint on the display screen, and the crosstalk and the optimal viewpoint position of the display screen are calculated and analyzed through the multiple brightness meters.
The detection end is of a plane structure; optionally, the detection end is of an arc-shaped surface structure.
The central point of the detection end coincides with the central point of the display screen, the distance between the detection end and the display screen is set according to the size of the display screen by adjusting the height of the detection end or the distance between the detection end and the display screen, the larger the size of the display screen is, the larger the adjustment range of the distance between the detection end and the display screen is, so that the middle point of the detection end and the central point of the display screen are in the same horizontal plane, and the test precision of the brightness meter is improved.
The luminance meter can adjust the angle, and the distance between the display screen and the detection end is 1-5 meters.
In a preferred embodiment of the present invention, the display screen is of a nine-viewpoint lenticular type;
optionally, the display screen is of a two-view liquid crystal lens type.
In order to achieve the purpose, the invention adopts another technical scheme as follows: a test method of a naked eye screen test system comprises the following steps:
(1) adjusting the center point of the detection end to coincide with the center point of the display screen, and fixing the distance between the detection end and the display screen to be 1 meter;
(2) the set of brightness meters can measure the brightness or/and the chromaticity of a corresponding viewpoint on the display screen;
(3) respectively adjusting different groups of brightness meters at the detection end to measure, then obtaining white chromaticity values of the display screen at different viewpoints, and calculating a white chromaticity difference;
(4) adjusting the distance between the detection end and the display screen to move between 1-7 meters, adjusting different groups of brightness meters of the detection end again to measure the brightness or/and the chromaticity of different viewpoints on the display screen, obtaining white chromaticity values of the different viewpoints of the display screen, and calculating a white chromaticity difference;
(5) when the brightness and the chromaticity are measured by the brightness meter, different groups of brightness meters are adjusted to measure, and the optimal viewing angle is determined by comparing the brightness distribution of each viewpoint along with the view angle.
In the step (5), the range of the visual angle is-60 degrees to 60 degrees, different groups of brightness meters at the detection end are adjusted to measure, then white chromaticity values of the display screen at different viewpoints are obtained, white chromaticity difference is calculated, crosstalk of the viewpoint of the display screen along with the distribution of the visual angle is analyzed, and the optimal viewing position can be tested more accurately;
the 3D crosstalk formula for each viewpoint distributed with the viewing angle is as follows:
n＝number of views
the average crosstalk equation is as follows:
the minimum value of crosstalk is larger than 1, the direction of the maximum brightness of each viewpoint corresponds to the angle of the minimum crosstalk, and the average value of the three-dimensional crosstalk in the vicinity of 0 degree is 286.36%.
The deviation of the white field chromaticity was less than 0.05 over the measured range of-60 degrees to 60 degrees.
The support is arranged at the bottom of the detection end, the anti-shaking device is arranged on the support, and the anti-shaking device can have an anti-shaking effect in the luminance meter measuring process, so that the testing effect is improved.
In light of the foregoing description of the preferred embodiment of the present invention, it is to be understood that various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A test method of a naked eye screen test system is characterized by comprising the following steps: the method comprises the following steps:
(1) adjusting the central point of the detection end and the central point of the display screen to be in the same horizontal plane, and fixing the distance between the detection end and the display screen to be 1 m;
(2) the set of brightness meters can measure the brightness or/and the chromaticity of a corresponding viewpoint on the display screen;
(3) respectively adjusting different groups of brightness meters at the detection end to measure, then obtaining white chromaticity values of the display screen at different viewpoints, and calculating a white chromaticity difference;
(4) adjusting the distance between the detection end and the display screen to move between 1-7 meters, adjusting different groups of brightness meters of the detection end again to measure the brightness or/and the chromaticity of different viewpoints on the display screen, obtaining white chromaticity values of the different viewpoints of the display screen, and calculating a white chromaticity difference;
(5) when the brightness and chromaticity are measured by the brightness meter, different groups of brightness meters are adjusted to measure, and the optimal viewing angle is determined by comparing the brightness distribution of each viewpoint along with the view angle;
the range of the viewing angle in the step (5) is-60 degrees to 60 degrees.
2. The testing method of the open hole testing system of claim 1, characterized in that: the bottom of the detection end is provided with a support.
3. The naked eye screen testing system of claim 1, comprising: a platform and a probe end; it is characterized in that the preparation method is characterized in that,
the platform is provided with at least one display screen, the detection end is provided with a plurality of brightness meters at intervals, and any two brightness meters form a group;
the luminance meters can measure the luminance or/and the chrominance of the corresponding viewpoints on the display screen, the white chrominance values of the display screen at different viewpoints are obtained through the luminance meters, the white chrominance difference is calculated, and the crosstalk and the optimal viewpoint position of the viewpoints of the display screen along with the visual angle distribution are calculated and analyzed.
4. The naked eye screen test system of claim 3, wherein: the detection end is of a plane structure or an arc-shaped surface structure.
5. The naked eye screen test system of claim 4, wherein: the luminance meter can adjust the angle.
6. The naked eye screen test system of claim 3, wherein: the distance between the display screen and the detection end is 1-7 meters.
7. The naked eye screen test system of claim 6, wherein: the display screen is of a nine-viewpoint cylindrical lens type or a two-viewpoint liquid crystal lens type.
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| CN103414912B (en) * | 2013-07-31 | 2016-03-02 | 京东方科技集团股份有限公司 | A kind of method and device evaluating bore hole stereo display crosstalk |
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