CN209459870U - Luminance test device applied to display screen - Google Patents
Luminance test device applied to display screen Download PDFInfo
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- CN209459870U CN209459870U CN201920230093.5U CN201920230093U CN209459870U CN 209459870 U CN209459870 U CN 209459870U CN 201920230093 U CN201920230093 U CN 201920230093U CN 209459870 U CN209459870 U CN 209459870U
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- dark place
- wall
- display screen
- loading
- test device
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Abstract
The utility model discloses the luminance test device applied to display screen, including dark place cabinet and survey light unit, dark place cabinet includes that placements for placement display is faced the wall and meditated and one is faced the wall and meditated for loading the loading of survey light unit, the bottom surface of dark place cabinet is equipped with the sinking table top for being located at and loading one end of facing the wall and meditating, and the table top that sinks is equipped with horizontally disposed and faces the wall and meditates parallel sliding rail with loading, and surveying light unit includes photometer, the pedestal being slideably positioned on sliding rail and the elevating mechanism between photometer and pedestal.The photometer of the utility model have vertically to and horizontal direction displacement-adjustable, be able to achieve and detection adjusted to the arbitrary point of display screen, and the design of sinking table top ensures that measurement data is comprehensive without light dead angle is surveyed.The design of dark place cabinet ensures the photophobism of dark place detection, and no veiling glare influences, it is ensured that measuring accuracy.Whole design is ingenious, easy to implement and popularization and application.
Description
Technical field
The utility model relates to a kind of photometry apparatus, more particularly to the dark place operation luminance test applied to display screen fills
It sets, belongs to the technical field of luminance test device.
Background technique
Brightness of display screen tests common imaging type luminance meter and shading cartridge type luminance meter；Imaging type luminance meter is exactly for we
Common color luminance meter and color brightness photometer.It is frequently used in the luminance test of LED display, it can only test LED display
The brightness value of smaller area.Using the pixel grey scale measuring system of CCD；Cardinal principle is the figure using CCD acquisition LED display
Picture, then image is handled with image processing techniques, extract the gray value of each pixel of LED display.To LED out
The relatively bright angle value of each pixel of display screen uses the luminance meter of CCD technology.LED display ash data are acquired using CCD, it
The defect that two kinds of front luminance meter is unable to measure large area intensity source is improved, real-time is good, can obtain and contain much information, and can be obtained
Each pixel of LED display is imaged on the gray value on CCD.But this gray value cannot be reciprocity with intrinsic brilliance value, even
Lack stringent linear relationship with brightness value.
Traditional airbome liquid crystal display optical characteristic measurement mainly uses artificial point-to-point mode, divides in measurement process
The relative position of light radiation luminance meter, analog light source and airbome liquid crystal display is controlled by people.In addition, due to optics
Minimum brightness measurement in characteristic needs to carry out under dark situation, at no independent darkroom, generally first with opaque tilt
Airbome liquid crystal display and measuring device are covered simultaneously, tilt does not have fulcrum support, is easy to cover airborne liquid in measurement process
Crystal display display surface causes measurement data inaccurate.
Utility model content
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, needs artificial point pair for traditional luminance test
Point and darkroom operation lead to the problem of measurement data inaccuracy, propose the luminance test device for being applied to display screen.
In order to achieve the above object, the technology employed by the present utility model is
Applied to the luminance test device of display screen,
Including dark place cabinet and it is located at the intracorporal survey light unit of dark place case, the dark place cabinet includes two opposite pivots
Lid is closed and is faced the wall and meditated, one of them faces the wall and meditates for the placement for placement display, another is for loading the loading surface for surveying light unit
Wall,
The bottom surface of the dark place cabinet, which is equipped with, is located at the sinking table top for loading one end of facing the wall and meditating, and the lower heavy platform
Face is equipped with horizontally disposed and loads parallel sliding rail of facing the wall and meditating with described,
The survey light unit include photometer, the pedestal being slideably positioned on the sliding rail and be located at the photometer with
Elevating mechanism between the pedestal.
Preferably, the elevating mechanism is lifting cylinder or hinged crane.
Preferably, equipped with for driving the horizontal drive source of the pedestal horizontal direction displacement and for driving in the pedestal
Move the perpendicular drive source of the elevating mechanism lifting.
Preferably, the dark place cabinet is hexahedron dark place case.
Preferably, the bottom of the dark place cabinet is equipped with mobile bracket.
The beneficial effects of the utility model are mainly reflected in:
1. photometer have vertically to and horizontal direction displacement-adjustable, be able to achieve and detection adjusted to the arbitrary point of display screen,
And the design of sinking table top ensures that measurement data is comprehensive without light dead angle is surveyed.
2. the design of dark place cabinet ensures the photophobism of dark place detection, no veiling glare influences, it is ensured that measuring accuracy.
3. whole design is ingenious, easy to implement and popularization and application.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the luminance test device that the utility model is applied to display screen.
Specific embodiment
The utility model provides the luminance test device for being applied to display screen.Below in conjunction with attached drawing to the utility model technology
Scheme is described in detail, so that it is more readily understood and grasps.
Applied to the luminance test device of display screen, as shown in Figure 1, including dark place cabinet 1 and in dark place cabinet 1
Light unit 2 is surveyed, dark place cabinet 1 includes that two opposite pivot cover conjunctions are faced the wall and meditated, one of them is the placement for placement display
Face the wall and meditate 3, another is to survey the loading of the displacement of light unit 2 for adjusting and face the wall and meditate 4.
It specifically describes, 3 can carry out display placement by opening to place to face the wall and meditate and move away from, and load and face the wall and meditate 4 on the one hand
Light unit 2 is surveyed for placing in dark place cabinet 1, on the other hand for manually adjusting displacement under manual mode.Placement faces the wall and meditates 3
Facing the wall and meditating with loading 4 can be pivot matching type cylinder door.
It should be noted that dark place cabinet 1 in exist for display be powered and communicate cable design, and cable be across
Dark place cabinet 1, and the matching hole between cable and box body wall has shading design, it is ensured that dark place cabinet 1 under detecting state
It is interior to be protected from light closed state to be complete.
In this case, the bottom surface of dark place cabinet 1 is equipped with the sinking table top 5 for being located at and loading 4 one end of facing the wall and meditating, and the table top that sinks
5 are equipped with horizontally disposed and face the wall and meditate 4 parallel sliding rails 6 with loading.
Survey light unit 2 include photometer 7, the pedestal 8 that is slideably positioned on sliding rail 6 and be located at photometer 7 and pedestal 8 it
Between elevating mechanism 9.
It specifically describes, is displaced by the sliding and lifting of pedestal 8 and elevating mechanism 9, is adjustable photometer 7 and display
Relative measurement point between display screen, so that the relative position met for display screen arbitrary point adjusts, and sinking table top 5 is set
Meter can ensure that there is no dead angle is adjusted, and meet the needs of full frame sampling site.
Elevating mechanism 9 in this case can be lifting cylinder or hinged crane.Certainly, other are able to achieve 7 liters of photometer
The structure that demotion is moved is also within the protection scope of this case.
In preferred embodiment, equipped with the horizontal drive source for driving pedestal horizontal direction to be displaced and for driving in pedestal 8
The perpendicular drive source that elevating mechanism 9 is gone up and down.
It specifically describes, the automatic driving to photometer 7 can be realized by setting automatic driving mechanism, meet automatic complete
Shield the demand of scanning.
It further illustrates, there are stepper motor in pedestal 8, the driving end of stepper motor rubs with 6 phase of sliding rail to be coupled, and is led to
That crosses stepper motor rotates in the forward direction or reversely rotates horizontal direction shift reciprocately of the driving pedestal 8 on sliding rail 6, and elevating mechanism 9
For lifting cylinder or the elevating screw being driven by motor, to be able to achieve automatic lifting.
In an optimum embodiment, control is programmed to the displacement of photometer 7 using controller, so that photometer 7
Full screen scanning is carried out to the display screen of display, certainly, in this utilization, display has fixed displacement.
Dark place cabinet 1 in this case is hexahedron dark place case, and compound with regular structure is easily fabricated.And the bottom of dark place cabinet 1 is set
There is mobile bracket 10, which is convenient for the delivery of luminance test device.
By above description it can be found that the utility model is applied to the luminance test device of display screen, photometer has
Vertically to and horizontal direction displacement-adjustable, be able to achieve and detection adjusted to the arbitrary point of display screen, and the design of sinking table top ensures
Without light dead angle is surveyed, measurement data is comprehensive.The design of dark place cabinet ensures the photophobism of dark place detection, and no veiling glare influences, it is ensured that
Measuring accuracy.Whole design is ingenious, easy to implement and popularization and application.
The technical solution of the utility model is fully described above, it should be noted that the tool of the utility model
Body embodiment is simultaneously not limited by the description set out above, and those skilled in the art exist according to the Spirit Essence of the utility model
All technical solutions that structure, method or function etc. are formed using equivalents or equivalent transformation, all fall within this reality
Within novel protection scope.
Claims (5)
1. being applied to the luminance test device of display screen, it is characterised in that:
Including dark place cabinet and it is located at the intracorporal survey light unit of dark place case, the dark place cabinet includes that two opposite pivot covers are closed
It faces the wall and meditates, one of them faces the wall and meditates for the placement for placement display, another is to face the wall and meditate for loading the loading of survey light unit,
The bottom surface of the dark place cabinet, which is equipped with, is located at the sinking table top for loading one end of facing the wall and meditating, and on the sinking table top
Equipped with horizontally disposed and face the wall and meditate parallel sliding rail with the loading,
The survey light unit include photometer, the pedestal being slideably positioned on the sliding rail and be located at the photometer with it is described
Elevating mechanism between pedestal.
2. being applied to the luminance test device of display screen according to claim 1, it is characterised in that: the elevating mechanism is to rise
Sending down abnormally ascending cylinder or hinged crane.
3. being applied to the luminance test device of display screen according to claim 1, it is characterised in that: be equipped with and use in the pedestal
In the horizontal drive source for driving pedestal horizontal direction displacement and perpendicular drive source for driving the elevating mechanism lifting.
4. being applied to the luminance test device of display screen according to claim 1, it is characterised in that: the dark place cabinet is six
Face body dark place case.
5. being applied to the luminance test device of display screen according to claim 1, it is characterised in that: the bottom of the dark place cabinet
Portion is equipped with mobile bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920230093.5U CN209459870U (en) | 2019-02-25 | 2019-02-25 | Luminance test device applied to display screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920230093.5U CN209459870U (en) | 2019-02-25 | 2019-02-25 | Luminance test device applied to display screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209459870U true CN209459870U (en) | 2019-10-01 |
Family
ID=68046850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920230093.5U Active CN209459870U (en) | 2019-02-25 | 2019-02-25 | Luminance test device applied to display screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209459870U (en) |
-
2019
- 2019-02-25 CN CN201920230093.5U patent/CN209459870U/en active Active
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