CN109285447A - A kind of device and display lightness regulating method for adjusting display brightness - Google Patents
A kind of device and display lightness regulating method for adjusting display brightness Download PDFInfo
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- CN109285447A CN109285447A CN201811298075.7A CN201811298075A CN109285447A CN 109285447 A CN109285447 A CN 109285447A CN 201811298075 A CN201811298075 A CN 201811298075A CN 109285447 A CN109285447 A CN 109285447A
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- polaroid
- display
- display brightness
- adjusting
- brightness
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/281—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for attenuating light intensity, e.g. comprising rotatable polarising elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention discloses a kind of device and display lightness regulating method for adjusting display brightness, which includes the first polaroid (1) and the second polaroid (2), and first polaroid (1) and second polaroid (2) are fixed by fixing piece (3)；First polaroid (1) and/or second polaroid (2) can be that axis carries out rotating the angle between the polarization direction for changing first polaroid (1) and the polarization direction of second polaroid (2) with the fixing piece (3).The present invention is by changing the angle δ between the first polaroid and the second polaroid, i.e. changeable display light emission luminance, is not influenced by light source device own efficiency, i.e., is not changed the luminescent properties of light source device, keep the display effect of luminescent device unaffected, ensure that display effect.
Description
Technical field
Present invention firstly relates to a kind of devices, more particularly, to a kind of device and method for adjusting display brightness.
Background technique
As science and technology continue to develop, the display screen of existing electronic equipment is not only individually used to show, but also
For touch operation, corresponding function is completed by touch operation and is executed.
With using the personnel of electronic equipment more and more, in order to preferably protect the eyesight of user, it is tired to reduce eyes
Labor, display screen used by existing electronic equipment have the function of adjust automatically display brightness, i.e., are used according to electronic equipment
The display brightness of the intensity of illumination adjustment display screen of environment, the intensity of illumination of specifically use environment is stronger, the display of display screen
Brightness is high；The intensity of illumination of use environment is weaker, and the display brightness of display screen is low.
Especially in AR or MR's in use, because can use under various circumstances, environmental light brightness can be different, this is just
Different brightness demands is proposed to AR or MR display, such as indoor, environmental light brightness is low, and the display brightness at this moment needed is low；And
In outdoor, environmental light brightness is high, and the display brightness at this moment needed is high.This just needs display light source can be according to ambient brightness not
With adjusting brightness, or display optical path can adjust brightness according to the difference of ambient brightness.
But it is influenced by light source device display efficiency, such as LED in existing electronic equipment when adjusting light-source brightness
Light source, when brightness is lower than LED routine work section, the efficiency of LED can be lower, and defect can be showed obviously, this will cause
Display is uneven, and effect is poor.
Summary of the invention
In order to solve the problems of in the prior art, the present invention first purpose in this is that providing one kind can change
Become the device for adjusting display brightness of display light source optical path, which realizes by changing the optical path direction of display light source
The adjusting of display brightness, without being influenced by light source device display efficiency, making display, uniformly effect is good.
The present invention second in this is designed to provide a kind of display lightness regulating method, and this method utilizes external equipment
The light emission luminance of display screen is adjusted, is not influenced by light source device itself display efficiency, display is made uniformly to guarantee display
Effect.
First purpose to realize the present invention, the provided device for adjusting display brightness includes first inclined herein
Mating plate 1 and the second polaroid 2, first polaroid 1 and second polaroid 2 are fixed by fixing piece 3；Described first partially
Mating plate 1 and/or second polaroid 2 can be that axis carries out the inclined of rotation change first polaroid 1 with the fixing piece 3
The angle to shake between direction and the polarization direction of second polaroid 2, described device is for adjusting AR or MR display equipment
Display brightness.
The device comes by adjusting the angle δ between the polarization direction of the first polaroid and the polarization direction of the second polaroid
Light throughput is controlled, it is adjustable to realize display optical path brightness, so that light source device meets under varying environment light, different display brightness
Demand.The device only needs to change angle δ, is not influenced by light source device own efficiency, i.e., does not change the hair of light source device
Optical property keeps the display effect of luminescent device unaffected, ensure that display effect.
Further, the rotating handles for rotating first polaroid are provided in the outer rim of first polaroid
A.It realizes that rotation is convenient by rotating handles A, directly acts on i.e. rotatable first polaroid on handle A, change itself and second
Angle between polaroid realizes brightness regulation, ensure that the cleaning of the first polaroid.
Further, the rotating handles for rotating second polaroid are provided in the outer rim of second polaroid
B.It realizes that rotation is convenient by rotating handles B, directly acts on i.e. rotatable second polaroid on handle B, change itself and first
Angle between polaroid realizes brightness regulation, ensure that the cleaning of the second polaroid.
Display lightness regulating method provided by the present invention adjusts display brightness by changing the optical path of display light source.It should
Method realizes the adjusting of display brightness by changing the optical path of light source, is not influenced, is made by light source device itself display efficiency
The display effect of luminescent device is unaffected, ensure that display effect.
Further, specific step is as follows for this method:
Step 1: the device that adjusting display brightness is used for described in claims 1 or 2 or 3 is installed on to the front of display light source；
Step 2: partially according to the first polaroid or second in the intensity of illumination adjustment device for adjusting display brightness
Mating plate changes the angle between the polarization direction of first polaroid and the polarization direction of second polaroid, show light
The light intensity of source divergingWith angleIncrease and reduce, achieve the purpose that adjust display brightness.
Further, the light intensityWith the angleBetween meet following relationship:
(1)
In formula (1),The light intensity after device to be used for adjusting display brightness described in,For the light after the first polaroid
By force,For the angle between the polarization direction of first polaroid and the polarization direction of second polaroid.
The beneficial effects of the present invention are: by changing the angle δ between the first polaroid and the second polaroid, i.e., it is changeable
It shows light emission luminance, is not influenced by light source device own efficiency, i.e., do not change the luminescent properties of light source device, make luminescent device
Display effect it is unaffected, ensure that display effect.
Detailed description of the invention
Fig. 1 is one of the structural schematic diagram of device provided by the present invention for adjusting display brightness；
Fig. 2 is the second structural representation of the device provided by the present invention for adjusting display brightness；
Fig. 3 is the first embodiment of the device provided by the present invention for adjusting display brightness；
Fig. 4 is second of embodiment of the device provided by the present invention for adjusting display brightness；
Fig. 5 is the third embodiment of the device provided by the present invention for adjusting display brightness；
In figure: the first polaroid of 1-, the second polaroid of 2-, 3- fixing piece, 4- micro display screen, 5- optical element, 6- input coupling
Element, 7- output coupling element, 8- beam splitter；Attached drawing middle polyline is optical path, the i.e. path of light propagation.
Specific embodiment
Further details of theory is made to the application technical solution claimed with reference to the drawings and specific embodiments herein
It is bright.
As shown in Figure 1, it is a kind of device for adjusting display brightness that the present invention is claimed first, which can be with
For adjusting the display brightness of any display device, the eyesight of viewer is preferably protected, suitable display brightness is reached.
The device includes the first polaroid 1 and the second polaroid 2, and being closely arranged between the two and pass through fixing piece 3 will
The certain point of first polaroid 1 and the second polaroid 2 is fixed, and fixing piece 3 is made to become shaft, the first polaroid 1 and/or the
Two polaroids 2 can rotate around it.When the light that display light source issues polarizes equal, the first polaroid in all directions
1 direction is any, then first polaroid 1 can be rotated with the second polaroid 2, naturally it is also possible to fix the second polaroid 2, revolve
Turn the first polaroid 1, makes to form angle between the polarization direction of both。
Three embodiments are enumerated herein, and further more detailed introduce is made to the principle of device provided by the present invention.
Embodiment one
As shown in figure 3, the embodiment is close to micro display using micro display screen 4 as display light source, by device provided by the present invention
4 setting of screen, is additionally provided with optical element 5, input coupling element 6 and output coupling element 7 between device and human eye.Pass through tune
The angle of the second polaroid 2 and the first polaroid 1 is saved, realizes the adjusting under different situations to display brightness.
The principle of the embodiment is: micro display screen projects light polarization in all directions, and all directions polarization is equal
Or it is unequal, light intensity at this time is, the polarization direction of the first polaroid and the strong polarization direction of display light source are in the same direction, with to the greatest extent
Amount passes through more light intensity.It is by the light intensity after the first polaroid, polarizing electric vector is。
The polarization direction angle of the polarization direction of second polaroid 2 and the first polaroid 1 is.Pass through the second polaroid 2
Electric vector afterwards, light intensity, the second polaroid 2 is rotated, that is, changes angle, that is, change
Light intensitySize, light intensityFor the final light intensity after the device for adjusting display brightness.By changing angleReach benefit
The purpose of display brightness is adjusted with optical path.According to cosine function,At=0 °, light intensityMaximum,At=90 °, light intensity is minimum；
The light intensity of display light source divergingWith angleIncrease and reduce, achieve the purpose that adjust display brightness.It is issued in display light source
Light polarize in all directions equal, the direction of the first polaroid 1 is any, can also fix the second polaroid 2, rotation first
Polaroid 1.
It is adjustable to adjust light intensity when environmental light brightness difference so that display brightness, under the varying environment brightness with
When adjust.To reach the display effect for making human eye comfortable.Such as when environment brightness, increase angle, reduce display brightness,
So that brightness is not dazzling；When environment bright, reduce angle, increases display brightness, allow human eye under high-brightness environment light, energy
See display content clearly.
Optical path adjusted successively enters human eye through optical element 5, input coupling element 6 and output coupling element 7, provides
Suitable light intensity.
Embodiment two
As shown in figure 4, the embodiment is close to micro display 4 using micro display screen 4 as display light source, by device provided by the present invention
Screen setting, is additionally provided with optical element 5 and beam splitter 8 between device and human eye.
Principle in the embodiment is identical as the principle in embodiment one, through provided by the present invention bright for adjusting display
The optical path adjusted of the device of degree successively enters human eye through optical element 5 and beam splitter 8, provides suitable light intensity.
Embodiment three
As shown in figure 5, the embodiment is close to micro display using micro display screen 4 as display light source, by device provided by the present invention
4 setting of screen, is equipped with optical element 5 between device and human eye.
Principle in the embodiment is identical as the principle in embodiment one, through provided by the present invention bright for adjusting display
The optical path adjusted of the device of degree successively enters human eye through optical element 5, provides suitable light intensity.
For the ease of rotating the first polaroid 1 and/or the second polaroid 2 and guaranteeing the cleanliness on the two eyeglass,
This, is provided with for rotating the first polaroid 1 in the outer rim of the first polaroid 1 provided by the present invention and/or the second polaroid 2
Rotating handles A11 or rotating handles B21 for rotating the second polaroid 2, as shown in Figure 2.The present invention passes through rotation first
Polaroid 1 or the second polaroid 2, rotation mode include that the rotating handles in embodiment such as are rotated, and can also pass through other
Mechanical system is rotated, for example connecting shaft is arranged on handle, drives the first polaroid 1 by control connecting shaft rotation
Or second polaroid 2 rotate, also include being rotated by electromagnetic mode and being not repeated herein.
Device provided by the present invention for adjusting display brightness can be used for adjusting the institute of any display light source
The intensity of light source emitted is such as used for AR display screen, MR display screen etc..The principle of the device is by changing display light source
Optical path adjust display brightness, the specific steps are as follows:
Step 1: the provided device for being used for adjusting display brightness is installed on to the front of display light source；
Step 2: first in the device for adjusting display brightness adjusted according to the intensity of illumination that display light source is worked is partially
Mating plate 1 or the second polaroid 2 change the angle between the polarization direction of the first polaroid 1 and the polarization direction of the second polaroid 2, the light intensity of display light source divergingWith angleIncrease and reduce, achieve the purpose that adjust display brightness.
Wherein, light intensityWith angleBetween meet following relationship:
(1)
In formula (1),The light intensity after device to be used for adjusting display brightness described in,For the light after the first polaroid
By force,For the angle between the polarization direction of first polaroid and the polarization direction of second polaroid.
First polaroid 1 of the device provided by the present invention for adjusting display brightness be located next to display light source, second
Polaroid 2 is located next to the first polaroid 1, sees sake of clarity in figure, there is certain distance, but be actually closely, can
When showing equipment for adjusting AR or MR effectively to reduce the distance of whole device, especially described device, it can reduce whole
The weight of a display equipment volume and shell sizes and entire display equipment, provides comfort.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, those of ordinary skill in the art are to this hair
The modification or equivalent replacement that bright technical solution is made are contained without departing from the spirit and scope of technical solution of the present invention
It covers in scope of the presently claimed invention.
Claims (6)
1. a kind of device and display lightness regulating method for adjusting display brightness, it is characterised in that: the device includes first
Polaroid (1) and the second polaroid (2), first polaroid (1) and second polaroid (2) are solid by fixing piece (3)
It is fixed；First polaroid (1) and/or second polaroid (2) can be that axis carries out rotation change with the fixing piece (3)
Angle between the polarization direction of first polaroid (1) and the polarization direction of second polaroid (2), described device
The display brightness of equipment is shown for adjusting AR or MR.
2. a kind of device for adjusting display brightness according to claim 1, it is characterised in that: first polaroid
(1) the rotating handles A(11 for rotating first polaroid (1) is provided in outer rim).
3. a kind of device for adjusting display brightness according to claim 1 or 2, it is characterised in that: described second partially
The rotating handles B(21 for rotating second polaroid (2) is provided in the outer rim of mating plate (2)).
4. a kind of application method for the device of adjusting display brightness as described in claim 1, it is characterised in that: this method
Display brightness is adjusted by changing the optical path of display light source.
5. according to the method described in claim 4, it is characterized by: adjusting display brightness by the optical path for changing display light source
Specific step is as follows:
Step 1: the device that adjusting display brightness is used for described in claims 1 or 2 or 3 is installed on to the front of display light source；
Step 2: according to the first polaroid (1) or second in the intensity of illumination adjustment device for adjusting display brightness
Polaroid (2) changes the folder between the polarization direction of first polaroid (1) and the polarization direction of second polaroid (2)
Angle, the light intensity of display light source divergingWith angleIncrease and reduce, achieve the purpose that adjust display brightness.
6. according to the method described in claim 5, it is characterized by: the light intensityWith the angleBetween meet with ShiShimonoseki
System:
(1)
In formula (1),The light intensity after device to be used for adjusting display brightness described in,For the light intensity after the first polaroid,For the angle between the polarization direction of first polaroid and the polarization direction of second polaroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811298075.7A CN109285447A (en) | 2018-11-02 | 2018-11-02 | A kind of device and display lightness regulating method for adjusting display brightness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811298075.7A CN109285447A (en) | 2018-11-02 | 2018-11-02 | A kind of device and display lightness regulating method for adjusting display brightness |
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| Publication Number | Publication Date |
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| CN109285447A true CN109285447A (en) | 2019-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811298075.7A Pending CN109285447A (en) | 2018-11-02 | 2018-11-02 | A kind of device and display lightness regulating method for adjusting display brightness |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504388A (en) * | 2019-09-19 | 2019-11-26 | 合肥京东方显示技术有限公司 | Display brightness regulating device and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201285470Y (en) * | 2008-11-10 | 2009-08-05 | 山东神戎电子股份有限公司 | Transmission type helmet display |
| CN202204988U (en) * | 2011-08-26 | 2012-04-25 | 深圳Tcl新技术有限公司 | 3D glasses capable of adjusting light ray brightness |
| CN104090416A (en) * | 2014-07-10 | 2014-10-08 | 京东方科技集团股份有限公司 | Interesting display system |
| CN105954870A (en) * | 2016-06-29 | 2016-09-21 | 南京信息工程大学 | Dimming glass based on polarizing light plate |
| CN108598857A (en) * | 2018-06-22 | 2018-09-28 | 王英棠 | Laser brightness adjusting part and laser |
-
2018
- 2018-11-02 CN CN201811298075.7A patent/CN109285447A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201285470Y (en) * | 2008-11-10 | 2009-08-05 | 山东神戎电子股份有限公司 | Transmission type helmet display |
| CN202204988U (en) * | 2011-08-26 | 2012-04-25 | 深圳Tcl新技术有限公司 | 3D glasses capable of adjusting light ray brightness |
| CN104090416A (en) * | 2014-07-10 | 2014-10-08 | 京东方科技集团股份有限公司 | Interesting display system |
| CN105954870A (en) * | 2016-06-29 | 2016-09-21 | 南京信息工程大学 | Dimming glass based on polarizing light plate |
| CN108598857A (en) * | 2018-06-22 | 2018-09-28 | 王英棠 | Laser brightness adjusting part and laser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110504388A (en) * | 2019-09-19 | 2019-11-26 | 合肥京东方显示技术有限公司 | Display brightness regulating device and display device |
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Application publication date: 20190129 |