CN108053790A - LED display and its brightness adjusting method - Google Patents
LED display and its brightness adjusting method Download PDFInfo
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- CN108053790A CN108053790A CN201711248103.XA CN201711248103A CN108053790A CN 108053790 A CN108053790 A CN 108053790A CN 201711248103 A CN201711248103 A CN 201711248103A CN 108053790 A CN108053790 A CN 108053790A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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Abstract
The present invention discloses a kind of LED display and its brightness adjusting method, the described method includes：Obtain the chromaticity coordinates of the three primary colours component of display unit, then according to the chromaticity coordinates of the three primary colours component, and default object brightness and target color coordinates of the display unit under each display environment, calculate brightness of the three primary colours component under each display environment, brightness of the three primary colours component of display unit under each display environment is stored, and establish the correspondence of the brightness and each display environment, to adjust brightness of each display unit of the LED display under different display environments according to the correspondence, through the above way, the present invention can automatically adjust the brightness of LED display according to display environment.
Description
Technical field
The present invention relates to LED display technical field more particularly to a kind of LED displays and its brightness adjusting method.
Background technology
With the continuous development of technology, display screen is provided on more and more electronic equipments, it is each to be presented to user
The information of kind form, at the same time, people are also higher and higher to the actual requirement of these display screens, and display brightness is people's perception
The first element of display screen, therefore the adjusting of brightness becomes particularly important, however existing many display screens are in different uses
User is usually required in environment and adjusts brightness manually, is not easy to user's use.
The content of the invention
The invention mainly solves the technical problem of providing a kind of LED display and its brightness adjusting method and device, energy
The brightness of enough different automatic adjustment LED displays according to display environment, is user-friendly.
A kind of brightness adjusting method of LED display provided in an embodiment of the present invention, including：
The chromaticity coordinates of the three primary colours component of display unit is obtained, the three primary colours component includes red component, green component
And blue component；
According to the default object brightness of the chromaticity coordinates of the three primary colours component and display unit under each display environment
And target color coordinates, calculate brightness of the three primary colours component under each display environment；
Brightness of the three primary colours component of display unit under each display environment is stored, and establishes the brightness
With the correspondence of each display environment, to adjust each display unit of the LED display according to the correspondence in difference
Brightness under display environment.
The embodiment of the present application also provides a kind of LED display, including：
Acquisition module, for obtaining the chromaticity coordinates of the three primary colours component of display unit, the three primary colours component includes red
Component, green component and blue component；
Computing module, for the chromaticity coordinates according to the three primary colours component and display unit under each display environment
Default object brightness and target color coordinates calculate brightness of the three primary colours component under each display environment；
Memory module, for brightness of the three primary colours component of display unit under each display environment to be stored,
And the correspondence of the brightness and each display environment is established, to adjust each of the LED display according to the correspondence
Brightness of the display unit under different display environments.
In the brightness adjusting method of LED display of the present invention, the chromaticity coordinates of the three primary colours component of display unit is obtained, then
According to the default object brightness and target color coordinates of the chromaticity coordinates and display unit under each display environment, three primary colours are calculated
Brightness of the component under each display environment, and result of calculation is stored, and establish the correspondence of the brightness and each display environment
Relation, so as to adjust brightness of each display unit of LED display under different display environments according to the correspondence.
Description of the drawings
Fig. 1 is the flow diagram for one embodiment of brightness adjusting method that LED of the present invention is shown；
Fig. 2 is the structure diagram of LED display of the present invention.
Specific embodiment
Refering to Fig. 1, in the brightness adjusting method of LED display of the present invention, comprise the following steps：
101st, the chromaticity coordinates of the three primary colours component of display unit is obtained, three primary colours component includes red component, green component
And blue component.
Wherein, a display unit is considered as a pixel, and each pixel includes red component, green component and indigo plant
Colouring component, the chromaticity coordinates of three primary colours component are the color for referring to red component light source, green component light source and blue component light source
Coordinate.For example, the chromaticity coordinates of the three primary colours component of each display unit of color analysis instrument detection can be utilized.
102nd, the default object brightness according to the chromaticity coordinates of three primary colours component and display unit under each display environment
And target color coordinates, calculate brightness of the three primary colours component under each display environment.
Wherein it is possible to pre-set the object brightness and target color coordinates of each display unit corresponding to each display environment.
Display environment can include the different display environment of ambient brightness, such as including two kinds of display environments of day and night, Huo Zheke
To include four kinds of morning, daytime, dusk and night display environments.Wherein, display environment can be divided according to the time, example
Such as morning 6:00~7:00 period be breakfast display environment, 7:00~17:00 be daytime display environment, 17:00~
19:00 be dusk display environment, 19:00~6:00 is the display environment at night.Under each display environment, LED display
The object brightness and target color coordinates of each display unit can differ.
In the present embodiment, calculating brightness of the three primary colours component under each display environment can specifically carry out according to equation below
It calculates：
(xr-xc) * Lr/yr+ (xg-xc) * Lg/yg+ (xb-xc) * Lb/yb=0
(yr-yc) * Lr/yr+ (yg-yc) * Lg/yg+ (yb-yc) * Lb/yb=0
Lr+Lg+Lb=Lc
Wherein, (xr, yr), (xg, yg), (xb, yb) are respectively that the color of red component, green component and blue component is sat
Mark, (xc, yc) represent target color coordinates, and Lc represents the object brightness of each display unit wherein under a display environment, Lr,
Lg, Lb represent the brightness of the red component, green component and blue component of each display unit under corresponding display environment respectively.
As a result, in the case of the chromaticity coordinates of known three primary colours component, object brightness and target color coordinates, by solving above-mentioned equation
Group, so as to brightness Lr, Lg, Lb for drawing three primary colours component namely under this kind of display environment, three primary colours component it is bright
Degree.
Such as, it is assumed that the chromaticity coordinates of the red component of a display unit be (xr=0.70, yr=0.30), green component
Chromaticity coordinates for (xg=0.17, yg=0.70), the chromaticity coordinates of blue component is (xb=0.13, yb=0.075), the display list
Default object brightness of the member under certain display environment is 2000cd, and target color coordinates (xc=0.313, yc=0.329) will
These given datas substitute into above-mentioned formula, and the brightness Lr=496cd, the brightness Lg=of green component of red component is calculated
1312cd, the brightness of blue component is 192cd.
103rd, brightness of the three primary colours component of display unit under each display environment is stored, and establish brightness with it is each
The correspondence of display environment, to adjust each display unit of LED display according to correspondence under different display environments
Brightness.
For example, being calculated after the brightness of three primary colours component of each display unit under the display environment at dusk, will calculate
It obtains brightness to be stored, and establishes the brightness of the three primary colours component of each display unit and the corresponding pass of the display environment at dusk
System, so as to which when LED display is in the display environment at dusk, three bases of each display unit can be determined according to the correspondence
The brightness of colouring component, and then according to the unit of each display unit of definite brightness regulation, so as to fulfill the brightness of LED display
It adjusts.
Specifically, after correspondence of the brightness with each display environment is established, can also include the following steps：In LED
When display screen is shown, the current display environment of LED display is determined, it is true according to current display environment using correspondence
The corresponding brightness of three primary colours component of fixed each display unit, is then institute by the brightness regulation of the three primary colours component of each display unit
Definite brightness.
Wherein it is possible to by obtaining the system time of LED display come current aobvious when determining that LED display is shown
Show environment, such as the system time of acquisition is 17:30, it is determined that current display environment is the display environment at dusk, then basis
The brightness of the three primary colours component of the corresponding each display unit of display environment at dusk, determines the three primary colours component of each display unit
Brightness, so as to be identified brightness by the brightness regulation of the three primary colours component of each display unit, so that LED display can
To carry out brightness regulation automatically according to display environment.
By the above-mentioned means, the embodiment of the present invention can be according to the bright of the automatic condition LED display of difference of display environment
Degree, improves the display effect of LED display, and passes through above-mentioned regulative mode, it is ensured that the brightness of LED display, color
The uniformity of reduction degree.
Refering to Fig. 2, a kind of LED display provided in an embodiment of the present invention can include acquisition module 201, computing module
202 and memory module 203.
Wherein, acquisition module 201 is used to obtain the chromaticity coordinates of the three primary colours component of display unit, and three primary colours component includes red
Colouring component, green component and blue component.For example, the three primary colours that color analysis instrument detects each display unit can be utilized to divide
The chromaticity coordinates of amount.Computing module 202 is used for chromaticity coordinates and display unit according to three primary colours component under each display environment
Default object brightness and target color coordinates calculate brightness of the three primary colours component under each display environment.Wherein it is possible to it sets in advance
The object brightness and target color coordinates of each display unit corresponding to each display environment are put, display environment can include ambient brightness
Different display environments, for example, including two kinds of display environments of day and night or can include morning, daytime, dusk and
Four kinds of display environments of night.
In the present embodiment, calculating brightness of the three primary colours component under each display environment can specifically carry out according to equation below
It calculates：
(xr-xc) * Lr/yr+ (xg-xc) * Lg/yg+ (xb-xc) * Lb/yb=0
(yr-yc) * Lr/yr+ (yg-yc) * Lg/yg+ (yb-yc) * Lb/yb=0
Lr+Lg+Lb=Lc
Wherein, (xr, yr), (xg, yg), (xb, yb) are respectively that the color of red component, green component and blue component is sat
Mark, (xc, yc) represent target color coordinates, and Lc represents the object brightness of each display unit wherein under a display environment, Lr,
Lg, Lb represent the brightness of the red component, green component and blue component of each display unit under corresponding display environment respectively.
As a result, in the case of the chromaticity coordinates of known three primary colours component, object brightness and target color coordinates, by solving above-mentioned equation
Group, so as to brightness Lr, Lg, Lb for drawing three primary colours component namely under this kind of display environment, three primary colours component it is bright
Degree.
Memory module is established for brightness of the three primary colours component of display unit under each display environment to be stored
Brightness and the correspondence of each display environment, to adjust each display unit of LED display according to correspondence in different displays
Brightness under environment.For example, be calculated after the brightness of three primary colours component of each display unit under the display environment at dusk, it will
Brightness is calculated to be stored, and establishes the brightness of the three primary colours component of each display unit and pair of the display environment at dusk
It should be related to, so as to which when LED display is in the display environment at dusk, each display unit can be determined according to the correspondence
The brightness of three primary colours component, and then according to the unit of each display unit of definite brightness regulation, so as to fulfill LED display
Brightness regulation.
Further, LED display further includes adjustment module 204.Adjustment module 204 is used to that each display unit will to be established
The brightness of three primary colours component and the correspondence of each display environment after, when LED display is shown, determine that LED is shown
Then using the correspondence, the three primary colours of each display unit are determined according to current display environment for the current display environment of display screen
Then the brightness regulation of the three primary colours component of each display unit is identified brightness by the corresponding brightness of component.
By the above-mentioned means, the embodiment of the present invention can be according to the bright of the automatic condition LED display of difference of display environment
Degree, improves the display effect of LED display, and passes through above-mentioned regulative mode, it is ensured that the brightness of LED display, color
The uniformity of reduction degree.
The foregoing is merely embodiments of the present invention, are not intended to limit the scope of the invention, every to utilize this
It is relevant to be directly or indirectly used in other for the equivalent structure or equivalent flow shift that description of the invention and accompanying drawing content are made
Technical field is included within the scope of the present invention.
Claims (8)
1. a kind of brightness adjusting method of LED display, which is characterized in that including：
Obtain display unit three primary colours component chromaticity coordinates, the three primary colours component include red component, green component and
Blue component；
According to the default object brightness and mesh of the chromaticity coordinates of the three primary colours component and display unit under each display environment
Chromaticity coordinates is marked, calculates brightness of the three primary colours component under each display environment；
Brightness of the three primary colours component of display unit under each display environment is stored, and establish the brightness with it is each
The correspondence of display environment, to adjust each display unit of the LED display according to the correspondence in different displays
Brightness under environment.
2. brightness adjusting method according to claim 1, which is characterized in that described to be sat according to the color of the three primary colours component
The default object brightness and target color coordinates of mark and display unit under each display environment, calculate the three primary colours component
Brightness under each display environment, including：
Brightness of the three primary colours component under each display environment is calculated according to the following formula：
(xr-xc) * Lr/yr+ (xg-xc) * Lg/yg+ (xb-xc) * Lb/yb=0
(yr-yc) * Lr/yr+ (yg-yc) * Lg/yg+ (yb-yc) * Lb/yb=0
Lr+Lg+Lb=Lc
Wherein, (xr, yr), (xg, yg), (xb, yb) are respectively the chromaticity coordinates of red component, green component and blue component,
(xc, yc) represents target color coordinates, and Lc represents the object brightness of each display unit wherein under a display environment, Lr, Lg, Lb
The brightness of the red component, green component and blue component of each display unit under corresponding display environment is represented respectively.
3. brightness adjusting method according to claim 1, which is characterized in that the three primary colours by display unit point
The brightness measured under each display environment is stored, and establishes the brightness with after the correspondence of each display environment, also wrapping
It includes：
When LED display is shown, the current display environment of LED display is determined；
Using the correspondence, determine that the three primary colours component of each display unit is corresponding bright according to the current display environment
Degree；
It is identified brightness by the brightness regulation of the three primary colours component of each display unit.
4. according to claim 1-3 any one of them brightness adjusting methods, which is characterized in that the display environment includes daytime
Display module and night display module.
5. a kind of LED display, which is characterized in that including：
Acquisition module, for obtaining the chromaticity coordinates of the three primary colours component of display unit, the three primary colours component include red component,
Green component and blue component；
Computing module, it is default under each display environment for the chromaticity coordinates according to the three primary colours component and display unit
Object brightness and target color coordinates, calculate brightness of the three primary colours component under each display environment；
Memory module for brightness of the three primary colours component of display unit under each display environment to be stored, and is built
The brightness and the correspondence of each display environment are stood, to adjust each display of the LED display according to the correspondence
Brightness of the unit under different display environments.
6. LED display according to claim 5, which is characterized in that the computing module is specifically used for：
Brightness of the three primary colours component under each display environment is calculated according to the following formula：
(xr-xc) * Lr/yr+ (xg-xc) * Lg/yg+ (xb-xc) * Lb/yb=0
(yr-yc) * Lr/yr+ (yg-yc) * Lg/yg+ (yb-yc) * Lb/yb=0
Lr+Lg+Lb=Lc
Wherein, (xr, yr), (xg, yg), (xb, yb) are respectively the chromaticity coordinates of red component, green component and blue component,
(xc, yc) represents target color coordinates, and Lc represents the object brightness of each display unit wherein under a display environment, Lr, Lg, Lb
The brightness of the red component, green component and blue component of each display unit under corresponding display environment is represented respectively.
7. LED display according to claim 5, which is characterized in that further include adjustment module, the adjustment module is specific
For：
When LED display is shown, the current display environment of LED display is determined；
Using the correspondence, determine that the three primary colours component of each display unit is corresponding bright according to the current display environment
Degree；
It is identified brightness by the brightness regulation of the three primary colours component of each display unit.
8. according to claim 5-7 any one of them LED displays, which is characterized in that the display environment is shown including daytime
Show module and night display module.
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| CN201711248103.XA CN108053790A (en) | 2017-12-01 | 2017-12-01 | LED display and its brightness adjusting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021103832A1 (en) * | 2019-11-27 | 2021-06-03 | 深圳市万普拉斯科技有限公司 | Method and apparatus for adjusting display brightness, and electronic device, and storage medium |
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2017
- 2017-12-01 CN CN201711248103.XA patent/CN108053790A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021103832A1 (en) * | 2019-11-27 | 2021-06-03 | 深圳市万普拉斯科技有限公司 | Method and apparatus for adjusting display brightness, and electronic device, and storage medium |
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Address after: 518000 201, No. 13, Huiye Road, Tangjia community, Fenghuang street, Guangming District, Shenzhen City, Guangdong Province Applicant after: Shendecai photoelectric (Shenzhen) Co., Ltd Address before: 518000 Guangdong province Shenzhen Guangming New District Gongming building village community Zhongtai road 18 German color Industrial Park Applicant before: Shenzhen Dicolor Optoelectronics Co., Ltd. |
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Address after: 518000 201, No. 13, Huiye Road, Tangjia community, Fenghuang street, Guangming District, Shenzhen City, Guangdong Province Applicant after: Shendecai Technology (Shenzhen) Co., Ltd Address before: 518000 201, No. 13, Huiye Road, Tangjia community, Fenghuang street, Guangming District, Shenzhen City, Guangdong Province Applicant before: Shendecai photoelectric (Shenzhen) Co.,Ltd. |
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Application publication date: 20180518 |