CN102054468A - Automatic brightness adjusting device for digital light processing (DLP) split display system - Google Patents
Automatic brightness adjusting device for digital light processing (DLP) split display system Download PDFInfo
- Publication number
- CN102054468A CN102054468A CN 201110001972 CN201110001972A CN102054468A CN 102054468 A CN102054468 A CN 102054468A CN 201110001972 CN201110001972 CN 201110001972 CN 201110001972 A CN201110001972 A CN 201110001972A CN 102054468 A CN102054468 A CN 102054468A
- Authority
- CN
- China
- Prior art keywords
- brightness
- display unit
- module
- signal
- dlp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention discloses an automatic brightness adjusting device for a digital light processing (DLP) split display system. Each display unit is provided with a central processing unit (CPU) processing module and a brightness adjusting module, wherein each CPU processing module calculates a gain adjusting parameter of a corresponding display unit and needs adjusting according to an environment brightness signal; and each brightness adjusting module adjusts the brightness gain of a digital micro-mirror of the corresponding display unit according to the gain adjusting parameter so as to realize automatic adjustment of the brightness of the DLP split display system.
Description
Technical field
The present invention relates to display brightness regulation technology field, particularly a kind of DLP splice displaying system automatic brightness regulating device.
Background technology
Patent 200810156578.0 discloses a kind of device of adjusting display brightness according to ambient brightness automatically, comprise outside brightness acquisition testing module, inter-process module and brightness adjusting module, wherein the brightness adjusting module changes the brightness of backlight by the PWM mode, thereby change the picture output brightness of display, therefore, this device is applicable to the fluorescent tube to be the single LCD display of light source.
For the DLP splice displaying system, its a plurality of display units need be adjusted brightness simultaneously, and the change of display unit UHP or led light source brightness can not satisfy the adjustment of whole assembly wall brightness, so said apparatus is not suitable for the DLP splice displaying system.
The crucial image device of DLP splicing system is digital micro-mirror (DMD, Digital MicromirrorDevice), in the practical application, the staff adopts the mode of manual adjustments digital micro-mirror luminance gain to adjust the brightness of DLP splice displaying system, owing to need the adjustment of display unit one by one, work is wasted time and energy, and is subject to staff's functipnal capability, is difficult to realize whole assembly wall brightness unanimity.
Summary of the invention
The present invention proposes a kind of DLP splice displaying system automatic brightness regulating device, to realize the adjusting of DLP splice displaying system brightness.
DLP splice displaying system automatic brightness regulating device of the present invention comprises brightness acquisition module, brightness transition module, CPU processing module and brightness regulation module, it is characterized in that,
The number of described CPU processing module and brightness adjusting module is n, n display unit of described n CPU processing module and n the corresponding DLP splicing system of brightness regulation module difference, the corresponding display unit m with the brightness transition module of described brightness acquisition module, described display unit m are in n the display unit any one;
The described brightness acquisition module of display unit m correspondence is used to gather ambient brightness;
The described brightness transition module of display unit m correspondence is used for that the described ambient brightness of gathering is carried out the photoelectricity analog to digital conversion and obtains the ambient brightness signal;
The CPU processing module that the CPU processing module of display unit m correspondence is used to receive described ambient brightness signal and is forwarded to other display unit correspondences;
The CPU processing module of each display unit correspondence comprises comparer and arithmetical unit, described comparer is used for described ambient brightness signal and setting value compared and obtains brightness adjusting signal, described arithmetical unit be used for according to brightness regulation ratio, described brightness adjusting signal and the initial gain of corresponding display unit numeral micro mirror calculate the gain-adjusted parameter of this display unit, described brightness adjusting signal comprises not tonal signal, lightens signal and dim signal;
The brightness regulation module, be used for according to described gain-adjusted parameter regulation the luminance gain of digital micro-mirror of corresponding display unit.
Preferably, the mode of described forwarding is a forwarded.
Preferably, described brightness regulation ratio is 12%.
DLP splice displaying system automatic brightness regulating device of the present invention, be each CPU processing module of display unit configuration and brightness regulation module, the gain-adjusted parameter that each CPU processing module is adjusted according to the corresponding display unit needs of ambient brightness calculated signals, each brightness regulation module is according to the luminance gain of the digital micro-mirror of the corresponding display unit of this gain-adjusted parameter regulation, thus the automatic adjusting of realization DLP splicing system brightness.
Description of drawings
Fig. 1 is the structural representation of DLP splice displaying system automatic brightness regulating device of the present invention.
Embodiment
The assembly wall of DLP splice displaying system is made up of n display unit, for the brightness of this assembly wall is adjusted, DLP splicing system automatic brightness regulating device of the present invention comprises: brightness acquisition module, brightness transition module, CPU processing module and brightness regulation module, wherein the number of CPU processing module and brightness regulation module is n, corresponding with n display unit respectively, and any one is corresponding in brightness acquisition module and brightness transition module and n the display unit, and this sentences display unit m and represents this any display unit.The brightness acquisition module of display unit m correspondence, brightness transition module, CPU processing module and brightness regulation module link to each other successively, as shown in Figure 1, the CPU processing module of each the display unit correspondence brightness regulation module corresponding with this display unit links to each other, and the CPU processing module of the display unit m correspondence CPU processing module corresponding with other display units links to each other respectively.
The brightness acquisition module is gathered ambient brightness, the brightness transition module is carried out photoelectricity and analog to digital conversion to the ambient brightness of gathering, the ambient brightness signal that is converted to is passed to the CPU processing module of display unit m correspondence by bus, the CPU processing module of display unit m correspondence is with the CPU processing module of ambient brightness signal forwarding to other display unit correspondences, and the mode of Zhuan Faing is preferentially selected forwarded for use herein.The comparer of the CPU processing module of each display unit correspondence is relatively determined brightness regulated signal with ambient brightness value and setting value respectively, and setting value comprises upper and lower bound, is a luminance parameter of setting in advance.Prescribe a time limit greater than going up of setting value when the ambient brightness signal, must improve and piece together wall brightness to adapt to higher ambient brightness, at this moment, brightness regulated signal is for lightening signal; Must reduction piece together wall brightness to adapt to darker ambient brightness when the ambient brightness signal in limited time less than the following of setting value, at this moment, brightness regulated signal is for dimming signal; When the ambient brightness signal is between the setting value bound, illustrate that brightness of assembly wall and the ambient brightness of this moment is complementary, need not regulate brightness, at this moment, brightness regulated signal is tonal signal not.Because the setting value of each display unit is consistent, the brightness regulated signal that the comparer of the CPU processing module of each display unit correspondence obtains also is the same, so brightness regulated signal also can determine that the back transmits the comparer of the CPU processing module of other display unit correspondences by the comparer of the CPU processing module of display unit m correspondence.The brightness initial value of each display unit is consistent, but the initial gain of each display unit numeral micro mirror is also inconsistent, therefore also needs the gain-adjusted parameter of the corresponding separately display unit numeral of the arithmetical unit calculating micro mirror of each CPU processing module.The gain-adjusted parameter is determined jointly by brightness regulated signal, brightness regulation ratio and initial gain, initial gain is the luminance gain of each display unit numeral micro mirror before the brightness regulation, the brightness regulation ratio also is the value of setting in advance, mean each adjusting, heighten or turn down the number percent of former brightness, ratio commonly used is 12%.The brightness regulation module of each display unit correspondence is according to the luminance gain of gain-adjusted parameter adjustment digital micro-mirror, thereby changes the brightness of each display unit, makes that to piece together wall brightness consistent and adapt with ambient brightness.
Above-described embodiment of the present invention does not constitute the qualification to protection domain of the present invention.Any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present invention.
Claims (3)
1. a DLP splice displaying system automatic brightness regulating device comprises brightness acquisition module, brightness transition module, CPU processing module and brightness regulation module, it is characterized in that,
The number of described CPU processing module and brightness adjusting module is n, n display unit of described n CPU processing module and n the corresponding DLP splicing system of brightness regulation module difference, the corresponding display unit m with the brightness transition module of described brightness acquisition module, described display unit m are in n the display unit any one;
The described brightness acquisition module of display unit m correspondence is used to gather ambient brightness;
The described brightness transition module of display unit m correspondence is used for that the described ambient brightness of gathering is carried out the photoelectricity analog to digital conversion and obtains the ambient brightness signal;
The CPU processing module that the CPU processing module of display unit m correspondence is used to receive described ambient brightness signal and is forwarded to other display unit correspondences;
The CPU processing module of each display unit correspondence comprises comparer and arithmetical unit, described comparer is used for described ambient brightness signal and setting value compared and obtains brightness adjusting signal, described arithmetical unit be used for according to brightness regulation ratio, described brightness adjusting signal and the initial gain of corresponding display unit numeral micro mirror calculate the gain-adjusted parameter of this display unit, described brightness adjusting signal comprises not tonal signal, lightens signal and dim signal;
The brightness regulation module, be used for according to described gain-adjusted parameter regulation the luminance gain of digital micro-mirror of corresponding display unit.
2. DLP splice displaying system automatic brightness regulating device according to claim 1 is characterized in that the mode of described forwarding is a forwarded.
3. DLP splice displaying system automatic brightness regulating device according to claim 1 and 2 is characterized in that described brightness regulation ratio is 12%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110001972 CN102054468A (en) | 2011-01-06 | 2011-01-06 | Automatic brightness adjusting device for digital light processing (DLP) split display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110001972 CN102054468A (en) | 2011-01-06 | 2011-01-06 | Automatic brightness adjusting device for digital light processing (DLP) split display system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102054468A true CN102054468A (en) | 2011-05-11 |
Family
ID=43958723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110001972 Pending CN102054468A (en) | 2011-01-06 | 2011-01-06 | Automatic brightness adjusting device for digital light processing (DLP) split display system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102054468A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021374A (en) * | 2012-12-05 | 2013-04-03 | 江苏清投视讯科技有限公司 | Display image correction system of digital light processor (DLP) spliced large screen |
| CN103309298A (en) * | 2013-03-13 | 2013-09-18 | 四川天翼网络服务有限公司 | Financial industry video monitoring and analyzing system |
| CN113744686A (en) * | 2021-09-08 | 2021-12-03 | 刘国栋 | Automatic brightness adjusting system of LED spliced screen |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236739A (en) * | 2007-02-13 | 2008-08-06 | 北京德彼克创新科技有限公司 | Method and apparatus for display terminal automatically regulating brightness |
| CN101369418A (en) * | 2008-10-13 | 2009-02-18 | 南京Lg新港显示有限公司 | Apparatus and its regulation means for automatically adjusting display brightness according to ambient brightness |
| CN101604516A (en) * | 2008-06-10 | 2009-12-16 | 台达电子工业股份有限公司 | Display device, the Control Component that is used for this display device and control method |
| US20100156755A1 (en) * | 2008-12-19 | 2010-06-24 | Ching-Pao Chou | Display Panel Control Device |
| CN201585184U (en) * | 2010-01-15 | 2010-09-15 | 北京电子科技职业学院 | Intelligent living district street lamp control device |
-
2011
- 2011-01-06 CN CN 201110001972 patent/CN102054468A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101236739A (en) * | 2007-02-13 | 2008-08-06 | 北京德彼克创新科技有限公司 | Method and apparatus for display terminal automatically regulating brightness |
| CN101604516A (en) * | 2008-06-10 | 2009-12-16 | 台达电子工业股份有限公司 | Display device, the Control Component that is used for this display device and control method |
| CN101369418A (en) * | 2008-10-13 | 2009-02-18 | 南京Lg新港显示有限公司 | Apparatus and its regulation means for automatically adjusting display brightness according to ambient brightness |
| US20100156755A1 (en) * | 2008-12-19 | 2010-06-24 | Ching-Pao Chou | Display Panel Control Device |
| CN201585184U (en) * | 2010-01-15 | 2010-09-15 | 北京电子科技职业学院 | Intelligent living district street lamp control device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103021374A (en) * | 2012-12-05 | 2013-04-03 | 江苏清投视讯科技有限公司 | Display image correction system of digital light processor (DLP) spliced large screen |
| CN103309298A (en) * | 2013-03-13 | 2013-09-18 | 四川天翼网络服务有限公司 | Financial industry video monitoring and analyzing system |
| CN103309298B (en) * | 2013-03-13 | 2016-01-13 | 四川天翼网络服务有限公司 | Financial circles video monitor and analytic system |
| CN113744686A (en) * | 2021-09-08 | 2021-12-03 | 刘国栋 | Automatic brightness adjusting system of LED spliced screen |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104332140B (en) | Backlight driving system for regional dimming and regional dimming method | |
| CN102137245B (en) | Multi-screen display device | |
| CN104299601B (en) | Mosaic screen backlight illumination Automatic adjustment method and device, mosaic screen | |
| CN101282416B (en) | Method for displaying projection | |
| CN101551977B (en) | Display apparatus and light control method of the same | |
| CN102768816B (en) | LED display automated correction method | |
| EP3948499A4 (en) | Display system with dynamic light output adjustment for maintaining constant brightness | |
| EP3640928A3 (en) | Device, system and method for photometric compensation of images provided by a display device | |
| CN106710571B (en) | Display control method, display controller and tiled display system | |
| CN102854715B (en) | Projection arrangement and control method thereof | |
| EP1821534A3 (en) | Projection type image display device and brightness control method thereof | |
| JP2012049178A (en) | Semiconductor light source device, method of controlling semiconductor light source and projection device | |
| JP2012150149A (en) | Multiscreen display device | |
| CN101290744A (en) | Luminance compensating mechanism and method for backlight module | |
| EP3352162A3 (en) | Display system with automatic brightness adjustment | |
| CN106455224B (en) | The adaptively luminous generation device of secondary light source and secondary light source adjusting method | |
| JP2010528416A (en) | Ambience lighting system for display device and method of operating such ambience lighting system | |
| JP2009058786A (en) | Image display device | |
| US20090231354A1 (en) | A Color Controller for a Luminaire | |
| CN104469022A (en) | Backlight lamp regulation method and system and handheld terminal | |
| RU2019134065A (en) | SINGLE AND MULTI-MODULAR PROJECTION SYSTEMS WITH GLOBAL BRIGHTNESS CONTROL | |
| CN102054468A (en) | Automatic brightness adjusting device for digital light processing (DLP) split display system | |
| JP2012173669A (en) | Multiple screen display device | |
| EP1962130A3 (en) | Image Display Apparatus and Method of Adjusting Brightness Thereof | |
| CN101334524B (en) | Method for automatically controlling digital microscope light source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20110511 |