CN102750931B - Method and device for adjusting conformity of spliced wall - Google Patents
Method and device for adjusting conformity of spliced wall Download PDFInfo
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- CN102750931B CN102750931B CN201210260941.XA CN201210260941A CN102750931B CN 102750931 B CN102750931 B CN 102750931B CN 201210260941 A CN201210260941 A CN 201210260941A CN 102750931 B CN102750931 B CN 102750931B
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Abstract
The embodiment of the invention discloses a method and device for adjusting the conformity of a spliced wall, which are used for automatically adjusting the conformity of brightness and chromaticity of the entire wall after a light source of the spliced wall is changed. The spliced wall is formed by splicing a plurality of display units. The method comprises the following steps of: detecting the light source characteristic parameters of one display unit; and adjusting the light source characteristic parameters of the display unit when the difference between the light source characteristic parameters and the preset light source characteristic parameters of the display unit meets preset conditions.
Description
Technical field
The present invention relates to combination display technique field, especially relate to a kind of adjustment conforming method of combination and device.
Background technology
Along with the development of computer technology, combination is as the display technique branch of specialty, and its application is more and more extensive; Combination is built relatively more flexible, according to the requirement of user to input signal, can select different processing system for video, thus meet different use occasion, the demand of unlike signal input; Also can pass through control software design, realize the switching of various signal, be spliced into full screen display, combination in any display etc.
But the light source of combination in use between long afterwards, can brightness decay be there is, when brightness decay reach light source itself dispatch from the factory the ratio of definition time, can think that light source reaches maximum life, now need the light source changing combination this display unit.Prior art is after replacing display unit light source, due to the brightness of display unit light source and the individual difference of colourity, brightness and the colourity consistance of the whole wall of combination can change, now need manually to adjust the consistance of combination, but the consistency adjustment of combination needs technical professional to operate, higher to the requirement of personnel, the workload of consistency adjustment is comparatively large, namely too increases the operation easier of replacing light source simultaneously.
Summary of the invention
Embodiments provide a kind of adjustment conforming method of combination and device, for automatically adjusting the consistance of whole wall brightness and colourity after combination changes light source.
In view of this, the embodiment of the present invention provides respectively:
A kind of conforming method of adjustment combination, described combination is spliced by several display units, and wherein, the method comprises:
The light source characteristic parameter of detection display unit;
When determining that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, the light source characteristic parameter of this display unit is adjusted.
Alternatively, described light source characteristic parameter is the luminance parameter of light source and the colorimetric parameter of light source.
Further, described in determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, specifically comprise:
Difference between the luminance parameter of the light source preset when the luminance parameter and this display unit of determining light source is greater than the first predetermined threshold value, and/or the difference between the colorimetric parameter of the light source that the colorimetric parameter and this display unit of determining light source are preset is when being greater than the second predetermined threshold value, determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite.
Further, described in determine the light source that the colorimetric parameter of light source and this display unit are preset colorimetric parameter between difference be greater than the second predetermined threshold value, also comprise before:
Adopt formula S=sqrt (a Δ x^2+ Δ y^2), obtain the colorimetric parameter of light source;
Wherein, S is the colorimetric parameter of light source, and (x, y) is light source colour coordinate, and Δ x is the difference value of current x chromaticity coordinates and default x chromaticity coordinates, and Δ y is the difference value of current y chromaticity coordinates and default y chromaticity coordinates, and sqrt is square root function, and a is weight coefficient.
Alternatively, the described light source characteristic parameter to this display unit adjusts, and specifically comprises:
The light source characteristic parameter of approach method to this display unit is adopted to adjust.
The embodiment of the present invention also provides a kind of adjustment combination conforming device, and described combination is spliced by several display units, and wherein, this device comprises:
Sensor, for the light source characteristic parameter of detection display unit;
Controller, for when determining that the difference between light source characteristic parameter that described sensor detects and the light source characteristic parameter that this display unit is preset meets prerequisite, adjusts the light source characteristic parameter of this display unit.
Alternatively, described sensor, specifically for the luminance parameter of the light source of detection display unit and the colorimetric parameter of light source.
Further, described controller, the first predetermined threshold value is greater than specifically for the difference between the luminance parameter determining the light source that the luminance parameter of light source and this display unit are preset, and/or the difference between the colorimetric parameter of the light source that the colorimetric parameter and this display unit of determining light source are preset is when being greater than the second predetermined threshold value, when the difference determining between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, the light source characteristic parameter of approach method to this display unit is adopted to adjust.
Further, described controller, difference between the colorimetric parameter of the light source preset at the colorimetric parameter and this display unit of determining light source is greater than the second predetermined threshold value, before also for: adopt formula S=sqrt (a Δ x^2+ Δ y^2), obtain the colorimetric parameter of light source; Wherein, S is the colorimetric parameter of light source, and (x, y) is light source colour coordinate, and Δ x is the difference value of current x chromaticity coordinates and default x chromaticity coordinates, and Δ y is the difference value of current y chromaticity coordinates and default y chromaticity coordinates, and sqrt is square root function, and a is weight coefficient.
As can be seen from the above technical solutions, the one adjustment conforming method of combination that the embodiment of the present invention provides and device, by the characterisitic parameter of the light source of joined screen display unit, the light source characteristic parameter preset with this display unit compares, when difference when between the two meets prerequisite, the light source characteristic parameter of this display unit is adjusted, thus after combination changes light source, automatically the consistance of the whole wall of combination can be adjusted, without the need to the intervention of technician, the requirement of maintainer is reduced greatly, also reduce the operation easier that combination changes light source simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described describing the required accompanying drawing used to embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The conforming method flow diagram of one adjustment combination that Fig. 1 provides for the embodiment of the present invention;
The conforming method flow diagram of another kind adjustment combination that Fig. 2 provides for the embodiment of the present invention;
A kind of structural representation adjusting the conforming device of combination that Fig. 3 provides for the embodiment of the present invention.
Embodiment
Embodiments provide a kind of adjustment conforming method of combination and device, for automatically adjusting the consistance of whole wall brightness and colourity after combination changes light source.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Below be described in detail respectively.
Please refer to Fig. 1, the conforming method flow diagram of one adjustment combination that Fig. 1 provides for the embodiment of the present invention, wherein, described combination is spliced by several display units, and the conforming method of this adjustment combination, comprising:
The light source characteristic parameter of step 101, detection display unit;
Step 102, when determining that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, the light source characteristic parameter of this display unit to be adjusted.
From the above, the conforming method of one adjustment combination that the embodiment of the present invention provides, by the characterisitic parameter of the light source of joined screen display unit, the light source characteristic parameter preset with this display unit compares, when difference when between the two meets prerequisite, the light source characteristic parameter of this display unit is adjusted, thus after combination changes light source, automatically the consistance of the whole wall of combination can be adjusted, without the need to the intervention of technician, the requirement of maintainer is reduced greatly, also reduces the operation easier that combination changes light source simultaneously.
Alternatively, in embodiments of the present invention, described light source characteristic parameter is the luminance parameter of light source and the colorimetric parameter of light source, can think preferably, when difference between the light source characteristic parameter that colorimetric parameter and this display unit of the luminance parameter and light source of determining described light source are preset meets prerequisite, the light-source brightness parameter of this display unit and colorimetric parameter are adjusted.
Be the luminance parameter of light source and the colorimetric parameter of light source based on described light source characteristic parameter, determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, can be specially:
Difference between the luminance parameter of the light source preset when the luminance parameter and this display unit of determining light source is greater than the first predetermined threshold value, and/or the difference between the colorimetric parameter of the light source that the colorimetric parameter and this display unit of determining light source are preset is when being greater than the second predetermined threshold value, determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite.
Preferably, the conforming method flow diagram of another kind adjustment combination that can provide for the embodiment of the present invention with reference to figure 2, Fig. 2, wherein, step 102 can specifically comprise:
Difference between the luminance parameter of the light source that step 1021, the luminance parameter determining light source and this display unit are preset is greater than the first predetermined threshold value;
Difference between the colorimetric parameter of the light source that step 1022, the colorimetric parameter determining light source and this display unit are preset is greater than the second predetermined threshold value;
Step 1023, the light-source brightness parameter of this display unit and colorimetric parameter to be adjusted;
Be understandable that, if the difference between the luminance parameter determining the light source that the luminance parameter of light source and this display unit are preset is greater than the first predetermined threshold value (step 1021), can determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite; If or the difference between the colorimetric parameter determining the light source that the colorimetric parameter of light source and this display unit are preset is greater than the second predetermined threshold value (step 1022), also can determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite; Or the difference between the luminance parameter determining the light source that the luminance parameter of light source and this display unit are preset is greater than the first predetermined threshold value, and the difference between the colorimetric parameter determining the light source that the colorimetric parameter of light source and this display unit are preset is when being greater than the second predetermined threshold value, also can determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite.
Separately it should be noted that, difference between the luminance parameter determining the light source that the luminance parameter of light source and this display unit are preset is greater than the first predetermined threshold value (step 1021), with the difference between the colorimetric parameter determining the light source that the colorimetric parameter of light source and this display unit are preset is greater than the second predetermined threshold value (step 1022), judgement can be carried out sequentially to determine, can carry out judgement to determine, the embodiment of the present invention does not do concrete restriction to this simultaneously yet.
Alternatively, in the present embodiment, utilize the luminance parameter of tristimulus values sensor detection light source and the colorimetric parameter of light source, tristimulus values sensor also can be called spectral tristimulus value sensor, as its name suggests, namely the output valve of tristimulus values sensor is tristimulus values X, Y, Z.
According to tristimulus values X, Y, Z of the reading of tristimulus values sensor, colorimetric parameter and the luminance parameter of light source can be judged, wherein, luminance parameter can directly represent with luminance parameter (Y)=Y, colorimetric parameter can use light source chromaticity coordinates (x, y) represent, x=X/ (X+Y+Z), y=Y/ (X+Y+Z);
Alternatively, in the embodiment of the present invention, luminance parameter (Y) and colorimetric parameter (i.e. light source colour coordinate (x can be determined according to diversity judgement, y)) whether prerequisite is met, particularly, for luminance parameter (Y), can by the method for directly contrast, the luminance parameter (can be expressed as Y ') of the light source namely Y and this display unit preset compares judgement, if the difference between the luminance parameter Y ' determining the light source that luminance parameter (the Y)=Y of light source and this display unit are preset is greater than the first predetermined threshold value, namely Δ Y=|Y '-Y| is greater than the first predetermined threshold value, then can think and need to adjust the light-source brightness parameter of this display unit,
Alternatively, for colorimetric parameter, difference between the colorimetric parameter of the light source that the colorimetric parameter determining light source described and this display unit are preset is greater than the second predetermined threshold value, can also comprise: adopt formula S=sqrt (a Δ x^2+ Δ y^2), obtain the colorimetric parameter of light source before; Wherein, S is the colorimetric parameter of light source, and (x, y) is light source colour coordinate, and Δ x is the difference value of current x chromaticity coordinates and default x chromaticity coordinates, and Δ y is the difference value of current y chromaticity coordinates and default y chromaticity coordinates, and sqrt is square root function, and a is weight coefficient; Thereafter, by the method directly contrasted, the colorimetric parameter (can be expressed as S ') of the light source namely current colorimetric parameter S that determines and this display unit preset compares judgement, if determine the colorimetric parameter S=(x of light source, y) difference and between the colorimetric parameter S ' of light source that presets of this display unit is greater than the second predetermined threshold value, namely Δ S=|S '-S| is greater than the second predetermined threshold value, then can think and need to adjust the Illuminant chromaticity parameter of this display unit; Separately it should be noted that, in embodiment of the present invention, utilize formula, by chromaticity coordinates (x, y) be converted to parameter S, judge that colorimetric parameter is the need of adjustment, by 2 dimension variable (x in formula, y) be converted to a parameter, optimize the standard of judgement; Because human eye feels inconsistent to x, y, therefore increase the ratio that weight coefficient a corrects x and y;
Be understandable that, first predetermined threshold value and the second predetermined threshold value preset before replacing combination light source, in practical operation, can by RGB (the Red Green Blue of adjustment light source module, RGB) characteristic, the light characteristic of light source and colorimetric properties are adjusted to the state that consistance needs, and the luminance parameter stored under this state and colorimetric parameter; Wherein, light source is made up of RGB three-color light source, can be referred to as light source module.
Further, adjust (step 1023) to the light-source brightness parameter of this display unit and colorimetric parameter can be specially: adopt the light source characteristic parameter of approach method to this display unit to adjust.
When determining that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, namely can think that the RGB ratio of light source needs to adjust; Such as, because the brightness of light source (as LED (Light Emitting Diode, light emitting diode)) and current value are nonlinear relations, approach method can therefore be adopted by the brightness adjustment of RGB to the ratio needed during consistance; In some embodiments, when whether the difference between the luminance parameter that sensor judges the light source that the luminance parameter of light source and this display unit are preset is greater than the first predetermined threshold value, if so, the current value of a step-length is adjusted, until the brightness of RGB is approached the ratio to needing during consistance; If not, then the current value under this state is preserved;
Be understandable that, arranging of step-length can be determined according to the variable of reality adjustment; In addition, the present embodiment is only described for the luminance parameter adjusting light source, apparent, and the colorimetric parameter of light source also can adopt approach method adjustment, is not specifically addressed herein.
From the above, the conforming method of one adjustment combination that the embodiment of the present invention provides, by the characterisitic parameter of the light source of joined screen display unit, the light source characteristic parameter preset with this display unit compares, when difference when between the two meets prerequisite, the light source characteristic parameter of this display unit is adjusted, thus after combination changes light source, automatically the consistance of the whole wall of combination can be adjusted, without the need to the intervention of technician, the requirement of maintainer is reduced greatly, also reduces the operation easier that combination changes light source simultaneously.
For ease of better implementing the technical scheme of the embodiment of the present invention, the embodiment of the present invention is also provided for the relevant apparatus implementing said method.Wherein the implication of noun is identical with said method, and specific implementation details can explanation in reference method embodiment.
Please refer to Fig. 3, a kind of structural representation adjusting the conforming device of combination that Fig. 3 provides for the embodiment of the present invention, described combination is spliced by several display units, and wherein, this device comprises:
Sensor 301, for the light source characteristic parameter of detection display unit;
Controller 302, for when determining that the difference between the light source characteristic parameter that described sensor 301 detects and the light source characteristic parameter that this display unit is preset meets prerequisite, adjusts the light source characteristic parameter of this display unit.
From the above, the conforming device of one adjustment combination that the embodiment of the present invention provides, by the characterisitic parameter of the light source of joined screen display unit, the light source characteristic parameter preset with this display unit compares, when difference when between the two meets prerequisite, the light source characteristic parameter of this display unit is adjusted, thus after combination changes light source, automatically the consistance of the whole wall of combination can be adjusted, without the need to the intervention of technician, the requirement of maintainer is reduced greatly, also reduces the operation easier that combination changes light source simultaneously.
Alternatively, in embodiments of the present invention, described sensor 301, specifically for the luminance parameter of the light source of detection display unit and the colorimetric parameter of light source.
In the present embodiment, the luminance parameter of tristimulus values sensor detection light source and the colorimetric parameter of light source is utilized.
Based on the luminance parameter of described sensor 301 specifically for the light source of detection display unit and the colorimetric parameter of light source, described controller 302 determines that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, the light source characteristic parameter of this display unit is adjusted, can be specially:
Difference between the luminance parameter of the light source preset when the luminance parameter and this display unit of determining light source is greater than the first predetermined threshold value, and/or the difference between the colorimetric parameter of the light source that the colorimetric parameter and this display unit of determining light source are preset is when being greater than the second predetermined threshold value, determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, adopt the light source characteristic parameter of approach method to this display unit to adjust.
Be understandable that, if the difference between the luminance parameter determining the light source that the luminance parameter of light source and this display unit are preset is greater than the first predetermined threshold value, can determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite; If or the difference between the colorimetric parameter determining the light source that the colorimetric parameter of light source and this display unit are preset is greater than the second predetermined threshold value, also can determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite; Or the difference between the luminance parameter determining the light source that the luminance parameter of light source and this display unit are preset is greater than the first predetermined threshold value, and the difference between the colorimetric parameter determining the light source that the colorimetric parameter of light source and this display unit are preset is when being greater than the second predetermined threshold value, also can determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite.
Separately it should be noted that, difference between the luminance parameter determining the light source that the luminance parameter of light source and this display unit are preset is greater than the first predetermined threshold value, with the difference between the colorimetric parameter determining the light source that the colorimetric parameter of light source and this display unit are preset is greater than the second predetermined threshold value, judgement can be carried out sequentially to determine, can carry out judgement to determine, the embodiment of the present invention does not do concrete restriction to this simultaneously yet.
Alternatively, described controller 302, difference between the colorimetric parameter of the light source preset at the colorimetric parameter and this display unit of determining light source is greater than the second predetermined threshold value, before also for: adopt formula S=sqrt (a Δ x^2+ Δ y^2), detect the colorimetric parameter obtaining light source; Wherein, S is the colorimetric parameter of light source, and (x, y) is light source colour coordinate, and Δ x is the difference value of current x chromaticity coordinates and default x chromaticity coordinates, and Δ y is the difference value of current y chromaticity coordinates and default y chromaticity coordinates, and sqrt is square root function, and a is weight coefficient.
Separately it should be noted that, in embodiment of the present invention, light source colour coordinate (x, y) is converted to parameter S, judge that colorimetric parameter is the need of adjustment, 2 dimensions variable (x, y) are converted to a parameter by this formula, optimize the standard of judgement.
Be understandable that, first predetermined threshold value and the second predetermined threshold value preset before replacing combination light source, in practical operation, can by the RGB characteristic of adjustment light source module, the light characteristic of light source and colorimetric properties are adjusted to the state that consistance needs, and the luminance parameter stored under this state and colorimetric parameter;
From the above, the conforming device of one adjustment combination that the embodiment of the present invention provides, by the characterisitic parameter of the light source of joined screen display unit, the light source characteristic parameter preset with this display unit compares, when difference when between the two meets prerequisite, the light source characteristic parameter of this display unit is adjusted, thus after combination changes light source, automatically the consistance of the whole wall of combination can be adjusted, without the need to the intervention of technician, the requirement of maintainer is reduced greatly, also reduces the operation easier that combination changes light source simultaneously.
Those skilled in the art can be well understood to, and for convenience and simplicity of description, the specific works process of the unit module in the device of foregoing description and device, with reference to the corresponding process in preceding method embodiment, can not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step realized in each embodiment of said method can have been come by the hardware that programmed instruction is relevant, aforesaid program can be stored in a computer read/write memory medium, comprising some instructions in order to make a computer equipment (can be personal computer, server, or the network equipment etc.) perform all or part of step of method described in each embodiment of the present invention.And aforesaid storage medium comprises: USB flash disk, portable hard drive, ROM (read-only memory) (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. various can be program code stored medium.
Above the one adjustment conforming method of combination provided by the present invention and device are described in detail, for one of ordinary skill in the art, according to the thought of the embodiment of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (3)
1. adjust the conforming method of combination, described combination is spliced by several display units, it is characterized in that, comprising:
The light source characteristic parameter of detection display unit;
When determining that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, the light source characteristic parameter of this display unit is adjusted, after changing light source to make combination, the consistance of the whole wall of adjustment combination automatically;
Described light source characteristic parameter is the luminance parameter of light source and the colorimetric parameter of light source;
Describedly determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, specifically comprise:
Difference between the luminance parameter of the light source preset when the luminance parameter and this display unit of determining light source is greater than the first predetermined threshold value, and/or the difference between the colorimetric parameter of the light source that the colorimetric parameter and this display unit of determining light source are preset is when being greater than the second predetermined threshold value, determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite;
Described determine light source colorimetric parameter and the colorimetric parameter of light source preset of this display unit between difference be greater than the second predetermined threshold value, also comprise before:
Adopt formula S=sqrt (a △ x^2+ △ y^2), obtain the colorimetric parameter of light source;
Wherein, S is the colorimetric parameter of light source, and (x, y) is light source colour coordinate, and △ x is the difference value of current x chromaticity coordinates and default x chromaticity coordinates, and △ y is the difference value sqrt of current y chromaticity coordinates and default y chromaticity coordinates is square root function, and a is weight coefficient.
2. method according to claim 1, is characterized in that, the described light source characteristic parameter to this display unit adjusts, and specifically comprises:
The light source characteristic parameter of approach method to this display unit is adopted to adjust.
3. adjust the conforming device of combination, described combination is spliced by several display units, it is characterized in that, comprising:
Sensor, for the light source characteristic parameter of detection display unit;
Controller, for when determining that the difference between light source characteristic parameter that described sensor detects and the light source characteristic parameter that this display unit is preset meets prerequisite, the light source characteristic parameter of this display unit is adjusted, after changing light source to make combination, the consistance of the whole wall of adjustment combination automatically;
Described sensor, specifically for the luminance parameter of the light source of detection display unit and the colorimetric parameter of light source;
Described controller, the first predetermined threshold value is greater than specifically for the difference between the luminance parameter determining the light source that the luminance parameter of light source and this display unit are preset, and/or the difference between the colorimetric parameter of the light source that the colorimetric parameter and this display unit of determining light source are preset is when being greater than the second predetermined threshold value, determine that the difference between the light source characteristic parameter that described light source characteristic parameter and this display unit are preset meets prerequisite, adopt the light source characteristic parameter of approach method to this display unit to adjust;
Described controller, difference between the colorimetric parameter of the light source preset at the colorimetric parameter and this display unit of determining light source is greater than the second predetermined threshold value, before also for: adopt formula S=sqrt (a △ x^2+ △ y^2), obtain the colorimetric parameter of light source; Wherein, S is the colorimetric parameter of light source, and (x, y) is light source colour coordinate, and △ x is the difference value of current x chromaticity coordinates and default x chromaticity coordinates, and △ y is the difference value of current y chromaticity coordinates and default y chromaticity coordinates, and sqrt is square root function, and a is weight coefficient.
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| CN201210260941.XA CN102750931B (en) | 2012-07-25 | 2012-07-25 | Method and device for adjusting conformity of spliced wall |
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| CN102122483A (en) * | 2010-12-22 | 2011-07-13 | 利亚德光电股份有限公司 | Method and system for monitoring LED (light-emitting diode) display screen as well as LED display |
| CN102270445A (en) * | 2010-06-07 | 2011-12-07 | 普雷斯姆股份有限公司 | Neighbourhood brightness matching for uniformity in a tiled display screen |
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| KR100645788B1 (en) * | 2005-08-26 | 2006-11-14 | 주식회사 파이컴 | Backlit device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006153914A (en) * | 2004-11-25 | 2006-06-15 | Canon Inc | Liquid crystal projector |
| CN101523990A (en) * | 2006-10-05 | 2009-09-02 | 皇家飞利浦电子股份有限公司 | Method for color transition for ambient or general illumination system |
| CN101529315A (en) * | 2006-11-07 | 2009-09-09 | Nec显示器解决方案株式会社 | Liquid crystal display device and liquid crystal display device control method |
| CN102270445A (en) * | 2010-06-07 | 2011-12-07 | 普雷斯姆股份有限公司 | Neighbourhood brightness matching for uniformity in a tiled display screen |
| CN102122483A (en) * | 2010-12-22 | 2011-07-13 | 利亚德光电股份有限公司 | Method and system for monitoring LED (light-emitting diode) display screen as well as LED display |
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