CN104658509A - Display screen correction method, device and system - Google Patents

Abstract

The embodiment of the invention discloses a display screen correction method, device and system and aims to solve the technical problems that at present, in practical application, RGB (red, green, blue) under different temperatures are inconsistent in brightness due to the influence of the environment temperature, as a result, when display screens leaving a factory simultaneously are used at places with different temperatures, the color distortion of the display screens still exists due to the different temperatures. The method disclosed by the embodiment of the invention comprises the following steps: obtaining the central measurement temperature of the central point of the display screen, obtaining a first color correction coefficient by utilizing the preset correction algorithm according to the theoretical brightness specific value and the practical brightness specific value, compensating the first color correction coefficient according to the central measurement temperature and the preset compensation method, determining the actual color correction coefficient of the display screen, and correcting the display screen according to the actual color correction coefficient.

Description

A kind of display screen bearing calibration, Apparatus and system

Technical field

The present invention relates to technical field of image processing, particularly relate to a kind of display screen bearing calibration, Apparatus and system.

Background technology

Colour correction is exactly the colour cast correcting photo and image, and colour correction is not " toning " that the individual of usual idea likes tone in sum.Therefore color correction is that look process is entangled in a kind of three primary colours RGB of optical concept and the complementation of three complementary color.Be which kind of colour cast above-mentioned must be all that large principle is carried out with neutral gray balance, such as, for current full color display, LED display, before carrying out image display, need to carry out colour correction could, carry out distortionless image on a display screen.

At present, the method for traditional colour correction is by theoretical brightness proportioning value and intrinsic brilliance proportioning value, according to formula, $\left[\begin{array}{c}{\mathrm{Lr}}_n\\ {\mathrm{Lg}}_n\\ {\mathrm{Lb}}_n\end{array}\right]=\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]\left[\begin{array}{c}{\mathrm{S\; Pr}}_n\\ {\mathrm{SPg}}_n\\ {\mathrm{SPb}}_n\end{array}\right]$ Get color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right],$ When image being shown not yet on a display screen according to color correction coefficient, just correct, thus realize the display of normal picture.

But, above-mentionedly mention by theoretical brightness proportioning value and intrinsic brilliance proportioning value, get color correction coefficient, and the design corrected when image being shown not yet on a display screen according to color correction coefficient, for in practical application, due to the impact of environment temperature, the brightness at different temperature of RGB tri-kinds of colors is inconsistent, thus, cause when the different place of temperature uses the display screen dispatched from the factory simultaneously, often easily cause display screen due to different temperature, the technical matters that color distortion situation still exists.

Summary of the invention

Embodiments provide a kind of display screen bearing calibration, Apparatus and system, solve at present in practical application, due to the impact of environment temperature, the brightness at different temperature of RGB tri-kinds of colors is inconsistent, thus, cause when the different place of temperature uses the display screen dispatched from the factory simultaneously, often easily cause display screen due to different temperature, the technical matters that color distortion situation still exists.

A kind of display screen bearing calibration provided in the embodiment of the present invention, comprising:

Get the center measuring temperature of display screen central point;

According to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

According to preset penalty method, described first color correction coefficient is compensated according to described center measuring temperature, determine the actual color correction coefficient of display screen;

According to described actual color correction coefficient, described display screen is corrected.

Preferably, the center measuring temperature getting display screen central point specifically comprises:

If display screen is mosaic display screen, then get the described center measuring temperature of the described central point of each display unit.

Preferably, described preset correcting algorithm comprises:

By theoretical brightness proportioning value and intrinsic brilliance proportioning value, according to formula, $\left[\begin{array}{c}{\mathrm{Lr}}_n\\ {\mathrm{Lg}}_n\\ {\mathrm{Lb}}_n\end{array}\right]=\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]\left[\begin{array}{c}{\mathrm{S\; Pr}}_n\\ {\mathrm{SPg}}_n\\ {\mathrm{SPb}}_n\end{array}\right]$ Get described first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right];$

Wherein, Lr _n, Lg _nand Lb _nrepresent the proportioning value of the n-th actual red LED brightness, the proportioning value of actual green LED brightness and the proportioning value of actual blue LED luminance;

SPr _n, SPg _nand SPb _nrepresent the proportioning value of the n-th theoretical red LED brightness, theoretical green LED brightness and theoretical blue led brightness.

Preferably, according to preset penalty method, described first color correction coefficient is compensated according to described center measuring temperature, determines that the actual color correction coefficient of display screen specifically comprises:

The control value corresponding with the described measuring temperature table of comparisons is extracted according to described center measuring temperature;

By described control value and described first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]$ In x1, y1 and z1 carry out being multiplied and get x1 (t), y1 (t) and z1 (t), determine that described actual color correction coefficient is $\left[\begin{array}{ccc}x1\left(t\right)& x2& x3\\ y1\left(t\right)& y2& y3\\ z1\left(t\right)& z2& z3\end{array}\right].$

Preferably, according to described actual color correction coefficient described display screen corrected and specifically comprises:

Be loaded into the correction database including described actual color correction coefficient, and original bright chroma parameter information be set and expect bright chroma parameter information;

In conjunction with described actual color correction coefficient, described original bright chroma parameter information and described expectation bright chroma parameter information, described display screen is corrected.

A kind of display screen means for correcting provided in the embodiment of the present invention, comprising:

First acquiring unit, for getting the center measuring temperature of display screen central point;

Second acquisition unit, for according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

Compensating unit, for compensating described first color correction coefficient according to preset penalty method according to described center measuring temperature, determines the actual color correction coefficient of display screen;

Correcting unit, for correcting described display screen according to described actual color correction coefficient.

Preferably, described first acquiring unit, if be mosaic display screen specifically for display screen, then gets the described center measuring temperature of the described central point of each display unit.

Preferably, described preset correcting algorithm is by theoretical brightness proportioning value and intrinsic brilliance proportioning value, according to formula, $\left[\begin{array}{c}{\mathrm{Lr}}_n\\ {\mathrm{Lg}}_n\\ {\mathrm{Lb}}_n\end{array}\right]=\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]\left[\begin{array}{c}{\mathrm{S\; Pr}}_n\\ {\mathrm{SPg}}_n\\ {\mathrm{SPb}}_n\end{array}\right]$ Get described first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right];$

Wherein, Lr _n, Lg _nand Lb _nrepresent the proportioning value of the n-th actual red LED brightness, the proportioning value of actual green LED brightness and the proportioning value of actual blue LED luminance;

SPr _n, SPg _nand SPb _nrepresent the proportioning value of the n-th theoretical red LED brightness, theoretical green LED brightness and theoretical blue led brightness;

Described preset penalty method is by described control value and described first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]$ In x1, y1 and z1 carry out being multiplied and get x1 (t), y1 (t) and z1 (t), determine that described actual color correction coefficient is $\left[\begin{array}{ccc}x1\left(t\right)& x2& x3\\ y1\left(t\right)& y2& y3\\ z1\left(t\right)& z2& z3\end{array}\right].$

Preferably, described correcting unit specifically comprises:

Add subelements, for being loaded into the correction database including described actual color correction coefficient, and original bright chroma parameter information being set and expecting bright chroma parameter information;

Syndrome unit, for correcting described display screen in conjunction with described actual color correction coefficient, described original bright chroma parameter information and described expectation bright chroma parameter information.

A kind of display screen correction system provided in the embodiment of the present invention, comprising:

Display screen, temperature-sensitive sticker, and as mention in the present embodiment any one as described in display screen means for correcting;

Described temperature-sensitive sticker is arranged on described display screen, at the described display screen back side or front, the center measuring temperature of the described display screen central point sensed is sent to described display screen means for correcting for passing through;

Described display screen, described temperature-sensitive sticker is connected with described display screen means for correcting respectively;

Wherein, described display screen means for correcting comprises:

First acquiring unit, for getting the center measuring temperature of display screen central point;

Second acquisition unit, for according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

Compensating unit, for compensating described first color correction coefficient according to preset penalty method according to described center measuring temperature, determines the actual color correction coefficient of display screen;

Correcting unit, for correcting described display screen according to described actual color correction coefficient.

As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages:

A kind of display screen bearing calibration provided in the embodiment of the present invention, Apparatus and system, wherein, bearing calibration comprises: the center measuring temperature getting display screen central point; According to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient; According to preset penalty method, the first color correction coefficient is compensated according to center measuring temperature, determine the actual color correction coefficient of display screen; According to actual color correction coefficient, display screen is corrected.In the present embodiment, by first getting the center measuring temperature of display screen central point, and the first color correction coefficient calculated at a constant temperature, first color correction coefficient is compensated according to preset penalty method according to center measuring temperature, determine the actual color correction coefficient of display screen, finally according to actual color correction coefficient, display screen is corrected, just achieve, based at varying environment temperature, dynamic color regulation is carried out to display screen, without the need to worrying the difference of temperature variation and causing the color distortion of display screen, solve at present by theoretical brightness proportioning value and intrinsic brilliance proportioning value, get color correction coefficient, and the design corrected when image being shown not yet on a display screen according to color correction coefficient, for in practical application, due to the impact of environment temperature, the brightness at different temperature of RGB tri-kinds of colors is inconsistent, thus, cause when the different place of temperature uses the display screen dispatched from the factory simultaneously, often easily cause display screen due to different temperature, the technical matters that color distortion situation still exists.

Accompanying drawing explanation

In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art 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.

A kind of schematic flow sheet of an embodiment of display screen bearing calibration of Fig. 1 for providing in the embodiment of the present invention;

A kind of schematic flow sheet of another embodiment of display screen bearing calibration of Fig. 2 for providing in the embodiment of the present invention;

A kind of structural representation of an embodiment of display screen means for correcting of Fig. 3 for providing in the embodiment of the present invention;

A kind of structural representation of another embodiment of display screen means for correcting of Fig. 4 for providing in the embodiment of the present invention;

A kind of structural representation of an embodiment of display screen correction system of Fig. 5 for providing in the embodiment of the present invention.

Embodiment

Embodiments provide a kind of display screen bearing calibration, Apparatus and system, solve at present in practical application, due to the impact of environment temperature, the brightness at different temperature of RGB tri-kinds of colors is inconsistent, thus, cause when the different place of temperature uses the display screen dispatched from the factory simultaneously, often easily cause display screen due to different temperature, the technical matters that color distortion situation still exists.

For making goal of the invention of the present invention, feature, advantage can be more obvious and understandable, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, the embodiments described below are only the present invention's part embodiments, and the embodiment of not all.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.

Refer to Fig. 1, an embodiment of a kind of display screen bearing calibration provided in the embodiment of the present invention comprises:

101, the center measuring temperature of display screen central point is got;

In the present embodiment, when needs are to display screen, such as LED display, LED mosaic display screen, when carrying out colour correction, need the center measuring temperature getting display screen central point, it should be noted that, the aforesaid center measuring temperature getting display screen central point, can be by the central point of temperature-sensitive sticker for display screen, measure, can be from display screen front, also or the back side measures, specifically do not limit herein.

102, according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

After the center measuring temperature getting display screen central point, need according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient, be understandable that, aforesaid preset correcting algorithm will be described in detail in subsequent embodiment, repeat no more herein.

103, according to preset penalty method, the first color correction coefficient is compensated according to center measuring temperature, determine the actual color correction coefficient of display screen;

When according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, after obtaining the first color correction coefficient, need to compensate the first color correction coefficient according to preset penalty method according to center measuring temperature, determine the actual color correction coefficient of display screen.

It should be noted that, aforesaidly according to preset penalty method, the first color correction coefficient to be compensated, determine that the actual color correction coefficient of display screen will be described in detail in subsequent embodiment, just repeat no more herein.

104, according to actual color correction coefficient, display screen is corrected.

When compensating the first color correction coefficient according to preset penalty method according to center measuring temperature, after determining the actual color correction coefficient of display screen, need to correct display screen according to actual color correction coefficient.

In the present embodiment, by first getting the center measuring temperature of display screen central point, and the first color correction coefficient calculated at a constant temperature, first color correction coefficient is compensated according to preset penalty method according to center measuring temperature, determine the actual color correction coefficient of display screen, finally according to actual color correction coefficient, display screen is corrected, just achieve, based at varying environment temperature, dynamic color regulation is carried out to display screen, without the need to worrying the difference of temperature variation and causing the color distortion of display screen, solve at present by theoretical brightness proportioning value and intrinsic brilliance proportioning value, get color correction coefficient, and the design corrected when image being shown not yet on a display screen according to color correction coefficient, for in practical application, due to the impact of environment temperature, the brightness at different temperature of RGB tri-kinds of colors is inconsistent, thus, cause when the different place of temperature uses the display screen dispatched from the factory simultaneously, often easily cause display screen due to different temperature, the technical matters that color distortion situation still exists.

The above is described in detail the process that display screen corrects, be described in detail to the process compensated the first color correction coefficient below, refer to Fig. 2, another embodiment of a kind of display screen bearing calibration provided in the embodiment of the present invention comprises:

201, the center measuring temperature of display screen central point is got;

In the present embodiment, when needs are to display screen, such as LED display, LED mosaic display screen, when carrying out colour correction, need the center measuring temperature getting display screen central point, it should be noted that, the aforesaid center measuring temperature getting display screen central point, can be by the central point of temperature-sensitive sticker for display screen, measure, can be from display screen front, also or the back side measures, specifically do not limit herein.

Should be noted that, such as, if aforesaid display screen mosaic display screen, LED mosaic display screen, then get the center measuring temperature of the central point of each display unit.

202, according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

After the center measuring temperature getting display screen central point, to need according to theoretical brightness proportioning value and intrinsic brilliance proportioning value, according to preset correcting algorithm, to obtain the first color correction coefficient.

It should be noted that, aforesaid preset correcting algorithm comprises:

By theoretical brightness proportioning value and intrinsic brilliance proportioning value, according to formula, $\left[\begin{array}{c}{\mathrm{Lr}}_n\\ {\mathrm{Lg}}_n\\ {\mathrm{Lb}}_n\end{array}\right]=\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]\left[\begin{array}{c}{\mathrm{S\; Pr}}_n\\ {\mathrm{SPg}}_n\\ {\mathrm{SPb}}_n\end{array}\right]$ Get the first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right];$

Wherein, Lr _n, Lg _nand Lb _nrepresent the proportioning value of the n-th actual red LED brightness, the proportioning value of actual green LED brightness and the proportioning value of actual blue LED luminance;

SPr _n, SPg _nand SPb _nrepresent the proportioning value of the n-th theoretical red LED brightness, theoretical green LED brightness and theoretical blue led brightness.

Be understandable that, aforesaid n, if can be such as, when display screen mosaic display screen, LED mosaic display screen, then get the expression of the n-th display unit.

203, the control value corresponding with the measuring temperature table of comparisons is extracted according to center measuring temperature;

When according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, after obtaining the first color correction coefficient, need to extract the control value corresponding with the measuring temperature table of comparisons according to center measuring temperature, be understandable that, the aforesaid measuring temperature table of comparisons can be the parameter information that dispatches from the factory for LED chip, is no longer described in detail herein.

204, according to control value, the first color correction coefficient is compensated, determine the actual color correction coefficient of display screen;

After extracting the control value corresponding with the measuring temperature table of comparisons according to center measuring temperature, need to compensate the first color correction coefficient according to control value, determine the actual color correction coefficient of display screen, be control value and the first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]$ In x1, y1 and z1 carry out being multiplied and get x1 (t), y1 (t) and z1 (t), determine that actual color correction coefficient is $\left[\begin{array}{ccc}x1\left(t\right)& x2& x3\\ y1\left(t\right)& y2& y3\\ z1\left(t\right)& z2& z3\end{array}\right].$

205, be loaded into the correction database including actual color correction coefficient, and original bright chroma parameter information be set and expect bright chroma parameter information;

When compensating the first color correction coefficient according to control value, after determining the actual color correction coefficient of display screen, need to be loaded into the correction database including actual color correction coefficient, and original bright chroma parameter information is set and expects bright chroma parameter information, it should be noted that, aforesaid original bright chroma parameter information is set and expects bright chroma parameter information before also need to arrange the display screen parameter information that needs show.

206, in conjunction with actual color correction coefficient, original bright chroma parameter information and expectation bright chroma parameter information, display screen is corrected.

When being loaded into the correction database including actual color correction coefficient, and after original bright chroma parameter information being set and expecting bright chroma parameter information, need in conjunction with actual color correction coefficient, original bright chroma parameter information and expect that bright chroma parameter information corrects display screen.

Be understandable that, step 205 and 206 can be realized by correction software.

In the present embodiment, by first getting the center measuring temperature of display screen central point, and the first color correction coefficient calculated at a constant temperature, the control value corresponding with the measuring temperature table of comparisons is extracted according to center measuring temperature, and according to control value, the first color correction coefficient is compensated, determine the actual color correction coefficient of display screen, determine the actual color correction coefficient of display screen, finally according to actual color correction coefficient, display screen is corrected, just achieve, based at varying environment temperature, dynamic color regulation is carried out to display screen, without the need to worrying the difference of temperature variation and causing the color distortion of display screen, solve at present by theoretical brightness proportioning value and intrinsic brilliance proportioning value, get color correction coefficient, and the design corrected when image being shown not yet on a display screen according to color correction coefficient, for in practical application, due to the impact of environment temperature, the brightness at different temperature of RGB tri-kinds of colors is inconsistent, thus, cause when the different place of temperature uses the display screen dispatched from the factory simultaneously, often easily cause display screen due to different temperature, the technical matters that color distortion situation still exists.

Refer to Fig. 3, an embodiment of a kind of display screen means for correcting provided in the embodiment of the present invention comprises:

First acquiring unit 301, for getting the center measuring temperature of display screen central point;

Second acquisition unit 302, for according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

Compensating unit 303, for compensating the first color correction coefficient according to preset penalty method according to center measuring temperature, determines the actual color correction coefficient of display screen;

Correcting unit 304, for correcting display screen according to actual color correction coefficient.

In the present embodiment, the center measuring temperature of display screen central point is first got by the first acquiring unit 301, second acquisition unit 302 calculates the first color correction coefficient at a constant temperature, compensating unit 303 compensates the first color correction coefficient according to preset penalty method according to center measuring temperature, determine the actual color correction coefficient of display screen, finally according to actual color correction coefficient, display screen is corrected, just achieve, based at varying environment temperature, dynamic color regulation is carried out to display screen, without the need to worrying the difference of temperature variation and causing the color distortion of display screen, solve at present by theoretical brightness proportioning value and intrinsic brilliance proportioning value, get color correction coefficient, and the design corrected when image being shown not yet on a display screen according to color correction coefficient, for in practical application, due to the impact of environment temperature, the brightness at different temperature of RGB tri-kinds of colors is inconsistent, thus, cause when the different place of temperature uses the display screen dispatched from the factory simultaneously, often easily cause display screen due to different temperature, the technical matters that color distortion situation still exists.

The above is described in detail each unit of display screen means for correcting, will be described in detail below, and refer to Fig. 4 to preset penalty method and each subelement, and another embodiment of a kind of display screen means for correcting provided in the embodiment of the present invention comprises:

First acquiring unit 401, for getting the center measuring temperature of display screen central point;

Second acquisition unit 402, for according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

Compensating unit 403, for compensating the first color correction coefficient according to preset penalty method according to center measuring temperature, determines the actual color correction coefficient of display screen;

It should be noted that, aforesaid preset correcting algorithm is by theoretical brightness proportioning value and intrinsic brilliance proportioning value, according to formula, $\left[\begin{array}{c}{\mathrm{Lr}}_n\\ {\mathrm{Lg}}_n\\ {\mathrm{Lb}}_n\end{array}\right]=\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]\left[\begin{array}{c}{\mathrm{S\; Pr}}_n\\ {\mathrm{SPg}}_n\\ {\mathrm{SPb}}_n\end{array}\right]$ Get the first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right];$

Wherein, Lr _n, Lg _nand Lb _nrepresent the proportioning value of the n-th actual red LED brightness, the proportioning value of actual green LED brightness and the proportioning value of actual blue LED luminance;

SPr _n, SPg _nand SPb _nrepresent the proportioning value of the n-th theoretical red LED brightness, theoretical green LED brightness and theoretical blue led brightness;

Aforesaid preset penalty method is by control value and the first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]$ In x1, y1 and z1 carry out being multiplied and get x1 (t), y1 (t) and z1 (t), determine that actual color correction coefficient is $\left[\begin{array}{ccc}x1\left(t\right)& x2& x3\\ y1\left(t\right)& y2& y3\\ z1\left(t\right)& z2& z3\end{array}\right].$

Correcting unit 404, for correcting display screen according to actual color correction coefficient.

Wherein, correcting unit 404 can further include:

Add subelements 4041, for being loaded into the correction database including actual color correction coefficient, and original bright chroma parameter information being set and expecting bright chroma parameter information;

Syndrome unit 4042, for correcting display screen in conjunction with actual color correction coefficient, original bright chroma parameter information and expectation bright chroma parameter information.

In the present embodiment, first acquiring unit 401 is by first getting the center measuring temperature of display screen central point, second acquisition unit 402 calculates the first color correction coefficient at a constant temperature, compensating unit 403 extracts the control value corresponding with the measuring temperature table of comparisons according to center measuring temperature, and according to control value, the first color correction coefficient is compensated, determine the actual color correction coefficient of display screen, determine the actual color correction coefficient of display screen, finally according to actual color correction coefficient, display screen is corrected, just achieve, based at varying environment temperature, dynamic color regulation is carried out to display screen, without the need to worrying the difference of temperature variation and causing the color distortion of display screen, solve at present by theoretical brightness proportioning value and intrinsic brilliance proportioning value, get color correction coefficient, and the design corrected when image being shown not yet on a display screen according to color correction coefficient, for in practical application, due to the impact of environment temperature, the brightness at different temperature of RGB tri-kinds of colors is inconsistent, thus, cause when the different place of temperature uses the display screen dispatched from the factory simultaneously, often easily cause display screen due to different temperature, the technical matters that color distortion situation still exists.

Refer to Fig. 5, an embodiment of a kind of display screen correction system provided in the embodiment of the present invention comprises:

Display screen 51, temperature-sensitive sticker 52, and the display screen means for correcting 53 mentioned in the embodiment shown in Fig. 3 and Fig. 4, it should be noted that, aforesaid display screen 51 can be mosaic display screen further, such as LED mosaic display screen;

Temperature-sensitive sticker 52 is arranged on display screen 51, at display screen 51 back side or front, the center measuring temperature of display screen 51 central point sensed is sent to display screen means for correcting 53 for passing through;

Display screen 51, temperature-sensitive sticker 52 is connected with display screen means for correcting 53 respectively, and this connected mode can be that cable network connects, and can also be that wireless network connects, specifically not limit herein;

Wherein, display screen means for correcting 51 comprises:

First acquiring unit 511, for getting the center measuring temperature of display screen central point;

Second acquisition unit 512, for according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

Compensating unit 513, for compensating the first color correction coefficient according to preset penalty method according to center measuring temperature, determines the actual color correction coefficient of display screen;

Correcting unit 514, for correcting display screen according to actual color correction coefficient.

It should be noted that, a kind of display screen correction system provided in the embodiment of the present invention can also be aforesaid preset correcting algorithm is further by theoretical brightness proportioning value and intrinsic brilliance proportioning value, according to formula, $\left[\begin{array}{c}{\mathrm{Lr}}_n\\ {\mathrm{Lg}}_n\\ {\mathrm{Lb}}_n\end{array}\right]=\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]\left[\begin{array}{c}{\mathrm{S\; Pr}}_n\\ {\mathrm{SPg}}_n\\ {\mathrm{SPb}}_n\end{array}\right]$ Get the first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right];$

Wherein, Lr _n, Lg _nand Lb _nrepresent the proportioning value of the n-th actual red LED brightness, the proportioning value of actual green LED brightness and the proportioning value of actual blue LED luminance;

SPr _n, SPg _nand SPb _nrepresent the proportioning value of the n-th theoretical red LED brightness, theoretical green LED brightness and theoretical blue led brightness;

Aforesaid preset penalty method is by control value and the first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]$ In x1, y1 and z1 carry out being multiplied and get x1 (t), y1 (t) and z1 (t), determine that actual color correction coefficient is $\left[\begin{array}{ccc}x1\left(t\right)& x2& x3\\ y1\left(t\right)& y2& y3\\ z1\left(t\right)& z2& z3\end{array}\right].$

The present embodiment, achieve, based at varying environment temperature, dynamic color regulation is carried out to display screen, without the need to worrying the difference of temperature variation and causing the color distortion of display screen, solve at present by theoretical brightness proportioning value and intrinsic brilliance proportioning value, get color correction coefficient, and the design corrected when image being shown not yet on a display screen according to color correction coefficient, for in practical application, due to the impact of environment temperature, the brightness at different temperature of RGB tri-kinds of colors is inconsistent, thus, cause when the different place of temperature uses the display screen dispatched from the factory simultaneously, often easily cause display screen due to different temperature, the technical matters that color distortion situation still exists.

Those skilled in the art can be well understood to, and for convenience and simplicity of description, the system of foregoing description, the specific works process of device and unit, with reference to the corresponding process in preceding method embodiment, can not repeat them here.

In several embodiments that the application provides, should be understood that, disclosed system, apparatus and method, can realize by another way.Such as, device embodiment described above is only schematic, such as, the division of described unit, be only a kind of logic function to divide, actual can have other dividing mode when realizing, such as multiple unit or assembly can in conjunction with or another system can be integrated into, or some features can be ignored, or do not perform.Another point, shown or discussed coupling each other or direct-coupling or communication connection can be by some interfaces, and the indirect coupling of device or unit or communication connection can be electrical, machinery or other form.

The described unit illustrated as separating component or can may not be and physically separates, and the parts as unit display can be or may not be physical location, namely can be positioned at a place, or also can be distributed in multiple network element.Some or all of unit wherein can be selected according to the actual needs to realize the object of the present embodiment scheme.

In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, also can be that the independent physics of unit exists, also can two or more unit in a unit integrated.Above-mentioned integrated unit both can adopt the form of hardware to realize, and the form of SFU software functional unit also can be adopted to realize.

If described integrated unit using the form of SFU software functional unit realize and as independently production marketing or use time, can be stored in a computer read/write memory medium.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words or all or part of of this technical scheme can embody with the form of software product, this computer software product is stored in a storage 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.

The above, above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (10)

1. a display screen bearing calibration, is characterized in that, comprising:

Get the center measuring temperature of display screen central point;

According to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

According to preset penalty method, described first color correction coefficient is compensated according to described center measuring temperature, determine the actual color correction coefficient of display screen;

According to described actual color correction coefficient, described display screen is corrected.

2. display screen bearing calibration according to claim 1, is characterized in that, the center measuring temperature getting display screen central point specifically comprises:

If display screen is mosaic display screen, then get the described center measuring temperature of the described central point of each display unit.

3. display screen bearing calibration according to claim 1 and 2, is characterized in that, described preset correcting algorithm comprises:

By theoretical brightness proportioning value and intrinsic brilliance proportioning value, according to formula, $\left[\begin{array}{c}{\mathrm{Lr}}_n\\ {\mathrm{Lg}}_n\\ {\mathrm{Lb}}_n\end{array}\right]=\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]\left[\begin{array}{c}{\mathrm{SPr}}_n\\ {\mathrm{SPg}}_n\\ {\mathrm{SPb}}_n\end{array}\right]$ Get described first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right];$

Wherein, Lr _n, Lg _nand Lb _nrepresent the proportioning value of the n-th actual red LED brightness, the proportioning value of actual green LED brightness and the proportioning value of actual blue LED luminance;

SPr _n, SPg _nand SPb _nrepresent the proportioning value of the n-th theoretical red LED brightness, theoretical green LED brightness and theoretical blue led brightness.

4. display screen bearing calibration according to claim 3, is characterized in that, compensates according to preset penalty method according to described center measuring temperature to described first color correction coefficient, determines that the actual color correction coefficient of display screen specifically comprises:

The control value corresponding with the described measuring temperature table of comparisons is extracted according to described center measuring temperature;

By described control value and described first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]$ In x1, y1 and z1 carry out being multiplied and get x1 (t), y1 (t) and z1 (t), determine that described actual color correction coefficient is

$\left[\begin{array}{ccc}x1\left(t\right)& x2& x3\\ y1\left(t\right)& y2& y3\\ z1\left(t\right)& z2& z3\end{array}\right].$

5. display screen bearing calibration according to claim 4, is characterized in that, to correct specifically comprise according to described actual color correction coefficient to described display screen:

Be loaded into the correction database including described actual color correction coefficient, and original bright chroma parameter information be set and expect bright chroma parameter information;

In conjunction with described actual color correction coefficient, described original bright chroma parameter information and described expectation bright chroma parameter information, described display screen is corrected.

6. a display screen means for correcting, is characterized in that, comprising:

First acquiring unit, for getting the center measuring temperature of display screen central point;

Second acquisition unit, for according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

Compensating unit, for compensating described first color correction coefficient according to preset penalty method according to described center measuring temperature, determines the actual color correction coefficient of display screen;

Correcting unit, for correcting described display screen according to described actual color correction coefficient.

7. display screen means for correcting according to claim 6, is characterized in that, described first acquiring unit, if be mosaic display screen specifically for display screen, then gets the described center measuring temperature of the described central point of each display unit.

8. the display screen means for correcting according to claim 6 or 7, is characterized in that,

Described preset correcting algorithm is by theoretical brightness proportioning value and intrinsic brilliance proportioning value, according to formula, $\left[\begin{array}{c}{\mathrm{Lr}}_n\\ {\mathrm{Lg}}_n\\ {\mathrm{Lb}}_n\end{array}\right]=\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]\left[\begin{array}{c}{\mathrm{SPr}}_n\\ {\mathrm{SPg}}_n\\ {\mathrm{SPb}}_n\end{array}\right]$ Get described first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right];$

Wherein, Lr _n, Lg _nand Lb _nrepresent the proportioning value of the n-th actual red LED brightness, the proportioning value of actual green LED brightness and the proportioning value of actual blue LED luminance;

SPr _n, SPg _nand SPb _nrepresent the proportioning value of the n-th theoretical red LED brightness, theoretical green LED brightness and theoretical blue led brightness;

Described preset penalty method is by described control value and described first color correction coefficient $\left[\begin{array}{ccc}x1& x2& x3\\ y1& y2& y3\\ z1& z2& z3\end{array}\right]$ In x1, y1 and z1 carry out being multiplied and get x1 (t), y1 (t) and z1 (t), determine that described actual color correction coefficient is $\left[\begin{array}{ccc}x1\left(t\right)& x2& x3\\ y1\left(t\right)& y2& y3\\ z1\left(t\right)& z2& z3\end{array}\right].$

9. display screen means for correcting according to claim 8, is characterized in that, described correcting unit specifically comprises:

Add subelements, for being loaded into the correction database including described actual color correction coefficient, and original bright chroma parameter information being set and expecting bright chroma parameter information;

Syndrome unit, for correcting described display screen in conjunction with described actual color correction coefficient, described original bright chroma parameter information and described expectation bright chroma parameter information.

10. a display screen correction system, is characterized in that, comprising:

Display screen, temperature-sensitive sticker, and as display screen means for correcting as described in any one in claim 6 to 9;

Described temperature-sensitive sticker is arranged on described display screen, at the described display screen back side or front, the center measuring temperature of the described display screen central point sensed is sent to described display screen means for correcting for passing through;

Described display screen, described temperature-sensitive sticker is connected with described display screen means for correcting respectively;

Wherein, described display screen means for correcting comprises:

First acquiring unit, for getting the center measuring temperature of display screen central point;

Second acquisition unit, for according to theoretical brightness proportioning value and intrinsic brilliance proportioning value according to preset correcting algorithm, obtain the first color correction coefficient;

Compensating unit, for compensating described first color correction coefficient according to preset penalty method according to described center measuring temperature, determines the actual color correction coefficient of display screen;

Correcting unit, for correcting described display screen according to described actual color correction coefficient.