CN201718003U - Device demonstrating color range of television - Google Patents

Abstract

The utility model provides a device demonstrating a color range of a television, which comprises a signal acquisition module and a color gamut display module. The signal acquisition module is used for collecting information on a pixel dot in an input signal; and the color gamut display module is connected with the signal acquisition module and is used for analyzing the information on the pixel dot, calculating the position of the pixel dot on a color gamut chart and displaying the position of the pixel dot on the color gamut chart through a cursor. The signal acquisition module comprises a setting module, a register and a reading module; wherein the setting module is used for setting the position of the pixel dot in the input signal and writing the position into the register; the register is used for storing the position of the pixel dot and converting the position into an RGB component value through color space; and the reading module is used for reading the RGB component value in the register. The utility model demonstrates the advantages of the color gamut television in the restoration of real image colors through the direct color gamut chart, thereby facilitating promotion and application of the television with the wide color gamut.

Description

The device of demonstration television set gamut range

[technical field]

The utility model belongs to technical field of television sets, relates in particular to a kind of device of demonstrating the television set gamut range.

[background technology]

Exist colour gamut to show unfavorable shortcoming at the CCFL backlight technology, LCD manufacturer is devoted to improve the effect of LCD of new generation on color shows always.The mode that promotes the wide colour gamut of LCD at present mainly is to increase the primary colors number or use more advanced backlight technology instead.

Because condition restriction can't allow LCD TV color expression range enlarge significantly, so part manufacturer has been put into sight on the LED-backlit technology.The English full name of LED is Light-Emitting-Diode, and Chinese is light-emitting diode, is a kind of electric current forward to be led to the semiconductor PN place and luminous device.The most significant advantage of LED is to have better colour gamut, and it is backlight that color representation power is better than cold-cathode fluorescence lamp, can play the effect that well remedies to the liquid crystal technology of display color lazy weight.At present the gamut range in LED-backlit source even surpass the Adobe RGB and the NTSC color standard of highest ranking makes LCD show and can have supereminent color representation.Compare with the NTSC specification, adopt the LCD television color gamut scope of LED-backlit generally can reach its 105%.Common LCD TV can only reach common gamut range, and adopts the LCD TV of LED-backlit can reach true color territory scope.Wide colour gamut technology constantly advances, and gamut range and full gamut that TV shows will be more and more approaching.

But because this notion of colour gamut is more abstract, the consumer often can't understand this television set intuitively from television set itself and show the gamut range that can cover, and therefore also just can't embody the advantage of wide colour gamut TV on showing, is unfavorable for the popularization of product.

[utility model content]

The purpose of this utility model is to provide a kind of device of demonstrating the television set gamut range, is intended to solve the problem that is difficult to intuitively present the television set gamut range in the prior art, is beneficial to the popularization of wide colour gamut television set.

The utility model is achieved in that a kind of device of demonstrating the television set gamut range comprises:

The signal acquisition module of gathering the information of pixel in the input signal with link to each other with described signal acquisition module, information to described pixel is analyzed, calculate the position of this pixel on gamut map, the colour gamut display module that on gamut map, shows by cursor.

Wherein, described signal acquisition module comprises:

The position of pixel in the input signal is set, this position is write the module that is provided with of register; Preserve the position of described pixel, and through color space conversion be the register and the read module that reads RGB component value in the described register of the value of RGB component according to this position:

Described register links to each other with described read module with the described module that is provided with.

Preferably, described signal acquisition module also further is included in the labeling module that marks the pixel of being gathered on the liquid crystal display screen, and this labeling module links to each other with the described module that is provided with.

Wherein, described signal acquisition module comprises:

The RGB component that obtains according to above-mentioned signal acquisition module calculates the computing module that each component accounts for the relative scale of RGB total amount;

With link to each other with computing module, according to the original position and the length of side of gamut map above-mentioned relative scale is converted to the physical location of this pixel in gamut map, and the display module that this physical location is shown by cursor.

As can be seen from the above technical solutions, the utility model is gathered the information of input pixel signal point, calculate the position of this pixel on gamut map by analysis, show on gamut map by cursor then, represent the advantage of colour gamut television set on true reduction image color with the form of gamut map intuitively, helped the promotion and application of wide colour gamut television set.

[description of drawings]

Fig. 1 is a structured flowchart of the present utility model;

Fig. 2 is the schematic diagram of gamut map in the utility model.

[embodiment]

In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.

As shown in Figure 1, the utility model generally comprises signal acquisition module and colour gamut display module: signal acquisition module is mainly used in gathers the information of a certain pixel of input signal; The colour gamut display module links to each other with signal acquisition module, is used for the information of the pixel of above-mentioned collection is analyzed, and calculates the position of this pixel on gamut map, shows on gamut map by cursor.The colour gamut display module also is used to show the ratio of value of the RGB of the value of above-mentioned pixel RGB component and full gamut, and this ratio can show below gamut map, also can show in other place.

In concrete implementation process, signal acquisition module generally can comprise module, register and read module are set: the position that module is used for being provided with a certain target pixel points of input signal is set, and this position is write the register of microprocessor.Register with module be set link to each other, generally have 6, be used to preserve the position of above-mentioned target pixel points, be the value of three components of RGB according to this position through color space conversion.Read module links to each other with register, is used for reading the value of register pixel through three components of RGB after the color space conversion.Signal acquisition module can further include labeling module, this labeling module with module be set link to each other, be used on liquid crystal display screen, marking the pixel of being gathered, its mark mode can adopt the mode of tracking cross mark.

In concrete implementation process, the colour gamut display module generally can comprise computing module and display module: the RGB component that computing module is used for obtaining according to above-mentioned signal acquisition module calculates the relative scale that each component accounts for the RGB total amount

Display module links to each other with computing module, is used for according to the original position and the length of side of gamut map above-mentioned relative scale being converted to the physical location of this pixel in gamut map, and by cursor this physical location is shown.

In above-mentioned display module, adopted the maxwellmeter color triangle in the gamut map.Physical location is performed such definite: as shown in Figure 2, mix each colour allot all in color triangle by the three primary colors addition, equilateral triangle fix a point the contrast vertical line length be 1, three fixed points are represented R, G, B three primary colors (a unit red primaries, a unit green primary color, a unit blue primary) respectively.In triangle the colored left side r of arbitrfary point F correspondence, g, b for to R, G, B opposite side apart from r+g+b=1.Chromaticity coordinate r and g are respectively R and the relative scale of G in the R+G+B total amount.In the triangle gamut map, there is not the coordinate of b, because r+g+b=1, b=1-r-g provides two coordinates of r and g, b has just determined.In this gamut map, the chromaticity coordinate of standard white light is: r=0.33, g=0.33.Certainly, corresponding, persons skilled in the art should be appreciated that and also can only provide the coordinate of g, b or the coordinate of r, b that its principle all is the same.Further, the utility model has adopted the maxwellmeter color triangle, greatly reduces the difficulty of computational analysis.

At present still there is not a kind of technology can go back the true colors of original image fully, when showing, always have distortion to a certain degree, the rgb value of output and input has certain ratio row relation: RGB (OUT)=N%*RGB (IN), this coefficient N has just determined to show and can reach gamut range, when this value more near 1 the time, show that colour gamut and full gamut are just approaching more.

The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model claim.Should be pointed out that for the person of ordinary skill of the art under the prerequisite that does not break away from the utility model design, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims (4)

1. a device of demonstrating the television set gamut range is characterized in that, comprising:

The signal acquisition module of gathering the information of pixel in the input signal with link to each other with described signal acquisition module, information to described pixel is analyzed, calculate the position of this pixel on gamut map, the colour gamut display module that on gamut map, shows by cursor.

2. the device of demonstration television set gamut range according to claim 1 is characterized in that, described signal acquisition module comprises:

The position of pixel in the input signal is set, this position is write the module that is provided with of register; Preserve the position of described pixel, and through color space conversion be the register and the read module that reads RGB component value in the described register of the value of RGB component according to this position:

Described register links to each other with described read module with the described module that is provided with.

3. the device of demonstration television set gamut range according to claim 2 is characterized in that, described signal acquisition module also further is included in the labeling module that marks the pixel of being gathered on the liquid crystal display screen, and this labeling module links to each other with the described module that is provided with.

4. the device of demonstration television set gamut range according to claim 1 is characterized in that, described signal acquisition module comprises:

The RGB component that obtains according to above-mentioned signal acquisition module calculates the computing module that each component accounts for the relative scale of RGB total amount;

With link to each other with computing module, according to the original position and the length of side of gamut map above-mentioned relative scale is converted to the physical location of this pixel in gamut map, and the display module that this physical location is shown by cursor.

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