CN103674495A - Display panel color gamut value testing system - Google Patents
Display panel color gamut value testing system Download PDFInfo
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- CN103674495A CN103674495A CN201310706277.1A CN201310706277A CN103674495A CN 103674495 A CN103674495 A CN 103674495A CN 201310706277 A CN201310706277 A CN 201310706277A CN 103674495 A CN103674495 A CN 103674495A
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Abstract
The invention discloses a display panel color gamut value testing system which comprises a data processing device, a data acquisition device, a first data transmission line and a second data transmission line. The first data transmission line is used for connecting the data processing device and a to-be-tested display panel, the second data transmission line is used for connecting the data processing device and the data acquisition device, the data processing device sends testing signals to the to-be-tested display panel to enable the to-be-tested display panel to display specified primary color pictures, and the data acquisition device collects color coordinates of the primary color pictures and sends the color coordinates to the data processing device to generate color gamut values through calculation. The display panel color gamut value testing system has the advantages that the to-be-tested display panel is controlled to display the specified pictures, the color coordinates of the primary color pictures are collected and sent to the data processing device, the color gamut value of the to-be-tested display panel is calculated according to the color coordinates, unartificial color gamut value testing on the to-be-tested display panel is achieved, the error probability is reduced, and efficiency is improved.
Description
Technical field
The present invention relates to display technique field, relate in particular to a kind of display panel colour gamut value test macro.
Background technology
Flat-panel monitor is due to its feature such as light, thin, low in energy consumption, by people, accepted extensively, Thin Film Transistor-LCD (Thin Film Transistor Liquid Crystal Display for example, TFT-LCD), or active light emitting diode indicator (Organic Light Emitting Diode, OLED).
In the production run of flat-panel monitor, in order to guarantee the yield of display panel, need to test display panel multifrequency nature, for example the homogeneity of abnormal, the bright dim spot of color lump, colourity, brightness, contrast, colour gamut, reaction time etc.Wherein, colour gamut (Color Gamut) is the chromatic characteristic of outbalance, and colour gamut refers to the scope region that number of colors that certain display device can be expressed forms, and the summit of figure that colour gamut forms is the chromaticity coordinates of a plurality of primary colours that form this colour gamut.The normal test mode adopting is manual type at present, and whether the colour gamut value that staff observes in display panel procedure for displaying by optical instrument is less than predetermined threshold value, judges that whether display panel is qualified.But manual testing is the efficiency that waste of manpower affects again product development and production, and be limited to subjective factor, the probability that test makes mistakes is larger.
Summary of the invention
The object of this invention is to provide a kind of display panel colour gamut value test macro, solving manual testing's waste of manpower, efficiency is low and the problem of easily makeing mistakes.
The object of the invention is to be achieved through the following technical solutions:
The embodiment of the present invention provides a kind of display panel colour gamut value test macro, comprising: data processing equipment, data collector, first data transmission line and the second data line; Wherein,
Described first data transmission line is used for connecting described data processing equipment and display panel to be tested;
Described the second data line is used for connecting described data processing equipment and described data collector; Described data processing equipment sends test massage and makes described display panel to be tested show the primary colours picture of regulation to described display panel to be tested;
Described data collector gathers the chromaticity coordinates that described primary colours face is drawn, and sends to data processing equipment to calculate generation colour gamut value.
In the present embodiment, data processing equipment is controlled the picture that display panel to be measured shows regulation, make data collector gather the chromaticity coordinates of primary colours face picture and send data processing equipment, and then data processing equipment calculates the colour gamut value that chromaticity coordinates that this primary colours face draws obtains this display panel to be measured, realization is to the unartificial colour gamut value test of display panel to be tested, reduce error probability, and improved efficiency.
Preferably, the chromaticity coordinates that described primary colours face is drawn comprises the chromaticity coordinates of the chromaticity coordinates of red primary picture central point, the chromaticity coordinates of green primary picture central point and blue primary picture central point.
Preferably, the chromaticity coordinates that described data processing equipment is drawn described primary colours face calculates and generates colour gamut value, comprising:
According to the chromaticity coordinates of red, green and blue primary colours picture central point, calculate gamut area;
According to described gamut area, calculate described colour gamut value.
Preferably, the described chromaticity coordinates according to red primary, green primary and blue primary picture central point calculates the formula of gamut area, comprising:
S=[(U
r-U
b)(V
g-V
b)-(U
g-U
b)(V
r-V
b)]/2
Wherein, S is gamut area, (U
r, V
r) be the chromaticity coordinates of red primary picture central point, (U
g, V
g) be the chromaticity coordinates of green primary picture central point, (U
b, V
b) be the chromaticity coordinates of blue primary picture central point.
Preferably, the described formula that calculates described colour gamut value according to described gamut area, comprising:
C=（S/0.1952）*100%
Wherein, C is described colour gamut value.
In the present embodiment, the chromaticity coordinates of the collection red, green, blue picture central point of all kinds that data processing equipment gathers according to data collector, calculates colour gamut value, thereby realizes unartificial colour gamut value test, has reduced error probability, and has improved efficiency.
Preferably, described test signal is the vision signal that described data processing equipment generates according to the image for testing.The direct generating video signal of data processing equipment shows for display panel to be tested, does not need extra switching device, saves cost and is conducive to simplied system structure.
Preferably, described data processing equipment comprises first interface, and described first interface is connected with display panel to be tested by described first data transmission line; Wherein, described first interface is USB A type socket, and described first data transmission line is that USB interface turns that VGA interface data wire, USB interface turn DVI interface data wire, USB interface turns HDMI interface data wire or USB interface turns DisplayPort interface data wire.In the present embodiment, first interface has the lower cost of realizing, and first data transmission line can provide multiple choices for the interface that is connected with display panel to be tested, is convenient to test the display device of multiple interfaces.
Preferably, described data processing equipment comprises the second interface, and described data collector comprises the 3rd interface, and described the second interface is connected with described the 3rd interface of described data collector by described the second data line; Wherein, described the second interface is USB A type socket, and described the 3rd interface is USB Type B plug, and described the second data line is USB print data line.In the present embodiment, the second interface, the 3rd interface and the second data line have the lower cost of realizing.
Preferably, described data processing equipment is computer installation or embedded system.
Preferably, described data collector is color analysis instrument.
Embodiment of the present invention beneficial effect is as follows: data processing equipment is controlled the picture that display panel to be measured shows regulation, make data collector gather the chromaticity coordinates of primary colours face picture and send data processing equipment, and then data processing equipment calculates the colour gamut value that chromaticity coordinates that this primary colours face draws obtains this display panel to be measured, realization is to the unartificial colour gamut value test of display panel to be tested, reduce error probability, and improved efficiency.
Accompanying drawing explanation
The structural representation of the display panel colour gamut value test macro that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with Figure of description, the implementation procedure of the embodiment of the present invention is elaborated.It should be noted that same or similar label from start to finish represents same or similar element or has the element of identical or similar functions.Below by the embodiment being described with reference to the drawings, be exemplary, only for explaining the present invention, and can not be interpreted as limitation of the present invention.
Referring to Fig. 1, the embodiment of the present invention provides a kind of display panel colour gamut value test macro, comprising: data processing equipment 1, data collector 2, first data transmission line 3 and the second data line 4;
Data processing equipment 1 is connected with display panel 5 to be tested by first data transmission line 3, to display panel 5 to be tested, send test massage and make display panel to be tested show the primary colours picture of regulation, and the chromaticity coordinates that receives the primary colours face the collecting picture of data collector 2 transmissions by the second data line 4, and the chromaticity coordinates that primary colours face is drawn calculates;
In the present embodiment, data processing equipment 1 is controlled the picture that display panel to be measured shows regulation, make data collector 2 gather the chromaticity coordinates of primary colours face picture and send data processing equipment 1, and then data processing equipment 1 calculates the colour gamut value of this display panel 5 to be measured according to the chromaticity coordinates of primary colours face picture, realization is to the unartificial colour gamut value test of display panel 5 to be tested, reduce error probability, and improved efficiency.
The chromaticity coordinates that primary colours face is drawn comprises the chromaticity coordinates of the chromaticity coordinates of red primary picture central point, the chromaticity coordinates of green primary picture central point and blue primary picture central point.The direct generating video signal of data processing equipment 1 shows for display panel 5 to be tested.This vision signal can be red primary picture, green primary picture and blue primary picture.In the present embodiment, directly generating video signal, does not need extra switching device, saves cost and is conducive to simplied system structure.
The chromaticity coordinates that 1 pair of primary colours face of data processing equipment is drawn calculates and generates colour gamut value, comprising:
According to the chromaticity coordinates of red primary, green primary and blue primary picture central point, calculate gamut area;
According to gamut area, calculate colour gamut value.
An example more intuitively, as: data processing equipment 1 generates red primary picture successively, green primary picture and blue primary picture show for display panel 5 to be tested, data collector 2 22 gathers the red primary picture that display panel to be tested 5 shows successively by popping one's head in, the chromaticity coordinates of the central point of green primary picture and blue primary picture, and send to data processing equipment 1 by the second data line 4, thereby data processing equipment 1 can be according to red primary picture, the chromaticity coordinates of the central point of green primary picture and blue primary picture calculates the three primary colours gamut area of this display panel 5 to be tested, and then calculate the three primary colours colour gamut value of this display panel 5 to be tested.
The calculating colour gamut value of calculating colour gamut value according to the chromaticity coordinates of the central point of red primary picture, green primary picture and blue primary picture, has following explanation:
First, the chromaticity coordinates of red primary, green primary and the blue primary picture central point showing according to display panel to be tested calculates gamut area, as formula (1):
S=[(U
r-U
b)(V
g-V
b)-(U
g-U
b)(V
r-V
b)]/2 （1）
Wherein, S is gamut area, and (Ur, Vr) is the chromaticity coordinates of red primary picture central point, (U
g, V
g) be the chromaticity coordinates of green primary picture central point, (U
b, V
b) be the chromaticity coordinates of blue primary picture central point.
The gamut area that calculates according to above-mentioned formula (1) is calculated colour gamut value, as formula (2):
C=（S/0.1952）*100% （2）
Wherein, C is colour gamut value.
In the present embodiment, the chromaticity coordinates of the collection red primary that data processing equipment 1 gathers according to data collector 2, green primary, blue primary picture central point, calculates colour gamut value, thereby realizes unartificial colour gamut value test, has reduced error probability, and has improved efficiency.
Preferably, test signal is the vision signal that data processing equipment 1 generates according to the image for testing.The direct generating video signal of data processing equipment 1 shows for display panel 5 to be tested, does not need extra switching device, saves cost and is conducive to simplied system structure.
Preferably, data processing equipment 1 comprises first interface 11, and first interface 11 is connected with display panel 5 to be tested by first data transmission line 3; Wherein, first interface 11 is USB A type socket, and first data transmission line 3 turns DVI interface data wire for USB interface turns VGA interface data wire, USB interface, USB interface turns HDMI interface data wire or USB interface turns DisplayPort interface data wire.In the present embodiment, first interface 11 has the lower cost of realizing, and first data transmission line 3 can provide multiple choices for the interface being connected with display panel 5 to be tested, is convenient to test the display device of multiple interfaces.
Preferably, data processing equipment 1 comprises the second interface 12, and data collector 2 comprises that the 3rd interface 21, the second interfaces 12 are connected with the 3rd interface 21 of data collector 2 by the second data line 4; Wherein, the second interface 12 is USB A type socket, and the 3rd interface 21 is USB Type B plug, and the second data line 4 is USB print data line.In the present embodiment, the second interface 12, the 3rd interface 21 and the second data line 4 have the lower cost of realizing.But those skilled in the art also can select interface and the data line of other types according to demand, and the present invention is not limited to this.
Preferably, data processing equipment 1 is computer installation or embedded system.
It should be noted that, the display panel to be tested of mentioning of the present invention can be LCD display panel, light emitting diode (Organic Light Emitting Diode, OLED) display panel or Plasmia indicating panel etc.
Embodiment of the present invention beneficial effect is as follows: data processing equipment is controlled the picture that display panel to be measured shows regulation, make data collector gather the chromaticity coordinates of primary colours face picture and send data processing equipment, and then data processing equipment calculates the colour gamut value that chromaticity coordinates that this primary colours face draws obtains this display panel to be measured, realization is to the unartificial colour gamut value test of display panel to be tested, reduce error probability, and improved efficiency.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a display panel colour gamut value test macro, is characterized in that, comprising: data processing equipment, data collector, first data transmission line and the second data line, wherein,
Described first data transmission line is used for connecting described data processing equipment and display panel to be tested;
Described the second data line is used for connecting described data processing equipment and described data collector; Described data processing equipment sends test massage and makes described display panel to be tested show the primary colours picture of regulation to described display panel to be tested;
Described data collector gathers the chromaticity coordinates that described primary colours face is drawn, and sends to data processing equipment to calculate generation colour gamut value.
2. test macro as claimed in claim 1, is characterized in that, the chromaticity coordinates that described primary colours face is drawn comprises the chromaticity coordinates of the chromaticity coordinates of red primary picture central point, the chromaticity coordinates of green primary picture central point and blue primary picture central point.
3. test macro as claimed in claim 2, is characterized in that, the chromaticity coordinates that described data processing equipment is drawn described primary colours face calculates and generates colour gamut value, comprising:
According to the chromaticity coordinates of red, green and blue primary colours picture central point, calculate gamut area;
According to described gamut area, calculate described colour gamut value.
4. test macro as claimed in claim 3, is characterized in that, the described chromaticity coordinates according to red primary, green primary and blue primary picture central point calculates the formula of gamut area, comprising:
S=[(U
r-U
b)(V
g-V
b)-(U
g-U
b)(V
r-V
b)]/2
Wherein, S is gamut area, (U
r, V
r) be the chromaticity coordinates of red primary picture central point, (U
g, V
g) be the chromaticity coordinates of green primary picture central point, (U
b, V
b) be the chromaticity coordinates of blue primary picture central point.
5. test macro as claimed in claim 4, is characterized in that, the described formula that calculates described colour gamut value according to described gamut area, comprising:
C=（S/0.1952）*100%
Wherein, the described colour gamut value that C is described display panel to be tested.
6. test macro as claimed in claim 1, is characterized in that, described test signal is the vision signal that described data processing equipment generates according to the image for testing.
7. test macro as claimed in claim 1, is characterized in that, described data processing equipment comprises first interface, and described first interface is connected with display panel to be tested by described first data transmission line; Wherein, described first interface is USB A type socket, and described first data transmission line is that USB interface turns VGA interface data wire, USB interface and turns DVI interface data wire, USB interface and turn HDMI interface data wire or USB interface and turn any one in DisplayPort interface data wire.
8. test macro as claimed in claim 1, it is characterized in that, described data processing equipment comprises the second interface, and described data collector comprises the 3rd interface, and described the second interface is connected with described the 3rd interface of described data collector by described the second data line; Wherein, described the second interface is USB A type socket, and described the 3rd interface is USB Type B plug, and described the second data line is USB print data line.
9. test macro as claimed in claim 1, is characterized in that, described data processing equipment is computer installation or embedded system.
10. test macro as claimed in claim 1, is characterized in that, described data collector is color analysis instrument.
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Application publication date: 20140326 |