Claims (7)
一種將顯示器面板之三原色亮度參數導入依據顯示器面板原始三原色及白色的光學特性計算灰階白平衡增益值以提高其灰階白平衡調校精準度之方法，該方法係應用於一顯示器上，包括：在一顯示器之一面板上分別顯示對應複數個灰階值的複數個全白色影像，且各該全白色影像係分別由對應各該灰階值的全紅色影像、全綠色影像及全藍色影像所混合形成；以儀器量測各該全白色影像之色度值及亮度值，以取得對應的一第一組全白刺激值與對應的一第一組全白量測亮度值，且該第一組全白刺激值中的一預定灰階值所對應的刺激值被定義為一第一刺激值；在該面板上分別顯示具有各該灰階值的各該全紅色影像，並以儀器量測各該全紅色影像之色度值及亮度值，以取得對應的一第二組全紅刺激值與對應的一第二組全紅量測亮度值，且該第二組全紅刺激值中的該預定灰階值所對應的刺激值被定義為一第二刺激值；在該面板上分別顯示具有各該灰階值的各該全綠色影像，並以儀器量測各該全綠色影像之色度值及亮度值，以取得對應的一第三組全綠刺激值與對應的一第三組全綠量測亮度值，且該第三組全綠刺激值中的該預定灰階值所對應的刺激值被定義為一第三刺激值；在該面板上分別顯示具有各該灰階值的各該全藍色影像，並以儀器量測各該全藍色影像之色度值及亮度值，以取得對應的一
第四組全藍刺激值與對應的一第四組全藍量測亮度值，且該第四組全藍刺激值中的該預定灰階值所對應的刺激值被定義為一第四刺激值；利用該第二組全紅量測亮度值、該第三組全綠量測亮度值及該第四組全藍量測亮度值，分別計算出該面板的一初始紅亮度曲線值、一初始綠亮度曲線值及一初始藍亮度曲線值；依照一配色定律，並依據該第一刺激值、該第二刺激值、該第三刺激值及該第四刺激值，計算出一第一色彩混合比例；輸入一目標色溫之理想全白色影像的一理想刺激值，依照該配色定律，並依據該理想刺激值，計算出一第二色彩混合比例；依據該第一色彩混合比例及該第二色彩混合比例之比值，計算出一初始紅色增益值、一初始綠色增益值及一初始藍色增益值；及依據該初始紅色增益值、該初始綠色增益值及該初始藍色增益值與該初始紅亮度曲線值、該初始綠亮度曲線值及該初始藍亮度曲線值，計算出一最終紅色增益值、一最終綠色增益值及一最終藍色增益值。
A method for introducing a brightness parameter of three primary colors of a display panel into a gray scale white balance gain value according to the original three primary colors of the display panel and white optical characteristics to improve the gray scale white balance adjustment accuracy, the method is applied to a display, including Displaying a plurality of all-white images corresponding to a plurality of grayscale values on one panel of a display, and each of the all-white images is respectively represented by a full red image, a full green image, and an all blue corresponding to the grayscale values The image is mixed and formed; the chromaticity value and the brightness value of each of the all-white images are measured by the instrument to obtain a corresponding first set of all white stimulus values and a corresponding first set of all whiteness measured brightness values, and the The stimulus value corresponding to a predetermined gray scale value of the first set of all white stimulus values is defined as a first stimulus value; each of the full red images having the gray scale values is respectively displayed on the panel, and the instrument is used Measure the chrominance value and the brightness value of each of the full red images to obtain a corresponding second set of full red stimulus values and a corresponding second set of total red amount measured brightness values, and the second set of full red stimulus values The stimulus value corresponding to the predetermined grayscale value is defined as a second stimulus value; each of the full green images having the grayscale values is respectively displayed on the panel, and each of the green images is measured by an instrument. a chrominance value and a brightness value to obtain a corresponding third set of all green stimuli values and a corresponding third set of all green saliency values, and the predetermined gradation values of the third set of all green stimuli values Corresponding stimulating value is defined as a third stimulating value; each blue-blue image having each of the gray-scale values is respectively displayed on the panel, and the chromaticity value and brightness of each of the all-blue images are measured by an instrument. Value to get the corresponding one
a fourth set of all blue stimulus values and a corresponding fourth set of all blue amount measured brightness values, and the stimulus value corresponding to the predetermined gray level value of the fourth set of all blue stimulus values is defined as a fourth stimulus value Calculating an initial red luminance curve value of the panel and an initial value by using the second set of total red color measurement brightness values, the third group of full green quantity measurement brightness values, and the fourth group of full blue quantity measurement brightness values a green brightness curve value and an initial blue brightness curve value; according to a color matching law, and calculating a first color mixture according to the first stimulation value, the second stimulation value, the third stimulation value, and the fourth stimulation value a ratio of an ideal stimulus value of an ideal all-white image of a target color temperature, according to the color matching law, and calculating a second color mixture ratio according to the ideal stimulus value; according to the first color mixing ratio and the second color Calculating an initial red gain value, an initial green gain value, and an initial blue gain value; and determining the initial red gain value, the initial green gain value, and the initial blue gain value and the initial red bright Curve value, the initial value and the green luminance curve blue luminance curve initial value, a final calculated gain value for red, a gain value and a final green blue gain final value.
如請求項1所述之方法，其中在計算出該第一色彩混合比例與該第二色彩混合比例之前，尚包括下列步驟：在該面板上顯示具有灰階值為零的一全黑色影像，並以儀器量測該全黑色影像之色度值及亮度值，以取得對應的三刺激值與對應的一第五量測亮度值，且所對應的三刺激值被定義為一第五刺激值；及該第一刺激值、該第二刺激值、該第三刺激值及該第四刺激值
會分別扣除該第五刺激值後，再計算出該第一色彩混合比例，且該理想刺激值會扣除該第五刺激值後，再計算出該第二色彩混合比例。
The method of claim 1, wherein before calculating the first color mixing ratio and the second color mixing ratio, the method further includes: displaying a full black image having a grayscale value of zero on the panel, And measuring the chromaticity value and the brightness value of the full black image by the instrument to obtain a corresponding tristimulus value and a corresponding fifth amount of the measured brightness value, and the corresponding tristimulus value is defined as a fifth stimulation value. And the first stimulation value, the second stimulation value, the third stimulation value, and the fourth stimulation value
After the fifth stimulation value is respectively deducted, the first color mixing ratio is calculated, and the ideal stimulation value is deducted from the fifth stimulation value, and then the second color mixing ratio is calculated.
如請求項2所述之方法，其中在計算出該初始紅亮度曲線值、該初始綠亮度曲線值及該初始藍亮度曲線值之前，尚會增加該第五量測亮度值以進行計算。
The method of claim 2, wherein the fifth measured brightness value is further increased for calculation before the initial red brightness curve value, the initial green brightness curve value, and the initial blue brightness curve value are calculated.
如請求項1、2或3所述之方法，其中在計算出該最終紅色增益值、該最終綠色增益值及該最終藍色增益值之前，係對該初始紅色增益值、該初始綠色增益值及該初始藍色增益值，分別取對應之該初始紅亮度曲線值、該初始綠亮度曲線值及該初始藍亮度曲線值的倒數次方值，再進行一預定倍數的放大後，以計算出該最終紅色增益值、該最終綠色增益值及該最終藍色增益值。The method of claim 1, 2 or 3, wherein the initial red gain value, the initial green gain value, before the final red gain value, the final green gain value, and the final blue gain value are calculated And the initial blue gain value, respectively, the corresponding initial red brightness curve value, the initial green brightness curve value, and the inverse power value of the initial blue brightness curve value, and then a predetermined multiple of magnification is calculated to calculate The final red gain value, the final green gain value, and the final blue gain value.
如請求項4所述之方法，其中該預定倍數係為2的冪次方倍。
The method of claim 4, wherein the predetermined multiple is a power of two.
如請求項5所述之方法，尚將該最終紅色增益值、最終綠色增益值及最終藍色增益值設定至該顯示器。
The method of claim 5, wherein the final red gain value, the final green gain value, and the final blue gain value are still set to the display.
如請求項5所述之方法，尚包括：將該最終紅色增益值、最終綠色增益值及最終藍色增益值寫入至一色彩描述檔中，並將該色彩描述檔儲存至一電子裝置，並在該電子裝置與該顯示器相連接的狀態下，使該電子裝置根據該色彩描述檔之內容修正其發送至該顯示器之影像訊號。The method of claim 5, further comprising: writing the final red gain value, the final green gain value, and the final blue gain value into a color description file, and storing the color description file to an electronic device, And in the state that the electronic device is connected to the display, the electronic device is caused to correct the image signal sent to the display according to the content of the color profile.