液晶投影顯示均勻性及色坐標(biāo)檢測


頁數(shù)：26 字?jǐn)?shù)：7195

液晶投影顯示均勻性及色坐標(biāo)檢測
關(guān)鍵詞：液晶投影顯示 數(shù)碼相機(jī) 色坐標(biāo) 均勻性
摘要
在對液晶顯示屏顏色和亮度的檢測中，如何能夠一次將這個屏幕的均勻分布的幾個點的色坐標(biāo)和亮度檢測出來是十分重要的。在目前，大多數(shù)的顏色和亮度檢測儀器大都是以精確的測量一點為主。當(dāng)然，利用黑白CCD進(jìn)行整個屏幕的測量也是有的，但由于需要用到濾光片而使得整個儀器在制造上十分不便。
為此，本文主要采用了數(shù)碼相機(jī)作為探測儀器，通過對數(shù)碼相機(jī)所拍圖片的電平值與刺激值的轉(zhuǎn)換的分析和對其顏色系統(tǒng)的定標(biāo)可以達(dá)到和顯示屏顏色系統(tǒng)的轉(zhuǎn)換，再經(jīng)過一系列計算可以得到所拍攝圖片上各個點的色度坐標(biāo)和其亮度值。
此外，本文還對測量的結(jié)果進(jìn)行了分析，得到此中檢測方法的計算結(jié)果和標(biāo)準(zhǔn)值的誤差。
ABSTRACT
In the measurement of the color and the brightness of the liquid crystal screen, how to measure the color coordinates and the brightness of some points that averagely distribute on the screen one time is very important. But at present, most of the apparatuses for the measurement of the color and the brightness are accurately measure only one point. Of course, measurement all the screen with black and white CCD is also receivability. But it needs the filters, the manufacture of the apparatus is very difficult.
For this reason, this article adopted the digital camera as the apparatus of the measurement, via the analysis of the transition between the electricity level and the stimulative value of the photos and confirms the coordinates of the color system, we can get the transition of the color system between the photos and the screen. And then, after a series calculation, we got the color coordinates and the brightness of each point on the photo.
Besides, this article analyzed the result of the measurement, and got the error between the result and the standard value. 序言
隨著電子計算機(jī)工業(yè)的發(fā)展及信息社會的到來，大屏幕顯示在生活、娛樂、軍事等各方面都起著重要的作用。當(dāng)前市場上占主導(dǎo)地位的投影顯示是陰極顯象管技術(shù)，這種顯示產(chǎn)品通常需要3