Measurement method for measuring display panel and apparatus thereof
AssigneesHkc Corporation Limited, Chongqing Hkc Optoelectronics Technology Co., Ltd.
InventorChia-Hang LEE
Life of this patent
Estimating the term…
Abstract
This application relates to a measurement method for measuring a display panel and an apparatus thereof. The measurement method for measuring a display panel includes: correcting a measurement picture of a display panel; obtaining, by using a measurement apparatus, a picture to be measured; setting a shooting instrument to complete a shooting parameter under a measurement environment; shooting and correcting system measurement data by using the shooting parameter; replacing a display panel to be measured; measuring a gamma curve; and outputting a gamma curve, where the display panel needs to be corrected only once, and a gamma curve of a next display panel continues to be measured.
Claims20
A measurement method for measuring a display panel, comprising:
- correcting a measurement picture of a display panel;
- obtaining, by using a measurement apparatus, a picture to be measured;
- setting a shooting instrument to complete a shooting parameter under a measurement environment;
- shooting and correcting system measurement data by using the shooting parameter;
- replacing a display panel to be measured;
- measuring a gamma curve;
- and
- outputting a gamma curve, wherein the display panel needs to be corrected only once, and a gamma curve of a next display panel continues to be measured.
A measurement method for measuring a display panel, comprising:
- correcting a measurement picture of a display panel;
- obtaining, by using a measurement apparatus, a picture to be measured;
- setting a shooting instrument to complete a shooting parameter under a measurement environment;
- shooting and correcting system measurement data by using the shooting parameter;
- replacing a display panel to be measured;
- measuring a gamma curve;
- and
- outputting a gamma curve, wherein
- the display panel needs to be corrected only once, and a gamma curve of a next display panel continues to be measured;
- an interpolation operation is performed on gray-scale values on the isoluminance spatial planes, to obtain brightness distribution of entire brightness space;
- the interpolation operation is a linear interpolation operation or a non-linear interpolation operation;
- the interpolation operation comprises:
- collecting brightness information of points on an isoluminance spatial plane, under each (x,y) coordinate, obtaining brightness distribution L(x,y) at the position, and defining N different (x,y) position coordinates represent different brightness images, and obtaining, by using an interpolation method from brightness messages shot under different (x,y) coordinates, corresponding brightness by means of an interpolation operation, and consequently, obtaining brightness under N different gray-scales in gamma curve distribution, N being a positive number;
- and the measurement apparatus is a photosensitive coupling component or a complementary metal-oxide semiconductor.
A measurement apparatus for measuring a display panel, comprising:
- a display panel;
- a measurement picture unit, electrically connected to the display panel and configured to correct a measurement picture of a display panel;
- a picture capturing unit, electrically connected to the display panel and configured to obtain a picture to be measured;
- a shooting instrument unit, electrically connected to the display panel and configured to complete a shooting parameter under a measurement environment and shoot and correct system measurement data by using the shooting parameter;
- and
- a gamma curve measurement unit, electrically connected to the display panel and configured to output a gamma curve, wherein
- the display panel needs to be corrected only once, and a gamma curve of a next display panel continues to be measured.
Dependencies are inferred from the claim text.