LUMINANCE CORRECTION SYSTEM AND METHOD
First Claim
1. A luminance correction system comprising:
- a data signal application module that applies a data signal to a display region to emit light at a maximum luminance;
a luminance measurement module that measures luminance of a pixel in the display region to which the data signal is applied;
a comparator that compares the measured luminance with a target value of luminance to obtain a difference value therebetween;
a memory that stores a lookup table including luminance variations of R, G, and B pixels in the display region corresponding to the obtained difference value;
a data adjustment module that adjusts the data signal depending on the stored luminance variations of the R, G, and B pixels and transfers the data signal to the data signal application module;
a color coordinate judgment module that judges a color coordinate of the of the R, G, and B pixels; and
a chroma correction module that controls chroma of the R, G, and B pixels corresponding to the color coordinate judged by the color coordinate judgment module.
3 Assignments
0 Petitions
Accused Products
Abstract
A luminance correction system and method include: a data signal application module that applies a data signal to emit light at a maximum luminance; a luminance measurement module that measures luminance of a display region to which the data signal is applied; a comparator that compares luminance with a target value of luminance to obtain a difference value therebetween; a lookup table that adjusts luminance variations of R, G, and B pixels included in the display region by corresponding to the difference value; a data adjustment module that adjusts the data signal depending on the luminance variations of the R, G, and B pixels to transfer it to the data signal applying module; a color coordinate judgment module that judges a color coordinate of the display region; and a chroma correction module that controls chroma corresponding to the color coordinate judged by the color coordinate judgment module.
-
Citations
11 Claims
-
1. A luminance correction system comprising:
-
a data signal application module that applies a data signal to a display region to emit light at a maximum luminance; a luminance measurement module that measures luminance of a pixel in the display region to which the data signal is applied; a comparator that compares the measured luminance with a target value of luminance to obtain a difference value therebetween; a memory that stores a lookup table including luminance variations of R, G, and B pixels in the display region corresponding to the obtained difference value; a data adjustment module that adjusts the data signal depending on the stored luminance variations of the R, G, and B pixels and transfers the data signal to the data signal application module; a color coordinate judgment module that judges a color coordinate of the of the R, G, and B pixels; and a chroma correction module that controls chroma of the R, G, and B pixels corresponding to the color coordinate judged by the color coordinate judgment module. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method for correcting luminance comprising:
-
measuring luminance of a display region emitting light at a maximum luminance; comparing the measured luminance with a target value of luminance to calculate a difference value therebetween; judging luminance variations of a R pixel, a G pixel, and a B pixel corresponding to the calculated difference value; changing luminance of the R, G, and B pixels depending on the judged luminance variations; and correcting chroma by selecting one of a plurality of cases of color coordinate of the R, G, and B pixels. - View Dependent Claims (7, 8, 9)
-
-
10. A method for correcting luminance in an organic light emitting display having a display region and a plurality of R, G, and B pixels, the method comprising:
-
applying data signals to cause the display region to emit light; measuring luminance of the emitted light; comparing the measured luminance to a target luminance value to determine a difference value; accessing a lookup table using the difference value to determine luminance variations of a R pixel, a G pixel, and a B pixel in the display region; changing luminance and chroma of the R, G, and B pixels depending on the determined luminance variations. - View Dependent Claims (11)
-
Specification