![Texas Instruments OMAP36 Series Technical Reference Manual Download Page 1736](http://html.mh-extra.com/html/texas-instruments/omap36-series/omap36-series_technical-reference-manual_10946781736.webp)
Initial Figure on LCD (With CPR)
Initial Figure on LCD (No CPR)
Initial Figure
dss-202
Public Version
Display Subsystem Basic Programming Model
www.ti.com
Figure 7-133. Image With and Without CPR (Diagonal Matrix)
A drawback of this diagonal matric is that the color reduction is linear. The contrast is then different from
the initial image. It is then necessary to use the 6 other coefficients of the CPR matrix to better correct a
non-white backlight. The goal is to find the correct coefficients that remove the color offset added by the
non-white backlight.
7.5.3.5.6.2 Color Phase Rotation - Standard Matrix
In the following example, the LCD backlight adds an offset of 128 (B_offset) to the Blue component.
shows an example of matrix that reduces the offset of the screen, the corresponding
equations and the resulting output colors.
1736
Display Subsystem
SWPU177N – December 2009 – Revised November 2010
Copyright © 2009–2010, Texas Instruments Incorporated