Philips S1D13505 Manual De Usuario

Page 26

Epson Research and Development

Vancouver Design Center

S1D13505

Programming Notes and Examples

X23A-G-003-07

Issue Date: 01/02/05

Gray Shade Modes

This discussion of gray shade/monochrome modes only applies to the panel interface.
Monochrome mode is selected when register [01] bit 2 = 0. In this mode the output value
to the panel is derived solely from the green component of the LUT. The CRT image will
continue to be formed from all three (RGB) Look-Up Table components.

Note

In order to match the colors on a CRT with the colors on a monochrome panel it is im-
portant to ensure that the red and blue components of the Look-Up Table be set to the
same intensity as the green component.

1 bpp gray shade

In 1 bpp gray shade mode only the first two entries of the green LUT are used. All other
LUT entries are unused.

2 bpp gray shade

In 2 bpp gray shade mode the first four green elements are used to provide values to the
panel. The remaining indices are unused.

Table 4-6: Recommended LUT Values for 1 Bpp Gray Shade

Address

Red

Green

Blue

...

= Required to match CRT to panel

= Unused entries

Table 4-7: Suggested Values for 2 Bpp Gray Shade

Index

Red

Green

Blue

...

= Required to match CRT to panel

= Unused entries