VX1828B
Preliminary Datasheet
Video Processor for Middle Size LCD Panel
P.20/P.64
V1.0 050420
Table 5.3 EZ-Gamma Configurations
CLUTABLE_PGR Function CLUTABLE_PGR Function
00h-0Fh
Using user-programmed
table 7Bh – 9Bh
18h (default)
Gamma = 1.4
10h
Gamma = 0.75
19h
Gamma = 1.5
11h
Gamma = 0.8
1Ah
Gamma = 1.6
12h
Gamma = 0.85
1Bh
Gamma = 1.7
13h
Gamma = 0.9
1Ch
Gamma = 1.9
14h
Gamma = 1.0
1Dh
LCD Panel 1
15h
Gamma = 1.1
1Eh
LCD Panel 2
16h
Gamma = 1.2
1Fh
LCD Panel 3
17h
Gamma = 1.3
5.10 ON-SCREEN-DISPLAY (OSD)
5.10.1 OSD INTRODUCTIONS
The VX1828B integrates VXIS’s font-based on-screen display (OSD) unit, which can display a total of
up to 256 characters in a single screen, with each font in 16 pixels x 20 pixels format. There are up to
160 build-in fonts stored in the internal Random-Access-Memory (RAM) and Read-Only-Memory
(ROM).
5.10.2 OSD DISPLAY BLOCKS
The build-in OSD system divides the screen display into three basic sections, the title, content, and
bottom blocks, and the user can customize the size and position for each display block by host
commands (
Figure 5.4
).