LM195WD1
Liquid Crystal Display
Product Specification
3-4. Signal timing specifications
This is the signal timing required at the input of the User connector. All of the interface signal
timing should be satisfied with the following specifications for it’s proper operation.
Table 7. Timing table
Symbol
tCLK
Min.
14.6
Typ.
18.5
Max.
23.1
Unit
ns
Notes
Parameter
Period
Pixel frequency
: Typ.108.0MHz
DCLK
Frequency
fCLK
43.2
54.0
68.4
MHz
Horizontal Valid
H Period Total
tHV
tHP
800
856
800
900
800
tCLK
Horizontal
1200
Hsync Frequency
Vertical Valid
fH
48.0
900
908
48
60.0
900
1000
60
76.0
900
1300
76
kHz
tHP
tVV
tVP
fV
Vertical
Note:
V Period Total
Vsync Frequency
Hz
1. DE Only mode operation. The input of Hsync & Vsync signal does not
have an effect on LCD normal operation.
2. The performance of the electro-optical characteristics may be influenced by variance of the
vertical refresh rates.
3. Horizontal period should be even.
4. Hsync Period, Hsync Width, and Horizontal Back Porch should be any times of of character
number(4).
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Ver. 0.2
Feb. 04, 2013
LG [ LG SEMICON CO.,LTD. ]
