LM190E08-TLL1 LG, LM190E08-TLL1 Datasheet - Page 19

• Manufacturer Part Number: LM190E08-TLL1
• Description: TFT LCD Module
• Manufacturer: LG

Notes :
Notes :
3. The variation in surface luminance , δ
1. Contrast ratio(CR) is defined mathematically as :
2. Surface luminance is the luminance value at center 1 point(1) across
V
Ver. 0.1
<Measuring point for luminance variation>
Contrast ratio =
the LCD surface 50cm from the surface with all pixels displaying white.
For more information see FIG 8.
FIG. 8 Luminance measuring point
It is measured at center point(1)
V/10
For more information see Figure 8.
V/2
δ
WHITE
<Measuring point for surface luminance and luminance variation>
Active Area
2
5
7
= --------------------------------------------- *100
H/2
---------------------------------------------------------
H : 376.320 mm
V : 301.056 mm
@ H,V : Active Area
H
Minimum (P1,P2 …..P9)
Maximum (P1,P2 …..P9)
3
Surface luminance with all white pixels
Surface luminance with all black pixels
1
8
Product Specification
H/10
Nov., 15, 2006
WHITE
4
6
9
is defined as
<Measuring point for surface luminance>
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H/2
H
Liquid Crystal Display
V/2
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V
Datasheet pdf - http://www.DataSheet4U.co.kr/