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T-51750GD065J-FW-AA Datasheet, PDF (12/23 Pages) OPTREX CORPORATION – LCD Module | |||
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(Fig.5-1)
Method of Brightness Measurement
Measuring Device
TOPCON BM-7,Measuring Field:1°
Measuring Point
Center of Display θ=0°, Ï=0°
On condition θ: A vertical angle from measuring direction to perpendicular.
Ï: A horizontal angle from measuring direction to perpendicular.
LCD Module
Distance :500mm
Center
(Pixel)
(X, Y) (320, 240
TOPCON BM-7
Method of Measuring
Apply signal voltage (displayed in white) to maximize brightness and measure brightness B
(cd/m2).
The distance between BM-7âs front lens to surface panel is 500mm.
Measured after backlight has been lit for more than 30 minutes.
Method of Contrast Measurement
Measuring Device
TOPCON BM-7,Measuring Field:1°
Measuring Point
Center of display: same as Method of Brightness Measurement
Method of Measuring
Set LCD module toθ=0°, Ï=0°.
Change signal voltage to measure maximum brightness Y1 and minimum brightness
Y2.
Contrast is derived from CR=Y1/Y2.
T-51750GD065J-FW-AA (AA) No. 2003-0199
OPTREX CORPORATION
Page 12/24
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