Akai CT-S21MTD-E3 Service Manual download pdf (Page 61)

Issued Date: September 18, 2003

Model No.: V270W - L03

Approval

Note (7) Measurement Setup:

The LCD module should be stabilized at given temperature for 1 hour to avoid abrupt

temperature change during measuring. In order to stabilize the luminance, the measurement

should be executed after lighting Backlight for 1 hour in a windless room.

Light Shield Room

(Ambient Luminance < 2 lux)

Display Color Analyzer

(Minolta CA210)

Center of the Screen

LCD Panel

LCD Module

Note (8) Definition of White Variation (δW):

Measure the luminance of gray level 255 at 5 points

δW = Maximum [L (1), L (2), L (3), L (4), L (5)] / Minimum [L (1), L (2), L (3), L (4), L (5)]

Horizontal Line

3W/4

W/2

W/4

3D/4D/2D/4

: Test Point

X=1 to 5

Vertical Line

Active Area

20 / 26

The information described in this technical specification is tentative and it is possible to be changed without prior

notice. Please contact CMO ’s representative while your product design is based on this specification. Version 2.0

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Akai CT-S21MTD-E3 Service Manual Page 61