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1 DISPLAY ALIGNMENT
A. Times & Display Size
For all presetting mode listing in table 2 shall be within the limitation:
H. WIDTH
V. HEIGHT
The external control range of the data area, shall be as follows;
Max. horizontal size: overscan the screen
Min. horizontal size: ≤ 294mm
Max. vertical size : over the screen
Min. vertical size : ≤ 221 mm
B. Picture Position
For all presetting mode listing in table 2 shall be within the limitation:
H.PHASE
V.CENTER
The external control ranges of display for all modes listed in section 2.4
H.POSITION
V.CENTER
C. Linearity
The CONTRAST and BRIGHTNESS control shall be properly adjusted at 20 F-L with Full-
intensity reverse pattern, then change to crosshatch Pattern 12x10 (H x V), the size of grid of
crosshatch pattern in every display mode shall not vary than 10%. If two line is next to each
other, 6% if they are not next to each other. The calculation formula was listed below:
H max - H min
(H max + H min) / 2
D. Geometry Distortion (All Preset Mode)
1) The Contrast and Brightness control shall be properly adjusted at 25 F-L with full intensity
reverse pattern, then change to crosshatch pattern.
2) Pincushion distortion shall be less than H : 1.5% and V : 1.5%.
3) Barrel distortion shall be less than H : 1.5% and V : 1.5%.
4) Trapezoid and parallelogram distortion shall be less than H : 1.5% and V : 1.5%.
5) Parallelogram distortion shall be less than 2.0%
6) Tilt distortion shall be less than 1/2 degree when facing east and less than 1 degree when turning
around 360 degree.
7) Tilt distortion shall be less than 2 mm when facing east and less than 1 degree when turning
around 360 degree. The measurement of tilt is defined to measure the vertical axis with respect
to the bezel, the absolute value of the difference between the extreme left and right
measurement of the center horizontal line.
310 ± 3 mm
233 ± 3 mm
SCREEN CENTER ± 3 mm
SCREEN CENTER ± 3 mm
≥ 50 mm
≥ 25 mm
V max - V min
x100% or
(V max + V min) / 2
x 100%
1
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