5-17
2. External Inspection on the LCD Module
2.1 External Inspection of the Display Surface
The display surface should be visually inspected according to the inspection items specified below. In cases
of the discovery of extreme defects or doubtful judgment, final judgment should be made on the basis of
relevant detailed standards for inspection.
Unless otherwise specified, the inspection signals should be used at the timing of Signal 32 specified in
Paragraph 1.2.8 herein. However, the inspection screen should be arranged according to the “Instructions
1) to 5) of the Inspection Standard” set forth in Paragraph 2.1.2 (1).
2.1.1 Inspection Items
1) Examination of the missing of lines (horizontal or vertical lines failing to be displayed).
2) Presence of extreme missing of dots (bright dots and black dots), or conspicuous ones.
3) Presence of extreme flaws, wrinkles, air bubble, dents, lint, foreign matter, and conspicuous abnormality
on the display surface.
2.1.2 Inspection Standards
Inspection standards for external appearance and display conditions
(1) Inspection Standards
Use a fluorescent lamp of 20w1 (for the inspection of external appearance) or the display plane
illuminance of 60 to 75lx (for the inspection of display conditions). Secure a distance of 20cm between
the eyes and the sample, and that of 20 to 30cm between the fluorescent lamp and the sample. Under
the above-mentioned conditions or better, inspections should be carried out in the direction specified
below.
A: Angle of visibility for inspection (Right and left: 30
°
/Up and down: 20
°
to 0
°
)
The direction of application should be recorded in the column of direction. Inspection should be carried
out at a room temperature of 25
±
5
°
C.
The following screen should be used for the inspection.
1) All black or gray in 3 gradations
2) All red, all green, or all blue screen in solid color each
3) All white solid screen
Summary of Contents for LCD2080UX - MultiSync - 20.1" LCD Monitor
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