5-17
2. External inspection on the LCD module
2.1 External inspection of the display surface
The display surface shall 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 shall be used at the timing of Signal 25 specified in
Paragraph 1.2.8 herein. However, the inspection screen shall 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 40 to 200lx (for the inspection of display conditions). Secure a distance of 35cm 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 shall 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 shall be recorded in the column of direction. Inspection shall be carried out at
a room temperature of 25
±
5
°
C.
The following screen shall be used for the inspection.
1) All black or gray in 3 gradations
2) 15-gradation dot checkers (R,G,B in single color each)
3) 15-gradation dot checkers reversal screen
4) All red, all green, or all blue screen in solid color each
5) All white solid screen
(2) Standards for display conditions and external appearance inspection
Standard for errors (defects)
Summary of Contents for LCD1920NX BK - MultiSync - 19" LCD Monitor
Page 4: ...1 1 USER S MANUAL 1 A Version MultiSync LCD1920NX TM ...
Page 49: ...3 6 SYMBOL CODE DESCRIPTION 15 79PZ0004 LCD MODULE 19 0 TFT FLC4 15 ...
Page 100: ...7 9 2 4 3 Circuit diagram ...
Page 172: ...MODEL LCD1920NX LCD MAIN BD 1 7 SCHEMATIC DIAGRAM 10 1 Schematic Diagram ...
Page 173: ...MODEL LCD1920NX LCD MAIN BD 2 7 SCHEMATIC DIAGRAM 10 2 ...
Page 174: ...MODEL LCD1920NX LCD MAIN BD 3 7 SCHEMATIC DIAGRAM 10 3 ...
Page 175: ...MODEL LCD1920NX LCD MAIN BD 4 7 SCHEMATIC DIAGRAM 10 4 ...
Page 176: ...MODEL LCD1920NX LCD MAIN BD 5 7 SCHEMATIC DIAGRAM 10 5 ...
Page 177: ...MODEL LCD1920NX LCD MAIN BD 6 7 SCHEMATIC DIAGRAM 10 6 ...
Page 178: ...MODEL LCD1920NX LCD MAIN BD 7 7 SCHEMATIC DIAGRAM 10 7 ...
