ViewSonic VP720B Service Manual - Page 8

Panel Characteristics, Source Panel, On/Off - 17

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Panel Characteristics : 1st Source Panel Model number Type Active Size Pixel Arrangement Pixel Pitch Glass Treatment # of Backlights Backlight Life Luminance (Center) - CCT = User Color (R/G/B=100%), Contrast/ Brightness = Max Brightness Uniformity Contrast Ratio Color Depth Horizontal Viewing Angle Vertical Viewing Angle Response Time 10%-90% @ Ta=25°C Mercury Panel Defects CPT CLAA170EA07Q Active Matrix TFT, TN technology 17" RGB Vertical Stripe 0.264 mm Anti-Glare 4 CCFL 40,000 Hrs (Min) 280 cd/m2 (Typ after 30 minute warm up) 250 cd/m2 (Min after 30 minute warm up) 75 % (Min) 500 :1 (Typ) 450 : 1 (Min) 16.2 million colors (6+2 bit panel) 140 degrees (Typ) / 120 degrees (Min) @ CR>10 170 degrees (Typ) / 150 degrees (Min) @ CR>5 130 degrees (Typ) / 110 degrees (Min) @ CR>10 170 degrees (Typ) / 150 degrees (Min) @ CR>5 On/Off Typical = 8 ms Maximun = 12 ms GTG Average 4ms (Over Drive by scalar) *GTG response time was defined as average value of Tr and Tf for gray to gray signal change. 3 mg per lamp Please see Panel Quality Specifications. ViewSonic Corporation Confidential - Do Not Copy 5 VP720-1_VP720b-1

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ViewSonic Corporation
Confidential – Do Not Copy
VP720-1_VP720b-1
5
Panel Characteristics :
1
st
Source Panel
Model number
CPT CLAA170EA07Q
Type
Active Matrix TFT, TN technology
Active Size
17”
Pixel Arrangement
RGB Vertical Stripe
Pixel Pitch
0.264 mm
Glass Treatment
Anti-Glare
# of Backlights
4 CCFL
Backlight Life
40,000 Hrs (Min)
Luminance (Center) –
CCT = User Color (R/G/B=100%),
Contrast/ Brightness = Max
280 cd/m2 (Typ after 30 minute warm up)
250 cd/m2 (Min after 30 minute warm up)
Brightness Uniformity
75 % (Min)
Contrast Ratio
500 :1 (Typ)
450 : 1 (Min)
Color Depth
16.2 million colors (6+2 bit panel)
Horizontal Viewing Angle
140 degrees (Typ) / 120 degrees (Min) @ CR>10
170 degrees (Typ) / 150 degrees (Min) @ CR>5
Vertical Viewing Angle
130 degrees (Typ) / 110 degrees (Min) @ CR>10
170 degrees (Typ) / 150 degrees (Min) @ CR>5
Response Time
10%-90% @ Ta=25°C
On/Off
Typical = 8 ms
Maximun = 12 ms
GTG
Average
4ms (Over Drive by scalar)
*GTG response time was defined as average value of Tr
and Tf for gray to gray signal change.
Mercury
3 mg per lamp
Panel Defects
Please see Panel Quality Specifications.