參數(shù)資料
型號(hào)： LM151X2
廠商： NXP Semiconductors N.V.
英文描述： Liquid Crystal Display
中文描述： 液晶顯示器
文件頁(yè)數(shù)： 7/25頁(yè)
文件大?。?/td> 563K
代理商： LM151X2
Revision Ver 1.0 October 14, 1998 Page
7/25
LM151X2
Liquid Crystal Display
Product Specification
Notes 1. Contrast Ratio (CR) is defined mathematically as:
(Surface Brightness with all white pixels)
(Surface Brightness with all black pixels)
Contrast ratio shall be measured at the center of the display (Location 1).
2. Average Brightness is the average of brightness value at location 1 to 5 with all pixels
displaying white.
B1 + B2 + B3 + B4 + B5
B(AVE) =
5
3. The variation in surface brightness, SB
V
is defined as :
Maximum (B
1
, B
2
, ....B
13
) - Minimum (B
1
, B
2
, ....B
13
)
Average (B
1
, B
2
, .... B
5
)
Where B1 to B13 are the brightness with all pixels displaying white at 13 locations.
256
512
20mm
20mm
192
384
576
( pixel)
5
4
3
13
12
11
10
9
8
7
6
2
1
768
4. The response time is defined as the following figure and shall be measured by switching
the input signal for ”black” and ”white”.
Tr
R
Tr
D
100
90
10
0
%
Optical
Response
white
black
white
×
Alpha Point Ltd.
P.O. Box 41
00751 Helsinki, Finland
http://www.
alpha.fi
Tel.: +
358-9-34 64 34 1
Fax: +
358-9-34 64 34 2
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