Revision Ver 1.0 October 14, 1998

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

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”.

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