LC201V02 Просмотр технического описания (PDF) - Philips Electronics

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LC201V02

Liquid Crystal Display

Philips Electronics 

Product Specification

LC201V02

Liquid Crystal Display

Notes 1. Contrast Ratio(CR) is defined mathematically as :

Surface Luminance with all white pixels

Contrast Ratio =

Surface Luminance with all black pixels

It is measured at center point(1).

2. Surface luminance is luminance value at center point (1) across the LCD surface 50cm

from the surface with all pixels displaying white. For more information see FIG 2.

3. The variation in surface luminance , δ WHITE is defined as :

δ WHITE(5P) = Maximum(Lon1,Lon2, Lon3, ...... , Lon5) / Minimum(Lon1,Lon2, Lon3, ..... , Lon5)

Where Lon1 to Lon5 are the luminance with all pixels displaying white at 5 locations

4. Response time is the time required for the display to transition from black to white(Rise

Time, TrR) and from white to black(Decay Time, TrD). For additional information see FIG 3.

5. Viewing angle is the angle at which the contrast ratio is greater than 10. The angles are

determined for the horizontal or x axis and the vertical or y axis with respect to the z axis which

is normal to the LCD surface. For more information see FIG 4.

6. Gray scale specification

Gamma Value is approximately 2.2. For more information see Table 11.

Table 11. Gray Scale Specification

Gray Level

L0

L15

L31

L47

L63

L79

L95

L111

L127

L143

L159

L175

L191

.

L207

L223

L239

L255

Luminance [%] (Typ)

0.29

0.42

0.95

2.36

4.72

7.82

11.7

16.3

21.8

28.2

35.6

43.5

52.4

62.6

74.1

86.2

100

Ver. 0.1

Jan. 17, 2003

16 / 26

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