LM185WH2 datasheet(22/31 Pages) LG

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Product Specification

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LM185WH2

Liquid Crystal Display

Ver. 1.0

JUN., 21, 2010

6. Luminance Uniformity - angular – dependence (LR& TB)

V/2

H/10

V/10

< Luminance uniformity - angular dependence measuring point >

Notes :

FIG. 11 Luminance Uniformity angular dependence

Table 11. Gray scale

7. Gray scale specification

74.15

L223

100

L255

11.06

L95

21.13

L127

38.44

L159

52.50

L191

4.43

L63

0.97

L31

0.10

Luminance [%] (Typ)

Gray level

TCO 5.0 Luminance uniformity – angular dependence, is the capacity of the FPD to

maintain a certain luminance level independently of the viewing direction, The

angular-dependent luminance uniformity is defined as the ratio of maximum

luminance to minimum luminance in the specified measurement areas.

- Test pattern

: Full white 4˚× 4˚square size, back ground shall be set to 80%

image loading, RGB 204, 204, 204

- Test luminance : ≥150cd/㎡

- Test point

: 5-point

- Test distance : D * 1.5 = 87.63㎝

- Test method

: L

R = ((Lmax.+30deg. / Lmin. +30deg.) + (Lmax. -30deg. / Lmin. -30deg.)) / 2

B = ((Lmax.+15deg. / Lmin. +15deg.)

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