PRODUCT GROUP

REV

ISSUE DATE

TFT-LCD PRODUCT

2009.02.17

P3

Note : 1. Viewing angle is the angle at which the contrast ratio is greater than 10. The viewing are

determined for the horizontal or 3, 9 o’clock direction and the vertical or 6, 12 o’clock

direction with respect to the optical axis which is normal to the LCD surface .

(see FIGURE 1)

2. Contrast measurements shall be made at viewing angle of Θ= 0

° and at the center of the

LCD

f

L

i

h ll b

d i h ll i l i

h

i

fi ld

fi

hi

LCD surface. Luminance shall be measured with all pixels in the view field set first to white,

then to the dark (black) state. (See FIGURE 1)

Luminance Contrast Ratio (CR) is defined mathematically.

CR

=

Luminance when displaying a white raster

Luminance when displaying a black raster

3. Luminance of white is defined as a luminance value of a point across the LCD surface.

Luminance shall be measured with all pixels in the view field set first to white.

This measurement shall be taken at the locations shown in FIGURE 2 for a total of the

4. The White luminance uniformity on LCD surface is then expressed. (See FIGURE 2)

5. The color chromaticity coordinates specified in Table 4 shall be calculated from the

spectral data measured with all pixels first in red, green, blue and white. Measurements

shall be made at the center of the panel

Uniformity ΔY =

Minimum Luminance of 5(or 13) points

X 100 (%)

Maximum Luminance of 5(or 13) points

shall be made at the center of the panel.

6. The electro-optical response time measurements shall be made as FIGURE 3 by switching

the data input signal OFF and ON. The times needed for the luminance to change from

10% to 90% is Tr, and 90% to 10% is Td.

7. Cross-Talk of one area of the LCD surface by another shall be measured by comparing the

luminance (YA) of a 25mm diameter area with all display pixels set to a gray level to the

luminance (YA) of a 25mm diameter area, with all display pixels set to a gray level, to the

luminance (YB) of that same area when any adjacent area is driven dark. (See FIGURE 4 ).

PAGE

SPEC. TITLE

HX104X01-210 Preliminary Product Specification

10 / 30

B2005-C001-C(3/3)

SPEC. NUMBER

TD-0006788

A4(210 X 297)