REV
P0
ISSUE DATE
2011.09.07
PRODUCT GROUP
TFT-LCD PRODUCT
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 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.
Luminance when displaying a white raster
CR
=
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
measurements per display.
4. The White luminance uniformity on LCD surface is then expressed. (See FIGURE 2)
Minimum Luminance of 5(or 13) points
Uniformity ΔY =
X 100 (%)
Maximum Luminance of 5(or 13) points
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.
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 (YB) of that same area when any adjacent area is driven dark. (See FIGURE 4 ).
SPEC. NUMBER
PAGE
10 / 31
SPEC. TITLE
HX104X02-100 Preliminary Product Specification
TD-0008369
B2005-C001-C(3/3)
A4(210 X 297)
AZDISPLAYS [ AZ DISPLAYS ]
