White Color Uniformity; Purity; Response Time; Viewing Angle - Hitachi 14LD7200 Service Manual

3.5 WHITE COLOR UNIFORMITY

The deviation of the white color coordinates at the 4 positions (1)....(4) should not exceed
± 0.020 with respect to the measurement at the center position(5).

3.6 PURITY

Purity is defined as the uniformity of the chromaticity of the three primary colors. The
Deviation of the color coordinates of the primary colors red/green/blue at the 4 positions
(1)...(4) should not exceed ± 0.020 with respect to the measurement at the center position(5)

3.7 RESPONSE TIME

The response time of the display for
time is measured from 90% to 10% (tr) and from 10% to 90% (tf) for a transition from white
(100%) to black (0%) to white (100%)

3.8 VIEWING ANGLE

Panel
Fujitsu

3.9 SURFACE TREATMENT OF FRONT POLARIZER

The front polarize should have hard coating (3H) and anti-glare treatment.

4. AUDIO Electrical Performance

4.1 STANDARD TESTING CONDITIONS :

Test Equipment ﹕ Audio Analyzer test equipment
4.1.1
4.1.2 Conditions of Input Signal
1). Input Impedance ﹕ 600 ohm
2). Input Level ﹕ 700m Vrms ± 10％
3). Signal Frequency ﹕ 1 KHz
Fujitsu
Horizontal view angle
160
should be better than 15ms typ. The response
Vertical view angle at CR >10
160
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