SPEC No.

LCY-12T09303B

MODEL No.

LS013B4DN02

PAGE

21

7. Optical characteristics

Table 7-1

Ta=25

℃

Item

Symbol

MIN.

TYP.

MAX.

unit

Remark

H

θ21,θ22

60

°(degree)

θ11

60

°(degree)

Viewing angle

CR≧3

V

θ12

60

°(degree)

[Remark7-1]

Contrast ratio

CR.

5

10

[Remark7-2､3]

Reflecivity ratio

R

50

%

[Remark7-3]

Rise

τr

50

ms

Response time

Fall

τd

50

ms

[Remark 7-3,4]

x

0.313

[Remark7-3]

Panel

Chromaticity

White

y

0.338

[Remark7-3] Optical characteristics measurement equipment.

Figure 7-2 is for contrast ratio, reflectivity ratio, and panel chromaticity measurement, and figure 7-3 is for

response time measurement. Both are to be conducted in a dark or room equipment to a dark room

Measurement equipment

(LCD-5200)

Measurement equipment

(CM-2002)

Normal line

Normal line

LCD panel

Light source

-30°

Light

receiver

Light receiver

Light source

Integrating

sphere

LCD panel

Display center

Display center

Fig7-2 Contrast ratio, Reflection ratio, Panel chromaticity of white

Fig7-3 response time