Specifications
ELECTRO-OPTICAL CHARACTERISTICS
Item of
electro-optical
characteristics
Symbol Condition Min Typ Max Unit Remark Note
Response time Tr+ Tf - 418 627 ms Fig.1 4
Contrast ratio Cr 3 6 - --- FIG 2. 1
Luminance
uniformity
δ WHITE
67 74 - % FIG 2. 3
Surface
Luminance
Lv
θ=0°
∅=0°
Ta=25
73 91 - cd/m
2
FIG 2. 2
∅ = 90°
41 51 - deg FIG 3.
∅ = 270°
70 80 - deg FIG 3.
∅ = 0°
42 52 - deg FIG 3.
Viewing angle
range
θ
∅ = 180°
49 59 - deg FIG 3.
6
Note1. Contrast Ratio(CR) is defined mathematically by the following formula. For more
information see FIG 2.:
Average Surface Luminance with all white pixels (P 1,P2, P 3,P4, P5)
Average Surface Luminance with all black pixels (P1, P2, P 3,P4, P5)
Note2. Surface luminance is the LCD surface from the surface with all pixels displaying white.
For more information see FIG 2.
Lv = Average Surface Luminance with all white pixels (P1, P2, P 3,P4, P5)
Note3. The uniformity in surface luminance δ WHITE is determined by measuring luminance at
each test position 1 through 5, and then dividing the maximum luminance of 5 points luminance by
minimum luminance of 5 points luminance. For more information see FIG 2.
Minimum Surface Luminance with all white pixels (P
1
, P
2
, P
3
,P
4,
P
5
)
Maximum Surface Luminance with all white pixels (P
1
, P
2
, P
3
,P
4,
P
5
)
Note4. Response time is the time required for the display to transition from White to black(Rise
Time, Tr) and from black to white(Decay Time, Tf). For additional information see FIG 1..
Note5. CIE (x, y) chromaticity ,The x,y value is determined by screen active area position 5. For
more information see FIG 2.
Note6. Viewing angle is the angle at which the contrast ratio is greater than 2. For TFT module the
conrast ratio is greater than 10. The angles are determined for the horizontal or x axis and the
vertical or y axis with respect to the z axis which is normal to the LCD surface. For more
information see FIG 3.
Note7. For Viewing angle and response time testing, the testing data is base on Autronic-Melchers’s
ConoScope. Series Instruments. For contrast ratio, Surface Luminance, Luminance uniformity and
CIE the testing data is base on TOPCON’s BM-5 photo detector.
Note8. For TFT transmissive module, Gray scale reverse occurs in the direction of panel viewing
angle.
Contrast Ratio =
δ WHITE =
P.7
MULTI-INNO TECHNOLOGY CO.,LTD.
MODULE NO.: MI12864J-G-1
Ver 1.0