LCX026BLT データシートの表示（PDF） - Sony Semiconductor

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LCX026BLT

2.3cm (0.9-inch) Black-and-White LCD Panel

Sony Semiconductor 

LCX026BLT

2. Optical Transmittance

Optical Transmittance (T) is given by the following formula (2).

White luminance

T=

× 100 [%] ... (2)

Luminance of light source

"White luminance" means the maximum luminance on the screen at the input signal amplitude VAC = 0.5V

on Measurement System I.

3. V-T Characteristics

V-T characteristics, or the relationship between signal

amplitude and the transmittance of the panels, are

measured by System II by inputting the same signal

amplitude VAC to each input pin. V90, V50, and V10

correspond to the voltages which define 90%, 50%,

and 10% of transmittance respectively.

90

50

10

V90 V50 V10

VAC – Signal amplitude [V]

4. Response Time

Response time ton and toff are defined by

formulas (5) and (6) respectively.

ton = t1 – tON ...(5)

toff = t2 – tOFF ...(6)

4.5V

t1: time which gives 10% transmittance of 7.0V

the panel.

t2: time which gives 90% transmittance of

the panel.

0V

The relationships between t1, t2, tON and

tOFF are shown in the right figure.

Input signal voltage (Waveform applied to the measured pixels)

0.5V

Optical transmittance output waveform

100%

90%

10%

0%

tON t1

ton

tOFF t2

toff

– 13 –

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