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Low power color TFT displays

Often an important constraint for industrial application is power consumption.

Passive monochrome LCDs will usually use less power, than TFT displays. Hence many customers looking for suitable displays for industrial application had to use traditional monochrome LCDs if they wanted to add a display to their application. 

With the new generation of low power TFT displays, this could change. Low power applications will become colorful. 

Following is an example of a transflective TFT display which can be used both with and without backlight illumination. The powering off of the backlight will save further power and can also be useful in sunlight environments, where enough light is available. 

Traditional TFT displays are transmissive, they can only be read with the help of a backlight. Transflective displays combine the advantages of transmissive displays (they can be read in the dark with the help of a backlight), with the advantages of reflective displays (they can be read without backlight). 


Current consumption values

(with 1.8 V supply voltage)

200 micro A in hyper mode

19-50 micro A in low power mode


Technical Specification

Parameter Value
Size  1.28"
Resolution 176 * 176
Color Depth 64 Colors
Interface SPI
Technology Type a-Si TFT
Sub Pixelsize 0.1308*0.1308 mm
Display Mode Half the semi-premeable
Viewing Direction ALL
LCM (W * H * D) 26.62*29.72*1.45 MM
Active Area (W * H) 23.02*23.02 MM
Operating Voltage 1.8 – 3.6 v
Operating Temp -20°C ~ 70°C
Driver IC ST7301


With backlight:

Without backlight:

Bar type TFT for electronic shelf labeling
13" E-Paper module


LCD Mikroelektronik GmbH
Otto-Lilienthal-Str. 13
76275 Ettlingen


Telefon: +49(0)7243-76888-0
Telefax: +49(0)7243-76888-29

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