1. True black background color
2. Same effect as Black masking LCD without light leakage of off segments
3. High contrast : around 1000 :1
4. Wide viewing angle
5. Wide operating temperature
Disadvantages:
1. Reverse image a certain viewing angle
2. Needed higher Vlcd (4.5 volts at 1/4duty, 10volts at 1/16duty)
3. Up to 1/16duty
4. Negative type LCD
Applications :
• Medical
• Automotive
• White goods
• Instruments
• 8 Color Display at R,G,B LED Backlight
• So high Contrast (above 1000:1) and Wide Viewing Angle
• Static driving
• Extreme Brightness : 800 to 1000cd/m2 on LCD
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