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Topics, questions, and discussion around Displaytech and HDP Power products

Sarah replied 6 days ago
Discussion
Character LCDs

LCD background lightness

Hello

I wish to buy some 16x2 characters LCD displays like the 162J. I need the best readability by low light with backlight switched off, so the background have to be very clear (I mean closest to white).

For example most calculators LCD displays are very good with a light gray background. But many avalaible 16x2 displays have a green background which is too dark.

I'm a bit confused by all the 162x variants and by the LCD technologies (TN, HTN, FSTN). Which one will be the best for that purpose ?

Terry replied 11 days ago

Difference between DT028ATFT & DT028BTFT

Hello,

i have question about your DT028ATFT and DT028BTFT display. I ask about non touchpanel displays versions. Is there any migration note between those two display? If not what's the difference between those displays?

 

Geoffrey liked a reply 24 days ago
Discussion
TFT Displays

VCOM max current draw and LED- wiring of the display DT070BTFT-PTS1

This is my first time wiring a TFT display and I have some questions about the display DT070BTFT-PTS1 :

  • What is the maximum current draw from the display VCOM input supply ?
  • Should LED- (pins 31 and 32) be connected to GND ?
  • Should we provide external resistor to limit the current of the backlight LEDs ?
  • Is it OK if my PSU 9.6V is shared between AVDD supply and VL (= 'LED+' - 'LED-')

Thanks in advance,

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