Skip to main content

Character LCDs
Character LCDs

Community forum and FAQ on Character LCDs by Displaytech

Definitions:
Category
Product

can't read ILI9341 LCD controller ID4 (D3H) by SPI interface

I have tried to read ILI9341 LCD controller ID (D3H), but it doesn’t work until now, the EXTC has been high, the result as below:

1. The leve1 command read/write is OK. The leve2 command (EXTC should be high to enable this command) write is OK, read by FMC port is OK but read by SPI is fail.

2.ID1/ID2/ID3 (leve1 command DAH/DBH/DCH) can be programmed by user(level2 command D1H/D2H) successfully .

3. The LCD acknowledges data is different between FMC port and SPI port, for example the 09H command, the first byte data will be invalid, when read by FMC... (More)

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 ?

What is the maximum storage temperature for the 162C BC BC?

Our 162C BC BC is our part number that is considered "Normal" Operating and Storage temperature, as noted in page 3 of the data sheet under Absolute Maximum Ratings, so has a maximum storage temp of -10 to +60C. 

Our 162C BC BW indicates it has "Wide" Operating and Storage temperature, with a max storage temp of -30 to +80C.

How are the monochrome modules named?

The Displaytech monochrome LCD part numbers follow a standard system. The first set of numbers is for the product series:

Character Modules
The numbers stand for the number of characters
(e.g. 161 = 16 characters x 1 line; 204 = 20 characters x 4 lines)

Graphic Modules
The numbers stand for the display resolution (e.g. 64128 = 64x128 dots; 128240 = 128x240 dots). The letter stands for the version (e.g. both 64128K & 64128M are with the same resolution, but the size of them are different, so they are with different letter as identification)

The remaining details for the other... (More)