Custom multicolor backlit FSTN LCD for HF QRP transceiver project

In order to fulfill all the requirements to show different modes and parameters we decided to make our own liquid crystal display.

lcd-v006 lcd-v006-pins

It is designed and built on the well proved – FSTN technology with high visibility and contrast.

Technical data:
LCD type                   FSTN
Mode                          positive
Poarizer type            transflective
View direction         12h
Connect type            pin
Glass thickness        1.1mm
Working Voltage     3/5V
Multiplex level        32/5
Operating temp      0 – 50C
Storage temp
Content                   Digits/Symbols
Measures                114.3 x 27.94mm
num of symbols    149
backlight type       LED multicolor

It was firstly designed with 5 multiplex lines but soon after receiving first samples it turned out that this is not suitable as there is no driver chips on the market with 5 multiplex lines so we redesign the LCD with 40/4 so the most common Phillips chip can drive it.

lcd-gd04611face-plate-new-cpu-front-pcb

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