tft-lcd 7 inch for the bone
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euge euge
Dec 21, 2011, 11:16:16 AM12/21/11
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Hello, I'm going to try to attach a 7 inch tft lcd to the bone.
The first thing I met reading the screen datasheet is that I have to
feed all the bias voltages.to the tft myself.
So I have to put the AVDD, Vgth, and Vgtl (negative) , the backlight
led current, the digital voltage and the common voltage VCOM.
As if this wasn't enough the power has to be feed to the lcd sequentally.
I have seen some chips that help to do this task giving avdd,vgth,vgtl
and vcom like tps65105 but it's not in stock anywhere.
Anyone experienced with this knows alternatives? The old chips I have
seen doesn't go up to the 10 volts needed for avdd.
The first thing I met reading the screen datasheet is that I have to
feed all the bias voltages.to the tft myself.
So I have to put the AVDD, Vgth, and Vgtl (negative) , the backlight
led current, the digital voltage and the common voltage VCOM.
As if this wasn't enough the power has to be feed to the lcd sequentally.
I have seen some chips that help to do this task giving avdd,vgth,vgtl
and vcom like tps65105 but it's not in stock anywhere.
Anyone experienced with this knows alternatives? The old chips I have
seen doesn't go up to the 10 volts needed for avdd.
Thx
sal...@hello-lighting.com
May 10, 2019, 1:19:12 PM5/10/19
to BeagleBoard
a DC-DC boost IC can do this job. such as
i'm working in www.hello-lighting.com, as a LCD/TFT engineer, any question about LCD/TFT, you can write to me.
best regards!
在 2011年12月22日星期四 UTC+8上午12:16:16，euge euge写道：
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