5 ms·
If they were using standard connectors for the display, why would having long life span be useful? I can just use a newer one (better specs) when time comes and
by slug 11y ago
If they were using standard connectors for the display, why would having long life span be useful? I can just use a newer one (better specs) when time comes and can swap with a new one from another vendor if needed be.
I spent this weekend creating a small micro-controller system (freescale uC) with an attached tft lcd+touch, the latter cost me less than a 1/4 of this display and uses standard connections and readily available datasheets.
In their own words, the raspberry pi display uses interface signals that most other manufactures shunned due to several issues (EMI,etc) and their connector is hard to find on any other sbc currently in the market.
The display is huge compared to the raspberry pi board, what is the use case, considering the low resolution? Why go through all the trouble of using the connector on the pi instead of its other standard hdmi port ?
- joezydeco 11y agoI think we're confusing "lifetime" in the reliability sense with "lifetime" meaning how long this particular LCD part will be available from the supplier. I've been working with these types of LCDs for a long time, and when it comes to these WVGA/SVGA 7" units you can get a ton from Asia at great prices but the factory will literally disappear in a few months. The LCD fabs constantly get bought/sold/churned as the major players like Sharp and LG shed off their last-generation fabs and the other smaller fish scoop them up. Ideally a group like RPi will want to have the same part available for a long time so that they don't need to create new revisions of the interface cables, power supplies, or software drivers to handle the change. It's nearly impossible to autodetect one 7" LCD from another via software so you need to configure it entirely in a bootloader or kernel configuration line. And then that becomes a massive support issue.