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Just wondering if you can give us the part number/names?
No, I'm afraid not.
Originally Posted by Abdol
If you look at the video you can see how better the B&W screen is compared to blue... and that's not OLED.
Yes, you can also replace the original screens in other retro handheld consoles (Sega GameGear, Atari Lynx, etc.) with brighter, more responsive, lower energy consuming alternatives.
However, unless there is a hidden Easter Egg in the instrument that I'm not aware of, I don't believe it's possible to play Mario on an MP7SE. Therefore, the merits of swapping out the original display with an alternative part are not so compelling.
But bothered by blue, I imagine there might be a piece of plastics to cover and change color and improve contrast.
All color displays I have owned with backlit, the backlit itself is adjustable as well. So you can try back and forth to get blackness and brightness optimized. Maybe that is something firmware for MP7SE can fix if some feel contrast is weak.
As a Kawai rep here, KJ would never encourage us to do such a thing. To figure this out, someone needs to investigate the internals of each keyboard, find the model/brand of the screens, and the chips they use.
The nice thing with OLED is that there is no "backlight". So it won't bother eyes as much as a backlit graphic display (with blue backlight!) does.
BTW blue is the worst light you can use on a screen:
If they are different as KJ says, you’d need is an oscilloscope to ‘sniff’ the serial commands to the LCD driver. This basically decodes what serial commands it’s sending to the chip to display different things. You then tack-on an add-on circuit to translate the commands to a different serial protocol to drive, for example, a nice OLED display.
You could take your MP7SE apart... post detailed pics... perhaps there is a ‘standard’ replacement part out there somewhere with a different coloured backlight.
Even if it’s not possible, it’s all interesting and gets the brain working.
Learning to play. Consciously incompetent, which apparently is a good starting point.