Author Topic: Is it possible to replace the LCD Screen to a better one?  (Read 10384 times)

superfenix2020 (OP)

  • Posts: 243
Is it possible to replace the LCD Screen to a better one?
« on: August 14, 2015, 11:04:24 am »
Is it possible to replace the LCD Screen to GCW-Zero to a better one?
?screen IPS?



Is valid this screen for GCW-Zero?
I think the band is 54pins

CHIMEI
TFT
LQ035NC11
Panel Model: LQ035NC11
Panel Type: a-Si TFT-LCDPanel
Panel Size: 3.5 inch
Resolution: 240(RGB)*320
Display Mode: TN, Normally White, transflective
Brightness: 225 cd/m2 (Typ.)
Contrast Ratio: 80 : 1 (Min.) (Transmissive)
Lamp Type: 6S1P WLED

http://es.aliexpress.com/store/product/Free-shipping-3-5-inch-lcd-screen-lcd-display-lcd-panel-replacement-CHIMEI-LQ035NC111-with-320x240/626668_1094253257.html

http://es.aliexpress.com/store/product/Color-TFT-Display-3-5-inch-lcd-screen-lcd-display-lcd-panel-replacement-CHIMEI-LQ035NC111-with/118471_32359487955.html
« Last Edit: August 14, 2015, 11:08:07 am by superfenix2020 »

pcercuei

  • Posts: 1673
    • My devblog
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #1 on: August 14, 2015, 02:06:02 pm »
It's not possible.

You would have to write a kernel driver to make it work.
Besides, it's a 240x320 screen, not 320x240. So it's a vertical screen, not horizontal.

superfenix2020 (OP)

  • Posts: 243
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #2 on: August 14, 2015, 04:11:46 pm »
And is there any compatible display with the Zero?

superfenix2020 (OP)

  • Posts: 243
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #3 on: September 13, 2015, 09:45:54 am »
sorry, the correct resolution to screen is 320x240 not 240X320

I think that these screens that I put above, it work well at GCW.

also I have seen them here:
http://www.ebay.es/itm/170723105000?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT
http://www.ebay.es/itm/301246654696?_trksid=p2055119.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

LCD 320x240 LQ035NC111


nielo360

  • Posts: 493
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #4 on: September 13, 2015, 01:49:38 pm »
good job! how much better is the screen in terms of color quality? can you post a comaprison pic or the full asembled version? also is it difficult to mod the screen?

darth_llamah

  • Posts: 311
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #5 on: September 13, 2015, 05:45:36 pm »
sorry, the correct resolution to screen is 320x240 not 240X320

I think that these screens that I put above, it work well at GCW.
If pinouts, dimentions and/or flex ribbon placement differ between modules you'll have a hard time attaching new lcd to GCW (and also custom kernel would be required).

Niko

  • Posts: 18
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #6 on: September 14, 2015, 01:33:43 pm »
sorry, the correct resolution to screen is 320x240 not 240X320

I think that these screens that I put above, it work well at GCW.
If pinouts, dimentions and/or flex ribbon placement differ between modules you'll have a hard time attaching new lcd to GCW (and also custom kernel would be required).

not necessarily, alot of generic screen drivers are built in the kernel by default.

pcercuei

  • Posts: 1673
    • My devblog
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #7 on: September 14, 2015, 01:49:14 pm »
not necessarily, alot of generic screen drivers are built in the kernel by default.

Maybe in your Ubuntu. Not in OpenDingux.

mth

  • Posts: 317
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #8 on: September 16, 2015, 02:03:05 am »
The assembled panel in the Zero is King Display KD035G6-54NT-A1, with the Novatek NT39016D driver IC inside. According to the tech info ZIP linked from Ebay, this panel uses the same LCD driver IC. The pinout of the ribbon cable also looks the same at a cursory glance, so there is a chance this could actually work. No guarantees, but if you can afford it not working, you could try.

I don't know if that linked display would be better than the one the Zero has though. The specs in the data sheet are suspiciously exactly equal to the KD panel, so it's possible they're actually the same panel sold under different brands.

superfenix2020 (OP)

  • Posts: 243
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #9 on: September 16, 2015, 10:12:55 am »
this is what I think.

Also for 10 $ that it costs, I do not lose anything.

And more, if it turns out to be a bit better than the original one. If it turns out to be equal, since it already will have screen of spare/replacement for the future, for if it was failing.

As I have understood, the last GCW-Zero consoles take a panel that turns out to be a little better than the one that they sold to themselves previously. is that true?
Also I have thought, to change the loudspeakers of the GCW-Zero to original speakers of PSP Go, who sound much better and more fortresses. I think that they will fit.
« Last Edit: September 16, 2015, 10:15:06 am by superfenix2020 »

mth

  • Posts: 317
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #10 on: September 16, 2015, 12:12:04 pm »
As I have understood, the last GCW-Zero consoles take a panel that turns out to be a little better than the one that they sold to themselves previously. is that true?

The only thing I know about is that after the prototype stage the plastic in front of the screen was changed. The new type is of better quality, both more scratch resistant and more transparent, so the same screen looks better behind it.

Niko

  • Posts: 18
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #11 on: September 16, 2015, 02:13:42 pm »
Keep us posted. I'd be curious to know if this works, and how the quality compares.

Ryvan

  • Posts: 55
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #12 on: September 27, 2015, 06:14:20 pm »
Probably a lot of "better" screens could be used (driver, hardware & software, issues aside),
but you still have a number of things to consider:

- diagonal size
- color depth (18-but, 24-bit, etc)
- backlight options
- transmissive vs transflective
- power consumption
- unit cost

For example, this -> https://www.crystalfontz.com/product/cfaf320480c4035t-lcd-tft-320x480-display-module
The lcd itself (raw?) is~$30 (assuming it's in stock, not incl. shipping, etc). However it's Transmissive, an odd size, would probably require a driver board plus software, etc.

Atlantis_Risen

  • Posts: 535
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #13 on: September 27, 2015, 07:50:37 pm »
What would the benefit be to replacing the Zero's screen?  The stock one seems great.  More resolution would be a bad thing IMO, it would just mean more ugly scaling.

Ryvan

  • Posts: 55
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #14 on: September 28, 2015, 02:18:30 am »
While more scaling generally produces additional distortion, maintaining the ratio (4:3 or 16:9) is a little more important than the exact size. FWIW I think the Zero would be wasted if you restricted yourself only to emulators of games that haven't been -new- for  anywhere between 10-40 years. A relatively small jump in size to 640x480 would offer a lot more Flex in UI space and loosen the constraints of developing indie (read: new) games for it. Just because the designer was chiefly concerned with the ideal setup for games where 320x240 is the native resolution doesn't make the screen ideal for every conceivable, practical use of the Zero.

David Knight

  • Posts: 577
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #15 on: September 28, 2015, 08:03:08 am »
While more scaling generally produces additional distortion, maintaining the ratio (4:3 or 16:9) is a little more important than the exact size. FWIW I think the Zero would be wasted if you restricted yourself only to emulators of games that haven't been -new- for  anywhere between 10-40 years. A relatively small jump in size to 640x480 would offer a lot more Flex in UI space and loosen the constraints of developing indie (read: new) games for it. Just because the designer was chiefly concerned with the ideal setup for games where 320x240 is the native resolution doesn't make the screen ideal for every conceivable, practical use of the Zero.

A jump to 640x480 would also require 4x as many pixels so more power, slower frame rate.

Ryvan

  • Posts: 55
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #16 on: September 28, 2015, 01:54:39 pm »
Does it really make that much of a difference? I am fairly ignorant of the exact hardware details of the Zero (beyond the specs), but there are plenty of regular computers with less cpu and ram that have no real difficulty with much higher resolutions. I recognize that the there will be a performance cost, but I don't that's the chief or overriding issue at hand here.

Surkow

  • * Administrator
  • Posts: 669
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #17 on: September 28, 2015, 11:03:43 pm »
Does it really make that much of a difference? I am fairly ignorant of the exact hardware details of the Zero (beyond the specs), but there are plenty of regular computers with less cpu and ram that have no real difficulty with much higher resolutions. I recognize that the there will be a performance cost, but I don't that's the chief or overriding issue at hand here.
Pushing four times as many pixels will definitely result in performance loss. In practice, applications using 320x240 could be scaled without performance penalty by the IPU using nearest-neighbour interpolation before it reaches the LCD.

Logan_5

  • Posts: 11
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #18 on: October 05, 2015, 04:59:17 pm »
I can confirm that this panel does work. Here's a link to the one I bought:

http://www.ebay.com/itm/170723105000
3.5" Inch QVGA 240x320 TFT Color LCD Display Module LQ035NC111 54pin

That said, it basically looks identical to the original except that it appears just a bit dimmer when doing a comparison between it and an original screen (I have two GCWs). I just installed it yesterday so I haven?t done any extensive tests, but to me, it seems to be the same as the original LCD. 

com64

  • Posts: 82
    • 0x64.ca
Re: Is it possible to replace the LCD Screen to a better one?
« Reply #19 on: October 07, 2015, 09:02:57 pm »
I have a few of these screens laying around and in a few projects; as far as I can tell the colour depth is kinda crap, but it could have just been cheap driver boards.

 

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