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LCD panel selection

Narendra Kulkarni29
Intellectual 590 points
Other Parts Discussed in Thread: TM4C129XNCZAD

hello,

We are working on a product with LCD using TM4C129XNCZAD micro-controllers. We are looking at 480x272 resolution.  The DK board has  a Kentec LCD panel with 320x240 resolution.  Can some suggest  LCD panels that are suitable with TM4C controllers.

Narendra

  • 0
    Guru 117855 points

    Two quick comments - usually - but not always - your 480x272 pixel array is confined to TFTs of 4.3 or 5.0" diagonal.

    Due to cell-phone expansion - such displays have been surpassed by 800x480 pixel arrays (and perhaps few variants) - in the same (physical size)!     Such improvement is most notable!   

    Beyond "added pixels" many such panels now include, "data-bus compatible - in-built controllers" - which include & manage the frame buffer.      Such proves a, "big-deal" as your connection interface is vastly eased/simplified - and far less "demand" is placed upon the MCU. 

    Perhaps your "look at displays" may benefit - now armed with such (new) knowledge...

  • 0
    TI__Guru**** 244400 points
    Hello Narendra

    You can look at the 640x480 Panels as well.

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Guru 47900 points
    Such "640x480" panels usually "start" at/around 5.7" diagonal - larger than poster's (unexpressed yet expected) 4.3" target...
  • 0 in reply to cb1
    TI__Guru**** 244400 points
    Hello cb1,

    Yes, lets wait for the size expectation!!!

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Guru 47900 points

    May I place 10 (USD) on 4.3"? (in this case - dreaded outsider has, "inside info!")     

  • 0 in reply to cb1
    TI__Guru**** 244400 points
    No wagers. Only data.
    And while we are it, the poster need to clarify, interface type, RGB format and other details that are needed more than just size of panel.

    Regards
    Amit
  • 0 in reply to Amit Ashara
    Guru 47900 points
    Note that the (suggested) "data-bus compatible - in-built controller/frame buffer" escapes the need for such, "clarification."

    And spectacularly eases the set-up/config of such panels - while greatly reducing the "added memory component & interconnect burden!"
  • 0 in reply to cb1
    Intellectual 590 points

    We are looking at 4.3" TFTpanel 24 bit RGB, preferably parallel interface and an in built controller with RAM.

  • 0 in reply to Narendra Kulkarni29
    Guru 117855 points

    Narendra Kulkarni29 said:
    We are looking at 4.3" TFTpanel...

    Mais certainement mon ami - mais certainement!      (cb1's wallet struggles to close - "fattened by 10 USD")

    Parallel interface may not prove as "clear" as you like - "data bus compatible" (as was suggested) better defines - does it not?

    Local distributor (disty) should be able to survey - and advise.     Do keep in mind that your product must "compete" against encroaching cell-phones - and all modern ones have long exceeded 480x272!      (thus making your (earlier, 480x272) pixel array appear "sparse" in comparison)      This is an unfortunate reality - which I urge you to fairly consider.     (i.e. so often the display serves as, "heart/soul" of the product!)   

    A "good" disty should be able to locate enhanced pixel array AND "data bus compatible" for bit higher cost.      (trust me - you'll get to market so much faster - and save so much time/effort/development costs - by adopting a display which includes such, "in-built, data-bus compatible, controller!)

  • 0 in reply to Narendra Kulkarni29
    TI__Guru**** 244400 points
    Hello Narendra,

    You may want to check Kentec Displays.

    www.kentecdisplay.com/.../K430WQC-V3-FF-01%28KED%29.pdf

    Amit to cb1 :-)

    Regards
    Amit