element14 Community
element14 Community
    Register Log In
  • Site
  • Search
  • Log In Register
  • Community Hub
    Community Hub
    • What's New on element14
    • Feedback and Support
    • Benefits of Membership
    • Personal Blogs
    • Members Area
    • Achievement Levels
  • Learn
    Learn
    • Ask an Expert
    • eBooks
    • element14 presents
    • Learning Center
    • Tech Spotlight
    • STEM Academy
    • Webinars, Training and Events
    • Learning Groups
  • Technologies
    Technologies
    • 3D Printing
    • FPGA
    • Industrial Automation
    • Internet of Things
    • Power & Energy
    • Sensors
    • Technology Groups
  • Challenges & Projects
    Challenges & Projects
    • Design Challenges
    • element14 presents Projects
    • Project14
    • Arduino Projects
    • Raspberry Pi Projects
    • Project Groups
  • Products
    Products
    • Arduino
    • Avnet & Tria Boards Community
    • Dev Tools
    • Manufacturers
    • Multicomp Pro
    • Product Groups
    • Raspberry Pi
    • RoadTests & Reviews
  • About Us
  • Store
    Store
    • Visit Your Store
    • Choose another store...
      • Europe
      •  Austria (German)
      •  Belgium (Dutch, French)
      •  Bulgaria (Bulgarian)
      •  Czech Republic (Czech)
      •  Denmark (Danish)
      •  Estonia (Estonian)
      •  Finland (Finnish)
      •  France (French)
      •  Germany (German)
      •  Hungary (Hungarian)
      •  Ireland
      •  Israel
      •  Italy (Italian)
      •  Latvia (Latvian)
      •  
      •  Lithuania (Lithuanian)
      •  Netherlands (Dutch)
      •  Norway (Norwegian)
      •  Poland (Polish)
      •  Portugal (Portuguese)
      •  Romania (Romanian)
      •  Russia (Russian)
      •  Slovakia (Slovak)
      •  Slovenia (Slovenian)
      •  Spain (Spanish)
      •  Sweden (Swedish)
      •  Switzerland(German, French)
      •  Turkey (Turkish)
      •  United Kingdom
      • Asia Pacific
      •  Australia
      •  China
      •  Hong Kong
      •  India
      • Japan
      •  Korea (Korean)
      •  Malaysia
      •  New Zealand
      •  Philippines
      •  Singapore
      •  Taiwan
      •  Thailand (Thai)
      • Vietnam
      • Americas
      •  Brazil (Portuguese)
      •  Canada
      •  Mexico (Spanish)
      •  United States
      Can't find the country/region you're looking for? Visit our export site or find a local distributor.
  • Translate
  • Profile
  • Settings
Raspberry Pi
  • Products
  • More
Raspberry Pi
Raspberry Pi Forum LCD
  • Blog
  • Forum
  • Documents
  • Quiz
  • Events
  • Polls
  • Files
  • Members
  • Mentions
  • Sub-Groups
  • Tags
  • More
  • Cancel
  • New
Join Raspberry Pi to participate - click to join for free!
Featured Articles
Announcing Pi
Technical Specifications
Raspberry Pi FAQs
Win a Pi
Raspberry Pi Wishlist
Actions
  • Share
  • More
  • Cancel
Forum Thread Details
  • Replies 28 replies
  • Subscribers 677 subscribers
  • Views 4313 views
  • Users 0 members are here
  • raspberry_pi
Related

LCD

Workshopshed
Workshopshed over 9 years ago

I got myself a 7inch LCD cheap on Ebay thinking that it had a HDMI connector on it but it actually only has a ribbon connector which is described as a "LCD Interface 24-bit parallel".

 

7" Capacitive Touch 800*480 TFT TTL LCD Screen Display Module For HDMI | eBay

 

LCD Interface Definition

 

PIN NO. SYMBOL DESCRIPTION Type FUNCTION

 

1 VLED- Backlight negative input Backlight negative, connects to GND or PWM control

2 VLED+ Backlight Positive input Backlight Positive, 5V typical

3 GND Ground input Ground

4 VCC Power supply input Power supply, 3.3V

5 R0 Data lines input Red layer data lines

6 R1

7 R2

8 R3

9 R4

10 R5

11 R6

 

I was wondering if there was some kind of module I could get that would convert the HDMI signal back to the LCD signal. Any suggestions what to search for?

image

  • Sign in to reply
  • Cancel
Parents
  • the-dubster
    the-dubster over 9 years ago

    If it does turn out to be LVDS . . .

     

     

     

                   Righto, here is an eBay.co.uk link to a board (and screen - which I know you don't need).

     

                   Included in the listing is a bunch of compatible displays and - more helpfully maybe - they offer a match-up service to your screen.

     

                   Could be a starting point.

     

                   HDMI VGA DVI 50PIN TTL LVDS Controller Board+8inch LCD Display for Raspberry PI | eBay

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
  • rew
    rew over 9 years ago in reply to the-dubster

    The "less than 5 pounds" boards that you can buy on ebay seem to be boards for a specific monitor or laptop. Not generic HDMI to LVDS conversion boards.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
  • the-dubster
    the-dubster over 9 years ago in reply to rew

    They are, but a TV repair friend of mine has used them to 'test' LCD panels in the absence of alternatives - hence the 'sort of work-ish' comment. Whether he purchased a specific type I don't know, the gist of my comment was - buy better ones.

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
  • the-dubster
    the-dubster over 9 years ago in reply to rew

    I'm kinda crossing my fingers for the DPI option . . . . image

     

     

    P.S.  Multiple posts as 'unexpected errors' were stopping me from editing posts! image

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
Reply
  • the-dubster
    the-dubster over 9 years ago in reply to rew

    I'm kinda crossing my fingers for the DPI option . . . . image

     

     

    P.S.  Multiple posts as 'unexpected errors' were stopping me from editing posts! image

    • Cancel
    • Vote Up 0 Vote Down
    • Sign in to reply
    • Cancel
Children
No Data
element14 Community

element14 is the first online community specifically for engineers. Connect with your peers and get expert answers to your questions.

  • Members
  • Learn
  • Technologies
  • Challenges & Projects
  • Products
  • Store
  • About Us
  • Feedback & Support
  • FAQs
  • Terms of Use
  • Privacy Policy
  • Legal and Copyright Notices
  • Sitemap
  • Cookies

An Avnet Company © 2025 Premier Farnell Limited. All Rights Reserved.

Premier Farnell Ltd, registered in England and Wales (no 00876412), registered office: Farnell House, Forge Lane, Leeds LS12 2NE.

ICP 备案号 10220084.

Follow element14

  • X
  • Facebook
  • linkedin
  • YouTube