Page 8 of 20 FirstFirst 123456789101112131415161718 ... LastLast
Results 71 to 80 of 195

Thread: High Bright LCD

  1. 08-15-2003, 12:00 AM #71
    ddogg_777
    ddogg_777 is offline
    Maximum Bitrate ddogg_777's Avatar
    Join Date
    Apr 2003
    Location
    HOT Arizona
    Posts
    834
    Okay, I have an update for all those who have been following my brightness control idea. My dicon controller has a voltage control for backlight brightness, 0V-5V, but the Linfinity inverter that we all have only needs 0V-2.5V for the full dimming range. I did put in a 470Kohm resistor and it dropped the max 5V down to 3.8V. This should be adequate because the inverter datasheet says it can handle a 6V max. But, if you want a finer range to deal with when adjusting the backlight brightness, try a higher resisor to bring it closer to 2.5V! I tested the voltage range and it went from 0V to 3.7V. The strange thing is...I don't notice any change in the backlight display as I varied the value! Any suggestions or does anyone have a different experience?

    SinnerG, wasn't it you that said you were getting some flickering? Did you solve that? I have the v-sync from the inverter hooked up with my lcd panel v-sync, it works great! No flicker. I just soldered the lead from the inverter to my hirose cable.
  2. 08-15-2003, 04:22 AM #72
    SinnerG
    SinnerG is offline
    Constant Bitrate SinnerG's Avatar
    Join Date
    May 2003
    Location
    Long Beach
    Posts
    213
    Send a message via MSN to SinnerG
    I noticed the same thing on the LCD1024E. There was Brightness control on the OSD, but it didn't do anything. I was just looking at the datasheet for the LCD1280EI. Make sure on JP2 (page 11 of datasheet), that the Dimming Control is set to internal PWM.
  3. 08-15-2003, 11:56 AM #73
    ddogg_777
    ddogg_777 is offline
    Maximum Bitrate ddogg_777's Avatar
    Join Date
    Apr 2003
    Location
    HOT Arizona
    Posts
    834
    Checked, but I decided it can't be the controller board, it has to be the inverter. This is because the brightness voltage IS varying like it should from 0V to 3.7V (I checked with my voltmeter) when I use the osd, but nothing happens on the inverter side. Oh well....
  4. 08-15-2003, 04:53 PM #74
    SinnerG
    SinnerG is offline
    Constant Bitrate SinnerG's Avatar
    Join Date
    May 2003
    Location
    Long Beach
    Posts
    213
    Send a message via MSN to SinnerG
    Have you tried the inverter that came with the Dicon kit? Does it vary brightness with the OSD? If the problem is with the MicroSemi invereter, I pay them a visit. They are really close to me.
  5. 08-15-2003, 06:19 PM #75
    ddogg_777
    ddogg_777 is offline
    Maximum Bitrate ddogg_777's Avatar
    Join Date
    Apr 2003
    Location
    HOT Arizona
    Posts
    834
    I'll will give it a shot! Hey, Dicon and Microsemi are close to you? DANG! that's cool. SinnerG, do you need a 8-pin hirose for your microsemi inverter? PM me...
  6. 08-15-2003, 08:23 PM #76
    SinnerG
    SinnerG is offline
    Constant Bitrate SinnerG's Avatar
    Join Date
    May 2003
    Location
    Long Beach
    Posts
    213
    Send a message via MSN to SinnerG
    I was just checking www.microsemi.com and they don't seem to have their page up. I wonder if they still exist. I did call them the same week I bought the LCD's, but haven't since. I wish I had their address handy. I'll do some more searching...........
  7. 08-15-2003, 08:46 PM #77
    SinnerG
    SinnerG is offline
    Constant Bitrate SinnerG's Avatar
    Join Date
    May 2003
    Location
    Long Beach
    Posts
    213
    Send a message via MSN to SinnerG
    I found this.
  8. 08-15-2003, 08:59 PM #78
    ddogg_777
    ddogg_777 is offline
    Maximum Bitrate ddogg_777's Avatar
    Join Date
    Apr 2003
    Location
    HOT Arizona
    Posts
    834
    I was just searching their website yesterday so it must be down for the moment.
  9. 08-16-2003, 09:55 AM #79
    Sh0cker
    Sh0cker is offline
    Variable Bitrate Sh0cker's Avatar
    Join Date
    Aug 2003
    Location
    LI, NY
    Posts
    406
    Send a message via AIM to Sh0cker
    Hey, i red the entire topic ... everything sounds interesting, but how about the price - including every part needed to use lcd?
    SinnerG, ddogg_777 since your have those LCD up and running can you tell me the final price you spend on the lcd.
    I'm not sure if i should buy ready to uselcd for $325 OR spend some time and do what you did.

    I think would be very useful for me and the rest of the readers if you list the parts what you use with your LCD (part, place/website from you bought, price).

    Thanks in advance.
  10. 08-16-2003, 12:27 PM #80
    ddogg_777
    ddogg_777 is offline
    Maximum Bitrate ddogg_777's Avatar
    Join Date
    Apr 2003
    Location
    HOT Arizona
    Posts
    834
    I spent $20 for the lcd and inverter, $130 for the lcd controller and all cables. Now all I need to do is make a nice housing.
« Previous Thread | Next Thread »

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  

Forum Rules