Comments on: Grafiniai LCD- pinout http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/ (originalios biokronikos, nė lašo copy-paste) Sat, 11 Feb 2012 10:36:10 +0000 http://wordpress.org/?v=1.5.2 Comment on Grafiniai LCD- pinout by: Administrator http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2344 Sat, 07 Nov 2009 14:21:05 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2344 You can find GND... :) You can find GND… :)

]]> Comment on Grafiniai LCD- pinout by: andrei http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2343 Sat, 07 Nov 2009 13:56:11 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2343 Thank you, it's all clear now. One last question: which one is pin 1? Thank you, it’s all clear now. One last question: which one is pin 1?

]]> Comment on Grafiniai LCD- pinout by: Administrator http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2337 Fri, 06 Nov 2009 17:56:35 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2337 Vee is negative suply for liquid crystal. New LCD screens have internal capacitive negative bias suply. Old one need external. I don't think it is very critical, but it must be negative. I collected this data from working unit. It is DC, but very low current. Original screens use small 2x1cm DC/DC convertors from Rohm. I am using "~" symbol to show "about", not AC. Vee is negative suply for liquid crystal. New LCD screens have internal capacitive negative bias suply. Old one need external. I don't think it is very critical, but it must be negative. I collected this data from working unit. It is DC, but very low current. Original screens use small 2×1cm DC/DC convertors from Rohm.
I am using “~" symbol to show “about", not AC.

]]> Comment on Grafiniai LCD- pinout by: andrei http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2336 Fri, 06 Nov 2009 12:09:08 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2336 Thank you very much for your answer. But what is the function of VEE? Does it need negative voltage (with respect to GND). -25V is this critical? DC or AC? And on contrast as well: -18V... why not +18? DC or AC? P.S. I really need this info because I couldn't find a datasheet anywhere and I'm trying to build a little project around this LCD. Thank you very much for your answer.
But what is the function of VEE? Does it need negative voltage (with respect to GND). -25V is this critical? DC or AC? And on contrast as well: -18V… why not +18? DC or AC?

P.S. I really need this info because I couldn't find a datasheet anywhere and I'm trying to build a little project around this LCD.

]]> Comment on Grafiniai LCD- pinout by: Administrator http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2331 Wed, 04 Nov 2009 16:40:17 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2331 No, the screen will be black. Contrast pin is draining very low current, so only small trimmer is good for voltage divider. No, the screen will be black. Contrast pin is draining very low current, so only small trimmer is good for voltage divider.

]]> Comment on Grafiniai LCD- pinout by: andrei http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2330 Wed, 04 Nov 2009 12:28:07 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2330 will this LCD work without Vee (pin 8 and pin 13) and contrast (pin 14) conected? I have 3 displays of this model and i would like to test them before building an inverter. Thank's will this LCD work without Vee (pin 8 and pin 13) and contrast (pin 14) conected? I have 3 displays of this model and i would like to test them before building an inverter.

Thank’s

]]> Comment on Grafiniai LCD- pinout by: Administrator http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2324 Mon, 02 Nov 2009 16:17:51 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2324 Try to find VERY old 15" LCD. They are made with several chips and no LVDS output, but plain digital RGB- 18 or 24 bits. And all pixel clock stuff inside. Only need to divide pixel clock by 2 or 4 (same with hsync) and you can connect your LCD. Try to find VERY old 15″ LCD. They are made with several chips and no LVDS output, but plain digital RGB- 18 or 24 bits. And all pixel clock stuff inside. Only need to divide pixel clock by 2 or 4 (same with hsync) and you can connect your LCD.

]]> Comment on Grafiniai LCD- pinout by: Giuliano http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2323 Mon, 02 Nov 2009 16:06:55 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2323 I completelly understand you but I really need to "made" a small solution... more or less 2 or 3". I completelly understand you but I really need to “made" a small solution… more or less 2 or 3″.

]]> Comment on Grafiniai LCD- pinout by: Administrator http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2322 Mon, 02 Nov 2009 15:33:09 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2322 ... better find small 15" color LCD monitor and use it without problems. You may find it with burn out lamps cheaply. … better find small 15″ color LCD monitor and use it without problems. You may find it with burn out lamps cheaply.

]]> Comment on Grafiniai LCD- pinout by: Giuliano http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2321 Mon, 02 Nov 2009 10:28:11 +0000 http://www.vabolis.lt/2008/02/22/grafiniai-lcd-pinout/#comment-2321 Great idea. I think that tft TD018THEJ6 is a colored display. I found the Motorola MC44145D Pixel Clock Generator/Sync Separator circuit. I am thinkig on it... one kind of VGA interface (external) VGA Output -> Vga Connector -> MC44145D -> TFT I understand the circuit logic, but i really need a help to create some kind of schematics to create this. This mini monitor will be used inside an old Slide Projector look like system with fresnel lens and led illuminating. This "projector" will be used in another projects. In general lines is that, one mini VGA monitor but How i can connect this? May i can use an LCD Monitor Circuit (A Samsung monitor for example). Great idea. I think that tft TD018THEJ6 is a colored display. I found the Motorola MC44145D Pixel Clock Generator/Sync Separator circuit.

I am thinkig on it… one kind of VGA interface (external)

VGA Output -> Vga Connector -> MC44145D -> TFT

I understand the circuit logic, but i really need a help to create some kind of schematics to create this.

This mini monitor will be used inside an old Slide Projector look like system with fresnel lens and led illuminating. This “projector" will be used in another projects.

In general lines is that, one mini VGA monitor but How i can connect this? May i can use an LCD Monitor Circuit (A Samsung monitor for example).

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