Source of LCD - touch screen panel mounting bezels?

Started by DTJ in sci.electronics.design7 years ago 1 reply
LCD

We're looking at using a small (

We're looking at using a small (


Is there life inside of liquid crystal displays ? (LCD wave patterns)

Started by Anonymous in sci.electronics.design2 years ago 3 replies

I just did a high-speed capture of an lcd/vga monitor and it appeared some kind of pattern was showing when the monitor was blinking different...

I just did a high-speed capture of an lcd/vga monitor and it appeared some kind of pattern was showing when the monitor was blinking different colors at rapid speed, though still vertical retraced/synced to it's frequency of 60 hz or so. On the high speed footage it appears there are these wave like almost plasma like patterns... and also ripples can be seen, slightly. What are t


Bright stripe on LCD display

Started by DaveC in sci.electronics.design8 years ago 4 replies
LCD

This is a ~ 4 year old HP Pavilion laptop with LCD display. There is a bright vertical area on the left end of the display that is...

This is a ~ 4 year old HP Pavilion laptop with LCD display. There is a bright vertical area on the left end of the display that is incongruous with the rest of the display. It is only on the left end. http://imagebin.org/265633 This image also shows the lighter central area of the display which is an artifact of just viewing it on-center (or nearly). This phenomenon can be ignored. ...


Hi-temp LCD

Started by Don Y in sci.electronics.design1 year ago 6 replies

I've only once spec'd an LCD display in a product. I recall lots of different issues, criteria (transflexive, transmissive, high...

I've only once spec'd an LCD display in a product. I recall lots of different issues, criteria (transflexive, transmissive, high temperature, etc.). But, have largely forgotten most of those issues (IIRC, transmissive/transflexive/reflexive have to do with the treatment of the back of the display) I recall response time was sensitive to excitation voltage and temperature. I don't recall ...


Partly offtopic - LCD --> Relay --> Power

Started by gm in sci.electronics.design6 years ago 5 replies

Hi to all. I've started to create schematics for PCB board that will be plugged onto arduino mega board. All pins are set on bottom double...

Hi to all. I've started to create schematics for PCB board that will be plugged onto arduino mega board. All pins are set on bottom double connector to simplify pcb design and all power( for arduino board / LCD, coin machine / relay/ keypad etc.) will come from this board. Main external power source will be 12V transformer ( cca 40W, standard ). -------------------------- When i was t...


Dropped "Full"-DVI-I vs DVI-D-support-only for GT 1030 is painfull/mistake. (Thx to convertors still interesting though)

Started by Anonymous in sci.electronics.design3 years ago 4 replies

Hello, Right now I am computing on a very nice LCD monitor which has VGA as best connection option. (I tried VGA to VGA cables and DVI to...

Hello, Right now I am computing on a very nice LCD monitor which has VGA as best connection option. (I tried VGA to VGA cables and DVI to VGA cables both work nicely and after the monitor is told to "auto-adjust" the screen becomes crystal clear). The monitor does have some issues displaying this page, it blinks: http://www.lagom.nl/lcd-test/clock_phase.php Not sure if it's a


Is zebra connecctor like this made/available?

Started by xpzzzz in sci.electronics.design10 years ago 4 replies
LCD

Zebras as used in watch lcd connections. What I want is a sheet with a grid of transverse conductors. Also germane is the possibility of...

Zebras as used in watch lcd connections. What I want is a sheet with a grid of transverse conductors. Also germane is the possibility of water leakage across the sheet.


Barrel connectors

Started by Don Y in sci.electronics.design8 years ago 111 replies
LCD

Hi, They're everywhere! And, often CRAP! Any guidelines on selection criteria? Any worries about failure modes? Do the "inverse"...

Hi, They're everywhere! And, often CRAP! Any guidelines on selection criteria? Any worries about failure modes? Do the "inverse" variety (now popular on laptops, LCD's, etc.) offer any special advantages over the traditional style? Thx, --don


need datasheet HC40201-B

Started by Ivan Vegvary in sci.electronics.design6 years ago
LCD

picked up a Hyundai HC40201-B LCD display to play with and learn. Would like to hook up to my Arduino. Have had no luck finding a data sheet...

picked up a Hyundai HC40201-B LCD display to play with and learn. Would like to hook up to my Arduino. Have had no luck finding a data sheet on the web, using Google. Any links would be greatly appreciated. Thank you!


Dead pixels or...?

Started by bitrex in sci.electronics.design6 years ago 2 replies
LCD

LCD display having issues: http://tinyurl.com/jovnnra Dead pixels, corroded/dirty ribbon cable contacts, or something else?

LCD display having issues: http://tinyurl.com/jovnnra Dead pixels, corroded/dirty ribbon cable contacts, or something else?


Decode LCD drive?

Started by N_Cook in sci.electronics.design3 years ago 8 replies

The initial step before feeding to conversion to BCD or whatever. So decoding 2 of 4 backplanes (not interested in all the digits+legends) ...

The initial step before feeding to conversion to BCD or whatever. So decoding 2 of 4 backplanes (not interested in all the digits+legends) 0.3V voltage steps and relative timings and of course the ORing function. Identity of the backplanes and segment lines is known.


LCD screen -- water spots

Started by mkr5000 in sci.electronics.design8 years ago 7 replies
LCD

Restored a TV that had set outside and it must have received some rainwater= or snow. I googled the image of what the damage looks like and...

Restored a TV that had set outside and it must have received some rainwater= or snow. I googled the image of what the damage looks like and it's like "clouds" th= at are here and there in the display background. Ran into some info that sa= id to put a small heater in front of the bad areas (within reason obviously= ) and that will help. Lo and behold after a few days it did clear up some o...


White LED spectrum?

Started by Paul Conners in sci.electronics.design10 years ago 11 replies

Would like to find white SMD LEDs suitable for use as backlight for LCD monitors where the CCFL lamps have burned out. So need is for...

Would like to find white SMD LEDs suitable for use as backlight for LCD monitors where the CCFL lamps have burned out. So need is for consistency between units and... well, "whiteness". ;-) Or other parameters I should be considering? Any recommendations (ie, LEDs you think would be good for this)? (And yes, I can Google and have.) Thanks, Dave


LCD Text Displays

Started by Tim Wescott in sci.electronics.design8 years ago 6 replies
LCD

It's been a long time (1992?) since I've designed one of these things into a product, and at that time the thing was just handed to me with a...

It's been a long time (1992?) since I've designed one of these things into a product, and at that time the thing was just handed to me with a "here, put this in": http://www.lumex.com/en/products/detail/lcds2/high_low_temp/ character_modules/16_x_2/ Does anyone have any recent mileage with these? Are there any manufacturers that are known to be particularly good or particularly bad...


EL backlight is cool

Started by bitrex in sci.electronics.design6 years ago
LCD

The "new" LCD display came out pretty nice if I do say so myself - replaced filter cap in the inverter, changed the contrast resistor on the...

The "new" LCD display came out pretty nice if I do say so myself - replaced filter cap in the inverter, changed the contrast resistor on the board (stock one made the new display too dim), removed the reflective backing on the replacement display. Looks very 80s: http://imgur.com/EsjRgv1


Source for graphic display

Started by Mike Cook in sci.electronics.design7 years ago 17 replies
LCD

Looking for LCD graphic display approximately 6 inches by 1.5 inches (150 mm by 30 mm). High-resolution not required; I'm apparently limited by...

Looking for LCD graphic display approximately 6 inches by 1.5 inches (150 mm by 30 mm). High-resolution not required; I'm apparently limited by my size requirements. I don't see anything more than square-ish displays on e-bay. Suggestions? Thanks.


PING: Phil Hobbs

Started by JW in sci.electronics.design9 years ago 1 reply
LCD

Hey Phil, I remember you saying that your TDS744A CRT was getting quite dim. You might be interested in this...

Hey Phil, I remember you saying that your TDS744A CRT was getting quite dim. You might be interested in this thread. http://tech.groups.yahoo.com/group/TekScopes/message/86205 For $79 and a bit of schlocking, you can replace your CRT with an LCD display. Just bought one myself to do some further testing.


Actual LED TVs? do they exist?

Started by Commander Kinsey in sci.electronics.design1 year ago 40 replies

Are any TVs just LED? Or is LED just a backlight to an LCD panel? I thought they'd invented TVs where every dot was a tricolour LED, but I...

Are any TVs just LED? Or is LED just a backlight to an LCD panel? I thought they'd invented TVs where every dot was a tricolour LED, but I can't find any such thing.


Charger recommendations

Started by Andy in sci.electronics.design4 years ago 17 replies

I am looking at the Nitecore D4 Digicharger/Four Channel Universal Smart Battery Charger/LCD Display and GYRFALCON All-44 4 Channel Digital...

I am looking at the Nitecore D4 Digicharger/Four Channel Universal Smart Battery Charger/LCD Display and GYRFALCON All-44 4 Channel Digital Battery Charger. What do you recommend ? I read where 26650 have a higher capacity than 18650s. Andy


markings on XTALs what do they mean?

Started by Johann Klammer in sci.electronics.design3 months ago 24 replies

I have a defective LCD monitor here. It has two xtals inside. HC49 thru hole. they have something printed on the can. Number one: TXC G...

I have a defective LCD monitor here. It has two xtals inside. HC49 thru hole. they have something printed on the can. Number one: TXC G 14.3EF19 Number two: TXC G 20ARG95 It does not match any part numbers on the TXC website. I would like to know f, tolerance and load cap. Thank you.