Description   Liquid crystal display (LCD) modules are used at the component level in place of less efficient displays such as cathode ray tubes (CRTs). These modules do not include housing and must be incorporated into a larger instrument or system. Liquid crystal displays (LCD) belong to the class of nonemissive technologies, or displays that do not generate light of their own but control the transmission or reflection of an external light source.   A liquid crystal display...
Learn More about Liquid Crystal Display (LCD) Modules


Q & A on Liquid Crystal Display (LCD) Modules

We asked our users for their input on Liquid Crystal Display (LCD) Modules. Here are the results of 114 users familiar with Liquid Crystal Display (LCD) Modules.

Who Took Our Poll? | Design Trends | Applications and Use | Features | Buying Advice

Who Took Our Poll?Top

Design TrendsTop

Q:
What new technologies are influencing LCD module design?
17 answers
Answers:
LCD fabrication, polarizers configuration, backlight illumination, small designs, for displaying high contrast and wide view angle.
~Pas Garcia-Martinez, University, Burjassot, Spain
Right now 3D viewing, wide angle viewing eligibility, daylight viewing eligibility, are the issues influencing in module design.
~Satish C, Engineer and a ham radio operator, Nasik, India
OLED technology and the need to integrate internet/mobile/Satellite transmission.
~Triptaran S, Marketing/Sales, Muscat, Oman
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Q:
From your perspective, which companies are creating the most innovative LCD modules?
16 answers
Answers:
SAMSUNG -primarily because of being the market leader and SHARP-because of being the original innovator for LCD applications
~Triptaran S, Marketing/Sales, Muscat, Oman
Densitron Displays
~John N, Design Engineer, Farmdale, OH
Sharp, CMO, Philips (lighting and electronics for LCD modules)
~Dan E, Color reproduction and imaging consultant, Zichron, Israel
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Applications and UseTop

Q:
What are some of the applications you have used an LCD module for?
35 answers
Answers:
Debug Information during MCU development, and user output. (Alpha Numeric display) User I/O in mobile lab station, and MCU uOS/2, and games. (tied to touchscreen) Alternate output for UART, OS verification and control. (Graphics LCD & touchscreen)
~David M, Student, Flint, MI
- Accurate color and spectral reproduction for color critical applications such as proofing, medical and B2B color comunication. - Wide gamut color mapping - Post production and digital cinema
~Dan E, Color reproduction and imaging consultant, Zichron, Israel
ATM, Casino games, amusement games, bowling alleys, signage
~Mike B, Director of Sales, McCook, IL
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Q:
Please share with us any “non-standard” applications that an LCD module has been used for.
8 answers
Answers:
Automotive; power meters; solar energy control systems; electronic labels.
~Flavio Viero, General Management, Carnate, Italy
- "Head up" display for mobile devices - LCD module as a scanning device
~Dan E, Color reproduction and imaging consultant, Zichron, Israel
Future project: with a magnifying mirror, a heads up display of instruments in a motorcycle windshield.
~Warren S, Design Engineer, Three Rivers, MI
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Q:
Do you know of any disastrous mistakes that occurred due to the incorrect usage of an LCD module?
3 answers
Answers:
Again with backlights...be sure that you understand the power levels and requirements for your lighting. In the absence of a logical ctrl system, you might be tempted to just "cut" power to turn it off. THIS CAN BE VERY BAD. For a high voltage system like the old EL lamps this can cause disastrous arc-ing across your lcd logic board, fri-ing everything in its path.
~David M, Student, Flint, MI
Poor installation techniques
~John N, Design Engineer, Farmdale, OH
No. In case of mistake what can happen is the display doesn't work.
~Flavio Viero, General Management, Carnate, Italy

FeaturesTop

Q:
What would your design or feature "wish list" be for this product?
16 answers
Answers:
Better operation temperature ranges, brighter backlight, more sunlight readability, improvements for touch screens.
~Cal K, Design Engineer, Fargo, ND
Low voltage requirements, high-efficiency back-light, serial interface, and low dot pitch, with superb detail on a very small screen.
~David M, Student, Flint, MI
More varieties of simple (1-4 digit/chr) large size (1"-3"+) numeric & dot matrix modules. Ideally, they'd be sideways stackable with controllers that would easily cascade link. Instrumentation & machine interface systems could really benefit.
~Warren S, Design Engineer, Three Rivers, MI
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Q:
Is there any advice you want to share with users to help them avoid common errors in selection or usage of an LCD module?
9 answers
Answers:
Verify the power requirements and hook-up...especially between the BACKLIGHT and the screen logic. Some backlights require expensive inverters to function and others have no logical control system.
~David M, Student, Flint, MI
Make sure that it will work over your temperature range requirements.
~Cal K, Design Engineer, Fargo, ND
Avoid non-descending lower case characters, if possible: they look cheesy. Think through backlighting vs ambient for actual usage.
~Warren S, Design Engineer, Three Rivers, MI
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Buying AdviceTop

Q:
Do you have any advice for people relative to buying or using an LCD module?
10 answers
Answers:
Backlights are more important than one might think. Parallel interfaces are fast, but serial is so much more efficient.
~David M, Student, Flint, MI
Check viewing angle, luminosity and contrast
~Marcel B, General Management, Rotterdam, Netherlands
Serial i/f uses much fewer i/o lines than a parallel i/f & is preferred when possible.
~Jesse C, Design Engineer, Venice, FL
Be sure your supplier is a manufacturer and it has total control of production process.
~Flavio Viero, General Management, Carnate, Italy
Advice depends on requirement and project constraints. I am a consultant to the imaging industry, and in this capacity I advise my clients according to their specific circumstances.
~Dan E, Color reproduction and imaging consultant, Zichron, Israel
Stay with standard controllers unless features required.
~Warren S, Design Engineer, Three Rivers, MI
Consider quality/price ratio
~Allan G, Freelance Computer Tech, Sta.Rosa, Phillippines
Device availability
~Mario B, Engineer, Torino, Italy
Electronic control
~Pas Garcia-Martinez, University, Burjassot, Spain
Quality
~John N, Design Engineer, Farmdale, OH


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