Chenxin Optoelectronics Co.,Ltd

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LCD Screen

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Types of LCD Screen
 
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Reflective LCD Screen
Reflective LCD screen is a common digital display.Positive LCD display is favored by users with its clear display effect, low power consumption, high reliability and other characteristics.

02/

Negtive LCD
Negative LCD display is a special type of LCD display technology. In most cases, he needs to use the backlight to use it to display it.

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TN LCD Panel
TN LCD (Twisted Nematic Liquid Crystal Display) is a common LCD technology, viewing angle range: 70~90°, driving voltage: 3~5V.In the negative display mode, it is usually made of dark green.

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HTN LCD Display
The HTN LCD display are based on twisted nematic (TN) liquid crystal technology, where liquid crystal molecules twist under the action of an electric field, changing the direction of light propagation to achieve display effects.

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STN（FSTN） LCD Display
The STN LCD display is a common liquid crystal display technology, which is widely used in various electronic devices.

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VA LCD Display
VA LCD (Vertical Alignment Liquid Crystal Display) is a LCD display technology with unique characteristics and advantages.

 

 

Your Leading LCD Screen Manufacturer

 

Cheng Xin Optoelectronics LTD. is a manufacturer that provides a wide range of display products for various industries. The company was established in 2014 and specializes in the development and manufacture of LCD screen. It offers a wide range of products, including reflective LCD screen, two-digit seven segment LED, three-digit 7 segment LED, VA LCD display。

 
 
 
 
Application of LCD Screen

Clocks: Used in displays in digital wall clocks.

Cameras: Used in digital cameras for displaying images.

Television: Has a major application in LCD TFT screens.

Computer monitors: Most of the modern world computer monitors are made of LCDs.

Instrument panels: All the lab instuments uses LCD screens for display.

Aircraft cockpit displays: Cockpit display panels of pilots are usually LCDs.

Video players

Such screens are very popular in video game parlours and consoles.

Watches

All the digital wrist watches uses LCD screen for displaying time.

Calculators

Calculator display screens are LCD screens.

 

The Basic Components of an LCD Screen
 

Liquid Crystal Layer

This layer is made up of numerous tiny cells filled with liquid crystals.

Backlight

This is the light source for the screen.

Color Filters

These filters add color to the images created by the liquid crystal layer.

 

Manufacturing Process of LCD Screens
 

Substrate Preparation: The first step in manufacturing an LCD screen involves preparing the glass substrates.

Thin Film Transistors (TFT) Fabrication: The array substrate is coated with a layer of transparent conductive material, usually indium tin oxide (ITO).

Color Filter Fabrication: The color filter substrate is coated with a black matrix to define the boundaries of each pixel. Then, red, green, and blue color filters are applied to their respective pixel areas.

Liquid Crystal Alignment: Both the array substrate and the color filter substrate undergo a liquid crystal alignment process.

Liquid Crystal Injection and Sealing: The array substrate and color filter substrate are aligned facing each other, with a narrow gap between them.

Polarizer Attachment: Polarizers are applied to the outer surfaces of the LCD screen to control the polarization of light passing through the liquid crystal layer.

Testing and Inspection: After the LCD screen assembly, a series of rigorous tests and inspections are performed to ensure the quality and reliability of the screens.

VA Lcd Display

 

Features of LCD screen

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LCD screens broadly refer to all LCD screens, and can be manufactured in various configurations, including TN, STN, FSTN, TFT, and IPS. We are referring to 7-segment LCDs.

Environmentally robust: Some LCDs can operate stably in temperatures ranging from -30°C to 80°C. Based on operating temperature, our industry categorizes them into industrial-grade and standard-grade, distinguishing between those suitable for use in harsh environments and those suitable for everyday use.

Flexible Usage: Reflective LCD screens typically don't use LED backlights. When using LED backlights, they can be configured as transmissive, reflective, or semi-transmissive.

Safe and Environmentally Friendly: Compared to CRTs, LCDs don't flicker due to insufficient refresh rates, making them more eye-friendly. 7-segment LCDs are self-luminous, making them energy-efficient and environmentally friendly.

Adjustable Viewing Angle: TN, HTN, STN, FSTN, VA, and IPS technologies determine different viewing angles.

 

Other Services

Delivery Method

Express (DHL / FEDEX / UPS) , Air , Sea , etc. Depending on customers' cost or time requirements, we ship by the best one.

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Payment Terms

Our usually payment term is T/T. Others can be negotiated.

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Fast Delivery

The product will be shipped within 48 hours after order confirmation.

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Warranty

With 120 days warranty and returns and exchanges supported.

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MOQ

Our standard products MOQ is 500 pcs, customized products have MOQ requirement, please contact our sales team for detailed information.

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FAQ

 

Q: Why is backlighting necessary in LCD screens?

A: Backlighting is necessary in LCD screens because liquid crystals do not emit light on their own. The backlight illuminates the liquid crystals from behind, making the images visible to the viewer. Without the backlight, the screen would be very dim and hard to see.

Q: What is the role of polarizing filters in an LCD screen?

A: Polarizing filters in an LCD screen are crucial for controlling the light that passes through the liquid crystals. They are oriented at 90 degrees to each other, allowing only certain orientations of light to pass through. When the liquid crystals twist, they change the light’s orientation to match the second filter, allowing it to pass through.

Q: What can damage an LCD screen?

A: LCD screens can be damaged by a variety of factors, including physical impacts, scratches, pressure, heat, moisture, dust, or faulty components.

Q: What is the lifespan of an LCD screen?

A: The lifespan of an LCD screen before it starts to burn can vary greatly depending on several factors such as the quality of the screen, how often it is used, and the conditions it is used under. However, under normal usage, an LCD screen can last anywhere from 30,000 to 60,000 hours before burn-in starts to occur.

Q: What's the difference between a cracked screen and a broken LCD screen?

A: In the event a damage is done to the screen glass, if the impact is not too great, only the glass will be broken or chipped off. The LCD, which is beneath the glass screen, will be protected from further damage. The LCD will still function and no unusual distortions is seen on it.

Q: What is the liquid in an LCD screen?

A: The heart of an LCD screen is a special liquid that is called a twisted nematic liquid crystal. This liquid has the capability of rotating the polarization of linearly polarized light.

Q: How does an LCD screen work?

A: LCD screens function by manipulating liquid crystals to control light. These crystals align in response to an electric current, allowing or blocking light from passing through. A backlight provides illumination, and color filters create the images we see by combining red, green, and blue subpixels in varying intensities.

Q: How do LCD screens compare to OLED screens?

A: LCD screens are generally less expensive and more energy-efficient than OLEDs. However, OLED screens offer better contrast, deeper blacks, and faster response times. LCDs also tend to have longer lifespans since OLEDs can suffer from burn-in issues.

Q: What is backlight bleeding in LCD screens?

A: Backlight bleeding happens when the backlight of an LCD screen leaks around the edges or corners of the display. This issue is most noticeable in dark environments or when displaying black images.

Q: What is the refresh rate of an LCD screen?

A: The refresh rate indicates how many times the screen updates its image per second, measured in Hertz (Hz). Common refresh rates are 60Hz, 120Hz, and 144Hz.

As one of the most professional LCD screen manufacturers and suppliers in China, we're featured by quality products and low price. Please feel free to wholesale cheap LCD screen made in China here from our factory. Contact us for customized service.

128x32 Monochrome LCD, , LED Signs LED Backlight