VA LCD SCREEN
VA LCD SCREEN Hunan Chengxin Optoelectronics Co., Ltd VA LCD SCREEN 1) [Display
Segment LCD VA
LCD 51093 STN
Products Description VA (Vertical Alignment) LCD is a type of display panel
0802A Lcd Screen
LCD 0802A
2.4 Inch Tft Lcd Display
Product Introduction 2.4 inch tft display Most 2.4-inch TFT LCD screens are
3.5 Inch Touch Screen Arduino
Product Introduction 3.5 tft lcd screen The 3.5TFT lcd screen has a diagonal
1.3 Inch Tft Display
Product Introduction 1.3 tft display 1.3 inch TFT display is a small size color
1.77 Tft Lcd
Product Introduction 1.77 tft lcd is a small color liquid crystal display with
4.3 tft lcd display
4.3 TFT Display refers to a TFT color LCD with a diagonal length of about 109

LED Backlight

Your Leading LED Backlight 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 backlight. It offers a wide range of products, including LGP panel LED backlight, multicolor LED backlight and LED signs LED backlight, etc.

Why Choose Us

Production Capacity

The company has 1 LCD segment code screen production line, 4 backlight production lines, 5 FOG binding lines and 10 module assembly production lines. Perfect automation equipment technology, stable shipment, daily production of 30000 +/piece.

Quality Assurance

The factory has passed SIO9001 quality system certification and ROHS certification, and has been committed to the research and development and production of better and more excellent LCD screens.

Professional Team

It has more than 500 front-line employees, 28 technicians and 9 sales engineers. Ensure smooth communication with customers, high degree of cooperation and accurate delivery time.

Fast Service

Produced by source manufacturers, first-line brands, second-line prices, creating value for customers. 7 × 24 hours fast service.

Types of LED Backlight

Multicolor LED Backlight
Multicolor LED backlight use dual-wavelength LED light source technology, and achieve wider color gamut coverage through the combination of blue and red or blue and green LED chips.

LGP Panel LED Backlight
LGP panel LED backlight is a high-efficiency, energy-saving and environmentally friendly lighting product, which is widely used in modern electronic products.

LED Signs LED Backlight
The LED signs LED backlight utilize LED technology to provide high brightness, low power consumption, and long life backlight sources, which are widely used in billboards, signage, store displays and various other display systems.

Product Parameter (Specification)

Item	Symbol	Condition	Min.	Typ.	Max.	Unit
Forward Voltage	Vf	W: If=mA±5mA	2.8	3	3.2	V
Reverse Current	Ir	Vr=5.0V			20	μA
Power Dissipation	Pd	W: If=45mA±5mA		60		mW
Colour Coordinates	X	W: If=45mA±5mA	515		525	nm
	Y
Luminance(Center Area)	Lv	W:If=45mA±5mA		TBD		cd/m²
Luminous Uniformity		W:If=45mA±5mA	75			%
Operating Temperature Range	Topr	Normal use	-20		+70	℃
Storage Temperature Range	Tstg	Normal use	-30		+80	℃

Benefits of LED Backlight

Long Lifespan and Environmentally Friendly
LED backlight generally lasts longer than its electroluminescent counterpart, with a lifespan of about 50,000 hours or more depending on the type and how it’s used.

Excellent Brightness Uniformity
LED backlight technology provides excellent brightness uniformity to enhance and improve the user experience. Distributes light evenly across the screen for high-definition visibility.

Flexible Adjustments of the Luminous Frequency
In contrast to the traditional CCFL lamps, LED backlight technology is far more advanced in the sense that it completely eradicates the light flickering across the screen.

Utilizes Low Voltage Power Supply
Since most LED backlight technology uses a very low voltage power supply of no more than 5-24 volts, this helps extend its overall lifespan, prevents the unit from overheating, and allows for longer display usage.

Easy to Control and Display Colour Characteristics
Another advantage of LED backlight technology is that it makes it easier for the user to control and display specific colour characteristics using a variety of hues including blue, red, and green.

Application of LED Backlight

Consumer Electronics

LED backlights are a cornerstone in consumer electronics, enhancing the visual experience in devices like smartphones, tablets, and televisions.

Medical industry

In the medical field, high-resolution LED screens with advanced backlighting are vital for accurate diagnostics and patient monitoring.

Automotive industry

The automotive industry, LED backlights are used in dashboards and infotainment systems, enhancing the driving experience with clear and vibrant displays.

Industrial Displays

In industrial settings, LED backlights are essential for displays used in harsh environments. These backlights provide the necessary brightness and durability to withstand extreme conditions.

Differences Between LED and WLED Backlight

LED and WLED backlighting both leverage LED bulbs to illuminate the pixels of a display device. LED backlighting simply refers to any lighting system that consists of LED bulbs. Most LCDs use LED backlighting. LED has become the leading backlighting technology for LCDs.

WLED is a type of LED backlighting that lives up to its namesake by leveraging white LEDs. LCDs with WLED backlighting have columns and rows of white LED bulbs, which are placed behind a diffuser.

You may discover that WLED-backlit LCDs feature local dimming zones. They can control the brightness of the zone independently of each other. In other words, WLED-backlit LCDs can make some of the LED zones darker than the other zones.

LED Backlight Production Process

Cleaning: Ultrasonic cleaning of PCB or LED wire rack and drying.

Mounting: After the bottom electrode of the LED chip (large wafer) is prepared with silver glue, the expanded chip (large wafer) is placed on the spinel table.

Pressure welding: Connect the electrode to the LED core with aluminum wire or gold wire welding machine to be the lead for current injection.

Packaging: Epoxy is used to protect LED core and welding line through glue dispensing.

Welding: If the backlight source is smd-led or other encapsulated LED, the LED shall be welded to the PCB board before assembly process.

Packaging: Packaging and warehousing of finished products as required.

Film cutting

All kinds of diffusion films and reflective films required by backlight source are cut by punch die.

Assembly

According to the requirements of the drawings, all kinds of materials of the backlight shall be manually installed in the correct position.

Test

Check whether the photoelectric parameters of the backlight source and the uniformity of light output are good.

Other Services

Delivery Method

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

Payment Terms

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

Fast Delivery

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

Warranty

With 120 days warranty and returns and exchanges supported.

MOQ

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

FAQ

Q: Why is my LED backlight not working?

A: An LED backlight fails when the LEDs have damaged the screen's pixels. The affected LEDs will still conduct electricity, but they won't produce light and will result in dark spots on the screen. In some cases, the backlight may be a result of a power supply failure, the driver circuit or the LED itself.

Q: How does a LED backlight work?

A: A backlight, which is partially composed of two layers of polarizing material with a liquid crystal solution between them, is used to illuminate the image on an LED TV. When an electric current passes through the liquid solution, it causes the crystals to align so that light is transmitted.

Q: Can LED backlight be replaced?

A: Replace the Backlight: If the backlight is made up of LED strips, carefully disconnect the connectors and remove the strips. Replace them with new LED strips. If the backlight uses fluorescent tubes, you'll need to replace the tubes.

Q: How do I know if my LED backlight is bad?

A: Flickering screen which may stabilize after some time or continue persistently. Uneven brightness across the screen, with some areas darker than others. Additionally, bright spots may appear when part of the lens moves out of the backlight LED strip.

Q: What is the MTBF of a LED backlight?

A: MTBF (Mean time between failures) is the estimated number of hours before the backlight burns out or goes dark. Some estimates of this are as high as 1,000,000 hours, but take into account several factors that occur in the real world that will shorten this estimate.

Q: How do I know if my LED backlight is broken?

A: The easiest way to see if the LED backlights are working is to look through the TV's back cover and plug the TV in and turn on the TV and see if there is any light on the back. This can be difficult at times and it may help to turn off the lights to see if any light comes on.

Q: Why do LED backlights turn blue?

A: An LED backlight is bright, slim, and efficient, but LED lighting often has a cool color temperature, which casts a slight blue tint. This quality is most noticeable when viewing a white image and much less noticeable when viewing other colors.

Q: What is local dimming in LED backlights?

A: Local dimming is a feature in full-array LED backlights where the brightness of individual zones can be adjusted dynamically. This improves contrast by making dark areas of the screen appear darker and bright areas brighter, enhancing overall image quality.

Q: What is edge-lit LED backlight?

A: Edge-lit LED backlight places LEDs along the edges of the screen, with a light guide panel dispersing the light evenly. This configuration enables thinner displays but can result in uneven brightness or less precise local dimming compared to full-array systems.

Q: What is full-array LED backlight?

A: With a Full Array LED Backlight there are LEDs across the whole screen. This means that the power and intensity of the LEDs can be adjusted much more precisely according to the scene. So light goes where it's needed, and dark parts stay dark.

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

LGP Panel LED Backlight, , LED Signs LED Backlight