LED Backlit LCD

Rina Technology Co., Ltd. is one of the leading manufacturers and suppliers of led backlit lcd in China. Welcome to wholesale durable products in stock here and get quotation from our factory. All customized products are with high quality and low price.

 

Product Discription:

 Product Name:LED backlit LCD 

 

The key structures of edge-entry LED backlight include:

LED lamp beads: installed on the edge of the LCD screen (usually on the top and bottom sides or the left and right sides), the number is adjusted according to the screen size, small-sized devices (such as mobile phones) may only need a few, and large-sized TVs may need dozens.
Light guide plate: located inside the LED lamp beads, it is a transparent plate (mostly acrylic or PMMA material) with a special surface treatment (such as engraved microstructures or sprayed dots), responsible for guiding edge light to the entire screen.
Optical film: including diffusion film, brightness enhancement film (BEF), etc., covering the top of the light guide plate, used to even out light, improve brightness and viewing angle.

Light transmission process
Edge light:
LED lamp beads emit light (mostly blue or white light) from the edge of the screen, and the light enters the light guide plate in a direct or refracted manner.
Light guide plate refraction and diffusion:
The bottom or side of the light guide plate is engraved with dense dots or micro-prism structures. When the light enters the light guide plate, it will be reflected and refracted when encountering these structures, and gradually "exported" from the upper surface of the light guide plate to the center of the screen.
The density of dots gradually increases from the edge to the center: the light at the edge is strong, and through more dots reflection, the light intensity in the central area tends to be consistent with the edge, achieving uniformity.
Optical film optimization:
Diffusion film: further scatters the light, eliminates the uneven brightness caused by the dots of the light guide plate, and makes the light softer.
Brightness enhancement film: The scattered light is re-converged through the prism structure and vertically guided to the LCD panel, reducing side leakage and improving the front brightness.
Final imaging:
The uniform backlight passes through the LCD panel (including color filters, liquid crystal molecules, etc.), and the transmittance of different areas is adjusted according to the image signal, finally forming a visible image.

Technical features and principle advantages
Core logic of thinness:
Light is introduced from the edge, and there is no need to cover the back of the screen with LED lamp beads. The thickness of the light guide plate is usually only 0.5-2mm. With the ultra-thin optical film, the thickness of the whole machine can be controlled within 10mm (such as ultra-thin TVs and mobile phone screens).
Balance between power consumption and cost:
Compared with direct backlight, the number of LEDs used in the side-entry type is small (only the edge is lit), the driving circuit is simple, the power consumption is lower, and the cost is more advantageous.
Uniformity compromise:
The dot design of the light guide plate directly affects the brightness uniformity - the light transmission distance from the edge to the center of a large-size screen is long, and it is easy to have the problem of bright edges and dark centers, which needs to be optimized through more precise dot layout (such as asymmetric dots, dynamic dimming algorithms).

LED backlight structure

OUR SERVIOUS

Super slim white led backlight panel 
Any color like red, green, white are available 
Any size and shape are available 

Certificate authority

ABOUT US

We have more than 10 years experience in the lighting industry, each year we offer different range of new products to satisfy our customers that meets the market needs. All of the products have been approved by CE and RoHS. Our products are acheiving impressive and rapidly growing sales in many countries across Europe, the Middle East, the Asia-Pacific Region, South America, Africa and the Oceania. 

Our mission is to deliver environmently friendly products to our customers in great quality and competitive price. We hope to be qualified provider of LED lighting for professional lighting designers and our exiting and potential customers. 

 Delivery

1. Packaging for slim backlight panel

Internal: Poly Bag
External: Carton 
Or can depend on your demand

Shipping

FAQ

1.Do you support for customized products solutions or engineering drawing ?

Yes,we can always provide good solutions for custom different size COB chip, led backlights,led light guide panels,advertising led light box and led liner lights. 

 

2.Do your products past any certificates ? 
All our products past ROHS certificates, some products past CE,REACH,UL,DLC. We can also do the test as per customer's requires. 

 

3.How is the delivery time after the order confirmed ?

Normally 20 to 35 working days as per different products and quantity.

 

4.Can you provide waterproof outdoor led guide panels ?

Yeah, we can do well silicon glue shading led guide panels with IP65. 

5.Can you arrange shipping to my address ?
Yeah,we can provided CFR or CIF services and delivery the goods to your noted address or port. 

6.Can you handle other suppliers goods and delivery together to us ?
Yeah, we can receive your other Chinese suppliers goods and delivery together as per your benefit free of charge.
 

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