Custom LED Backlight Manufacturer for LCD Display

- The Ultimate Solutions

DisplayMan is your trusted partner for cutting-edge LED backlight solutions. Explore the advantages of LED backlight technology, our quality assurance, and customization options for vibrant displays. Choose DisplayMan for reliability and innovation in LED backlighting.

Custom LED Backlight Products

Our commitment to innovation drives us to develop and refine more than 100 new prototypes each and every month. Among this impressive array of prototypes, we meticulously handpick a small, exclusive selection of feature products to put on display, each representing the pinnacle of our dedication to excellence.

ITEM	DIMENSION	UNIT
Backlight Type	Edge
Size	Customized, Through-hole
Color	Blue
Application	Illumination
Connection	Wire

ITEM	DIMENSION	UNIT
Backlight Type	Bottom
Size	Customized
Color	Red
Application	Illumination
Connection	Wire+Connector

ITEM	DIMENSION	UNIT
Backlight Type	Edge
Size	Customized
Color	White
Application	Light Source for Monochrome LCD Display
Connection	Metal PIN

ITEM	DIMENSION	UNIT
Backlight Type	Edge
Size	Customized
Color	Blue
Application	Light Source for Monochrome LCD Display
Connection	Wire

ITEM	DIMENSION	UNIT
Backlight Type	Edge
Size	Customized, Through-hole
Color	Red
Application	Light Source for Monochrome LCD Display
Connection	Hard PIN

ITEM	DIMENSION	UNIT
Backlight Type	Edge
Size	Customized
Color	Green
Application	Illumination
Connection	Metal PIN

ITEM	DIMENSION
Backlight Type	Edge
Size	Customized, Through-hole
Color	Blue
Application	Illumination
Connection	Wire

ITEM	DIMENSION
Backlight Type	Edge
Size	Customized
Color	Green
Application	Light Source for Monochrome LCD Display
Connection	Wire

ITEM	DIMENSION	UNIT
Backlight Type	Edge
Size	Customized
Color	White
Application	Light Source for Monochrome LCD Display
Connection	Wire

What is LED Backlight?

LED backlight, short for Light Emitting Diode backlight, is a modern and energy-efficient lighting technology used primarily in LCD (Liquid Crystal Display) screens and displays. Unlike traditional CCFL (Cold Cathode Fluorescent Lamp) backlights, LED backlights employ an array of Light Emitting Diodes to provide the necessary illumination for the screen.

Tutorial: Dr Pan Teaches How LED Backlight Works And Why It Is So Popular

Tutorial: Dr Pan Teaches Edge LED Backlight

Tutorial: Dr Pan Teaches Bottom LED Backlight

Crucial Components of LED Backlight Technology

LED backlight technology is composed of several key components, each with a specific role in creating a bright, efficient, and uniform lighting source. These components work in harmony to provide the illumination necessary for modern displays. Let’s explore these essential elements in more detail.

Brightness Enhancing Films (BEF)

Brightness Enhancing Films (BEF) play a pivotal role in enhancing the display’s luminance while saving on energy consumption. They are available in different versions, including Prismatic, Microlens, and Lenticular, each offering unique benefits. These films effectively increase display brightness, making content more vivid and sharp, all while conserving energy. This not only leads to lower power consumption but also extends battery life, a valuable feature in our mobile-driven world.

Diffusion Films and Reflective Films

In the quest for uniform and brilliant backlighting, diffusion films and reflective films are indispensable. They serve a dual purpose: increasing brightness while ensuring even illumination across the entire display. These films are key in controlling viewing angles, resulting in displays that are clear and visible from various perspectives. The combination of diffusion and reflective films contributes to a visually appealing and consistent lighting solution.

Light Guide Plate

Injection Molding Light Guide Plate: This method offers a significant advantage by ensuring even light distribution and brightness across the display. However, it comes with a relatively higher tooling fee, which is typically around $1000. The good news is that this fee can be refunded once your order quantity reaches 50,000 pieces, making it a highly recommended choice for large-scale projects.
Laser-Cut Light Guide Plate: For those looking for flexibility and a range of standard thickness options, the laser-cut light guide plate is the way to go. It’s available in various thicknesses, ranging from 1.0mm to 10.0mm, and doesn’t require a tooling fee.

PCB or FPC (Flexible Printed Circuit)

PCB (Printed Circuit Board): PCB is the most commonly used connection type for LED backlighting, primarily due to its simplicity and cost-effectiveness. It streamlines the production process, saving both time and labor. Each LED backlight prototype requires a unique PCB model, allowing for various combinations.
FPC (Flexible Printed Circuit): FPC serves as the ideal choice for super-thin LED backlighting solutions. However, it’s worth noting that FPC comes with a higher tooling fee. As a result, it’s recommended for situations where thinness is a priority and a more traditional PCB is not suitable.

Connection Type

PCB with Hard PIN: This connection type is the most commonly used and cost-effective option.
PCB without PIN: While less common, this is a suitable choice for situations where thinness is a priority.
Wire Connection: Offering flexibility, this method involves manually soldering wires on the control board.
Wire with Connector: This option provides flexibility and convenience but comes at a slightly higher cost.
PCB with Metal PIN: Rarely used and not recommended due to its limited practicality.

LED Lamps

DIP LED: This category includes LED lamps with various dimensions, such as 2mm, 3mm, 4mm, 5mm, 8mm, and 10mm, with a power consumption of 0.06W. They are cost-effective and capable of illuminating over longer distances with minimal power consumption, making them suitable for applications like price-sensitive electricity meters.
SMD LED: These LEDs are categorized based on their power consumption. Small power consumption (0.06W) SMD LEDs include variants like 0402, 0603, 0805, 1206, and 3528, which are commonly used. Medium power consumption (0.1W to 0.2W) SMD LEDs, including 3014, 4014, 5050, and 2835, are employed for illumination. High power consumption (0.5W to 1.0W) SMD LEDs, including 5630, 3030, 5730, 7020, 3535, and 7030, are typically not used in our applications.

A Few Steps of LED Backlight Production Process

The art of crafting a state-of-the-art LED backlight involves a meticulously choreographed production process, consisting of well over 20 intricate steps. These steps are all essential in creating a product that not only meets but exceeds the highest industry standards. In the following sections, we will unveil a handful of these critical production steps, providing an insight into the complexity, precision, and dedication that underpin the creation of these cutting-edge lighting solutions.

Apply Solder Paste to PCB

Diffusion Film and Reflection Film Wrapping Machine

Injection Molding Light Guide Plate

Light Blocking Film Wrapping Machine

PCB Passing Through Hot Oven

Quality Test for PCB

SMD LED Soldering Machine

Soldering Wires on PCB

Quality Test on LED backlight

Custom LED Backlights for LCD Displays, Monochrome LCD Modules and OEM Display Products

DisplayMan supplies custom LED Backlights for LCD displays, monochrome LCD modules, Segment LCD, Character LCD, Graphic LCD, Dot Matrix LCD and OEM display products.

LED Backlights provide a controlled light source behind or beside LCD glass, helping the display remain readable in indoor, low-light or controlled-lighting environments.

Customization can include backlight size, shape, thickness, color, brightness, uniformity, optical films, PCB or FPC, wire, connector, PIN and mechanical matching with the LCD module.

An LED Backlight Project Can Include

Edge LED or Bottom LED structure
White, blue, green, red or yellow-green LEDs
Custom size, outline and through-hole design
Light Guide Plate and dot-pattern review
Diffusion, reflective and brightness-enhancement films
PCB or FPC LED structure
Wire, connector, metal PIN or hard PIN
Brightness, uniformity and mechanical matching

Core Product Positioning

LED Backlight is the light-source component of an LCD system. It is not an LED Display and it is not an LCD Controller Board.

LED Backlight Product Directions

The correct direction depends on LCD type, brightness, color, size, thickness, optical structure, connection and product assembly.

Product Direction	Best For	Selection Logic
Edge LED Backlights	Thin LCD modules and side-light structures	Selected when LED light enters from one or more edges of the light guide plate
Bottom LED Backlights	Direct illumination and selected simple backlight structures	Selected when LEDs are placed behind the display area
LED Backlight for Segment LCD	Custom LCD glass, meters, appliances and fixed icons	Selected when digits, icons or symbols need illumination
LED Backlight for Character LCD	16×2, 20×4 and other character LCD modules	Selected when text-based monochrome LCD needs backlight support
LED Backlight for Graphic LCD	128×64, 240×128 and similar graphic LCD modules	Selected when pixel-based monochrome LCD needs uniform illumination
Custom Shape LED Backlights	Special LCD glass and non-standard product housings	Selected when a standard rectangular backlight cannot match the product
Through-Hole LED Backlights	Modules requiring holes, screws or special mechanical openings	Selected when the backlight must match structural openings
LED Backlight with Wire / Connector / PIN	OEM LCD-module and product-PCB integration	Selected when the electrical connection must match the final assembly

Component, Not a Complete Display

LED Backlight normally needs LCD glass, polarizers, driver electronics and mechanical structure to become a complete LCD module.

Reference LED Backlight Directions

These examples show common custom directions, not fixed standard models.

Backlight Type	Size	Color	Application	Connection
Edge LED Backlight	Custom / through-hole	Blue	LCD module backlight or illumination	Wire
Bottom LED Backlight	Custom	Red	LCD module backlight or illumination	Wire + connector
Edge LED Backlight	Custom	White	Monochrome LCD display	Metal PIN
Edge LED Backlight	Custom	Blue	Monochrome LCD display	Wire
Edge LED Backlight	Custom / through-hole	Red	Monochrome LCD display	Hard PIN
Edge LED Backlight	Custom	Green	LCD module backlight or illumination	Metal PIN
Edge LED Backlight	Custom / through-hole	Blue	LCD module backlight or illumination	Wire
Edge LED Backlight	Custom	White	Monochrome LCD display	Wire

Reference Only

Final brightness, uniformity, LED position, Light Guide Plate, film stack, thickness and connection must be confirmed together.

What Is an LED Backlight?

LCD Illumination

Provides the light source needed by transmissive and transflective LCD structures.

Optical Distribution

Uses a Light Guide Plate and films to distribute light across the viewing area.

Electrical and Mechanical Component

Includes LEDs, PCB or FPC, connection and product-specific mechanical matching.

A Typical LED Backlight May Include

LED lamps
Light Guide Plate
Diffusion Film
Reflective Film
Brightness Enhancement Film
PCB or FPC
Wire, connector or PIN
Light-blocking film
Mechanical frame
Adhesive structure

Core Function

LED Backlights are selected when an LCD needs controlled illumination for readability and product appearance.

Edge LED Backlight vs Bottom LED Backlight

Factor	Edge LED Backlight	Bottom LED Backlight
LED Position	LEDs enter from one or more edges	LEDs are placed behind the display area
Light Distribution	Relies strongly on the Light Guide Plate	Relies on LED spacing and diffusion
Thickness	Can be thinner	Usually thicker
Uniformity Design	Dot pattern and film stack are critical	LED spacing and diffusion distance are critical
Best For	Thin LCD modules and side-light structures	Direct illumination and selected simple structures
Selection Logic	Choose when module thickness matters	Choose when direct illumination is more practical

Selection Rule

Choose Edge LED for a thinner side-light structure. Choose Bottom LED when direct illumination is more suitable for the module design.

LED Backlight Colors

White LED Backlight

Common general-purpose direction for monochrome LCD modules and product displays.

Blue LED Backlight

Selected for specific visual effects, product styling and replacement projects.

Green LED Backlight

Used for meters, instruments and selected legacy-style displays.

Red LED Backlight

Used for warning, instrument and product-design effects.

Yellow-Green LED Backlight

Common in selected industrial, instrument and legacy applications.

Custom Color Review

Project-based LED colors can be reviewed with the LCD mode and polarizer.

Color Selection Note

Backlight color should be reviewed with the LCD display mode, polarizer, printed overlay, readability and final product appearance.

LED Backlight Components

Component	Main Function	Main Review Factors
LED Lamps	Light source	LED type, color, brightness, current, quantity and position
Light Guide Plate	Distributes edge light across the area	Dot pattern, thickness, light direction and tooling
Diffusion Film	Improves uniformity	Reduces bright spots and spreads light
Reflective Film	Redirects light toward the LCD	Improves light utilization
Brightness Enhancement Film	Improves front brightness	Used when higher efficiency is required
Light-Blocking Film	Controls light leakage	Matches the viewing area and mechanical opening
PCB or FPC	Carries LEDs and electrical connection	Selected by thickness, flexibility and assembly
Wire / Connector / PIN	Connects backlight to the product PCB	Voltage, current, polarity and serviceability

Complete Optical Stack

Backlight performance depends on LEDs, Light Guide Plate, optical films, thickness, viewing area and mechanical structure—not only the nominal LED brightness.

LED Backlight Connection Options

Connection Direction	Best For	Main Review Factors
Wire	Flexible product assembly	Length, gauge, polarity and routing
Wire with Connector	Serviceable OEM assembly	Connector model, pin direction and locking
Metal PIN	Direct PCB insertion	Pitch, length, direction and soldering
Hard PIN	Stable rigid connection	Mechanical support and PCB alignment
PCB Connection	Integrated module structure	Board position, mounting and electrical rating
FPC Connection	Thin or flexible structures	Tail direction, stiffener, pads and bending
Custom Connector	Project-specific products	Availability, pitch, mating and assembly

Connection Selection Rule

Connection should be selected according to product assembly, PCB position, soldering, thickness, repairability and mass-production process.

LED Backlight Customization Options

Backlight size
Viewing or lighting area
Custom outline
Through-hole design
Edge LED or Bottom LED structure
LED color
Brightness requirement
Uniformity requirement
LED quantity and position
Light Guide Plate design
Dot-pattern review
Diffusion Film
Reflective Film
Brightness Enhancement Film
Light-blocking film
Backlight thickness
PCB or FPC structure
Wire direction and length
Connector type
Metal PIN or hard PIN
Voltage and current
Dimming requirement
Matching with LCD glass
Matching with Segment, Character or Graphic LCD
Matching with COB or COG LCD
Existing backlight replacement

Customization Boundary

Brightness, uniformity, thickness, LED position, Light Guide Plate, optical films, connection and product housing affect each other and must be reviewed as one structure.

Matching LED Backlights with LCD Modules and LCD Glass

For Monochrome LCD Modules

Segment LCD
Character LCD
Graphic LCD
Dot Matrix LCD
COB LCD
COG LCD

For Custom LCD Glass

TN LCD Glass
HTN LCD Glass
STN LCD Glass
FSTN LCD Glass
VA LCD Glass

Main Matching Factors

Glass size and viewing area
LCD mode and polarizer
Backlight color and brightness
Uniformity and thickness
Connection and housing

Design Together

Custom LCD glass and LED Backlight should be designed together when the final product requires illumination.

LED Backlight Comparisons

LED Backlight vs LCD Module

Item	LED Backlight	LCD Module
Product Scope	Light-source component	Complete or semi-complete display module
Includes LCD Glass	No	Yes
Main Function	Provides illumination	Displays information
Typical Parts	LEDs, LGP, films, PCB/FPC and connection	LCD glass, polarizer, backlight, PCB, IC and connector
Selection Logic	Choose when only the light source is needed	Choose when the display module is required

LED Backlight vs LCD Controller Board

Item	LED Backlight	LCD Controller Board
Main Function	Provides light	Drives or controls the display
Electrical Role	LED power and brightness	Signal conversion, timing and panel control
Includes Display Signal	No	Yes
Selection Logic	Choose for illumination	Choose for display driving and signal control

LED Backlight vs LED Display

Item	LED Backlight	LED Display
Main Role	Illuminates an LCD	Creates the image with LED pixels
Image Formation	No	Yes
Used With	LCD glass or LCD module	Independent LED-display system
Selection Logic	Choose for LCD illumination	Choose when LEDs are the actual display pixels

Typical Applications

Segment LCD Displays

Meters, appliances, HVAC controls and fixed icon displays.

Character LCD Displays

16×2, 20×4 and other text modules.

Graphic and Dot Matrix LCD

Pixel-based monochrome graphics and icons.

COB and COG LCD Modules

Custom monochrome LCD module integration.

Medical and Test Equipment

Readable displays in controlled environments.

Home Appliances

Timers, controls and product-status displays.

Industrial Control Panels

Backlit user interfaces and equipment displays.

Handheld and Power Products

Portable instruments, chargers and control products.

Replacement Projects

Matching old size, color, voltage, current and connection.

How to Select the Correct LED Backlight

Confirm the LCD Type

Segment, Character, Graphic, Dot Matrix, COB, COG or custom LCD glass.

Define the Lighting Area

Confirm outer size, viewing area, holes and mechanical outline.

Choose Edge or Bottom LED

Balance thickness, direct illumination, uniformity and cost.

Define Color and Optical Target

Confirm color, brightness, uniformity and appearance.

Confirm Electrical and Connection Needs

Voltage, current, dimming, wire, connector, PIN, PCB or FPC.

Validate with the Final LCD and Housing

Check readability, uniformity, light leakage, heat, fit and assembly.

When a Custom LED Backlight Is the Right Choice

Suitable For

Known LCD glass or module dimensions
Custom color or brightness
Thin Edge LED structures
Direct Bottom LED structures
Through-holes or special outlines
Custom wire, connector or PIN
Monochrome LCD module integration
Existing backlight replacement

May Require Another Product Direction

A complete LCD module is required
An LCD Controller Board is required
A full-color TFT LCD is required
An LED Display is required
No LCD size or lighting area is defined
Voltage and current are unknown
A universal backlight for any LCD is expected
The quantity cannot support customization

Choose the Correct Product Level

LED Backlight, LCD Module, LCD Glass or Controller Board?

The correct route depends on whether the project needs illumination only or also the LCD glass, driver electronics and complete module structure.

Project Requirement	Recommended Product Direction
Main LCD component family	LCD Displays & Components
Segment, Character, Graphic or Dot Matrix LCD	Monochrome LCD Displays
TN, HTN, STN, FSTN or VA LCD glass	LCD Glass Panels
Fixed digits, icons or symbols	Segment LCD Displays
Fixed rows of text	Character LCD Displays
Pixel-based monochrome graphics	Graphic LCD Displays
LCD module with PCB and bonded IC	COB LCD Displays
Compact LCD module with IC on glass	COG LCD Displays
Signal conversion and display driving	LCD Controller Boards
Full-color TFT LCD module	TFT LCD Displays

Monochrome LCD Displays →LCD Glass Panels LCD Controller Boards

What Information Should You Provide?

Backlight and LCD Information

Backlight outer size
Viewing or lighting area
Matched LCD glass or module
Edge LED or Bottom LED
Color, brightness and uniformity

Mechanical and Electrical Information

Thickness limitation
Through-holes and special outline
LED position
Voltage and current
Dimming requirement

Connection and Commercial Information

Wire, connector, PIN, PCB or FPC
Wire length or FPC direction
Operating temperature
Application and quantity
Drawing, photos or old sample

For Replacement Projects

Provide clear photos of the old backlight, LCD module, connection area, label, voltage or current information and complete product assembly.

Related LCD, Controller and Cable Products

Related Page	When to Visit
LCD Displays & Components	Main LCD component family
Monochrome LCD Displays	Segment, Character, Graphic and Dot Matrix LCD
LCD Glass Panels	Custom TN, HTN, STN, FSTN and VA glass
Segment LCD Displays	Fixed digits and icons
Character LCD Displays	Fixed rows of text
Graphic LCD Displays	Pixel-based monochrome graphics
COB LCD Displays	LCD module with PCB and bonded IC
COG LCD Displays	Compact LCD module with IC bonded on glass
LCD Controller Boards	Display driving and backlight control
FPC & Cable Assemblies	Custom backlight and display interconnection
TFT LCD Displays	Full-color TFT LCD modules

FAQ

What is an LED Backlight?

An LED Backlight is the light source installed behind or beside an LCD display to improve readability in indoor, low-light or controlled-lighting environments.

Is an LED Backlight the same as an LED Display?

No. An LED Backlight only provides illumination for an LCD. An LED Display uses LEDs as the image-forming pixels.

Is an LED Backlight a complete LCD module?

No. It is one component of an LCD module. A complete module may also include LCD glass, polarizers, PCB, driver IC, connector and mechanical structure.

Why does an LCD need a backlight?

LCD glass does not emit light by itself. Transmissive and transflective LCD structures need a controlled light source for indoor or low-light readability.

What is the difference between Edge LED and Bottom LED backlight?

Edge LED places LEDs beside the light guide plate and can support thinner modules. Bottom LED places LEDs behind the display area and uses direct illumination.

Which backlight structure is thinner?

Edge LED can normally support a thinner structure when the light guide plate and film stack are properly designed.

Can the LED backlight color be customized?

Yes. White, blue, green, red, yellow-green and project-based color directions can be reviewed.

How should the backlight color be selected?

The color should match the LCD mode, polarizer, printed overlay, readability target and final product appearance.

Can the LED backlight size and shape be customized?

Yes. Size, outline, viewing area, through-holes, thickness and special mechanical shapes can be reviewed according to the LCD and enclosure.

Can an LED backlight include through-holes?

Yes. Through-holes and special openings can be reviewed when screws, product structures or mechanical clearances must pass through the backlight.

What parts are included in an LED backlight?

A backlight may include LEDs, light guide plate, diffusion film, reflective film, brightness-enhancement film, PCB or FPC, wire, connector, PIN, light-blocking film and mechanical support.

What does the Light Guide Plate do?

The Light Guide Plate distributes light from edge-mounted LEDs across the display area. Its pattern and design strongly affect brightness and uniformity.

What does the Diffusion Film do?

Diffusion Film spreads light more evenly and helps reduce visible bright spots.

What does the Reflective Film do?

Reflective Film redirects light toward the display area and improves light utilization.

Can a Brightness Enhancement Film be added?

Yes. It can be reviewed when higher front brightness or better light efficiency is required.

Can the backlight use PCB or FPC?

Yes. PCB is common for stable LED mounting. FPC can be reviewed when a thinner or more flexible structure is needed.

Which connection methods are available?

Wire, wire with connector, metal PIN, hard PIN, PCB connection, FPC connection and custom connector directions can be reviewed.

Can LED Backlights be used with monochrome LCD modules?

Yes. They are commonly used with Segment, Character, Graphic, Dot Matrix, COB and COG LCD modules.

Can you replace an existing LED backlight?

Yes. Please provide the old sample, photos, size, color, connection method, voltage, current, matched LCD and product-assembly structure.

What information is required for quotation?

Please provide backlight size, viewing area, matched LCD, edge or bottom LED direction, color, brightness, uniformity, thickness, holes, LED position, voltage, current, connection method, wire or FPC direction, operating temperature, application, quantity, drawing and replacement sample if available.

Start Your Custom LED Backlight Project

Send us the backlight size, lighting area, matched LCD, Edge or Bottom LED direction, color, brightness, uniformity, thickness, holes, voltage, current, connection, application, quantity and drawing.

DisplayMan will review the optical structure, LED position, Light Guide Plate, film stack, PCB or FPC, wire, connector, PIN and mechanical fit with the LCD module.

LED Backlight is the light-source component of an LCD system. It is not an LED Display and it is not an LCD Controller Board. Final performance depends on the complete optical, electrical and mechanical structure.