Appotronics –  Inventor of ALPD laser Display Technology 

What is ALPD®?

ALPD® (Advanced Laser Phosphor Display) is a semiconductor laser light source developed by Appotronics in 2007. It combines laser-excited phosphor with mixed-color lasers to produce bright, efficient, and speckle-free light for displays and projectors.

Advantages of ALPD® Technology

High light efficiency

Environmental protection and energy saving

The light efficiency of ALPD® projectors is much higher than that of other light sources.

High brightness

Powered by ALPD® technology, these projectors deliver up to 60,000 lumens brightness—securing global leadership in laser display brightness performance.

Wide color gamut

The color performance meets DCI cinema-grade standards, with a maximum color gamut reaching 120% of Rec. 2020.

High contrast

Products using ALPD® 4.0 can achieve a contrast ratio of 2500:1, far exceeding the cinema standard.

Continuous innovation of ALPD® Technology

Dedicating over a decade to technological research, Appotronics has evolved from ALPD® 1.0 to ALPD® 5.0. This journey has delivered not only advantages like high brightness, vibrant colors, and speckle-free performance, but has also elevated the standards of both technology and industry. It has gradually built a comprehensive technological system and continues to innovate.

ALPD®5.0

1. ALPD® 5.0, officially released in November 2022, takes advantage of more flexible core components.
2. Larger color gamut (Reaches 120% Rec. 2020, 165% DCI-P3, 210% Rec. 709)
3. Higher luminous efficiency (ALPD® 5.0 Pro > 20 lm/W; ALPD® 5.0 Lite > 10 lm/W)
4. Compact size (more flexible optical engine configurations)

ALPD®4.0

1. ALPD® 4.0, successfully developed in 2018
2. Larger color gamut (Reaches 98.5% of Rec. 2020)
3. The contrast ratio of products using ALPD® 4.0 can reach 2500:1, far exceeding the cinema standard
4. Higher luminous efficiency (30% more efficient than ALPD® 3.0 products)

ALPD®3.0

1. ALPD® 3.0, successfully developed in 2015
2. Light source efficiency increased by 20%
3. DCI-P3 color gamut
4. 100% color brightness

ALPD®2.0

1. ALPD® 2.0, successfully developed in 2012
2. High brightness
3. Visual safety design
4. Same optical path, good uniformity

ALPD®1.0

1. In 2007, Appotronics proposed the ALPD laser display technology and applied for a patent;
2. It solved the key challenges in the industrialization of laser display;
3. High brightness, wide color gamut, less speckle

ALPD: Revolutionizes Laser Display by Overcoming Key Hurdles in Laser Display Industrialization.

Appotronics' deep grasp of technology and the industry shapes its competitive standing—and it is this that has propelled ALPD to become a mainstream technology.
Over 50% conversion efficiency in cinemas. Light efficiency has improved by 38% and is continuously improving.
Excellent thermal stability; no need for TEC; no speckle.
Long service life.
Solved the performance issues; resolved the cost issues.

Market Coverage

Appotronics has invented a new light source technology and transformed it into products that have entered people's daily lives, opening up a broader vision and more possibilities for everyone. With the light of technology, we create a beautiful vision. New light, new life.