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Home Solutions Sunlight Readable Display Solution

Introduction

Aiming at the industry pain points of blurred reflection and insufficient brightness of display screens in strong outdoor light environments, Chenghao Optoelectronics' outdoor sunlight display solution relies on the technical accumulation of 120+ R&D engineers and the large-scale manufacturing capabilities of three production bases to create a professional display solution that integrates high-brightness backlight, anti-glare treatment, and optical bonding.
The solution covers a full-size range of 0.85-13.3 inches, passes CE, RoHS and other certifications, and can achieve a maximum brightness output of 1000cd/m². With AG anti-glare glass and optical adhesive bonding technology, it eliminates more than 90% of mirror reflections, ensuring that the equipment remains clearly visible under 5000-10000nits of strong light. From industrial control screens to outdoor portable devices, Chenghao provides global customers with one-stop strong light display solutions from technical design to mass production with the "customized hardware + full-process service" model.

Requirements Analysis

As display application scenarios expand from traditional indoor to outdoor and semi-outdoor areas, "Sunlight Readable" has become a core consideration in display technology design. Based on the brightness perception characteristics of the human eye, the screen brightness must be more than 2.5 times the ambient brightness to achieve a clear and comfortable reading experience.
Relying on the technical accumulation of 120+ R&D engineers, Chenghao Optoelectronics integrates high-brightness backlight design, AG anti-glare processing and advanced optical integration technology to build a multi-dimensional outdoor display enhancement solution, comprehensively improving the visual readability and operational reliability of the product in strong light environments, and providing professional display support for industrial control, smart transportation and other scenarios.

Solution Advantages

Solution 1: High-brightness TFT display module

  • Technical principle High-brightness backlight technology boosts LCD display visibility by 3-5 times the standard brightness, reaching up to 2800cd/m², making it viewable in strong ambient light. It integrates efficient LED chips and optimizes optical design to ensure uniform brightness and clear visibility, even in outdoor conditions.
  • Core advantages: Direct solution for strong light visibility This technology significantly enhances display visibility in bright light with over 300:1 contrast ratio and 40% clearer images than standard screens. It supports dynamic content with high refresh rates, outperforming static displays. The mature, compatible solution offers flexible brightness customization for various outdoor conditions.

Solution 2: Anti-glare (AG) surface treatment

  • Technical principle Anti-glare (AG) treatment on display glass creates a microscopic rough texture that transforms direct reflections into scattered light, reducing glare. This is achieved by controlling surface roughness to disperse light effectively without majorly impacting transmittance, maintaining screen brightness.
  • Core advantages: Multi-dimensional improvement of outdoor display experience AG glass cuts glare by over 70% and boosts screen contrast, ensuring clear visibility in bright conditions. It pairs well with high-brightness backlights, enhancing clarity by 40%. The AG surface also offers a better touch experience, is durable, and works well in both outdoor and indoor settings with strong lighting.

Solution Advantages

Solution 1: High-brightness TFT display module

  • Technical principle High-brightness backlight technology boosts LCD display visibility by 3-5 times the standard brightness, reaching up to 2800cd/m², making it viewable in strong ambient light. It integrates efficient LED chips and optimizes optical design to ensure uniform brightness and clear visibility, even in outdoor conditions.
  • Core advantages: Direct solution for strong light visibility This technology significantly enhances display visibility in bright light with over 300:1 contrast ratio and 40% clearer images than standard screens. It supports dynamic content with high refresh rates, outperforming static displays. The mature, compatible solution offers flexible brightness customization for various outdoor conditions.
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Solution 2: Anti-glare (AG) surface treatment

  • Technical principle Anti-glare (AG) treatment on display glass creates a microscopic rough texture that transforms direct reflections into scattered light, reducing glare. This is achieved by controlling surface roughness to disperse light effectively without majorly impacting transmittance, maintaining screen brightness.
  • Core advantages: Multi-dimensional improvement of outdoor display experience AG glass cuts glare by over 70% and boosts screen contrast, ensuring clear visibility in bright conditions. It pairs well with high-brightness backlights, enhancing clarity by 40%. The AG surface also offers a better touch experience, is durable, and works well in both outdoor and indoor settings with strong lighting.
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Solution 3: Optical Bonding（OCA）

  • Technical Principle: Optical Revolution to Eliminate Air Layer Reflection Optical bonding uses clear adhesive to replace the air between the display and cover glass, nearly eliminating light reflection. This process involves either OCA full bonding for precision displays or OCR water glue bonding for cost-effective, larger screens, reducing reflectivity to under 1%.
  • Core advantages: Comprehensive improvement from optical performance to durability This technology significantly enhances display visibility in bright light with over 300:1 contrast ratio and 40% clearer images than standard screens. It supports dynamic content with high refresh rates, outperforming static displays. The mature, compatible solution offers flexible brightness customization for various outdoor conditions.
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Solution 4：Transflective LCD Technology 

  • Technical principle: optical fusion of transmission and reflection Semi-transmissive LCDs feature dual modes: they use natural light in bright conditions and a backlight in low light. This balanced design ensures efficient brightness and power use in any lighting.
  • Core advantages: Double breakthroughs in strong light visibility and low power consumption Semi-transmissive LCDs leverage natural light, cutting power use by 50% and extending battery life, ideal for outdoor devices. They maintain high visibility in bright light with a contrast ratio up to 200:1 and diffuse reflection for glare-free viewing. These displays also offer wide temperature operation, simplified structure, and enhanced reliability.
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Customer Reviews

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The displays work as expected. Very good packaging and fast shipping. Thank you!

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April 05, 2025

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Good product with large angle view, brightness and vivid colorTested with PlC32MZ DA with RGBA 32bit interface, custom board.

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FAQ

How to ensure the life of the display screen in high brightness mode?

Using long-life LED chips and intelligent temperature control circuits, the light decay is less than 10% when working continuously for 50,000 hours at a brightness of 1000cd/m², which is far more than the industry average of 2 years of service life. With a 12-month warranty, you can eliminate after-sales concerns.

What is the minimum order quantity for customized solutions?

Using long-life LED chips and intelligent temperature control circuits, the light decay is less than 10% when working continuously for 50,000 hours at a brightness of 1000cd/m², which is far more than the industry average of 2 years of service life. With a 12-month warranty, you can eliminate after-sales concerns.

How to deal with extreme outdoor temperature changes?

The product has an operating temperature range of -20℃~+70℃. The backlight preheating function is automatically started in low temperature environments. At high temperatures, the heat is dissipated through the aluminum-magnesium alloy backplane. The temperature difference adaptability reaches 90℃, and it has been verified by the -15℃ to 60℃ cycle test.

Do you provide waterproof solutions for outdoor touch screens?

The product has an operating temperature range of -20℃~+70℃. The backlight preheating function is automatically started in low temperature environments. At high temperatures, the heat is dissipated through the aluminum-magnesium alloy backplane. The temperature difference adaptability reaches 90℃, and it has been verified by the -15℃ to 60℃ cycle test.

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