Display Device Light Guide Plate Optical Microstructures Glare Reduction
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Solution Overview
Problem
Conventional computer monitor lamps require additional wiring for power connection and can cause user discomfort due to high brightness glare.
Innovation Solution
A display device comprising a display element, a light guide plate with optical microstructures, and a light-emitting element, which guides light to illuminate the desktop while reducing glare through angled emission and shading.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional computer monitor lamp is used to illuminate the desktop, then the desktop can be illuminated, but additional wiring is needed for power connection
Solution Approach 1:
The patent combines the display device with lighting functionality by integrating a light guide plate and light-emitting elements into the display structure. The light guide plate is disposed on the display side of the display element, and light-emitting elements are positioned to illuminate through the light guide plate, merging computing and lighting functions into a single integrated device that eliminates separate wiring requirements.
2Illumination intensity
If a conventional computer monitor lamp is used to illuminate the desktop, then the desktop can be illuminated, but the light with high brightness may be transmitted to the eyes of user causing discomfort due to glare
Solution Approach 1:
The patent applies local quality by creating different optical characteristics in different regions of the light guide plate. The front surface of the light guide plate has a first area with a first transmittance and a second area with a second transmittance that is different from the first transmittance. This regional variation in optical properties directs light away from the user's eyes while maintaining adequate illumination on the desktop, thereby reducing glare in specific zones without compromising overall lighting effectiveness.
3Object-affected harmful factors
If a light guide plate with optical microstructures is used, then glare is reduced by controlling light emission angles, but the device structure becomes more complex
Solution Approach 1:
The patent replaces complex mechanical shading structures with optical microstructures on the light guide plate surface. Instead of using physical barriers or movable components to control light direction, the invention uses micro-scale optical features that passively redirect light through refraction and reflection principles. This substitution of mechanical control with optical properties achieves glare reduction while maintaining a simpler, more integrated device structure.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution provides a simple structure for illuminating the desktop without additional lamps, reduces glare by controlling light emission angles, and eliminates the need for additional wiring.
Implementation Method 1
The light guide plate has a light-emitting surface, a light-incident surface, and a surface. The light-emitting surface faces away from the display side. The light-incident surface is located between the light-emitting surface and the surface.
Implementation Method 2
The light guide plate guides light to illuminate the desktop while reducing glare through angled emission
Implementation Method 3
The surface has a plurality of optical microstructures, and the light-incident surface is located between the light-emitting surface and the surface
Implementation Method 4
reducing glare through angled emission
Data Source
AI summary
A display device includes a display element, a light guide plate, and a light-emitting element. The display element has a display side and a back side, and the display side is opposite to the back side. The light guide plate is disposed on the display side. The light guide plate has a light-emitting surface, a light-incident surface, and a surface. The light-emitting surface faces away from the display side. The surface faces toward the display side. The surface has a plurality of optical microstructures, and the light-incident surface is located between the light-emitting surface and the surface. The light-emitting element is disposed opposite to the light-incident surface.