Arc-Prism Display Backlight for Uniform Light and Low Glare
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Solution Overview
Problem
Traditional displays suffer from poor light uniformity, glare, and light energy loss due to single light refraction paths and conventional prism structures, leading to eye discomfort and fatigue.
Innovation Solution
An eye protection display with a multi-layered prism structure comprising arc-shaped converging prisms, a light guide component, and a light source component, including a dual prism sheet film and diffusion films, to achieve precise focusing and uniform light distribution, reducing glare and energy loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional prism structures with planar or right-angle structures are used, then the device complexity is low, but the light uniformity is poor and glare occurs on the screen surface
Solution Approach 1:
The patent applies curvature by replacing conventional planar or right-angle prism structures with arc-shaped converging prisms. The arc-shaped side surfaces enable multiple light refraction paths, improving light uniformity and eliminating glare while maintaining reasonable structural complexity.
Solution Approach 2:
The patent segments the light refraction process by introducing multiple prism layers (first prism layer, second prism layer) with different orientations. Each layer contributes to light concentration and uniformity through coordinated refraction, achieving superior light distribution compared to single-prism structures.
2Loss of energy
If traditional backlight modules with single light refraction path are used, then the device complexity is low, but the light energy loss is significant
Solution Approach 1:
The patent transitions from single-dimension refraction in conventional prisms to multi-dimensional refraction by arranging prism layers at different angles (e.g., 45 degrees between first and second prism layers). This creates multiple refraction paths in different spatial dimensions, reducing light energy loss through more efficient light guidance.
3Object-affected harmful factors
If conventional prism structures are used, then the manufacturing precision requirement is low, but the glare on screen surface is severe
Solution Approach 1:
The patent applies local quality by designing different prism configurations for different regions and layers. The first prism layer uses arc-shaped converging prisms oriented in one direction, while the second prism layer uses similarly shaped prisms oriented at a different angle, with each layer's local structure optimized for its specific function in the light guidance system.
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 effectively minimizes glare and scattered light, enhances visual acuity, and reduces eye fatigue by ensuring uniform light distribution and efficient light utilization, improving overall display stability and user comfort.
Implementation Method 1
The first side surface is an arc-shaped first side surface... enables smooth transmission of light during refraction and reflection, reducing the stimulation of direct and high-intensity beams on the eyes, minimizing glare and scattered light
Implementation Method 2
A reflective film is provided on the lower surface. The reflective film is configured for reflecting the light emitted from the light source component to the lower surface to the upper surface.
Data Source
AI summary
An eye protection display includes a main body. The main body includes a display panel, a first prism layer, a light guide component, and a light source component. The light source component is used for generating light. The light generated by the light source component sequentially passes through the light guide component, a converging prism, and the display panel, thereby displaying an image through the display panel. The first prism layer includes a plurality of protruding first converging prisms. The first converging prism includes a first bottom surface, a first top surface, and a first side surface. The first side surface is connected to the first bottom surface and the first top surface. The first side surface is an arc-shaped first side surface.