Curved Display Frame Guide Rails for Uniform Backlighting
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Solution Overview
Problem
Large flat panel LCD screens face issues with increased viewing angle differences and glare due to their flat design, and when curved, traditional backlighting units lead to non-uniform light intensity, resulting in lower image quality at the edges and increased device size and weight.
Innovation Solution
A curved frame with guide rails maintains uniform spacing between a curved display panel and backlight unit, ensuring consistent light intensity across the panel by bending the frame to match the curvature of both components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If the spacing between the backlighting light source and the curved screen is increased to reduce backlighting intensity difference, then the uniformity of light intensity is improved, but the overall volume and weight of the display device increase
Solution Approach 1:
The backlight unit is designed with a curved surface that matches the curvature of the display panel, allowing the light source to maintain a substantially uniform spacing relationship with the screen surface across different viewing angles. This curvature matching enables uniform light intensity distribution without requiring increased overall spacing between components.
2Illumination intensity
If the spacing between the backlighting light source and the curved screen is increased to reduce backlighting intensity difference, then the uniformity of light intensity is improved, but the weight of the device increases
Solution Approach 1:
The backlight unit is designed with a curved surface that matches the curvature of the display panel, allowing the light source to maintain a substantially uniform spacing relationship with the screen surface across different viewing angles. This curvature matching enables uniform light intensity distribution without requiring increased overall spacing between components, thereby avoiding additional weight.
3Device complexity
If a flat panel backlighting unit is used with a concavely curved liquid-crystal panel, then the structure is simple, but the uniformity of light intensity is lost at the peripheral edges
Solution Approach 1:
The backlight unit is designed with a curved surface that matches the curvature of the display panel, allowing the light source to maintain a substantially uniform spacing relationship with the screen surface across different viewing angles. This curvature matching enables uniform light intensity distribution without requiring increased overall spacing between components.
Data Source
AI summary
A curved frame is provided for securing therein a display panel and an optionally curved backlight unit. The curved frame includes an upper frame part, a lower frame part, a left frame part and a right frame part. The upper frame part has a first set of curved guide rails formed thereon, which guide rails are bent in accordance with first curvatures of upper sides of the display panel and the backlight unit. The lower frame part has a second set of guide rails formed thereon, which guide rails are bent in accordance with second curvatures of lower sides of the display panel and the backlight unit. The left frame part is combined with each of first edge portions of the upper and lower frame parts. The right frame part is combined with each of second edge portions of the upper and lower frame parts.