LCD Optical Sheet Protrusions Eliminate Panel Guider
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Solution Overview
Problem
Existing liquid crystal display (LCD) devices with direct type backlight units have a complex configuration due to multiple components, making it difficult to maintain slimness and increasing manufacturing costs.
Innovation Solution
The LCD device incorporates a reflection sheet with inwardly projecting supporters, a bottom cover with inwardly projecting supporters, and optical sheets with fixed protrusions that project outwardly, allowing the edges of the LCD panel to be supported directly, eliminating the need for a panel guider and simplifying the configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a direct type backlight unit with multiple light sources is used to achieve higher brightness and wider luminescent surface, then the illumination performance is improved, but the device complexity and difficulty to maintain slimness increase due to multiple components and panel guider
Solution Approach 1:
The patent merges the panel guider function into the optical sheets by forming fixed protrusions directly on the optical sheets that engage with recesses in the LCD panel. This integration eliminates the need for a separate panel guider component while maintaining the structural support and alignment functions, thereby reducing device complexity while preserving the illumination performance provided by the direct type backlight unit
Solution Approach 2:
The optical sheets are designed to serve multiple functions: they diffuse and converge light from the multiple light sources to maintain high brightness and wide luminescent surface, while simultaneously providing structural support to the LCD panel through fixed protrusions that engage with recesses in the panel. This multi-functionality reduces the need for separate components and simplifies the overall configuration
2Stability of the object's composition
If multiple components including panel guider are used to support LCD panel and optical sheets, then the structural stability is improved, but the manufacturing cost increases
Solution Approach 1:
The patent combines the panel guider support function with the optical sheets by forming fixed protrusions on the optical sheets that engage with recesses in the LCD panel. This integration reduces the number of separate components, simplifies the assembly process, and lowers manufacturing costs while maintaining structural stability through the engineered engagement features
Solution Approach 2:
The optical sheets are designed with fixed protrusions that automatically engage with recesses in the LCD panel during assembly, providing self-alignment and self-support functionality. This reduces the need for additional support structures and simplifies the manufacturing process, thereby reducing costs while maintaining structural stability
Data Source
AI summary
An LCD device with a simplified configuration is disclosed. The LCD device includes a reflection sheet configured to include an opened upper surface, a plurality of first supporters formed to inwardly project from the side walls of the reflection sheet, a bottom cover configured to receive the reflection sheet, a plurality of second supporters formed to inwardly project from the side walls of the bottom cover, and optical sheets disposed on the reflective sheet and configured to include a plurality of fixed protrusions which are formed to outwardly project from the edges of the optical sheets. The edges of a lower surface of a liquid crystal display panel are placed on the first supporters, and the fixed protrusions of the optical sheets are placed on the second supporters.