Display Module Compensation Structure for Uniform Color Temperature
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Solution Overview
Problem
Liquid Crystal Display (LCD) modules with color conversion film layers experience display defects due to light of a certain color being emitted around the module, leading to non-uniform color temperature and visual effects.
Innovation Solution
A display module design incorporating a compensation structure with a fluorescent material layer in the peripheral region that absorbs and generates target light, extending into the middle region, and a structured fluorescent material layer width distribution to ensure uniform color temperature across the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a color conversion film layer architecture is used to meet high color gamut requirements, then color display performance is improved, but light of the light source color occurs around the LCD module causing display defects
Solution Approach 1:
The patent applies local quality by differentiating the fluorescent material layer width between film-fixed side and non-film-fixed side. The non-film-fixed side has a wider fluorescent material layer to compensate for the light source color leakage that occurs in that region, while the film-fixed side has a narrower layer. This localized adjustment addresses the display defect specifically where it occurs without affecting the overall color gamut performance.
Solution Approach 2:
The patent changes the parameter of fluorescent material layer width to control the compensation effect. By adjusting the width of the fluorescent material layer on different sides (narrower on film-fixed side, wider on non-film-fixed side), the patent optimizes the compensation for light source color leakage while maintaining uniform color temperature across the display panel.
2Stability of the object's composition
If the fluorescent material layer width is increased to improve color temperature uniformity, then display uniformity is improved, but light absorption and energy utilization may be reduced
Solution Approach 1:
The patent applies local quality by setting different fluorescent material layer widths for different regions. The non-film-fixed side has a wider layer to improve color temperature uniformity where light source color leakage occurs, while the film-fixed side has a narrower layer to maintain light utilization efficiency. This regional differentiation optimizes both color uniformity and energy utilization.
Solution Approach 2:
The patent optimizes the fluorescent material layer width parameter to balance color temperature uniformity and light utilization. The width is carefully controlled to be wider only where needed (non-film-fixed side) to prevent color leakage, while maintaining a narrower width on the film-fixed side to ensure efficient light transmission and energy utilization.
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 enhances light utilization and prevents display defects by ensuring a uniform color temperature, improving the visual effect and reducing bluish light emission around the LCD module.
Implementation Method 1
the peripheral region is provided with a fluorescent material layer for absorbing light emitted by the light source and generating target light
Data Source
AI summary
The present disclosure provides a display module and a display device. In the display module, light emitted by a light source passes through a color conversion film layer and an optical material layer into a display panel; the optical material layer is fixed on a film-fixed side; compensation structure includes a middle region and a peripheral region surrounding the middle region at a side facing the color conversion film layer, an orthogonal projection of the middle region onto a plane where a light-exiting surface of the display panel is located coincides with a display region of the display panel, an orthogonal projection of the peripheral region onto the plane at least partially overlaps with a non-display region of the display panel, the peripheral region is provided with a fluorescent material layer; and at least a part of the fluorescent material layer extends to the middle region.