Display Panel Polarizer Thickness Variation for Strength
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Solution Overview
Problem
Existing display panels exhibit abnormal appearance under pressure due to deformation of the polarizer, leading to changes in the reflected hue of the display surface when not in operation, caused by insufficient supporting strength in the display area.
Innovation Solution
A display panel design with a second substrate having a polarizer and at least one first layer, where the thickness of the first layer in the display area is greater than in the non-display area, enhancing the supporting strength and preventing downward recession under pressure, thus minimizing hue changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the thickness of the first layer is increased in the display area, then the supporting strength is improved and polarizer deformation is prevented, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies local quality by making the first layer have different thicknesses in different areas: a first thickness in the display area and a second thickness in the non-display area. This allows the display area to have enhanced supporting strength to prevent polarizer deformation while keeping other areas simpler, thus resolving the contradiction between strength improvement and device complexity.
2Strength
If the thickness of the first layer is increased in the display area, then the supporting strength is improved, but the material usage and manufacturing costs increase
Solution Approach 1:
The patent uses local quality to concentrate material only where needed - the first layer has greater thickness specifically in the display area where supporting strength is required to prevent polarizer deformation. The non-display area maintains a thinner second layer, reducing overall material consumption while still achieving the strength improvement where necessary.
3Strength
If the thickness of the first layer is increased in the display area, then the supporting strength is improved, but the manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by defining specific thickness regions (first thickness in display area, second thickness in non-display area) that can be controlled during manufacturing. This localized approach allows for focused precision control in the critical display area while reducing precision requirements in less critical areas, thereby improving supporting strength without uniformly increasing manufacturing precision requirements across the entire device.
Data Source
AI summary
A display panel and a display device are provided. The display panel includes a display area and a non-display area surrounding the display area; a first substrate and a second substrate disposed opposite to the first substrate; a plurality of supporting pillars disposed between the first substrate and the second substrate and located in the display area; and an adhesive layer disposed between the first substrate and the second substrate and located in the non-display area. The second substrate includes a plurality of film layers, the plurality of film layers include a polarizer and at least one first layer, and a thickness of a portion of the at least one first layer located in the display area is greater than a thickness of a portion of the at least one first layer located in the non-display area.