Display Panel Non-Display Region Reflection Structures
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Solution Overview
Problem
Existing display panels exhibit a significant color difference between the display region and the frame region when the screen is off, due to differences in material and pattern, leading to an uneven black state and affected user experience.
Innovation Solution
Incorporating first reflection structures and openings in the non-display region of the display panel, where the reflection structures overlap with the openings, to enhance reflectivity and reduce the color difference by reflecting external light and blocking display light leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the frame region is covered by a light-blocking layer to shield metal lines, then light reflection is prevented, but the color uniformity between display region and frame region deteriorates
Solution Approach 1:
The patent applies local quality by differentiating the treatment between display region and frame region. In the frame region, instead of using a solid light-blocking layer, the invention uses a patterned structure with light-blocking portions and light transmission portions. This local differentiation allows the frame region to have both light reflection prevention (where needed) and light transmission (to maintain color uniformity with display region), resolving the contradiction between shielding metal lines and maintaining color consistency.
2Reliability
If different materials and patterns are used in display region and frame region, then metal lines are shielded, but the visual appearance deteriorates due to obvious color difference
Solution Approach 1:
The patent converts the harmful effect of metal lines (causing light reflection and color difference) into a beneficial structure. By creating a patterned light-blocking layer with alternating light-blocking and light transmission portions, the metal lines are still shielded (preventing their harmful reflection) while the light transmission portions allow the frame region to appear visually consistent with the display region, effectively converting the shielding requirement into a design feature that maintains aesthetics.
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
This solution improves the uniformity of the black state in the screen-off state and enhances user experience by minimizing the reflectivity difference between the display and non-display regions, while preventing light leakage during the display process.
Implementation Method 1
first reflection structures in the non-display region... reflecting external light
Implementation Method 2
light-blocking layer... blocking display light leakage
Data Source
AI summary
A display panel and a display device are provided. The display panel includes: a display region and a non-display region at least partially surrounding the display region; a first base plate and a second base plate opposite to each other; and first reflection structures in the non-display region. The first base plate includes a first substrate. The second base plate includes a light-blocking layer. In the non-display region, the light-blocking layer includes at least one first opening. Along a first direction, the at least one first opening penetrates through the light-blocking layer. The first direction is a thickness direction of the display panel. Along the first direction, a projection of a first reflection structure overlaps a projection of a corresponding first opening of the at least one first opening.