Display Panel Baffle Wall Structure for Light Crosstalk Reduction
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Solution Overview
Problem
Mutual crosstalk among light emitted by adjacent light-emitting elements in display panels affects the display effect.
Innovation Solution
A display panel design featuring baffle wall structures around light-emitting elements and first auxiliary structures between the elements and the substrate, raising the height of the elements to reduce crosstalk by maintaining a controlled gap distance, and using reflective structures to direct light away from adjacent elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If baffle wall structures are added around light-emitting elements, then mutual crosstalk is reduced, but device complexity increases
Solution Approach 1:
The display panel is segmented into independent light-emitting units by introducing baffle wall structures between adjacent light-emitting elements. These baffles physically divide the light paths, preventing light from one element from interfering with adjacent elements, thus reducing mutual crosstalk while maintaining a modular structure.
Solution Approach 2:
Baffle wall structures serve as intermediary elements positioned between adjacent light-emitting elements. These intermediaries block and redirect light paths, preventing direct light interference between neighboring elements. The baffles act as mediators that control light propagation without requiring fundamental changes to the light-emitting elements themselves.
2Object-affected harmful factors
If first auxiliary structures are added to raise light-emitting elements, then crosstalk through gaps is reduced, but device complexity increases
Solution Approach 1:
The first auxiliary structures elevate light-emitting elements from the substrate plane to a higher dimension. By raising the light-emitting elements vertically, the design creates additional spatial separation between the light sources and the substrate plane, effectively reducing crosstalk through gaps while utilizing the third dimension for structural optimization.
Solution Approach 2:
The first auxiliary structures are pre-configured to raise light-emitting elements before light emission occurs. This preliminary structural arrangement ensures that light-emitting elements are positioned at optimal heights to prevent crosstalk through gaps, establishing the correct spatial configuration in advance rather than requiring dynamic adjustment during operation.
3Illumination intensity
If baffle wall structures are introduced, then light direction is controlled, but light utilization may be affected
Solution Approach 1:
The baffle wall structures are designed with specific geometric parameters including height, width, and spacing that are optimized to control light direction while minimizing light loss. By adjusting these parameters, the design achieves effective light path control to prevent crosstalk while maintaining high light utilization efficiency through precise dimensional optimization.
Solution Approach 2:
The baffle wall structures implement local quality control by positioning light-blocking and light-redistributing features only where needed between adjacent light-emitting elements. Rather than uniformly blocking all light, the baffles are strategically designed to redirect light locally, ensuring that light is controlled in critical areas while preserving light output in desired directions.
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
Reduces mutual crosstalk among light-emitting elements, improving display quality and maintaining resolution without affecting touch performance or light utilization.
Implementation Method 1
each baffle wall structure of the plurality of the baffle wall structures is located between adjacent ones of the plurality of light-emitting elements
Implementation Method 2
Heights of the light-emitting elements are raised by the first auxiliary structures so that the light-emitting elements are far away from the gaps between lower surfaces of the baffle wall structures and the first substrate
Data Source
AI summary
A display panel includes a first substrate, a second substrate, a plurality of light-emitting elements, a plurality of baffle wall structures, and a plurality of first auxiliary structures. The plurality of light-emitting elements and the plurality of baffle wall structures are located between the first substrate and the second substrate. The plurality of light-emitting elements are disposed on the first substrate, the plurality of baffle wall structures are disposed on the second substrate, and a baffle wall structure is located between adjacent light-emitting elements. The plurality of first auxiliary structures are disposed between at least a part of the plurality of light-emitting elements and the first substrate. The first auxiliary structures and gaps are alternated in a direction which is parallel to the first substrate, and the gap is a space between the baffle wall structure and the first substrate.