Light Field Display Substrate with Segmented Light Emitting Points
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Solution Overview
Problem
Conventional display technologies, such as OLEDs, face limitations in reducing sub-pixel unit sizes due to the presence of thin film transistors and capacitors, which restricts pixel density and light field display effectiveness.
Innovation Solution
A display substrate with a light emitting block comprising multiple first and second light emitting units, each with predetermined light emitting points connected to driving leads, allowing for improved light emitting point density and arrangement to enhance light field display, including a light angle adjustment structure using micro-lenses for directional light deflection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional OLED sub-pixel units are used with thin film transistors and capacitors, then the display can be manufactured with current process capabilities, but the pixel density cannot be improved due to large pixel sizes
Solution Approach 1:
Each light emitting unit is divided into multiple light emitting points (e.g., four light emitting points per unit), allowing the display to generate more light beams within the same pixel area. This segmentation enables higher pixel density without requiring smaller physical pixels, as each pixel unit now contains multiple functional light emission points that can be independently controlled.
2Illumination intensity
If more light beams are provided for better light field display, then the light field display effect is improved, but the number of sub-pixel units must be increased which increases device complexity
Solution Approach 1:
Multiple light emitting points are merged within a single light emitting unit, which is controlled by a single driving lead. This merging approach allows multiple light beams to be generated from one logical pixel unit, improving the light field display effect without proportionally increasing the number of driving leads and control circuits, thus avoiding linear growth in device complexity.
Solution Approach 2:
The patent introduces a spatial dimension by arranging multiple light emitting points in different positions within each light emitting unit (e.g., different corners or positions). This dimensional arrangement allows the same pixel unit to emit light in multiple directions and positions, effectively increasing the number of light beams without adding more pixel units, thereby improving light field display capability while maintaining compact device structure.
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 configuration significantly increases the number of light emitting points and beams, achieving a better light field display effect while maintaining resolution and efficiency.
Implementation Method 1
a light angle adjustment structure located on a light emitting side of the display substrate and configured to deflect light emitted from the first light emitting points electrically connected to a same first driving lead to different directions
Data Source
AI summary
The embodiments of the present application provide a display substrate, a light field display apparatus, and a method for driving the same. The display substrate includes: a base substrate; a light emitting block on the base substrate, wherein the light emitting block includes a plurality of first light emitting units, and each of the first light emitting units includes a plurality of first light emitting points which are located at a plurality of predetermined positions in the first light emitting unit respectively; and first driving leads each electrically connected to first light emitting points located at the same predetermined positions in the respective first light emitting units and configured to receive a first driving signal from a driving circuit.