Display Substrate Common Electrode Light Path Control
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Solution Overview
Problem
Current naked-eye 3D display technologies face challenges in achieving immersive three-dimensional displays without the need for special glasses, as they often require complex light path control mechanisms that increase production costs and complexity.
Innovation Solution
A display substrate design featuring a base substrate with pixel groups and a first shading portion, where the common electrode includes two opaque strips and a second strip between them, combined with a shading portion to direct light for left-eye and right-eye images to the respective eyes, achieving a naked-eye 3D display effect by controlling the light path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If light barrier type 3D display technology uses a barrier to control the light path, then the 3D display effect is achieved, but the production cost and device complexity increase
Solution Approach 1:
The patent extracts the light path control function from separate physical barriers or lenses and integrates it directly into the common electrode structure through patterned opaque strips. The common electrode strips serve dual purposes: electrical function and optical path control, eliminating the need for additional light barrier components.
Solution Approach 2:
The patent merges the light path control function with the common electrode structure. The opaque strips of the common electrode serve both as electrical conductors and as optical barriers to control light paths to different eyes, combining multiple functions into a single integrated component.
2Reliability
If lenticular lenses are used to control the optical path by refraction, then the naked-eye 3D display is achieved, but the production complexity and cost increase
Solution Approach 1:
The patent replaces the mechanical optical system of lenticular lenses with an electrical-optical integrated system. The patterned common electrode strips create optical paths through electrical field control and geometric arrangement, substituting complex mechanical lens assemblies with simpler planar electrode patterns that can be manufactured using standard TFT processes.
3Reliability
If directional light source type 3D display technology controls the light path through a backlight source, then the 3D display is achieved, but the device structure becomes complex
Solution Approach 1:
Instead of controlling light paths from the backlight source side, the patent inverts the approach by controlling light paths from the display panel side using the common electrode structure. The opaque strips on the display panel side direct light to specific eyes, eliminating the need for complex directional backlight mechanisms.
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 reduces production costs and complexity by enabling a cost-effective naked-eye 3D display that is immersive and compatible with existing TFT-LCD production lines, while enhancing light transmittance and viewing angles.
Implementation Method 1
the lenticular lens type 3D display technology uses lenticular lenses to control the optical path by refraction
Implementation Method 2
a side of the two opaque first common electrode strips facing the base substrate is a reflective surface
Data Source
AI summary
A display substrate and a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, a plurality of pixel groups located on the base substrate and a first shading portion located between the plurality of pixel groups and the base substrate. Each of the plurality of pixel groups includes two pixel units, each of the plurality of pixel groups includes two opaque first common electrode strips and a second common electrode strip located between the two opaque first common electrode strips, an orthogonal projection of a space between the two opaque first common electrode strips on the base substrate falls within an orthogonal projection of the first shading portion on the base substrate.