Lens Grating Integration for Short-Distance Stereoscopic Viewing
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Solution Overview
Problem
Existing stereoscopic display technologies, such as liquid crystal lens type stereoscopic display apparatuses, have a non-adjustable grating pitch that limits the viewing distance and adaptability, making it difficult to view display contents at short distances due to the increased placement height between the color filter and the liquid crystal lens.
Innovation Solution
A display panel design where the lens grating is integrated between the first substrate assembly and the polarizing filter, sharing a substrate with the display panel, allowing for a reduced distance between the color filter layer and the lens grating, typically within 0.1-0.25 mm, enabling viewing at shorter distances.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the liquid crystal lens structure and display device are separated and bonded through an adhesive layer, then the stereoscopic display apparatus can be assembled, but the placement height from the color filter to the liquid crystal lens is increased, making short-distance viewing无法满足
Solution Approach 1:
The patent merges the liquid crystal lens structure with the display device by integrating the lens into the color filter substrate. The color filter substrate itself serves as the lower glass substrate of the liquid crystal lens, eliminating the need for separate bonding through adhesive layers. This integration directly reduces the placement height from the color filter to the liquid crystal lens, enabling short-distance viewing while maintaining assembly feasibility.
2Ease of manufacture
If a grating pitch of ordinary grating is used, then the manufacturing is simple, but the grating pitch is non-adjustable, limiting the viewer to view only within a certain distance range
Solution Approach 1:
The patent employs a liquid crystal lens that can dynamically adjust its focal length and grating pitch by applying different voltages. This dynamic capability allows the viewing distance range to be adjusted according to different viewing conditions, while the base structure maintains manufacturing simplicity similar to ordinary gratings. The liquid crystal material enables real-time reconfiguration without complex manufacturing changes.
Solution Approach 2:
The patent changes the physical parameters of the grating by using liquid crystal material whose refractive index and optical properties can be modified through voltage application. By changing the voltage parameter, the grating pitch and focal length are adjusted, enabling the system to adapt to different viewing distances while maintaining a simple underlying structure that is easy to manufacture.
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 allows for improved adaptability and reduced viewing distance, satisfying the requirement for stereoscopic display content viewing at short distances by minimizing the placement height between the color filter and the lens grating, enhancing the usability of stereoscopic displays in daily life.
Implementation Method 1
a lens liquid crystal layer disposed between the light output side of the first substrate assembly and the light input side of the third substrate assembly, wherein an electric field between the first electrode and the second electrode is adapted to deflect a liquid crystal in the lens liquid crystal layer
Implementation Method 2
an electric field between the first electrode and the second electrode is adapted to deflect a liquid crystal in the lens liquid crystal layer
Implementation Method 3
to provide left and right eyes of a viewer with two different pictures, respectively, and form a depth of field by parallax effect of the pictures for the left and right eyes of the viewer
Data Source
AI summary
A display panel, a method of manufacturing the display panel, and a display apparatus are provided in the embodiments of the present invention. The display panel comprises a first substrate assembly and a second substrate assembly, and a first polarizing filter and a second polarizing filter. The first substrate assembly and the first polarizing filter are located on a light output side. A lens grating is disposed between the first polarizing filter and the first substrate assembly of the display panel, and a substrate of the first substrate assembly serves as a substrate of the lens grating.