Integrated Lenticular Array Display Reducing Thickness
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Solution Overview
Problem
Stereoscopic image display devices using lenticular lenses face increased overall thickness due to the spacing of lenticular lenses and 2D image panels, and non-uniform liquid crystal layers result from the semi-cylinder shape, affecting image quality.
Innovation Solution
A display device structure with a middle layer including a lenticular array and a control electrode, sandwiched between two substrates with liquid crystal layers, allowing for both 2D and 3D image modes by controlling the electric field and liquid crystal alignment, reducing the need for additional substrates and ensuring uniform liquid crystal thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If lenticular lenses are spaced apart from 2D image panels by a predetermined distance, then 3D image display is achieved, but the overall thickness of the display device increases
Solution Approach 1:
The patent combines the lenticular lens array and the 2D image panel into a single integrated structure where the lenticular lens array is formed on the same substrate as the 2D image panel, eliminating the need for spacing and reducing overall thickness while maintaining 3D display capability
Solution Approach 2:
The patent transitions from a spaced-apart configuration (3D arrangement) to an integrated planar configuration (2D arrangement), where the lenticular lens array and image panel coexist on the same substrate plane, thereby reducing the thickness dimension
2Adaptability or versatility
If lenticular lenses are spaced apart from the 2D image panel, then 3D separation is achieved, but misalignment between components occurs
Solution Approach 1:
By integrating the lenticular lens array and 2D image panel onto the same substrate, the patent eliminates relative positioning errors and ensures precise alignment between the lens array and image elements, as both are formed on the same planar surface
3Adaptability or versatility
If a semi-cylinder shaped lenticular lens is used, then 3D image separation is achieved, but the liquid crystal layer becomes non-uniform
Solution Approach 1:
The patent transitions from using semi-cylinder shaped lenticular lenses (3D protruding structure) to a planar lenticular lens array (2D flat structure) formed on the same substrate as the 2D image panel, ensuring uniform liquid crystal layer thickness across the entire display area
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
The solution reduces the total thickness of the display device, prevents misalignment, and maintains image quality by enabling efficient conversion between 2D and 3D modes without additional substrates and ensuring uniform liquid crystal layers.
Implementation Method 1
a control electrode on the lenticular array... a first common electrode on the first substrate and facing the control electrode... a second common electrode on the second side of the middle layer
Implementation Method 2
a first liquid crystal layer between the middle layer and the first substrate... a second liquid crystal layer between the second common electrode and the pixel part
Data Source
AI summary
A display device includes a first substrate, a middle layer, a first liquid crystal layer, a second substrate, a pixel part and a second liquid crystal layer. A first common electrode is on the first substrate. The middle layer includes a lenticular array, and a control electrode on the lenticular array. The control electrode faces the first common electrode. The first liquid crystal layer is between the middle layer and the first substrate, and a second common electrode is on a back side of the middle layer. The pixel part includes a plurality of pixel electrodes on the second substrate and facing the second common electrode. The second liquid crystal layer is between the second common electrode and the pixel part.