Liquid Crystal Lens Panel Spacer Opening for Texture Artifact Suppression
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Solution Overview
Problem
Conventional display devices require glasses for stereoscopic image display, and liquid crystal lenses suffer from texture artifacts due to spacers, limiting their performance and flexibility in switching between 2D and 3D modes.
Innovation Solution
A liquid crystal lens panel with a lower substrate, upper substrate, and a liquid crystal layer, featuring a lower lens electrode with branch electrodes and an upper lens electrode with openings that partially overlap spacers, allowing for voltage control and eliminating texture artifacts by forming an opening in the upper lens electrode to correspond to the spacer position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a liquid crystal lens uses spacers to maintain structural integrity between substrates, then mechanical stability is improved, but texture artifacts are generated that degrade image quality
Solution Approach 1:
The patent extracts the harmful effect of spacers by creating openings in the upper lens electrode that correspond to the spacer positions. This removes the electric field in spacer regions, preventing the texture artifacts caused by distorted liquid crystal alignment, while maintaining spacers for structural support.
Solution Approach 2:
The patent applies local quality by creating specific openings only in regions where spacers are located, rather than removing spacers entirely or creating a uniform structure. This localized modification allows the electrode to maintain its lens-forming electric field in most regions while eliminating the harmful electric field concentration at spacer locations.
2Adaptability or versatility
If a liquid crystal lens panel switches between 2D and 3D modes, then versatility is improved, but response time and mode switching performance are affected
Solution Approach 1:
The patent implements dynamic control by applying different voltage patterns to the lower lens electrode for 2D and 3D modes. In 2D mode, a uniform voltage creates a planar liquid crystal alignment, while in 3D mode, differentiated voltages create the lens effect. This dynamic voltage control enables fast mode switching without mechanical movement.
Solution Approach 2:
The liquid crystal lens panel serves multiple functions by integrating both 2D display and 3D stereoscopic display capabilities in a single device. The same liquid crystal layer and electrode structure are used for both modes, eliminating the need for separate display systems and enabling rapid mode switching.
3Adaptability or versatility
If conventional liquid crystal lenses are used for 3D display, then stereoscopic image capability is improved, but glasses are required which reduces ease of operation
Solution Approach 1:
The patent replaces the mechanical/optical system of polarizing filters and beam splitters (required in traditional glasses-based 3D displays) with an electrically controlled liquid crystal lens system. By dynamically adjusting the liquid crystal orientation through electrode voltages, the system directs light to create stereoscopic images without requiring polarizing glasses.
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
Enables the display of both 2D and 3D images without glasses and suppresses texture generation, maintaining lens performance by preventing electric field formation in regions corresponding to spacers, thus allowing for flexible operation between 2D and 3D modes.
Implementation Method 1
A liquid crystal lens includes an upper substrate, a lower substrate, and a thick liquid crystal layer between the upper substrate and the lower substrate. A liquid crystal lens includes a plurality of electrodes, and each electrode is supplied with a different voltage to control the liquid crystal directors.
Implementation Method 2
an opening disposed in a portion of the upper lens electrode which corresponds to the spacer. The opening of the upper lens electrode partially overlaps the spacer. No electric field can be generated in a region of the liquid crystal layer that corresponds to the opening.
Data Source
AI summary
A display device includes a liquid crystal lens panel that includes a lower substrate, a upper substrate that faces the lower substrate, a lower lens electrode disposed on the lower substrate, an upper lens electrode disposed on the upper substrate, a liquid crystal layer and a spacer disposed between the lower substrate and the upper substrate, and an opening formed at a portion of the upper lens electrode which corresponds to the spacer, where the opening of the upper lens electrode and the spacer partially overlap.