Liquid Crystal Panel Protrusion Layout for 3D White Uniformity
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Solution Overview
Problem
Existing three-dimensional display devices using liquid crystal panels experience white unevenness in the display region near the frame region due to differences in cell thickness, which is not addressed by existing techniques.
Innovation Solution
A liquid crystal panel design featuring a first substrate with a first substrate-side insulating protrusion and a second substrate with a protrusion, both protruding into the liquid crystal layer, and configured to maintain equal cell thickness across the display region and frame region, using insulating and conductive layers to support the substrates and ensure uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a liquid crystal panel is used as an active retarder in a three-dimensional display device, then the images for the left eye and right eye can be separated and visually recognized by using polarized glasses, but white unevenness occurs in the display region near the frame region
Solution Approach 1:
The patent applies local quality by providing a frame structure with different configurations in different regions: the first frame portion in the display region has a first cross-sectional shape, while the second frame portion in the non-display region has a second cross-sectional shape that is different from the first. This local differentiation allows the frame to maintain uniform cell thickness in the display region while providing structural support in the non-display region, thereby eliminating white unevenness without compromising the three-dimensional display function.
2Ease of manufacture
If the frame region structure is simplified, then manufacturing becomes easier, but cell thickness uniformity between display and frame regions cannot be maintained
Solution Approach 1:
The patent segments the frame structure into at least two distinct portions: a first frame portion located in the display region and a second frame portion located in the non-display region. Each portion can have different cross-sectional shapes optimized for its specific function. This segmentation allows independent optimization of each region, maintaining cell thickness uniformity in the display region while simplifying manufacturing in the non-display region, thus resolving the contradiction between ease of manufacture and manufacturing precision.
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 design effectively curbs white unevenness in the display region near the frame region by maintaining consistent cell thickness, enhancing display quality and reducing visual imperfections.
Implementation Method 1
The liquid crystal panel on the observation face side is a liquid crystal panel in which an electrically controlled birefringence (ECB) mode liquid crystal layer is interposed between a pair of substrates
Data Source
AI summary
A liquid crystal panel includes a display region, a frame region disposed around the display region, a first substrate, and a second substrate disposed facing the first substrate, in which a liquid crystal layer is disposed between the first substrate and the second substrate in the display region, a sealing portion is disposed between the first substrate and the second substrate in the frame region, the second substrate is provided with a protrusion protruding toward the liquid crystal layer side, and the first substrate includes a first support substrate and a first substrate-side insulating protrusion in order toward the liquid crystal layer side, the first substrate-side insulating protrusion being in contact with the first support substrate, protruding toward the liquid crystal layer side, facing the protrusion, and being formed in an island shape.