Display Grating Spacing Control via Support Layer
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Solution Overview
Problem
Conventional 2D display apparatuses fail to effectively maintain even spacing between a grating and a 2D display panel, leading to uneven adhesive pressure and autogenous shrinkage, which adversely affects display quality and yield in 3D display technologies like barrier 3D displays.
Innovation Solution
A first supporting layer with identical height first support members is arranged between the 2D display panel and the grating, partially covering the black matrix fringe to maintain even spacing and reduce Moire fringes, while the second supporting layer is optionally used to further improve flatness and reduce 3D crosstalk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If adhesive is used to bond the liquid crystal grating and the 2D display panel, then the two components can be assembled together, but uneven spacing occurs due to uneven adhesive pressure and autogenous shrinkage, adversely affecting display quality and yield
Solution Approach 1:
A supporting layer with support members is introduced as an intermediary component between the liquid crystal grating and the 2D display panel. This supporting layer acts as a mediator that maintains uniform spacing during the adhesive bonding process, preventing the spacing non-uniformity caused by uneven adhesive pressure and autogenous shrinkage.
Solution Approach 2:
The supporting layer is pre-formed with support members that define the desired spacing before the adhesive bonding process begins. This preliminary structure ensures that when the liquid crystal grating and display panel are bonded together, the spacing remains uniform throughout the process, addressing the issue before it can cause defects.
2Manufacturing precision
If a supporting layer with support members is added to maintain even spacing, then manufacturing precision and display quality improve, but device complexity and production cost increase
Solution Approach 1:
The supporting layer is implemented as a thin film structure with integrated support members, rather than a bulky rigid framework. This thin film approach maintains the necessary spacing uniformity while minimizing the increase in device complexity and overall thickness, making the solution more practical for display applications.
Data Source
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AI summary
The present disclosure provides a display apparatus so as to prevent the display quality from being adversely affected due to an uneven spacing between a grating and a 2D display panel in an existing display device. The display apparatus includes a 2D display panel, and a grating arranged above a light-exiting surface of the 2D display panel. A first supporting layer is further arranged between the 2D display panel and the grating, and it includes a plurality of first support members with an identical height. The first support member partially covers a black matrix fringe in the 2D display panel in a direction of the black matrix fringe. According to the present disclosure, the first supporting layer including the first support members with an identical height is arranged between the 2D display panel and the grating, so as to maintain an even spacing between the grating and the 2D display panel. In addition, the first support member partially covers the black matrix fringe in the direction of the black matrix fringe in the 2D display panel, so it is able to reduce Moire fringes.