Switchable 3D Display Parallax Barrier Touch Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional switchable 3D displays with integrated touch-sensing and parallax barriers have complex assembly processes, high manufacturing costs, and increased thickness due to separate fabrication and electrical connections of these components.
Innovation Solution
Integration of a touch-sensing circuit into a switchable parallax barrier, comprising substrates, an insulating layer, a common electrode, and a light-valve layer, which simplifies assembly and reduces thickness by eliminating the need for separate touch-sensing and parallax barrier components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the switchable parallax barrier and touch-sensing panel are individually fabricated and adhered to the display panel, then each component can be optimized independently, but the assembly becomes complicated and time-consuming, increasing manufacturing costs and thickness
Solution Approach 1:
The patent merges the switchable parallax barrier and touch-sensing panel into a single integrated structure. The parallax barrier substrate serves as the touch-sensing substrate, with control electrodes and touch-sensing circuits formed on the same substrate. This integration eliminates the need for separate fabrication and assembly of two distinct components, thereby simplifying the assembly process, reducing manufacturing complexity, and decreasing the overall thickness of the display device.
Solution Approach 2:
The substrate in the integrated structure serves multiple functions simultaneously: it acts as both the parallax barrier substrate and the touch-sensing substrate. The control electrodes and touch-sensing circuits share the same substrate and are electrically connected through the same flexible printed circuit, enabling the single component to fulfill both parallax barrier and touch-sensing functions.
2Manufacturing precision
If the switchable parallax barrier and touch-sensing panel are individually fabricated and adhered to the display panel, then each component can be optimized independently, but the entire thickness of the display cannot be effectively reduced
Solution Approach 1:
By combining the parallax barrier and touch-sensing panel into a single integrated component, the patent eliminates the thickness contribution from separate substrates, adhesive layers, and air gaps that would exist in a stacked configuration. The integrated structure reduces the overall thickness of the display device while maintaining the functional performance of both the parallax barrier and touch-sensing capabilities.
3Reliability
If two flexible printed circuits are used to electrically connect the switchable parallax barrier and touch-sensing panel to the control circuit board, then electrical connections are established, but the assembly process becomes more complex and time-consuming
Solution Approach 1:
The patent merges the electrical connection paths by using a single flexible printed circuit to connect both the control electrodes and touch-sensing circuits to the control circuit board. This integration reduces the number of separate electrical connections from two to one, thereby simplifying the assembly process, increasing assembly speed, and improving manufacturing productivity while maintaining reliable electrical connections.
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 integration facilitates mass production, reduces the overall thickness and weight of the 3D display, and streamlines the manufacturing process, thereby lowering costs and enhancing production efficiency.
Implementation Method 1
The light-valve layer is configured between the common electrode and the control electrodes
Implementation Method 2
The insulating layer is configured over the first substrate and covers the touch-sensing circuit
Data Source
AI summary
A switchable three-dimensional display includes a display panel and a switchable parallax barrier. The switchable parallax barrier is configured over the display panel and includes a first substrate, a second substrate, an insulating layer, a common electrode, and a light-valve layer. The first substrate has a touch-sensing circuit. The second substrate has a plurality of control electrodes and is configured between the first substrate and the display panel. The touch-sensing circuit and the control electrodes are located between the first substrate and the second substrate. The insulating layer is configured over the first substrate and covers the touch-sensing circuit. The common electrode is configured on the insulating layer. The light-valve layer is configured between the common electrode and the control electrodes.