Dual Display Panel Backlight Integration for Driver Distraction Reduction
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Solution Overview
Problem
Conventional vehicular center informative displays with out-cell touch panels are inconvenient and distracting for drivers due to their multitude of touch functions, necessitating a solution to reduce operational complexity and minimize driver distraction.
Innovation Solution
A display device integrating a first display panel with a backlight module and a second display panel, where the second panel is coupled to an operating structure to provide feedback information, with polarizers having specific projections and overlap areas to minimize distraction, allowing both panels to share a backlight while maintaining display quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional vehicular CID is equipped with an out-cell touch panel with multiple touch functions, then the control functions are comprehensive, but the driver finds it inconvenient to operate and it causes distraction
Solution Approach 1:
The display device is divided into two separate display panels: a first display panel for primary information display and a second display panel for feedback information. This segmentation allows each panel to have specialized functions, reducing the complexity of operation for the driver while maintaining comprehensive control capabilities.
Solution Approach 2:
The second display panel acts as an intermediary that provides feedback information to the driver about touch panel operations. This intermediary feedback mechanism helps the driver understand system responses without needing to directly interact with complex touch functions, thereby reducing distraction.
2Device complexity
If two display panels are disposed on a shared backlight module, then the structure is integrated and space is saved, but the polarizer overlap may affect display quality
Solution Approach 1:
The patent specifies that the overlap area between the first polarizer and second polarizer projections should be 10% or less of the second projection area. This local quality control ensures that the polarizer overlap does not significantly affect display quality while maintaining the integrated backlight structure.
Solution Approach 2:
By controlling the overlap area parameter between polarizers to be 10% or less, the patent optimizes the balance between structural integration and display quality. This parameter change allows the shared backlight module to function effectively without compromising the optical performance of either display panel.
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 integrated display device reduces driver distraction by providing essential feedback through the second display panel, simplifying operations and maintaining effective use of the backlight, thus enhancing user experience and safety.
Implementation Method 1
a first display panel disposed on the backlight module and comprising a first polarizer; and a second display panel disposed on the backlight module and comprising a second polarizer, wherein the first polarizer has a first projection, the second polarizer has a second projection, and an area of an overlap between the first projection and the second projection accounts for 10% or less of an area of the second projection
Data Source
AI summary
Provided is a display device including: a backlight module; a first display panel disposed on the backlight module and including a first polarizer; and a second display panel disposed on the backlight module and including a second polarizer, wherein the first polarizer has a first projection, the second polarizer has a second projection, and an area of an overlap between the first projection and the second projection accounts for 10% or less of an area of the second projection, wherein the first display panel comprises a non-display area, and the second display panel corresponds in position to the non-display area.