Infrared Detection Through Liquid Crystal Panel Polarizer
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Solution Overview
Problem
There is a growing demand for electronic equipment with enlarged display portions while maintaining space for cameras and other components, as existing designs often require separate areas for display and camera placement, limiting the size of the display area.
Innovation Solution
The integration of a liquid crystal panel with a polarizer and a detection element that allows for the detection of infrared rays, along with a light guide and frame configuration, enables the camera and other components to be placed on the display portion without needing a separate non-display area, thus allowing for an enlarged display while maintaining detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the camera and other components are placed outside the display portion, then the display area can be enlarged, but the frame width of the non-display portion increases and the overall device size increases
Solution Approach 1:
The patent merges the camera and other components with the display portion by providing them on the same substrate. The camera, infrared detector, and other components are integrated into the display structure, eliminating the need for separate non-display areas and reducing the overall frame width while maintaining large display area.
Solution Approach 2:
The display substrate serves multiple functions: it acts as both the display portion and the mounting substrate for the camera and other components. This multi-functional design allows the same area to serve both display and component housing purposes, reducing the need for additional frame space.
2Area of stationary object
If the camera and other components are placed outside the display portion, then the display area can be enlarged, but the overall device size increases
Solution Approach 1:
The patent combines multiple functional components (display, camera, infrared detector) into a single integrated structure on the same substrate. This merging eliminates the need for separate housing spaces for each component, thereby reducing the overall device volume while maintaining large display area.
Solution Approach 2:
The camera and other components are nested within the display structure by placing them on the same substrate. The components are positioned in the same planar space as the display, effectively nesting multiple functions within the same footprint and reducing overall device size.
3Length of stationary object
If the camera and other components are placed on the display portion, then the frame width is reduced, but the detection accuracy of infrared rays may be affected
Solution Approach 1:
The patent applies local quality by providing an infrared-transmissive region with specific properties (high infrared transmittance) at the location of the detection element. This localized optimization ensures that the detection accuracy is maintained despite the integrated structure, as the specific area requires special optical properties while other areas have different requirements.
Solution Approach 2:
The patent changes the optical parameters of specific regions by providing an infrared-transmissive region with high infrared transmittance. This parameter change allows infrared rays to pass through to the detection element without being blocked by the display structure, thereby maintaining detection accuracy in the integrated design.
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 configuration allows for an enlarged display area without reducing the detection accuracy of infrared rays and visible light, while also reducing the frame width of the non-display portion, enhancing the overall design efficiency.
Implementation Method 1
a detection element superposed on the liquid crystal panel and the polarizer to detect infrared rays through the liquid crystal panel and the polarizer
Implementation Method 2
a light guide having a main surface opposed to the liquid crystal panel and an opening corresponding to one of a notch and a through hole
Data Source
AI summary
According to one embodiment, an electronic equipment includes a liquid crystal panel including a display portion, a polarizer superposed on the display portion, and a detection element superposed on the liquid crystal panel and the polarizer to detect infrared rays through the liquid crystal panel and the polarizer.