Jointed LCD Panels with Single Polarizer for Anti-Peeking
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Solution Overview
Problem
Liquid crystal display panels without an upper polarizer allow information to be visible from certain inclination angles, compromising the anti-peeking function, as existing designs fail to effectively utilize this property for special display functions.
Innovation Solution
A display system comprising multiple liquid crystal display panels jointed at obtuse angles, where each panel has a polarizer only at the entering side, allowing content visibility from a wide range of angles without an upper polarizer, enhancing the anti-peeking functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an upper polarizer is removed from the liquid crystal display panel, then the anti-peeking function is improved, but the visibility from certain inclination angles increases (compromising the anti-peeking function)
Solution Approach 1:
The display system is segmented into multiple independent liquid crystal display panels, each with its own polarization configuration. By dividing the display into separate panels rather than using a single panel with both polarizers, the system achieves anti-peeking functionality without requiring an upper polarizer on each panel, thus maintaining versatility while reducing the harmful effect of visibility from inclination angles.
Solution Approach 2:
The patent introduces a specialized viewing device (intermediary) that integrates a lower polarizer and upper polarizer in a specific configuration. This intermediary device acts as a mediator between the display panels and the viewer's eyes, enabling the anti-peeking function to work effectively without requiring an upper polarizer on the display panels themselves, thus resolving the contradiction between anti-peeking versatility and visibility control.
2Area of moving object
If multiple liquid crystal display panels are jointed at obtuse angles, then the visible angle range is expanded, but the structural complexity increases
Solution Approach 1:
The patent transitions from a single-plane display arrangement to a multi-dimensional spatial configuration by jointing panels at obtuse angles in three-dimensional space. This dimensional change expands the visible angle range by utilizing spatial arrangement rather than simply increasing panel area on a single plane, achieving the goal while managing structural complexity through geometric optimization.
Solution Approach 2:
The display system employs asymmetric jointing angles (obtuse angles rather than standard 90-degree configurations) to optimize the visible angle range. This asymmetric arrangement allows light to reach viewers from a broader range of directions, expanding visibility while the specific angular configuration helps manage structural complexity by creating an optimized geometric layout rather than a symmetric grid.
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
Enables content visibility from a broad range of angles, improving viewer comfort and usability in special applications like narrow passageways, while maintaining the anti-peeking function by strategically arranging joint angles between panels.
Implementation Method 1
Only a polarized light having a polarization direction which is consistent with a direction of a light transmitting axis of the lower polarizer can pass through the lower polarizer
Implementation Method 2
after being modulated by liquid crystal molecules, a polarized light having a polarization direction which is consistent with a direction of a light transmitting axis of the upper polarizer can be transmitted out
Implementation Method 3
as shown in FIG. 2, region a and region b are in bright and dark states respectively... when a light from a backlight source... is polarized through the first polarizer... and then transmitted through the liquid crystal display panel
Data Source
AI summary
The present invention discloses a display system, comprising at least one jointed screen which is composed of a plurality of liquid crystal display panels jointed with each other, in which, each liquid crystal display panel is provided with a first polarizer only at a light entering side thereof, so that a visible angle at which contents displayed by the liquid crystal display panel can be seen from a light exiting side thereof is an obtuse angle; two adjacent jointed liquid crystal display panels are jointed with each other at their adjacent sides, and a joint angle formed at the light exiting side is greater than a right angle, such that the light exiting side of each display panel is located in a region covered by an angle range of the visible angle of at least one display panels other than said display panel.