Display Panel Pixel Layout for Selective Viewing Angle Privacy
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Solution Overview
Problem
Existing display devices lack the ability to independently control the viewing angle of individual pixels, leading to issues with privacy protection and inefficient power consumption when displaying both private and shared content simultaneously.
Innovation Solution
A display panel with separate drivers and mode selectors for each pixel, allowing independent control of viewing angles and privacy settings through the use of wide and narrow viewing angle lenses, enabling separation of personal and shared content.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single viewing angle is used for all pixels, then the device complexity is low, but the privacy protection capability is insufficient
Solution Approach 1:
Each pixel is divided into multiple sub-pixels (first sub-pixel and second sub-pixel), with each sub-pixel having its own driver and light-emitting element. This segmentation enables independent control of viewing angles for different content types within the same pixel, achieving privacy protection without requiring complete redesign of the display structure.
Solution Approach 2:
The viewing angle of each pixel is made dynamically adjustable through the mode selector, which can switch between wide viewing angle mode and narrow viewing angle mode based on the content being displayed. This dynamic control allows the display to adapt to different usage scenarios, enhancing privacy protection when needed while maintaining normal functionality otherwise.
2Reliability
If separate drivers are provided for each pixel to enable independent viewing angle control, then the privacy protection function is enhanced, but the device complexity increases
Solution Approach 1:
The driver circuit is segmented into first driver and second driver, each controlling specific sub-pixels with distinct viewing angle characteristics. This segmentation allows independent control of private and shared content, enabling privacy protection functionality while maintaining manageable circuit complexity through functional division.
Solution Approach 2:
The mode selector serves multiple functions: it selects between wide and narrow viewing angle modes, controls the switching between different light-emitting elements, and manages the operation of different drivers. This multi-functionality reduces the need for separate dedicated circuits for each function, thereby controlling overall device complexity while achieving enhanced privacy protection.
3Ease of operation
If wide viewing angle lenses are used for all pixels, then the shared content visibility is improved, but the private content privacy protection is compromised
Solution Approach 1:
Different sub-pixels within the same pixel are assigned different optical properties: the first sub-pixel uses a wide viewing angle lens for shared content visibility, while the second sub-pixel uses a narrow viewing angle lens for private content privacy protection. This local differentiation of optical quality allows simultaneous achievement of both wide visibility for shared content and narrow visibility for private content.
Solution Approach 2:
The pixel is segmented into first sub-pixel and second sub-pixel, each with its own light-emitting element and lens configuration. This segmentation enables the display to show different content with different viewing angle characteristics from the same physical location, allowing shared content to be visible to multiple users while private content remains visible only to the intended user.
4Reliability
If narrow viewing angle lenses are used for all pixels, then the private content privacy protection is improved, but the shared content visibility is reduced
Solution Approach 1:
The second sub-pixel is equipped with a narrow viewing angle lens to provide privacy protection for private content, while the first sub-pixel maintains a wide viewing angle lens for shared content visibility. This local quality differentiation ensures that privacy protection is applied only where needed without compromising the visibility of shared content to multiple users.
Solution Approach 2:
The mode selector enables dynamic switching between wide and narrow viewing angle modes for different sub-pixels based on the content type being displayed. When private content is displayed, the narrow viewing angle mode is activated for the second sub-pixel; when shared content is displayed, the wide viewing angle mode is activated for the first sub-pixel. This dynamic adaptation optimizes both privacy protection and shared content visibility as needed.
Data Source
AI summary
The present disclosure relates to a display panel and a display device including the same. The sub-pixel arranged in the display panel includes a first light-emitting element; a second light-emitting element; a first driver connected to a first data line to which a first data voltage is applied and gate lines to which gate signals are applied; a second driver connected to a second data line to which a second data voltage is applied and the gate lines to which the gate signals are applied; a mode selector connected to the first driver, the second driver, the first light-emitting element, the second light-emitting element, and mode selection lines to which mode selection signals are applied.