Display Panel Sub-Pixel Switching for Adjustable Privacy Viewing
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Solution Overview
Problem
Existing display technologies lack flexibility in controlling the peep-proof angle, failing to seamlessly switch between sharing and privacy modes.
Innovation Solution
A display panel design with first and second sub-pixels that share a common drive circuit but have different switch circuits, allowing flexible control of light emission through distinct switch control signals, and incorporating light-shielding layers to adjust viewing angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single switch circuit is used for all sub-pixels, then device complexity is reduced, but flexibility in controlling peep-proof angle is lost
Solution Approach 1:
The display panel divides sub-pixels into first sub-pixels and second sub-pixels, each with independent switch circuits. The first sub-pixels have switch circuits controllable by first switch control signals, while second sub-pixels have switch circuits controllable by second switch control signals. This segmentation enables independent control of different sub-pixel groups, allowing flexible adjustment of peep-proof angles without requiring a complete redesign of the entire display system.
2Adaptability or versatility
If separate drive circuits are provided for each sub-pixel, then control flexibility is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
Multiple sub-pixels share common drive circuits. Specifically, multiple first sub-pixels share first drive circuits, and multiple second sub-pixels share second drive circuits. This merging approach reduces the total number of drive circuits required while maintaining control flexibility through the combination of shared drive circuits and independent switch circuits.
Solution Approach 2:
The drive circuits are designed to serve multiple functions by controlling different groups of sub-pixels. The first drive circuits control multiple first sub-pixels, and the second drive circuits control multiple second sub-pixels, allowing a single drive circuit to perform the function of controlling multiple individual sub-pixels through the switch circuit mechanism.
3Adaptability or versatility
If light-shielding layers are added to control viewing angles, then privacy protection is improved, but manufacturing precision requirements increase
Solution Approach 1:
The light-shielding effect is achieved dynamically through electrical control of switch circuits rather than fixed physical light-shielding structures. By controlling the switch circuits with different switch control signals, the display can dynamically adjust which sub-pixels are visible, providing privacy protection on demand without requiring precision-manufactured physical light-shielding layers.
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 flexible peep-proof control, enhancing privacy while maintaining high-resolution display capabilities by separately controlling sub-pixels for sharing and privacy modes.
Implementation Method 1
a plurality of light-shielding layers stacked in a direction away from the base substrate in sequence... an orthographic projection of each of the plurality of light shield portions on the base substrate is overlapped with an orthographic projection of one of the plurality of pixel definition portions defining the plurality of first sub-pixels on the base substrate
Data Source
AI summary
Provided is a display panel. The display panel includes a base substrate, wherein the base substrate includes a plurality of pixel sub-regions, wherein each of the plurality of pixel sub-regions includes a plurality of pixel unit regions; a plurality of first sub-pixels and a plurality of second sub-pixels that are in one-to-one correspondence and have different colors in the plurality of pixel unit regions in the plurality of pixel sub-regions; and a pixel definition layer, an encapsulation layer, and a plurality of light-shielding layers that are stacked on a side of the light-emitting unit layer in the direction away from the base substrate in sequence, wherein the pixel definition layer includes a plurality of openings and a plurality of pixel definition portions surrounding the plurality of openings.