Display Panel Sub-Pixel Segmentation for Anti-Peep Without Thickness Increase
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Solution Overview
Problem
Existing display panels face challenges in implementing an anti-peep function without increasing thickness, which affects user experience, as current solutions like external films or liquid crystal layers complicate the structure and add thickness.
Innovation Solution
A display panel with a base substrate and a display structure layer featuring sub-pixels with a pixel circuit and light emitting elements, where the light emitting region is divided into two isolated units, allowing for light emitting control to achieve anti-peep and sharing display modes without thickness increase, using shielding layers, color filters, and light adjustment layers to manage light emission angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If external films or liquid crystal layers are added to achieve anti-peep function, then anti-peep capability is improved, but device thickness increases
Solution Approach 1:
The light emitting element is divided into two separate light emitting units (first and second light emitting units) within the same sub-pixel. This segmentation allows independent control of each unit's light emission, enabling anti-peep mode by activating only the first light emitting unit while keeping the second unit inactive, thus achieving privacy protection without adding external layers that would increase thickness.
2Object-affected harmful factors
If light emitting element is divided into two isolated units, then anti-peep control is improved, but device complexity increases
Solution Approach 1:
Both the first and second light emitting units share common structural components including the same emission layer, electrode structures, and encapsulation layers. This merging approach reduces the overall complexity compared to having completely separate light emitting elements, as the shared components are manufactured in a single process sequence, simplifying the device structure while still enabling independent control through separate electrode connections.
Data Source
AI summary
A display panel includes a base substrate and a display structure layer disposed on the base substrate, wherein the display structure layer includes a plurality of sub-pixels. At least one sub-pixel includes: a pixel circuit and a light emitting element electrically connected with the pixel circuit. The light emitting element includes a first light emitting unit and a second light emitting unit. A light emitting region of the first light emitting unit and a light emitting region of the second light emitting unit are isolated from each other. The pixel circuit is configured to drive at least one of the first light emitting unit and the second light emitting unit to emit light in the anti-peep display mode.