Pixel Electrode Bridge Layout for High-Resolution Light Output
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Solution Overview
Problem
Existing display technologies face challenges in increasing light output efficiency and achieving high resolution without increasing the number of alignment electrodes.
Innovation Solution
The introduction of an intermediate electrode (bridge electrode) between successive series stages in a pixel design, which connects contact electrodes across areas covered by an insulating layer, forming a series/parallel mixed structure without additional alignment electrodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If multiple series stages are formed without intermediate electrodes, then device complexity is reduced, but light output efficiency deteriorates
Solution Approach 1:
An insulating layer is introduced as an intermediary element between the first and second series stages. This insulating layer includes first and second openings that enable electrical connection between contact electrodes while providing isolation. The intermediary insulating layer resolves the contradiction by maintaining necessary electrical connections without requiring additional alignment electrodes, thus preserving device complexity while improving light output efficiency through optimized electrode arrangement.
2Use of energy by moving object
If alignment electrodes are increased to form multiple series stages, then light output efficiency is improved, but device complexity increases
Solution Approach 1:
The insulating layer serves multiple functions simultaneously: it provides electrical isolation between series stages, creates defined opening patterns for electrode connection, and structurally organizes the multi-stage configuration. This multi-functionality allows the system to achieve improved light output efficiency through proper series stage formation without increasing the number of alignment electrodes, as the insulating layer's opening structure replaces the need for additional alignment electrodes.
Data Source
AI summary
According to an embodiment, a pixel may include a first area and a second area partitioned in a first direction, (1-1)-th and (2-1)-th electrodes disposed in the first area and spaced apart in a second direction different from the first direction, (1-2)-th and (2-2)-th electrodes disposed in the second area and spaced apart in the second direction, light emitting elements disposed between the (1-1)-th and (2-1)-th electrodes and between the (1-2)-th and (2-2)-th electrodes, a contact electrode disposed on the (1-1)-th and (2-1)-th electrodes and the (1-2)-th and (2-2)-th electrodes, an insulating layer disposed between each of the (1-1)-th and (2-1)-th electrodes and the (1-2)-th and (2-2)-th electrodes, and the contact electrode, and including a first opening exposing a portion of the (1-1)-th electrode; and a first intermediate electrode electrically connecting the contact electrode on the (2-1)-th electrode and the contact electrode on the (1-2)-th electrode.