Intermediate Pixel Electrode Layout for Lower-Power LED Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current display devices face inefficiencies in using light emitting elements and power alignment due to the lack of optimized electrode configurations and structures for subminiature light emitting elements, leading to suboptimal light source formation and power consumption.
Innovation Solution
A display device design featuring a pixel structure with specific electrode configurations, including serial and parallel combinations of light emitting elements, intermediate electrodes, and contact electrodes, which enhances the alignment and utilization of light emitting elements, reducing power consumption and improving light source efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If light emitting elements are arranged in conventional electrode configurations, then device structure is simple, but light source formation efficiency is suboptimal and power consumption is high
Solution Approach 1:
The pixel electrode is divided into multiple sub-electrodes (first sub-electrode, second sub-electrode, third sub-electrode, fourth sub-electrode) arranged in a specific pattern. This segmentation allows for optimized electrical connection to multiple light emitting elements, improving current distribution and reducing power consumption while enhancing light source formation efficiency through parallel connection of multiple elements
Solution Approach 2:
The electrode configuration transitions from conventional linear arrangements to a two-dimensional grid pattern with sub-electrodes positioned at different locations. The first and third sub-electrodes extend in a first direction while the second and fourth sub-electrodes extend in a second direction, creating a multi-dimensional electrode network that improves spatial utilization and connection efficiency
2Productivity
If the number of light emitting elements is increased, then light source efficiency improves, but electrode configuration complexity increases
Solution Approach 1:
Multiple sub-electrodes are merged into a single pixel electrode structure that functions as an integrated unit. The first, second, third, and fourth sub-electrodes are electrically connected to form a unified electrode system that can simultaneously drive multiple light emitting elements, reducing the need for separate electrode structures for each element
Solution Approach 2:
The pixel electrode structure serves multiple functions simultaneously: it provides electrical connection to multiple light emitting elements, distributes current efficiently across the pixel area, and maintains a relatively simple overall configuration. The sub-electrode arrangement allows a single electrode structure to fulfill what would otherwise require multiple separate electrode systems
Data Source
AI summary
A display device may include a pixel disposed in a display area. The pixel may include: a first electrode extending in a first direction; a second electrode including a first electrode part spaced apart from the first electrode in a direction intersecting with the first direction and extending in the first direction, a second electrode part extending from the first electrode part in a second direction, and a third electrode part extending form the second electrode part in the first direction; a third electrode including at least one area spaced apart from the third electrode part in the direction intersecting with the first direction and extending in the first direction; a first light emitting element connected between the first electrode and the second electrode; and a second light emitting element connected between the second electrode and the third electrode.