Pixel Circuit Sharing Across Rows for High-Resolution Displays
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Solution Overview
Problem
The challenge is to maintain high resolution in display apparatuses while minimizing the number of pixel circuits, scan lines, and data lines to prevent the screen-door effect, which occurs when the gaps between pixels are visible, and to reduce the complexity and size of the driving components.
Innovation Solution
The display apparatus incorporates a substrate with pixel circuits that drive multiple light-emitting elements in a matrix configuration, where each pixel circuit controls multiple light-emitting elements of different colors, sharing data lines and scan lines to minimize the overall number of components required, and uses conductive layers to electrically connect elements for efficient driving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the resolution of the display apparatus is increased to prevent the screen-door effect, then the image quality is improved, but the number of pixel circuits, scan lines, and data lines increases, leading to increased device complexity
Solution Approach 1:
Each pixel circuit is designed to commonly drive multiple light-emitting elements located at different rows and columns. The pixel circuit serves multiple functions by controlling light-emitting elements that emit different colors (red, green, blue) and are positioned at different spatial locations, thereby reducing the total number of pixel circuits needed while maintaining high display resolution
Solution Approach 2:
Multiple light-emitting elements are electrically connected to a single pixel circuit through conductive layers, merging the control function for these elements into one pixel circuit. This combining approach reduces the number of scan lines and data lines required, simplifying the overall display structure while achieving high resolution
2Device complexity
If the number of pixel circuits, scan lines, and data lines is reduced to simplify the display structure, then the device complexity is decreased, but the ability to maintain high resolution may be compromised
Solution Approach 1:
The patent extends the control capability of pixel circuits across multiple rows and columns by utilizing conductive layers that connect light-emitting elements in different spatial dimensions. This dimensional extension allows a reduced number of pixel circuits to control a larger number of light-emitting elements arranged in a matrix, maintaining high resolution while simplifying the display structure
Data Source
AI summary
A display apparatus includes a substrate a first pixel circuit arranged on the substrate, and a plurality of light-emitting elements arranged in a matrix on the substrate. The first pixel circuit is configured to commonly drive a first light-emitting element located in a first row and a second light-emitting element located in a second row different from the first row from among the plurality of light-emitting elements.