Transparent Display Panel Anode Drive Circuit Layout
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing transparent display technologies face challenges in optimizing the arrangement of sub-pixel drive circuits and anodes to enhance aperture ratio and reduce manufacturing complexity, particularly in high-resolution displays.
Innovation Solution
The display panel design includes a novel arrangement of sub-pixel drive circuits with anodes that cover multiple drive circuits, featuring a 2×2 matrix layout and anode via holes that overlap specific components of the drive circuits, ensuring efficient coverage and reduced overlap between anodes, thereby improving aperture ratio and manufacturing ease.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional arrangements of sub-pixel drive circuits and anodes are used, then manufacturing processes become complex with increased overlap between components, but aperture ratio remains limited
Solution Approach 1:
The patent merges the functions of multiple anodes into a single transparent common anode that serves all sub-pixels (red, green, blue). This eliminates the need for separate anode structures for each color, simplifying manufacturing processes and reducing the number of deposition steps while simultaneously increasing the aperture ratio by removing redundant opaque structures.
Solution Approach 2:
The patent transitions from planar 2D arrangements of drive circuits to a three-dimensional stacked architecture where drive circuits are positioned vertically above the pixel array. This vertical integration reduces lateral overlap between anodes and drive circuits, simplifying manufacturing while maximizing the aperture area available for light transmission.
2Manufacturing precision
If separate anodes are used for each sub-pixel, then color display precision is maintained, but manufacturing complexity increases and aperture ratio decreases
Solution Approach 1:
The patent implements local quality differentiation through color filter layers positioned at specific locations for each sub-pixel (red, green, blue regions). While the anode structure is unified and simple, the color filters provide localized color properties, maintaining color display precision without requiring complex separate anode structures for each color.
Solution Approach 2:
The transparent common anode serves multiple functions simultaneously: it acts as the anode for all three color sub-pixels, provides a structural support layer, and maintains electrical connectivity across the pixel array. This multi-functional design reduces device complexity while preserving color display precision through the universal electrode's interaction with color-specific filter layers.
3Area of stationary object
If drive circuits are arranged to minimize overlap with anodes, then aperture ratio improves, but manufacturing alignment precision requirements increase
Solution Approach 1:
The patent resolves alignment precision challenges by moving drive circuits from the lateral 2D plane to the vertical 3D dimension, stacking them above the pixel array. This spatial reconfiguration eliminates lateral alignment constraints between anodes and drive circuits, allowing maximum aperture ratio without increasing manufacturing alignment difficulty, as the vertical stacking is achieved through standard multi-layer fabrication processes.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A display panel and an electronic device, wherein the display panel including: a base substrate; and a pixel arranged on the base substrate, wherein the pixel includes a first sub-pixel and a second sub-pixel, the first sub-pixel includes a first sub-pixel drive circuit and a first light emitting element driven by the first sub-pixel drive circuit, the second sub-pixel includes a second sub-pixel drive circuit and a second light emitting element driven by the second sub-pixel drive circuit, the first sub-pixel drive circuit and the second sub-pixel drive circuit are arranged sequentially in a first direction parallel to the base substrate and extend in a second direction parallel to the base substrate and crossing the first direction, wherein the first light emitting element includes a first anode electrically connected to the first sub-pixel drive circuit, the second light emitting element includes a second anode electrically connected to the second sub-pixel drive circuit, an orthographic projection of each of the first anode and the second anode on the base substrate partially covers an orthographic projection of the first sub-pixel drive circuit on the base substrate and an orthographic projection of the second sub-pixel drive circuit on the base substrate, and the orthographic projection of the first anode on the base substrate does not overlap the orthographic projection of the second anode on the base substrate.