Pixel Circuit Capacitor Segmentation for High-Resolution Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in achieving high resolution characteristics due to difficulties in securing sufficient capacitance per unit area and controlling capacitance magnitude in circuit elements, which affects the reliability of electrical signals.
Innovation Solution
The display device incorporates a conductive structure layer with specific configurations, including base portions, protrusion portions, and middle portions to create defined capacitance areas, allowing for precise control of capacitance and efficient use of circuit element area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If the size of circuit elements is decreased to achieve high resolution, then the area occupied by circuit elements is reduced, but the capacitance per unit area becomes insufficient and difficult to control
Solution Approach 1:
The capacitor is divided into multiple capacitance areas (first capacitance area and second capacitance area) with different capacitance values. Each area contains corresponding first and second protrusion portions that face each other to form capacitor structures. This segmentation allows independent control of capacitance in different regions while maintaining a compact overall size, resolving the contradiction between small area and reliable capacitance control.
Solution Approach 2:
Different regions of the capacitor are designed with different local characteristics - the first capacitance area and second capacitance area have different capacitance values and are formed with different protrusion portions. This local differentiation enables precise control of total capacitance by adjusting the contribution of each region, achieving reliable capacitance control within a reduced area.
2Area of moving object
If the size of circuit elements is decreased to achieve high resolution, then the area occupied by circuit elements is reduced, but the capacitance per unit area becomes insufficient
Solution Approach 1:
The capacitor structure utilizes vertical dimension by forming protrusion portions that extend in a second direction (vertical) from the first base portion and second base portion. The first and second protrusion portions face each other across a gap, creating capacitor structures in the vertical dimension. This dimensional transition allows achieving sufficient capacitance per unit area by utilizing both planar and vertical spaces, resolving the contradiction between reduced area and sufficient capacitance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances capacitance control, improves electrical signal reliability, and enables high resolution characteristics in the display device.
Implementation Method 1
a portion of the first protrusion portions and a portion of the second protrusion portions are in a first capacitance area, and face each other, wherein a portion of the first protrusion portions and a portion of the second protrusion portions are in a second capacitance area spaced apart from the first capacitance area in the first direction, and face each other
Data Source
AI summary
A display device according to one or more embodiments of the present disclosure includes: a pixel circuit layer including a conductive structure layer on a substrate; and a light-emitting element on the pixel circuit layer, wherein the conductive structure layer includes: a first and second base portion, extending in a first direction, the first and second base portion being spaced apart; first protrusion portions extending in a second direction; second protrusion portions extending in the second direction; and a first middle portion extending in the second direction, wherein a portion of the first and second protrusion portions are in a first capacitance area, and face each other, wherein a portion of the first and second protrusion portions are in a second capacitance area spaced apart from the first capacitance area, and face each other, and wherein the first middle portion is between the first and second capacitance area.