Pixel Power Line Layout for Static-Resistant Display Panels
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display apparatuses face defects due to static electricity generated from external sources, which can damage the semiconductor pattern and affect pixel performance.
Innovation Solution
A display apparatus design featuring a semiconductor pattern that continuously extends in a direction, with vertical power lines and contact plugs connecting pixels, and an insulating layer to manage static electricity, preventing its isolation and distribution across the pattern.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a semiconductor pattern is formed with discrete pixel areas, then each pixel can be independently controlled, but static electricity accumulates and causes defects
Solution Approach 1:
The patent merges adjacent pixel areas into a continuous semiconductor pattern where pixel areas are connected through shared semiconductor regions. This continuous structure allows static electricity to be distributed across multiple pixels rather than accumulating in isolated areas, while still maintaining independent control through separate transistor gates for each pixel.
Solution Approach 2:
The patent converts the harmful effect of static electricity accumulation into a beneficial distribution mechanism. By designing the semiconductor pattern so that pixel areas are connected, the static electricity that would normally damage discrete pixels is instead distributed across the continuous semiconductor structure, reducing the impact on any single pixel and preventing defects.
2Power
If vertical power lines are placed on each pixel, then driving voltage is delivered efficiently, but the complexity of the semiconductor pattern increases
Solution Approach 1:
The patent makes the semiconductor pattern multi-functional by having it serve both as the active region for pixel control and as the interconnect structure for power delivery. The continuous semiconductor pattern that connects pixel areas also functions as the pathway for vertical power lines, eliminating the need for separate complex interconnect structures while maintaining efficient voltage delivery.
3Reliability
If contact plugs are used to connect power lines to pixel areas, then electrical connection is achieved, but the manufacturing process becomes more complex
Solution Approach 1:
The patent merges the function of contact plugs with the continuous semiconductor pattern itself. Instead of requiring separate contact plug structures to bridge power lines and pixel areas, the continuous semiconductor pattern provides inherent electrical connection pathways that integrate both functions into a single manufacturable structure, reducing process complexity while maintaining reliable electrical connection.
Data Source
AI summary
A display apparatus includes: a first pixel; a second pixel adjacent to the first pixel in a row direction; a first vertical power line extending in a column direction crossing the row direction on the first pixel, and to deliver a driving voltage to the first pixel; a second vertical power line extending in the column direction on the second pixel, and to deliver the driving voltage to the second pixel; and a semiconductor pattern including a first pixel area at the first pixel, a second pixel area at the second pixel, and a connection area connecting the first vertical power line to the second vertical power line.