Matrix-Wired Display Layout With Banks to Prevent LED Short-Circuits
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing display devices face challenges in efficiently driving multiple light emitting devices while preventing short-circuits between adjacent devices, which can lead to image abnormalities and require numerous external driving components, complicating the manufacturing process.
Innovation Solution
A display device with a matrix-form wiring structure using column and row lines to connect electrodes of light emitting devices, along with a bank structure to prevent short-circuits, and a reduced number of external driving components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a matrix-form wiring structure with column and row lines is used to connect light emitting devices, then the ability to drive multiple light emitting devices is improved, but the complexity of the wiring structure increases
Solution Approach 1:
The wiring structure is segmented into column lines and row lines that intersect to form a matrix pattern. Each light emitting device is connected to one column line and one row line, allowing independent addressing and driving of each device while maintaining a systematic and manageable wiring architecture.
Solution Approach 2:
The column lines and row lines serve multiple functions: they provide electrical connections to light emitting devices, act as signal transmission paths, and enable selective activation of specific devices through matrix addressing. This multi-functionality reduces the need for separate dedicated wiring for each function.
2Reliability
If banks are added to prevent short-circuits between adjacent light emitting devices, then reliability is improved, but device complexity increases
Solution Approach 1:
Banks are introduced as intermediary insulating structures positioned between adjacent light emitting devices. These banks act as mediators that prevent direct contact and short-circuits between devices while allowing the wiring structure to maintain its matrix configuration. The banks provide electrical isolation without interfering with the functional wiring paths.
3Ease of manufacture
If the number of external driving components is reduced, then ease of manufacture is improved, but the capability to drive multiple light emitting devices may be compromised
Solution Approach 1:
Multiple driving functions are merged into the matrix wiring structure itself. The column lines and row lines collectively provide both signal distribution and device selection capabilities, eliminating the need for separate external driving components for each light emitting device. This integration reduces assembly complexity while maintaining full driving capability.
Solution Approach 2:
The matrix wiring structure is designed to be self-sufficient for driving multiple light emitting devices. The intersecting column and row lines automatically provide the necessary electrical connections and control signals without requiring additional external driving components, enabling the system to drive devices through its inherent structural design.
Data Source
AI summary
A display device may include a substrate, light emitting devices on the substrate and in a display area, banks on the substrate and in the display area, row lines on the substrate, and column lines on the substrate. The column lines may include first and second column lines spaced apart from each other. The light emitting devices may include first and second light emitting devices between the first and second column lines. The first light emitting device may be electrically connected to the first column line, and the second light emitting device may be electrically connected to the second column line. The banks may include a first bank on which the first light emitting device and the second light emitting device are mounted. The first light emitting device and the second light emitting device may be together on the first bank, and may be positioned diagonally relative to each other.