Array Substrate Common Line Structure for Flicker Reduction
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Solution Overview
Problem
Current display devices suffer from issues such as uneven brightness and susceptibility to flickering and jittering due to uneven diffusion of alignment fluid during the formation of alignment films, which is exacerbated by the use of multiple vias in the array substrate, leading to inconsistent storage capacitance and potential differences in pixel electrode potentials.
Innovation Solution
The array substrate incorporates lap and auxiliary electrodes in the common electrode lines, reducing the number of vias and ensuring consistent storage capacitance across sub-pixel regions, thereby minimizing the likelihood of flickering and jittering by maintaining uniform alignment fluid diffusion and pixel electrode potential differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a common glass substrate is used, then the substrate has good processability and low cost, but it cannot be bent into a specific shape
Solution Approach 1:
The substrate is divided into multiple flexible insulating substrates that can be separately formed and then combined. Each substrate can be independently processed on a flat surface using conventional techniques, then assembled to create a three-dimensional bent configuration, resolving the contradiction between ease of manufacture and shape flexibility.
Solution Approach 2:
The invention transitions from two-dimensional flat substrates to three-dimensional bent structures by stacking multiple flexible substrates at different angles. This dimensional transformation allows the final product to achieve complex three-dimensional shapes while each individual substrate remains flat and easy to manufacture.
2Adaptability or versatility
If the substrate is bent into a specific shape, then the display can be folded or bent, but the connection between conductive layers becomes complicated
Solution Approach 1:
The conductive connections are segmented across multiple flexible insulating substrates. Each substrate contains conductive patterns that connect to adjacent substrates through protruding and recessed portions, creating a modular connection system that simplifies the overall complexity compared to attempting to bend a single rigid substrate.
Solution Approach 2:
The conductive patterns are nested within the flexible insulating substrates, with conductive protrusions from one substrate fitting into recesses of the next. This nested arrangement allows complex three-dimensional connections to be achieved through simple planar patterns on each individual substrate layer.
3Illumination intensity
If transparent conductive materials are used for wiring, then the display appearance is maintained, but the wiring pattern is limited to transparent materials
Solution Approach 1:
Different regions of the display use different conductive materials based on their specific requirements. Transparent conductive materials are used where visibility is critical, while non-transparent conductive materials are used in regions where electrical connection is the primary function. This local differentiation allows optimal material selection for each functional zone.
Solution Approach 2:
The conductive pattern design accommodates both transparent and non-transparent materials, allowing the same structural pattern to serve multiple functions. The wiring structure is designed to work with various material types, making the system universally applicable regardless of the specific conductive material chosen for each region.
Data Source
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AI summary
An array substrate (000) and a display apparatus, relating to the technical field of display. The array substrate (000) comprises: a substrate (100); a pixel electrode layer (200) and a common electrode layer (300) located on the substrate (100); and a plurality of common signal lines (400) located on the substrate (100), wherein the common signal lines (400) are insulated from the pixel electrode layer (200) and electrically connected to the common electrode layer (300), and an orthographic projection of the common signal lines (400) on the substrate (100) and an orthographic projection of the pixel electrode layer (200) on the substrate (100) have an overlapping area. The common signal lines (400) are provided with a plurality of electrode structures (400a), wherein different electrode structures (400a) are located in different sub-pixel areas (00a), and the plurality of electrode structures (400a) comprise: a connection electrode (401) connected with the common electrode layer (300), and an auxiliary electrode (402) not connected with the common electrode layer (300). The connection electrode (401) and the auxiliary electrode (402) are both provided in the common signal lines (400), and thus the sizes of storage capacitors (Cst) in the sub-pixel areas (00a) where the connection electrode (401) and the auxiliary electrode (402) are located are approximately the same, thereby reducing the probability of bad phenomena such as picture flicker and jitter of the picture displayed by the display apparatus.