Display Substrate Segmented Areas for Non-Rectangular LCD Panels
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Solution Overview
Problem
Existing liquid crystal display (LCD) panels are challenging to manufacture in shapes other than rectangular due to the line arrangement of gate and data lines and the positioning of driving parts, leading to increased complexity and costs in routing circuitry.
Innovation Solution
The display substrate is divided into four areas with gate and data lines formed on each area, allowing for flexible routing of gate control lines on the peripheral areas, reducing the number of film circuits needed and enabling the manufacture of LCD panels in various shapes by integrating driving parts and using flexible circuit films.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If gate lines and data lines are arranged in a conventional rectangular pattern with driving parts at corners, then the LCD panel can be manufactured with standard rectangular shape, but it becomes difficult to manufacture LCD panels with various non-rectangular shapes
Solution Approach 1:
The display area is divided into four separate display regions (first, second, third, and fourth display areas), each with its own gate driving part and data driving part. This segmentation allows each region to be independently configured and connected through peripheral gate control lines, enabling flexible arrangement that accommodates non-rectangular display shapes while maintaining standard manufacturing processes for each segment.
Solution Approach 2:
Gate control lines are routed along the peripheral area of the substrate, utilizing the peripheral dimension rather than routing through the central display area. This peripheral routing approach allows for flexible connection between driving parts and display regions without interfering with the display content, thereby enabling various non-rectangular display shapes.
2Device complexity
If driving parts are positioned at corners and connected through the display area, then electrical connection is achieved, but the routing circuitry becomes complex and requires more film circuits
Solution Approach 1:
The gate control lines are extracted from the display area and routed exclusively along the peripheral area of the substrate. This separation removes the routing complexity from the display region, simplifying the overall circuit design and reducing the number of film circuits required in the display area while maintaining all necessary electrical connections.
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 approach allows for the reduction of electrical components, simplifies routing circuitry, and lowers manufacturing costs while enabling the production of LCD panels with non-rectangular shapes, such as circular or polygonal forms.
Implementation Method 1
An arrangement of the liquid crystal layer is altered by an electric field formed between the pixel electrode and the common electrode. Thus, light transmissivity through the liquid crystal layer is varied.
Implementation Method 2
a liquid crystal layer interposed between the first substrate and the second substrate... An arrangement of the liquid crystal layer is altered by an electric field
Data Source
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Figure 3~4
AI summary
A display substrate includes a base substrate, a gate line portion, a data line portion, and a pixel portion. The base substrate includes a display area divided into first to fourth divided display areas, and first to fourth peripheral areas. The gate line portion includes a plurality of first gate lines, and a plurality of second gate lines. The data line portion includes a plurality of first data lines, and a plurality of second data lines. The pixel portion is disposed in the display area to be electrically connected to the first and second gate lines and the first and second data lines, respectively.