Liquid Crystal Display Static Electricity Absorbing Pattern
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Solution Overview
Problem
Liquid crystal display devices face challenges in effectively blocking static electricity from the outside or generated internally, which can damage components and affect image display.
Innovation Solution
Incorporating static electricity absorbing patterns on non-display areas of the substrates, connected to flexible printed circuit boards and grounded, to absorb and discharge static electricity without requiring additional structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate static electricity blocking structure or device is introduced, then static electricity protection is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent merges the static electricity absorption function with the existing non-display area of the first substrate by forming a static electricity absorbing pattern using ITO or IZO material. This integration eliminates the need for separate static electricity blocking structures or devices, thereby maintaining protection functionality while reducing device complexity and manufacturing cost.
Solution Approach 2:
The non-display area of the first substrate is given multiple functions: it serves as both a structural peripheral region and a static electricity absorption zone through the pattern formation. This multi-functionality allows the same area to provide both mechanical support and electrostatic protection without requiring additional dedicated components.
2Reliability
If a separate static electricity blocking structure or device is introduced, then static electricity protection is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines the static electricity protection function with the existing substrate structure by forming a pattern directly on the non-display area. This approach eliminates the need for separate components and additional assembly steps, thereby reducing manufacturing cost while maintaining effective static electricity protection.
Solution Approach 2:
The first substrate itself provides static electricity protection through the formed pattern, making the substrate self-sufficient for protection functionality. This self-service approach eliminates the need for external protection devices and reduces overall manufacturing complexity and cost.
3Reliability
If the static electricity absorbing pattern is disposed on the non-display area, then static electricity protection is improved, but the display area is reduced
Solution Approach 1:
The patent applies the static electricity absorbing pattern specifically in the non-display area of the first substrate, where static electricity accumulation is most likely to occur. By localizing the protection function to this specific region, the display area remains maximized while still providing effective electrostatic protection where it is most needed.
Solution Approach 2:
The first substrate is divided into display area and non-display area, with the static electricity absorbing pattern formed only in the non-display peripheral region. This segmentation allows the display area to remain fully functional and maximized while dedicating the peripheral area to protection functions.
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
Effectively blocks static electricity influences on internal devices, protecting transistors, flexible printed circuit boards, and ensuring reliable image display with reduced costs.
Implementation Method 1
a first static electricity absorbing pattern disposed on the non-display area of the first substrate... The first static electricity absorbing pattern may be connected with some of the pad electrodes and may be grounded
Data Source
AI summary
Disclosed is a liquid crystal display device, including: a first substrate including a display area displaying an image, and a non-display area disposed in a form surrounding the display area; a second substrate spaced apart from the first substrate; and a liquid crystal layer disposed between the first substrate and the second substrate; and a first static electricity absorbing pattern disposed on the non-display area of the first substrate.