LCD Non-Display Region Slit Charge Dissipation
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Solution Overview
Problem
The increasing number of wirings in non-display regions of liquid crystal display devices leads to unwanted electric charges, causing unintended color changes in the display image due to wiring coupling, which existing technologies have not effectively addressed.
Innovation Solution
A liquid crystal display device design featuring a non-light transmitting layer with slits in the non-display region to redirect and dissipate electric charges generated by wiring coupling, thereby reducing their impact on the display image. The slits extend through various regions of the non-display area, creating a longer path for charges to propagate and minimizing their influence on the display region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of wirings in non-display region is increased to achieve higher density and smaller size, then device integration is improved, but electric charges generated by wiring coupling increase causing unintended color changes in display image
Solution Approach 1:
A ground electrode is introduced as an intermediary component between the signal wirings and the liquid crystal layer. This ground electrode serves as a mediator to collect and dissipate electric charges generated by wiring coupling, preventing them from affecting the liquid crystal molecules and causing color changes. The ground electrode acts as a charge sink that protects the display image quality while allowing high-density wiring arrangements.
Solution Approach 2:
The invention converts the harmful electric charges generated by wiring coupling into a beneficial effect by using them to charge the ground electrode. The ground electrode absorbs these charges and dissipates them through its connection to the common electrode, transforming the harmful charge accumulation into a controlled charge dissipation mechanism that protects the display image.
2Object-affected harmful factors
If ground electrode is added to suppress electric charges, then display image quality is improved, but device complexity increases
Solution Approach 1:
The ground electrode is merged with the common electrode structure, combining two functional elements into a single integrated component. This merging reduces the number of separate layers and simplifies the overall device structure while maintaining the charge suppression function. The ground electrode and common electrode share the same physical space and functional role in charge dissipation.
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 configuration effectively reduces the influence of electric charges on the display image, minimizing unintended color changes and improving image stability by extending the path for charge propagation and dissipating static electricity.
Implementation Method 1
a non-light transmitting layer formed in the non-display region, and configured to restrict transmission of light
Implementation Method 2
electric charges are generated in the non-display region due to wiring coupling of a gate line... the first slit formed in the overlapping region may have a width larger than a width of the first slit formed in the non-overlapping region
Data Source
AI summary
In a liquid crystal display device, a display panel includes a display region in which an image is to foe displayed, and a non-display region formed into a frame shape surrounding the display region. The non-display region includes a first region in which the gate driver is arranged, and a second region in which the source driver is arranged. The non-display region has a non-light transmitting layer formed therein, which is configured to restrict transmission of light. The non-light transmitting layer has a first slit formed therein, which extends through the first region and the second region and passes through the non-light transmitting layer.