Display Panel Branch-Electrode Routing for Transistor Protection
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Solution Overview
Problem
Existing display devices face issues with external light reflection and scattering in outdoor environments, affecting display quality, and there is a need to protect transistors in non-display areas.
Innovation Solution
A display panel design incorporating a color conversion layer with illuminants and a light control layer to manage light transmission and absorption, along with a polarizing layer to enhance display quality and protect transistors in non-display areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a polarizing member is used to prevent external light reflection and scattering, then display quality is improved, but device complexity increases
Solution Approach 1:
The patent combines the polarizer and phase retardation layer into a single integrated polarizing member, merging two separate optical components into one unified structure that simultaneously performs polarization and phase compensation functions
Solution Approach 2:
The polarizing member serves multiple functions: it acts as a polarizer to control light polarization, a phase retardation layer to compensate for phase differences, and an external light reflection prevention mechanism, thereby reducing the need for separate components
2Reliability
If the non-display area is left without protection, then device complexity is reduced, but transistor reliability deteriorates due to external light exposure
Solution Approach 1:
The patent applies the color conversion layer selectively to the non-display area adjacent to the display area, providing localized protection to transistors without extending the complex structure to the entire device area
Solution Approach 2:
The color conversion layer acts as an intermediary protective layer between the external environment (external light) and the transistors in the non-display area, absorbing harmful light before it reaches the sensitive electronic components
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
The solution improves display quality by managing external light and protects transistors, ensuring effective image rendering and device durability in outdoor conditions.
Implementation Method 1
a color conversion layer disposed on the first base substrate and including a first illuminant that absorbs the first color light to emit second color light having a color that is different from the color of the first color light
Implementation Method 2
a polarizing layer to enhance display quality
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A display panel comprising a first display substrate (BS1) including a non-display area (NDA) in which a driving circuit and a light shielding layer (RBM) are disposed, and a display area (DA) in which a pixel electrode (PE) connected to the driving circuit is disposed, a second display substrate (BS2) facing the first display substrate, and a liquid crystal layer (LCL) disposed between the first display substrate and the second display substrate. The driving circuit includes a first transistor (TR1), a second transistor (TR3), a first branch electrode (GE1S) connected to the first transistor, a second branch electrode (CE1) connected to the second transistor and overlapping with the first branch electrode in a direction parallel to a surface of the first display substrate, and a connection electrode (CN1) connecting the first and second branch electrodes disposed on different layers from each other. The light shielding layer overlaps with the first and second transistors and exposes the first and second branch electrodes.