Liquid Crystal Display Panel Alternating Voltage Rows
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Solution Overview
Problem
Liquid crystal display panels face limitations in viewing angle and aperture ratio due to the high number of thin film transistors and capacitors required to achieve wide viewing angles, which compromises brightness and transmittance.
Innovation Solution
The liquid crystal display panel design alternates rows of pixel units with different voltage levels, reducing the number of thin film transistors and capacitors, allowing for increased viewing angles while maintaining or improving brightness and transmittance by charging adjacent pixels differently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of thin film transistors and capacitors is increased to achieve wide viewing angles, then the viewing angle is improved, but the aperture ratio and transmittance decrease
Solution Approach 1:
The patent merges the functions of multiple thin film transistors into a single thin film transistor by using a scanning circuit that applies different voltages to different regions of the liquid crystal layer simultaneously. This reduces the number of transistors per pixel while maintaining the ability to control multiple sub-pixels, thereby increasing the aperture ratio without sacrificing viewing angle performance
Solution Approach 2:
The patent employs dynamic voltage control where a single thin film transistor controls multiple sub-pixels by applying different voltages at different time periods. The scanning circuit dynamically adjusts the voltage levels to achieve the desired viewing angle effect without requiring additional static components, thus improving aperture ratio
2Adaptability or versatility
If the number of thin film transistors and capacitors is increased to achieve wide viewing angles, then the viewing angle is improved, but the manufacturing complexity increases
Solution Approach 1:
The patent combines multiple transistor functions into a single thin film transistor by implementing a time-multiplexed control scheme. The scanning circuit enables one transistor to control multiple sub-pixels sequentially, reducing component count and simplifying manufacturing processes while achieving wide viewing angles through dynamic voltage control
Solution Approach 2:
The single thin film transistor is designed to perform multiple functions by controlling different sub-pixels at different time periods. The scanning circuit provides multi-functional control capabilities, enabling the same hardware component to achieve wide viewing angle performance that previously required multiple dedicated transistors
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 design enhances viewing angles while simplifying manufacturing and reducing the number of thin film transistors and capacitors, thereby increasing the aperture and transmittance ratios, preventing light and dark lines, and improving display performance.
Implementation Method 1
The liquid crystal layer 310 is sandwiched between the array substrate 200 and the color film substrate 300
Implementation Method 2
IPS makes the liquid crystals be switched through the electrical field
Data Source
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AI summary
A liquid crystal display panel and a device. The panel comprises: a first pixel (11) comprising a first thin film transistor, a first charging capacitor and a second charging capacitor, wherein one end of the first charging capacitor is connected to a drain electrode of the first thin film transistor, and the other end of the first charging capacitor is connected to the second charging capacitor; and a second pixel (12) comprising a second thin film transistor, wherein a drain electrode of the second thin film transistor is connected to the other end of the first charging capacitor.