Transflective LCD Panel Single Cell Gap Electrode Design
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Solution Overview
Problem
Transflective liquid crystal display panels face challenges in achieving efficient light utilization and high contrast ratios while maintaining functionality in both bright and dark environments, with existing designs either consuming high energy or relying on external light sources.
Innovation Solution
A transflective liquid crystal display panel with a single cell gap and a new electrode structure, featuring alternately arranged common and pixel electrodes, allows for both transmission and reflection regions to operate efficiently, enhancing display view and contrast ratio by optimizing electrode widths and gaps.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a transmissive type LCD display uses a backlight source, then a bright image can be displayed in a dark environment, but the utilization of the backlight source is low and energy consumption is high
Solution Approach 1:
The display panel is divided into two distinct regions: a transmission region that uses the backlight source for dark environment display, and a reflection region that uses external light sources for bright environment display. This segmentation allows the display to utilize different light sources in different regions, improving overall energy efficiency by not relying solely on the power-consuming backlight source.
Solution Approach 2:
The display panel is designed to perform multiple functions using a single structure: it can display images in both dark environments (using backlight transmission) and bright environments (using external light reflection). The same panel structure supports both transmissive and reflective display modes, eliminating the need for separate display systems and improving energy utilization.
2Use of energy by moving object
If a reflective type LCD display uses external light source, then power consumption is relatively low, but it cannot display image in the dark environment
Solution Approach 1:
The display panel is divided into two distinct regions: a transmission region that uses the backlight source for dark environment display, and a reflection region that uses external light sources for bright environment display. This segmentation allows the display to utilize different light sources in different regions, improving overall energy efficiency by not relying solely on the power-consuming backlight source.
Solution Approach 2:
The display panel is designed to perform multiple functions using a single structure: it can display images in both dark environments (using backlight transmission) and bright environments (using external light reflection). The same panel structure supports both transmissive and reflective display modes, eliminating the need for separate display systems and improving energy utilization.
3Adaptability or versatility
If a transflective type LCD display combines transmission and reflection regions, then it can display in both dark and bright environments, but achieving single cell gap structure with new electrode structure is complex
Solution Approach 1:
The patent merges the transmission region and reflection region into a single cell gap structure, eliminating the need for separate cells or complex intermediate layers. The electrode structures in both regions are integrated within the same liquid crystal cell, simplifying the overall device structure while maintaining the ability to display in both dark and bright environments.
Solution Approach 2:
Different electrode structures are applied to different regions: the transmission region uses a standard transparent electrode configuration, while the reflection region uses a reflective electrode configuration. This local differentiation allows each region to be optimized for its specific function while maintaining overall structural simplicity through the single cell gap design.
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 achieves a transflective display effect with improved energy efficiency and increased contrast ratio, enabling bright image display in various lighting conditions without excessive energy consumption.
Implementation Method 1
the liquid crystal of said liquid crystal layer is a positive liquid crystal
Implementation Method 2
a liquid crystal layer is encapsulated in the space between these two substrates
Implementation Method 3
the array substrate thereof uses reflective electrodes in metal or other good reflective material as the reflection region, which is suitable to reflect the front light source or the external light source
Data Source
AI summary
The present invention provides a transflective liquid crystal display panel and a liquid crystal display device. By designing the electrode structure of the transmission region and the reflection region, the present invention can achieve a transflective display effect, enlarging display view, increasing contrast ratio, and realizing a single cell gap structure.