Transflective Display Panel with Mixed Transistor Materials
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Solution Overview
Problem
Current transflective liquid crystal displays (TRLCDs) face challenges in balancing image quality and power consumption, failing to meet the requirements of improving display clarity while reducing power usage, especially when rendering dynamic images.
Innovation Solution
The display panel incorporates different types of transistors, specifically oxide semiconductor transistors for reflective regions to reduce current leakage and polysilicon transistors for transmissible regions to enhance frame rates, allowing for power-saving during static images and improved image quality during dynamic images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same type of transistor is used in both reflective and transmissible regions, then the device structure is simple, but the display quality and power consumption cannot be optimized simultaneously
Solution Approach 1:
The patent applies local quality by using different transistor types in different regions: oxide semiconductor transistors in reflective regions for low power consumption, and polysilicon transistors in transmissible regions for high-speed switching. This regional differentiation allows each area to have optimized characteristics for its specific function, resolving the contradiction between structural simplicity and display quality.
2Productivity
If polysilicon transistors are used in reflective regions, then the frame rate is improved, but the power consumption increases
Solution Approach 1:
The patent applies local quality by using different transistor types in different regions: oxide semiconductor transistors in reflective regions for low power consumption, and polysilicon transistors in transmissible regions for high-speed switching. This regional differentiation allows each area to have optimized characteristics for its specific function, resolving the contradiction between structural simplicity and display quality.
3Use of energy by moving object
If oxide semiconductor transistors are used in transmissible regions, then the power consumption is reduced, but the image clarity deteriorates
Solution Approach 1:
The patent applies local quality by using different transistor types in different regions: oxide semiconductor transistors in reflective regions for low power consumption, and polysilicon transistors in transmissible regions for high-speed switching. This regional differentiation allows each area to have optimized characteristics for its specific function, resolving the contradiction between structural simplicity and display quality.
4Manufacturing precision
If high frame rate is achieved for dynamic images, then the image quality is improved, but the power consumption increases
Solution Approach 1:
The patent applies local quality by using different transistor types in different regions: oxide semiconductor transistors in reflective regions for low power consumption, and polysilicon transistors in transmissible regions for high-speed switching. This regional differentiation allows each area to have optimized characteristics for its specific function, resolving the contradiction between structural simplicity and display quality.
Data Source
AI summary
A display panel includes a substrate, at least one first transistor, and at least one second transistor. The substrate includes at least one reflective region and at least one transmissible region. The first transistor is configured on the substrate and located on the corresponding reflective region. Each of the first transistors includes a first active layer. The second transistor is configured on the substrate and located on the corresponding transmissible region. Each of the second transistors includes a second active layer. A material of the first active layer is different from a material of the second active layer.