Sensor-Area Display Electrode Layout for Resolution Retention
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Solution Overview
Problem
Existing display apparatuses face challenges in integrating sensors within the display area while maintaining high image resolution and reducing thickness and weight, as well as accommodating diverse usage scenarios.
Innovation Solution
Incorporating a sensor area with a transmission portion and sub-pixels, utilizing electrode layers to overlap with lines and transistors, and employing a substrate design that allows for reduced thickness and weight, while maintaining image quality through specific electrode layer configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a sensor area is integrated within the display area, then functionality and versatility are enhanced, but device complexity increases
Solution Approach 1:
The patent merges the sensor area with the display area by integrating sensor components (photodetectors, transistors, electrode layers) directly within the display structure. The sensor area shares common elements such as the substrate, electrode layers, and thin-film transistors with the display area, allowing light to pass through the display area to reach the sensor components below, thereby enhancing functionality without proportionally increasing device complexity
Solution Approach 2:
The display apparatus is designed with multi-functionality where the same structural elements serve dual purposes: the electrode layers and thin-film transistors in the sensor area are analogous to those in the display area, enabling the device to function both as a display and as a sensor (e.g., for touch sensing or environmental light detection), thereby improving versatility while managing complexity through shared architecture
2Measurement precision
If electrode layers are configured to overlap with lines and transistors in the sensor area, then image resolution is maintained, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by configuring electrode layers with specific patterns in different areas: in the sensor area, electrode layers are arranged to overlap with scan lines and transistor structures at precise locations to maintain signal integrity and resolution, while in the display area, the electrode layers are configured for optimal display performance. This localized optimization allows high image resolution to be maintained without uniformly increasing manufacturing precision requirements across the entire device
3Weight of stationary object
If the substrate design is optimized for reduced thickness and weight, then portability is improved, but structural strength may be compromised
Solution Approach 1:
The patent employs composite material structures in the substrate and supporting layers, combining multiple materials with complementary properties to achieve both reduced weight and maintained strength. The substrate and encapsulation layers are designed as multi-layer composite structures that provide mechanical support while minimizing weight, allowing the display apparatus to be thinner and lighter without compromising structural integrity
Data Source
AI summary
Provided is a display apparatus including a substrate having a display area including a main pixel, and a sensor area including a sub-pixel and a transmission portion, a plurality of first lines arranged in the sensor area, extending in a first direction, and bypassing the transmission portion, and a first electrode layer under the plurality of first lines, between the sub-pixel and the transmission portion, and at least partially overlapping a spacing region between the plurality of first lines.