Panel Device Light Sensor Trace Routing
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Solution Overview
Problem
Conventional panel devices face challenges in effectively detecting ambient brightness while maintaining a reduced frame size, as the increase in sensor numbers leads to larger frame sizes, limiting the adjustment and accuracy of ambient brightness detection.
Innovation Solution
The proposed panel device incorporates multiple light sensors with different sensitivities and a control circuit connected via traces that extend through the display area, allowing simultaneous ambient brightness detection without increasing the frame size, thereby improving detection accuracy and reducing the time required for brightness determination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple light sensors are added to improve ambient brightness detection accuracy, then measurement precision is improved, but device complexity and frame size increase
Solution Approach 1:
The patent extends traces from the control circuit through the display area to reach light sensors positioned in the non-display area. This spatial reconfiguration allows multiple sensors to be integrated without increasing the visible frame size, as the traces utilize the display area as a transmission pathway rather than requiring additional peripheral space.
Solution Approach 2:
The traces serve dual functions: they transmit control signals from the control circuit to the light sensors, and simultaneously serve as the connection pathway that routes through the display area. This multi-functionality reduces the need for separate dedicated pathways, thereby avoiding additional frame size increases.
2Adaptability or versatility
If multiple light sensors with different sensitivities are used to improve detection range, then adaptability is improved, but device complexity increases
Solution Approach 1:
The light sensing function is segmented into multiple sensors with different sensitivities, where each sensor is optimized for specific ambient light conditions. This segmentation allows the system to handle a broader range of lighting environments by selecting or combining signals from sensors with appropriate sensitivities for each condition.
Solution Approach 2:
The patent varies the sensitivity parameter of different light sensors to expand the detection range. By incorporating sensors with different sensitivity characteristics, the system can accurately detect ambient brightness across diverse lighting conditions, from bright to dim environments, without requiring complex adjustment mechanisms.
3Measurement precision
If traces are extended through the display area to reach non-display area sensors, then measurement precision is improved, but manufacturing complexity increases
Solution Approach 1:
The traces are designed to serve multiple purposes: they carry control signals to the light sensors and simultaneously utilize the display area as their transmission pathway. This multi-functional design integrates the trace routing into the existing display structure, avoiding the need for separate dedicated pathways and reducing overall manufacturing complexity.
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 enables accurate and rapid ambient brightness detection with improved sensitivity ranges, allowing for precise adjustment of display brightness and color temperature without enlarging the frame, thus enhancing user experience and device efficiency.
Implementation Method 1
The first light sensor and the second light sensor are disposed in a second area of the panel device, to respectively sense ambient light and accordingly generate a first light sensing signal and a second light sensing signal
Data Source
AI summary
A panel device includes a touch sensor, a first light sensor and a second light sensor, a first trace, a second trace and a control circuit. The touch sensor is disposed in a first area of the panel device to generate a touch sensing signal. The first light sensor and the second light sensor are disposed in a second area of the panel device to sense ambient light and generate a first light sensing signal and a second light sensing signal. The first trace is coupled to the first light sensor. The second trace is coupled to the second light sensor. The control circuit connects the first trace and the second trace and receives the first light sensing signal and the second light sensing signal at the same time to determine an ambient brightness. Sensitivities of the first light sensor and the second light sensor are different.