Embedded Light Sensor in Mobile Display Panel
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Solution Overview
Problem
Existing mobile device screen assemblies require holes for light sensors, compromising the integrity, aesthetic appearance, and light detection accuracy due to limited hole sizes and distances from the display region, leading to suboptimal brightness adjustments.
Innovation Solution
Integrating a light sensor within the display region of the screen assembly, connected to a processing component via a data transmission wire, and incorporating a touch screen structure with electrodes, allowing for direct ambient light detection without holes, enhancing detection accuracy and maintaining panel strength and aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a light sensor is installed within pixels of the display screen, then the light sensor can detect ambient light for brightness adjustment, but the output of pixels having an optical sensor installed does not correspond to the output of pixels without an optical sensor installed
Solution Approach 1:
The patent applies local quality by creating different structures for different regions: pixels with optical sensors have a through-hole structure allowing light transmission, while pixels without optical sensors have a solid structure. This local differentiation enables the optical sensor to be integrated within the display screen while maintaining distinct functional characteristics for sensing versus display pixels.
Solution Approach 2:
The patent uses copying by creating a correspondence between the optical sensor output and the display pixel output. The processing component adjusts the display output of pixels with optical sensors to match the output characteristics of pixels without optical sensors, effectively copying the display pixel behavior to the sensor pixel to maintain overall display consistency.
2Measurement precision
If holes are provided on the panel for light sensors, then the light sensor can detect ambient light, but the strength and aesthetic appearance of the panel are compromised
Solution Approach 1:
The patent merges the light sensor integration with the display screen structure itself. Instead of providing separate holes through the panel, the optical sensor is installed within pixels of the display screen, combining the sensing function with the display structure. This integration eliminates the need for separate holes, thereby maintaining panel strength and aesthetic appearance while enabling ambient light detection.
3Ease of manufacture
If the light sensor is disposed at a distance from the screen assembly, then the light sensor can be installed, but the detection accuracy of ambient light condition is reduced
Solution Approach 1:
The patent applies the nested doll principle by placing the optical sensor inside the display screen structure, specifically within pixels of the display screen. This nested arrangement allows the light sensor to be positioned close to the screen assembly, improving ambient light detection accuracy while maintaining installation feasibility through the standardized pixel structure.
4Strength
If the hole size is limited for light sensor installation, then the panel structure is maintained, but the light collection angle is restricted
Solution Approach 1:
The patent transitions from a traditional hole-based light sensor installation (requiring large openings) to a pixel-based integration approach. By moving the optical sensor into the pixel structure dimension, the solution eliminates the need for large holes while providing sufficient light collection angle through the optical path designed within the pixel structure.
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 solution enables accurate ambient light detection, maintaining panel integrity and aesthetics while overcoming limitations in light collection angle, resulting in improved screen brightness adjustments and user experience.
Implementation Method 1
a light sensor, disposed within a display region of the screen assembly and capable of acquiring data about ambient light for the mobile device
Data Source
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AI summary
The present disclosure relates to a screen assembly of a mobile device and a mobile device. The screen assembly includes: a light sensor (1), disposed within a display region (10) of the screen assembly and capable of acquiring data about ambient light for the mobile device; and a data transmission wire (2), connected to the light sensor (1) at one end and a processing component (3) in the mobile device at the other end, and capable of transmitting data acquired by the light sensor (1) to the processing component (3). In the technical solution of the present disclosure, it can eliminate the need to provide a hole on the panel of the mobile device, and improve the accuracy and effectiveness of the light collection.