Watch Display Color Sampling Sensor
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Solution Overview
Problem
Users of electronic devices with displays face limitations in customizing the color scheme, as the preset palettes often do not match their clothing or watch bands, failing to meet their aesthetic preferences.
Innovation Solution
Incorporating a light sensor and control circuitry in electronic devices that measure the color of external objects by emitting light and detecting reflectance, using algorithms to determine the color of watch bands and clothing, and displaying a matching color on the device's display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a preset palette of colors is provided for display customization, then the device complexity is reduced and ease of operation is improved, but the adaptability to match user's clothing or watch band is limited
Solution Approach 1:
The display serves multiple functions: it displays information to the user and simultaneously acts as a light source for color sampling. The light sensor also serves dual purposes by detecting ambient light and measuring color reflectance. This multi-functionality enables color matching capability without adding separate dedicated components for each function.
Solution Approach 2:
The device uses its own display to illuminate the object being sampled, eliminating the need for external light sources. The system is self-contained, using internal components (display pixels as light source, light sensor as detector) to perform color measurement, reducing the need for additional external accessories or complex illumination systems.
2Adaptability or versatility
If a light sensor and control circuitry are added to measure external object colors, then the adaptability and color matching capability are improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The color sampling functionality is merged with the existing display and sensor infrastructure. The display pixels are used as light sources for illumination, and the light sensor is used for both ambient light detection and color measurement. This merging of functions reduces the need for separate manufacturing processes and component assembly steps.
Solution Approach 2:
Existing components are designed to serve multiple purposes. The display serves both as an information output device and as an illumination source. The light sensor serves both as an ambient light detector and as a color measurement device. This multi-functionality reduces component count and simplifies manufacturing.
3Measurement precision
If the display emits light sequences for color sampling, then the measurement precision of external object color is improved, but the energy consumption and duration of operation increase
Solution Approach 1:
The display emits light in periodic sequences of different colors (red, green, blue) rather than continuous illumination. This periodic emission allows the light sensor to measure reflectance at discrete intervals for each color channel, achieving sufficient measurement precision while minimizing total energy consumption compared to continuous full-color illumination.
Solution Approach 2:
The system uses sequential activation of individual color channels (red, green, blue) rather than simultaneous full-color emission. This partial action approach achieves the necessary measurement precision by sampling each color component separately, reducing overall energy consumption compared to emitting all colors continuously at full intensity.
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
Enables users to customize the display color to match their watch bands or clothing, enhancing aesthetic appeal by accurately determining and replicating external object colors.
Implementation Method 1
the display may emit light towards the external object in front of the display while the light sensor gathers color measurements
Data Source
AI summary
An electronic device such as a watch may include a display and a light sensor located behind the display. The light sensor may be used to measure the color of external objects. During color sampling operations, the display may emit light towards the external object in front of the display while the light sensor gathers color measurements. The display may emit light of different colors and the light sensor may detect an amount of reflected light for each color, which in turn may be used to determine the color of the external object. The control circuitry may use a watch-band-specific algorithm to determine the color of watch bands and may use a clothing-specific algorithm to determine the color of clothing. The control circuitry may display the color on the display so that the face of the watch matches the user's clothing or matches the user's watch band.