Backlight Brightness Curve Adjustment via BIOS
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Solution Overview
Problem
Current handheld devices lack user-adjustable backlight intensity settings, which are often set initially based on ambient light and cannot be changed by users, causing inconvenience.
Innovation Solution
An electronic display device with a backlight module, light sensor, storage device, and embedded controller that allows users to adjust backlight intensity through a brightness curve diagram during the boot process, using a basic input/output system to draw and update a brightness table based on ambient light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If backlight intensity is automatically set based on ambient light, then the display device can adapt to lighting conditions, but users cannot adjust the backlight brightness values themselves
Solution Approach 1:
The patent implements dynamic adjustability by allowing users to modify the brightness curve during the boot process. The brightness table can be dynamically edited through the BIOS setup menu, enabling users to change backlight intensity values for different ambient light levels while maintaining the automatic adaptation framework.
Solution Approach 2:
The patent changes the parameter of backlight brightness values by allowing user modification of the brightness table. Users can adjust the correspondence between ambient light detected by the light sensor and the resulting backlight intensity, thereby customizing the adaptation behavior to their preferences.
2Productivity
If backlight intensity is fixed during boot process, then the system can complete initialization quickly, but users cannot adjust brightness settings before using the device
Solution Approach 1:
The patent performs preliminary action by providing the brightness curve adjustment interface during the boot process before the operating system fully loads. Users can adjust backlight settings in the BIOS setup menu during boot, and these settings are then applied when the device starts up, eliminating the need for post-boot configuration.
3Ease of operation
If a brightness curve diagram is provided for user adjustment, then users can customize backlight settings, but the device complexity increases due to additional software functions
Solution Approach 1:
The patent applies universality by integrating the brightness curve adjustment functionality into the existing BIOS setup menu. The same boot process and BIOS framework that handle other system configurations now also support backlight brightness customization, thereby adding the new function without requiring a completely separate software system.
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 backlight intensity settings during the boot process, improving user convenience by allowing dynamic adjustments based on ambient light levels.
Implementation Method 1
The light sensor is arranged to detect ambient light surrounding the electronic display device
Data Source
AI summary
The present disclosure provides an electronic display device including a backlight module, a light sensor, a storage device, an embedded controller, and a processing unit. The light sensor detects ambient light surrounding the electronic display device. The embedded controller controls intensity of the backlight module according to the ambient light and a brightness table of the storage device. The processing unit performs a basic input/output system to draw a brightness curve diagram according to the brightness table for users to adjust the curve of the brightness curve diagram during a boot process of the electronic display device and update the brightness table in the storage device according to the adjusted brightness curve diagram in response to a storing signal.