Under-Display Camera Gamma Control for OLED Regions
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Solution Overview
Problem
Existing methods for controlling OLED display screen regions, such as those with under-display cameras, are cumbersome and inefficient, requiring writing different data to turn on or off display areas, which does not meet practical application needs.
Innovation Solution
A display screen controlling method and apparatus that adjusts a Gamma parameter of the display region corresponding to an under-display device, using specific gamma values to turn off or on light-emitting pixels, allowing the under-display device to operate normally by switching between pre-stored gamma values based on turn-on or turn-off instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If different data is written to turn on or off display screen regions, then the under-display device can operate normally, but the operation becomes cumbersome and complex
Solution Approach 1:
The patent changes the control parameter from writing different data to adjusting gamma values. By modifying the gamma parameter of the display driver, the display region can be turned on or off efficiently. This parameter change simplifies the control operation while maintaining the reliability of under-display device operation, as the gamma adjustment directly controls the light emission intensity of the OLED pixels.
2Illumination intensity
If different data is written to control display regions, then the transparent effect can be achieved, but the process becomes time-consuming and inefficient
Solution Approach 1:
The patent uses gamma value adjustment as a control parameter to rapidly switch display regions between on and off states. This parameter-based control method is much faster than writing different data sequences, thereby improving the productivity of display region switching while maintaining the transparent effect required for under-display device operation.
Solution Approach 2:
The patent pre-configures gamma values for different display states (on/off). When switching is needed, the system simply applies the pre-determined gamma value corresponding to the desired state, eliminating the need for complex data writing processes and achieving rapid switching.
3Reliability
If the display screen region is turned off by writing different data, then the camera can operate normally, but the operation is complex and not suitable for practical applications
Solution Approach 1:
The patent simplifies the control process by using gamma parameter adjustment instead of complex data writing operations. This reduces the device complexity of the control system while ensuring the camera can operate normally through the transparent effect achieved by turning off the display pixels in the camera region.
Data Source
AI summary
A display screen controlling method and apparatus. The method includes: obtaining a first gamma value according to a turn-on instruction for an under-display device sent by an application processor; switching a gamma value of a first display region corresponding to the under-display device to the first gamma value, so as to turn off a plurality of light-emitting pixels of the first display region; obtaining a second gamma value according to a turn-off instruction for the under-display device sent by the application processor; and switching the first gamma value of the first display region to the second gamma value, so as to turn on the plurality of light-emitting pixels of the first display region.