Zframe HDR Display Transition with Multi-Frame SDR Switching
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Solution Overview
Problem
The transition from SDR to HDR image display often results in visual artifacts such as jumps or flickers due to the significant difference in visual effects between SDR and HDR images, degrading the user experience.
Innovation Solution
A method involving obtaining HDR frame data from SDR data through dynamic range expansion, calculating differences in picture parameters, and performing multi-frame switching to smoothly transition the display, using a display driver module to adjust the HDR effect in multiple frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If one-frame switching is used to transition from SDR to HDR display, then switching speed is improved, but visual smoothness deteriorates causing jump or flicker
Solution Approach 1:
The patent divides the single-frame switching process into multiple sub-frames, where each sub-frame applies a different blending ratio between SDR and HDR images. This segmentation allows the transition to be broken down into gradual steps rather than a single abrupt change, thereby maintaining visual smoothness while still achieving relatively fast switching.
Solution Approach 2:
The patent dynamically adjusts the blending ratio between SDR and HDR images across different sub-frames. Instead of using a fixed transition method, the system varies the proportion of SDR and HDR content in each sub-frame to create a smooth visual transition, making the switching process adaptive and continuous rather than static and abrupt.
2Stability of the object's composition
If multi-frame switching is used to transition from SDR to HDR display, then visual smoothness is improved, but switching time increases
Solution Approach 1:
The patent applies partial action by using only the necessary number of sub-frames to achieve smooth transition, rather than extending the transition indefinitely. The system determines an optimal number of sub-frames that provides sufficient visual smoothness without unnecessarily prolonging the switching time, thus balancing smoothness and speed.
Solution Approach 2:
The patent implements periodic action by using a fixed number of sub-frames with predetermined blending ratios for the transition process. This periodic structure allows the system to complete the transition in a predictable time frame while maintaining smoothness, as each sub-frame follows a regular pattern of blending ratio adjustment.
3Manufacturing precision
If HDR display is activated in all scenarios, then display quality is improved, but energy consumption increases
Solution Approach 1:
The patent applies local quality by activating HDR display only in specific scenarios or regions where it is most beneficial, rather than uniformly across the entire display. The system can selectively apply HDR to certain areas or conditions, thereby maintaining high display quality where needed while reducing energy consumption in other areas or scenarios.
Solution Approach 2:
The patent changes the display mode parameter dynamically based on scenario requirements. Instead of maintaining HDR mode continuously, the system switches between SDR and HDR modes according to the specific display scenario, thereby optimizing the balance between display quality and energy consumption by adjusting the operating parameter (display mode) to match the actual needs.
Data Source
AI summary
A method includes: obtaining HDR frame data of SDR frame data in response to an operation instruction generated by switching of a frame data display scenario; obtaining picture parameters of the SDR frame data and the HDR frame data; calculating a difference between the picture parameter of the SDR frame data and the picture parameter of the HDR frame data; determining a switching amplitude of an HDR display effect, a quantity of switching times, and a quantity of frames for each time of switching of the HDR display effect based on the difference; and performing multi-frame switching to display the SDR frame data as the HDR frame data through transition based on the switching amplitude of the HDR display effect, the quantity of switching times, and the quantity of frames for each time of switching of the HDR display effect.