Panel Control Apparatus Memory Sharing for Over Driving and Self Refresh
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Solution Overview
Problem
Existing panel control apparatuses face challenges in integrating over driving and panel self refresh techniques, leading to increased memory usage and manufacturing costs due to the need for different image compression methods at different timings.
Innovation Solution
A panel control apparatus and method that selectively switches between over driving and panel self refresh techniques based on the state of the display frame, using the same memory to store display data under different compression techniques, thereby reducing the volume and manufacturing cost.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If both over driving and panel self refresh techniques are integrated with different image compression methods, then the required functions are achieved, but the memory space increases and manufacturing cost rises
Solution Approach 1:
The patent merges the memory resources of over driving and panel self refresh techniques into a single shared memory structure. The timing controller determines which compression method to apply based on the display frame state, and both techniques access the same memory for storing compression data, thereby eliminating the need for separate memory spaces and reducing overall memory requirements.
Solution Approach 2:
The single memory structure serves multiple functions by storing compression data for both over driving and panel self refresh techniques. The timing controller universally manages this memory by selecting the appropriate compression method based on display frame analysis, making the memory resource versatile and adaptable to different operating conditions.
2Adaptability or versatility
If both over driving and panel self refresh techniques are integrated with different image compression methods, then the required functions are achieved, but the volume of the panel control apparatus increases
Solution Approach 1:
The patent combines the memory components of both techniques into a single shared memory structure within the timing controller. This merging eliminates redundant memory spaces and reduces the overall physical volume of the panel control apparatus while maintaining the functionality of both over driving and panel self refresh techniques.
3Adaptability or versatility
If different image compression techniques are used for over driving and panel self refresh, then the specific functions are optimized, but the device complexity increases
Solution Approach 1:
The timing controller dynamically selects between over driving and panel self refresh compression methods based on real-time analysis of display frame states. This dynamic switching mechanism allows the system to optimize performance for specific functions while managing complexity through intelligent control rather than requiring separate dedicated paths for each technique.
Solution Approach 2:
The scalar performs preliminary analysis of the display frame state before the timing controller needs to select a compression method. By pre-determining whether the frame is static or dynamic, the system can prepare the appropriate compression data in advance, reducing the complexity of real-time decision-making and streamlining the overall control process.
Data Source
AI summary
A panel control apparatus and an operating method thereof are provided, and which includes a scalar and a timing controller. The scalar transmits a present display data for composing a display frame, and determines whether to generate a refresh request signal according to a state of the display frame. The timing controller includes a memory, an over driving unit and a panel self refresh unit. When the refresh request signal is not generated, the over driving unit converts the present display data into an over driving display data according to a previous compression data from the memory. When the refresh request signal is generated, the panel self refresh unit compresses the present display data into a refresh display data, and stores the refresh display data into the memory.