Display Data Processing Memory Segmentation
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Solution Overview
Problem
Conventional methods for processing display data require multiple groups of memories to manage increased scanning frequencies, leading to higher memory usage and manufacturing costs due to the need for more input ports than output ports.
Innovation Solution
A method that processes display data by using two groups of DDRRAM and four groups of SRAM, where each scanning line data is stored and outputted without overlapping time periods, reducing memory usage by employing scanning lines as processing units and optimizing the use of memory types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If scanning frequency of the display is increased to improve image quality, then image quality is improved, but the amount of data memory required is doubled
Solution Approach 1:
The image data is segmented into multiple scanning line data groups, where each group corresponds to a specific time period. By dividing the image data into scanning line units and processing them sequentially rather than simultaneously, the patent reduces the memory capacity needed to store all image data at once, thereby resolving the contradiction between improved image quality and reduced memory requirements.
2Reliability
If three groups of DDRRAM are employed to process image data with more input ports than output ports, then data processing is successful, but manufacturing cost increases
Solution Approach 1:
The patent dynamically switches between two groups of DDRRAM based on the current processing stage (writing or reading). During writing operations, one group is active while the other is used for reading, and vice versa. This dynamic time-division multiplexing allows the system to function reliably with only two groups of DDRRAM instead of three, reducing manufacturing costs while maintaining data processing reliability.
3Ease of operation
If three groups of DDRRAM are used to manage input and output time periods, then data input and output are successful, but memory usage increases
Solution Approach 1:
The patent implements periodic action by alternating between two groups of DDRRAM in a cyclic manner. One group is designated for writing during a specific time period while the other group is used for reading, then they switch roles in the next period. This periodic switching enables successful data input and output operations using only two groups of DDRRAM, thereby reducing memory usage compared to the conventional three-group approach.
Data Source
AI summary
A method for processing display data includes: storing an image data in a plurality of first-type memories by taking scanning line data as a unit; providing one of the scanning line data stored in a particular memory of the first-type memories to one of a plurality of second-type memories, the particular memory being one of the first-type memories, which are not receiving and storing the image data; and outputting the scanning line data stored in the second-type memories. Time periods for outputting the scanning line data of the image data from the second-type memories are not overlapped.