Mini LED Pixel Driving Chip Layout for Lower-Power Local Dimming
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Solution Overview
Problem
Mini LED display apparatuses using passive matrix driving methods consume a large amount of power, which is inefficient and increases costs.
Innovation Solution
A display panel with a pixel array and pixel driving chips, where multiple pixels are connected to a common driving chip, reducing the number of signal lines and enabling an active matrix driving method to lower power consumption and production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If passive matrix driving method is used for mini LED display, then local dimming detail is improved, but power consumption increases
Solution Approach 1:
The patent segments the display into pixel groups, where each pixel group is driven by a dedicated pixel driving chip. This segmentation enables active matrix driving method to be implemented, which significantly reduces power consumption while maintaining the local dimming capability. Each pixel driving chip independently controls its associated pixel group, allowing for precise local dimming without the high power consumption of traditional passive matrix driving.
2Use of energy by moving object
If active matrix driving method is implemented, then power consumption is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent implements active matrix driving by segmenting the display into multiple pixel groups, each driven by its own pixel driving chip. This segmentation approach reduces power consumption by enabling more efficient driving methodology. The manufacturing process is made manageable through this modular segmentation, as each pixel driving chip can be manufactured and tested independently before being assembled with its corresponding pixel group, thereby reducing overall manufacturing complexity despite the increased number of components.
Data Source
AI summary
The present disclosure provides a display apparatus, a display panel, and a method of driving a display panel. The display panel includes: a base substrate; a pixel array disposed on the base substrate, and including one or more pixel groups each of which includes a plurality of pixels; and a plurality of pixel driving chips disposed on the base substrate and configured to drive the pixel array to display, each of the pixel driving chips including a data signal terminal for receiving data signals and a control signal terminal, where for each of the pixel groups, the plurality of pixels in the pixel group are connected to a common pixel driving chip. A display frame of the display panel includes an address assignment stage and a data signal transmission stage. The method includes: inputting the control signal to the control signal terminal and inputting a first data signal to the data signal terminal in the address assignment stage; and inputting a second data signal to the data signal terminal in the data signal transmission stage. The present disclosure can reduce the number of signal lines and reduce power consumption.