Method cpable of lowering power consumption for driving display

Abstract

The present invention is a display driving method capable of reducing power consumption. It utilizes a control module to determine the driving order of the scanning lines of a display panel instead of scanning one by one. The control module includes a memory capable of temporarily storing display data and a Connect the logic operation unit of the memory, use the logic operation unit to take the grayscale image data of a current conduction row as the reference row, compare the reference row with the n columns of grayscale image data temporarily stored in the memory to be scanned, and select The sequence with the smallest total gray scale difference is set as the next conduction column, so that the first and last two conduction columns can reduce power consumption because of the minimum gray scale change.

Description

technical field [0001] The invention is a scanning method applied to a display driving device, especially a method of determining the scanning sequence according to the gray scale difference of image data to reduce power consumption. Background technique [0002] Such as figure 2 As shown, it is a schematic diagram of a conventional thin display driving method. The thin panel 50 is generally controlled by a row of driving modules 62 and a column of driving modules 64. The row driving module 62 is connected to a plurality of data lines 63, and the column driving module 64 Then, a plurality of scanning lines 65 are provided. Wherein, the thin panel 50 is formed with multiple pixels, and each pixel 51 corresponds to a crossing position between a data line 63 and a scan line 65 . [0003] When controlling the thin panel 50 to output images, the aforementioned column driver module 64 sends scanning signals to the scanning lines 65 in sequence, and each pixel 51 on the same colu...

AI Technical Summary

Problems solved by technology

[0004] With the advent of high-resolution thin displays, it means that the number of pixels 51 on the thin panel 50 is relatively increased. Therefore, under the condition that the frame update frequency remains unchanged, the conduction time allocated to each scanning line 65 is relatively shortened. In such a short period of time, it is difficult for each pixel 51 to fully charge / discharge, and the impact on the image quality is that the contrast ratio is greatly reduced.

Furthermore, another factor that must be considered for the thin panel 50 is power consumption.

As mentioned above, the conventional column driver unit 60 outputs scan signals to these scan lines 65 sequentially from the beginning to the end, so when the pixels 51 on two adjacent scan lines 65 have huge grayscale changes, due to extreme The power consumption problem caused by charging / discharging action is more obvious

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