Electrophoresis type electronic paper device for optimizing time display and driving method thereof

Abstract

The invention discloses an electrophoresis type electronic paper device for optimizing time display and a driving method thereof, and belongs to the technical field of electronic paper. The electrophoresis type electronic paper device comprises an electrophoresis type electronic paper display screen and a driving control chip. A driving waveform for time refreshing is stored in the driving controlchip, and the display mode of the electrophoresis type electronic paper display screen can be driven to be switched between a full refreshing mode and a local refreshing mode. A picture is displayedonce in a full refreshing mode every a period of time. According to the electronic paper time display device, the technical problem of display contrast reduction caused by local refreshing imbalance can be solved, meanwhile, the problem of contrast reduction caused by local refreshing imbalance of the electronic paper time display device is solved, the display modes of the electronic paper time display device are enriched, and the electronic paper time display device is more personalized and beneficial to application of electronic paper in the field of time display.

Description

technical field [0001] The invention relates to the technical field of electronic paper, in particular to an electrophoretic electronic paper device for optimizing time display and a driving method for improving contrast. Background technique [0002] Electrophoretic electronic paper, with its advantages of high contrast ratio, wide viewing angle and low power consumption, has attracted widespread attention since it came out; it has been widely used in fields such as e-book products, electronic price tag products, wearable devices, decoration and advertising. [0003] However, due to the characteristics of e-paper itself, compared with LCD, there are great defects in the application in some fields. Display particles need to be guaranteed during the display process: positive voltage * action time = negative voltage * action time, otherwise, under long-term unbalanced waveforms, the electronic paper display particles will be polarized, causing damage to the electronic paper an...

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Problems solved by technology

[0003] However, due to the characteristics of e-paper itself, compared with LCD, there are great defects in the application in some fields. The display particles need to be guaranteed during the display process: positive voltage * action time = negative voltage * action time, otherwise, under the long-term unbalanced waveform, the electronic paper display particles will be polarized, causing damage to the electronic paper and affecting the display effect

[0004] However, in order to meet the waveform balance, it is necessary to add waveforms for balancing the changing numbers to the time display segment that needs to be changed when the electronic paper displays the time. time, increases the power consumption of the drive, and affects the actual observation effect of the client on the product, which is not conducive to the promotion and application of electronic paper in the field of time display

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