Passive driving electrophoretype electronic paper device

Abstract

The invention discloses a passive driving electrophoretype electronic paper device which comprises a display medium layer, an upper substrate and a lower substrate. The upper substrate and the lower substrate are arranged oppositely, and a first electrode is formed on the upper surface of the lower substrate. The first electrode comprises a public lead electrode, a display lead electrode and a display electrode. A public electrode is formed on the lower surface of the upper substrate. The public electrode is electrically connected with the public lead electrode through a transfer printing electrode. The display lead electrode is coated by an insulating layer. A second electrode is formed on the upper face of the display electrode and the insulating layer. The display lead electrode is electrically connected with the display electrode. The display electrode is electrically connected with the second electrode. The display medium layer is contained between the public electrode and the second electrode, and the display medium layer is electrically connected with the public electrode and the second electrode. The passive driving electrophoretype electronic paper device can achieve low power consumption and high contrast ratio display, and avoid the influence of the display lead electrode included in the first electrode on display content.

Description

technical field [0001] The invention relates to an electronic paper display device, in particular to a passively driven electrophoretic electronic paper device. Background technique [0002] Because it only consumes power when the page is refreshed, and does not consume power when the display content remains unchanged and does not refresh, in the application field where the content of the display screen is not updated frequently, compared with ordinary displays, through the design of the drive mode, the electronic Paper has the characteristics of low power consumption for display; since no backlight is required, only ambient light can be used to obtain a clear display, which is another reason for low power consumption display. At the same time, due to the default of backlight, another obvious advantage is that electronic The structure of paper is extremely simple, and it is easy to make a flexible, thin and light display device. Because the electronic paper display device h...

AI Technical Summary

Problems solved by technology

Although the printed circuit board technology is relatively mature, there are still many problems to be solved in the electrophoretic electronic paper display. Due to the limitation of hole precision, it is difficult for the background electrode display to meet the high-definition pattern and complex background design; the third is that the connection method is limited, and it is not suitable for driving methods such as COG and COF, and the COG driving method is the lowest cost and the highest degree of processing automation. One of the connection methods, COF is a flexible connection method

[0006] To sum up, compared with the active drive display scheme, the passive drive electrophoretic electronic paper is more suitable for the display with a single pixel, but the high-definition pattern, low power consumption, high contrast and flexible connection mode of the passive drive method The technical solution of the invention has not been proposed, and it is impossible to learn from the active-driven electrophoretic electronic paper to realize various display contents, and it is impossible to combine the existing passive-driven or active-driven electrophoretic electronic paper. Create and manufacture passive-driven electrophoretic electronic paper with high-definition patterns, low power consumption, high contrast, and flexible connection methods. In the fields of advertisements, signs, and smart cards, there is an urgent need for high-definition patterns, high Power consumption, low cost passively driven e-paper display

Images