E-Ink screen terminal, and doodle implementation method and apparatus thereof

An implementation method and technology of ink screen, applied in the direction of instruments, electrical digital data processing, digital output to display devices, etc., can solve the problems of handwriting follow delay, slow refresh speed of ink screen, time-consuming, etc., to achieve smooth handwriting and improve refreshment. The effect of efficiency

Inactive Publication Date: 2016-06-15
WISDOM ARK TECH CO LTD
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AI Technical Summary

Problems solved by technology

[0005] At present, many ink screen terminals are also equipped with the Android platform. However, the implementation of animation refresh on the Android platform is generally designed with the help of Android native APIs, rather than directly operating FB (FrameBuffer, frame buffer), which involves the graphics mechanism of Android, and this The mechanism is a very time-consuming operation. In addition, the refresh rate of the ink screen itself is much slower than that of the LCD screen. As a result, the graffiti / handwriting function realized by using the Android native API on the ink screen terminal based on the Android platform is unsatisfactory, and there is a significant delay in handwriting follow-up

Method used

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  • E-Ink screen terminal, and doodle implementation method and apparatus thereof
  • E-Ink screen terminal, and doodle implementation method and apparatus thereof

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Embodiment Construction

[0035] In order to illustrate the embodiments and technical solutions of the present invention more clearly, the technical solutions of the present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0036] For the convenience of description, a terminal whose display screen is an electronic ink screen is referred to as an ink screen terminal below.

[0037] In the embodiment of the present invention, the ink screen terminal is equipped with an Android system, and the system is responsible for capturing various events generated by user input and establishing corresponding mechanisms for variou...

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Abstract

The present invention discloses an E-Ink screen terminal, and a doodle implementation method and apparatus thereof. The method comprises the steps of in response to a pen down event, opening a local frame buffer FB, and adding the position corresponding to the pen down event as an initial point to the FB; simultaneously starting a drawing thread to draw connecting lines between points and points in the FB; in response to swipe events, continuing to collect positions corresponding to the swipe events, and successively adding the positions as intermediates to the FB one by one; in response to a pen up event, adding the position corresponding to the pen up event as an end point to the FB; and then finishing the drawing thread.

Description

technical field [0001] The invention relates to the technical field of electronic ink screens, in particular to an ink screen terminal and a method and device for realizing graffiti. Background technique [0002] Display screens currently used on terminals mainly include LCD, LED, and EINK (electronic ink) screens, among which electronic ink screens (hereinafter referred to as ink screens) are also called electronic paper display technologies. Electronic paper display technology (EPD for short) was successfully developed by Joseph. Jacobsen, a professor at the Massachusetts Institute of Technology, and his research and development team after more than 30 years. The structure of this paper is composed of two substrates, which are coated with an electronic ink composed of countless tiny transparent particles. The particles are formed by sealing many black and white particles that replace positive and negative charges in the internal liquid microcapsules. Different colors The ...

Claims

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Application Information

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IPC IPC(8): G06F3/14G06F3/0488
CPCG06F3/1415G06F3/04883
Inventor 赵术开李瑞
Owner WISDOM ARK TECH CO LTD
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