CN212624039U

CN212624039U - Electronic reader capable of improving handwriting delay

Info

Publication number: CN212624039U
Application number: CN202021397372.XU
Authority: CN
Inventors: 李振
Original assignee: Shanghai Moaan Intelligent Technology Co ltd
Current assignee: Shanghai Moaan Intelligent Technology Co ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-02-26
Anticipated expiration: 2030-07-15

Abstract

The application aims to provide an electronic reader capable of improving handwriting delay. The electronic reader comprises a CPU module, a time sequence control module and an electronic ink screen module, wherein the CPU module is connected with the time sequence control module, the time sequence control module is connected with the electronic ink screen module, the electronic ink screen module is connected with the CPU module, image information is transmitted from the CPU module to the time sequence control module through an MIPI (mobile industry processor interface), and touch screen coordinate information is transmitted from the electronic ink screen module to the CPU module through an I2C bus. Because the scheme adopts a new hardware architecture, the hardware processing efficiency is improved, the display delay of the electronic ink screen can be reduced, the handwriting of the electronic ink screen can be written as soon as possible, and the user experience is greatly improved.

Description

Electronic reader capable of improving handwriting delay

Technical Field

The application relates to the technical field of information, in particular to a technology for improving handwriting delay of an electronic reader.

Background

The refreshing principle of the electronic ink screen is that different arrangement combinations are formed by adding positive and negative voltages to black and white ink capsules so as to display corresponding picture information. Due to the limitation of the refresh mode and the refresh principle, in the refresh process of the electronic ink screen, a complete picture is displayed according to different refresh modes (Waveform), and the complete picture with the gray scale can be completely displayed on the ink screen only after 3-8 times of refreshing, so that the refresh rate of the electronic ink screen is about 2-8 Hz.

In a product scheme of a capacitive or electromagnetic handwriting pen, the handwriting speed of a user is usually high, the handwriting speed is limited by the refreshing efficiency of an electronic ink screen, and the writing delay feeling is usually brought to the user.

SUMMERY OF THE UTILITY MODEL

An object of the present application is to provide an electronic reader for improving handwriting delay, so as to solve the problem of display delay of an electronic ink screen.

In order to achieve the above object, an embodiment of the present application provides an electronic reader for improving handwriting delay, where the electronic reader includes a CPU module, a timing control module, and an electronic ink screen module, the CPU module is connected to the timing control module, the timing control module is connected to the electronic ink screen module, the electronic ink screen module is connected to the CPU module, where image information is transmitted to the timing control module through an MIPI interface, and touch screen coordinate information is transmitted to the CPU module through an I2C bus from the electronic ink screen module.

Optionally, the touch screen coordinate information is transmitted from the kernel layer of the CPU module to the timing control module through an I2C bus.

Optionally, the image information is transmitted from the timing control module to the electronic ink screen module through a DPI interface.

Optionally, the CPU module is connected to a power supply chip.

Optionally, the CPU module is connected to a communication chip.

In the scheme that this application embodiment provided, the electronic reader includes CPU module, sequential control module and electron ink screen module, the CPU module with sequential control module is connected, sequential control module with electron ink screen module is connected, electron ink screen module with the CPU module is connected, wherein, follows through the MIPI interface the CPU module transmits to sequential control module follows touch screen coordinate information follows through the I2C bus the electron ink screen module transmits to the CPU module. Because the scheme adopts a new hardware architecture, the hardware processing efficiency is improved, the display delay of the electronic ink screen can be reduced, the handwriting of the electronic ink screen can be written as soon as possible, and the user experience is greatly improved.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1 is a schematic diagram of an electronic reader hardware structure according to an embodiment of the present application;

FIG. 2 is a block diagram of an electronic reader hardware design architecture according to an embodiment of the present application;

fig. 3 is a schematic diagram of an overall hardware design of an electronic reader according to an embodiment of the application.

The same or similar reference numbers in the drawings identify the same or similar elements.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Fig. 1 is a schematic diagram of a hardware structure of an electronic reader according to an embodiment of the present application, where the electronic reader includes a CPU module, a timing control module, and an electronic ink screen module, the CPU module is connected to the timing control module, the timing control module is connected to the electronic ink screen module, and the electronic ink screen module is connected to the CPU module, where image information is transmitted from the CPU module to the timing control module through an MIPI interface, and touch screen coordinate information is transmitted from the electronic ink screen module to the CPU module through an I2C bus.

For example, the electronic ink screen module may include a capacitive touch screen or an electromagnetic film, and a user may perform handwriting operation through a capacitive pen or an electromagnetic pen. Specifically, the electronic ink screen module can adopt a meta-Tai electronic ink screen, utilize a bistable display technology of reflective light display, and display different contents based on the driving combination of black-white ink capsules with positive and negative charges. Because the electronic ink screen module has bistable characteristic, the content still can persist on electronic ink screen (EPD screen) after the power failure, can utilize natural reflection light to show black and white typeface content under the condition of not having in a poor light moreover, the visual injury that can very big reduction blue light brought for the user can restore the experience sense of paper writing, is favorable to protecting user's eyesight.

As shown in fig. 2, the Timing Controller (TCON) module may adopt a meta T1000 chip, and as shown in fig. 3, the CPU module may adopt an MT8766 chip. Of course, those skilled in the art should understand that the chip types shown in fig. 2 and fig. 3 are only examples, and other types of chips can be applied to the present application to obtain the same or similar technical effects, and shall also be included in the protection scope of the present application.

The image information is transmitted from the CPU module (e.g., MT8766 chip) to the timing control module (e.g., T1000 chip) through the MIPI interface, RGB image processing is performed using the MIPI interface, and then gray-scale processing may be performed on the image information using a display and scaler circuit inside the T1000 chip. When a user performs handwriting operation or touch operation on the electronic ink screen module, the touch screen coordinate information is generated, and the touch screen coordinate information is transmitted from the electronic ink screen module to the CPU module (for example, the MT8766 chip) through the I2C bus.

In some embodiments, the touch screen coordinate information is transmitted from the kernel layer of the CPU module to the timing control module through an I2C bus. For example, when the CPU module receives the touch screen coordinate information transmitted by the electronic ink screen module, the CPU module may determine, according to the touch screen coordinate information, whether the electronic reader is in a touch mode or a handwriting mode; and if the electronic reader is in a handwriting mode, transmitting the touch screen coordinate information from the kernel layer of the CPU module to the time sequence control module (such as a T1000 chip) in real time through an I2C bus, realizing quick line drawing based on a Self-drawing (Self-Draw) mode of the T1000 chip, and quickly processing and outputting the gray scale data and the handwriting data to an electronic ink screen by using a 64-level pipeline engine. Therefore, the hardware processing efficiency is greatly improved, and the display delay is reduced.

In some embodiments, the image information is transmitted from the timing control module to the electronic ink screen module through a DPI interface. For example, the CPU module transmits the picture and text data output by the GPU to the timing control module, and the timing control module performs RGB to gray scale conversion processing, and then outputs the processed data to the electronic ink screen module through a DPI interface.

The electronic ink screen module is connected with the power management chip, and the power management chip provides a positive and negative high-voltage driving power supply. For example, the gate-source voltage required by the electronic ink screen module may be supplied by the power management chip TPS 651851.

In some embodiments, as shown in fig. 2, based on a handwriting operation or a touch operation of a user, the electronic ink screen module generates the touch screen coordinate information and transmits the touch screen coordinate information to the CPU module (e.g., MT8766 chip) through an I2C bus; after receiving the touch screen coordinate information, the CPU module transmits the touch screen coordinate information to the timing control module (e.g., a T1000 chip) via an I2C bus; meanwhile, the CPU module processes the image information, and an APP layer of the CPU module performs line drawing processing on the touch screen coordinate information; the CPU module transmits the processed image information to the time sequence control module through an MIPI interface; and refreshing the image information converted into the gray scale format onto an electronic ink screen (EPD) through a DPI (deep packet inspection) interface by the timing control module.

In some embodiments, the CPU module is connected to a power chip. For example, as shown in fig. 3, the CPU module may employ an MT8766 chip, where the MT8766 chip is an ARM-based high-performance SoC processor. The power supply chip can include but is not limited to an MT6357 chip, an MT6371 chip; various power supplies (such as LDO/DCDC) required by the main chip MT8766 are provided by the MT6357, including power supplies required by peripheral LPDDR4 and eMMC, and various power supplies required by analog power supplies and digital circuits are provided for the MT8766 by using a high-precision power supply circuit in the MT 6357; the MT6371 charging power supply chip is used for providing a quick charging function circuit of 2A for the hardware of the electronic reader, the MT6371 also supports a dynamic path management charging function, and the MT6371 also can provide a front light driving function for an electronic ink screen.

In some embodiments, the CPU module is connected to a communication chip. For example, as shown in fig. 3, the CPU module may employ an MT8766 chip, and the communication chip may include, but is not limited to, an MT6177 chip and an MT6631 chip. The MT6177 is a whole-network communication intermediate frequency processing chip, can realize communication modulation and demodulation functions of different network systems such as 2G/3G/4G LTE/CDMA BC0 and the like, is externally connected with an FEM with a radio frequency of 10-17 frequency bands and realizes high-speed whole-network wireless communication; the MT6631 is a BT/WIFI/GPS multifunctional communication special chip, is connected with an MT8766 chip through IQ analog signals, and realizes the wireless connection function of BT/WIFI by using an internal baseband processing circuit of the MT 8766. Of course, those skilled in the art should understand that the chip type shown in fig. 3 is only an example, and other chip types can be applied to the present application to obtain the same or similar technical effects, and shall also be included in the protection scope of the present application.

To sum up, the electronic reader provided by the embodiment of the application uses a new hardware architecture, and can reduce the display delay of the electronic ink screen to about 40-50 ms in a handwriting mode, so that the handwriting of the electronic ink screen can be written as soon as possible, and the user experience is greatly improved.

It will be evident to those skilled in the art that the present application is not limited to the details of the foregoing illustrative embodiments, and that the present application may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned. Furthermore, it is to be understood that the term "comprises" does not exclude other elements or structures, and the singular does not exclude the plural. The terms first, second, etc. are used to denote names, but not any particular order.

Claims

1. An electronic reader for improving handwriting delay is characterized by comprising a CPU module, a time sequence control module and an electronic ink screen module, wherein the CPU module is connected with the time sequence control module, the time sequence control module is connected with the electronic ink screen module, the electronic ink screen module is connected with the CPU module, image information is transmitted to the time sequence control module from the CPU module through an MIPI (mobile industry processor interface), and touch screen coordinate information is transmitted to the CPU module from the electronic ink screen module through an I2C bus.

2. The electronic reader according to claim 1, wherein the touch screen coordinate information is transmitted from a kernel layer of the CPU module to the timing control module through an I2C bus.

3. The electronic reader of claim 1, wherein the image information is transmitted from the timing control module to the electronic ink screen module through a DPI interface.

4. The electronic reader according to any one of claims 1 to 3, wherein the CPU module is connected to a power supply chip.

5. The electronic reader according to any of claims 1 to 3, wherein said CPU module is connected to a communication chip.