Electronic ink screen device applied to portable display

Abstract

The utility model relates to an electronic ink screen device applied to a portable display. The electronic ink screen device comprises a Scaler module, a picture processor module and an electronic ink screen, on the basis of a Scaler module and a picture processor module, an input video signal is received through the Scaler module, and the input video signal is cut and zoomed and then sent to the picture processor module; the image processor module carries out color space compression and color mapping processing on the sent video signal to obtain a gray-scale signal, the signal is transmitted to the electronic ink screen through an SPI interface and the like, and then the electronic ink screen displays the signal, so that the electronic ink screen device applied to the portable display can be obtained, and the industry blank is filled.

Description

Technical Field

[0001] This utility model relates to the field of portable display technology, and more specifically, to an electronic ink screen device for use in portable displays. Background Technology

[0002] Electronic ink is a revolutionary new method and technology for displaying information. Like most traditional inks, electronic ink and the circuitry that changes its color can be printed onto many surfaces, from curved plastics, polyester films, paper to fabric. The difference from traditional paper is that electronic ink changes color when electricity is applied, and can display changing images like a traditional screen.

[0003] With the rise of multi-screen operation, more and more people are choosing portable monitors as extended screens. However, most of these portable monitors currently use LCD screens, and there are no portable monitors using e-ink screens. Therefore, there is a need for an e-ink screen device for portable monitors to fill this industry gap. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an electronic ink screen device for portable displays, addressing the aforementioned deficiencies of the prior art.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] An electronic ink screen device for portable displays is constructed, comprising a scaler module, an image processor module, and an electronic ink screen; both the scaler module and the electronic ink screen are connected to the image processor module.

[0007] The Scaler module is used to receive the input video signal, crop and scale the input video signal, and then send it to the image processor module.

[0008] The image processor module is used to perform color space compression and color mapping processing on the video signal sent by the Scaler module into a grayscale signal, and then transmit the signal to the e-ink screen.

[0009] The electronic ink screen is used to receive and display grayscale signals sent by the image processor module.

[0010] The present invention relates to an electronic ink screen device for portable displays, wherein the device further includes a light sensing module and LED beads for controlling the screen brightness of the electronic ink screen, and the light sensing module is used to collect ambient light intensity and send it to the image processor module.

[0011] The image processor module is also used to control the brightness of the LED beads by emitting dynamic PWM waves based on the ambient light intensity.

[0012] The electronic ink screen device for portable displays according to this utility model further includes a touch screen module, which is used to collect user operations and feed them back to the screen processor module.

[0013] The image processor module is also used to process the image according to the user's operation and then transmit it to the e-ink screen to display new content.

[0014] The electronic ink screen device for portable displays according to this utility model further includes a gyroscope module, which is used to capture instruction information and send it to the screen processor module.

[0015] The screen processor module is also used to control the refresh operation of the e-ink screen based on instruction information and user-defined instruction set modules.

[0016] The present invention relates to an electronic ink screen device for portable displays, wherein the device further includes a battery module for supplying power to the entire electronic ink screen device.

[0017] The present invention relates to an electronic ink screen device for portable displays, wherein the device further includes a Wi-Fi module connected to the Scaler module for wirelessly receiving input video streams.

[0018] The electronic ink screen device for portable displays described in this utility model further includes a memory unit for caching data for the Scaler module and the screen processor module.

[0019] The beneficial effects of this utility model are as follows: This application is based on a Scaler module and a screen processor module. The Scaler module receives the input video signal, and after cropping and scaling the input video signal, it sends it to the screen processor module. The screen processor module performs color space compression and color mapping processing on the sent video signal to convert it into a grayscale signal. The signal is then transmitted to the e-ink screen through interfaces such as SPI, and then displayed by the e-ink screen. This results in an e-ink screen device for portable displays, filling this industry gap. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a block diagram illustrating the principle of an electronic ink screen device for portable displays, according to a preferred embodiment of the present invention.

[0022] Figure 2 This is a circuit diagram of a scaler module for an electronic ink screen device applied to a portable display, according to a preferred embodiment of the present invention.

[0023] Figure 3 This is a circuit diagram of the screen processor module of an electronic ink screen device for portable displays, according to a preferred embodiment of the present invention.

[0024] Figure 4 This is a circuit diagram of the optical sensing module of an electronic ink screen device for portable displays, according to a preferred embodiment of the present invention.

[0025] Figure 5 This is a circuit diagram of the gyroscope module of an electronic ink screen device for portable displays, which is a preferred embodiment of this utility model. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, of the embodiments of this utility model. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] The preferred embodiment of this utility model is an electronic ink screen device applied to a portable display, such as... Figure 1 As shown, see also Figures 2-5 It includes a Scaler module 1, a screen processor module 2, and an e-ink screen 3; both the Scaler module 1 and the e-ink screen 3 are connected to the screen processor module 2.

[0028] Scaler module 1 is used to receive the input video signal, crop and scale the input video signal and then send it to the image processor module;

[0029] The image processor module 2 is used to perform color space compression and color mapping processing on the video signal sent by the Scaler module into a grayscale signal, and then transmit the signal to the e-ink screen.

[0030] The e-ink screen 3 is used to receive and display grayscale signals sent by the image processor module;

[0031] This application is based on a Scaler module and a screen processor module. The Scaler module receives the input video signal, crops and scales the input video signal, and then sends it to the screen processor module. The screen processor module performs color space compression and color mapping on the sent video signal to convert it into a grayscale signal. The signal is then transmitted to the e-ink screen through interfaces such as SPI, and then displayed on the e-ink screen. This results in an e-ink screen device for portable displays, filling a gap in the industry.

[0032] Preferably, to enrich its functionality, the device may also include one or more of the following: a light sensor module 4, a touch screen module 5, a gyroscope module 6, a battery module 7, a Wi-Fi module 8, and a memory unit 9;

[0033] The specific explanation is as follows:

[0034] 1. Scaler module 1

[0035] When using wired input, the input interface can be a common interface on the market such as HDMI, DP, Type-C, VGA, or USB, with Type-C being a full-featured cable. The signal source is connected to the Scaler module via the HDMI, DP, Type-C, VGA, or USB interface. The Scaler module 1 decodes the input video signal using H.264 or H.265 and writes it to DDR (which can use the aforementioned memory unit or an independent buffer space). Then, it reads and writes to the DDR to complete the video signal cropping, scaling, and H.264 / H.265 encoding into the encoding format of the output interface, which is then output to the image processor module for processing.

[0036] When wireless screen projection is performed, the source and sink ends are connected to the same Wi-Fi module 8. The sink end receives the video stream from the source end through DLNA, AirPlay, and Miracast technologies, decodes it through H.264 and H.265, and then processes it through the Scaler module and the screen processor module before sending the signal to the e-ink screen via SPI.

[0037] Battery module 7 is connected to scaler module 1, which can either power the system independently or charge the battery via Type-C.

[0038] Additionally, OSD menu functionality can be implemented on Scaler module 1;

[0039] The preferred model of the scaler module is RTD2556VD / RTD2555T. Of course, this model is only an example and is not intended to limit. Those skilled in the art can use other existing chip models with the same function to replace it. The solution obtained by simply replacing this model also falls within the protection scope of this application.

[0040] 2. Image Processor Module 2

[0041] When no touch occurs, the video signal transmitted from the Scaler is first processed into a grayscale signal by color space compression and color mapping, and finally transmitted to the e-ink screen through interfaces such as SPI.

[0042] When using the light sensor module 4, the light sensor module 4 collects the ambient light intensity and uses technologies such as dynamic PWM to automatically adjust the brightness of the LED beads, thereby automatically adjusting the screen brightness.

[0043] When a touch event occurs, the touch screen module 5 captures touch coordinates and touch type (such as single click, double click, swipe, etc.) through changes in capacitance, and then sends the instruction to the screen processor module 2. The screen processor module 2 obtains the instruction type by decoding the instruction, and determines whether it is a global refresh or a partial refresh by querying the user-defined instruction set module. The refresh result is stored in DDR, and then the DDR cache content is read out and transmitted to the e-ink screen through interfaces such as SPI.

[0044] When rotation occurs, the gyroscope module 6 calculates parameters such as angular velocity, yaw angle, pitch angle, roll angle, and Y-yaw angle through internal algorithms and transmits them to the image processor module. The image processor module processes the input parameters and calculates whether they reach the threshold of 90° / 180° / 270° image rotation. If they do, the image is temporarily stored in DDR. After reading and writing to DDR to reassemble the pixels, it is output to the e-ink screen via SPI, thus achieving 90° / 180° / 270° image rotation.

[0045] Meanwhile, the image processor module can be set to a timed global refresh mode, such as 10 minutes or 30 minutes, to avoid ghosting due to prolonged periods without a global refresh.

[0046] The preferred model of the image processor module is SF1S60. Of course, this model is only an example and is not intended to limit the scope. Those skilled in the art can use other existing chip models with the same function to replace it. The solution obtained by simply replacing the model is also within the scope of protection of this application.

[0047] 3. Display module

[0048] The display module consists of an e-ink screen 3 and a touch screen module 5. It uses touch technology to provide feedback on user operations to the image processor module 2. The image processor module 2 processes the new image and sends it to the e-ink screen to display the new content.

[0049] It should be noted that the functions involved in the above modules of this application are all functions that the modules themselves have, and do not involve software improvements, and are subject to utility model protection.

[0050] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. An electronic ink screen device for use in portable displays, characterized in that, It includes a Scaler module, a screen processor module, and an e-ink display; both the Scaler module and the e-ink display are connected to the screen processor module. The Scaler module is used to receive the input video signal, crop and scale the input video signal, and then send it to the image processor module. The image processor module is used to perform color space compression and color mapping processing on the video signal sent by the Scaler module into a grayscale signal, and then transmit the signal to the e-ink screen. The electronic ink screen is used to receive and display grayscale signals sent by the image processor module.

2. The electronic ink screen device for portable displays according to claim 1, characterized in that, The device also includes a light-sensing module and LED beads for controlling the screen brightness of the e-ink screen. The light-sensing module is used to collect ambient light intensity and send it to the image processor module. The image processor module is also used to control the brightness of the LED beads by emitting dynamic PWM waves based on the ambient light intensity.

3. The electronic ink screen device for portable displays according to claim 1, characterized in that, The device also includes a touch screen module, which is used to collect user operations and feed them back to the screen processor module; The image processor module is also used to process the image according to the user's operation and then transmit it to the e-ink screen to display new content.

4. The electronic ink screen device for portable displays according to claim 1, characterized in that, The device also includes a gyroscope module, which is used to capture command information and send it to the screen processor module; The screen processor module is also used to control the refresh operation of the e-ink screen based on instruction information and user-defined instruction set modules.

5. The electronic ink screen device for portable displays according to claim 1, characterized in that, The device also includes a battery module for powering the entire e-ink screen device.

6. The electronic ink screen device for portable displays according to claim 1, characterized in that, The device also includes a Wi-Fi module connected to the Scaler module for wirelessly receiving input video streams.

7. The electronic ink screen device for portable displays according to claim 1, characterized in that, The device also includes a memory unit for caching data for the Scaler module and the screen processor module.

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