CN112002260A - Touch electronic paper display device - Google Patents
Touch electronic paper display device Download PDFInfo
- Publication number
- CN112002260A CN112002260A CN201910446172.4A CN201910446172A CN112002260A CN 112002260 A CN112002260 A CN 112002260A CN 201910446172 A CN201910446172 A CN 201910446172A CN 112002260 A CN112002260 A CN 112002260A
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- China
- Prior art keywords
- electronic paper
- paper display
- display
- touch
- touch sensor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
- G09F9/372—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by the application of an electric field
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention discloses a touch control type electronic paper display device which is connected to an electronic device with an image processing unit for use, and the touch control type electronic paper display device mainly comprises an electronic paper display, a transparent touch sensor and a virtual display unit, wherein the virtual display unit is used for providing signals detected by the electronic device through HPD and EDID, so that the image processing unit can still normally work under the condition that a solid LCM is not installed, providing image signals and driving the electronic paper display to display images, the transparent touch sensor is arranged on the display surface of the electronic paper display and is used as an input device matched with the image images displayed by the electronic paper display, and a user can carry out interactive operation through the transparent touch sensor and the image images provided by the electronic paper display.
Description
Technical Field
The present invention relates to an electronic paper display and a touch sensor, and more particularly, to a touch-control electronic paper display apparatus that can be independently used in connection with an electronic device having an image processing unit.
Background
Currently, most electronic devices utilize a Liquid Crystal Display (LCM) to realize an image Display function, and the LCM is usually connected to an image processing unit of the electronic device through an image signal transmission Interface such as a High-resolution Multimedia Interface (HDMI), a Video Graphics Array (VGA), a Digital Video Interface (DVI), and a Display Port (DP) to obtain an image signal.
As shown in fig. 2, taking the LCM connected to a Personal Computer (PC) via HDMI as an example, under the architecture of the current PC operating system, such as win7/win8/win10 of microsoft corporation, the video signal transmission operation flow between the LCM and the PC is mainly the following three steps:
the first step is to execute Hot Plug Detection (HPD) of LCM as the basis for whether PC sends video signal through HDMI; when the PC is connected with the LCM through the HDMI, the PC supplies + 5V voltage to a memory of a Display Data Channel (DDC) of the LCM through an 18 th PIN (PWR _ CON _ PIN 18) of the HDMI, namely an Extended Display Identification Data (EDID) memory, so that the PC can read the Data of the EDID through the HDMI even if the LCM is not started; if the LCM detects a stable 5V voltage signal, the HPD signal is pulled up, wherein the HPD is also generated by the PC through the 5V signal of the 18 pins of the HDMI, namely the HPD signal is pulled up under the condition that the LCM is powered off; therefore, when a Graphics Processing Unit (GPU) of the PC detects that the HPD is at a high level, it can be confirmed that the LCM is connected to the PC through the HDMI.
The second step is to read the EDID of the LCM to detect whether the working mode range of the LCM is suitable for the GPU; after detecting and confirming that the LCM is connected with the computer system through the HDMI by the detection of the HPD, the PC further reads data of EDID in the LCM through DDC channels of pins 15 and 16 of the HDMI, namely an Inter-Integrated Circuit Bus (hereinafter referred to as I C Bus), and determines whether the operating mode range of the LCM is suitable for the GPU.
And step three, if the working mode range of the LCM is matched with the GPU, enabling a TMDS signal transmitting circuit in the GPU to start working (according to the TMDS Minimized transmission Differential signal, which is an abbreviation of Transition Minimized Differential Signaling), and transmitting required picture signals to the LCM so as to drive the LCM to operate.
In addition, an electronic Paper Display (E-Paper Display, hereinafter referred to as E-Paper) which is rapidly developed in recent years has been widely used in combination with electronic devices because of its characteristics of simulating Paper such as flexibility, wide viewing angle, light weight, high resolution, high contrast, indoor and outdoor readability, and low power consumption, but compared with a conventional CRT or LCD Display screen, the E-Paper Display has a slow image update speed, usually the screen refresh speed is mostly below 30 frames per second, so that most of the electronic Paper displays currently can only be used in combination with an electronic device having an LCM as an accessory device (e.g., an electronic book reading device, a handwritten note, an electronic blackboard, an intelligent mark, etc.), and the E-Paper Display cannot replace the conventional Display LCM; a conventional E-Paper is connected to a PC through a transmission interface such as a Universal Serial Bus (USB) to obtain an image signal, and when the GPU of the PC transmits the image signal to the LCM, the image signal required by the E-Paper is captured, and then the image signal is transmitted to a Timing Controller Board (TCB) of the E-Paper through the USB to drive the E-Paper to display the captured image. As shown in fig. 2, some current applications are to arrange a Touch sensor (Touch panel) on the display surface of the E-Paper as an input device, so that a user can perform an interactive operation with the image frame of the E-Paper through the Touch sensor.
However, as described above, according to the operation flow of the video signal transmission between the LCM and the PC, the GPU must first pass the HPD and EDID detection before the LCM transmits the video signal, i.e. the current application must connect the LCM to the PC to capture the video frame signal of the LCM and transmit the signal to the E-Pape for display; therefore, the PC cannot directly play the image picture by using the E-Pape through the USB connection without installing the LCM, and as a result, the application of the E-Pape is severely limited.
Disclosure of Invention
In view of the foregoing disadvantages of the electronic paper display, the present invention provides an improved touch display device, which is an electronic paper display with touch input performance, and allows a user to interact with a display screen of the electronic paper display, and when the touch display device is used in an image display operation framework of a conventional electronic device, the electronic paper display can normally play an image of a GPU without an LCM of an installation entity, thereby eliminating the limitation that the electronic device must install the LCM to use the electronic paper display, so that the electronic paper display application can be expanded, and the device cost can be saved.
In order to achieve the above object, the touch electronic paper display apparatus provided by the present invention is connected to an electronic device having an image processing unit, and mainly comprises an electronic paper display, a transparent touch sensor and a virtual display unit, wherein the electronic paper display is connected to the electronic device through a first signal transmission interface, receives an image signal provided by the electronic device and displays the image signal as an image frame; the transparent touch sensor is connected to the electronic device through a second signal transmission interface, is arranged on the display surface of the electronic paper display and is used as an input device matched with the image picture of the electronic paper display; the virtual display unit is connected to the electronic device through a third signal transmission interface, provides a signal detected by the electronic device through HPD and EDID by utilizing the virtual display unit, drives the image processing unit to normally work under the condition that an entity LCM is not installed, provides an image signal and drives the electronic paper display to display an image, so that the touch control type electronic paper display equipment can be independently matched with the electronic device with a common current image display framework for use, is provided with a touch sensor which can enable a user to interact with a display screen picture, and forms a friendly use interface convenient for man-machine interaction.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following or may be learned from the practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a conventional electronic paper display and a touch sensor connected to an electronic device.
Symbolic illustration in the drawings:
10 an electronic paper display; 11 electrophoretic display timing controller; 12 a signal transmission interface; 20 a touch sensor; 22 a signal transmission interface; 30 a virtual display unit; 32 video and audio signal transmission interface; 90 an electronic device; 91 an image processing unit.
Detailed Description
FIG. 1 is a schematic diagram illustrating a touch-controlled electronic paper display apparatus according to an embodiment of the present invention, which includes an electronic paper display 10, a touch sensor 20, and a virtual display unit 30; the touch-control electronic paper display device is connected to an electronic device 90 with an image processing unit 91 for use, the electronic device 90 has an image display function, and is selected from a computer, a workstation, a game machine or a server, and the like, but the implementation scope is not limited by the above categories; the image Processing Unit 91 has a Graphics Processing Unit (GPU), and can perform a Graphics operation on the electronic device and provide an image signal required by the display.
The electronic paper Display 10 is a reflective Display with low power consumption and flexibility, and displays image signals on a Display surface of the electronic paper Display as image frames by using an electrophoretic technology or a cholesteric liquid crystal technology, and an electronic paper Display of an electrophoretic technology (EPD) is exemplified in the embodiments described below; the electronic paper display 10 has an electrophoretic display timing controller (EPD timing controller)11, which can be connected to the electronic device 90 through a signal transmission interface 12; the signal transmission interface 12 is selected from a Universal Serial Bus (USB), a Universal Asynchronous Receiver Transmitter (UART), a General Purpose input/output (GPIO), and the like, but the implementation range is not limited to the aforementioned types; in the embodiments described below, the electronic device 90 is illustrated using a Personal Computer (PC) as an example.
The touch sensor 20 is connected to the electronic device 90 through a signal transmission interface 22; the touch sensor 20 is selected from a capacitive touch sensor, a resistive touch sensor, an electromagnetic touch sensor, an acoustic wave touch sensor, a vibration wave touch sensor, an optical touch sensor, an in-cell touch sensor, and the like, but the scope of implementation is not limited to the above types; the signal transmission interface 22 is selected from USB, UART or GPIO, etc., but the implementation range is not limited by the aforementioned categories; the touch sensor 20 is a transparent thin layer with the same area specification as the electronic paper display 10, and is disposed on the display surface of the electronic paper display 10 to serve as an input device for matching the image displayed by the electronic paper display 10, so that a user can perform an interactive operation with the image provided by the electronic paper display 10 through the touch sensor 20, thereby forming a friendly interface for human-computer interaction.
The virtual display unit 30 is connected to the electronic device 90 through an audio/video signal transmission interface 32, the audio/video signal transmission interface 32 is selected from a high-definition multimedia interface (HDMI), a Video Graphics Array (VGA), a Digital Video Interface (DVI), or an audio/video transmission line/Display Port (DP), but the implementation range is not limited to the aforementioned types; the virtual display unit 30 can provide the electronic device 90 with a signal detected by HPD, wherein, for example, the inserted detection signal is provided to the Hot plug detection pin (Hot plug detection pin) of the audio/video signal transmission interface such as HDMI, DVI, DP, etc., and EDID data suitable for the image processing unit 91 of the electronic device is provided, so as to drive the image processing unit 91 to start normal image processing, and provide the image signal to the electrophoretic display timing controller 11, so as to drive the electronic paper display 10 to display the image.
According to the touch electronic paper display device described above, when it is connected to an electronic device 90 having an image processing unit 91 for use, the virtual display unit 30 can be used to provide signals detected by the electronic device 90 through HPD and EDID, so as to drive the image processing unit 91 to operate normally without installing a physical LCM, so as to provide image signals and drive the electronic paper display 10 to display images; therefore, the touch control type electronic paper display equipment can be independently matched and used on an electronic device with a common image display framework, and the touch sensor 20 is arranged, so that a user can interact with a display picture of the electronic paper display 10, and a friendly use interface convenient for man-machine interaction is formed.
Further, in the foregoing embodiment, the electronic paper display 10 and the touch sensor 20 are respectively connected to an electronic device 90 through a signal transmission interface 12, 22, and the two can be combined and designed to share the same signal transmission interface under the consideration of saving the equipment cost and the like. In addition, in the foregoing embodiment, the virtual display unit 30 is externally connected to the electronic device 90 through the video/audio signal transmission interface 32, but the virtual display unit 30 may be installed inside the body of the electronic device 90 instead, or may be replaced by an application program (application program) or application software (application software).
While the present invention has been fully described in connection with the specific embodiments with reference to the accompanying drawings, it is to be understood that the foregoing embodiments are merely illustrative of further embodiments of the invention, and that no limitation of the invention is thereby intended, such variations and modifications being obvious to one skilled in the art, and such variations and modifications are to be included within the scope of the invention as defined by the appended claims.
Claims (9)
1. A touch electronic paper display apparatus for use in connection with an electronic device having an image processing unit, the touch electronic paper display apparatus comprising:
the electronic paper display is connected to the electronic device through a first signal transmission interface, receives an image signal provided by the electronic device and displays the image signal as an image picture;
the transparent touch sensor is connected to the electronic device through a second signal transmission interface, is arranged on the display surface of the electronic paper display and is used as an input device matched with the image picture of the electronic paper display; and
and the virtual display unit is connected to the electronic device through a third signal transmission interface, provides signals detected by HPD and EDID for the electronic device, enables the image processing unit to still normally work under the condition that a physical LCM is not installed, provides image signals and drives the electronic paper display to display images.
2. The touch electronic paper display device of claim 1, wherein the transparent touch sensor is selected from one of a capacitive touch sensor, a resistive touch sensor, an electromagnetic touch sensor, an acoustic touch sensor, a vibrating touch sensor, an optical touch sensor, or an in-cell touch sensor.
3. The touch electronic paper display device of claim 1, wherein the first signal transmission interface and the second signal transmission interface are selected from one of a universal serial bus, a universal asynchronous receiver transmitter, or a universal input/output.
4. The touch electronic paper display device of claim 1, wherein the first signal transmission interface and the second signal transmission interface are the same signal transmission interface.
5. The touch electronic paper display device of claim 1, wherein the third signal transmission interface is one selected from the group consisting of an hdmi, a vga, a dvd, and a cable/display port.
6. The touch electronic paper display device of claim 1, wherein the electronic paper display is further provided with an electrophoretic display timing controller.
7. The touch electronic paper display apparatus of claim 1, wherein the virtual display unit is mounted inside a body of the electronic device.
8. The touch electronic paper display device of claim 1, wherein the virtual display unit is an application or application software.
9. The touch electronic paper display apparatus of claim 1, wherein the electronic device is one of a computer, a workstation, a gaming machine, or a server.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446172.4A CN112002260A (en) | 2019-05-27 | 2019-05-27 | Touch electronic paper display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910446172.4A CN112002260A (en) | 2019-05-27 | 2019-05-27 | Touch electronic paper display device |
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| Publication Number | Publication Date |
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| CN112002260A true CN112002260A (en) | 2020-11-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910446172.4A Pending CN112002260A (en) | 2019-05-27 | 2019-05-27 | Touch electronic paper display device |
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| CN102346972A (en) * | 2010-07-28 | 2012-02-08 | 元太科技工业股份有限公司 | Projection electronic book |
| CN102915709A (en) * | 2012-08-31 | 2013-02-06 | 友达光电股份有限公司 | Electrophoretic display system |
| CN104394347A (en) * | 2014-12-09 | 2015-03-04 | 北京精一强远科技有限公司 | Device and method for forcing high-definition multimedia interface (HDMI) to output video signals |
| CN106687915A (en) * | 2014-09-08 | 2017-05-17 | 佳能株式会社 | Image output apparatus, image display apparatus, control method of image output apparatus, and control method of image display apparatus |
| CN108205429A (en) * | 2016-12-16 | 2018-06-26 | 宏正自动科技股份有限公司 | Control apparatus, system and method for simulating display screen and supporting virtual display apparatus |
| CN108780629A (en) * | 2016-02-05 | 2018-11-09 | 韧硬软机电股份有限公司 | Display system for video display array |
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2019
- 2019-05-27 CN CN201910446172.4A patent/CN112002260A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101206838A (en) * | 2006-12-23 | 2008-06-25 | Lg.菲利浦Lcd株式会社 | Electrophoretic display and driving method thereof |
| CN102346972A (en) * | 2010-07-28 | 2012-02-08 | 元太科技工业股份有限公司 | Projection electronic book |
| CN102915709A (en) * | 2012-08-31 | 2013-02-06 | 友达光电股份有限公司 | Electrophoretic display system |
| CN106687915A (en) * | 2014-09-08 | 2017-05-17 | 佳能株式会社 | Image output apparatus, image display apparatus, control method of image output apparatus, and control method of image display apparatus |
| CN104394347A (en) * | 2014-12-09 | 2015-03-04 | 北京精一强远科技有限公司 | Device and method for forcing high-definition multimedia interface (HDMI) to output video signals |
| CN108780629A (en) * | 2016-02-05 | 2018-11-09 | 韧硬软机电股份有限公司 | Display system for video display array |
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Application publication date: 20201127 |
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