CN210109772U - Touch control display device - Google Patents
Touch control display device Download PDFInfo
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- CN210109772U CN210109772U CN201921096428.5U CN201921096428U CN210109772U CN 210109772 U CN210109772 U CN 210109772U CN 201921096428 U CN201921096428 U CN 201921096428U CN 210109772 U CN210109772 U CN 210109772U
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Abstract
The utility model discloses a touch display device, it includes a display screen, a touch-control unit, a display processing unit to and a selector. The touch control unit is coupled with the display screen and used for detecting a touch event when the display screen is touched and providing one to a plurality of touch coordinates corresponding to the touch event. The display processing unit is coupled to the display screen and determines an operation mode according to a control signal. The selector is coupled to the touch control unit and the display processing unit and used for receiving the one to more touch coordinates and selectively outputting the one to more touch coordinates to the display processing unit or an external host computer according to the control signal.
Description
Technical Field
The utility model relates to a display device especially relates to a touch-control display device.
Background
In a general conference brief, in order to make the audience more clearly understand the content of the brief, the presenter uses a laser projector pen or opens a brief auxiliary program to clearly indicate the paragraph or object that the presenter speaks in the brief. The bulletin auxiliary program provides the function like an electronic whiteboard, so that a speaker can directly mark the original bulletin picture through various input devices (such as a keyboard, a mouse and touch) of a host computer to inform the audience of the emphasis of the bulletin.
Although the briefing assistant program can assist in completing the function of the electronic whiteboard, the briefing assistant program needs to be installed in advance, and occupies the processor data and the storage data of the host computer when the briefing assistant program is executed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a touch-control display device to solve above-mentioned problem.
To achieve the above objects, the present invention provides a touch display device, which is coupled to a host computer, and includes a display screen, a touch unit, a display processing unit, and a selector. The touch control unit is coupled with the display screen and used for detecting a touch event when the display screen is touched and providing one to a plurality of touch coordinates corresponding to the touch event. The display processing unit is coupled to the display screen and determines an operation mode according to a control signal. The selector is coupled to the touch control unit and the display processing unit and used for receiving the one to more touch coordinates and selectively outputting the one to more touch coordinates to the display processing unit or an external host computer according to the control signal. In a first mode, the display processing unit receives and processes the one to more touch coordinates through switching output of the selector, and displays punctuations or graticules corresponding to the one to more touch coordinates in the display screen.
In the touch display device, in the first mode, the display processing unit is a processing unit that performs a drawing function of a screen display function, and the drawing function is to display punctuations or marks corresponding to one or more touch coordinates on the display screen.
In the touch display device, in the first mode, the display processing unit is a processing unit that performs a picture setting function of the on-screen display function, the picture setting function is to set a picture on the display to a single color, the display processing unit is a processing unit that performs a brush color setting function of the on-screen display function, and the brush color setting function is to set a brush color of the brush function.
In the above touch display device, in the first mode, the display processing unit processes an image signal from an image signal source to display the image signal on the display screen.
In the above touch display device, in a second mode, the host computer receives and processes the one or more touch coordinates through the switching output of the selector, and the display processing unit processes the image signal from the host computer to display on the display screen.
The touch display device further includes a button coupled to the display processing unit and the selector for generating the control signal.
In the touch display device, the button is a physical button disposed on a housing of the touch display device, or an icon displayed on the display screen by a virtual button.
The touch display device as described above, wherein the selector includes an input terminal, a first output terminal, a second output terminal, and a control terminal; the input end is coupled with the touch control unit; the first output end is coupled with the display processing unit; the second output end is coupled with the host computer; and the control end is coupled with the key and used for receiving the control signal.
The utility model has the advantages of, this touch-control display device can replace the function of whiteboard and traditional whiteboard on the present market to provide different operational modes, apply to in life and work for the user in a flexible way. In the screen display mode provided by the touch display device, a user can directly operate on the display screen of the touch display device to mark in any picture (such as a picture displaying an image signal from an image signal source, a picture presenting no signal or directly setting the picture as a single color), so that the dependence on the efficiency of an external host computer can be reduced.
Drawings
Fig. 1 is a block diagram of a touch display device according to an embodiment of the present invention;
fig. 2 is an operation schematic diagram of a touch display device according to an embodiment of the present invention;
fig. 3 is another schematic operation diagram of a touch display device according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a control method of a touch display device according to an embodiment of the present invention.
Description of the symbols
100-touch display device
102-touch Unit
104-display processing unit
106-selector
108-display screen
110-push button
112-host computer
A. B, C, D, E, F-mark
Ctrl control signal
S200-S206-description of the flow chart
Detailed Description
Fig. 1 is a block diagram of a touch display device 100 according to an embodiment of the present invention. As shown in fig. 1, the touch display device 100 includes a touch unit 102, a display processing unit 104, a selector 106, a display screen 108, and a button 110, wherein the display screen 108 is integrated with a touch panel (not shown), which may be implemented by, for example, an external touch panel or an internal touch panel. In addition, the touch display device 100 can be externally connected to a host computer 112.
The touch unit 102 of the present embodiment is coupled to the display screen 108, and more particularly to a touch panel of the display screen 108, for detecting a touch event when the touch screen 108 is touched, and providing one or more touch coordinates corresponding to the touch event. For example, when the user touches any position on the display screen 108 with a finger, the touch unit 102 detects the touch event and calculates a touch coordinate (e.g., coordinate (x, y)) according to the touch position. If the user touches (or continuously touches) 2 (or more) positions on the display screen 108 at the same time, the touch unit 102 also calculates 2 (or more) touch positions according to the 2 (or more) touch positions) Corresponding touch coordinates (e.g., coordinates (x)1,y1)～(xn,yn)，n≥2)。
The display processing unit 104 of the present embodiment may be a microcontroller unit (MCU) built in the touch display device 100, coupled to the display screen 108, for controlling a display frame of the display screen 108 and performing an On Screen Display (OSD) function. The display processing unit 104 of the present embodiment performs the screen display function, and provides a function of drawing a brush in addition to the function of adjusting the brightness, the contrast, and other parameters of the display screen 108 by a general user.
The display processing unit 104 determines an operation mode according to a control signal Ctrl, for example, the operation mode can be switched to an on-screen display mode (OSD) or a normal mode. On the other hand, the selector 106 selectively outputs the touch coordinates received from the touch unit 102 to the display processing unit 104 or the host computer 112 according to the control signal Ctrl, in the embodiment, the selector 106 switches to output the touch coordinates to the display processing unit 104 when corresponding to the screen display mode; when the normal mode is selected, the selector 106 switches the touch coordinates to the host computer 112.
In practice, when the touch display device 100 operates in the on-screen display mode, the touch coordinates are received and processed by the display processing unit 104 through switching of the selector 106. At this time, the display processing unit 104 not only processes the video signal from the video signal source (e.g., the host computer 112, the television signal provider, the multimedia player, etc.) to be displayed on the display screen 108, or presents a no-signal picture on the display screen 108, but also performs an on-screen display function to provide a brush function for displaying a punctuation or a reticle corresponding to the touch coordinate in the display screen 108 according to the touch coordinate. In other words, at this time, regardless of whether the display screen 108 displays any image signal or displays no signal, the display processing unit 104 can directly mark the touched position of the display screen 108 with a corresponding mark (for example, in the form of a punctuation mark or a marking line), and more specifically, if the user touches a finger on the display screen 108 with a single point, the display processing unit 104 displays the punctuation mark corresponding to the finger touch point of the user on the display screen 108; if the user continuously slides with his finger on the display screen 108, the display processing unit 104 displays the corresponding mark line of the sliding track touched by the user's finger on the display screen 108.
In addition, in the normal mode of operation, the touch coordinates are received and processed by the host computer 112 externally connected to the touch display device 100 through the switch of the selector 106. At this time, the user may select the image signal source received by the touch display device 100, but in general, the user may select to let the display processing unit 104 receive and process the image signal from the host computer 112 so as to correspondingly display the real-time operation screen of the host computer 112 on the display screen 108. In other words, in the normal mode, the touch display device 100 can be used as both a touch input device and a display output screen of the host computer 112, that is, a user can control and operate the host computer 112 by integrating the display screen 108 and the touch unit 102 of the touch panel, and also synchronously view the real-time operation screen of the host computer 112 through the display screen 108. For example, assuming that the user touches an icon (icon) of an application software in a desktop image of the operating system displayed on the display screen 108, the touch unit 102 calculates a touch coordinate (e.g., coordinate (x, y)) corresponding to the touch position of the user on the display screen 108, and outputs the touch coordinate to the host computer 112 through switching of the selector 106. The operating system of the host computer 112 processes the touch coordinates to correspond to the action of starting the application software. Further, assuming that the application software started by the user is a bulletin assistant software, at this time, the user can directly perform a marking operation (such as a mark line) on a window frame displayed on the display screen 108, and the touch unit 102 calculates a plurality of touch coordinates (such as coordinates (x) corresponding to the continuous touch positions of the user on the display screen 1081,y1)～(xn,yn) And switched by the selector 106 to be output to the host computer 112, the touch coordinates are processed by the presentation assistance software of the host computer 112 to correspond to the action of executing the brush marking.
In some embodiments, the selector 106 may be a one-to-two switch (or multiplexer) including an input terminal, a first output terminal, a second output terminal, and a control terminal. The input end is coupled with the touch unit 102; the first output terminal is coupled to the display processing unit 104; the second output terminal is coupled to the host computer 112; and a control terminal coupled to the button 110 for receiving the control signal Ctrl.
Regarding the key 110, the user can operate the key 110 to generate the control signal Ctrl to switch the operation mode of the touch display device 100. In some embodiments, the button 110 is a physical button disposed on the housing of the touch display device 100, and the display processing unit 104 determines whether the button 110 is pressed to determine to switch between the on-screen display mode and the normal mode, for example: when the button 110 is pressed, the display processing unit 104 enters a screen display mode; when the button 110 is not pressed, the display processing unit 104 enters a normal mode. In practical circuit design, the key 110 may be designed to stably output a high voltage to the display processing unit 104 and the selector 106 before being pressed, and when the key 110 is pressed, the key 110 is grounded, so that a low voltage is output to the display processing unit 104 and the selector 106 for a period (corresponding to the pressed period). In this way, when the display processing unit 104 and the selector 106 receive the control signal Ctrl of the low-potential voltage, the display processing unit 104 enters the screen display mode, and the selector 106 correspondingly selects to output the touch coordinate to the display processing unit 104. When the display processing unit 104 and the selector 106 receive the control signal Ctrl of the high-level voltage, the display processing unit 104 enters the normal mode, and the selector 106 correspondingly selects the touch coordinates to be output to the computer host 112.
In some embodiments, the button 110 may be a virtual button designed by a program, and may be specifically designed as an icon displayed on the display screen 108 of the touch display device 100. For example, the button 110 is an icon displayed in a corner, an edge or a floating area of the screen 108, so that the user can directly operate the button 110 by touching the icon.
In some embodiments, when the display processing unit 104 enters the on-screen display mode, the on-screen display function executed by the display processing unit 104 can further provide a screen setting function, so that the user can select whether the current screen on the display 108 displays the original image (e.g., displays the image signal from the image signal source or displays the screen without signal) or directly set the screen to be the selectable single color. In addition, the screen display function executed by the display processing unit 104 may further provide a brush color setting function, so that the user may manually set a brush color of the brush function provided by the display processing unit 104, or automatically set a color contrast with a color of a color screen of a single color on the display screen 108, or any color matching that is clearly distinguishable by the user. Therefore, the touch display device can greatly improve the flexibility, convenience and applicability when being used as an electronic whiteboard.
Fig. 2 is an operation diagram of a touch display device according to an embodiment of the present invention. Assume that the user has a need to mark the original frame displayed on the display screen 108, wherein the frame of the display screen 108 is, for example, a frame displaying an image signal from the host computer 112, such as a segment of text or a pattern as shown in fig. 2. When the touch display device 100 is externally connected to the host computer 112, the two operation modes are respectively the screen display mode and the normal mode.
First, the user can press the button 110 to make the display processing unit 104 enter the screen display mode. At this time, the display processing unit 104 performs the screen display function to provide the brush function, so that when the user slides over the position to be marked by the touch of the finger, the display processing unit 104 processes the touch coordinate generated by the touch, and directly displays the mark (for example, the mark A, B, C, D, E in fig. 2) corresponding to the touch sliding track of the user on the display screen 108 to implement the brush function for marking.
Alternatively, the user may not press the button 110 to enter the display processing unit 104 into the normal mode. At this time, the user must first start the bulletin assisting software or the like in the host computer 112 to provide the brush function through the bulletin assisting software, so that when the user slides over the position to be marked by touching with a finger, the bulletin assisting software of the host computer 112 processes the touch coordinates generated by the touching and generates the marking effect, and since the host computer 112 uses the touch display device 100 as the display output device, the image signal (such as the mark A, B, C, D, E in fig. 2) containing the marking effect from the host computer 112 is synchronously displayed on the display screen 108.
Fig. 3 is another schematic operation diagram of a touch display device according to an embodiment of the present invention. In some cases, assuming that the user turns off the host computer 112 or disconnects the touch display device 100, the touch display device 100 does not receive the image signal from the host computer 112 and displays a no-signal frame on the display screen 108, and the display is generally designed to be a black or blue frame, for example. The touch display device 100 of the present disclosure can completely adapt to this situation, and the user can press the button 110 to make the display processing unit 104 enter the screen display mode. At this time, the display processing unit 104 executes the screen display function to provide the brush function, and before that, the user may also operate the screen setting function in the screen display function to select to display the original image (the original image is a signal-free image) or to set the image as a selectable single color, assuming that the user selects to set the image on the display screen 108 as a single color (e.g., white), and further operates the brush color setting function in the screen display function to set the brush color as a color (e.g., black) that is automatically opposite to the color of the image on the display screen 108. In this way, the touch display device 100 can be used by a user as an electronic whiteboard to directly display a mark (e.g., the mark F in fig. 3) corresponding to the touch trajectory of the user on the display screen 108, so as to implement writing and drawing operations.
Fig. 4 is a flowchart illustrating a control method of a touch display device according to an embodiment of the present invention. The present embodiment is described below with reference to the touch display device 100 in the embodiment of fig. 1, for example. As shown in fig. 4, the control method of the touch display device includes: first, a touch event is detected when the display screen 108 of the touch display device 100 is touched, and one or more touch coordinates corresponding to the touch event are provided (S200). In the present embodiment, the touch display device 100 detects a touch event when a touch is made on the display screen 108 integrated with the touch panel through the touch unit 102.
Then, the operation mode is determined according to a control signal Ctrl (S202). The control signal Ctrl of the present embodiment is generated by, for example, a key 110, and a user can determine the operation mode of the touch display device 100 by operating the key 110. When the touch display device 100 enters a screen display mode, the touch coordinates are processed by the display processing unit 104 built in the touch display device 100 (S204) to display the punctuation or the reticle corresponding to the touch coordinates in the display screen 108. The display processing unit 104 can also synchronously process the video signal from a video signal source to display on the display screen 108, or present a no-signal picture on the display screen 108.
When the touch display device 100 enters a normal mode, the touch coordinates are output to a host computer 112 externally connected to the touch display device 100, so that the host computer 112 receives and processes the touch coordinates (S206), and the display processing unit 104 can also process the image signal from the host computer 112 synchronously to display on the display screen 108.
The embodiment of the present invention provides a touch display device 100 and a control method of the touch display device 100, which can replace the functions of the electronic whiteboard and the traditional whiteboard on the market at present, and provide different operation modes for users to flexibly apply to life and work. In the screen display mode provided by the touch display device 100, a user can directly operate on the display screen 108 of the touch display device 100 to mark any screen (e.g., a screen displaying an image signal from an image signal source, a screen displaying no signal, or a screen directly set to a single color), so that the dependence on the performance of an external host computer can be reduced.
While the invention has been disclosed in conjunction with the above embodiments, it is to be understood that the foregoing is presented by way of example only, and not limitation. Many variations of the above-described exemplary embodiments according to this embodiment may be performed without departing from the spirit and scope of the invention. Thus, the breadth and scope of the present invention should not be limited by any of the above-described exemplary embodiments. Rather, the scope of the invention should be defined by the appended claims and equivalents thereof.
Claims (8)
1. A touch display device, comprising:
a display screen;
the touch control unit is coupled with the display screen and used for detecting a touch event when the display screen is touched and providing one to more touch coordinates corresponding to the touch event;
the display processing unit is coupled with the display screen and determines an operation mode according to the control signal; and
a selector, coupled to the touch unit and the display processing unit, for receiving the one or more touch coordinates and selectively outputting the one or more touch coordinates to the display processing unit or an external host computer according to the control signal;
in the first mode, the display processing unit receives and processes the one to more touch coordinates through switching output of the selector, and displays punctuations or graticules corresponding to the one to more touch coordinates in the display screen.
2. The touch display device of claim 1, wherein in the first mode, the display processing unit is a processing unit that performs a brush function of a screen display function, the brush function being to display a punctuation or a reticle corresponding to the one or more touch coordinates in the display screen.
3. The touch display device according to claim 2, wherein in the first mode, the display processing unit is a processing unit that performs a screen setting function of the screen display function, the screen setting function being to set a screen on the display to a single color, and the display processing unit is a processing unit that performs a brush color setting function of the screen display function, the brush color setting function being to set a brush color of the brush function.
4. The touch display device of claim 1, wherein in the first mode, the display processing unit processes an image signal from an image signal source to be displayed on the display screen.
5. The touch display device of claim 1, wherein in the second mode, the host computer receives and processes the one or more touch coordinates through the switching output of the selector, and the display processing unit processes the image signal from the host computer to be displayed on the display screen.
6. The touch display device of claim 1, further comprising a button coupled to the explicit processor processing unit and the selector for generating the control signal.
7. The touch display device of claim 6, wherein the key is a physical key disposed on a housing of the touch display device or an icon displayed on the display screen as a virtual key.
8. The touch display device of claim 6, wherein the selector comprises an input terminal, a first output terminal, a second output terminal, and a control terminal; the input end is coupled with the touch control unit; the first output end is coupled with the display processing unit; the second output end is coupled with the host computer; and the control end is coupled with the key and used for receiving the control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921096428.5U CN210109772U (en) | 2019-07-12 | 2019-07-12 | Touch control display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921096428.5U CN210109772U (en) | 2019-07-12 | 2019-07-12 | Touch control display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210109772U true CN210109772U (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921096428.5U Active CN210109772U (en) | 2019-07-12 | 2019-07-12 | Touch control display device |
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| Country | Link |
|---|---|
| CN (1) | CN210109772U (en) |
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2019
- 2019-07-12 CN CN201921096428.5U patent/CN210109772U/en active Active
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