CN212906240U

CN212906240U - Touch peep-proof display device

Info

Publication number: CN212906240U
Application number: CN202020793111.3U
Authority: CN
Inventors: 赵巍
Original assignee: Shenzhen Weichuang Jingcai Technology Co ltd
Current assignee: Shenzhen Weichuang Jingcai Technology Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-04-06
Anticipated expiration: 2030-05-13

Abstract

The utility model provides a touch-control peep-proof display device, which comprises an outer shell, a display screen, a driving circuit and a backlight source, wherein the display screen, the driving circuit and the backlight source are arranged in the outer shell; the display screen comprises a light control film which is covered on the surface and made of polyethylene glycol terephthalate; the display driving module comprises a first display driving circuit, a second display driving circuit and a mode selection key, the main controller receives a control instruction of the mode selection key, and the main controller controls the display screen to switch between different display modes according to the control instruction; the display interface includes at least one of: the display driving module is connected with external electronic equipment through the display interface to establish data connection.

Description

Touch peep-proof display device

Technical Field

The utility model relates to a display technical field, in particular to touch-control peep-proof display device.

Background

With the pursuit of design of portability, lightness, thinness, flatness and shortness of electronic equipment by people, the use of smart phones is more and more popular, in order to ensure the portability of the smart phones, the screen size of the current mainstream mobile phones is generally concentrated on 5-6 inches, and the performance and functions of the mobile phones can actually meet the requirements of office work and entertainment. However, due to the limitation of size, desktop office can not be realized conveniently by directly using a mobile phone, and users who have mobile office requirements are mainly accompanied by a notebook computer at present, so that inconvenience is still caused to users who have mobile office requirements. When the existing mobile phone is used for projecting a screen on a display device with a larger size, the display content in the screen can be easily seen by other people in the screen projecting using process, so that the application in a screen projecting mode is also limited.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem that exists now, the utility model provides a touch-control peep-proof display device can conveniently be connected with other electronic equipment such as cell-phones and realize the screen of throwing of touch-control peep-proof display device, and this touch-control peep-proof display device is convenient for remove and autonomous working, and can conveniently protect the privacy, and the cell-phone of being convenient for realizes the desktop official working.

In order to achieve the above object, the embodiment of the present invention provides a technical solution that:

a touch peep-proof display device comprises an outer shell, a display screen, a driving circuit and a backlight source, wherein the display screen, the driving circuit and the backlight source are arranged in the outer shell; the display screen comprises a light control film which is covered on the surface and made of polyethylene glycol terephthalate; the touch control module is used for receiving a touch control instruction and sending the touch control instruction to the main controller, the main controller sends the display driving module according to the touch control instruction, and the display driving module drives the display screen to perform corresponding display; the main board is also provided with a battery module connected with the main controller, and the battery module is used for supplying power to the main controller and the display screen; the display driving module comprises a first display driving circuit, a second display driving circuit and a mode selection key for controlling the first display driving circuit and the second display driving circuit to be switched, the main controller receives a control instruction for the mode selection key, and controls the display screen to be switched among different display modes according to the control instruction, wherein the display modes comprise a privacy mode for starting the light control film and a full display mode for closing the light control film; the display interface comprises at least one of: the display driving module is connected with external electronic equipment through the display interface to establish data connection.

The privacy mode comprises a left peep-proof mode, a right peep-proof mode and a four-side peep-proof mode.

The first display driving circuit comprises a display driving chip connected with the display screen, the second display driving circuit comprises a switch circuit connected with the light-control film, and the mode selection key is connected with the switch circuit to correspondingly start or close the light-control film.

Wherein, type-C interface is the female seat interface of type-C.

The display interface further comprises an HDMI (high-definition multimedia interface) connected with the main controller, and the display driving module is connected with external electronic equipment through the HDMI.

The mode selection key comprises a solid key which is arranged on one side of the main board and protrudes out of the shell.

The mode selection key comprises a touch key arranged at the edge of the display screen.

The outer shell comprises a back plate for bearing the backlight source, the driving circuit and the display screen and a front frame connected with the back plate in a buckled mode, and the back plate and the front plate jointly enclose a containing space for containing the backlight source, the driving circuit and the display screen.

The embodiment of the utility model provides a touch-control peep-proof display device, supply power including battery module to this touch-control peep-proof display device also can support to carry out corresponding demonstration when throwing the screen with the wireless of outside electronic equipment to display screen when need not external power source line, the display interface includes one of at least as follows: the display driving module is connected with external electronic equipment through the display interface to establish data connection so as to support the touch peep-proof display equipment to be capable of realizing screen projection in various application occasions, secondly, the display screen comprises a light control film which is covered on the surface and is made of polyethylene glycol terephthalate, the display driving module of the touch peep-proof display equipment comprises a first display driving circuit, a second display driving circuit and a mode selection key for controlling the first display driving circuit and the second display driving circuit to be switched, switching between a privacy mode and a full display mode can be supported, only a user on the front display screen can clearly see display contents in the privacy mode, and the phenomenon that the display contents are easily snooped by others in the screen projection office process of using the touch peep-proof display equipment outside is well avoided, the touch peep-proof display device is safer to use.

Drawings

Fig. 1 is a schematic structural diagram of a touch peep-proof display device provided in an embodiment of the present application;

fig. 2 is an exploded schematic view of the touch privacy display apparatus shown in fig. 1;

fig. 3 is a schematic system composition diagram of a touch-control peep-proof display device provided in the embodiment of the present application.

Detailed Description

The technical solution of the present application is further described in detail with reference to the drawings and specific embodiments of the specification. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of implementations of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to fig. 3, an optional structure of a touch-control peep-proof display device 20 provided in the embodiment of the present disclosure is shown, where the touch-control peep-proof display device 20 includes an outer casing 10, a display screen 20 disposed in the outer casing 10, a driving circuit and a backlight source, where the driving circuit includes a main board 30, a main controller 33 disposed on the main board 30, a touch module 34 electrically connected to the main controller 33, a display driving module 36, and a display interface connected to the display driving module 36; the display screen 20 includes a light control film 21 made of polyethylene terephthalate covering the surface.

The touch module 34 is configured to receive a touch instruction and send the touch instruction to the main controller 33, the main controller 33 sends the display driving module 36 according to the touch instruction, and the display driving module 36 drives the display screen 20 to perform corresponding display; the main board 30 is further provided with a battery module 35 connected with the main controller 33, and the battery module 35 is used for supplying power to the main controller 33 and the display screen 20; the display driving module 36 includes a first display driving circuit 362, a second display driving circuit 363, and a mode selection key 42 for controlling the first display driving circuit 362 and the second display driving circuit 363 to switch, the main controller 33 receives a control instruction from a user to the mode selection key 42, and the main controller 33 controls the display screen 20 to switch between different display modes according to the control instruction, where the display modes include a privacy mode for activating the light control film 21 and a full display mode for deactivating the light control film 21; the display interface comprises at least one of: the display driving module is connected with external electronic equipment through the display interface to establish data connection.

The display interface may include a type-C interface 41 and a wireless communication interface 43, and the display driving module 36 is connected to the external electronic device through the type-C interface 41, or establishes a wireless data connection with the external electronic device through the wireless communication interface 43. In some optional embodiments, the display interface may further include a VGA interface, an HDMI interface, a PD interface, or a USB interface, so that the touch-control peep-proof display device 20 is externally connected to various electronic devices through the display interface, thereby implementing the screen projection from the external electronic device to the touch-control peep-proof display device 20, and meanwhile implementing the screen projection from the touch-control peep-proof display device 20 to other external electronic devices.

The outer shell 10 includes a rear plate 13 for bearing the backlight, the driving circuit and the display screen 20, and a front frame 11 connected with the rear plate 13 in a buckled manner, the front frame 11 and the rear plate 13 are approximately equal in size, and an accommodating space for accommodating the backlight, the driving circuit and the display screen 20 is formed between the rear plate 13 and the front frame 11 in a surrounding manner. The mode selection key 42 may be a physical key disposed on one side of the main board 30 and protruding from the housing; or may be a touch key disposed at the edge of the display screen 20.

The touch-control peep-proof display device 20 can be arranged in a scene of a certain public environment and used by different users through a shared way, for example, when the touch-control peep-proof display device is placed in a coffee house, the users use mobile phones to project screens to the touch-control peep-proof display device 20 in the coffee house according to actual requirements, and teleconferencing, online games, desktop office work and the like can be conveniently realized by projecting the mobile phones to the touch-control display device; or placed in a library, the user may connect with the touch-control peep-proof display device 20 by using his own mobile phone, and desktop work or the like is realized by projecting the mobile phone to the touch-control peep-proof display device 20. It is understood that the placement environment of the touch-control peep-proof display device 20 is not limited to the above-mentioned cafes and libraries, but may also be a place such as a business rest room in a conference room, a station or an airport, so that a user can conveniently conduct a teleconference, an online game, or a desktop office, etc. with the aid of the wireless touch-control display device through a mobile phone according to temporary needs.

The display mode of the touch-control peep-proof display device 20 includes a privacy mode and a full display mode, when the user uses the touch-control peep-proof display device 20 to perform screen projection use, the current display mode can be switched according to the own needs, in the privacy mode, the user facing the display screen 20 can clearly see the display content, but the people beside the display screen 20 cannot clearly see the display content of the display screen 20, so that the user can conveniently use the touch-control peep-proof display device 20 to perform screen projection use, and the privacy of the user is well protected; and the full display mode is convenient for the user to select under the condition that the displayed content has no private content, and the eyesight is prevented from being damaged by using the private mode for a long time.

The touch module 34 is configured to receive a touch instruction and send the touch instruction to the main controller 33, and the main controller 33 sends a corresponding control instruction to the display driving module 36 according to the touch instruction to control the display screen 20 to display. The touch peep-proof display device 20 further comprises a battery module 35 connected with the main controller 33, and the battery module 35 is used for supplying power to the display screen 20 and the display driving module 36. The first display driving circuit 362 includes a driving chip for driving the display screen 20 to display, the second display driving circuit 363 includes a switch circuit 364 connected to the light control film 21, and the mode selection key 42 is connected to the switch circuit 364 to correspondingly turn on or off the light control film 21. The display driving chip can establish connection with an external electronic device according to the touch-control peep-proof display device 20 to transmit data signals, so that the external electronic device can project a screen to the touch-control peep-proof display device 20. The switch circuit 364 is connected to the mode selection button 42, the switch circuit 364 may include electronic switching elements such as a triode, a field effect transistor, and the like, and when the mode selection button 42 is pressed, the switch circuit 364 is conducted with the second display driving circuit 363, so as to start the light control film 21 to reduce the visible range of the display content of the display screen 20, thereby achieving the purpose of peep prevention, and at this time, the touch peep prevention display device 20 operates in the privacy mode. When the mode selection key 42 is released, the switch circuit 364 is disconnected from the second display driving circuit 363, so as to turn off the function of the light control film 21, and at this time, the touch peep-proof display device 20 operates in the full display mode.

The privacy mode comprises a left peep-proof mode, a right peep-proof mode and a four-side peep-proof mode. The light control film 21 is embedded with a louver layer structure with hundreds of ultrafine blades, under the action of the optical technology of the ultrafine louver, the light transmittance of the front surface of the display screen 20 is the highest, the visibility is the strongest, the transmittance gradually decreases along with the inclination of an angle, and the display screen 20 also gradually becomes dark, so that peep prevention is realized. The left-right peep prevention means that the visual range of the display content of the display screen 20 is narrowed by the design of the inclination angles of the louver layer structures on the left side and the right side of the light control film 21, so that the content displayed in the display screen 20 is prevented from being visible on the left side and the right side. The four-side peep prevention means that the viewing range of the display content of the display screen 20 is narrowed by the design of the inclination angles of the louver layer structures at the four edges of the light control film 21, so as to prevent the contents displayed in the display screen 20 from being viewed from the upper, lower, left and right sides.

The touch-control peep-proof display device 20 can establish data connection with an external electronic device through the type-C interface 41 and the wireless communication interface 43. The type-C interface 41 may be a type-C female socket interface. The display driving module 36 may convert a received video signal sent by an external device into a video interface signal, and then send the video interface signal to the display screen 20 for displaying, where the video interface signal may be an embedded video interface ePD signal, an LVDS interface signal, or an MIPI DSI interface signal, where the LVDS interface signal is only used for transmitting video data, and the MIPI DSI interface signal may not only transmit video data, but also transmit a control instruction. The LVDS interface signals mainly convert RGB TTL signals into LVDS signals for transmission according to an SPWG/JEIDA format, and the MIPI DSI interface transmits video data and control data required by screen control according to a specific handshake sequence and an instruction rule.

This touch-control peep-proof display device 20 includes battery module 35, supplies power to display screen 20, drive circuit and backlight through battery module 35 to when need not external power supply line, also can support the screen of throwing of outside electronic equipment to display screen 20, can need not external power supply line at display screen 20 realization screen of throwing during operation, make touch-control peep-proof display device 20 whole more succinct, be convenient for remove and independent work.

In some embodiments, the touch-sensing privacy-protecting display device 20 further includes a wireless energy receiving module, connected to the touch module 34 and the main controller 33, for receiving electromagnetic waves of a specified frequency emitted by an electronic device main body and converting the electromagnetic waves into electric energy for supplying power to the display screen 20 and the display driving module 36. The electronic equipment main body is provided with a wireless energy transmitting module. The electronic device main body transmits the electromagnetic wave with the specific frequency to the wireless energy receiving module of the touch peep-proof display device 20 through the wireless energy transmitting module, so that the touch peep-proof display device 20 converts the electromagnetic wave into electric energy after receiving the electromagnetic wave. It should be noted that, the wireless energy receiving module and the wireless energy transmitting module herein may use a known chip, such as a chip model of WP 8007/EC8010, or other chips capable of achieving the same function.

In some embodiments, the touch peep-proof display device 20 further includes a wireless transceiver module 361, configured to encode an input signal received by the touch module 34, send the encoded input signal to the electronic device main body for data processing, receive a wireless control signal sent by the electronic device main body, decode the wireless control signal, and transmit the decoded wireless control signal to the main controller 33. Here, the wireless transceiver module 361 may be one of an infrared communication module, a bluetooth communication module, a Zwave communication module, and a Zigbee communication module.

In some embodiments, the wireless touch display device further includes a display screen control switch connected to the battery module 35, and the display screen control switch is configured to control on/off of a power supply between the battery module 35 and the display screen 20. The size of the display screen 20 is primarily suitable for desktop office operations, such as but not limited to 15.6 inches. The display screen 20 is usually a high-resolution touch display screen 20, such as a maximum 4k resolution. The display control switch may include a mechanical mode selection button 42 and switch electronics linked with the mechanical mode selection button 42, the switch electronics is connected between the battery module 35 and the power supply port of the display 20, and the mechanical button is manually switched by a user to control the switch electronics to be turned on or off, so as to correspondingly control the connection or disconnection between the battery module 35 and the power supply port of the display 20. In the use process of this touch-control peep-proof display device 20, the lighting of display screen 20 is the most power consumptive relatively, in order to ensure the time of continuing the voyage of battery module 35's electric energy, sets up the display screen control switch of the independent control display screen 20 power break-make, and it is long when can increase touch-control peep-proof display device 20's use, avoids the waste of electric energy.

In some embodiments, the display interface further includes an HDMI interface connected to the main controller 33, and the main controller 33 receives the audio and video signal of the peer device 40 through the HDMI interface. This HDMI interface can set up in the rear side of touch-control peep-proof display device 20, through setting up the HDMI interface, can increase this touch-control peep-proof display device 20's suitable scene. Optionally, the HDMI interface is an HDMI mini interface.

In some embodiments, the touch-control privacy display device 20 further comprises an earphone hole and a speaker connected with the main controller 33. The earphone hole and the speaker may be disposed at one side of the outer case 10, and when the earphone is inserted into the earphone hole, the speaker is automatically cut off; otherwise, the speaker acquires the sound signal sent by the main controller 33 to realize sound emission.

In some embodiments, the touch module 34 includes a capacitive touch pad chip, and the display screen 20 is a TFT-LCD screen or an AMOLED screen.

In some embodiments, the display driving module 36 may include a conversion chip for converting the external video interface DP signal into an eDP signal. The conversion chip outputs an eDP signal through an embedded video interface to control the display screen 20 to display by receiving a DP signal output by an external opposite-end device wirelessly connected with the touch peep-proof display device 20 in a matching manner, so that the external opposite-end device is projected onto the display screen 20. In an alternative embodiment, the conversion chip may be of the NCS8801S chip type.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A touch peep-proof display device comprises an outer shell, a display screen arranged in the outer shell, a driving circuit and a backlight source, and is characterized in that the driving circuit comprises a mainboard, a main controller arranged on the mainboard, a touch module electrically connected with the main controller, a display driving module and a display interface connected with the display driving module; the display screen comprises a light control film which is covered on the surface and made of polyethylene glycol terephthalate;

the touch control module is used for receiving a touch control instruction and sending the touch control instruction to the main controller, the main controller sends the display driving module according to the touch control instruction, and the display driving module drives the display screen to perform corresponding display;

the main board is also provided with a battery module connected with the main controller, and the battery module is used for supplying power to the main controller and the display screen;

the display driving module comprises a first display driving circuit, a second display driving circuit and a mode selection key for controlling the first display driving circuit and the second display driving circuit to be switched, the main controller receives a control instruction for the mode selection key, and controls the display screen to be switched among different display modes according to the control instruction, wherein the display modes comprise a privacy mode for starting the light control film and a full display mode for closing the light control film;

the display interface comprises at least one of: the display driving module is connected with external electronic equipment through the display interface to establish data connection.

2. The touch privacy display device of claim 1, wherein the privacy mode comprises a left-right privacy mode and a four-sided privacy mode.

3. The touch privacy display device of claim 2, wherein the first display driver circuit comprises a display driver chip connected to the display screen, the second display driver circuit comprises a switch circuit connected to the light control film, and the mode selection key is connected to the switch circuit to turn on or off the light control film accordingly.

4. The touch privacy display device of claim 1, wherein the type-C interface is a type-C female socket interface.

5. The touch privacy display device of claim 1, wherein the display interface further comprises an HDMI interface connected to the main controller, and the display driver module is connected to an external electronic device through the HDMI interface.

6. The touch privacy display device of claim 1, wherein the mode selection key comprises a physical key disposed on one side of the motherboard and protruding from the housing.

7. The touch privacy display device of claim 1, wherein the mode selection key comprises a touch key disposed at an edge of the display screen.

8. The touch-control peep-proof display device according to claim 1, wherein the outer casing comprises a back plate for carrying the backlight, the driving circuit and the display screen, and a front frame in buckled connection with the back plate, and the back plate and the front frame jointly enclose a containing space for containing the backlight, the driving circuit and the display screen.