CN111782170A

CN111782170A - Display device

Info

Publication number: CN111782170A
Application number: CN202010606155.5A
Authority: CN
Inventors: 苏波; 王友初
Original assignee: Shenzhen Augmented Reality Technology Co ltd
Current assignee: Shenzhen Augmented Reality Technology Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2020-10-16

Abstract

The invention discloses a display, which comprises a display body and comprises: the Type-c interface is arranged on the display body and used for receiving image and/or video input signals from external equipment; the display decoding chip is arranged on the display body, is used for decoding the input signal and is connected with the MCU control chip through an I2C bus; the power supply processing module is arranged on the display body, is electrically connected with the MCU control chip and can receive a PWM control signal sent by the MCU control chip, and the PWM control signal is used for controlling the output of the power supply processing module so as to change the backlight brightness of the display; and the power supply input end of the power supply processing module is coupled with the Vbus pin of the Type-c interface. The display disclosed by the invention does not need to be provided with an independent power supply unit, is directly powered by a Type-c interface and transmits image information, and is convenient to use.

Description

Display device

Technical Field

The invention relates to the field of display equipment, in particular to a display.

Background

The Type-C is a connecting interface of the USB interface, can be inserted without dividing the front side and the back side, has the size of about 8.3mm multiplied by 2.5mm, and supports the functions of charging, data transmission, display output and the like of the USB standard like other interfaces. Type-C was established by USBImplementers Forum and began to spread after 2014 with the support of apple, Google, Intel, Microsoft and other vendors.

The existing display is generally provided with HDMI, DP and VGA interfaces, and is connected with display input equipment by using corresponding connecting wires when in use, and the display and the input equipment are independently powered. Along with the popularization of Type-C interface, more and more smart machine all has Type-C interface to most of smart machine all are the Type-C interface of full function, and like this, Type-C interface just can export audio and video signal, as long as external equipment possesses corresponding function, just can show the image or play audio frequency. Some connection terminals, such as HDMI terminals, cannot be inserted and pulled arbitrarily in some cases, and their use is also limited.

Disclosure of Invention

The invention aims to solve the technical problems and provides a display, wherein a Type-C interface is arranged, so that power can be supplied to the display by using external equipment, a screen splitting or screen projecting function can be achieved, the display can be plugged and pulled out at will when in use, and the convenience in use of the product is improved.

In order to achieve the purpose, the invention adopts the technical scheme that:

the display comprises a display body and a Type-c interface, wherein the Type-c interface is arranged on the display body and is used for receiving image and/or video input signals from external equipment; the display decoding chip is arranged on the display body, is used for decoding the input signal and is connected with the MCU control chip through an I2C bus; the power supply processing module is arranged on the display body, is electrically connected with the MCU control chip and can receive a PWM control signal sent by the MCU control chip, and the PWM control signal is used for controlling the output of the power supply processing module so as to change the backlight brightness of the display; and the power supply input end of the power supply processing module is coupled with the Vbus pin of the Type-c interface.

Preferably, the external device is a tablet computer or a smart phone.

Preferably, the model of the display decoding chip is LT 7911B.

Preferably, the model of the MCU control chip is STM32F103C8T 6.

Preferably, the power processing module comprises a power management chip TPS 65132W.

Preferably, the Type-c interface is a female interface.

Preferably, be equipped with on the display body and accomodate the chamber, accomodate the chamber and be used for placing or accomodate Type-c connecting wire.

Preferably, the accommodating cavity is arranged at the bottom or the back of the display body.

Preferably, the containing cavity is provided with a cover capable of opening and closing.

The display has the advantages that the display comprises a display body and a Type-c interface, wherein the Type-c interface is arranged on the display body and is used for receiving image and/or video input signals from external equipment; the display decoding chip is arranged on the display body, is used for decoding the input signal and is connected with the MCU control chip through an I2C bus; the power supply processing module is arranged on the display body, is electrically connected with the MCU control chip and can receive a PWM control signal sent by the MCU control chip, and the PWM control signal is used for controlling the output of the power supply processing module so as to change the backlight brightness of the display; and the power supply input end of the power supply processing module is coupled with the Vbus pin of the Type-c interface. As long as insert type-c line just can put into the display to the display signal, can carry out extension mode split screen like this and use, connection stability is good, convenient to use, and image decoding chip can automatic identification positive and negative simultaneously, and arbitrary plug is used when using.

Drawings

The invention is described in further detail below with reference to the following figures and embodiments:

FIG. 1 is a schematic diagram of the interface structure of type-c of the present invention;

FIG. 2 is a schematic block diagram of the control circuit of the present invention;

FIG. 3 is a schematic diagram of a pin structure of the MCU control chip according to the present invention;

FIG. 4 is a schematic diagram of the connection of the display decoding chip of the present invention;

FIG. 5 is a schematic diagram of a power supply circuit of the present invention;

FIG. 6 is a schematic perspective view of a display according to the present invention;

FIG. 7 is a schematic diagram of a second three-dimensional structure of the display according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through the communication between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Referring to fig. 1 to 7, an embodiment of the present invention provides a display, including a display body 100, a Type-c interface 101 provided on the display body for receiving an image and/or video input signal from an external device; the display decoding chip 102 is arranged on the display body, specifically, the display decoding chip is arranged inside the display body 100, is used for decoding the input signal, and is connected with the MCU control chip 104 through an I2C bus; the power supply processing module 103 is also arranged inside the display body, is electrically connected with the MCU control chip and can receive a PWM control signal sent by the MCU control chip, and the PWM control signal is used for controlling the output of the power supply processing module so as to change the backlight brightness of the display; and the power supply input end of the power supply processing module is coupled with the Vbus pin of the Type-c interface.

In the invention, the external equipment is a tablet personal computer or a smart phone.

Preferably, referring to fig. 4, the display decoding chip has model number LT 7911B. The lottium LT9211 is a high performance converter that can interconvert between mipi dsi/csi-2/two ports lvds and ttl, except ttl to ttl. LT9211 deserializes the incoming mipi/lvds/ttl video data, decodes the packets, and converts the formatted video data stream to the mipi/lvds/ttl transmitter output between the ap and the mobile display panel or camera. The LT9211 can be used as a 2-port MIPI/LVDS repeater, supporting maximum 14db input equalization and programmable pre-emphasis to improve performance. LT9211 may also be used as a MIPI/LVDS muxer and splitter. LT9211 was fabricated using advanced CMOS processes, packaged with 7.5 × 7.5mm QFN 64. The package meets the RoHS standard and is specified to operate at a temperature in the range of-40 ℃ to +85 ℃.

Preferably, referring to fig. 3, the model of the MCU control chip is STM32F103C8T 6. The STM32F103C8T6 is a 32-bit microcontroller based on ARM Cortex-M kernel STM32 series, the capacity of a program memory is 64KB, the voltage is required to be 2V-3.6V, and the working temperature is-40 ℃ to 85 ℃.

Preferably, the power processing module comprises a power management chip TPS 65132W. The input 110 of the TPS65132W is coupled to the Vbus pin of the Type-c interface.

Preferably, the Type-c interface is a female interface.

Preferably, the display body is provided with a containing cavity 105, and the containing cavity is used for placing or containing a Type-c connecting line. Of course, as another embodiment, the display of the present invention may be provided with a stand (not shown) for convenience of use.

Preferably, the receiving cavity is provided with a cover 106 which can be opened and closed.

The present invention has been described in detail with reference to the above embodiments, but the present invention is not limited thereto. The protection scope of the present invention is not limited to the above embodiments, but equivalent modifications or changes made by those skilled in the art according to the disclosure of the present invention should be included in the protection scope of the claims.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and the practice of the invention is not to be considered limited to those descriptions. It will be apparent to those skilled in the art that a number of simple derivations or substitutions can be made without departing from the inventive concept.

Claims

1. The display, including the display body, its characterized in that includes:

the Type-c interface is arranged on the display body and used for receiving image and/or video input signals from external equipment;

the display decoding chip is arranged on the display body, is used for decoding the input signal and is connected with the MCU control chip through an I2C bus;

the power supply processing module is arranged on the display body, is electrically connected with the MCU control chip and can receive a PWM control signal sent by the MCU control chip, and the PWM control signal is used for controlling the output of the power supply processing module so as to change the backlight brightness of the display;

and the power supply input end of the power supply processing module is coupled with the Vbus pin of the Type-c interface.

2. The display of claim 1, wherein the external device is a tablet computer or a smartphone.

3. The display as claimed in claim 2, wherein the display decoding chip has model number LT 7911B.

4. The display according to claim 3, wherein the MCU control chip is STM32F103C8T 6.

5. The display of claim 4, wherein the power processing module comprises a power management chip TPS 65132W.

6. The display of any one of claims 1-5, wherein the Type-c interface is a female interface.

7. The display according to any one of claims 1 to 5, wherein a receiving cavity is provided on the display body, and the receiving cavity is used for placing or receiving a Type-c connecting wire.

8. The display of claim 7, wherein the receiving cavity is disposed at a bottom or a back of the display body.

9. The display as claimed in claim 8, wherein the receiving cavity is provided with a lid which can be opened and closed.