CN211606864U

CN211606864U - LED matrix circuit for displaying different states

Info

Publication number: CN211606864U
Application number: CN202020262370.3U
Authority: CN
Inventors: 刘成; 唐会香
Original assignee: Sichuan Changhong Electric Co Ltd
Current assignee: Sichuan Changhong Electric Co Ltd
Priority date: 2020-03-05
Filing date: 2020-03-05
Publication date: 2020-09-29
Anticipated expiration: 2030-03-05

Abstract

The utility model discloses a LED matrix circuit for displaying different states, which comprises a plurality of LED lamp beads which are connected in series in sequence, wherein the input end of the first LED lamp bead is connected to a control port, and the control port is used for inputting RGB coding information; the utility model discloses to user does not know under the far field control mode current far field voice system state and leads to invalid communication to influence the problem of using experience, use the LED matrix to show far field voice system's different states.

Description

LED matrix circuit for displaying different states

Technical Field

The utility model relates to a TV application technology field, especially a LED matrix circuit for showing different states for show the different states of the far field voice system of TV.

Background

In a traditional far-field control scene, a user awakens a far-field assistant for communication through an awakening word, the user does not know the state of a current far-field voice system in the communication process, judgment can be carried out only subjectively, and use experience is poor.

SUMMERY OF THE UTILITY MODEL

For solving the problem that exists among the prior art, the utility model aims at providing a LED matrix circuit for showing different states, the utility model discloses to the user under the far field control mode not know current far field speech system state and lead to invalid communication to influence the problem of using experience, use the LED matrix to show far field speech system's different states.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a LED matrix circuit for showing different states, includes the many LED lamp pearls that establish ties in proper order, and wherein, the input of first LED lamp pearl is connected to control port, control port is used for inputing RGB coding information.

As a preferred implementation mode, the LED lamp also comprises a power supply voltage, the power supply voltage is connected with the power supply end of the LED lamp bead, and a filter capacitor is arranged between the power supply voltage and the power supply end.

As another preferred embodiment, the input end of the first LED lamp bead and the output end of the last LED lamp bead are both connected in series with a protection resistor, and a protection resistor is connected in series between two adjacent LED lamp beads.

As another preferred embodiment, an NMOS tube for isolation protection is further disposed between the input end and the control port of the first LED lamp bead.

As another preferred embodiment, the LED lamp beads are full-color LED lamp beads.

In another preferred embodiment, the LED matrix circuit displays the far-field speech pattern to show different states of the far-field speech system of the television.

The utility model has the advantages that:

the utility model provides a hardware device which uses LED matrix to display different states of far field voice system in far field voice mode; the problem that in a far-field voice mode, a user cannot know the state of a current far-field voice system and gives an invalid instruction to influence use experience is solved, and the far-field communication experience of the current user is greatly improved; the utility model discloses simple, application scope is wide, portability is strong, can wide application in smart television's far field communication state control scene, and this LED matrix circuit is except showing far field voice system state, also can be applied to smart television according to actual demand on, shows other states of current smart television.

Drawings

Fig. 1 is a circuit structure diagram of an LED matrix circuit according to an embodiment of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Examples

An LED matrix circuit for displaying different states is generally applicable to an intelligent television with a far-field voice function, and is a state display circuit used by the intelligent television in a far-field control scene, as shown in FIG. 1, FIG. 1 is a circuit structure diagram of the LED matrix circuit, in the embodiment, four full-color LED lamp beads are used in series, a recommended value of a power supply voltage VCC is 5V, and in specific application, the recommended value can be adjusted according to the electrical characteristics of the selected LED lamp beads, a capacitor C1, a capacitor C2, a capacitor C3 and a capacitor C4 are filter capacitors at the power supply ends of the LED lamp beads, and the recommended value is 100 nf; the LED lamp bead protection circuit is characterized in that a protection resistor R4 and a protection resistor R8 are respectively connected in series in front of and behind an LED matrix, the recommended resistance value is 500 ohms, and meanwhile a protection resistor R5, a protection resistor R6 and a protection resistor R7 are respectively connected in series between the output end DOUT and the input end DIN of two adjacent LED lamp beads; an input end DIN of the first LED lamp bead is connected to a CONTROL port LED _ CONTROL, the CONTROL port LED _ CONTROL is used for inputting RGB (red, green and blue) coding information, an NMOS (N-channel metal oxide semiconductor) tube Q1 is connected between the CONTROL port LED _ CONTROL of the intelligent television main chip SOC and an LED matrix for isolation protection, and therefore a reverse direction exists between an actual output waveform and preset parameters.

The working principle of the LED matrix circuit is explained in detail below:

the LED matrix circuit can be directly controlled by a user instruction under the condition that a television is in a far-field communication, the LED matrix is controlled according to the current state of a far-field system when the television works, the position of the LED matrix is placed at the frame position of a television product along with a mic, the user can conveniently check the LED matrix, the display of television content is not influenced, under the actual far-field communication scene, the display state of the LED matrix is controlled by a main chip SOC of the intelligent television through a CONTROL port LED _ CONTROL according to the current state of a far-field voice system, four full-color LED lamp beads enter a reset state after a power supply voltage VCC is electrified, the main chip SOC of the intelligent television sends RGB coding information to the LED matrix through the CONTROL port LED _ CONTROL, an input end DIN of a first LED lamp bead receives corresponding coding information, the transmission mode of single period is shown in a table I, 96-bit RGB coding information is transmitted in each period, a start bit and an end bit can be added before and after the RGB coding, after 24-bit RGB coding information which is sent is extracted by a first LED lamp bead, the remaining 72-bit RGB coding information is subjected to internal processing and is forwarded and output to the next LED lamp bead which is connected in series through an output end DOUT, 24 bits of RGB coding information are reduced after transmission of each LED lamp bead, each LED lamp bead displays corresponding colors according to the extracted 24-bit RGB coding information, and the specific processing process and display of the RGB coding information are determined by the actually selected LED lamp beads.

Watch 1

The above-mentioned embodiments only express the specific embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims

1. The LED matrix circuit for displaying different states is characterized by comprising a plurality of LED lamp beads which are sequentially connected in series, wherein the input end of a first LED lamp bead is connected to a control port, and the control port is used for inputting RGB (red, green and blue) coded information.

2. The LED matrix circuit for displaying different states according to claim 1, further comprising a power supply voltage, wherein the power supply voltage is connected with power terminals of the LED lamp beads, and a filter capacitor is arranged between the power supply voltage and the power terminals.

3. The LED matrix circuit for displaying different states of claim 1, wherein the input end of the first LED lamp bead and the output end of the last LED lamp bead are connected in series with a protection resistor, and a protection resistor is connected in series between two adjacent LED lamp beads.

4. The LED matrix circuit for displaying different states of claim 1, wherein an NMOS tube for isolation protection is further arranged between the input end of the first LED lamp bead and the control port.

5. The LED matrix circuit for displaying different states according to claim 1, wherein the LED lamp beads are full color LED lamp beads.

6. The LED matrix circuit for displaying different statuses according to any one of claims 1 to 5, wherein the LED matrix circuit displays through far-field speech patterns for displaying different statuses of a far-field speech system of a television.