a display terminal

Abstract

The invention discloses a display terminal which comprises an earphone interface circuit, a service interface circuit, a shared interface terminal and a display terminal main board. The earphone interface circuit is used for receiving an acoustic signal output by the display terminal main board and then sending the acoustic signal to the shared interface terminal. The service interface circuit is used for performing data mutual exchanging between the shared interface terminal and the display terminal main board. The shared interface terminal is respectively connected with the earphone interface circuit, the service interface circuit, an outer audio device and an outer data transmission device. The display terminal main board is respectively connected with the earphone interface circuit and the service interface circuit. A diverter switch circuit is further arranged on a circuit between the shared interface terminal, the earphone interface circuit and the service interface circuit. According to the display terminal, people only need one interface to achieve functions of an original earphone interface and a service interface, therefore, the area of an occupied PCB is reduced substantially, the size of the PCB is reduced, saving of precious space of a user is facilitated, and the display terminal is convenient to use in daily work and daily life for the user.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display terminal. Background technique [0002] Along with the continuous development of human science and technology, household appliances such as computers, televisions, video cameras, and cameras have become more and more popular in people's daily lives, and have become an indispensable part of people's lives. [0003] For the current display terminals such as monitors, there are not only headphone jacks for sound output, but also service interfaces, which are used for program writing, debugging and use in the equipment development stage, and for customer service after sales. Used for upgrade and maintenance. Most of the current display terminals have these two functional designs. [0004] However, for the current display terminal, the headphone jack and the service interface on it are circuit structures designed separately. Therefore, the separate design of the ...

AI Technical Summary

Problems solved by technology

[0004] However, for the current display terminal, the headphone jack and the service interface on it are circuit structures designed separately. Therefore, the separate design of the functions of the earphone jack and the service interface will lead to a relatively large area of ​​the printed circuit board (PCB). The size of the PCB is increased, and the display terminal cannot be made smaller and thinner, so it cannot save the precious space of the user, and it is inconvenient for the user to use in daily work and life

At the same time, the earphone jack and the service interface are designed separately. The use of these two interfaces and their respective peripheral circuit parts will also increase the production cost of the display terminal, which is not conducive to the promotion and application of the display terminal in the market.

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