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Button circuit and its use method, TV button board, display device

A display device and key technology, applied in keyboard coding, electrical digital data processing, instruments, etc., can solve the problem that the main board key circuits are not compatible with each other, and achieve the effect of reducing costs and simplifying processes

Active Publication Date: 2019-04-12
K TRONICS (SUZHOU) TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects in the prior art, the present invention provides a button circuit and its use method, a TV button board, and a display device, which can solve the problem that the motherboard button circuits of different manufacturers are not compatible with each other

Method used

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  • Button circuit and its use method, TV button board, display device
  • Button circuit and its use method, TV button board, display device
  • Button circuit and its use method, TV button board, display device

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Embodiment Construction

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0030] figure 1 It is a structural schematic diagram of a button circuit in an embodiment of the present invention. see figure 1 , the button circuit includes a first sampling terminal G1, a second sampling terminal G2 and a common terminal GND, and also includes: at least one key branch circuit A1, A2, ..., Am connected between the first sampli...

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Abstract

The present invention relates to a button circuit and its use method, a TV button board, and a display device, wherein the button circuit includes a first sampling terminal, a second sampling terminal and a common terminal, and further includes: connecting the first sampling terminal and the At least one button branch between the common terminals; at least one button branch connected between the second sampling terminal and the common terminal; at least one button connected between the first node and the common terminal branch, the first node is connected to the first sampling end through a first on-off element, and the first node is connected to the second sampling end through a second on-off element; wherein, the first on-off Both the on-off element and the second on-off element can be switched between on-state and off-state by external control. The invention solves the problem that mainboard key lines of different manufacturers are not compatible with each other, can realize multi-type compatible mainboard designs, and helps to simplify procedures and reduce costs.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a button circuit and a method for using the same, a TV button board, and a display device. Background technique [0002] For the existing TV key board, the main board of the public version usually uses 2 or 1 GPIO (General Purpose Input Output, general purpose input and output) signals to do control level sampling through multiple key branches respectively, and each Design corresponding voltage divider resistors in each button branch. Depending on the button design methods of different manufacturers, the common motherboard button circuit has 1 GPIO signal that passes through 7 button branches to divide the voltage to the ground, and there are also 2 GPIO signals that pass through 3 and 4 button branches. Type of partial pressure. Since the mainboard button lines provided by different manufacturers are not compatible with each other, an industrial design product often needs to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M11/20
CPCH03M11/20H03M11/24G06F3/023H03M11/02
Inventor 曹永明
Owner K TRONICS (SUZHOU) TECH CO LTD
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