Key circuit and using method thereof, TV key panel, display device

A display device and button technology, applied in keyboard coding, electrical digital data processing, instruments, etc., can solve the problem that the mainboard button lines are not compatible with each other, and achieve the effect of reducing costs and simplifying the process

Active Publication Date: 2016-09-28
K TRONICS (SUZHOU) TECH CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 d

Method used

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  • Key circuit and using method thereof, TV key panel, display device
  • Key circuit and using method thereof, TV key panel, display device
  • Key circuit and using method thereof, TV key panel, 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 invention relates to a key circuit and a using method thereof, a TV key panel and a display device. The key circuit includes a first sampling end, a second sampling end and a common end and also includes at least one key branch circuit connected between the first sampling end and the common end, at least one key branch circuit connected between the second sampling end and the common end and at least one key branch circuit connected between a first node and the common end. The first node is connected with the first sampling end through a first on-off element. The first node is connected with the second sampling end through a second on-off element. The first on-off element and the second on-off element can both switch between a conduction state and a break-off state under external control. The invention solves a problem that main board key circuits from different manufacturers cannot be compatible to each other, so that a main board design with compatibility of different types is realized. Working procedure simplification and cost reduction are facilitated.

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 in the A corresponding voltage dividing resistor is designed 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 ...

Claims

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Application Information

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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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