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a keyboard

A keyboard and key technology, applied in the field of electronics, can solve problems such as missed pressing and heavy pressing, and achieve the effect of reducing the thickness of the keyboard and reducing the space occupied

Active Publication Date: 2017-12-29
LENOVO (BEIJING) LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of this application is to provide a keyboard to solve the problem of heavy pressing and missed pressing caused by reducing the thickness of the keyboard by reducing the key travel while satisfying the conditions of portability and long enough key travel. The problem

Method used

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Embodiment Construction

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0032] The embodiment of the present application discloses a keyboard to solve the problem of heavy pressing and missed pressing caused by reducing the thickness of the keyboard by reducing the key travel while satisfying the conditions of portability and sufficiently long key travel.

[0033] refer to figure 1 Embodiment 1 of the present application provides a keyboard, including a deformation control circuit board 120 and a plurality of keys 110 .

[0034] For different types of keyboard...

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PUM

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Abstract

The invention discloses a keyboard. The keyboard comprises a deformation control circuit board and a plurality of keys, wherein each key comprises a key cap and piezoelectric film, wherein a deformation control circuit is used for controlling the piezoelectric film to be switched between a first form and a second form, so as to change the thickness of the keyboard; when the keyboard is stored or carried, the piezoelectric film can be controlled to be under the first form, so as to minimize the thickness of the keyboard and reduce the occupied space; when the keyboard is used for inputting information to the correponding equipment, the piezoelectric film can be controlled to be under the second form to enable the key caps to be jacked up, and allow the keys to achieve certain key travel. According to the keyboard disclosed by the invention, the movable supporting part in the existing keyboard is substituted with the piezoelectric film, and the corresponding deformation control circuit is arranged to control the thickness of the keyboard, so that the conditions of high convenience in carrying and sufficient length of the key travel are met, and the existing technical problem is solved without reducing key travel.

Description

technical field [0001] The present application relates to the field of electronic technology, in particular to a keyboard. Background technique [0002] The key of the existing keyboard consists of a keycap and a mobile supporting part located below the keycap and connected with the keycap. The information that the key represents is printed on the keycap. When pressure is applied, the mobile supporting part is compressed (the first form), and the thickness decreases; after the pressure disappears, the mobile supporting part automatically pops up (the second form), and the thickness returns to the maximum state. The difference between the thickness of the mobile support component in the normal state and the thickness in the first state is the key stroke. When pressed, the mobile supporting part is compressed to a certain key stroke, so that the detection circuit arranged under the mobile supporting part is turned on, and then the corresponding control logic determines that ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/02H03K17/96
CPCG06F3/0221
Inventor 张强李雪霞
Owner LENOVO (BEIJING) LTD