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Liquid crystal electronic writing board

A tablet and electronic technology, applied in electrical components, circuit devices, instruments, etc., can solve problems such as affecting work efficiency and application troubles of liquid crystal electronic tablet

Inactive Publication Date: 2018-09-18
SHENZHEN AONMI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing liquid crystal electronic writing board usually only has a one-key erase function, but it cannot meet the needs for partial revision and partial deletion of the contents of the liquid crystal display.
When there is an error in writing, it can only be erased with one key, which affects work efficiency and brings troubles to the application of LCD electronic writing boards

Method used

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  • Liquid crystal electronic writing board
  • Liquid crystal electronic writing board
  • Liquid crystal electronic writing board

Examples

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Embodiment Construction

[0044] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0045] The present invention will be described below in conjunction with the accompanying drawings.

[0046] like figure 1 As shown, the embodiment of the present invention provides a liquid crystal electronic writing board, including an erasing pen 100 and a writing board 200;

[0047] The erasing pen 100 includes a casing 10, an erasing switch S1, a wireless transmitting circuit 3 and a first power supply circuit 4, and the erasing switch S1, the wireless transmitting circuit 3 and the first power supply circuit 4 are all arranged on the casing 10 Inside, the erasing switch S1 is electrically connected to the first power supply circuit 4 through the wireless transmitting circuit 3;

[0048] The writing board 200...

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PUM

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Abstract

The invention relates to a liquid crystal electronic writing board, which comprises an erasing pen and a writing board. The erasing pen comprises a shell, an erasing switch S1, a wireless transmittingcircuit and a first power supply circuit. The erasing switch S1, the wireless transmitting circuit and the first power supply circuit are all arranged in the shell. The erasing switch S1 is electrically connected with the first power supply circuit through the wireless transmitting circuit. The writing board comprises a wireless receiving circuit which is in wireless connection with the wirelesstransmitting circuit. The writing board further comprises a controller, an output waveform generator, a liquid crystal display screen and a second power supply circuit. The wireless receiving circuitand the output waveform generator are electrically connected with the controller. The output waveform generator is electrically connected with the liquid crystal display screen. The wireless receivingcircuit, the controller and the output waveform generator are electrically connected with the second power supply circuit. The liquid crystal electronic writing board provided by the invention can realize the local erasing function.

Description

technical field [0001] The invention relates to the technical field of electronic writing, in particular to a liquid crystal electronic writing board. Background technique [0002] LCD electronic writing board has been gradually loved by people due to its advantages of simple writing, environmental protection without dust, reusable, thin and light product, and one-key clearing. It is also used in various fields, such as life, office, school, etc. The existing liquid crystal electronic writing board usually only has a one-key erasing function, but it cannot meet the needs for partial revision and partial deletion of the contents of the liquid crystal display. When there is an error in writing, it can only be erased with one key, which affects work efficiency and brings troubles to the application of LCD electronic writing boards. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a liquid crystal electronic writing ...

Claims

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Application Information

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IPC IPC(8): G09G3/36H02J50/00
CPCG09G3/36H02J50/00
Inventor 刘江
Owner SHENZHEN AONMI TECH CO LTD
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