ELECTRONIC BLACKBOARD
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United States of America Patent
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Issued Date -
Mar 4, 2021
app pub date -
Sep 26, 2019
filing date -
Sep 27, 2018
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Abstract
The present disclosure relates to an electronic blackboard, including a liquid crystal display panel and at least one metal panel, wherein the liquid crystal display panel includes a liquid crystal screen, and a surface of the liquid crystal screen is provided with a glass board; the metal panel comprises a first metal sheet, a supporting board and a second metal sheet, with same being sequentially arranged; and a surface of the first metal sheet is coated with a coating for writing on with a piece of chalk or a stylus pen.
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