Diaphragm, glass and mobile terminal with diaphragm

Diaphragm, glass and mobile terminal with diaphragm

  • CN 104,441,838 A
  • Filed: 12/09/2014
  • Published: 03/25/2015
  • Est. Priority Date: 12/09/2014
  • Status: Active Application
First Claim
Patent Images

1. a diaphragm, it is characterized in that, comprise hyaline layer and at least two-layer heat discoloration layer that color changes under heat discoloration critical temperature value, described hyaline layer and each described heat discoloration layer stacked on top of one another are arranged, and the heat discoloration critical temperature value of at least two-layer adjacent described heat discoloration layer is different.

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