Penetration attack preventing liquid crystal touch screen

• Main Authors: XIAO FENG, CHEN YANGJIAN
• Format: Patent
• Language: Chinese; English
• Published: 24.10.2012
• Subjects: CALCULATING; COMPUTING; COUNTING; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC DIGITAL DATA PROCESSING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The invention relates to a penetration attack preventing liquid crystal touch screen, comprising a liquid crystal touch screen. The penetration attack preventing liquid crystal touch screen is characterized in that N coil circuits are arranged on the liquid crystal touch screen; when the coil circuit is opened, the change of an electric signal of the coil circuit triggers an alarm mechanism; and N is a natural number. According to the invention, the penetration attack preventing liquid crystal touch screen has a protective device capable of preventing penetration attack; therefore, parts for preventing the penetration attack are reduced so that the cost is reduced; and system reliability is improved.