SLAVE DISPLAY DEVICE, SET-TOP BOX, AND SYSTEM OF CONTROLLING DIGITAL CONTENT

摘要

PURPOSE: A slave display device, an STB(Set Top Box), and a digital content control system including the same is provided to conveniently control a TV by controlling the TV through a GUI(Graphic User Interface) provided through the slave display device. CONSTITUTION: An MDD(Master Display Device)(110) receives an image generated for the MDD from an STB(Set Top Box)(100) to display the same. One or more SDDs(Slave Display Devices)(120) receive an image generated for the SDDs from the STB to display the same. The SDDs provide a control screen area for providing control and communication information of the SDDs or MDD to an extra display area. [Reference numerals] (121) Smart phone; (140) Terrestrial broadcasting server; (141) Cable broadcasting server; (150) Public network; (160) ISO server; (161) CP server; (162) CM server; (163) SM server; (AA) Terrestrial TV; (BB) Cable; (CC) GBit protocol; (DD) Internet