简述制动显示屏(LCDM)的作用？
["LCDM\u4f4d\u4e8e\u53f8\u673a\u5ba4\u64cd\u7eb5\u53f0\uff0c\u662f\u4eba\u673a\u63a5\u53e3\uff0c\u901a\u8fc7\u5b83\u53ef\u8fdb\u884c\u672c\u52a1\uff0f\u8865\u673a\uff0c\u5747\u8861\u98ce\u7f38\u5b9a\u538b\uff0c\u5217\u8f66\u7ba1\u6295\u5165\uff0f\u5207\u9664\uff0c\u5ba2\u8f66\uff0f\u8d27\u8f66\uff0c\u8865\u98ce\uff0f\u4e0d\u8865\u98ce\uff0cCCB-\u2161\u7cfb\u7edf\u81ea\u68c0\uff0c\u98ce\u8868\u503c\u6807\u5b9a\uff0c\u6545\u969c\u67e5\u8be2\u7b49\u529f\u80fd\u7684\u9009\u62e9\u548c\u5e94\u7528\u3002"]