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    • 3. 发明申请
    • DRIVE CIRCUIT AND DISPLAY DEVICE
    • 驱动电路和显示设备
    • US20090262124A1
    • 2009-10-22
    • US12309866
    • 2007-06-14
    • Keiichi YamamotoAsahi YamatoKohji SaitohAkizumi FujiokaToshihiro Yanagi
    • Keiichi YamamotoAsahi YamatoKohji SaitohAkizumi FujiokaToshihiro Yanagi
    • G06F12/02
    • G09G3/3611G09G2310/08G09G2320/0252G09G2320/041G09G2340/16
    • In one embodiment of the present invention, LUTs (T3) through (T5) are stored in a table memory. When an overshoot calculation section switches over from the LUT (T4), which is being used, to the LUT (T5), the overshoot calculation section obtains the LUT (T5) not out of an external memory but out of the table memory. At this time, in order that the overshoot calculation section can switch over quickly from the LUT (T5) to an LUT (T6) at the next time, a table managing section deletes, from the internal memory, the LUT (T3) to which the LUT (T5) does not switch over directly, meanwhile the table managing section obtains the LUT from the external memory so as to store the LUT (T6) in the table memory. With the arrangement, it becomes possible for a drive circuit to (i) operate at the same processing speed as a drive circuit in which all tables are stored in the internal memory, and simultaneously, (ii) reduce the amount of memory.
    • 在本发明的一个实施例中,LUT(T3)至(T5)被存储在表存储器中。 当过冲计算部分从正在使用的LUT(T4)切换到LUT(T5)时,过冲计算部分获得不在外部存储器中而不在表存储器中的LUT(T5)。 此时,为了使冲突计算部能够在下一次从LUT(T5)迅速切换到LUT(T6),表管理部从内部存储器中删除LUT(T3) LUT(T5)不直接切换,同时表管理部分从外部存储器获取LUT,以便将LUT(T6)存储在表存储器中。 通过这种布置,驱动电路可以(i)以与所有表存储在内部存储器中的驱动电路相同的处理速度进行操作,并且同时(ii)减少存储器的量。