发明名称 |
Display control semiconductor integrated circuit |
摘要 |
The present invention provides a display control semiconductor integrated circuit having therein a RAM, capable of repairing a defective bit included in the RAM and improving the yield without significantly increasing the occupation area. A liquid crystal controller/driver in which a RAM for storing display data is provided in a chip and the storage capacity of the built-in RAM is determined according to the size of a display screen of a liquid crystal panel to be driven, includes a fuse circuit for setting a defect address, and a comparing circuit for comparing the defect address set in the fuse circuit with an input address. The liquid crystal controller/driver also has a redundant circuit, when the addresses match each other, for replacing the input address with an address that instructs the spare memory area and supplying the address to an address decoder. |
申请公布号 |
US8068113(B2) |
申请公布日期 |
2011.11.29 |
申请号 |
US20070650417 |
申请日期 |
2007.01.08 |
申请人 |
IIZUKA MASARU;SHIRAISHI IORI;TSUJI SOSUKE;KINNO HIROTO;RENESAS ELECTRONIC CORPORATION |
发明人 |
IIZUKA MASARU;SHIRAISHI IORI;TSUJI SOSUKE;KINNO HIROTO |
分类号 |
G09G5/39;G11C7/00;G11C29/00 |
主分类号 |
G09G5/39 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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