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Display Interface Circuit

  • US 20120287140A1
  • Filed: 03/14/2012
  • Published: 11/15/2012
  • Est. Priority Date: 05/13/2011
  • Status: Abandoned Application
First Claim
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1. A display interface circuit for coordinating a processor and a display panel of a mobile device, the interface circuit comprising:

  • an analog circuit module, comprising a physical layer circuit, for receiving and modulating an original data signal and an original clock signal provided by the processor, and respectively generating a data signal and a clock signal accordingly, to conform to an industry specification;

    a frame buffer, for storing the data signal according to an access signal and the clock signal, and outputting the data signal to the display panel according to a command signal; and

    a digital circuit module, comprising;

    a display serial interface (DSI), coupled to the physical layer circuit, for transmitting the data signal and the clock signal through packetization;

    a memory controller, coupled between the display serial interface and the frame buffer, for generating the access signal according to the data signal and the clock signal;

    a configuration register, for generating the command signal according to an asynchronous clock signal and the data signal; and

    an asynchronous delay circuit, coupled between the display serial interface and the configuration register, for adjusting a clock latency taken for the clock signal to be sent to the configuration register, to generate the asynchronous clock signal.

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