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Display panel including a plurality of drivers having common wires each for providing reference voltage

  • US 7,474,306 B2
  • Filed: 10/19/2005
  • Issued: 01/06/2009
  • Est. Priority Date: 12/16/1999
  • Status: Expired due to Fees
First Claim
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1. A display panel comprising:

  • a plurality of display elements arranged in a matrix pattern;

    a plurality of drivers each for driving a display element of the plurality of display elements, each of the plurality of drivers including;

    a plurality of input-side pads, each input-side pad receiving a reference voltage;

    a plurality of output-side pads, each output-side pad outputting the reference voltage;

    a plurality of in-chip reference voltage wires, each in-chip reference voltage wire directly connecting each input-side pad to each output-side pad to transmit the reference voltage;

    a plurality of branch reference voltage wires, each branch reference voltage wire branching off from each in-chip reference voltage wire and transmitting the reference voltage in parallel with each in-chip reference voltage wire;

    a plurality of buffers, each buffer coupled to each branch reference voltage wire and outputting an output voltage in response to the reference voltage transmitted by each branch reference voltage wire; and

    a selection circuit selecting a voltage for driving the display element in response to output voltages of the plurality of buffers,a plurality of inter-chip reference voltage wire units, each inter-chip reference voltage wire unit interposed between any two adjacent drivers of the plurality of drivers and including a plurality of inter-chip reference voltage wires, each inter-chip reference voltage wire connecting each output-side pad of one driver of the two adjacent drivers to each input-side pad of the other driver of the two adjacent drivers;

    a reference voltage production circuit capable of producing a plurality of reference voltages to drive the plurality of drivers; and

    a reference voltage providing wire unit capable of receiving the plurality of reference voltages and providing the plurality of reference voltages to one of the plurality of drivers and including a plurality of reference voltage providing wires, each reference voltage providing wire coupled to each in-chip reference voltage wire via each input-side pad of the one of the plurality of drivers to provide a reference voltage.

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