Drive circuit of active matrix type display device and manufacturing method thereor
OwnerJun Koyama, Yuji Kawasakiinventors
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Abstract
A data holding control signal for each data line is supplied to a plurality of source followers that are connected together in parallel. The parallel-connected source followers are a combination of at least one first follower that is illuminated with laser light only once and at least one second follower that is illuminated twice. A width of the laser light illumination for crystallization is equal to a pitch of the source followers multiplied by an integer that is not less than 3.
Claims16
A drive circuit of an active matrix type display device, comprising:
- analog switches;
- analog memories each including a capacitor;
- and
- analog buffers each including a plurality of source followers connected together in parallel, each of the source followers having a thin-film transistor.
An active matrix device comprising:
- a plurality of active matrix elements arranged in a matrix form on a substrate;
- a plurality of data lines for supplying video signal to said active matrix elements, each of said data lines provided with an analog buffer;
- and
- a plurality of gate lines for scanning said active matrix elements, wherein said analog buffer comprises at least two source followers connected in parallel with each other.
A manufacturing method of an active matrix type display device comprising analog switches, analog memories each including a capacitor, and analog buffers each including thin-film transistors, wherein said manufacturing method includes a laser crystallization step, and a width L of laser light illumination is equal to nd, where n is an integer and d is a width of each of the analog buffers.
Dependencies are inferred from the claim text.