PLASMA DISPLAY DEVICE
Provided is a technique relating to a scan driver of a PDP device which is capable of ensuring or improving performances of power consumption and temperature in an arrangement configuration of a substrate and a plurality of ICs, particularly, also in an area including an IC at a second position from the top. A scan driver ( 122 ) comprises, for example, two substrates ( 20 ) at the top and bottom that mount a plurality of ICs ( 30 ) having a plurality of outputs and are connected to terminals ( 40 ) of a Y electrode. Part of the plurality of ICs ( 30 ) on the substrate ( 20 ) has some outputs of the plurality of outputs are not connected to the terminals of the Y electrodes, and one (# 2 ) of the ICs is arranged at a second position from the top in a device arrangement configuration.
1 . A plasma display device comprising:
a plasma display panel having a first electrode group used in scan driving; and
a first circuit for driving the first electrode group, wherein
the first circuit includes a scan driver for applying a scan pulse to the first electrode group, respectively,
the scan driver comprises one or more substrates on which a plurality of ICs are loaded, each IC having a plurality of outputs connected to terminals of the first electrode group,
part of outputs among the plurality of outputs of the IC of a first type, which is part of the plurality of ICs on the substrate is not connected to the terminals of the first electrode group, and
one of the ICs of the first type is disposed at a second position from the top in a device arrangement configuration.
2 . The plasma display device according to claim 1 , wherein
the scan driver comprises at least two substrates, upper one and lower one, on which the ICs having the plurality of outputs connected to the terminals of the first electrode group are loaded, and
the group of the ICs of the upper substrate has a smaller rate of the outputs of the ICs connected to the first electrode group than the group of the ICs of the lower substrate.
3 . The plasma display device according to claim 1 , wherein
the scan driver comprises at least two substrates, upper one and lower one, on which the plurality of ICs having the plurality of outputs connected to the terminals of the first electrode group are loaded,
a number of the connections from the upper substrate to the terminals of the first electrode group and a number of the connections from the lower substrate to the terminals of the first electrode group are the same, and
a number of the ICs of the upper substrate is larger than a number of the ICs of the lower substrate.
4 . The plasma display device according to claim 1 , wherein
at least two ICs of the first type are present; and
in the two ICs of the first type, the outputs connected to the first electrode group and the outputs not connected to the first electrode group have mutually opposite arrangements, wherein the ICs are operated by simultaneously inputting data for determining output timing of the scan pulses.
5 . The plasma display device according to claim 1 , wherein
each of the ICs in the scan driver is operated so as to output the scan pulses in accordance with input of data which determines output timing of the scan pulses, and the data is shifted by a shift register incorporated in the IC, and data of a last output bit in the IC is input to the IC at a next position, thereby sequentially applying the scan pulses to the first electrode group; and
a first shift register is connected to a preceding stage of a data input part or a subsequent stage of an output part of the IC of the first type, and the first shift register shifts the input or output of the data, thereby continuously applying the scan pulses to the first electrode group.
6 . The plasma display device according to claim 5 , wherein
a number of bits of the first shift register is same as a number of bits of the outputs of the IC of the first type connected to the first electrode group.
7 . A plasma display device comprising:
a plasma display panel having a first electrode group used in scan driving; and
a first circuit for driving the first electrode group, wherein
the first circuit has a scan driver for applying a scan pulse to the first electrode group, respectively,
the scan driver comprises at least two substrates, upper one and lower one, on which a plurality of ICs having a plurality of outputs connected to terminals of the first electrode group are loaded, and
the upper substrate is larger than the lower substrate among the at least two substrates.
8 . A plasma display device comprising:
a plasma display panel having a first electrode group used in scan driving; and
a first circuit for driving the first electrode group, wherein
the first circuit has a scan driver for applying a scan pulse to the first electrode group, respectively;
the scan driver comprises at least two substrates, upper one and lower one, on which a plurality of ICs having a plurality of outputs connected to terminals of the first electrode group are loaded; and,
among the at least two substrates, in the upper substrate, a distance between the mounted ICs is wider than that in the lower substrate.