Plasma arc tube display device

A plasma arc tube display device comprising:

• plural arc tube modules each comprising a front-surface substrate which is provided on front surfaces of plural plasma arc tubes and has plural pairs of electrodes placed thereon in a direction orthogonal to a longitudinal direction of the plasma arc tubes such that the pairs of electrodes are in contact with the plasma arc tubes, a back-surface substrate which is provided on back surfaces of the plural plasma arc tubes and has plural electrodes placed thereon in a direction parallel to the longitudinal direction of the plasma arc tubes such that the electrodes are in contact with the plasma arc tubes, and a back-surface frame placed on the back-surface substrate for supporting the plural plasma arc tubes,
• a relay driving circuit having driving circuits adapted to apply a voltage to at least one of the pairs of electrodes, the driving circuits being bonded to the electrodes on the front-surface substrates which are placed on the front surfaces of the plural plasma arc tubes and are folded toward the back-surface substrates at end portions and to the electrodes on the front-surface substrates which are placed on front surfaces of other plasma arc modules adjacent to the plasma arc tube module and are folded toward the back-surface substrates at the end portions, and
• coupling portions for coupling the plasma arc tube modules to the other plasma arc tube module adjacent thereto.

A plasma arc tube display device comprising:

• a front-surface substrate which is provided on front surfaces of plural plasma arc tubes and has plural pairs of electrodes placed thereon in a direction orthogonal to a longitudinal direction of the plasma arc tubes such that the pairs of electrodes are in contact with the plasma arc tubes, each of the pairs of electrodes being constituted by a pair of a sustain electrode X and a scan/sustain electrode Y;
• a back-surface substrate which is provided on back surfaces of the plural plasma arc tubes and has plural address electrodes placed thereon in a direction parallel to the longitudinal direction of the plasma arc tubes such that the address electrodes are in contact with the plasma arc tubes;
• a driving unit which performs processing on signals from external devices, applies driving voltages to the pairs of electrodes and the address electrodes, applies a driving voltage to ones of the pairs of electrodes, in order to select cells which are defined by the pairs of electrodes and the address electrodes and are associated with light emission areas of fluorescent members, in response to the signals, and applies a driving voltage to the pairs of electrodes for causing the fluorescent members to emit light;
• a back-surface frame which is placed on the back-surface substrate in a plasma arc tube module for supporting the plasma arc tube module;
• bonding portions for bonding the electrodes on the front-surface substrate which is placed on a front surface of the plasma arc tube module and is folded toward the back-surface substrate at end portions thereof and the electrodes on the front-surface substrates which are placed on front surfaces of other plasma arc tube modules adjacent to the plasma arc tube module and are folded toward the back-surface substrates at end portions to each other;
• and
• bending portions which can be bent between the bonding portions and the end portions of the respective front-surface substrates in the plasma arc tube module and the other plasma arc tube modules adjacent thereto.