Lg Electronics Inc.

Yang Ki An

Yun Kwon Jung

Sang Jun Lee

Janghwan Cho

Sung Kwang Cho

Yunkwon Jung

Kyung Ryeol Shim

Jinyoung Kim

Chang Young Kwon

Muk Hee Kim

Dong Kwon Choi

Kyu Choon Cho

Jong Sik Lim

Donghyuk Park

Changyoung Kwon

Jang Hyun Lim

Hyun Il Park

Hyun Ii Park

There is provided a plasma display device using a driving device for supplying driving signals to a plasma display panel (PDP). In a sustain falling period that at least partially overlaps the rising period of reset signals supplied to scan electrodes formed on the PDP, a voltage supplied to sustain electrodes is gradually reduced and a positive polar voltage is supplied to address electrodes. In driving the PDP, gradually falling signals are supplied to the sustain electrodes in the rising period of the reset signals so that the driving margin of the PDP can be secured. The positive polar voltage is supplied to the address electrodes so that initialization discharge can be stably performed and that the erroneous discharge of the plasma display device can be reduced.

Plasma display device

The present invention relates to a plasma display apparatus including a sustain driving apparatus that supplies a sustain signal to a panel. The plasma display apparatus includes a panel in which a front substrate having formed first and second electrodes therein and a rear substrate are coalesced, a sustain driver including a first switch for applying a first voltage to any one of the first and second electrodes and a second switch for applying a second voltage, and a circuit protection unit that controls one of the first and second switches, which has a voltage higher than a predetermined voltage, at its both ends, not to turn on. According to the present invention, when a voltage at both ends of the switch included in the sustain driving apparatus in order to supply the sustain signal is higher than a reference voltage, the switch is controlled not to turn on. It is therefore possible to prevent damage due to the short of the sustain driving apparatus and, therefore, to improve the lifespan and reliability of a product.

Plasma display apparatus

A plasma display apparatus is disclosed. A scan driver of the plasma display apparatus supplies a voltage of a scan signal of a negative polarity direction and a voltage of a sustain signal to a scan electrode using one voltage source. Further, a sustain driver of the plasma display apparatus supplies a voltage of a sustain signal and a sustain bias voltage to a sustain electrode using one voltage source.

The present invention provides a plasma display apparatus comprising a second driver supplying a first bias signal with a voltage maintained at a first bias voltage in a reset period and an address period, a first sustain rising signal that gradually rises from the first bias voltage to a second bias voltage, and a second bias signal with a voltage maintained at the second bias voltage, to the second electrode.

Plasma display apparatus and driving method of plasma display apparatus

A plasma display apparatus and a driving method thereof are disclosed. The plasma display apparatus comprises a plasma display panel in which a plurality of electrodes are formed, an energy storage unit for storing energy applied to the electrodes, and a protector for maintaining a voltage level of the energy stored in the energy storage unit at a predetermined voltage range.

Plasma display apparatus and driving method thereof

Growing community of inventors

Gyeongsangbuk-do, South Korea

Yang Ki An