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Plasma display apparatus and method of driving the same

A display device, plasma technology, applied in static indicators, identification devices, instruments, etc., can solve the problems of reducing the number of sustain pulses, reducing the brightness of the PDP, increasing the addressing period, etc., to improve the brightness, reduce the addressing period, and stabilize the The effect of the entire discharge

Inactive Publication Date: 2006-10-18
LG ELECTRONICS INC
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, according to the prior art, since the widths of scan pulses of all subfields are the same in one frame including subfields selected at different frequencies according to the brightness difference of the screen, the address period increases so that the sustain period after the address period decrease, and the number of sustain pulses decreases
Therefore, the brightness of the PDP decreases

Method used

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  • Plasma display apparatus and method of driving the same
  • Plasma display apparatus and method of driving the same
  • Plasma display apparatus and method of driving the same

Examples

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no. 1 example

[0220] An embodiment of a driving method of a plasma display device according to the present invention will be described in FIG. 12 .

[0221] 12A and 12B illustrate a first embodiment of a driving method for a plasma display device applying a reset pulse according to the present invention.

[0222] As shown in FIGS. 12A and 12B, according to the first embodiment of the driving method of the plasma display device (wherein the plasma display device includes scan electrodes, sustain electrodes, and a plurality of address electrodes intersecting the scan electrodes and the sustain electrodes), in one frame The amplitude of the reset pulse applied to the scan electrode in the reset period of the low gray level subfield among the plurality of subfields is greater than the amplitude of the reset pulse applied to the scan electrode in the reset period of the remaining subfields.

[0223] For example, as shown in FIG. 12A, when one frame includes eight subfields, the amplitude V2 of t...

no. 2 example

[0247] According to the first embodiment of the driving method of the plasma display device, the amplitude of the reset pulse is controlled in a low gray scale subfield of a plurality of subfields in one frame. However, it is also possible to control the amplitude of the reset pulse in a high grayscale subfield of a plurality of subfields in one frame, which will be described with reference to the second embodiment of the driving method for a plasma display device using a reset pulse according to the present invention .

[0248] 16A and 16B illustrate a second embodiment of a driving method for a plasma display device applying a reset pulse according to the present invention.

[0249] As shown in FIGS. 16A and 16B, according to the second embodiment of the driving method of the plasma display device (wherein the plasma display device includes a scan electrode, a sustain electrode, and a plurality of address electrodes intersecting the scan electrode and the sustain electrode),...

no. 3 example

[0273] As described above, the amplitude of the reset pulse applied to the scan electrode in the reset period of the subfield included in one frame is controlled in the low gray scale subfield or in the high gray scale subfield. However, unlike the above, the reset pulses of the subfields included in one frame may be determined to have three or more different voltage values. Such a driving method will be described with reference to a third embodiment of the driving method for a plasma display device applying a reset pulse according to the present invention.

[0274] 20A and 20B illustrate a third embodiment of a driving method for a plasma display device applying a reset pulse according to the present invention.

[0275] 20A and 20B, according to the third embodiment of the driving method of the plasma display device (wherein the plasma display device includes scan electrodes, sustain electrodes, and a plurality of address electrodes intersecting the scan electrodes and the su...

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Abstract

A plasma display apparatus and a method of driving the same, more particularly to, a plasma display apparatus considering the gray level values of sub-fields and a method of driving the same are provided. The plasma display apparatus controls the magnitudes of reset pulses or the widths of scan pulses in units of sub-fields thereby improving contrast, preventing driving margins from deteriorating, stabilizing discharges and improving brightness.

Description

technical field [0001] This document relates to a plasma display device and a driving method thereof. Background technique [0002] Generally, a plasma display apparatus includes a plasma display panel (PDP) in which barrier ribs formed between an upper surface substrate and a lower surface substrate form a unit cell. A main discharge gas such as Ne, He, and Ne+He and an inert gas including a small amount of xenon are filled in each cell. When a discharge is generated by a high frequency voltage, the inert gas generates vacuum ultraviolet (UV) and emits light from the fluorescent material formed between the barrier ribs to realize an image. [0003] figure 1 The structure of a general PDP is explained. [0004] Such as figure 1 As shown, according to the PDP, an upper surface substrate 100 is obtained by arranging a plurality of electrode pairs consisting of scan electrodes 102 and sustain electrodes 103 on an upper surface glass as a display surface on which an image is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/28G09F9/313G09G3/20H01J17/49
CPCG09G3/2037G09G3/2927G09G3/293G09G3/2932G09G3/2935G09G3/2948G09G2310/0218G09G2310/066G09G2320/0238G09G2360/16G09G3/292G09G3/296
Inventor 明大振文圣学
Owner LG ELECTRONICS INC
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