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Plasma display panel driving method and plasma display device

A plasma and display device technology, applied in the direction of identification devices, static indicators, instruments, etc., to achieve the effect of preventing flickering

Inactive Publication Date: 2008-07-16
HITACHI LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a technical problem of PDP devices, there is a problem of flicker countermeasures

Method used

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  • Plasma display panel driving method and plasma display device
  • Plasma display panel driving method and plasma display device
  • Plasma display panel driving method and plasma display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0031] A PDP device according to Embodiment 1 of the present invention will be described with reference to FIGS. 1 to 4 . The feature of Embodiment 1 is as follows: in each of the conventional odd-numbered and even-numbered fields, both odd-numbered and even-numbered display line groups are continuously driven by time division based on the same data (data of odd-numbered display lines), thereby preventing line flashing.

[0032]

[0033]A block diagram configuration of a PDP apparatus according to Embodiment 1 will be described with reference to FIG. 1 . This PDP device includes a control circuit 110 , a drive circuit unit 150 , and a PDP 10 . In addition, in an embodiment described later, a character information determination unit 120 and the like are further provided. The control circuit 110 has a display data control unit 111 including a frame memory (field memory) 112 , an identification circuit unit 113 , a panel drive control unit 114 , and the like. The control cir...

Embodiment approach 2

[0057] Next, a PDP apparatus according to Embodiment 2 of the present invention will be described with reference to FIG. 5, FIG. 6, and the like. In the second embodiment, the basic configuration is the same as that in the first embodiment, but a blank time generated in the field configuration (F') is arranged at the end of the periods of the first half and the second half of the second field configuration (F').

[0058]

[0059] In FIG. 5 , a drive sequence configuration (a first configuration example) according to Embodiment 2 will be described. For each field (Fo, Fe) of image frame (f), by TF2, the first half field (example: F1-A) and the second half field (example: F1-A) in the second field formation (F') under the second control are discriminated : F1-B) time. Then, for the basic field configuration (F, F') shown in FIG. 3 above, as shown in FIG. 5, in the second field configuration (F'), there is a blank time for driving (rest time). The blank time is a time ...

Embodiment approach 3

[0066] Next, a PDP apparatus according to Embodiment 3 of the present invention will be described using FIG. 7 . In Embodiment 3, the basic configuration is the same as that of Embodiment 1, etc. In the second field configuration (F') relative to the first field configuration (F), the time lengths of the first half and the second half (F-A, F-B) are set Assignments vary for each field.

[0067] In FIG. 7, for the image frame (f), the display time of the field (F) and the display line group is determined by VS and HS. The second field constituted by TF2 discrimination under the second control (F'). For example, F1-A and F1-B are formed corresponding to the first field (F1) as the odd field (Fo), and F2-A and F2-B are formed corresponding to the second field (F2) as the even field (Fe). Through the control of Embodiment 3, in this example, first, in the first field (F1), the first half (F1-A) is relatively shorter and the second half (F1-B) is relatively longer. Next, in ...

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Abstract

The invention relates to a driving method of a plasma display panel and a plasma display device. A technique for preventing flicker (particularly line flicker in interlace display) from occurring is provided with respect to a PDP device. This PDP apparatus utilizes the control operation of the control circuit, in the existing odd-numbered and even-numbered fields (Fo, Fe), as a new field configuration (F'), based on the same data (data of odd-numbered display lines) in the first half (F -A) and the second half (F-B) continuously drive both the odd-numbered and the even-numbered display line groups (TLo, TLe).

Description

technical field [0001] The present invention relates to a driving method of a plasma display panel (PDP), a plasma display device (PDP device) equipped with a PDP, and particularly relates to an interlaced drive display of a display line group of a field, and the like. Background technique [0002] The following methods are used in PDP drive display: sequentially driving and displaying all display line groups in the PDP display area in one field (Progressive mode: progressive mode), driving and displaying odd or even numbers in the PDP display area in one field One method of displaying line groups (interlace method: interlaced method) and the like. In the interlaced method, for example, an odd-numbered display line group is driven and displayed in an odd-numbered field, and an even-numbered display line group is driven and displayed in a subsequent even-numbered field, and an image frame is displayed by combining the odd-numbered and even-numbered fields. In a PDP device of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/28G09G3/20H01J17/49G09F9/313G09G3/288G09G3/291G09G3/298
CPCG09G3/204G09G3/294G09G3/299G09G2310/0218G09G2310/0224G09G2320/0247G09G3/291G09G3/296
Inventor 仲野亮田岛正也野口泰司
Owner HITACHI LTD