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Ambipolar asymmetric maintenance impulse driving circuit and its driving method

A technology of sustaining pulses and driving circuits, applied in cold cathode tubes, instruments, identification devices, etc., can solve the problems of inconsistent discharge intensity, low brightness of the whole screen, etc., to improve the brightness of the whole machine, improve the brightness of the whole screen and light The effect of efficiency

Inactive Publication Date: 2006-09-06
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The image display driving method of the existing groove-type plasma display panel adopts the traditional pulse driving method with the same positive and negative pulse width and voltage amplitude in the maintenance period. In the plasma display panel, during the maintenance period, the discharge intensity generated by the positive sustain pulse voltage and the discharge intensity generated by the negative sustain pulse voltage are inconsistent, so that the brightness of the entire screen is not high

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  • Ambipolar asymmetric maintenance impulse driving circuit and its driving method
  • Ambipolar asymmetric maintenance impulse driving circuit and its driving method
  • Ambipolar asymmetric maintenance impulse driving circuit and its driving method

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Embodiment Construction

[0029] The embodiment of bipolar asymmetric sustaining pulse circuit driving method is as follows:

[0030] Voltage control drive circuit 1 is composed of programmable logic chip IR2110 or IR2113 or SN75372 or TC4426 field effect transistor drive chip, etc. to control the voltage pulse signal XNEH, XNEL, XEFH, XEFL, XG1H, XAEH, XAEL, XPZL, XDD is respectively connected to the gates of the field effect transistors "M1, M2, M4, M5, M6, M7, M8, M9, M10". According to different time constants, the opening and closing time of the field effect transistors are controlled to ensure dual Realization of polarity asymmetry maintaining pulse circuit function;

[0031] Positive voltage maintaining voltage pulse generator 2 mainly includes field effect transistors M1, M2, M3, M4, fast recovery diodes D1, D2, resistors R1, R2, voltage regulator tube ZD1;

[0032] Positive voltage energy recovery and holding circuit 3 mainly includes field effect transistors M7, M8, fast recovery diodes D3, ...

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Abstract

Wherein, the drive circuit comprises: a voltage-control drive circuit (1) with output end connected to a positive / negative-voltage maintaining impulse-voltage generator (2) / (4), a positive / negative- voltage energy recovery holding circuit (3) / (5), and a PDP high-voltage row-drive IC chip (6) with output end connected to the slot-type plasma input end of display panel (7). Wherein, the output end of energy recovery holding circuit connects to the input end of impulse-voltage generator that has output end connects with the input end of (6).

Description

technical field [0001] The invention relates to an image display driving method applied to a slot-type plasma display panel, in particular, a bipolar asymmetric sustain pulse circuit driving method is adopted to improve the positive and negative sustain of the slot-type plasma display panel during the sustain period. The phenomenon of uneven pulse discharge improves the luminous brightness of the entire screen of the slot-type plasma display panel. Background technique [0002] The plasma flat panel display (PDP), which emerged in the early 1990s, has attracted widespread attention for its advantages of digitization, large screen, high resolution, high definition, wide viewing angle, thin thickness and light weight. [0003] At present, the existing PDP screens all use a three-electrode AC plasma flat panel display (AC-PDP). Sustain electrodes (X electrodes) and scan electrodes (Y electrodes), both of which are called display electrodes, address electrodes (A electrodes) ar...

Claims

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Application Information

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IPC IPC(8): G09G3/28G09G3/288G09G3/20H01J17/49G09F9/313G09G3/296
Inventor 郑姚生汤勇明
Owner SOUTHEAST UNIV