Energy-saving plasma display panel driving method and its apparatus

A technology of plasma and driving method, which is applied in the direction of identification devices, static indicators, instruments, etc., can solve the problems of large electromagnetic interference, large reactive power, and low energy recovery efficiency, and achieve reduction of reactive power and electromagnetic interference, The effect of eliminating parasitic effects and improving energy saving efficiency

Inactive Publication Date: 2006-07-19
NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, the reactive power of this fixed-parameter energy recovery drive circuit is relatively large (the energy recovery efficiency is relatively low), the change of the drive waveform has a greater impact on the display effect, and the electromagnetic interference (EMI) generated by the change of the drive waveform is relatively low. Big

Method used

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  • Energy-saving plasma display panel driving method and its apparatus
  • Energy-saving plasma display panel driving method and its apparatus
  • Energy-saving plasma display panel driving method and its apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Such as Figure 6 , 7 , 10, and 11.

[0055] Figure 6 It is an energy-saving driving device according to Embodiment 1 of the present invention. Including the basic first energy-saving driving circuit and the second energy-saving driving circuit, the light-emitting unit quantity measuring device ( Figure 10 ) controls the timing generator ( Figure 11 ).

[0056] Measuring device for the number of light emitting units ( Figure 10 ) statistics the image data to be displayed in each subfield, and its circuit can be realized by a logic circuit (FPGA can be used to add a logic program), and a specific program is as follows:

[0057] process(dotclk, Vsync, DisplayEN, RGB) begin if Vsync='0'then cntcntcntcntcnt

[0058] The count value of the above program directly reflects the load status of the plasma display panel and its parasitic capacitance value, and the result is sent to the control timing generator, which adjusts S11, S12, S13, S14, S21, S22 according to t...

Embodiment 2

[0062] Such as Figure 8 , 9 , 10, and 11.

[0063] Figure 8 It is the energy-saving driving device of the second embodiment of the present invention. It includes a first energy-saving driving circuit and a second energy-saving driving circuit, an image load counting device and a control timing generator. Both the first energy-saving driving circuit and the second energy-saving driving circuit include a basic energy-saving unit composed of n-routing switching elements and a resonant inductor. Here, only the first energy-saving driving circuit is taken as an example for illustration.

[0064] The first energy-saving driving circuit includes n groups of basic energy-saving units. In actual implementation, n can take an appropriate value according to the actual situation. Taking into account cost and performance factors, the value of n is between 2 and 10. The values ​​of inductances L1, L2,...Ln are in multiples, that is, Ln:Ln-1:...L2:L1=2n:2(n-1):... : 2: 1, of course, t...

Embodiment 3

[0067] This implementation example combines the implementation example 1 and the implementation example 2 to realize together. The specific form of the device is the same as that of the second embodiment, and the control sequence combines the characteristics of the first embodiment.

[0068] Specifically, as Figure 8 As shown, the image load counting device counts the image data to be displayed, and sends the result to the control timing generator, which adjusts S11-1 and S12 according to the load status of the plasma display panel and the parasitic capacitance corresponding to the count value -1, S11-2, S12-2, ... S11-n, S12-n and other control signals enable the corresponding energy-saving units to be turned on and off according to the displayed load conditions, that is, the basic energy-saving units participating in the resonance With the change of the equivalent capacitance of the PDP display screen, it participates in energy saving work. At the same time, the relative ...

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Abstract

The invention discloses an energy-saving driving method of a plasma display plate and its two types of energy-saving driver. It adjusts the number of the working energy-saving circuit or the corresponding parameter of the same energy-saving circuit so as to make the acoustic resonance on best condition by computing the equivalent condensing value of the light-emitting unit number; it stores the energy of the PDP display plate shunt capacitance in the energy storing capacitance by controlling the time sequence. The energy storing capacitance uses the acoustic resonance to charge the PDP in charging mode.

Description

technical field [0001] The invention relates to a plasma display panel, in particular to an energy-saving method and device for a plasma display panel, in particular to an energy-saving drive method and device for a plasma display panel. Background technique [0002] At present, the plasma display panel has excellent display performance due to its self-illumination, and has the advantages of thin thickness, wide viewing angle, high contrast, and rapid response. Therefore, its development is very rapid, and it has established a leading position in the field of large-screen flat display. It is recognized as a display that can replace the traditional cathode ray tube (Cathode Ray Tube, CRT) on a large display larger than 40 inches. [0003] PDP is a flat-panel display device that uses gas discharge to display text or images. The number of PDP pixels generally ranges from hundreds of thousands to more than one million, and is arranged in a matrix (or similar form) and can be sel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/288G09G3/28G09G3/20H01J17/49G09F9/313
Inventor 曹允王绪丰樊卫华宋德宇朱莉权蕾
Owner NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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