CN102208162B - Picture quality regulating device of plasma displayer and plasma television - Google Patents
Picture quality regulating device of plasma displayer and plasma television Download PDFInfo
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- CN102208162B CN102208162B CN 201110129391 CN201110129391A CN102208162B CN 102208162 B CN102208162 B CN 102208162B CN 201110129391 CN201110129391 CN 201110129391 CN 201110129391 A CN201110129391 A CN 201110129391A CN 102208162 B CN102208162 B CN 102208162B
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Abstract
The invention discloses a picture quality regulating device of a plasma displayer and a plasma television. The picture quality regulating device is used for regulating the output voltage of a special switch power supply of the plasma displayer. The regulating device comprises an emitting circuit, a receiving circuit and a digital potentiometer, wherein the emitting circuit is used for emitting infrared remote signals; the receiving circuit is used for receiving and decoding the infrared remote signals so as to obtain control potential signals; and the digital potentiometer is connected to the receiving circuit and is used for regulating the output voltage of the plasma displayer according to the control potential signals. Compared with the prior art, the picture quality regulating device has the beneficial effects that the output voltage of the special switch power supply of the plasma displayer is remotely regulated so that regulation complexity is greatly reduced, thereby the picture quality regulation process of the plasma displayer is facilitated.
Description
Technical field
The invention belongs to the plasm TV field, relate to a kind of plasma display picture quality regulating device and plasma TV.
Background technology
Colour plasma display (PDP, Plasma Display Panel) is a kind of display device that developed rapidly in recent years.Colour plasma display becomes the first-selection of large screen display device with superior performance, the large-sized solor plasma display device has begun to come into the market at present, especially AC type AC-PDP has the advantages such as type of drive is simple and obtains to study widely and use, and can progressively be popularized in recent years.
In the plasma display course of work, each pixel cell is by X electrode, Y electrode and A electrode co-controlling.Make each pixel cell normal operation, just need X electrode, Y electrode and A electrode according to certain correct high drive waveform of sequential output, the work of working in coordination.This just needs the plasma display power source special to provide display driver needed multiple voltage, mainly contains logic voltage, keeps voltage, A addressing voltage and Y addressing voltage etc.Due to inevitable difference on the plasma panel manufacturing process, the value of keeping voltage, A addressing voltage and Y addressing voltage when making each piece display screen reach optimal display result is not identical, and this just needs every display screen various voltages to be carried out fine setting on certain limit when the assembling and setting.the adjusting of power circuit output voltage is to be undertaken by the voltage sample value on the divider resistance that changes output voltage, usually the mode that adopts is to regulate the single-turn or multi-turn potentiometer that is in series with fixed resistance, more and have a high pressure due to the voltage kind of the required adjusting of plasma panel power supply, complete machine structure is more complicated, when regulating image quality, the people can't directly see the result of demonstration at the opposing face regulator potentiometer of screen, usually the solution that adopts is be placed on the positive of screen or have in addition the people to watch the demonstration result in the front of screen with mirror, make the process of debugging relatively loaded down with trivial details.
And in prior art, regulate loaded down with trivial details problem for the plasma display output voltage, effective solution is not yet proposed at present.
Summary of the invention
The present invention proposes a kind of plasma display picture quality regulating device and plasma TV, be used for solving prior art ionic medium display output voltage and regulate loaded down with trivial details problem.
For achieving the above object, according to an aspect of the present invention, provide a kind of plasma display picture quality regulating device, and by the following technical solutions:
A kind of plasma display picture quality regulating device comprises: radiating circuit is used for the emission infrared remote-controlled signal; Receiving circuit is used for receiving and decoding infrared remote control signals controlled electric potential signal; And digital regulation resistance, be connected in receiving circuit, be used for according to controlling electric potential signal, the output voltage of plasma display is regulated.
Further, radiating circuit comprises: the integrated circuit coding chip, and for generation of the remote signal of different coding, the integrated circuit coding chip comprises: output voltage increases pin, for generation of the remote signal of controlling the electric power output voltage increase; Output voltage reduces pin, for generation of the remote signal of controlling electric power output voltage and reducing; The signal output pin is used for the output remote signal; The first switch, first end are connected in output voltage and reduce pin; Second switch, first end are connected in output voltage and increase pin; Infraluminescence pipe, anodic bonding integrated circuit coding chip, the anode of infraluminescence pipe also are used for connecting power supply, the second end of the first switch and the second end of second switch; The first resistance, first end connects the signal output pin; Triode, the B utmost point are connected in the second end of the first resistance, and the C utmost point connects the negative electrode of infraluminescence pipe, E utmost point ground connection.
Further, radiating circuit also comprises: the second resistance, and first end connects the integrated circuit coding chip; Light emitting diode, the second end of anodic bonding the second resistance, plus earth is used to indicate the duty of radiating circuit.
Further, radiating circuit also comprises: crystal oscillator, and in parallel with the integrated circuit coding chip by first end and the second end, for the transmission frequency of stablizing radiating circuit; The first electric capacity, first end connects the first end of crystal oscillator, the second end ground connection; And second electric capacity, first end connects the second end of crystal oscillator, the second end ground connection.
Further, the plasma display picture quality regulating device also comprises: the 3rd resistance, and first end is connected in output voltage, and the control resistance that the second end connects digital regulation resistance increases end; And the 4th resistance, the control resistance that first end is connected in digital regulation resistance reduces end, the second end ground connection.
Further, digital regulation resistance adopts the X9511 digital regulation resistance.
Further, receiving circuit comprises: the infrared receiver module is used for receiving remote signal; And the decoding infrared ray chip, be connected with the infrared receiver module, be used for that remote signal is done decoding and process, controlled electric potential signal also will be controlled electric potential signal output.
Further, receiving circuit also comprises: the 3rd electric capacity, and first end connects the decoding infrared ray chip; The 4th electric capacity, first end connects the decoding infrared ray chip; And two bidirectional analog switch chips, connect respectively the second end of the 3rd electric capacity, with the second end of the 4th electric capacity.
Further, the decoding infrared ray chip adopts LV9309 decoding infrared ray chip.
According to another aspect of the present invention, provide a kind of plasma TV, and realize by following scheme:
A kind of plasma TV comprises above-mentioned plasma display picture quality regulating device.
Compared with prior art, the invention has the beneficial effects as follows: the output voltage of remote adjustment plasma display switch power special, greatly reduce the loaded down with trivial details property of adjusting, thus the process that has facilitated the plasma display image quality to regulate.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the primary structure schematic diagram of embodiment of the present invention ionic medium display picture quality regulating device;
Fig. 2 is the concrete structure schematic diagram of radiating circuit in the embodiment of the present invention;
Fig. 3 is the concrete structure schematic diagram of receiving circuit in the embodiment of the present invention; And
Fig. 4 is the concrete structure schematic diagram of digital regulation resistance in the embodiment of the present invention.
Embodiment
Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the present invention in detail.
Fig. 1 is the primary structure schematic diagram of embodiment of the present invention ionic medium display picture quality regulating device.
Shown in Figure 1, the plasma display picture quality regulating device comprises: radiating circuit is used for the emission infrared remote-controlled signal; Receiving circuit is used for receiving and decoding infrared remote control signals controlled electric potential signal; And digital regulation resistance, be connected in receiving circuit, be used for according to controlling electric potential signal, the output voltage of plasma display is regulated.
Fig. 2 is the concrete structure schematic diagram of radiating circuit in the embodiment of the present invention.
Preferably, radiating circuit comprises: LC9301 integrated circuit coding chip, and for generation of the remote signal of different coding, LC9301 integrated circuit coding chip comprises: the 12nd pin, for generation of the remote signal of controlling the electric power output voltage increase; The 13rd pin is for generation of the remote signal of controlling electric power output voltage and reducing; The 1st pin is used for the output remote signal; The first switch S 1, first end is connected in the 13rd pin; Second switch S2, first end are connected in the 12nd pin; Infraluminescence pipe, the 14th pin of anodic bonding LC9301 integrated circuit coding chip, the 14th pin also are used for connecting power supply and the second end that is connected the first switch; The first resistance, first end connects the 1st pin; Triode, the B utmost point are connected in the second end of the first resistance, and the C utmost point connects the negative electrode of infraluminescence pipe, E utmost point ground connection.This integrated circuit coding chip LC9301 has 6 button control input ends, has actually only used wherein 2 (12,13 pin), corresponds to respectively that electric power output voltage increases and the operation that reduces is controlled.When the S1 in circuit or S2 pressed, LC9301 just can produce through the different coding pulse signal of 40kHz modulation and from signal output pin (1 pin) output, amplified rear drive infraluminescence pipe D3 through Q1 and launched infrared remote-controlled signal.
Preferably, radiating circuit also comprises: the second resistance, and first end connects the 6th pin of LC9301 integrated circuit coding chip; Light emitting diode D4, the second end of D4 anodic bonding the second resistance, the D4 plus earth is used to indicate the duty of radiating circuit.During this circuit normal operation, the chip drives lumination of light emitting diode has determined that chip operation is normal.
Preferably, radiating circuit also comprises: crystal oscillator, and first end connects the 2nd pin of LC9301 integrated circuit coding chip, and the second end connects the 3rd pin of LC9301 integrated circuit coding chip, is used for stablizing the transmission frequency of radiating circuit; The first electric capacity, first end connects the first end of crystal oscillator, the second end ground connection; The second electric capacity, first end connects the second end of crystal oscillator, first end ground connection.Crystal oscillator has adopted the crystal oscillator frequency stabilization of 455kHz, thereby guarantees that radiating circuit has stable transmission frequency.Only for microampere order, the same with general Infrared remote controller because of the quiescent current of this circuit when not pressing button, do not establish power source special, power pack can adopt the two common batteries of joint, has so not only saved circuit cost but also has reduced circuit shared space.
Preferably, receiving circuit comprises: the infrared receiver module is used for receiving remote signal; And the decoding infrared ray chip, be connected with the infrared receiver module, be used for that remote signal is done decoding and process, controlled electric potential signal also will be controlled electric potential signal output.
Preferably, the decoding infrared ray chip adopts LV9309 decoding infrared ray chip.
Preferably, receiving circuit also comprises: the 3rd electric capacity, and first end connects the 4th pin of LV9309 decoding infrared ray chip; The 4th electric capacity, first end connects the 6th pin of LV9309 decoding infrared ray chip; And 74L,VC2,G66 two bidirectional analog switch chips, the 7th pin of 74L,VC2,G66 two bidirectional analog switch chips connects the second end of the 3rd electric capacity, and the 3rd pin of 74L,VC2,G66 two bidirectional analog switch chips connects the second end of the 4th electric capacity.
Fig. 3 is the concrete structure schematic diagram of receiving circuit in the embodiment of the present invention.
Specifically shown in Figure 3, receiving circuit has used 3 integrated circuit (IC) chip (IC2～IC4) He one infrared receiving module altogether, the universal circuit that includes the infrared sensors such as infrared electro conversion, amplification, frequency-selecting, shaping in infrared receiving module inside has also that daylight filters and the function such as electromagnetic screen.This module adopts epoxy encapsulation, and volume is small and exquisite, and three terminals are only arranged, and need not external other discrete component be the infrared sensor that constructibility can be complete.One pin is signal output part, and two pin are earth terminal, and tripod connects the working power anode.The major parameter of this module is: operating voltage Vcc is 4.5～5.5V; Unglazed photograph and the quiescent current Icc (max) during without input signal are 3mA; Peak wavelength is 0.94 μ m; Receiving range L is 8～15m; Receiving angle Δ θ is 33 ° in the horizontal direction, is 14 ° in the vertical direction; Frequency of operation f=38kHz; Operating temperature range is-2.5～+ 75 ℃.IC2 adopts the LC9309 that uses with the chip used LC9301 pairing of radiating circuit, and LC9309 is a kind of infrared special-purpose decoding chip.The coded pulse signal that radiating circuit sends is received by infrared sensor, by the LC9309 processing of decoding, and from its output terminal output control electric potential signal corresponding with the radiating circuit button.IC3 adopts " two bidirectional analog switches " chip 74LVC2G66.The control end of two switches is connected on the output terminal (4,6 pin) of IC2 through C2 and C8 respectively.To wherein by lead-in wire again that the two control resistances that terminate at IC4 of a way switch increase between end (1 pin) and ground, the control resistance that another way switch two is terminated at IC4 reduces between end (2 pin) and ground.IC4 is a kind of button digital regulation resistance, and it includes 31 resistance in series arrays, 32 taps.Tap position, and can be stored in a nonvolatile memory by key control by two, re invocation when next time switching on.X9511 inside is by the electric circuit constitutes such as counter, storer, code translator, analog switch and electric resistance arrays.
Fig. 4 is the concrete structure schematic diagram of digital regulation resistance in the embodiment of the present invention.
Shown in Figure 4, counter is 5 up-down counters, is used for control signal PU (or PD) is added (or subtracting) counting, the count value of counter can be stored in nonvolatile memory under the control of ASE in.The numerical value of counter selects control simulation switch after 1 decoder for decoding through 32.32 analog switches are equivalent to 32 taps of potentiometer.Electric resistance array is made of 31 resistance that are cascaded that adopt integrated circuit technology to make.The resistance two ends are an end of connecting analog switch respectively, and the other end of analog switch links together and consists of the sliding end (5 pin) of digital regulation resistance, by the break-make of the output terminal control simulation switch of code translator, to realize the variation of sliding tap position.Suppose that the voltage range that needs to regulate is 160V-200V.The digital regulation resistance model is X9511z, and resistance is 1K, and the maximum withstand voltage of two ends is 5V.According to these calculation of parameter obtain potentiometer over the ground institute's connecting resistance be 4K, be 320K to output voltage (160V-200V) end institute connecting resistance.The adjustable extent of actual output voltage is 162.5V-202.5V.
Integrated circuit is work like this, when the S1 button of pressing radiating circuit makes the 4 pin output terminals of receiving circuit IC2 be noble potential, charging effect due to C2, make noble potential of control end moment appearance of switch 1, switch 1 will conducting once, be equivalent to 1 pin of IC4 is produced a negative pulse, the tap position of chip internal potentiometer changes the resistance of place in circuit to high-end movement; In like manner, when the S2 button of pressing radiating circuit makes 6 pin of receiving circuit IC2 be noble potential, charging effect due to C8, also can make noble potential of control end moment appearance of switch 2, switch 2 also can conducting once, be equivalent to the tap position that 2 pin to IC4 produce a negative pulse chip internal potentiometer and move to low side, make the resistance of place in circuit that opposite variation occur, thereby complete the function of change in resistance.In Fig. 3, C1, R6 form the automatic power-on reset circuit of IC2.D5, VD6 are respectively C2, C8 provides discharge path.The working power of receiving circuit is directly taken from the logic output voltage+5V of plasma display power supply.
A kind of plasma TV comprises: above-mentioned plasma display picture quality regulating device.
Can find out by embodiments of the invention, the output voltage of remote adjustment plasma display switch power special greatly reduces the loaded down with trivial details property of adjusting, thus the process that has facilitated the plasma display image quality to regulate.
The above is only the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a plasma display picture quality regulating device, is characterized in that, the pixel cell of described plasma display is by X electrode, Y electrode and A electrode co-controlling, and described plasma display picture quality regulating device comprises:
Radiating circuit is used for the emission infrared remote-controlled signal;
Receiving circuit is used for receiving and decoding described infrared remote-controlled signal, controlled electric potential signal; And
Digital regulation resistance is connected in described receiving circuit, is used for according to described control electric potential signal, and the output voltage of described plasma display is regulated, and the output voltage of described plasma display comprises keeps voltage, A addressing voltage and Y addressing voltage,
Wherein, described receiving circuit comprises:
The infrared receiver module is used for receiving described remote signal, and wherein, described infrared receiver inside modules includes the circuit of the infrared sensor of infrared electro conversion, amplification, frequency-selecting, shaping, also has the function of daylight filtration and electromagnetic screen;
The decoding infrared ray chip is connected with described infrared receiver module, is used for that described remote signal is done decoding and processes, and controlled electric potential signal is also exported described control electric potential signal;
The 3rd electric capacity, first end connects described decoding infrared ray chip;
The 4th electric capacity, first end connects described decoding infrared ray chip; And
Two bidirectional analog switch chips connect respectively the second end of described the 3rd electric capacity, with the second end of described the 4th electric capacity.
2. plasma display picture quality regulating device according to claim 1, is characterized in that, described radiating circuit comprises:
The integrated circuit coding chip, for generation of the remote signal of different coding, described integrated circuit coding chip comprises:
Output voltage increases pin, for generation of the remote signal of controlling the electric power output voltage increase;
Output voltage reduces pin, for generation of the remote signal of controlling electric power output voltage and reducing;
The signal output pin is used for exporting described remote signal;
The first switch, first end are connected in described output voltage and reduce pin;
Second switch, first end are connected in described output voltage and increase pin;
Infraluminescence pipe, the described integrated circuit coding chip of anodic bonding, the anode of described infraluminescence pipe also are used for connecting power supply, the second end of described the first switch and the second end of described second switch;
The first resistance, first end connects described signal output pin;
Triode, the B utmost point are connected in the second end of described the first resistance, and the C utmost point connects the negative electrode of described infraluminescence pipe, E utmost point ground connection.
3. plasma display picture quality regulating device according to claim 2, is characterized in that, described radiating circuit also comprises:
The second resistance, first end connects described integrated circuit coding chip;
Light emitting diode, the second end of described the second resistance of anodic bonding, plus earth is used to indicate the duty of described radiating circuit.
4. plasma display picture quality regulating device according to claim 2, is characterized in that, described radiating circuit also comprises:
Crystal oscillator, in parallel with described integrated circuit coding chip by first end and the second end, for the transmission frequency of stablizing described radiating circuit;
The first electric capacity, first end connects the first end of described crystal oscillator, the second end ground connection; And
The second electric capacity, first end connects the second end of described crystal oscillator, the second end ground connection.
5. plasma display picture quality regulating device according to claim 4, is characterized in that, also comprises:
The 3rd resistance, first end are connected in described output voltage, and the control resistance that the second end connects described digital regulation resistance increases end; And
The control resistance that the 4th resistance, first end are connected in described digital regulation resistance reduces end, the second end ground connection.
6. plasma display picture quality regulating device according to claim 5, is characterized in that, described digital regulation resistance adopts the X9511 digital regulation resistance.
7. plasma display picture quality regulating device according to claim 1, is characterized in that, described decoding infrared ray chip adopts LV9309 decoding infrared ray chip.
8. a plasma TV, is characterized in that, comprising: the described plasma display picture quality regulating device of claim 1-7 any one.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110129391 CN102208162B (en) | 2010-09-30 | 2011-05-18 | Picture quality regulating device of plasma displayer and plasma television |
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| CN201010507908.3 | 2010-09-30 | ||
| CN201010507908 | 2010-09-30 | ||
| CN 201110129391 CN102208162B (en) | 2010-09-30 | 2011-05-18 | Picture quality regulating device of plasma displayer and plasma television |
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| CN102208162A CN102208162A (en) | 2011-10-05 |
| CN102208162B true CN102208162B (en) | 2013-11-06 |
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| CN 201110129391 Expired - Fee Related CN102208162B (en) | 2010-09-30 | 2011-05-18 | Picture quality regulating device of plasma displayer and plasma television |
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| CN108565944A (en) * | 2017-12-15 | 2018-09-21 | 中建材浚鑫科技有限公司 | Solar street light charge-discharge control system |
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| CN2726042Y (en) * | 2004-07-05 | 2005-09-14 | 郝全文 | Wireless and infrared remote-controlled stepless light modulating switch |
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| JPH0324572A (en) * | 1989-06-22 | 1991-02-01 | Canon Inc | Developer container and its manufacture |
| JP2000324572A (en) * | 1999-05-14 | 2000-11-24 | Matsushita Electric Ind Co Ltd | Remote control system |
| KR100760680B1 (en) * | 2005-12-30 | 2007-09-20 | 엘지전자 주식회사 | Apparatus and method for removing image sticking, and plasma display panel having function of removing image sticking |
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| CN2627612Y (en) * | 2003-05-20 | 2004-07-21 | 深圳市珊星电脑有限公司 | Equipment for regulating LCD contrast |
| CN2726042Y (en) * | 2004-07-05 | 2005-09-14 | 郝全文 | Wireless and infrared remote-controlled stepless light modulating switch |
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| 朱建坤.五通道遥控/手控编译码集成电路LC9301/LC9309及其应用.《制作天地》.1996,(第1期),第20页. |
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