CN101089933B - Liquid crystal display device and its drive circuit and driving method - Google Patents
Liquid crystal display device and its drive circuit and driving method Download PDFInfo
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- CN101089933B CN101089933B CN200610061125A CN200610061125A CN101089933B CN 101089933 B CN101089933 B CN 101089933B CN 200610061125 A CN200610061125 A CN 200610061125A CN 200610061125 A CN200610061125 A CN 200610061125A CN 101089933 B CN101089933 B CN 101089933B
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Abstract
A driving circuit of liquid crystal display unit is prepared as connecting red-green-blue signal interface to switchover unit, connecting serial signal interface to switchover unit and data conversion unit as well as driving integrated circuit, connecting switchover unit to data conversion unit and diode control unit as well as driving integrated circuit, connecting data conversion unit to diode control unit and driving integrated circuit and enabling to use switchover unit to carry out switchover between normal mode and red-green-blue order mode.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator and driving circuit thereof and driving method.
Background technology
That liquid crystal indicator has is frivolous, power saving, advantage such as radiationless, has been widely used in various information, communication and the consumer products.Along with the expansion of liquid crystal indicator range of application, its requirement that need satisfy also increases, particularly in some particular surroundings, need high brightness during as the open air use, and when watching,, then need high chroma as careful picture or dynamic image to the higher video data of colourity demand.
See also Fig. 1, be a kind of synoptic diagram of prior art liquid crystal indicator.This liquid crystal indicator 1 comprises a liquid crystal panel 13, a plurality of rgb led 15 and one drive circuit 17.This driving circuit 17 comprises that a R-G-B signals connects 171, one serial signal and connects 172, one drive integrated circult 176 and a diode control module 177.
During liquid crystal indicator 1 work, R-G-B signals that external circuit provides and serial signal are sent to drive integrated circult 176 via R-G-B signals interface 171 and serial signal interface 172 respectively, drive liquid crystal panel 13 by this drive integrated circult 176, show to realize picture.Simultaneously, external circuit also provides a backlight control signal to diode control module 177, by a plurality of rgb led 15 of these diode control module 177 controls.These a plurality of rgb led 15 luminous simultaneously and mixed be white light, supply with this liquid crystal panel 13 then.At this moment, this liquid crystal indicator 1 is a general mode, and these a plurality of rgb led 15 are simultaneously luminous continuously, the light source abundance, and then make that the brightness of this liquid crystal indicator 1 is higher, be also referred to as the high brightness pattern.
See also Fig. 2, be the synoptic diagram of another kind of prior art liquid crystal indicator.This liquid crystal indicator 2 comprises a liquid crystal panel 23, a plurality of rgb led 25 and one drive circuit 27.This driving circuit 27 comprises a R-G-B signals interface 271, a serial signaling interface 272, a Date Conversion Unit 275, a drive integrated circult 276 and a diode control module 277.
During liquid crystal indicator 2 work, R-G-B signals that external circuit provides and serial signal are sent to Date Conversion Unit 275 via R-G-B signals interface 271 and serial signal interface 272 respectively, this Date Conversion Unit 275 carries out data-switching, R-G-B signals is converted to RGB order shows signal, promptly at a time only provide a kind of color signal, and the red, green, blue signal is docile and obedient preface and is provided; Be sent to drive integrated circult 276 and diode control module 277 then.Driving these liquid crystal panel 23 RGB pictures by this drive integrated circult 276 shows in proper order.Simultaneously, a plurality of rgb led 25 of these diode control module 277 controls are lighted with the RGB order, to cooperate this liquid crystal panel 23, realize that these liquid crystal indicator 2 orders show.At this moment, this liquid crystal indicator 2 is the RGB ordered mode, and these a plurality of rgb led 25 are that order is luminous, and light source colourity is higher, and then makes that the colourity of this liquid crystal indicator 2 is higher, is also referred to as the high chroma pattern.In addition, the rgb led of this liquid crystal indicator 2 25 is lighted for order, and promptly during a led lighting, two other diode is closed, and makes that luminous total amount reduces in the unit interval, and then makes the brightness of this liquid crystal indicator 2 reduce.
Yet the demand difference of liquid crystal indicator 1,2 under varying environment or situation needs high brightness during as the open air use, to improve picture display effect; And when watching to the higher video data of colourity demand, as careful picture or dynamic image, then need high chroma, to improve the picture display quality. and driving circuit 17,27 functions of above-mentioned liquid crystal indicator 1,2 are more single, only can drive single-mode, make that the function of liquid crystal indicator 1,2 is more single, and then can't satisfy the needs of multiple operating position.
Summary of the invention
In order to solve the more single problem of LCD drive circuits function in the prior art, be necessary to provide a kind of multi-functional liquid crystal indicator driving circuit.
Also be necessary to provide a kind of multi-functional liquid crystal display apparatus driving circuit.
Also be necessary to provide a kind of multi-functional liquid crystal indicator.
A kind of liquid crystal indicator driving circuit, it comprises a R-G-B signals interface, one serial signaling interface, one switches the unit, one Date Conversion Unit, an one diode control module and a drive integrated circult, this R-G-B signals interface is connected to this switch unit, this serial signal interface is connected to this switch unit, Date Conversion Unit and drive integrated circult, this switch unit is connected to this Date Conversion Unit, diode control module and drive integrated circult, this Date Conversion Unit is connected to this diode control module and drive integrated circult, this switch unit can carry out switching between general mode and RGB ordered mode, when this switch unit switches to general mode, then directly R-G-B signals is sent to diode control module and drive integrated circult, rgb pixels on the liquid crystal panel drives simultaneously, rgb led simultaneously luminous and mixed be white light, when this switch unit switches to the RGB ordered mode, then R-G-B signals is carried out data-switching via Date Conversion Unit and be resent to diode control module and drive integrated circult, rgb pixels on this liquid crystal panel shows in proper order, this rgb led is lighted in proper order, and it is luminous to press the RGB order.
A kind of liquid crystal indicator, it comprises a liquid crystal panel, a plurality of rgb led and one drive circuit, this driving circuit comprises: a R-G-B signals interface, one serial signaling interface, one switches the unit, one Date Conversion Unit, an one diode control module and a drive integrated circult, this R-G-B signals interface is connected to this switch unit, this serial signal interface is connected to this switch unit, Date Conversion Unit and drive integrated circult, this switch unit is connected to this Date Conversion Unit, diode control module and drive integrated circult, this Date Conversion Unit is connected to this diode control module and drive integrated circult, this switch unit can carry out switching between general mode and RGB ordered mode, when this switch unit switches to general mode, then directly R-G-B signals is sent to diode control module and drive integrated circult, rgb pixels on this liquid crystal panel drives simultaneously, this rgb led luminous simultaneously and mixed be white light, when this switch unit switches to the RGB ordered mode, then R-G-B signals is carried out data-switching via Date Conversion Unit and be resent to diode control module and drive integrated circult, rgb pixels on this liquid crystal panel shows in proper order, this rgb led is lighted in proper order, and it is luminous to press the RGB order.
Above-mentioned liquid crystal indicator driving circuit is undertaken switching between general mode and RGB ordered mode by switch unit, realizes the selection of high chroma and two kinds of drive patterns of high brightness, therefore can adapt to the needs of high chroma and high brightness situation.
Above-mentioned liquid crystal display apparatus driving circuit switches by carrying out general mode and RGB ordered mode, realizes the selection of high chroma and two kinds of drive patterns of high brightness, therefore can adapt to the needs of high chroma and high brightness situation.
Above-mentioned liquid crystal indicator is undertaken switching between general mode and RGB ordered mode by the switch unit of driving circuit, realizes the selection of high chroma and two kinds of drive patterns of high brightness, therefore can adapt to the needs of high chroma and high brightness situation.
Description of drawings
Fig. 1 is a kind of synoptic diagram of prior art liquid crystal indicator.
Fig. 2 is the synoptic diagram of another kind of prior art liquid crystal indicator.
Fig. 3 is the synoptic diagram of liquid crystal indicator first embodiment of the present invention.
Fig. 4 is the synoptic diagram of liquid crystal indicator second embodiment of the present invention.
Embodiment
See also Fig. 3, be the synoptic diagram of liquid crystal indicator first embodiment of the present invention.This liquid crystal indicator 3 comprises a liquid crystal panel 33, a plurality of rgb led 35 and one drive circuit 37.This driving circuit 37 comprises that a R-G-B signals interface 371, a serial signaling interface 372, switch unit 373, a Date Conversion Unit 375, a drive integrated circult 376 and a diode control module 377.
During these liquid crystal indicator 3 work, R-G-B signals that external circuit provides and serial signal are sent to R-G-B signals interface 371 respectively and serial signal connects 372.This R-G-B signals is sent to switch unit 373 via R-G-B signals interface 371.This serial signal is sent to switch unit 373, Date Conversion Unit 375 and drive integrated circult 376 via serial signal interface 372.This switch unit 373 can carry out general mode or the switching of RGB ordered mode according to serial signal.This diode control module 377 can also drive rgb led according to general mode or RGB ordered mode.
When this switch unit 373 switched to general mode, 373 of this switch units directly were sent to R-G-B signals drive integrated circult 376 and diode control module 377.This drive integrated circult 376 drives liquid crystal panel 33 with general mode, and promptly the RGB picture element drives simultaneously.This diode control module 377 drives rgb led 35 with general mode, promptly rgb led 35 luminous simultaneously and mixed be white light.At this moment, this liquid crystal indicator 3 is a general mode, and these a plurality of 35 whiles of rgb led are luminous continuously, the light source abundance, and then make that the brightness of this liquid crystal indicator 3 is higher, be also referred to as the high brightness pattern.
When this switch unit 373 switches to the RGB ordered mode, 373 of this switch units are sent to Date Conversion Unit 375 with R-G-B signals, and this Date Conversion Unit 375 carries out being sent to drive integrated circult 376 and diode control module 377 after the data-switching.376 of this drive integrated circults drive liquid crystal panel 33 with the RGB ordered mode, to realize that RGB shows in proper order.377 of this diode control modules drive rgb led 35 with the RGB ordered mode, and promptly rgb led 35 orders are luminous, light the red, green, blue light emitting diode in order.At this moment, this liquid crystal indicator 3 is the RGB ordered mode, and these a plurality of rgb led 35 are that order is luminous, and light source colourity is higher, and then makes that the colourity of this liquid crystal indicator 3 is higher, is also referred to as the high chroma pattern.
The user can send different serial signals to serial signal interface 372 by external circuit, control the switch unit 373 of this driving circuit 37, with the display mode of switchable liquid crystal panel 33 and the light-emitting mode of rgb led 35, and then selection liquid crystal indicator 3 is high brightness pattern or high chroma pattern, realize the selection of high chroma and two kinds of drive patterns of high brightness, therefore can adapt to the needs of high chroma and high brightness situation.
For example, when liquid crystal indicator 3 uses in the stronger situation of surround lighting, under outdoor sunlight, then this liquid crystal indicator 3 can be switched to the high brightness pattern, to improve picture display effect; And when watching, as careful picture or dynamic image, then this liquid crystal indicator 3 can be switched to the high chroma pattern, to improve the picture display quality to the higher video data of colourity demand.
See also Fig. 4, be the synoptic diagram of liquid crystal indicator second embodiment of the present invention.This embodiment and the first embodiment difference only are: the switch unit 473 of this liquid crystal indicator 4 comprises that further one switches switch 474, and this change-over switch 474 can be integrated on this switch unit 473, also can be resolution element.This change-over switch 474 can be controlled this switch unit 474, and with the display mode of switchable liquid crystal panel 43 and the light-emitting mode of rgb led 45, and then selection liquid crystal indicator 4 is high brightness pattern or high chroma pattern.
Claims (7)
1. liquid crystal indicator driving circuit, it comprises a R-G-B signals interface, one serial signaling interface, one Date Conversion Unit, an one diode control module and a drive integrated circult, it is characterized in that: comprise that further one switches the unit, this R-G-B signals interface is connected to this switch unit, this serial signal interface is connected to this switch unit, Date Conversion Unit and drive integrated circult, this switch unit is connected to this Date Conversion Unit, diode control module and drive integrated circult, this Date Conversion Unit is connected to this diode control module and drive integrated circult, this switch unit can carry out switching between general mode and RGB ordered mode, when this switch unit switches to general mode, then directly R-G-B signals is sent to diode control module and drive integrated circult, rgb pixels on the liquid crystal panel drives simultaneously, rgb led simultaneously luminous and mixed be white light, when this switch unit switches to the RGB ordered mode, then R-G-B signals is carried out data-switching via Date Conversion Unit and be resent to diode control module and drive integrated circult, rgb pixels on this liquid crystal panel shows in proper order, this rgb led is lighted in proper order, and it is luminous to press the RGB order.
2. liquid crystal indicator driving circuit as claimed in claim 1 is characterized in that: this switch unit carries out mode switch according to the signal of serial signal interface.
3. liquid crystal indicator driving circuit as claimed in claim 1 is characterized in that: this switch unit comprises that one switches switch, and this change-over switch can be controlled the mode switch of this switch unit.
4. liquid crystal indicator driving circuit as claimed in claim 3 is characterized in that: this change-over switch is integrated on this switch unit.
5. liquid crystal indicator, it comprises a liquid crystal panel, a plurality of rgb led and driving circuit, this driving circuit comprises a R-G-B signals interface, one serial signaling interface, one Date Conversion Unit, an one diode control module and a drive integrated circult, it is characterized in that: this driving circuit comprises that further one switches the unit, this R-G-B signals interface is connected to this switch unit, this serial signal interface is connected to this switch unit, Date Conversion Unit and drive integrated circult, this switch unit is connected to this Date Conversion Unit, diode control module and drive integrated circult, this Date Conversion Unit is connected to this diode control module and drive integrated circult, this switch unit can carry out switching between general mode and RGB ordered mode, when this switch unit switches to general mode, then directly R-G-B signals is sent to diode control module and drive integrated circult, rgb pixels on this liquid crystal panel drives simultaneously, this rgb led luminous simultaneously and mixed be white light, when this switch unit switches to the RGB ordered mode, then R-G-B signals is carried out data-switching via Date Conversion Unit and be resent to diode control module and drive integrated circult, rgb pixels on this liquid crystal panel shows in proper order, this rgb led is lighted in proper order, and it is luminous to press the RGB order.
6. liquid crystal indicator as claimed in claim 5 is characterized in that: this switch unit carries out mode switch according to the signal of serial signal interface.
7. liquid crystal indicator as claimed in claim 5 is characterized in that: this switch unit comprises that one switches switch, and this change-over switch can be controlled the mode switch of this switch unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610061125A CN101089933B (en) | 2006-06-14 | 2006-06-14 | Liquid crystal display device and its drive circuit and driving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610061125A CN101089933B (en) | 2006-06-14 | 2006-06-14 | Liquid crystal display device and its drive circuit and driving method |
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| Publication Number | Publication Date |
|---|---|
| CN101089933A CN101089933A (en) | 2007-12-19 |
| CN101089933B true CN101089933B (en) | 2010-05-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200610061125A Expired - Fee Related CN101089933B (en) | 2006-06-14 | 2006-06-14 | Liquid crystal display device and its drive circuit and driving method |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111381010A (en) * | 2018-12-29 | 2020-07-07 | 深圳市广和通无线股份有限公司 | Monitoring system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384484A (en) * | 2001-04-27 | 2002-12-11 | 本田技研工业株式会社 | Vehicle LCD |
| CN1474220A (en) * | 2002-07-25 | 2004-02-11 | �ձ�������ʽ���� | Field sequence driving liquid crystal display device capable of increasing bright and suppressing non-eveness and its driving method |
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2006
- 2006-06-14 CN CN200610061125A patent/CN101089933B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384484A (en) * | 2001-04-27 | 2002-12-11 | 本田技研工业株式会社 | Vehicle LCD |
| CN1474220A (en) * | 2002-07-25 | 2004-02-11 | �ձ�������ʽ���� | Field sequence driving liquid crystal display device capable of increasing bright and suppressing non-eveness and its driving method |
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| Publication number | Publication date |
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| CN101089933A (en) | 2007-12-19 |
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