CN201655262U - Liquid crystal display device and drive circuit thereof - Google Patents
Liquid crystal display device and drive circuit thereof Download PDFInfo
- Publication number
- CN201655262U CN201655262U CN2009203051781U CN200920305178U CN201655262U CN 201655262 U CN201655262 U CN 201655262U CN 2009203051781 U CN2009203051781 U CN 2009203051781U CN 200920305178 U CN200920305178 U CN 200920305178U CN 201655262 U CN201655262 U CN 201655262U
- Authority
- CN
- China
- Prior art keywords
- liquid crystal
- crystal display
- micro
- control unit
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a liquid crystal display device comprising a micro-control unit, a power circuit, a drive circuit and a liquid crystal display unit, wherein the micro-control unit is used for receiving and processing display signals; the power circuit is used for providing driving voltage for the drive circuit; the drive circuit is used for receiving the display signals from the micro-control unit and driving the liquid crystal display unit to achieve the corresponding image display; the micro-control unit is electrically connected with the liquid crystal display unit; and the micro-control unit is capable of controlling the display resolution of the liquid crystal display unit. The utility model further provides a drive circuit for the liquid crystal display device.
Description
Technical field
The utility model relates to a kind of display device and driving circuit thereof, especially a kind of bistable state liquid crystal display apparatus and driving circuit thereof.
Background technology
Along with the development of display technique, liquid crystal indicator becomes the development trend of display technique gradually owing to have the advantage of frivolous, power saving.Lcd technology comprises monostable lcd technology and bistable liquid crystal display technique.
The monostable liquid crystal indicator is a kind of such display device: when electric field did not exist, only there was a kind of structure in the liquid crystal in the liquid crystal indicator.After applying an effect of electric field, liquid crystal structure changes continuously, and its optical characteristics changes with the variation that applies voltage; After electric field was cancelled, liquid crystal turned back to single monostable configuration once more.
Bistable state liquid crystal display apparatus is a kind of such display device: when electric field does not exist, have two kinds of independent structures in the liquid crystal indicator, this moment, liquid crystal was in stable state or metastable state.After applying a suitable electric field, liquid crystal is transformed between two states mutually.Because this characteristic of bistable state liquid crystal display apparatus, in case after image write, under the situation of no electric field, this image can be stored, and does not need keeping of electric field.This specific character of bi-stable display device makes it only just need electric field driven under needs change the situation of image, thereby power and energy saving more more is applicable to portable display device.
Yet current bistable state liquid crystal display apparatus needs independent design driven circuit for different display resolutions or different bistable liquid crystal display panels.When changing the bistable liquid crystal display panel, also to change and debug new driving circuit.So cause the complicacy of driving circuit to improve and the versatility reduction, also cause the cost of bistable state liquid crystal display apparatus too high.
The utility model content
For solving prior art bistable state liquid crystal display apparatus driving circuit complexity, the low high problem of cost that reaches of versatility, be necessary to provide the liquid crystal indicator that a kind of circuit is simple and versatility is high, Costco Wholesale is low.
A kind of liquid crystal indicator, it comprises a micro-control unit, a power circuit, a display driver circuit and a liquid crystal display.This micro-control unit is used for receiving and the processes and displays signal.This power circuit provides driving voltage for this display driver circuit.This display driver circuit receives the shows signal of this micro-control unit, and drives this liquid crystal display and realize that corresponding image shows.This micro-control unit and this liquid crystal display electrically connect, and this micro-control unit is according to the display resolution of this liquid crystal display of the corresponding control of difference of shows signal.This micro-control unit is adjusted it and is shown that lattice parameter is to adjust the display resolution of this liquid crystal display.This micro-control unit and this power circuit electrically connect, and this micro-control unit is adjusted the output voltage of this power circuit to adjust the driving voltage of this driving circuit.
As the further improvement of above-mentioned liquid crystal indicator, this driving voltage comprises gray scale voltage and/or GAMA voltage.
As the further improvement of above-mentioned liquid crystal indicator, this display driver circuit comprises a horizontal drive circuit and a column drive circuit.
As the further improvement of above-mentioned liquid crystal indicator, this liquid crystal display is a bistable state liquid crystal display.
As the further improvement of above-mentioned liquid crystal indicator, this power circuit is one direct current/DC power supply circuit.
This bistable state liquid crystal display apparatus is under the situation of resolution changing, and the demonstration lattice parameter that only need adjust this micro-control unit can realize the demonstration of corresponding resolution, and its driving circuit is simple, has high generality.Simultaneously, even under the situation of changing this bistable liquid crystal display unit, do not need the driving circuit that more renews yet, and only need adjust the demonstration lattice parameter of this micro-control unit and the output voltage of this DC-DC power circuit, just can adjust parameters such as gray scale voltage and/or GAMA voltage, realize normally showing.This bistable state liquid crystal display apparatus can be realized the demonstration of multiple resolution, and has simple, general driving circuit, fully satisfies the demand of client to the bistable state liquid crystal display apparatus versatility, reduces cost greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model bistable state liquid crystal display apparatus.
Embodiment
See also Fig. 1, Fig. 1 is the high-level schematic functional block diagram of the utility model bistable state liquid crystal display apparatus.This bistable state liquid crystal display apparatus 1 comprises a micro-control unit 11, one direct current/DC power supply circuit 12, a bistable state liquid crystal display 15 and a display driver circuit (not indicating).This display driver circuit comprises a line driver 13 and a row driver 14.
This micro-control unit 11 is used for receiving and storage bistable liquid crystal shows signal, as low-voltage differential signal (Low VoltageDifferent Singal, LVDS), user's operation signal and power control signal etc.This DC-DC power circuit 12 be used for one fixedly DC voltage be converted to the specific DC voltage that this line driver 13 and this row driver 14 can use, as 12 volts, 9 volts etc.This DC-DC power circuit 12 is subjected to this micro-control unit 11 controls simultaneously, makes its unlatching or disconnection disconnected, that is whether, controlling it provides driving voltage to this line driver 13 and this row driver 14.This display driver circuit is used to receive bistable liquid crystal shows signal and the user's operation signal that this micro-control unit 11 sends, this line driver 13 and this row driver 14 are under the driving of the DC voltage that this DC-DC power circuit 12 provides, bistable liquid crystal shows signal and control signal are converted to shows signal and the control signal that this bistable liquid crystal display unit 15 can be discerned, and this shows signal is delivered to this bistable liquid crystal display unit 15.This bistable liquid crystal display unit 15 is showing corresponding image information according to shows signal.
The special feature of this micro-control unit 11 is: it has a control function in addition except that having the function of handling the required shows signal of this bistable liquid crystal display unit 15.The user can import a control signal as required and give micro-control unit 11, makes the duty of these micro-control unit 11 these DC-DC power circuits 12 of control.When displaying contents need refresh, these DC-DC power circuit 12 operate as normal; When displaying contents was fixed and do not needed to refresh, this DC-DC power circuit 12 quit work, thereby can reach less electricity consumption.
This micro-control unit 11 can be adjusted the resolution of bistable liquid crystal display unit 15 under user's control simultaneously.When being default resolution as display resolution, the user does not need to control, and this bistable liquid crystal display unit 15 can directly show the associated picture content; When display resolution changes, as when changing WGA into, the user operates this micro-control unit 11, as import a control signal A, then thereby this micro-control unit 11 is adjusted lattice parameter according to signal A and is adjusted display resolution, and wherein lattice parameter comprises capable resolution parameter and column split rate parameter and line frequency and row frequency.Then this moment, this line driver 13 and this row driver 14 can be changed the display resolution and the refresh rate of this bistable liquid crystal display unit 15 according to the lattice parameter of this micro-control unit 11.
General, for same bistable liquid crystal display unit 15, under the situation that resolution is adjusted, its drive signal parameters comprises that gray scale voltage, GAMA voltage etc. do not need to adjust.Yet its drive signal parameters needs in time to adjust, can correctly show information to be displayed under specific circumstances or change under the situation of this bistable liquid crystal display unit 15.1 output voltage that needs to adjust this DC-DC power circuit 12 of the utility model bistable state liquid crystal display apparatus, can adjust the driving voltage of this line driver 13 and this row driver 14, thereby can adjust to optimal driving voltage, so that this bistable liquid crystal display unit 15 has parameters such as suitable gray scale voltage, GAMA voltage, realize normally showing.
Compared with prior art, this bistable state liquid crystal display apparatus 1 is in the situation of resolution changing, and the demonstration lattice parameter that only need to adjust this micro-control unit 11 can realize the demonstration of corresponding resolution, and its drive circuit is simple, has higher versatility. Simultaneously, even in the situation of changing this bistable liquid crystal display unit 15, do not need the drive circuit that more renews yet, and only need to adjust the demonstration lattice parameter of this micro-control unit 11 and the output voltage of this DC-DC power circuit 12, just can adjust the parameters such as gray scale voltage and/or GAMA voltage, realize normally showing. This bistable state liquid crystal display apparatus 1 can be realized the demonstration of multiple resolution ratio, and has simple, general drive circuit, fully satisfies the client to the demand of bistable state liquid crystal display apparatus versatility.
Claims (5)
1. liquid crystal indicator, it comprises a micro-control unit, one power circuit, one display driver circuit and a liquid crystal display, this micro-control unit is used for receiving and the processes and displays signal, this power circuit provides driving voltage for this display driver circuit, this display driver circuit receives the shows signal of this micro-control unit, and drive this liquid crystal display and realize that corresponding image shows, this micro-control unit and this liquid crystal display electrically connect, this micro-control unit is according to the display resolution of this liquid crystal display of the corresponding control of difference of shows signal, this micro-control unit is adjusted it and is shown that lattice parameter is to adjust the display resolution of this liquid crystal display, it is characterized in that: this micro-control unit and this power circuit electrically connect, and this micro-control unit is adjusted the output voltage of this power circuit to adjust the driving voltage of this driving circuit.
2. liquid crystal indicator as claimed in claim 1 is characterized in that: this driving voltage comprises gray scale voltage and/or GAMA voltage.
3. liquid crystal indicator as claimed in claim 1 is characterized in that: this display driver circuit comprises a horizontal drive circuit and a column drive circuit.
4. liquid crystal indicator as claimed in claim 1 is characterized in that: this liquid crystal display is a bistable state liquid crystal display.
5. liquid crystal indicator as claimed in claim 1 is characterized in that: this power circuit is one direct current/DC power supply circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203051781U CN201655262U (en) | 2009-06-26 | 2009-06-26 | Liquid crystal display device and drive circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203051781U CN201655262U (en) | 2009-06-26 | 2009-06-26 | Liquid crystal display device and drive circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655262U true CN201655262U (en) | 2010-11-24 |
Family
ID=43120506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203051781U Expired - Lifetime CN201655262U (en) | 2009-06-26 | 2009-06-26 | Liquid crystal display device and drive circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655262U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020530124A (en) * | 2017-08-07 | 2020-10-15 | 京東方科技集團股▲ふん▼有限公司Ｂｏｅ Ｔｅｃｈｎｏｌｏｇｙ Ｇｒｏｕｐ Ｃｏ．，Ｌｔｄ． | Display panel drive circuit, display panel drive method and display panel |
-
2009
- 2009-06-26 CN CN2009203051781U patent/CN201655262U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020530124A (en) * | 2017-08-07 | 2020-10-15 | 京東方科技集團股▲ふん▼有限公司Ｂｏｅ Ｔｅｃｈｎｏｌｏｇｙ Ｇｒｏｕｐ Ｃｏ．，Ｌｔｄ． | Display panel drive circuit, display panel drive method and display panel |
| JP7131748B2 (en) | 2017-08-07 | 2022-09-06 | 京東方科技集團股▲ふん▼有限公司 | Display panel drive circuit, display panel drive method, and display panel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2743910B1 (en) | Display device and driving method thereof | |
| US8248340B2 (en) | Liquid crystal display capable of split-screen displaying and computer system using same | |
| KR101263513B1 (en) | Backlight drive apparatus of LCD and drive method thereof | |
| CN105955532B (en) | Touch-control display panel and its driving circuit, electronic equipment | |
| EP2544169A1 (en) | Display device, method for driving same, and liquid crystal display device | |
| CN107481695A (en) | Time schedule controller, display driver circuit and its control method, display device | |
| CN102968971A (en) | Liquid crystal display driving method, time sequence control device and liquid crystal display device | |
| CN102789771A (en) | Polarity-reversal signal converting method and device and display | |
| US20120218316A1 (en) | Lcd device and driving method thereof | |
| CN103576405A (en) | Display device adopting electronic ink paper together with liquid crystal display | |
| CN102646398B (en) | Image display method and device | |
| CN202084281U (en) | Driving device for liquid crystal display and liquid crystal display device | |
| CN102201213B (en) | Liquid crystal display device without upper plate electrode and driving method thereof | |
| CN201655262U (en) | Liquid crystal display device and drive circuit thereof | |
| CN106098006B (en) | A kind of data driven unit and method of liquid crystal display panel | |
| TWI584035B (en) | Display device and display method | |
| CN102262860A (en) | Liquid crystal display and backlight driving device thereof | |
| US20140132493A1 (en) | Clock Driver of Liquid Crystal Display | |
| CN105551448B (en) | The driving circuit and driving method of display panel | |
| CN108806585A (en) | A kind of driving circuit, driving method and display device | |
| CN100543527C (en) | Liquid crystal indicator and driving method thereof | |
| CN101183199A (en) | LCD device removing ghost | |
| KR20080004851A (en) | Liquid crystal display device | |
| CN202473192U (en) | Drive control panel of liquid crystal display | |
| CN202307089U (en) | Multi-picture partition processing system built in liquid crystal monitor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |