CN103280194A - Liquid crystal display controller and liquid crystal display - Google Patents
Liquid crystal display controller and liquid crystal display Download PDFInfo
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- CN103280194A CN103280194A CN2011100231110A CN201110023111A CN103280194A CN 103280194 A CN103280194 A CN 103280194A CN 2011100231110 A CN2011100231110 A CN 2011100231110A CN 201110023111 A CN201110023111 A CN 201110023111A CN 103280194 A CN103280194 A CN 103280194A
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- crystal display
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Abstract
The invention belongs to the field of a liquid crystal display control technology and provides a liquid crystal display controller and a liquid crystal display. A first input end of the liquid crystal display controller is connected with a controller of a user side; a first output end of the liquid crystal display controller is connected with a liquid crystal display unit of the liquid crystal display; and the liquid crystal display controller is used for receiving data to be displayed and a control instruction which are output by the controller of the user side, analyzing the control instruction, and controlling the liquid crystal display unit to display the data to be displayed according to the analyzed control instruction. The liquid crystal display controller does not realize the control to the liquid crystal display unit directly by the controller of the user side, but utilizes the liquid crystal display controller to expand driving capability of an existing liquid crystal display control part, so as to provide supports for the liquid crystal display unit to display the display contents with abundant colors, high resolution and large capacity; and the liquid crystal display controller and the liquid crystal display can sufficiently meet display requirements according to demands and are particularly suitable for the liquid crystal display in the industrial field.
Description
Technical field
The invention belongs to liquid crystal display control technology field, relate in particular to a kind of LCD controller and LCD.
Background technology
At present, people get over Gao Yuegao to the requirement of the display technique of LCD, and the display technique of LCD just develops towards high resolving power, abundant directions such as displaying contents.
The LCD that prior art provides, particularly be applied to the LCD in the industrial circle, its LCD controller is directly by single-chip microcomputer liquid crystal display to be realized showing control, its control mode is simple, yet because the restriction of the deal with data ability of single-chip microcomputer own, make this kind control mode control ability a little less than, the display color of liquid crystal display is single, displaying contents is limited, resolution is low, is difficult to satisfy people's display requirement; And the implementation method of this scheme has taken too much mcu resource, the efficient of LCD controller is reduced, even can't satisfy the driving requirement of LCD.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of LCD controller, the LCD controller that being intended to solve prior art provides is directly controlled the demonstration of liquid crystal display by chip microcontroller, make the display color of liquid crystal display single, display resolution is low, is difficult to satisfy the problem of people's display requirement.
The embodiment of the invention is achieved in that a kind of LCD controller, and the first input end of described LCD controller is connected with the controller of user side, and first output terminal of described LCD controller is connected with the liquid crystal display of LCD;
Described LCD controller is used for data to be displayed and the steering order of the controller output of the described user side of reception, and after described steering order resolved, control described liquid crystal display according to the described steering order after resolving and show described data to be displayed.
Another purpose of the embodiment of the invention is to provide a kind of LCD, and the LCD controller that comprises liquid crystal display and connect described liquid crystal display, described LCD controller are aforesaid LCD controller.
The embodiment of the invention utilizes its LCD controller that provides to expand the driving force of available liquid crystal display control section, for make that the liquid crystal display display color is abundant, high resolving power, jumbo displaying contents provide support, can satisfy display requirement fully as required.
Description of drawings
Fig. 1 is the structure principle chart of the LCD controller that provides of first embodiment of the invention;
Fig. 2 is the structure principle chart of the LCD controller that provides of second embodiment of the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
The embodiment of the invention utilizes its LCD controller that provides to expand the driving force of available liquid crystal display control section, for make that the liquid crystal display display color is abundant, high resolving power, jumbo displaying contents provide system's support.
Fig. 1 shows the structural principle of the LCD controller that first embodiment of the invention provides, and for convenience of explanation, only shows the part relevant with the embodiment of the invention.
The first input end of the LCD controller 1 that first embodiment of the invention provides and the controller of user side, as: the output terminal of single-chip microcomputer, PLC network etc. connects, and first output terminal of LCD controller 1 is connected with the liquid crystal display that is used for displaying contents of LCD.LCD controller 1 is used for data to be displayed and the steering order of the controller output of reception user side, after this steering order is resolved, controls this liquid crystal display according to the steering order after resolving and shows data to be displayed.Liquid crystal display wherein can be any in the available liquid crystal display unit, when it is Thin Film Transistor (TFT) (the Thin Film Transistor of rgb interface, TFT) during liquid crystal display, LCD controller 1 realizes and being connected of the rgb interface of liquid crystal display by the TTL interface.Steering order wherein comprises that at least the sequential control that the display timing generator of liquid crystal display is controlled arranges instruction, can also comprise the various operational orders to content to be displayed.
The not direct controller by user side of the LCD controller 1 that the embodiment of the invention provides is realized the control to liquid crystal display, but utilize LCD controller 1 to expand the driving force of available liquid crystal display control section, for make that the liquid crystal display display color is abundant, high resolving power, jumbo displaying contents provide support, can satisfy display requirement fully as required, be specially adapted to the liquid crystal display in the industrial circle.
In order to realize that this backlight liquid crystal display is regulated, in the first embodiment of the invention, second output terminal of LCD controller 1 connects this backlight liquid crystal display driver element; This steering order can also comprise regulating command backlight.LCD controller 1 is resolved this regulating command backlight after receiving this regulating command backlight, and regulates the backlight illumination of this backlight driving unit according to the regulating command backlight after resolving; This steering order can also comprise backlight control instruction, and LCD controller 1 is after receiving this backlight control instruction, after this backlight control instruction resolved, and according to the unlatching of this backlight driving unit of backlight control instruction control after resolving or close.
In order to realize the mutual of user and liquid crystal display, in the first embodiment of the invention, this LCD also comprises the touch signal receiving element of second input end that connects LCD controller 1.LCD controller 1 also is used for receiving the user by the simulated touch signal of touch signal receiving element input, and after converting this simulated touch signal to digital touch signal, according to this numeral touch signal, the control liquid crystal display shows corresponding content, to strengthen sense of experience of users.
When the controller of user side is single-chip microcomputer, as shown in Figure 1, the LCD controller 1 that first embodiment of the invention provides specifically comprises: the control module 11 that is connected with the single-chip microcomputer of user side by the Single Chip Microcomputer (SCM) system interface, the data to be displayed and the steering order that are used for the single-chip microcomputer output of reception user side, and after this steering order resolved, control this liquid crystal display according to the steering order after resolving and show data to be displayed.Control module 11 can be any in the existing high-performance processor, as: special IC (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field-Programmable Gate Array, FPGA) etc.
Data to be displayed wherein can be cached in inside or the outside of control module 11.When this data to be displayed was cached in control module 11 outside, liquid crystal display control module 1 can also comprise: connect the buffer cell 12 of control module 11, be used for the data to be displayed that caching control unit 11 receives.
In addition, liquid crystal display control module 1 can also comprise: connect the storage unit 13 of control module 11, control module 11 also is used for the font information according to storage unit 13 storages, and the control liquid crystal display shows content to be displayed with corresponding font.
The embodiment of the invention also provides a kind of LCD, comprise liquid crystal display, backlight driving unit and LCD controller, the description of the LCD that the function of the connected mode of this LCD controller and this liquid crystal display and backlight driving unit and the structure of this LCD controller and each ingredient as above provides first embodiment of the invention is described; This LCD can also comprise a touch signal receiving element, and the description of the LCD that the connected mode of this LCD controller and this touch signal receiving element as above provides first embodiment of the invention is described, does not repeat them here.
When the controller of user side is single-chip microcomputer and PLC network, and by the PLC network during to control module 11 sending controling instructions, show the structural principle of the LCD controller 1 that second embodiment of the invention provides as Fig. 2, for convenience of explanation, only show the part relevant with the embodiment of the invention.
In second embodiment of the invention, the steering order of output such as (as the RS232 interface) can not controlled unit 11 directly be handled because the interface unit of the PLC network of user side, for this reason, the LCD controller 1 that second embodiment of the invention provides also comprises: connect the level conversion unit 15 of the controller of user side, carry out the level conversion processing for the steering order that the PLC network with user side sends; And connect the microprocessor unit 14 of level conversion unit 15 by serial line interface (as the RS232 interface etc.), be used for the steering order that level conversion unit 15 carries out after level conversion is handled is resolved; At this moment, control module 11 both can directly connect the single-chip microcomputer of user side by the Single Chip Microcomputer (SCM) system interface, the also design of the system integration for convenience, and connect the single-chip microcomputer of user sides by level conversion unit 15, control module 11 receives the data to be displayed of the single-chip microcomputer output of user side, and the steering order after resolving according to microprocessor unit 14 is afterwards controlled this liquid crystal display and shown data to be displayed.Certainly, the data to be displayed that level conversion unit 15 can also send for the PLC network with user side carries out level conversion to be handled, the steering order of microprocessor unit 14 after level conversion unit 15 being carried out the level conversion processing resolved, can also receive data to be displayed by level conversion unit 15, at this moment, control module 11 receives steering order and the data to be displayed after the parsing of microprocessor units 14 outputs, and controls this liquid crystal display demonstration data to be displayed according to the steering order after this parsings.
In addition, the structure of the LCD controller 1 that second embodiment of the invention provides and the function of each ingredient are described identical with the LCD controller 1 that as above first embodiment of the invention provides, and do not repeat them here.
The embodiment of the invention also provides a kind of LCD, comprise liquid crystal display, backlight driving unit and LCD controller, the description of the LCD that the function of the connected mode of this LCD controller and this liquid crystal display and backlight driving unit and the structure of this LCD controller and each ingredient as above provides second embodiment of the invention is described; This LCD can also comprise a touch signal receiving element, and the description of the LCD that the connected mode of this LCD controller and this touch signal receiving element as above provides second embodiment of the invention is described, does not repeat them here.
The embodiment of the invention utilizes its LCD controller that provides to expand the driving force of available liquid crystal display control section, for make that the liquid crystal display display color is abundant, high resolving power, jumbo displaying contents provide support, can satisfy display requirement fully as required; In addition, the user can also be by the On/Off of backlight driving unit and the adjusting of backlight illumination in this LCD controller control LCD, and can identify user's touch signal, and the control liquid crystal display shows corresponding contents according to touch signal, is specially adapted to the liquid crystal display control in the industrial circle.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a LCD controller is characterized in that, the first input end of described LCD controller is connected with the controller of user side, and first output terminal of described LCD controller is connected with the liquid crystal display of LCD;
Described LCD controller is used for data to be displayed and the steering order of the controller output of the described user side of reception, and after described steering order resolved, control described liquid crystal display according to the described steering order after resolving and show described data to be displayed.
2. LCD controller as claimed in claim 1 is characterized in that, second output terminal of described LCD controller connects described backlight liquid crystal display driver element, and described steering order comprises regulating command backlight; Described LCD controller is resolved described regulating command backlight after receiving described regulating command backlight, and regulates the backlight illumination of described backlight driving unit according to the regulating command described backlight after resolving.
3. LCD controller as claimed in claim 2 is characterized in that, described steering order comprises the backlight control instruction; Described LCD controller is resolved described backlight control instruction after receiving the instruction of described backlight control, and according to the unlatching of the described backlight driving unit of described backlight control instruction control after resolving or close.
4. LCD controller as claimed in claim 1 is characterized in that, described liquid crystal display is the Thin Film Transistor (TFT) liquid crystal display of rgb interface; Described LCD controller is connected with the rgb interface of described liquid crystal display by the TTL interface.
5. LCD controller as claimed in claim 1 is characterized in that, the controller of described user side is single-chip microcomputer; Described LCD controller comprises:
The control module that is connected with described single-chip microcomputer by the Single Chip Microcomputer (SCM) system interface, be used for receiving data to be displayed and the steering order of described single-chip microcomputer output, and after described steering order resolved, control described liquid crystal display according to the described steering order after resolving and show described data to be displayed.
6. LCD controller as claimed in claim 5 is characterized in that, described liquid crystal display control module also comprises: connect the buffer cell of described control module, be used for the described data to be displayed that the described control module of buffer memory receives.
7. LCD controller as claimed in claim 1 is characterized in that, the controller of described user side is the single-chip microcomputer of the described data to be displayed of output and the PLC network of the described steering order of output; Described LCD controller comprises:
The control module that is connected with described single-chip microcomputer by the Single Chip Microcomputer (SCM) system interface;
The level conversion unit that connects the controller of described user side is used for described steering order and the data to be displayed of described PLC network output are carried out the level conversion processing; And
Connect the microprocessor unit of described level conversion unit by serial line interface, be used for the described steering order that described level conversion unit carries out after level conversion is handled is resolved;
Described control module be used for to receive the data to be displayed of described microprocessor unit output and resolve after described steering order, and control described liquid crystal display according to described steering order and show described data to be displayed.
8. LCD controller as claimed in claim 7 is characterized in that, described liquid crystal display control module also comprises: connect the buffer cell of described control module, be used for the described data to be displayed that the described control module of buffer memory receives.
9. as each described LCD controller of claim 5 to 8, it is characterized in that described control module is special IC or field programmable gate array.
10. LCD, the LCD controller that comprises liquid crystal display and connect described liquid crystal display is characterized in that, described LCD controller is as each described LCD controller of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100231110A CN103280194A (en) | 2011-01-20 | 2011-01-20 | Liquid crystal display controller and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100231110A CN103280194A (en) | 2011-01-20 | 2011-01-20 | Liquid crystal display controller and liquid crystal display |
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| CN103280194A true CN103280194A (en) | 2013-09-04 |
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| CN2011100231110A Pending CN103280194A (en) | 2011-01-20 | 2011-01-20 | Liquid crystal display controller and liquid crystal display |
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Citations (7)
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| US5909206A (en) * | 1993-12-07 | 1999-06-01 | Hitachi, Ltd. | Display control device |
| US6226094B1 (en) * | 1996-01-05 | 2001-05-01 | King Jim Co., Ltd. | Apparatus and method for processing character information |
| CN1423226A (en) * | 2002-11-13 | 2003-06-11 | 济南新华印刷厂 | Multifunction electronic reader and its working mode |
| CN1864217A (en) * | 2003-10-01 | 2006-11-15 | 三星电子株式会社 | Storage medium including text-based caption information, reproducing apparatus and reproducing method thereof |
| CN1983239A (en) * | 2006-04-06 | 2007-06-20 | 华为技术有限公司 | Method and system for inputting and displaying character |
| CN201355436Y (en) * | 2009-02-27 | 2009-12-02 | 郑州紫辰科技开发有限公司 | Active type PLC intelligent liquid crystal display |
| CN201716967U (en) * | 2010-05-21 | 2011-01-19 | 中国科学院长春光学精密机械与物理研究所 | Color TFT-LCD liquid crystal display control device supporting images in JPEG format |
-
2011
- 2011-01-20 CN CN2011100231110A patent/CN103280194A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5909206A (en) * | 1993-12-07 | 1999-06-01 | Hitachi, Ltd. | Display control device |
| US6226094B1 (en) * | 1996-01-05 | 2001-05-01 | King Jim Co., Ltd. | Apparatus and method for processing character information |
| CN1423226A (en) * | 2002-11-13 | 2003-06-11 | 济南新华印刷厂 | Multifunction electronic reader and its working mode |
| CN1864217A (en) * | 2003-10-01 | 2006-11-15 | 三星电子株式会社 | Storage medium including text-based caption information, reproducing apparatus and reproducing method thereof |
| CN1983239A (en) * | 2006-04-06 | 2007-06-20 | 华为技术有限公司 | Method and system for inputting and displaying character |
| CN201355436Y (en) * | 2009-02-27 | 2009-12-02 | 郑州紫辰科技开发有限公司 | Active type PLC intelligent liquid crystal display |
| CN201716967U (en) * | 2010-05-21 | 2011-01-19 | 中国科学院长春光学精密机械与物理研究所 | Color TFT-LCD liquid crystal display control device supporting images in JPEG format |
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| DD01 | Delivery of document by public notice |
Addressee: Tianma Microelectronics Co., Ltd. Document name: Notification to Make Rectification |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130904 |