CN105869595B - A kind of display driving system and liquid crystal display - Google Patents
A kind of display driving system and liquid crystal display Download PDFInfo
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- CN105869595B CN105869595B CN201610395763.XA CN201610395763A CN105869595B CN 105869595 B CN105869595 B CN 105869595B CN 201610395763 A CN201610395763 A CN 201610395763A CN 105869595 B CN105869595 B CN 105869595B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
A kind of display driving system of present invention offer and liquid crystal display, display driving system include：Main control unit generates over-pressed signal for the picture signal that receive to be carried out image procossing, and according to the gray value difference of adjacent two field pictures, and treated picture signal and over-pressed Signal coding are transferred to source drive unit at data image signal；Source drive unit is used to generate source drive picture element signal according to data image signal, source drive unit is additionally operable to generate the first timing control signal and the second timing control signal, wherein, first timing control signal exports source drive picture element signal into liquid crystal display panel for controlling source electrode driving unit, second timing control signal is used to control the row electrode lines of drive element of the grid driving liquid crystal display panel so that source drive picture element signal is shown in liquid crystal display panel.Display driving system and liquid crystal display provided by the invention have many advantages, such as integrated level height, at low cost.
Description
Technical field
The present invention relates to technical field of liquid crystal display, more particularly to a kind of display driving system, and apply the display
The liquid crystal display of drive system.
Background technology
With the development of technical field of liquid crystal display, LCD display device is in the side towards lightening, low-power consumption, low cost
To development, especially in terms of reducing cost, however in existing TFT LCD panel, there are sequential control circuits etc.
Various chips lead to the cost of TFT LCD panel since the cost of manufacture of these chips itself is higher, to drop
The low competitiveness of product.
Therefore, it is necessary to a kind of display driving system and liquid crystal display be provided, in the feelings for not changing display image quality
Under condition, the usage quantity of chip is reduced, to achieve the purpose that reduce cost, improves product competitiveness.
Invention content
The embodiment of the present invention provides a kind of display driving system and the liquid crystal display using the display driving system, with
Solve above-mentioned technical problem.
The embodiment of the present invention provides a kind of display driving system comprising：Main control unit, source drive unit and grid
Driving unit；
The main control unit is connect with the source drive unit, for the picture signal received to be carried out image
Processing, and over-pressed signal is generated according to the gray value difference of adjacent two field pictures, and will treated picture signal and mistake
Pressure Signal coding is transferred to the source drive unit at data image signal；
The source drive unit, is connected with the drive element of the grid, for being given birth to according to the data image signal
At source drive picture element signal, the source drive unit is additionally operable to generate the first timing control signal and the second timing control letter
Number, wherein first timing control signal is defeated by the source drive picture element signal for controlling the source drive unit
Go out into liquid crystal display panel, second timing control signal is for controlling the drive element of the grid driving LCD display
The row electrode lines of plate so that the source drive picture element signal is shown in liquid crystal display panel.
In display driving system described in the embodiment of the present invention, the main control unit includes SOC chip, wherein described
Image procossing subelement, overvoltage drive subelement and storing sub-units are integrated in SOC chip, described image handles subelement and uses
Image procossing is carried out in the picture signal received to the SOC chip, and picture signal is stored in described deposit by treated
It stores up in subelement, the overvoltage drive subelement is used for according to the previous frame figure stored in present image and the storing sub-units
The gray value difference of picture generates over-pressed signal.
In display driving system described in the embodiment of the present invention, white balance adjusting is also integrated in the SOC chip
Unit, the white balance adjusting subelement are used to carry out brightness regulation to described image processing subelement treated picture signal
And/or coloration is adjusted, and the picture signal after adjusting is stored in the storing sub-units.
In display driving system described in the embodiment of the present invention, clock subelement, institute are also integrated in the SOC chip
It states clock subelement and is generated for generating clock initial signal, the clock initial signal for triggering the source drive unit
First timing control signal and the second timing control signal.
In display driving system described in the embodiment of the present invention, the source drive unit includes that timing control is single
Member, the timing control subelement are used to generate the first timing control signal and the second sequential control according to the clock initial signal
Signal processed.
In display driving system described in the embodiment of the present invention, the main control unit connects with the source drive unit
It connects including by Mini-LVDS interfaces or the connection of RSDS interfaces.
In display driving system described in the embodiment of the present invention, the main control unit receives described image signal and includes
Described image signal is received by HDMI interface or USB interface.
In display driving system described in the embodiment of the present invention, the display driving system further includes DC to DC electricity
Source unit, for providing voltage to the source drive unit and drive element of the grid.
In display driving system described in the embodiment of the present invention, it is also integrated with coded sub-units in the SOC chip, uses
Picture signal that treated described in inciting somebody to action and over-pressed Signal coding are at data image signal.
The present invention also provides a kind of liquid crystal display, the liquid crystal display includes any one of the above display driving system
System.
Compared with prior art, display driving system provided in an embodiment of the present invention and the application display driving system
Liquid crystal display can be completed scheme by being used cooperatively for main control unit, source drive unit and drive element of the grid
As signal is shown in liquid crystal display panel, the display driving system and liquid crystal display in this preferred embodiment have integrated
Degree is high, few using number of chips, at low cost, the advantages that economizing on resources.
Description of the drawings
Fig. 1 is the structural schematic diagram for the display driving system that the preferred embodiment of the present invention provides；
Fig. 2 is the structural schematic diagram for the main control unit that the preferred embodiment of the present invention provides；
Fig. 3 is the structural schematic diagram for the source drive unit that the preferred embodiment of the present invention provides.
Specific implementation mode
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below to required in embodiment
Attached drawing to be used is briefly described.The accompanying drawings in the following description is only the section Example of the present invention, general for this field
For logical technical staff, without creative efforts, other attached drawings can also be obtained according to these attached drawings.
Fig. 1 is referred to, Fig. 1 is the structural schematic diagram for the display driving system that the preferred embodiment of the present invention provides, the present invention
Display driving system include：Main control unit 11, source drive unit 12 and drive element of the grid 13；
The main control unit 11 is connect with the source drive unit 12, for carrying out the picture signal received
Image procossing, and over-pressed signal is generated according to the gray value difference of adjacent two field pictures, and will treated picture signal with
And over-pressed Signal coding is transferred to the source drive unit 12 at data image signal；
The source drive unit 12, is connected with the drive element of the grid 13, for being believed according to the digital picture
Number source drive picture element signal is generated, the source drive unit 12 is additionally operable to generate the first timing control signal and the second sequential
Control signal, wherein first timing control signal is for controlling the source drive unit 12 by the source drive picture
Plain signal is exported into liquid crystal display panel, and second timing control signal is for controlling the driving of the drive element of the grid 13
The row electrode lines of liquid crystal display panel so that the source drive picture element signal is shown in liquid crystal display panel.
The display driving system in this preferred embodiment is introduced in detail below in conjunction with Fig. 1 to Fig. 3.
Fig. 2 and Fig. 3 are referred to, Fig. 2 and Fig. 3 are respectively that the main control unit that the preferred embodiment of the present invention provides and source electrode drive
The structural schematic diagram of moving cell.In the preferred embodiment, main control unit 11 includes SOC chip, is integrated in SOC chip
Image procossing subelement 111, overvoltage drive subelement 112, storing sub-units 113, white balance adjusting subelement 114, coding
Unit 115 and clock subelement 116, source drive unit 12 include timing control subelement 121.
SOC chip in main control unit 11 receives picture signal to display by HDMI interface from outside, at it
In his embodiment, other interface picture signals such as USB interface can also be used, are not specifically limited herein.
After SOC chip receives picture signal, image procossing subelement 111 will carry out image procossing to picture signal,
And picture signal is stored in storing sub-units 113 by treated, here, image procossing subelement 111 can be according to user
The setting that picture is shown to carry out image procossing to picture signal, for example, user needs to turn down the colour temperature of current display picture,
User sends control signal using equipment such as remote controlers to display driving system, and image procossing subelement 111 will be according to the control
Signal does corresponding image procossing to picture signal so that the picture shown meets the requirement of user, and will treated figure
As signal is stored in storing sub-units 113, when the picture signal that image procossing subelement 111 continues after treatment, according to storage
The previous frame image that subelement 113 stores handles current image signal, for example, storing sub-units 113 store it is upper
One frame image is the image of low color temperature, then subsequent picture signal is also processed into the figure of low color temperature by image procossing subelement 111
Picture.
White balance adjusting subelement 114 obtains image procossing subelement 111 from storing sub-units 113 treated image
Signal, and picture signal carries out brightness regulation and coloration adjusting to treated, and the picture signal after adjusting is stored in
It stores up in subelement 113, certainly in other examples, can also only carry out brightness regulation or coloration is adjusted, not do have herein
Body limits.
Overvoltage drive subelement 112 is according to the gray scale of the previous frame image and present image that are stored in storing sub-units 113
The gray value difference of the over-pressed signal of value difference value generation, previous frame image and present image is bigger, in generated overvoltage signal
Voltage value is bigger, which is used to increase the voltage of liquid crystal molecule both ends application so that and liquid crystal molecule can quickly be overturn,
The motion blur phenomenon occurred when display image is effectively avoided, in the preferred embodiment, due to overvoltage drive subelement 112 and image
111 public storing sub-units 113 of subelement are handled, the cost of manufacture of display driving system is greatly reduced, improves simultaneously
The integrated level of SOC chip so that the structure of display driving system more simplifies.
Coded sub-units 115 for will through image procossing subelement 111 and white balance adjusting subelement 114 treated figure
As signal and over-pressed Signal coding are at data image signal.Clock subelement 116 generates clock initial signal, main control unit 11
Data image signal and clock initial signal are transmitted to source drive unit 12 by Mini-LVDS interfaces together, certainly,
In other embodiments, other interfaces such as RSDS interfaces can also be used to be transmitted to source drive unit 12, do not done herein specific
It limits.
It, will be according to data image signal after source drive unit 12 receives clock initial signal and data image signal
Source drive picture element signal is generated, meanwhile, timing control subelement 121 generates the first timing control according to clock initial signal to be believed
Number and the second timing control signal, the first timing control signal is for controlling source electrode driving unit 12 by source drive picture element signal
In output to liquid crystal display panel, the second timing control signal will be transferred to drive element of the grid 13, be driven for controlling grid
Moving cell 13 drives the row electrode lines of liquid crystal display panel, in the common of the first timing control signal and the second timing control signal
Under effect, source drive picture element signal is shown in liquid crystal display panel in an orderly manner.
In the preferred embodiment, display driving system further includes DC-DC power supply unit, for inputting mainboard
Voltage be converted into corresponding voltage value and be input in source drive unit 12 and drive element of the grid 13, ensure that each unit can
With normal operation.
The display driving system that this preferred embodiment provides, main control unit carry out at image the picture signal received
Reason, and over-pressed signal is generated, and picture signal is transmitted to source with over-pressed Signal coding at data image signal by treated
Pole driving unit, source drive unit generates source drive picture element signal according to data image signal, and generates the first sequential
Signal and the second timing control signal are controlled, under the control of the first timing control signal and the second timing control signal, by source
Pole driving picture element signal is shown in liquid crystal display panel, compared with prior art, the display driving system in this preferred embodiment
The integrated level of system is high, and the number of chips used is few, greatly reduces the cost of display driving system, economizes on resources.
This preferred embodiment also provides a kind of liquid crystal display, which includes liquid crystal display panel and above-mentioned
Display driving system has been done due to the structure of display driving system and has been introduced in detail in front, and details are not described herein.This is excellent
The liquid crystal display in embodiment is selected, as a result of display driving system provided by the invention, makes it have integrated level height, knot
The advantages that structure is simple, at low cost, meanwhile, the competitiveness of product also increases.
In conclusion although the present invention is disclosed above with preferred embodiment, above preferred embodiment is not to limit
The system present invention, those skilled in the art can make various changes and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention is subject to the range that claim defines.
Claims (10)
1. a kind of display driving system, including source drive unit and drive element of the grid, which is characterized in that the display driving
System further includes：Main control unit；
The main control unit is connect with the source drive unit, for the picture signal received to be carried out image procossing,
And over-pressed signal is generated according to the gray value difference of adjacent two field pictures, and will treated picture signal and over-pressed signal
It is encoded into data image signal and is transferred to the source drive unit；
The source drive unit, is connected with the drive element of the grid, for generating source according to the data image signal
Pole drives picture element signal, the source drive unit to be additionally operable to generate the first timing control signal and the second timing control signal,
Wherein, first timing control signal for control the source drive unit by the source drive picture element signal export to
In liquid crystal display panel, second timing control signal is used to control the drive element of the grid driving liquid crystal display panel
Row electrode lines so that the source drive picture element signal is shown in liquid crystal display panel.
2. display driving system according to claim 1, which is characterized in that the main control unit includes SOC chip,
Described in image procossing subelement, overvoltage drive subelement and storing sub-units, described image processing are integrated in SOC chip
Unit is used to carry out image procossing to the picture signal that the SOC chip receives, and picture signal is stored in by treated
In the storing sub-units, the overvoltage drive subelement be used for according to present image with store in the storing sub-units
The gray value difference of one frame image generates over-pressed signal.
3. display driving system according to claim 2, which is characterized in that be also integrated with white balance in the SOC chip
Regulator unit, the white balance adjusting subelement are used to carry out described image processing subelement treated picture signal bright
Degree is adjusted and/or coloration is adjusted, and the picture signal after adjusting is stored in the storing sub-units.
4. display driving system according to claim 2, which is characterized in that be also integrated with clock in the SOC chip
Unit, the clock subelement is for generating clock initial signal, and the clock initial signal is for triggering the source drive
Unit generates the first timing control signal and the second timing control signal.
5. display driving system according to claim 4, which is characterized in that the source drive unit includes timing control
Subelement, when the timing control subelement is used to generate the first timing control signal and second according to the clock initial signal
Sequence control signal.
6. display driving system according to claim 2, which is characterized in that be also integrated with coding in the SOC chip
Unit, for will treated the picture signal and over-pressed Signal coding at data image signal.
7. display driving system according to claim 1, which is characterized in that the main control unit and the source drive
Unit connection includes being connected by Mini-LVDS interfaces or RSDS interfaces.
8. display driving system according to claim 1, which is characterized in that the main control unit receives described image letter
Number include that described image signal is received by HDMI interface or USB interface.
9. display driving system according to claim 1, which is characterized in that the display driving system further includes that direct current turns
DC power source unit, for providing voltage to the source drive unit and drive element of the grid.
10. a kind of liquid crystal display, which is characterized in that the liquid crystal display includes that any one in claim 1 to 9 is shown
Drive system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610395763.XA CN105869595B (en) | 2016-06-03 | 2016-06-03 | A kind of display driving system and liquid crystal display |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610395763.XA CN105869595B (en) | 2016-06-03 | 2016-06-03 | A kind of display driving system and liquid crystal display |
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| CN105869595A CN105869595A (en) | 2016-08-17 |
| CN105869595B true CN105869595B (en) | 2018-07-27 |
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| CN109358458B (en) * | 2018-10-22 | 2020-10-30 | 深圳市华星光电半导体显示技术有限公司 | Display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002202493A (en) * | 2000-12-28 | 2002-07-19 | Toshiba Corp | Liquid crystal display device |
| CN103235431A (en) * | 2013-04-03 | 2013-08-07 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and driving method thereof |
| CN104680967A (en) * | 2015-03-20 | 2015-06-03 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN104751766A (en) * | 2015-04-08 | 2015-07-01 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
| CN204740842U (en) * | 2015-05-12 | 2015-11-04 | 凌巨科技股份有限公司 | Display device and driving apparatus thereof |
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2016
- 2016-06-03 CN CN201610395763.XA patent/CN105869595B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002202493A (en) * | 2000-12-28 | 2002-07-19 | Toshiba Corp | Liquid crystal display device |
| CN103235431A (en) * | 2013-04-03 | 2013-08-07 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and driving method thereof |
| CN104680967A (en) * | 2015-03-20 | 2015-06-03 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN104751766A (en) * | 2015-04-08 | 2015-07-01 | 京东方科技集团股份有限公司 | Display panel, driving method thereof and display device |
| CN204740842U (en) * | 2015-05-12 | 2015-11-04 | 凌巨科技股份有限公司 | Display device and driving apparatus thereof |
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