CN100399408C - Driver and related driving module, display system and electronic device - Google Patents
Driver and related driving module, display system and electronic device Download PDFInfo
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- CN100399408C CN100399408C CNB200510107045XA CN200510107045A CN100399408C CN 100399408 C CN100399408 C CN 100399408C CN B200510107045X A CNB200510107045X A CN B200510107045XA CN 200510107045 A CN200510107045 A CN 200510107045A CN 100399408 C CN100399408 C CN 100399408C
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Abstract
The present invention relates to a driving circuit which is integrated with a display panel. The driving circuit comprises a selector unit which receives an image datum and a screen regulating display (OSD) datum and a data-analog conversion unit, wherein the selector unit is used for selectively outputting the image datum or outputting the screen regulating display datum according to a control signal, and the data-analog conversion unit is used for converting the image datum or the screen regulating display datum into an analog signal in order to drive a pixel array.
Description
Technical field
The present invention relates to a kind of driving circuit, particularly relate to a kind of driving circuit and be integrated in display panel, and to switch the image that is shown on the display be video signal data or screen regulation and control video datas.
Background technology
LCD has been occupied leading status owing to have high resolving power, high coloured silk, low power consumption, low-voltage power supply and frivolous characteristic in display technology.In addition, the screen regulation and control show that (OSD) function also is widely used in the display, in order to adjust the setting of display.But in the display that uses digital interface, in order to realize osd function, external printed circuit board need be video signal data or osd data in increasing the image of selecting to be shown on the display in a switching unit (switch IC) also except needs one OSD integrated circuit.Yet this will cause external printed circuit board more complicated, increase in the design because of difficulty.
Summary of the invention
In view of this, primary and foremost purpose of the present invention is the handoff functionality of screen regulation and control demonstrations (OSD) is integrated in the driver of display panel, to simplify periphery circuit and assembly.
For achieving the above object, the invention provides a kind of driving circuit, be integrated on the display panel, this driving circuit comprises a selected cell, receive the regulation and control of an image data and a screen and show (OSD) data, in order to according to a controlling signal, optionally export this image data or export this screen regulation and control video data; And a digital-to-analog converting unit, in order to convert this image data or this screen regulation and control video data to an analog signal, in order to drive a pel array.
According to above-mentioned purpose, the present invention also provides a kind of driver module, comprises a printed circuit board (PCB), comprises that screen regulation and control show integrated circuit, in order to according to a horizontal synchronization signal and a vertical synchronizing signal, produces a screen regulation and control video data and a controlling signal; One drive circuit, be integrated on the display panel, couple a pel array and this printed circuit board (PCB), this driving circuit comprises a selected cell, receive an image data and this screen regulation and control video data, in order to according to this controlling signal, optionally export this image data or export this screen regulation and control video data; And a digital-to-analog converting unit, in order to convert this image data or this screen regulation and control video data to an analog signal, in order to drive this pel array.
According to above-mentioned purpose, the present invention also provides a kind of display system, comprises a printed circuit board (PCB), comprises that screen regulation and control show integrated circuit, in order to according to a horizontal synchronization signal and a vertical synchronizing signal, produces a screen regulation and control video data and a controlling signal; An and display panel, couple this printed circuit board (PCB), comprise an one drive circuit and a pel array, wherein this driving circuit comprises a selected cell, receive an image data and this screen regulation and control video data, in order to according to this controlling signal, optionally export this image data or export this screen regulation and control video data; And a digital-to-analog converting unit, in order to convert this image data or this screen regulation and control video data to an analog signal, in order to drive this pel array.
According to above-mentioned purpose, the present invention also provides a kind of electronic installation, comprises aforesaid display system; And a power supply unit, in order to supply power to this display system, with show image.
For above and other objects of the present invention, feature and advantage can be become apparent, preferred embodiment of the present invention cited below particularly, and be described with reference to the accompanying drawings as follows.
Description of drawings
Figure 1A shows an embodiment of display system of the present invention.
Figure 1B shows another embodiment of display system of the present invention.
Fig. 2 is a comparison list of the present invention.
Fig. 3 is for using the synoptic diagram of an electronic installation of display system shown in Figure 1A and Figure 1B.
The reference numeral explanation
10A, 10B: printed circuit board (PCB); 12: the screen regulation and control show integrated circuit;
14: Digital System Processor; 20A, 20B: display panel;
22: driving circuit; 24: pel array;
221: selected cell; 222: the brightness contrast control module;
223: gammate; 224: line counter-rotating control module;
225: the digital-to-analog converting unit; 100A, 100B: display system;
300: electronic installation; 310: shell;
320: power supply unit; Vsync: vertical synchronizing signal;
Hsync: horizontal synchronization signal; OSDD: screen regulation and control video data;
En1: controlling signal; VD1: image input data;
VD2, VD1 ": image data.
Embodiment
Figure 1A shows an embodiment of display system of the present invention.As shown in the figure, display system 100A comprises printed circuit board (PCB) 10A and display panel 20A.Printed circuit board (PCB) 10A comprises that the screen regulation and control show (onscreen display; OSD) integrated circuit 12, in order to according to a horizontal synchronization signal Hsync and a vertical synchronizing signal Vsync, produce screen regulation and control video data OSDD and controlling signal En1.
CCIR (Consultative Committee of International Radio) code translator 226 is in order to import data VD1 according to image, separate and translate image data VD1 " and horizontal synchronization signal Hsync and vertical synchronizing signal Vsync, and export screen regulation and control demonstration integrated circuit 12 and selected cell 221 respectively to.For example, image input data VD1 can be the image data that meets the CCIR656 form.
Selected cell 221 receives from screen regulation and control and shows the image data OSDD of integrated circuit 12 and image data VD1 from CCIR code translator 226 ", in order to according to controlling signal En1, image output data VD1 optionally " or screen regulation and control video data OSDD.For example, selected cell 221 can be multiplexer or switch, but the present invention is not limited to this type of selected cell.
Brightness contrast control module 222 is in order to the brightness and the contrast of control display panel, and gammate 223 is in order to the nonlinear characteristic of adjustment display panel, and line counter-rotating control module 224 is in order to the anti-phase driving of line of control display panel.The image data VD1 of digital-to-analog converting unit 225 in order to selected cell 221 is exported " or screen regulation and control video data OSDD convert the corresponding simulating signal to, in order to drive pel array 24.
In addition, the screen regulation and control show in integrated circuit 12 also has storage element, in order to deposit comparison list (as shown in Figure 2).The screen regulation and control show that integrated circuit 12 can be according to external control signal EC and this table of comparisons, the gray-scale value of adjustment screen regulation and control video data OSDD.For example, when the input of screen regulation and control video data, if external control signal EC is 00, the screen regulation and control show that 12 multiplying powers that screen can be regulated and control video data OSDD of integrated circuit are set at 0.25; If external control signal EC is 01 o'clock, the screen regulation and control show that 12 multiplying powers that screen can be regulated and control video data OSDD of integrated circuit are set at 0.50; If external control signal EC is 10 o'clock, the screen regulation and control show that 12 multiplying powers that screen can be regulated and control video data OSDD of integrated circuit are set at 0.75; If external control signal EC is 11 o'clock, the screen regulation and control show that 12 multiplying powers that screen can be regulated and control video data OSDD of integrated circuit are set at 1.00.When screen regulation and control video data is not imported, then no matter external control signal EC why, the screen regulation and control show that integrated circuit 12 all can regulate and control screen the multiplying power of video data OSDD and be set at 0.00.In other words, screen regulation and control video data OSDD can adjust different gray-scale values by external control signal EC.
Figure 1B shows another embodiment of display system of the present invention.As shown in the figure, display system 100B comprises printed circuit board (PCB) 10B and display panel 20B.
Printed circuit board (PCB) 10A comprises that the screen regulation and control show (on screen display; OSD) integrated circuit 12 and Digital System Processor (digital signal processor; DSP) 14.Digital System Processor 14 is in order to produce image data VD2 and horizontal synchronization signal Hsync and vertical synchronizing signal Vsync, and the screen regulation and control show integrated circuit 12 according to sync signal Vsync, Hsync, produce screen regulation and control video data OSDD and controlling signal En1.
Display panel 20B couples printed circuit board (PCB) 10B, and comprises driving circuit 22 and pel array 24.For example, display panel 20A can be display panels, Organic Light Emitting Diode (OLED) display panel or plasma display, but the present invention is not limited to this type of display panel.Driving circuit 22 comprises selected cell 221, brightness contrast control module 222, gammate 223, line counter-rotating control module 224, digital-to-analog converting unit 225.For example, driving circuit 22 can be data driver, and pel array 24 comprises a plurality of pixels (not icon) that are arranged in matrix form, and by from the driving of the analog signal of digital-analog convertor 225 and produce image.
Selected cell 221 receives from screen regulation and control and shows the image data OSDD of integrated circuit 12 and image data VD2 from Digital System Processor 14, in order to according to controlling signal En1, and image output data VD2 or screen regulation and control video data OSDD optionally.For example, selected cell 221 can be multiplexer or switch, but the present invention is not limited to this type of selected cell.
Brightness contrast control module 222 is in order to the brightness and the contrast of control display panel, and gammate 223 is in order to the nonlinear characteristic of adjustment display panel, and line counter-rotating control module 224 is in order to the anti-phase driving of line of control display panel.
Digital-to-analog converting unit 225 converts the corresponding simulating signal in order to image data VD2 or the screen regulation and control video data OSDD that selected cell 221 is exported, in order to drive pel array 24.
Similarly, the screen regulation and control show in integrated circuit 12 ashes has storage element, in order to deposit comparison list (as shown in Figure 2).The screen regulation and control show that integrated circuit 12 can be according to external control signal EC and this table of comparisons, the gray-scale value of adjustment screen regulation and control video data OSDD.For example, when the input of screen regulation and control video data, if external control signal EC is 00, the screen regulation and control show that 12 multiplying powers that screen can be regulated and control video data OSDD of integrated circuit are set at 0.25; If external control signal EC is 01 o'clock, the screen regulation and control show that 12 multiplying powers that screen can be regulated and control video data OSDD of integrated circuit are set at 0.50; If external control signal EC is 10 o'clock, the screen regulation and control show that 12 multiplying powers that screen can be regulated and control video data OSDD of integrated circuit are set at 0.75; If external control signal EC is 11 o'clock, the screen regulation and control show that 12 multiplying powers that screen can be regulated and control video data OSDD of integrated circuit are set at 1.00.When screen regulation and control video data is not imported, then no matter external control signal EC why, the screen regulation and control show that integrated circuit 12 all can regulate and control screen the multiplying power of video data OSDD and be set at 0.00.In other words, screen regulation and control video data OSDD can adjust different gray-scale values by external control signal EC.
In addition, be integrated on the display panel in order to the selecting arrangement that switches signal in the present invention, therefore can simplify the complexity of external printed circuit board, and reduce cost.
Fig. 3 is for using the synoptic diagram of an electronic installation of signal driving circuit shown in Figure 1A, Figure 1B.As shown in the figure, electronic installation 300 comprises shell 310, display system 100A/100B and power system 320.Power system 320 supplies power to display system 100A/100B, makes display system produce image.Display system 100A/100B can be liquid crystal display systems, Organic Light Emitting Diode (OLED) display system or plasma display system, and electronic installation 300 can be mobile computer, mobile phone, flat computer, display or PDA(Personal Digital Assistant).
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; those skilled in the art can do some changes and retouching under the premise without departing from the spirit and scope of the present invention, so protection scope of the present invention is as the criterion with claim of the present invention.
Claims (22)
1. a driving circuit is integrated on the display panel, and this driving circuit comprises:
One selected cell receives an image data and screen regulation and control video data, in order to according to a controlling signal, optionally exports this image data or exports this screen regulation and control video data; And
One digital-to-analog converting unit is in order to convert this image data or this screen regulation and control video data to an analog signal, in order to drive a pel array.
2. driving circuit as claimed in claim 1, other comprises an interpretation unit, in order to according to image input data, separates and translates this image data and a horizontal synchronization signal and a vertical synchronizing signal.
3. driving circuit as claimed in claim 2, wherein these image input data are the image data that meets the CCIR656 form.
4. driving circuit as claimed in claim 1, wherein regulation and control show integrated circuit from the screen on the external printed circuit board for this screen regulation and control video data and this controlling signal.
5. driving circuit as claimed in claim 1, wherein this image data is from the Digital System Processor on the external printed circuit board.
6. driving circuit as claimed in claim 5, wherein regulation and control show integrated circuit from the screen on this external printed circuit board for this screen regulation and control video data and this controlling signal.
7. driving circuit as claimed in claim 4, wherein these screen regulation and control show integrated circuit according to an external control signal, adjust the gray-scale value of this screen regulation and control video data.
8. driving circuit as claimed in claim 1, wherein this selected cell is a multiplexer or a switch.
9. driver module comprises:
One printed circuit board (PCB) comprises that screen regulation and control show integrated circuit, in order to according to a horizontal synchronization signal and a vertical synchronizing signal, produces a screen regulation and control video data and a controlling signal; And
One drive circuit is integrated on the display panel, couples a pel array and this printed circuit board (PCB), and this driving circuit comprises:
One selected cell receives an image data and this screen regulation and control video data, in order to according to this controlling signal, optionally exports this image data or exports this screen regulation and control video data; And
One digital-to-analog converting unit is in order to convert this image data or this screen regulation and control video data to an analog signal, in order to drive this pel array.
10. driver module as claimed in claim 9, wherein this driving circuit also comprises an interpretation unit, in order to according to image input data, separates and translates this image data and this horizontal synchronization signal and this vertical synchronizing signal.
11. driver module as claimed in claim 10, wherein these image input data are the image data that meets the CCIR656 form.
12. driver module as claimed in claim 9, wherein this printed circuit board (PCB) also comprises a Digital System Processor, in order to produce this image data and this sync signal.
13. driver module as claimed in claim 9, wherein these screen regulation and control show integrated circuit according to an external control signal, adjust the gray-scale value of this screen regulation and control video data.
14. driving circuit as claimed in claim 9, wherein this selected cell is a multiplexer or a switch.
15. a display system comprises:
One printed circuit board (PCB) comprises that screen regulation and control show integrated circuit, in order to according to a horizontal synchronization signal and a vertical synchronizing signal, produces a screen regulation and control video data and a controlling signal; And
One display panel couples this printed circuit board (PCB), comprises an one drive circuit and a pel array, and wherein this driving circuit comprises:
One selected cell receives an image data and this screen regulation and control video data, in order to according to this controlling signal, optionally exports this image data or exports this screen regulation and control video data; And
One digital-to-analog converting unit is in order to convert this image data or this screen regulation and control video data to an analog signal, in order to drive this pel array.
16. display system as claimed in claim 15, wherein this driving circuit also comprises an interpretation unit, in order to according to image input data, separates and translates this image data and this horizontal synchronization signal and this vertical synchronizing signal.
17. display system as claimed in claim 16, wherein these image input data are the image data that meets the CCIR656 form.
18. display system as claimed in claim 15, wherein this printed circuit board (PCB) also comprises a Digital System Processor, in order to produce this image data and this horizontal synchronization signal and this vertical synchronizing signal.
19. display system as claimed in claim 15, wherein these screen regulation and control show integrated circuit according to an external control signal, adjust the gray-scale value of this screen regulation and control video data.
20. display system as claimed in claim 15, wherein this selected cell is a multiplexer or a switch.
21. an electronic installation comprises:
One display system as claimed in claim 15; And
One power supply unit is in order to supply power to this display system, with show image.
22. electronic installation as claimed in claim 21, wherein this display panel is a display panels, a plasma display panel or an organic electroluminescence display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510107045XA CN100399408C (en) | 2005-09-27 | 2005-09-27 | Driver and related driving module, display system and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510107045XA CN100399408C (en) | 2005-09-27 | 2005-09-27 | Driver and related driving module, display system and electronic device |
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| Publication Number | Publication Date |
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| CN1744192A CN1744192A (en) | 2006-03-08 |
| CN100399408C true CN100399408C (en) | 2008-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510107045XA Active CN100399408C (en) | 2005-09-27 | 2005-09-27 | Driver and related driving module, display system and electronic device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5949957A (en) * | 1996-03-05 | 1999-09-07 | Sony Corporation | Video camera having storage medium-equipped recorder-reproducer and control method thereof |
| CN1261241A (en) * | 1998-12-19 | 2000-07-26 | 三星电子株式会社 | Portable TV telephone and method for controlling its operation |
| CN1284813A (en) * | 1999-08-17 | 2001-02-21 | 深圳市赛格集团有限公司 | Multifunctional character superposing display circuit in digital video system |
| CN1336072A (en) * | 1999-06-30 | 2002-02-13 | 皇家菲利浦电子有限公司 | Video processing |
-
2005
- 2005-09-27 CN CNB200510107045XA patent/CN100399408C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5949957A (en) * | 1996-03-05 | 1999-09-07 | Sony Corporation | Video camera having storage medium-equipped recorder-reproducer and control method thereof |
| CN1261241A (en) * | 1998-12-19 | 2000-07-26 | 三星电子株式会社 | Portable TV telephone and method for controlling its operation |
| CN1336072A (en) * | 1999-06-30 | 2002-02-13 | 皇家菲利浦电子有限公司 | Video processing |
| CN1284813A (en) * | 1999-08-17 | 2001-02-21 | 深圳市赛格集团有限公司 | Multifunctional character superposing display circuit in digital video system |
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| Publication number | Publication date |
|---|---|
| CN1744192A (en) | 2006-03-08 |
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