CN1655214A - Mobile communication terminal display drive device and method - Google Patents
Mobile communication terminal display drive device and method Download PDFInfo
- Publication number
- CN1655214A CN1655214A CNA2004100781996A CN200410078199A CN1655214A CN 1655214 A CN1655214 A CN 1655214A CN A2004100781996 A CNA2004100781996 A CN A2004100781996A CN 200410078199 A CN200410078199 A CN 200410078199A CN 1655214 A CN1655214 A CN 1655214A
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- frame
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- pixel data
- pixel
- mobile communication
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/06—Control, e.g. of temperature, of power
- H05B6/062—Control, e.g. of temperature, of power for cooking plates or the like
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
- H05B6/12—Cooking devices
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Controls And Circuits For Display Device (AREA)
Abstract
The invention relates to a mobile communication terminal display drive device and method. The mobile communication terminal display drive device includes: Comparator for comparing the pixel data of the frame to be displayed with the pixel data of the last frame which are stored in memory, and then outputting the comparison result data; primary controller for outputting the pixel data of the frame to be displayed which is different from the pixel data of the last frame according to the comparison result data output by the comparator; Display controller, which has a buffer storing data of one frame, for receiving the pixel data output by the primary controller, wherein the received pixel data is updated in the frame data stored in the buffer, and the updated frame data is output to display portion. The invention can accelerate data display speed, reduce load for data bus, and improve the performance for peripheral apparatus sharing the data bus.
Description
Technical field
The present invention relates to the display drive apparatus and the method thereof of mobile communication terminal, particularly relate to a kind of when showing recreation or activity video, only transmit data different between the frame, thereby reduce the load of data bus, improve the display drive apparatus and the method thereof of the mobile communication terminal of data presentation speed.
Background technology
Fig. 1 is the block diagram of the display drive apparatus of mobile communication terminal in the prior art.As shown in the figure, it is made of following several sections: display part (for example LCD) 50, in order to show from both given data of outside input; Volatile storage 20 is in order to storing image data; Storer 30 is in order to the frame data of interim storage by the rgb format of the view data conversion of storage in the described volatile storage 20; Display control unit 40, its inside has impact damper, and the frame data from the outside input are outputed to described display part 50; Master control part 10, it is converted to the view data of described volatile storage 20 storages the frame data of rgb format and is stored in described storer 30, then the frame data of the rgb format of storage is outputed to described display control unit 40.
Below with reference to Fig. 2, the action of the display drive apparatus that has this formation in the prior art is described.
When the user carries out the activity video playing function for the activity video of watching storage in the volatile storage 20, master control part 10 receives the input of the view data (for example data of mpeg format) of storage in the volatile storage 20 by data bus, the view data of input is converted to frame (frame) data of display part 50 displayable rgb formats, be stored in storer 30 as shown in Figure 2, and with it.Certainly, described each frame is made of the corresponding data of number (for example M) with the display part pixel.
All pixel datas of described each frame (are made of 144 * 177 pixels such as a picture, a color of pixel is made of 16bit, frame transmits data then for being about 50K byte (144 * 177 * 16 bit)) output to display control unit 40 by master control part 10, display control unit 40 is stored in impact damper in order to it is outputed to display part 50 with Frame.
The Frame of storing in the described impact damper outputs to display part 50 by the control of display control unit 40.Above-mentioned steps is implemented at all Frames (frame 1, frame 2, frame 3...) of storage in the storer 30, and as shown in Figure 2, Frame is shown in display part 50 successively.
But, along with the terminal Presentation Function is realized high image quality gradually, data conveying capacity between storer and the display part also further increases, this big data conveying capacity has increased very big burden to data bus, not only increased and shared the burden of other device of this data bus, but also caused data presentation speed to descend.
In the above-mentioned display part in the prior art, when changing picture at every turn, all data that will the data presented frame all will transmit, and therefore there are the following problems, promptly, in the time will realizing high image quality, the storer of store frames of data and the data conveying capacity between the display part further increase, and have increased very big burden to data bus thus, and, not only increased and shared the burden of other device of this data bus, but also caused the view data display speed to descend.
Summary of the invention
In view of as above problem, the object of the present invention is to provide a kind of display drive apparatus and method thereof of mobile communication terminal, this device has a comparing section, in order to will the data presented frame and the Frame of picture before this with what store in the storer, promptly going up a Frame compares, output end value data relatively, comparison by described comparing section, only transmit will the data presented frame in the pixel data of the different value of picture data frame before this, that stores in the update buffer will the data presented frame, thereby can improve data presentation speed, reduce the load of data bus, can improve the performance of the peripherals of sharing this data bus.
For realizing as above purpose, the feature of the display drive apparatus of mobile communication terminal of the present invention is to comprise following several sections: comparing section, the pixel data of the N frame of storing in its more described storer that will be shown in described display part and the pixel data of N-1 frame are exported each pixel comparative result Value Data; Master control part, it only exports the pixel data that is different from the N-1 frame data in the described N frame data that will show according to the comparison result value about each pixel of described comparing section output; Display control unit, it has the impact damper of storing frame data, receive the pixel data of described master control part output, in the N-1 frame data of described buffer stores, upgrade the pixel data that receives, N-1 frame after being updated becomes the N frame, and described data updated frame is outputed to described display part.
For realizing as above purpose, the feature of the display drive method of mobile communication terminal of the present invention is to comprise following several steps: step 1, the pixel data of the N frame that will show of more described memory stores and the previous frame that has shown, the i.e. pixel data of N-1 frame; Step 2, according to comparative result in described step 1, the pixel data that from the pixel data of the described N frame that will show of described impact damper reception, is different from the N-1 frame that has shown, upgrade the pixel data that receives in the pixel data of the N-1 frame of having stored, the N-1 frame after being updated becomes the N frame; Step 3 shows the pixel data of the N frame that upgrades in the described impact damper.
The display drive apparatus of mobile communication terminal of the present invention has comparing section, comparing section compares the frame data that will show of memory stores and the frame data of a last picture, output is about end value data relatively, comparison by described comparing section, only transmit the pixel data that is different from a picture data frame in the frame data that will show, update buffer store with the data presented frame.Therefore, the present invention can improve the display speed of data, reduces the data bus load, improves the performance of the peripherals of sharing this data bus.
Description of drawings
Fig. 1 is that the display drive apparatus of mobile communication terminal of the prior art constitutes block diagram;
Fig. 2 is that the display packing of the display drive apparatus of mobile communication terminal of the prior art is implemented synoptic diagram;
Fig. 3 is the formation block diagram of the display drive apparatus of mobile communication terminal of the present invention;
Fig. 4 is that of step display of the present invention implements illustration.
The symbol description * * of * accompanying drawing major part
20: volatile storage 30: storer
50: display part 60: master control part
70: comparing section 80: display control unit
Embodiment
With reference to the accompanying drawings, the display drive apparatus of mobile communication terminal of the present invention and the best of method thereof are described
Embodiment.
Fig. 3 is that an embodiment of the display drive apparatus of mobile communication terminal of the present invention constitutes block diagram.As shown in the figure, it comprises following several sections: display part (for example LCD) 50, in order to show from both given data of outside input; Volatile storage 20 is in order to storing image data; Storer 30 is after the view data of storage is converted into the Frame of rgb format in described volatile storage 20, with its interim storage; Display control unit 80, its inside has impact damper, in order to upgrade the respective pixel data of importing from the outside and to output to described display part 50; Comparing section 70 compares in order to the Frame that will output to described display part 50 and the Frame of a last picture, and exports the comparison result value of each pixel; Master control part 60, it is according to the comparison result value about each pixel from 70 outputs of described comparing section, only in the Frame of storing in the described storer 30 with a last picture data frame in different pixel data output to described display control unit 80.
Described comparing section 70 can be by constituting by export 1 or 0 simple logic circuit according to the comparative result of pixel data between the frame, relatively need the N frame that shows and pixel data as the N-1 frame of a last display frame, for the mutually different pixel output 1 of data, for the identical pixel output 0 of data.
In the impact damper of described display control unit 80, storing whole pixel datas of the two field picture that display part 50 shown.
Below with reference to Fig. 4, the action of the present invention that as above constitutes is described.
When the user moved the activity video function for the activity video (or recreation) of storage in the viewing terminal volatile storage 20, master control part 60 was converted to all images Frames about described activity video the Frame of rgb format and is stored in storer 30.
Master control part 60 outputs to display control unit 80 to the pixel data of first frame of storage in the described storer 30 by data bus, and the impact damper that has in the display control unit 80 outputs to display part 50 with it and shows behind the pixel data of having stored described first frame.
After described first frame showed, comparing section 70 compared the pixel data of first frame and the pixel data of second frame, and output 0 does not export 1 simultaneously when two pixel datas are identical.
Master control part 60 is received 0 or 1 comparison result value of described comparing section 70 outputs, and the pixel data that only is different from first frame in the pixel data of second frame that storer 30 is stored outputs to display control unit 80.For example, as shown in Figure 4, the pixel data of first frame that has shown is to have only the pixel data of the 8th, 9,17,18 pixel datas and first frame different with the result of the pixel data comparison of second frame that will show, so, master control part 60 only outputs to display control unit 80 to the 8th, 9,17,18 pixel datas by data bus in 25 pixel datas of second frame.
After display control unit 80 receives the 8th, 9,17,18 pixel datas of described master control part 60 outputs, in the first frame pixel data of buffer stores, only upgrade the 8th, 9,17,18 pixel datas and store.
In addition, display control unit 80 promptly, outputs to the data of described buffer stores display part 50 to the pixel data about second frame and shows.
Implement this step at all frames, as mentioned above, because in the pixel data of the frame that will show, the pixel data of the frame that shows before only output is different from, so compared with prior art, not only the data conveying capacity reduces, and the load that data bus bears also reduces, thus display frame quickly.
In addition, after the data bus load reduces, can also improve the performance of the peripherals of sharing this data bus.
Claims (4)
1. the display drive apparatus of a mobile communication terminal is characterized in that comprising:
Comparing section, it compares the N frame pixel data that will be shown in display part stored in the described storer and the pixel data of N-1 frame, and output is about each pixel end value data relatively;
Master control part, it only exports the pixel data that is different from the N-1 frame data in the described N frame data that will show according to the comparison result value about each pixel of described comparing section output;
Display control unit, it has the impact damper of storing frame data, receives the pixel data of described master control part output, upgrades the pixel data that receives in the N-1 frame data of described buffer stores, become the N frame data, the N frame data of described renewal are outputed to described display part.
2. the display drive apparatus of mobile communication terminal according to claim 1 is characterized in that described comparing section is made of logical circuit, and output 1 does not export 0 simultaneously when two pixel datas relatively are identical.
3. the display drive method of a mobile communication terminal is characterized in that comprising the steps:
Step 1, the pixel data of the pixel data of the N frame that will show of more described memory stores and the N-1 frame that had shown;
Step 2, according to the result who in described step 1, compares, the pixel data that from the pixel data of the described N frame that will show of described impact damper reception, is different from the N-1 frame that had shown, upgrade the pixel data that receives in the pixel data of the N-1 frame of having stored, the N-1 frame after being updated becomes the N frame;
Step 3 shows the pixel data of data updated frame in the described impact damper.
4. the display drive method of mobile communication terminal according to claim 3, the whole pixel datas that it is characterized in that first frame of described memory stores are stored in the described impact damper and are shown.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040009069A KR100556916B1 (en) | 2004-02-11 | 2004-02-11 | Method and apparatus for driving display of mobile communication terminal |
| KR10-2004-0009069 | 2004-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1655214A true CN1655214A (en) | 2005-08-17 |
Family
ID=34909939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2004100781996A Pending CN1655214A (en) | 2004-02-11 | 2004-09-17 | Mobile communication terminal display drive device and method |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100556916B1 (en) |
| CN (1) | CN1655214A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217445A (en) * | 2013-05-31 | 2014-12-17 | 精英电脑(苏州工业园区)有限公司 | A method for distortionless coding and decoding of desktop images of computers |
| CN105761695A (en) * | 2016-05-13 | 2016-07-13 | 京东方科技集团股份有限公司 | Driving circuit, driving method thereof and display device |
| CN107656108A (en) * | 2017-11-09 | 2018-02-02 | 光科技股份有限公司 | Suitable for the fast appearing methods of RCM and device of electric-power metering |
| CN112214188A (en) * | 2020-09-11 | 2021-01-12 | 西安万像电子科技有限公司 | Image processing method and device, storage medium and processor |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3073479A1 (en) * | 2015-03-27 | 2016-09-28 | BAE Systems PLC | Digital display |
| KR102627279B1 (en) * | 2016-07-25 | 2024-01-22 | 엘지디스플레이 주식회사 | Display device and its driving method |
-
2004
- 2004-02-11 KR KR1020040009069A patent/KR100556916B1/en not_active IP Right Cessation
- 2004-09-17 CN CNA2004100781996A patent/CN1655214A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104217445A (en) * | 2013-05-31 | 2014-12-17 | 精英电脑(苏州工业园区)有限公司 | A method for distortionless coding and decoding of desktop images of computers |
| CN104217445B (en) * | 2013-05-31 | 2017-05-17 | 精英电脑(苏州工业园区)有限公司 | A method for distortionless coding and decoding of desktop images of computers |
| CN105761695A (en) * | 2016-05-13 | 2016-07-13 | 京东方科技集团股份有限公司 | Driving circuit, driving method thereof and display device |
| US10255866B2 (en) | 2016-05-13 | 2019-04-09 | Boe Technology Group Co., Ltd. | Driving circuit, driving method thereof and display device |
| CN107656108A (en) * | 2017-11-09 | 2018-02-02 | 光科技股份有限公司 | Suitable for the fast appearing methods of RCM and device of electric-power metering |
| CN112214188A (en) * | 2020-09-11 | 2021-01-12 | 西安万像电子科技有限公司 | Image processing method and device, storage medium and processor |
| CN112214188B (en) * | 2020-09-11 | 2024-06-07 | 西安万像电子科技有限公司 | Image processing method, device, storage medium and processor |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100556916B1 (en) | 2006-03-03 |
| KR20050080900A (en) | 2005-08-18 |
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