CN108305593A - Data compression system and its electricity saving method for liquid crystal display - Google Patents
Data compression system and its electricity saving method for liquid crystal display Download PDFInfo
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Abstract
The invention discloses a kind of data compression systems and its electricity saving method being used for a liquid crystal display.The data compression system includes a master device unit, one drive circuit.The master device unit is used for exporting an image data according to an operation mode of the liquid crystal display with one first data format or one second data format.The driving circuit includes a bypass path, a compression unit, a storage element and a decompression unit.The bypass path is used for transmitting the image data according to the operation mode.The compression unit is used for executing a condensing routine to the image data according to the operation mode, to generate a compressed data.The decompression unit is used for executing a gunzip to the compressed data according to the operation mode, to restore the image data.
Description
The applying date of original application case is September in 2013 5, and the application number of original application case is 201310400672.7, and former
The denomination of invention of application case is " data compression system and its electricity saving method that are used for liquid crystal display ".
Technical field
The present invention relates to a kind of data compression systems for liquid crystal display more particularly to one kind can be according to an operation mould
Formula selects the data compression system and its correlative electricity-saving method of a data transfer path.
Background technology
Liquid crystal display (Liquid Crystal Display；LCD) have frivolous external form, power saving and Low emissivity etc. excellent
Point, therefore it has been widely used in computer screen, mobile phone, personal digital assistant (PDA), flat-surface television, Yi Jiqi
On the electronic products such as its communication/amusement equipment.The operation principle system of liquid crystal display utilizes the voltage difference for changing liquid crystal layer both ends
Change the ordered state of the liquid crystal molecule in liquid crystal layer, change the translucency of liquid crystal layer according to this, then backlight module is coordinated to be carried
The light source of confession is to show image.
Liquid crystal display includes a driving chip.After data reach driving chip from master device end, a compression electricity can be passed through
Road is by data compression and is stored in a compression memory.Driving chip recycles decompression circuit to transfer data to display data
Block.When driving chip is operated in some special patterns, the information of full gamut is not needed.It therefore will be panchromatic by compressor circuit
The compressed action of the information data in domain can cause unnecessary power consumption.
Invention content
Therefore, the main purpose of the present invention is to provide a kind of data compression systems for liquid crystal display, to save
The power consumption of the liquid crystal display.
The present invention provides a kind of data compression system being used for a liquid crystal display.The data compression system includes a master
Device unit, one drive circuit.The master device unit is used for the operation mode according to the liquid crystal display with one first data
Format or one second data format export an image data.The driving circuit includes a bypass path, a compression unit, a storage
Memory cell, a decompression unit and a display unit.The bypass path, for transmitting the image number according to the operation mode
According to.The compression unit is coupled to the master device unit, for receiving the image data according to the operation mode and to the image
Data execute a condensing routine, to generate a compressed data.The storage element is coupled to the compression unit, for storing the pressure
Contracting data and the image data.The decompression unit is coupled to the storage element, for receiving the pressure according to the operation mode
Contracting data and to the compressed data execute a gunzip, to restore the image data.The display unit, for showing this
Image data.
The present invention separately provides a kind of data compression system being used for a liquid crystal display.The data compression system includes one
Master device unit, one drive circuit.The master device unit, for exporting an image data, wherein the image data has one the
One data format.The driving circuit includes a bypass path, a compression unit, a storage element, a format conversion unit, one
Decompression unit and a display unit.The bypass path, for being used for transmitting the image data according to an operation mode.The pressure
Contracting unit is coupled to the master device unit, for receiving the image data according to the operation mode and being held to the image data
One condensing routine of row, to generate a compressed data.The storage element is coupled to the compression unit, for storing the compressed data
And the image data.The format conversion unit is coupled to the storage element, for executing a format conversion program, by the shadow
As data conversion is at first data format or one second data format.The decompression unit is coupled to the storage element, is used for
The compressed data is received according to the operation mode and a gunzip is executed to the compressed data, to restore the image number
According to.The display unit, for showing the image data.
The present invention separately provides a kind of electricity saving method of a data compression system.The electricity saving method includes according to an operation mould
Formula exports an image data with one first data format or one second data format；According to the operation mode, judge whether to this
Image data executes a condensing routine；And show the image data.
The present invention separately provides a kind of electricity saving method of a data compression system.The electricity saving method includes one image number of output
According to wherein the image data has one first data format；According to an operation mode, judge whether to execute one to the image data
Condensing routine；According to the operation mode, a format conversion program is executed, which is converted into first data format
Or one second data format；And show the image data.
Description of the drawings
Fig. 1 is the schematic diagram of one data compression system 10 of the embodiment of the present invention.
Fig. 2 (a), Fig. 2 (b) are the schematic diagram of data format of the embodiment of the present invention.
Fig. 2 (c) is the schematic diagram of one compressed data of the embodiment of the present invention.
Fig. 3 and Fig. 4 is the image data sequence diagram of difference output end of the embodiment of the present invention.
Fig. 5 is the schematic diagram of one data compression system of another embodiment of the present invention.
Fig. 6 and Fig. 7 is the image data sequence diagram of difference output end of the embodiment of the present invention.
Fig. 8 is the schematic diagram of one flow of the embodiment of the present invention.
Fig. 9 is the schematic diagram of one flow of the embodiment of the present invention.
Wherein, the reference numerals are as follows：
10,50 data compression system
100,500 master device unit
120,520 driving circuit
121,521 image data unit
122,522 compression unit
123,126,523,527 switch unit
124,524 storage element
125,526 decompression unit
127,528 display unit
525 format conversion units
80,90 flow
800,802,804,806,808,810,812,814, step
816、900、902、904、906、908、910、912、
914、916
L1, L3 bypass path
L2, L4 complete datapath
Cmprs_D compressed datas
Frmt1, frmt2 data format
Img_D image datas
Specific implementation mode
Referring to FIG. 1, Fig. 1 is the schematic diagram of one data compression system 10 of the embodiment of the present invention.Data compression system 10 can
For in a liquid crystal display.Data compression system 10 includes a master device unit 100 and one drive circuit 120.Main dress
Unit 100 is set to be used for according to an operation mode of liquid crystal display with a data format frmt1 or a data format frmt2 outputs
One image data Img_D.Driving circuit 120, preferably, can be realized by a driving chip (Drive IC).Driving circuit 120
Include an image data unit 121, a compression unit 122, switch unit 123 and 126, one storage element 124, one decompression
Contracting unit 125, a display unit 127, a bypass path L1 and a complete datapath L2.Switch unit 123 and 126 is used
To switch bypass path L1 or complete datapath L2.Compression unit 122, for receiving the image data according to operation mode
Img_D and a condensing routine is executed to image data Img_D, to generate a compressed data Cmprs_D.Storage element 124, coupling
It is connected to compression unit 122 and master device unit 100, is used for stored compressed data Cmprs_D and image data Img_D.Compared with
Goodly, storage element 124 can be a static RAM (Static Random AccessMemory, SRAM).Solution
Compression unit 125 is coupled to storage element 124, is used for according to operation mode receiving compressed data Cmprs_D and to compressing number
A gunzip is executed according to Cmprs_D, to restore image data Img_D.Display unit 127 is used for image data displaying Img_
D。
When operation mode is special pattern, the frmt1 image outputs data Img_D in data format of master device unit 100,
And the image data Img_D of data format frmt1 is transmitted by bypass path L1.When operation mode is general modfel, main dress
The frmt2 image outputs data Img_D in data format of unit 100 is set, and data format is transmitted by complete datapath L2
The image data Img_D of frmt2.Preferably, image data of the image data of data format frmt1 than data format frmt2
With less digit.In addition, special pattern includes a reduction colour gamut image mode, a part of picture display mode and one
Raising frequency image mode.In special pattern, liquid crystal display does not need the information of full gamut, for example：It is drawn reducing colour gamut
In surface model, RGB three primary colors can be reduced from 24 to 3；In part picture display mode, when liquid crystal display from
It is other not show that picture be with single piece of information color when 480x800 full frames show that switching to the parts 100x100 picture shows
Substitution；In raising frequency image mode, 240x400 raising frequency pictures are switched to when liquid crystal display is shown from 480x800 full frames, only
Need the data of half that can equally show 480x800 full frames.Therefore, in special pattern, master device unit 100 can have
Compared with the data format frmt1 image output data Img_D of small data quantity, the data volume that need to be stored in storage element 124 is reduced, and
Condensing routine and gunzip need not be executed by bypass path L1 is sent to display unit 127.Thus, can keep away
Exempt from unnecessary electric quantity consumption.
Please refer to Fig.2 (a), Fig. 2 (b) and Fig. 2 (c).Fig. 2 (a) is the signal of data format of embodiment of the present invention frmt2
Figure；Fig. 2 (b) is the schematic diagram of data format of embodiment of the present invention frmt1；Fig. 2 (c) is compressed data of the embodiment of the present invention
The schematic diagram of Cmprs_D.In Fig. 2 (a), each pixel includes tri- sub-pixels of R, G, B, and each sub-pixel can use 8 positions
It indicates.Therefore, each pixel is 24 positions.In Fig. 2 (b), each pixel only respectively represents tri- sub- pictures of R, G, B with 3 positions
Element.It compares down, data format frmt1 has smaller data volume than data format frmt2.
The detailed mode of operation of data compression system 10 is described below.When operation mode is general modfel, master device list
100 frmt2 image outputs data Img_D in data format of member.The image data Img_D of data format frmt2 first passes through image
Data cell 121, and compression unit 122 is sent to by complete datapath L2.Compression unit 122 is to data format frmt2
Image data Img_D execute condensing routine, to generate compressed data Cmprs_D.The selection of switch unit 123 comes from partial data
The compressed data Cmprs_D of path L2, and compressed data Cmprs_D is stored in storage element 124.Then, decompression unit
125 receiving compressed data Cmprs_D, and gunzip is executed to compressed data Cmprs_D, with restoring data format frmt2
Image data Img_D.Switch unit 126 is by complete datapath L2, by the image data Img_D of data format frmt2
It is sent to display unit 127.Finally, the image data Img_D of 127 display data format frmt2 of display unit.Work as operation mode
Special pattern is switched to by general modfel, fmrt1 in data format in next picture frame of the master device unit 100 after switching
Retransmit an image data Prv_D1 transmitted.Wherein, it is general modfel that the image data Prv_D1 transmitted, which is operation mode,
When the image data that is transmitted, with data format fmrt2.When fmrt1 has been passed master device unit 100 in data format
When the image data Prv_D1 sent, display unit 127 shows a completely black picture, occurs to avoid picture abnormal conditions.Work as operation
When pattern is special pattern, the frmt1 image outputs data Img_D in data format of master device unit 100.Data format frmt1
Image data Img_D first pass through image data unit 121, and compression unit 122 is skipped over by bypass path L1, directly transmitted
To switch unit 123.Switch unit 123 selects the image data Img_D of the data format frmt1 from bypass path L1, and
The image data Img_D of data format frmt1 is stored in storage element 124.Then, switch unit 126 passes through bypass path
The image data Img_D of data format frmt1 is sent to display unit 127 by L1.Finally, 127 display data lattice of display unit
The image data Img_D of formula frmt1.When operation mode switches back into general modfel by special pattern, master device unit 100 is in switching
Fmrt2 retransmits an image data Prv_D2 transmitted in data format in next picture frame afterwards.Wherein, the image transmitted
The image data that data Prv_D2, which is operation mode, to be transmitted when being special pattern, with data format fmrt1.Work as master device
When the image data Prv_D2 that fmrt2 has been transmitted in data format of unit 100, display unit 127 shows a completely black picture,
Occur to avoid picture abnormal conditions.Mode of operation after operation mode returns to general modfel can refer to and aforementioned not exist in this
It repeats.Therefore, when operation mode is special pattern, data compression system 10 passes through bypass path L1 fmrt1 in data format
Transmission image data Img_D is skipped over to display unit 127 and is executed condensing routine and gunzip, is disappeared with saving electricity
Consumption.
In addition, please referring to Fig.3 and Fig. 4, Fig. 3 are the embodiment of the present invention when that operation mode is switched to by general modfel is special
When pattern, the image data sequence diagram of different output ends；Fig. 4 is the embodiment of the present invention when operation mode is switched by special pattern
When to general modfel, the image data sequence diagram of different output ends.In Fig. 3 and Fig. 4, horizontal axis is a time shaft.Wherein, horizontal
Each time interval on axis is the time of a picture frame.The detailed description of Fig. 3 and Fig. 4 is with reference to above-mentioned, in this not superfluous
It states.
Referring to FIG. 5, Fig. 5 is the schematic diagram of one data compression system 50 of another embodiment of the present invention.Data compression system
50 can be used in a liquid crystal display.The basic framework of data compression system 50 is similar with data compression system 10, therefore identical
The data of output end are indicated with identical label.Data compression system 50 includes a master device unit 500 and one drive circuit
520.Master device unit 500 is used for exporting an image data Img_D.Wherein, image data unit has a data format
fmrt2.Driving circuit 520, preferably, can be realized by a driving chip (Drive IC).Driving circuit 520 includes a shadow
As data cell 521, a compression unit 522, switch unit 523 and 527, one storage element 524, a format conversion unit
525, a decompression unit 526, a display unit 528, a bypass path L3 and a complete datapath L4.Switch unit
523 and 527 are used for switching bypass path L3 or complete datapath L4.Compression unit 522, for being received according to operation mode
Image data Img_D and condensing routine is executed to image data Img_D, to generate compressed data Cmprs_D.Storage element
524, it is coupled to compression unit 522 and master device unit 500, is used for stored compressed data Cmprs_D and image data
Img_D.Preferably, storage element 524 can be a static RAM (Static Random Access Memory,
SRAM).Format conversion unit 525 is coupled to storage element 524, for executing a format conversion program, by image data
Img_D is converted into data format frmt1 or data format frmt2.Decompression unit 526 is coupled to storage element 524, is used for root
Gunzip is executed according to operation mode receiving compressed data Cmprs_D and to compressed data Cmprs_D, to restore image number
According to Img_D.Display unit 528 is used for image data displaying Img_D.
When operation mode is special pattern, the image data Img_D of data format frmt2 is transmitted by bypass path
To storage element 524.Format conversion unit 525 reads the image data Img_D of the data format frmt2 of storage element 524, and
The image data Img_D of data format frmt2 is converted into after having compared with the data format frmt1 of small data quantity, storage is stored back to
Unit 524, and skip over and execute condensing routine and gunzip.Thus, can avoid unnecessary electric quantity consumption.
The detailed mode of operation of data compression system 50 is described below.When operation mode is general modfel, master device list
The image data Img_D of 500 output data format frmt2 of member.The image data Img_D of data format frmt2 first passes through image
Data cell 521, and compression unit 522 is sent to by complete datapath L4.Compression unit 522 is to data format frmt2
Image data Img_D execute condensing routine, to generate compressed data Cmprs_D.The selection of switch unit 523 comes from partial data
The compressed data Cmprs_D of path L4, and compressed data Cmprs_D is stored in storage element 524.Then, decompression unit
526 receiving compressed data Cmprs_D, and gunzip is executed to compressed data Cmprs_D, with restoring data format frmt2
Image data Img_D.Switch unit 527 is by complete datapath L4, by the image data Img_D of data format frmt2
It is sent to display unit 528.Finally, the image data Img_D of 528 display data format frmt2 of display unit.Work as operation mode
Special pattern is switched to by general modfel, the image data Img_D of 500 output data format frmt2 of master device unit to image
Data cell 521, and storage element 524 is sent to by bypass path L3.The next picture of format conversion unit 525 after handover
In the frame of face, the image data Img_D of data format frmt2 is read from storage element 524, and by image data Img_D by counting
Storage element 524 is restored to after being converted to data format frmt1 according to format frmt2.Turn when format conversion unit 525 executes format
When changing program, display unit 528 shows completely black picture, occurs to avoid picture abnormal conditions.When format conversion program is completed,
The image data Img_D of 528 display data format frmt1 of display unit.When operation mode switches back into general mould by special pattern
In the next picture frame of format conversion unit 525 after handover, the shadow of data format frmt1 is read from storage element 524 for formula
As data Img_D, and storage list is restored to after image data Img_D is converted to data format frmt2 by data format frmt1
Member 524.In the same manner, when format conversion unit 525 executes format conversion program, display unit 528 shows completely black picture, to keep away
Exempt from the generation of picture abnormal conditions.When format conversion program is completed, the image number of 528 display data format frmt2 of display unit
According to Img_D.Mode of operation after operation mode returns to general modfel can refer to and aforementioned not repeated in this.Therefore, work as operation
When pattern is special pattern, data compression system 50 transmits image data Img_D to display unit 528 by bypass path L3,
And skip over and execute condensing routine and gunzip, to save electric quantity consumption.It is noted that compared to data compression system
10, master device unit 500 does not need to execute the action retransmitted in data compression system 50, and Data Format Transform is by format
Performed by converting unit 525.
In addition, please refer to Fig. 6 and Fig. 7, Fig. 6 is the embodiment of the present invention when that operation mode is switched to by general modfel is special
When pattern, the image data sequence diagram of different output ends；Fig. 7 is the embodiment of the present invention when operation mode is switched by special pattern
When to general modfel, the image data sequence diagram of different output ends.In Fig. 6 and Fig. 7, horizontal axis is a time shaft.Wherein, horizontal
Each time interval on axis is the time of a picture frame.The detailed description of Fig. 6 and Fig. 7 is with reference to above-mentioned, in this not superfluous
It states.
About the mode of operation of data compression system 10, it can be summarized as a flow 80, such as Fig. 8 depicted.Flow 80 can be used for
In data compression system 10, it is used for power saving, it includes there are the following steps：
Step 800：Start.
Step 802：Judge operation mode, if operation mode is special pattern, executes step 804；If operation mode is one
As pattern, execute step 806.
Step 804：Fmrt1 image outputs data Img_D in data format executes step 808.
Step 806：Fmrt1 image outputs data Img_D in data format executes step 810.
Step 808：By the image data Img_D of bypass path L1 transmission data formats fmrt1, step 816 is executed.
Step 810：Pass through the image data Img_D of complete datapath L2 transmission data formats fmrt2.
Step 812：Execute condensing routine.
Step 814：Execute gunzip.
Step 816：Image data displaying Img_D.
According to flow 80, when operation mode is special pattern, data compression system 10 transmits number by bypass path L1
According to the image data Img_D of format fmrt1, compression and gunzip are skipped over, to save electrical source consumption.When operation mode is
When general modfel, data compression system 10 compresses the image data of data format fmrt2 by complete datapath L2
And gunzip.The detailed description of flow 80 can refer to aforementioned, not repeated in this.
About the mode of operation of data compression system 50, it can be summarized as a flow 90, such as the 9th figure depicted.Flow 90 can be used
In data compression system 50, it is used for power saving, it includes there are the following steps：
Step 900：Start.
Step 902：Image output data Img_D, wherein image data Img_D have data format frmt2.
Step 904：Judge operation mode, if operation mode is special pattern, executes step 906；If operation mode is one
As pattern, execute step 908.
Step 906：By the image data Img_D of bypass path L3 transmission data formats fmrt2, step 914 is executed.
Step 908：Pass through the image data Img_D of complete datapath L4 transmission data formats fmrt2.
Step 910：Execute condensing routine.
Step 912：Gunzip is executed, step 916 is executed.
Step 914：Execute format conversion program.
Step 916：Image data displaying Img_D.
According to flow 90, when operation mode is special pattern, data compression system 50 transmits number by bypass path L3
According to the image data Img_D of format fmrt2, compression and gunzip are skipped over, and execute format conversion program, by image number
Data format fmrt1 is converted to by data format fmrt2 according to Img_D.When operation mode is general modfel, data compression system
50 carry out compression and gunzip by complete datapath L4 to the image data of data format fmrt2.Flow 90
Detailed description can refer to aforementioned, not repeated in this.
In conclusion the embodiment of the present invention can be judged according to operation mode image data transmission path (bypass path or
Complete datapath).When operation mode is special pattern (reduction colour gamut image mode, a part of picture for being not required to full-color information
Display pattern and a raising frequency image mode) when, the embodiment of the present invention can transmit image number with the smaller data format of data volume
It is converted into the smaller data format of data volume according to or by image data, image data is transmitted by bypass path, to skip over compression
And gunzip, achieve the purpose that power saving.
The foregoing is merely presently preferred embodiments of the present invention, all equivalent changes done according to the claims in the present invention with repair
Decorations should all belong to the covering scope of the present invention.
Claims (37)
1. a kind of driving circuit, is used for the data compression system of liquid crystal display, which includes a master device list
Member is used for exporting an image according to an operation mode of the liquid crystal display with one first data format or one second data format
Data, the driving circuit include：
One bypass path is used for transmitting the image data according to the operation mode；
One compression unit is coupled to the master device unit, be used for according to the operation mode receive the image data and
One condensing routine is executed to the image data, to generate a compressed data；
One storage element is coupled to the compression unit, for storing the compressed data and the image data；
One decompression unit is coupled to the storage element, be used for according to the operation mode receive the compressed data and
One gunzip is executed to the compressed data, to restore the image data；And
One display unit, for keeping the image data shown；
Wherein, the image data of first data format than second data format the image data have compared with
Few digit.
2. driving circuit as described in claim 1, it is characterised in that the master device unit is one special in the operation mode
When different pattern with first data format export the image data and when the operation mode is a general modfel with
Second data format exports the image data, wherein the special pattern is the pattern for the information for not needing full gamut.
3. driving circuit as claimed in claim 2, it is characterised in that the special pattern includes a reduction colour gamut picture mould
Formula, a part of picture display mode and a raising frequency image mode.
4. driving circuit as claimed in claim 2, it is characterised in that the master device unit is also used in the operation mode
After switching to the special pattern by the general modfel, an image data transmitted is retransmitted with first data format.
5. driving circuit as claimed in claim 4, it is characterised in that the display unit is also used in the master device unit
When retransmitting the image data transmitted with first data format, one completely black picture of display.
6. driving circuit as claimed in claim 2, it is characterised in that the master device unit is also used in the operation mode
After switching to the general modfel by the special pattern, an image data transmitted is retransmitted with second data format.
7. driving circuit as claimed in claim 6, it is characterised in that the display unit is also used in the master device unit
When retransmitting the image data transmitted with second data format, one completely black picture of display.
8. driving circuit as claimed in claim 2, it is characterised in that the bypass path is the spy in the operation mode
When different pattern, the image data of first data format is transmitted.
9. driving circuit as claimed in claim 2, it is characterised in that the compression unit is described one in the operation mode
As pattern when receive the image data of second data format, and the image number to second data format
According to the condensing routine is executed, to generate the compressed data.
10. driving circuit as claimed in claim 2, it is characterised in that the decompression unit is described in the operation mode
It receives the compressed data when general modfel, and the gunzip is executed to the compressed data, to restore described the
The image data of two data formats.
11. a kind of driving circuit, is used for the data compression system of liquid crystal display, which includes a master device list
Member, for exporting an image data, wherein the image data has one first data format, which includes：
One bypass path is used for transmitting the image data according to an operation mode；
One compression unit is coupled to the master device unit, be used for according to the operation mode receive the image data and
One condensing routine is executed to the image data, to generate a compressed data；
One storage element is coupled to the compression unit, for storing the compressed data and the image data；
One format conversion unit is coupled to the storage element, for executing a format conversion program, by the image data
It is converted into first data format or one second data format；
One decompression unit is coupled to the storage element, be used for according to the operation mode receive the compressed data and
One gunzip is executed to the compressed data, to restore the image data；And
One display unit, for keeping the image data shown；
Wherein, the image data of second data format than first data format the image data have compared with
Few digit.
12. driving circuit as claimed in claim 11, it is characterised in that the format conversion unit in the operation mode by
After one general pattern switching a to special pattern, the image data is counted by first Data Format Transform for described second
According to format, and after the operation mode switches to the general modfel by the special pattern, by the image data by
Second Data Format Transform is first data format, wherein the special pattern is the information for not needing full gamut
Pattern.
13. driving circuit as claimed in claim 12, it is characterised in that the special pattern includes a reduction colour gamut picture
Pattern, a part of picture display mode and a raising frequency image mode.
14. driving circuit as claimed in claim 12, it is characterised in that the bypass path is described in the operation mode
When special pattern, the image data is transmitted.
15. driving circuit as claimed in claim 12, it is characterised in that the compression unit is described in the operation mode
When general modfel, receives the image data and the condensing routine is executed to generate the compression number to the image data
According to.
16. driving circuit as claimed in claim 12, it is characterised in that the decompression unit is institute in the operation mode
When stating general modfel, receives the compressed data and the gunzip is executed to restore the shadow to the compressed data
As data.
17. driving circuit as claimed in claim 12, it is characterised in that the display unit is also used in the format conversion
When unit executes the format conversion program, a completely black picture is shown.
18. a kind of electricity saving method for driving circuit, the driving circuit is used for the data compression system of liquid crystal display, institute
Stating electricity saving method includes：
One image number is received from a master device unit with one first data format or one second data format according to an operation mode
According to, wherein the image data of first data format than the image data of second data format have compared with
Few digit；
According to the operation mode, judge whether to execute a condensing routine to the image data；And
Output is to show the image data.
19. electricity saving method as claimed in claim 18, it is characterised in that according to the operation mode with the first data lattice
Formula or second data format receive the image data from the master device unit and include：In the operation mode be one
With first data format reception image data and when the operation mode is a general modfel when special pattern
The image data is received with second data format, wherein the special pattern is the mould for the information for not needing full gamut
Formula.
20. electricity saving method as claimed in claim 19, it is characterised in that the special pattern includes a reduction colour gamut picture
Pattern, a part of picture display mode and a raising frequency image mode.
21. electricity saving method as claimed in claim 19, it is characterised in that judged whether to the shadow according to the operation mode
Include as data execute the condensing routine：When the operation mode is the special pattern, transmitted by a bypass path
The image data of first data format, to omit the condensing routine.
22. electricity saving method as claimed in claim 21 also includes that the image data of first data format is temporary
It is stored in a mnemon.
23. electricity saving method as claimed in claim 19 is also contained in the operation mode and is switched to by the general modfel
After the special pattern, an image data transmitted is retransmitted with first data format.
24. electricity saving method as claimed in claim 23 is also contained in have been transmitted described in first data format re-transmission
Image data when, show a completely black picture.
25. electricity saving method as claimed in claim 19 is also contained in the operation mode and is switched to by the special pattern
After the general modfel, an image data transmitted is retransmitted with second data format.
26. electricity saving method as claimed in claim 25 is also contained in have been transmitted described in second data format re-transmission
Image data when, show a completely black picture.
27. electricity saving method as claimed in claim 19, it is characterised in that judged whether to the shadow according to the operation mode
Include as data execute the condensing routine：When the operation mode is the general modfel, to second data format
The image data execute the condensing routine, to generate a compressed data.
28. electricity saving method as claimed in claim 27, also includes：When the operation mode is the general modfel, temporarily
It deposits the compressed data and executes a gunzip in a mnemon and to the compressed data, to restore described second
The image data of data format.
29. a kind of electricity saving method for driving circuit, the driving circuit is used for the data compression system of liquid crystal display, institute
Stating electricity saving method includes：
An image data is received, wherein the image data has one first data format or one second data format；
According to an operation mode, judges whether to execute a condensing routine to the image data and judge whether to execute a format
Conversion program, wherein the format conversion program is by second Data Format Transform by the image data at described first
Data format or by first Data Format Transform at second data format；And
Output is to show the image data.
30. electricity saving method as claimed in claim 29, it is characterised in that the image data ratio of second data format
The image data of first data format has less digit.
31. electricity saving method as claimed in claim 29, it is characterised in that judged whether to the shadow according to the operation mode
As data execute the condensing routine：When the operation mode is a special pattern, the shadow is transmitted by a bypass path
As data, to omit the condensing routine, wherein the special pattern is the pattern for the information for not needing full gamut.
32. electricity saving method as claimed in claim 31, it is characterised in that the special pattern includes a reduction colour gamut picture
Pattern, a part of picture display mode and a raising frequency image mode.
33. electricity saving method as claimed in claim 29, it is characterised in that execute the format conversion according to the operation mode
Program by the image data to be converted into first data format or one second data format includes：In the operation mould
By first Data Format Transform it is described the by the image data after formula is by a general pattern switching a to special pattern
Two data formats, and after the operation mode switches to the general modfel by the special pattern, by the image number
It is first data format according to by second Data Format Transform, wherein the special pattern is not need full gamut
The pattern of information.
34. electricity saving method as claimed in claim 31 also includes to keep in the image data in a mnemon.
35. electricity saving method as claimed in claim 29, when being also contained in the execution format conversion program, display one
Completely black picture.
36. electricity saving method as claimed in claim 29, it is characterised in that judged whether to the shadow according to the operation mode
As data execute the condensing routine：Include in the operation mode be general modfel when to the image data execute described in
Condensing routine is to generate a compressed data.
37. electricity saving method as claimed in claim 36, also includes：When the operation mode is the general modfel, temporarily
It deposits the compressed data and executes a gunzip in a mnemon and to the compressed data, to restore the image
Data.
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| CN201310400672.7A CN104424900B (en) | 2013-09-05 | 2013-09-05 | Data compression system and its electricity saving method for liquid crystal display |
| CN201810178356.2A CN108305593B (en) | 2013-09-05 | 2013-09-05 | Data compression system for liquid crystal display and power saving method thereof |
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| CN106547510B (en) * | 2016-11-25 | 2019-04-12 | 维沃移动通信有限公司 | A kind of power saving display methods and mobile terminal |
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| CN104424900B (en) | 2018-03-30 |
| CN108305593B (en) | 2020-11-13 |
| CN104424900A (en) | 2015-03-18 |
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