CN105243982B - A kind of drive control device and driving method for display - Google Patents
A kind of drive control device and driving method for display Download PDFInfo
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- CN105243982B CN105243982B CN201510659259.1A CN201510659259A CN105243982B CN 105243982 B CN105243982 B CN 105243982B CN 201510659259 A CN201510659259 A CN 201510659259A CN 105243982 B CN105243982 B CN 105243982B
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Abstract
The invention discloses a kind of drive control device of display and driving method, and it includes handover module, data compressing module, frame memory module, data decompression module and data drive module.Handover module obtains the first view data and obtains switching command simultaneously, and when it gets the switching command for switching to the first mode of operation, send the first view data to data compressing module using by the first Image Data Compression as the second view data；Frame memory module receives and stores the second view data, and sends to data decompression module and obtain the 3rd view data for decompression；When handover module gets the switching command for switching to the second mode of operation, the first view data is sent to data-driven module, data-driven module the 3rd view data or the first view data are converted into data drive voltage signal.Compared with prior art, the present invention can reduce the memory space of frame memory module, and then reduce cost, while also reduce power consumption caused by view data transmission.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of drive control device for display and driving side
Method.
Background technology
At present, the drive control device (or drive circuit, driving IC) of display according to whether with frame storage module (such as
RAM) it is divided into two kinds.
When the master controller (such as CPU) of display does not update display picture, the drive control device with frame memory module
View data timing in frame memory module can be taken out and be converted into data drive voltage signal, and then sent to display
Respective data lines on to enable the display screen display picture always of display, now master controller is connect by mobile processing
Mouth (MIPI interfaces) transmits view data to frame memory module using command mode (command mode).Therefore stored with frame
The drive control device of module is when master controller shows tableaux without the continual transmission view data of master controller, tool
There is low in energy consumption, power saving effect.But for the frame of multidigit (bit, bit) data of each pixel in storage image data
Memory module needs substantial amounts of memory space, and pixel depth (or pixel resolution) it is bigger, it is necessary to memory space it is bigger, this
The yield of drive control device can not only be reduced so that the cost increase of drive control device.
And it is that direct receive is adopted by master controller by mobile Processing Interface without the drive control device of frame memory module
The view data transmitted with image mode (video mode), and view data is directly changed into data drive voltage signal and used
In the display screen of driving display, if master controller does not send view data, the display screen of display can not be received and changed
Into effective data drive voltage signal, now display screen can show exception.Therefore without the drive control of frame memory module
Although device stills need the continual output image data of master controller when master controller shows tableaux and then is converted to
Data drive voltage signal, have power consumption it is high the characteristics of, but its do not have frame memory module and cause drive control device into
This is relatively low.
To sum up, the drive control device of existing with or without frame memory module can not meet display to power consumption simultaneously
With the requirement of cost.
The content of the invention
The present invention solves the technical problem of provide a kind of drive control device and driving method of display, Neng Gougen
The drive control device with frame memory module and without frame memory module is switched to according to switching command, and with frame memory module
When, by the memory space of the digit compression storing data of view data and then reduction frame memory module so that drive control device
Cost reduces, while also reduces power consumption caused by view data transmission.
In order to solve the above technical problems, one aspect of the present invention is to provide a kind of driving control of display
Device processed, the drive control device include handover module, data compressing module, frame memory module, data decompression module and data-driven
Module；Handover module has the first view data of n-bit data for obtaining each primary color component in each pixel, obtains simultaneously
Take the switching command for switching to the first mode of operation or the second mode of operation；The first work is switched to when handover module is got
During the switching command of pattern, the first view data is sent to data compressing module, data compressing module is by the first view data
In each pixel in each primary color component be compressed into the corresponding pixel points with m-bit data, and then form the second picture number
According to；Frame memory module is used to receive and store the second view data, and sends to data decompression module, with by data decompression module
Second view data decompression is condensed to send after each primary color component has the 3rd view data of n-bit data in each pixel
To data-driven module；When handover module gets the switching command for switching to the second mode of operation, by the first view data
Send to data-driven module, data-driven module is used to the 3rd view data or the first view data being converted to data-driven
Voltage signal, and the display screen for further driving display using data drive voltage signal is shown；Wherein n, m are just whole
Number, and m is less than n.
Wherein, data compressing module is further used for each primary color component in each pixel in the first view data
1 data of primary color component are corresponded in the corresponding pixel points that n-bit data is compressed into the second view data.
Wherein, data compressing module is further used for intercepting in the first view data each primary color component in each pixel
N-bit data highest order data numerical value as corresponding to 1 of primary color component in the corresponding pixel points in the second view data
The numerical value of data.
Wherein, data decompression module is further used for each primary color component in each pixel in the second view data
Identical numerical value expands to n-bit data to obtain the 3rd view data to 1 digit according to this.
Wherein, data-driven module further comprises data latch unit, D/A switch unit and source drive unit；
Data latch unit is used to receive and latch the 3rd view data or the first view data；D/A switch unit is used for the 3rd
View data or the first view data are converted to data drive voltage signal；Source drive unit is used to believe data drive voltage
Number apply in the respective data lines of display.
In order to solve the above technical problems, another technical solution used in the present invention be to provide it is a kind of for display
Driving method, the driving method comprise the following steps：Obtaining each primary color component in each pixel has the first of n-bit data
View data, while obtain the switching command for switching to the first mode of operation or the second mode of operation；Switched to if getting
The switching command of first mode of operation, each each primary color component of pixel boil down in the first view data had into m positions
The corresponding pixel points of data, and then form the second view data；Second view data is stored；By the second image of storage
Data decompression, which is condensed to each primary color component in each pixel, has the 3rd view data of n-bit data；According to the 3rd picture number
It is used for the data drive voltage signal of display screen for driving display according to generation；Cutting for the second mode of operation is switched to if getting
Instruction is changed, data drive voltage signal is directly generated according to the first view data；Wherein n, m are positive integers, and m is less than n.
Wherein, each each primary color component of pixel boil down in the first view data is had to the correspondence of m-bit data
Pixel, and then the step of the second view data of formation includes：By each primary colours in each pixel in the first view data point
1 data of primary color component are corresponded in the corresponding pixel points that the n-bit data of amount is compressed into the second view data.
Wherein, the n-bit data of each primary color component in each pixel in the first view data is compressed into the second image
The step of 1 data that primary color component is corresponded in corresponding pixel points in data, includes：Intercept each picture in the first view data
The numerical value of the highest order data of the n-bit data of each primary color component is as in the corresponding pixel points in the second view data in vegetarian refreshments
The numerical value of 1 data of corresponding primary color component.
Wherein, the second view data decompression of storage is condensed in each pixel into each primary color component has n-bit data
Three view data the step of include：By 1 digit of each primary color component in each pixel in the second view data according to this
Identical numerical value expands to n-bit data to obtain the 3rd view data.
Wherein, the refreshing frequency of the first view data in the first operation mode is less than refreshing in the second operation mode
Frequency.
The beneficial effects of the invention are as follows：The drive control device of display provided by the invention provides two kinds of mode of operations,
The view data of input is compressed under the first mode of operation and frame stores, and is shown using the view data after compression
Show, suitable for the display image that color content is relatively fewer and refresh rate is relatively low (for example, the weather scene of most 8 kinds of colors
The static interfaces of image or most 8 kinds of colors), and directly shown in the second operation mode using the view data of input
Show, suitable for the display image that color content is of a relatively high or refresh rate is of a relatively high (for example, video image).With prior art phase
Than, the drive control device of the invention that can be switched to according to switching command with frame memory module and without frame memory module, and
During with frame memory module, by the digit compression storing data of view data and then the memory space of frame memory module is reduced, is made
Obtaining the cost of drive control device reduces, while also reduces power consumption caused by view data transmission.
Brief description of the drawings
Fig. 1 is the schematic block diagram of the embodiment of drive control device one of display provided by the invention；
Fig. 2 is schematic diagram of the data compressing module by the first Image Data Compression into the second view data in Fig. 1
Fig. 3 is to be used to store the frame storage mould that each primary color component in each pixel has 8 data in the prior art
The schematic diagram of block；
Fig. 4 is to be used to store showing for the frame memory module of each primary color component in each pixel with 1 data in Fig. 1
It is intended to；
Fig. 5 is that data decompression module obtains threeth figure of each primary color component with 8 data in each pixel in Fig. 1
As the schematic diagram of data；
Fig. 6 is the schematic flow sheet provided by the present invention for the embodiment of driving method one of display.
Embodiment
The present invention is described in detail with embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 1, Fig. 1 is the schematic block diagram of the embodiment of drive control device one of display provided by the invention.Such as
Shown in Fig. 1, the drive control device 10 includes handover module 110, data compressing module 120, frame memory module 130, data decompression
Module 140 and data drive module 150；Handover module 110 has n digits for obtaining each primary color component in each pixel
According to the first view data, while obtain and switch to the switching command of the first mode of operation or the second mode of operation；Work as switching
When module 110 gets the switching command for switching to the first mode of operation, the first view data is sent to data compressing module
120, each pixel in the first view data is compressed into each primary color component by data compressing module 120 has m-bit data
Corresponding pixel points, and then formed the second view data；Frame memory module 130 is used to receive and store the second view data, and
Send to data decompression module 140, it is every so that second view data decompression is condensed in each pixel by data decompression module 140
Individual primary color component is sent to data-driven module 150 after having the 3rd view data of n-bit data；When handover module 110 obtains
During to the switching command for switching to the second mode of operation, the first view data is sent to data-driven module 150, data-driven
Module 150 is used to the 3rd view data or the first view data being converted to data drive voltage signal, and further utilizes number
Shown according to the display screen of drive voltage signal driving display；Wherein n, m are positive integers, and m is less than n.
Wherein, handover module 110 passes through mobile Processing Interface for receiving the master controller (not shown in figure 1) of display
The first view data and switching command that (not shown in figure 1) is sent.
Wherein, each pixel includes three primary color components, i.e. first, second, and third image in above-mentioned view data
Each pixel includes three primary color components in data, such as RGB component (or red light component, green component and blue light point
Amount).Certainly, as known to those skilled in the art, in other embodiments, each pixel can include other primary colours point
Amount.
For example, handover module 110 is got in the first view data, each primary color component has 8 digits in each pixel
According to i.e. n is 8, then each pixel includes three primary color components in the first view data, i.e., each pixel has 24 digits
According to 24 RGBs can be shown by representing the display screen of display.Each primary colours point in each pixel in second view data
Measurer has m-bit data, and optional m is less than n any positive integer.Now m it is optional be less than 8 any positive integer, such as 1,2,3,5
Or other numerical value.
Wherein, data compressing module 120 is further used for each primary colours in each pixel in the first view data point
1 data of primary color component are corresponded in the corresponding pixel points that the n-bit data of amount is compressed into the second view data.
Specifically, data compressing module 120 is used to intercept in the first view data each primary color component in each pixel
N-bit data highest order data numerical value as corresponding to 1 of primary color component in the corresponding pixel points in the second view data
The numerical value of data.
Referring to Fig. 2, Fig. 2 be in Fig. 1 data compressing module by the first Image Data Compression showing into the second view data
It is intended to.As shown in Fig. 2 with each primary color component in each pixel in the first view data there are 8 data to carry out example, its
2 can be shown by representing each primary color component8That is 256 luminance levels, also known as 256 GTGs, now because each pixel has
There are 24 data, 2 can be shown24Kind color.Example is each primary color component in a pixel in the first view data in Fig. 2
With 8 data, 8 data that red light component (R component) is specifically corresponded in the pixel are 1,001 0000, corresponding green glow
8 data of component (G components) are 1,001 0000, and 8 data of corresponding blue light components (B component) are 0,000 0000, i.e., should
24 data of pixel are 1,001 0,000 1,001 0,000 0,000 0000.Data compressing module 120 intercepts each primary colours point
The highest order data of 8 data of amount are the numerical value of a data, i.e. the numerical value of the highest order of red light component, green component
The numerical value of highest order and the numerical value of the highest order of blue light components are respectively 1,1 and 0, using 3 data 110 as the second view data
In corresponding pixel points in correspond to primary color component 1 data numerical value.
In other embodiments, if data compressing module 120 will be each in each pixel in the first view data
When other numerical value that it is not 1 that primary color component, which is compressed into m, are such as compressed into 2 data, each pixel in the first image of optional interception
In each primary color component n-bit data such as 2 data in default m positions numerical value as in corresponding pixel points in the second view data
It is every in each pixel in the first view data of optional interception in the numerical value of 2 data of corresponding primary color component, such as above-mentioned Fig. 2
The highest order of 8 data of individual primary color component is the numerical value of first and five-digit number evidence, i.e. first for red light component
It is 1 and 0 respectively with the 5th, first and the 5th for green component is 1 and 0 respectively, for the first of blue light components
Position and the 5th are 0 and 0 respectively, now using 10,10 and 00 as corresponding to base in corresponding pixel points in the second view data
The numerical value of 2 data of colouring component.The default position wherein intercepted in default m positions can be by developer or user according in display
The digit data of each primary color component are configured in each pixel.
Fig. 3 and Fig. 4 are referred to, Fig. 3 is to be used to store each primary color component in each pixel in the prior art to have 8
The schematic diagram of the frame memory module of data, Fig. 4 are that have 1 digit for storing each primary color component in each pixel in Fig. 1
According to frame memory module schematic diagram.As shown in figure 3, frame memory module 130' of the prior art is used to store each pixel
8 data that three primary color components have respectively in 131', as shown in figure 3,8 digits of corresponding red light component according to this R1, R2,
R3, R4, R5, R6, R7 and R8 example represent that G1, G2, G3, G4, G5, G6, G7 and G8 show 8 digits of corresponding green component according to this
Example represents that B1, B2, B3, B4, B5, B6, B7 and B8 example represent 8 digits of corresponding blue light components according to this, in the prior art each
Pixel 131' needs 24 memory spaces.Refer to shown in Fig. 4, when data compressing module 120 is intercepted in the first view data
In each pixel 131' in 8 data of each primary color component highest order numerical value, that is, intercept first R1 of red light component
Numerical value, intercept first G1 of green component numerical value, intercept the first B1 numerical value of blue light components as the second image
After the numerical value for corresponding to 1 data of primary color component in data in corresponding pixel points 131, frame memory module 130 stores respective pixel
1 data of primary color component are corresponded in point 131, i.e. frame memory module 130 stores the R1 positions of red light component in each pixel 131
The B1 positions data of data, the G1 positions data of green component and blue light components, the corresponding each pixel of this time frame memory module 130
131 memory space is changed into 3 from 24 of the prior art, greatly reduces frame memory module 130' memory space,
The frame memory module 130 of the present invention does not almost increase the cost of drive control device 10, but also can be by frame memory module
The second view data timing in 130, which is sent to data decompression module 140, is used for subsequent conversion into data drive voltage signal, subtracts
Few master controller sends the first view data and the transmission power consumption of switching command to handover module 110.
Wherein, data decompression module 140 is further used for each primary colours in each pixel in the second view data point
Identical numerical value expands to n-bit data to obtain the 3rd view data to 1 digit of amount according to this.
Referring to Fig. 5, Fig. 5 is that data decompression module obtains each primary color component in each pixel and has 8 digits in Fig. 1
According to the 3rd view data structural representation.As shown in figure 5, with reference to shown in Fig. 2, in the second view data in a pixel
Three primary color components have 1 data respectively, and its numerical value is respectively 1,1 and 0, then expands to n positions such as 8 respectively with identical numerical value
Position obtains corresponding to 8 data of primary color component in corresponding pixel points in the 3rd view data, specifically, red in the second view data
The Data expansion that 1 bit value of light component is 1 is 8 and obtains 1,111 1111,1 digit of green component in the second view data
The Data expansion being worth for 1 is 8 and obtains 1,111 1111, and the data that 1 bit value of blue light components is 0 in the second view data expand
Open up and obtain 0,000 0000 for 8, and then using three 8 data of above-mentioned extension as corresponding pixel points in the 3rd view data
8 data of middle corresponding red light component, green component and blue light components, 24 digits of corresponding pixel points in the 3rd view data
According to for 1,111 1,111 1,111 1,111 0,000 0000.
In other embodiments, if data decompression module 140 will be each in each pixel in the second view data
Primary color component be not other numeric datas such as 2 data decompressions of 1 data when, it is optional by bits per inch evidence in 2 data
N positions such as 8 data are obtained after extending default extension digit respectively with identical numerical value and then form the 3rd view data.As described above
In Fig. 2, if in the first view data of interception in each pixel the highest order of 8 data of each primary color component be first and
The second view data is obtained after the numerical value of five-digit number evidence, then now red light component in a pixel in the second view data,
It is 10,10 and 00 respectively that the numerical value of 2 data of green component and blue light components, which is, optional by the pixel in the second view data
First of each primary color component and second data expand to 4, i.e. red light component respectively with identical numerical value respectively in point
In 2 data numerical value 10 extend 4 respectively after form 1,111 0000, the numerical value 10 of 2 data extends respectively in green component
1,111 0000 are formed after 4,0,000 0000 are formed after the numerical value 10 of 2 data extend 4 respectively in blue light components, and then must
Corresponding primary color component into the 3rd view data in corresponding pixel points, now in the 3rd view data the pixel 24 digits
According to for 1,111 0,000 1,111 0,000 0,000 0000, when in the second view data each pixel decompress after obtain
Three view data.2 data of each primary color component are pre- in decompression in each pixel in wherein the second view data
If extension digit can be entered by the digit data of each primary color component in each pixel of developer or user according to display
Row is set.
It is understood that the first view data and the 3rd view data are identical or different.Will with data compressing module 120
First Image Data Compression is into exemplified by each primary color component has the second view data of 1 data in each pixel, when the
When the numerical value of all data of each primary color component is identical in each pixel in one view data, such as each primary color component
When the numerical value of 8 data is identical, the 3rd view data that obtains by data decompression module 140 then with the first view data phase
Together, the 3rd view data otherwise obtained by data decompression module 140 is then different from the first view data.
Wherein, if three primary color components are red light component, green component and indigo plant in each pixel in the second view data
Light component has 1 data respectively, and the 3rd view data after the decompression of follow-up data decompression module 140 passes through data-driven mould
Block 150 is converted to after data drive voltage signal the color having on the display screen of display shown in table 1.
Three primary color components have the color set that 1 data can be realized respectively in 1 each pixel of table
| R1 bit values | G1 bit values | B1 bit values | Realize color |
| 1 | 1 | 1 | White |
| 1 | 1 | 0 | Yellow |
| 1 | 0 | 1 | Pink colour |
| 1 | 0 | 0 | It is red |
| 0 | 1 | 1 | Cyan |
| 0 | 0 | 1 | Blueness |
| 0 | 1 | 0 | Green |
| 0 | 0 | 0 | Black |
Please continue to refer to Fig. 1, data-driven module 150 further comprises data latch unit 151, D/A switch unit
152 and source drive unit 153；Data latch unit 151 is used to receive and latch the 3rd view data or the first view data；
D/A switch unit 152 is used to the 3rd view data or the first view data being converted to data drive voltage signal；Source electrode drives
Moving cell 153 be used for by data drive voltage signal apply in the respective data lines (not shown in figure 1) of display with driving
The display screen of display is shown.
In one embodiment, when the display of mobile phone needs real-time display dynamic menu such as playing video file
When, the handover module 110 in the drive control device 10 of the display of the mobile phone gets mobile phone master control with certain refreshing frequency
Device processed pass through each primary color component in each pixel that mobile Processing Interface is sent have 8 data the first view data and
The switching command of the second mode of operation is switched to, handover module 110 further sends the first view data to data-driven mould
Block 150, data-driven module 150 is used to the first view data being converted to data drive voltage signal, and further utilizes number
Shown according to the display screen of drive voltage signal driving mobile telephone display.Wherein if refreshing frequency is 60Hz, then it represents that switching
Module 110 obtained 60 the first view data of frame in one second, while data-driven module 150 is equally driven with 60Hz refreshing frequency
Dynamic display screen is shown.I.e., now, the refreshing frequency for the first view data that handover module 110 is received is equal to display
Display screen refreshing frequency.
When the display of mobile phone needs to show weather scene, when being in leather sheath pattern such as mobile phone, that is, mobile phone peripheral hardware is closed
Leather sheath when, handover module 110, which receives each primary color component in each pixel that mobile phone master controller is sent, has 8 data
The first view data and switch to the switching command of the first mode of operation；Specifically, needed in the first view data for raindrop
24 data of the pixel to be shown are OX000080 (hexadecimal), switch to binary system for 0,000 0,000 0,000 0000
1111 0000, wherein 8 data for red light component, green component and blue light components are respectively 0,000 0000,0000
0000 and 1,111 0000, the feux rouges point in corresponding pixel points in the second view data obtained after data compressing module 120
The numerical value of 1 data of amount, green component and blue light components is respectively 0,0 and 1, with reference to shown in table 1, follow-up data drive module
Can be in the display screen display blueness of display after 150 conversions.If similarly need to show for the sun in the first view data
24 data of pixel be OX808000 (hexadecimal), switch to binary system for 1,111 0,000 1,111 0,000 0000
0000, wherein 8 data for red light component, green component and blue light components are respectively 1,111 0000,1,111 0000 and
0000 0000, the red light component in corresponding pixel points, green in the second view data obtained after data compressing module 120
The numerical value of 1 data of light component and blue light components is respectively 1,1 and 0, with reference to shown in table 1,150 turns of follow-up data drive module
Can be in the display screen display yellow of display after changing.
It is understood that developer or user is optional will directly need the color that shows to be decompressed in above-mentioned table 1
First view data of the 3rd view data as the input of master controller afterwards.
It is understood that there is 1 because frame memory module 130 is directed to each primary color component in each pixel 131
The memory space of data, each primary color component needs the frame storage mould of 8 data in more each pixel 131'
Block 130', frame memory module 130 of the invention to the cost of drive control device 10 almost without increase, but also can be by the second figure
Be drive voltage signal as data timing is exported to data decompression module 140 for subsequent conversion so that mobile phone liquid crystal
Display screen can normally be shown.If the refreshing frequency of image is 60Hz in the second mode of operation, i.e., master controller and display is aobvious
Display screen is 1 second 60 frame image data of renewal, then in the first mode of operation, master controller is without real-time update weather scene
Or other scenes, such as optional default renewal time, 1 second, 60 seconds or other numerical value update 1 frame image data, handover module 110 is right
First view data should be received with 1Hz or lower refreshing frequency, be obtained when enabling to handover module 110 compared with the second mode of operation
Take the first view data and caused power consumption is greatly reduced.Meanwhile data-driven module 150 is still controlled with 60Hz refreshing frequency
Display screen is shown, such as by being timed to frame memory module 130, it is exported the second figure with 60Hz refreshing frequency
As to data decompression module 140.That is, the refreshing frequency for the first view data that handover module 110 is received is much smaller than
The refreshing frequency of display screen.
It is understood that need to show tableaux in display or show that color content is less and refresh rate is relatively low
During image, because mobile Processing Interface is with command mode the first view data of transmission to handover module 110 so that follow-up data solution
Die block 140 regularly can receive the second view data from frame processing module 130, and then will be used after the decompression of the second view data
In subsequent conversion be data drive voltage signal.Therefore handover module 110 obtains the first view data in the first mode of operation
Frequency be less than the frequency of the first view data obtained in the second mode of operation.
Referring to Fig. 6, Fig. 6 is the flow signal provided by the present invention for the embodiment of driving method one of display
Figure.As shown in fig. 6, the driving method comprises the following steps：
Step 601：Obtaining each primary color component in each pixel has the first view data of n-bit data, obtains simultaneously
Take the switching command for switching to the first mode of operation or the second mode of operation.
Step 602：If getting the switching command for switching to the first mode of operation, by each picture in the first view data
The each primary color component of vegetarian refreshments boil down to has the corresponding pixel points of m-bit data, and then forms the second view data；Wherein n, m are
Positive integer, and m is less than n.
Step 603：Second view data is stored.
Step 604：The second view data decompression of storage is condensed in each pixel into each primary color component has n digits
According to the 3rd view data.
Step 605：The data drive voltage signal of the display screen for driving display is generated according to the 3rd view data.
Step 606：If getting the switching command for switching to the second mode of operation, directly generated according to the first view data
Data drive voltage signal.
Wherein, the display in the embodiment of drive control device one of the display in present embodiment and aforementioned display device
With identical structure, the corresponding handover module 110 of step 601-step 606, data compressing module 120, frame memory module 130,
Data decompression module 140 and data drive module 150 perform operation, and here is omitted.
Wherein, the refreshing frequency of the first view data in the first operation mode is less than refreshing in the second operation mode
Frequency.
Wherein, each each primary color component of pixel boil down in first view data had into m digits in step 602
According to corresponding pixel points, and then formed the second view data the step of include：Will be every in each pixel in the first view data
1 data of primary color component are corresponded in the corresponding pixel points that the n-bit data of individual primary color component is compressed into the second view data.
Specifically, the n-bit data of each primary color component in each pixel in the first view data is compressed into the second figure
The step of 1 data as corresponding to primary color component in the corresponding pixel points in data, includes：Intercept each in the first view data
The numerical value of the highest order data of the n-bit data of each primary color component is as the corresponding pixel points in the second view data in pixel
The numerical value of 1 data of middle corresponding primary color component.
Further, the second view data decompression of storage is condensed in each pixel each primary colours point in step 604
Measurer has the step of three view data of n-bit data to include：By each primary colours in each pixel in the second view data point
Identical numerical value expands to n-bit data to obtain the 3rd view data to 1 digit of amount according to this.
Wherein, the step of directly generating data drive voltage signal according to described first image data in step 605 or 606
Further comprise the steps：
Latch the 3rd view data or the first view data.
3rd view data or the first view data are converted into data drive voltage signal.
Data drive voltage signal is applied to the respective data lines of display.
It is understood that directly generate data-driven electricity according to described first image data in above-mentioned steps 605 or 606
Correspond to data latch unit in the embodiment of drive control device one of aforementioned display device the step of the step of pressing signal includes respectively
151st, D/A switch unit 152 and source drive unit 153 perform operation, and here is omitted.
The situation of prior art is different from, the drive control device of display provided by the invention provides two kinds of mode of operations,
The view data of input is compressed in the first operational mode and frame stores, and utilizes the view data after compression to carry out
It has been shown that, suitable for the display image that color content is relatively fewer and refresh rate is relatively low (for example, the day gas field of most 8 kinds of colors
The static interfaces of color in scape image or most 8), and directly shown in the second operation mode using the view data of input
Show, suitable for the display image that color content is of a relatively high or refresh rate is of a relatively high (for example, video image).With prior art phase
Than, the drive control device of the invention that can be switched to according to switching command with frame memory module and without frame memory module, and
During with frame memory module, by the digit compression storing data of view data and then the memory space of frame memory module is reduced, is made
Obtaining the cost of drive control device reduces, while also reduces power consumption caused by view data transmission.
Embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize the present invention
The equivalent structure or equivalent flow conversion that specification and accompanying drawing content are made, or directly or indirectly it is used in other related technologies
Field, it is included within the scope of the present invention.
Claims (4)
1. a kind of drive control device for display, it is characterised in that the drive control device includes handover module, data pressure
Contracting module, frame memory module, data decompression module and data drive module；The handover module is used to obtain in each pixel
Each primary color component has the first view data of n-bit data, while obtains and switch to the first mode of operation or the second work
The switching command of pattern；When the handover module gets the switching command for switching to the first mode of operation, by described first
View data is sent to the data compressing module, and the data compressing module is by each pixel in described first image data
Point, which is compressed into each primary color component, has the corresponding pixel points of m-bit data, and then forms the second view data；The frame stores mould
Block is used to receive and store second view data, and sends to the data decompression module, with by the data decompression mould
Second view data decompression is condensed to each primary color component in each pixel by block has the 3rd view data of n-bit data
After send to the data-driven module；When the handover module gets the switching command for switching to the second mode of operation,
Described first image data are sent to the data-driven module, the data-driven module and are used for the 3rd picture number
According to or described first image data be converted to data drive voltage signal, and further driven using the data drive voltage signal
The display screen for moving the display is shown；Wherein n, m are positive integers, and m is less than n；The data compressing module is specifically used
In the n-bit data of each primary color component in each pixel in described first image data is compressed into second view data
In corresponding pixel points in correspond to 1 data of primary color component, the data compressing module is further used for intercepting described first
In view data in each pixel the numerical value of the highest order data of the n-bit data of each primary color component as second image
The numerical value of 1 data of primary color component is corresponded in corresponding pixel points in data；The data decompression module is specifically used for institute
State 1 digit of each primary color component in each pixel in the second view data according to this identical numerical value expand to n-bit data with
Obtain the 3rd view data.
2. drive control device according to claim 1, it is characterised in that the data-driven module further comprises data
Latch units, D/A switch unit and source drive unit；The data latch unit is used to receive and latch the 3rd figure
As data or described first image data；The D/A switch unit is used for the 3rd view data or first figure
As data are converted to the data drive voltage signal；The source drive unit is used to apply the data drive voltage signal
Add in the respective data lines of the display.
3. a kind of driving method for display, it is characterised in that the described method comprises the following steps：
Obtaining each primary color component in each pixel has the first view data of n-bit data, while obtains and switch to first
The switching command of mode of operation or the second mode of operation；
If getting the switching command for switching to the first mode of operation, each pixel in described first image data is compressed
There are the corresponding pixel points of m-bit data for each primary color component, and then form the second view data, specifically include：By described
The n-bit data of each primary color component is compressed into the corresponding picture in second view data in each pixel in one view data
1 data of primary color component are corresponded in vegetarian refreshments, intercept the n of each primary color component in each pixel in described first image data
The numerical value of the highest order data of position data is as corresponding to 1 of primary color component in the corresponding pixel points in second view data
The numerical value of data；
Second view data is stored；
Second view data decompression of storage is condensed in each pixel into each primary color component has the 3rd of n-bit data
View data, specifically include：1 digit of each primary color component in each pixel in second view data is identical according to this
Numerical value expand to n-bit data to obtain the 3rd view data；
The data drive voltage signal of the display screen for driving the display is generated according to the 3rd view data；
If getting the switching command for switching to the second mode of operation, directly the data are generated according to described first image data
Drive voltage signal；
Wherein n, m are positive integers, and m is less than n.
4. according to the method for claim 3, it is characterised in that described first image data are in this first operative mode
Refreshing frequency be less than refreshing frequency under second mode of operation.
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| CN106375553B (en) | 2016-08-24 | 2019-09-17 | 武汉华星光电技术有限公司 | Display screen combination and the mobile terminal with display screen combination |
| CN109920362B (en) * | 2019-04-16 | 2021-04-30 | 京东方科技集团股份有限公司 | Data latch unit and driving method, data latch and driving method, and display device |
| CN113126939B (en) * | 2020-01-15 | 2022-05-31 | 荣耀终端有限公司 | Display method, display control device, display and electronic equipment |
| CN111767017B (en) * | 2020-05-29 | 2022-10-04 | 昆山工研院新型平板显示技术中心有限公司 | Display panel and display method thereof |
| CN112992066B (en) * | 2021-04-26 | 2021-09-07 | 北京集创北方科技股份有限公司 | Display data access method and control circuit thereof, display and information processing device |
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| CN101188673A (en) * | 2006-11-15 | 2008-05-28 | 群康科技(深圳)有限公司 | Display system and its display method |
| CN101739912A (en) * | 2009-12-29 | 2010-06-16 | 深圳超多维光电子有限公司 | Display |
| KR101208296B1 (en) * | 2011-04-11 | 2012-12-05 | 삼성전기주식회사 | Apparatus for Processing On-Screen Display and System for Reprogramming Camera Module Having Apparatus for Processing On-Screen Display |
| JP2013238852A (en) * | 2012-04-19 | 2013-11-28 | Semiconductor Energy Lab Co Ltd | Semiconductor device, image display device, storage device, and electronic apparatus |
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| US8884977B2 (en) * | 2012-08-24 | 2014-11-11 | Analogix Semiconductor, Inc. | Panel self refreshing with changing dynamic refresh rate |
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| CN101188673A (en) * | 2006-11-15 | 2008-05-28 | 群康科技(深圳)有限公司 | Display system and its display method |
| CN101739912A (en) * | 2009-12-29 | 2010-06-16 | 深圳超多维光电子有限公司 | Display |
| KR101208296B1 (en) * | 2011-04-11 | 2012-12-05 | 삼성전기주식회사 | Apparatus for Processing On-Screen Display and System for Reprogramming Camera Module Having Apparatus for Processing On-Screen Display |
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