CN109712586A - A kind of display methods, device and computer readable storage medium - Google Patents
A kind of display methods, device and computer readable storage medium Download PDFInfo
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- CN109712586A CN109712586A CN201910116877.XA CN201910116877A CN109712586A CN 109712586 A CN109712586 A CN 109712586A CN 201910116877 A CN201910116877 A CN 201910116877A CN 109712586 A CN109712586 A CN 109712586A
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Abstract
The embodiment of the invention provides a kind of display methods, device and computer readable storage mediums.The described method includes: liquid crystal display panel is divided into n region in advance, the length in the n region is identical as the length of the liquid crystal display panel, the sum of the width in the n region is the width of the liquid crystal display panel, and the n is the positive integer greater than 1；The liquid crystal display panel carries out backlight modulation when displaying an image, according to the regional compartmentalization domain divided in advance, lights the backlight in n region on the liquid crystal display panel one by one in order after liquid crystal (LC) stablizes.
Description
Technical field
The present invention relates to field of display technology, espespecially a kind of display methods, device and computer readable storage medium.
Background technique
Virtual reality (VR) is risen gradually, and for user when using virtual reality device, whole visuals field of user are all by VR head
Aobvious to be covered, the thing that vision system is experienced is exactly whole visual field, and in this case, dizziness caused by VR just has
The more complicated origin cause of formation.The case where eyes are seen when one object is mobile: with change in location, the track of object is a line；
And the image that display is shown just jumps to next point after each puts display a period of time.Once working as the head of people
Movement, then human eye can also have opposite movement relative to the object of display, originally the track of stationary object is just no longer
A point, but jumped back to when each frame end it " should " position.However the visual persistence phenomenon of human eye is then
The image of previous frame He this frame can be retained, then image causes smear, so as to cause dizziness.
Want that the image of object is allowed more continuously to move, be desirably also most simple and crude method be improve refresh rate.
Another method exactly reduces sunset glow (Persistence), and screen is shining only in the very short time, that is, " zero
Sunset glow " (Zero Persistence).Due to the visual persistence effect of human eye, refresh rate is sufficiently high would not to perceive screen only
There is each frame very short time to shine.But in order to make up the deficiency of brightness, the intensity of pixel light emission will be greatly promoted in each frame.
Low sunset glow, which is shown, is that the track of object is closer to the real trace of physical world when head is dynamic to VR aobvious meanings.
But in existing sunset glow displaying scheme, black frame insertion signals are used as using single synchronization signal (TE),
Liquid crystal has not responded to backlight and has been switched on after TE black plug last line scans through, it is easy to cause to see smear, Er Qiesui
Product resolution ratio increase, the adjustable range of TE signal is smaller and smaller, and the brightness after thus leading to black plug is too low.
Summary of the invention
The embodiment of the present invention provides a kind of display methods, device and computer readable storage medium.
On the one hand, the embodiment of the invention provides a kind of display methods, comprising:
Liquid crystal display panel is divided into n region in advance, the length in the n region with the liquid crystal display panel
Length it is identical, the sum of the width in the n region be the liquid crystal display panel width, the n be it is just whole greater than 1
Number；
When the liquid crystal display panel shows image, backlight modulation is carried out according to the regional compartmentalization domain divided in advance,
Liquid crystal lights the backlight in n region on the liquid crystal display panel one by one in order after stablizing.
In an alternative embodiment, the value range of the n is [2,30].
In an alternative embodiment, the n region it is of same size；
When the liquid crystal display panel shows image, backlight modulation is carried out according to the regional compartmentalization domain divided in advance,
Liquid crystal lights the backlight in n region on the liquid crystal display panel one by one in order after stablizing, comprising: the liquid in n-th of region
After LCD panel starts scan image, lighted on the liquid crystal display panel after the secondth time of first time initial delay
The backlight in n-th of region.
In an alternative embodiment, the first time is calculated using the following equation: (line scan speed × screen is differentiated
Rate/n)+liquid crystal response the time；
Second time is calculated using the following equation: (1/ frame frequency)-(line scan speed × screen resolution/n)-liquid crystal
Response time.
On the other hand, the embodiment of the invention also provides a kind of display device, including division module and backlight modulation module,
Wherein:
The division module, for liquid crystal display panel to be divided into n region in advance, the length in the n region is equal
Identical as the length of the liquid crystal display panel, the sum of the width in the n region is the width of the liquid crystal display panel, institute
Stating n is the positive integer greater than 1；
The backlight modulation module is used for when the liquid crystal display panel shows image, according to the region divided in advance
Subregion carries out backlight modulation, lights the backlight in n region on the liquid crystal display panel one by one in order after liquid crystal is stablized.
In an alternative embodiment, the value range of the n is [2,30].
In an alternative embodiment, the n region it is of same size；The backlight modulation module is used in n-th of area
After the liquid crystal display panel in domain starts scan image, the liquid crystal display is lighted after the secondth time of first time initial delay
The backlight in n-th of region on panel.
In another aspect, being stored thereon with computer the embodiment of the invention also provides a kind of computer readable storage medium
Instruction, when described instruction is executed by processor the step of the realization above method.
In another aspect, the embodiment of the invention also provides a kind of computer equipment, including memory, processor and it is stored in
On memory and the computer program that can run on a processor, the processor realize the above method when executing described program
Step.
Present invention method realizes the unhook of backlight and frame frequency by subregion backlight modulation, so that backlight
Brightness is not limited by every frame time, to promote the brightness of backlight.Simultaneously because lighting the back in each region after liquid crystal is stablized
Light, so as to solve the problems, such as smear.
Certainly, implement any of the products of the present invention or method it is not absolutely required at the same reach all the above excellent
Point.Other features and advantages of the present invention will illustrate in subsequent specification embodiment, also, partly implement from specification
It is become apparent in example, or understand through the implementation of the invention.The purpose of the embodiment of the present invention and other advantages can pass through
Specifically noted structure is achieved and obtained in the specification, claims and drawings.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solution of the present invention, and constitutes part of specification, with this
The embodiment of application technical solution for explaining the present invention together, does not constitute the limitation to technical solution of the present invention.Attached drawing
In the shapes and sizes of each component do not reflect actual proportions, purpose is schematically illustrate the content of present invention.
Fig. 1 is display methods of embodiment of the present invention flow chart；
Fig. 2 is region division exemplary diagram；
Fig. 3 is display device of embodiment of the present invention schematic diagram；
Fig. 4 is backlight modulation displaying scheme schematic diagram；
Fig. 5 is double back light system plate principle flow charts；
Fig. 6 is driving setting connection figure；
Fig. 7 is driver' s timing figure.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawings and examples.Following embodiment
For illustrating the present invention, but it is not intended to limit the scope of the invention.It should be noted that in the absence of conflict, the application
In embodiment and embodiment in feature can mutual any combination.
Do not respond that backlight is switched on and black plug brightness is low to solve the problems, such as to solve liquid crystal last rows, the present invention is real
It applies example and proposes following scheme, as shown in Figure 1, comprising the following steps:
Step 1, liquid crystal display panel is divided into n region in advance, the n is the positive integer greater than 1；
Liquid crystal display panel screen is divided into n region from horizontal direction in advance.The length in the n region is and institute
The length for stating liquid crystal display panel is identical, and the sum of the width in the n region is the width of the liquid crystal display panel, the n
For the positive integer greater than 1；
Optionally, the value of n can be determined according to the size of liquid crystal display panel.Such as mobile phone or VR equipment
Equal small screens, can be divided into 2-4 region, for large-screens such as computer, display, TVs, can divide 5-30
Region.Above-mentioned division is only for example, and the value range of n can be [2,30].Optionally, it handles for convenience, n of division
It region can be identical with size.
Such as entire liquid crystal display panel is divided into 3 regions, respectively region 1, region 2 and region 3, such as Fig. 2 institute
Show, it is seen then that the length in region 1, region 2 and region 3 is identical as the length of the liquid crystal display panel, the width phase in 3 regions
In addition and for the liquid crystal display panel width.Three regions can be inserted respectively according to the sequence in region 1, region 2 and region 3
It is black.In embodiments of the present invention, black plug is not to be inserted into whole frame, but subregion is inserted into.
Step 2, when the liquid crystal display panel shows image, backlight tune is carried out according to the regional compartmentalization domain divided in advance
System lights the backlight in n region on the liquid crystal display panel one by one in order after liquid crystal is stablized.
For example, after the liquid crystal display panel in n-th of region starts scan image, from first time initial delay the secondth
The backlight in n-th of region on the liquid crystal display panel is lighted after time.
Liquid crystal, which is stablized can be, refers to that liquid crystal overturning is completed.
The sequence lighted can be in accordance with the order from top to bottom, be matched with the sequence with scanning.
Present invention method lights backlight by postponing in subregional, realizes the unhook of backlight and frame frequency, so that
The brightness of backlight is not limited by every frame time, to promote the brightness of backlight.Simultaneously because lighting each area after liquid crystal is stablized
The backlight in domain, so as to solve the problems, such as smear.
In one alternate embodiment, the first time can be calculated using the following equation:
(line scan speed × screen resolution/n)+liquid crystal response time.(formula 1) in one alternate embodiment, institute
Stating for the second time can be calculated using the following equation:
(1/ frame frequency)-(line scan speed × screen resolution/n)-liquid crystal response time.(formula 2)
It can be interrupted after receiving the TE time by microcontroller (MCU), be calculated at the first time i.e. according to formula 1
Delay time calculates the second time i.e. enable time according to formula 2, the backlight in the n-th region is lighted after enable time.By
Backlight is lighted in delay, being equivalent to has the effect of black plug.Therefore black plug initial time, the second time can also be become at the first time
The alternatively referred to as black plug duration.Backlight black frame insertion signals are generated in addition, controlling by MCU, it can be to avoid due to the IC speed of service
The problem of black plug number of channels deficiency caused by not fast enough or port is insufficient.
The embodiment of the present invention also provides a kind of display device, as shown in figure 3, including division module 301 and backlight modulation mould
Block 302, in which:
The division module 301, for liquid crystal display panel to be divided into n region, the length in the n region in advance
Identical as the length of the liquid crystal display panel, the sum of the width in the n region is the width of the liquid crystal display panel,
The n is the positive integer greater than 1；
The backlight modulation module 302 is used for when the liquid crystal display panel shows image, according to the area divided in advance
Domain subregion carries out backlight modulation, lights the back in n region on the liquid crystal display panel one by one in order after liquid crystal is stablized
Light.
In one alternate embodiment, the value of the n is determined according to the size of liquid crystal display panel.
In one alternate embodiment, the value range of the n is [2,30].
In one alternate embodiment, the n region is of same size；The backlight modulation module is used at n-th
After the liquid crystal display panel in region starts scan image, the liquid crystal is lighted after the secondth time of first time initial delay
Show the backlight in n-th of region on panel.
In one alternate embodiment, the first time can be calculated using the following equation: (line scan speed × screen
Resolution ratio/n)+liquid crystal response the time.
In one alternate embodiment, second time can be calculated using the following equation: (1/ frame frequency)-(row scanning
Speed × screen resolution/n)-liquid crystal response the time.
The device of that embodiment of the invention lights backlight by postponing in subregional, realizes the unhook of backlight and frame frequency, so that
The brightness of backlight is not limited by every frame time, to promote the brightness of backlight.Simultaneously because lighting each area after liquid crystal is stablized
The backlight in domain, so as to solve the problems, such as smear.
It is illustrated by taking n=2 as an example below:
If screen is divided into two regions, including upper half screen and lower half screen.Since backlight is corresponding with screen area,
Then correspondingly, backlight is also classified into two parts, comprising: upper half screen backlight and lower half screen backlight.It is controlled respectively using upper and lower two backlights
System, delay a period of time opens upper backlight after upper half screen has been shown, delay a period of time opens lower back after lower half screen has been shown
Light.It is possible thereby to solve the problems, such as that liquid crystal display (LCD) display screen is unable to improve in lower half portion smear, and because will carry on the back
The driving time of light increases to field duration by Blanking (blank) time before, and lower half screen backlight can be designed next
Frame can achieve and promote the relatively low effect of black plug mould group brightness.Using upper and lower half screen distinguish black plug so that backlight black frame insertion signals with
Frame frequency breaks off relations, and reduces the limitation of backlight black plug length of time, increases the backlight black plug time, can be by the effect of backlight black insertion technology
Promote 50%.
In the present embodiment, LCD display module (LCM) display process is finely divided, by the scanning process of entire screen
Two screens up and down are split as, process is scanned for every half of screen and simulation that stable liquid crystal is fixed time calculates.Selection exists
The liquid crystal (LC) of upper and lower half of screen stablizes the time and opens backlight, and state when overturning with liquid crystal response can be scanned with hidden rows,
LCM is reduced to feel eye bring discomfort.Due to by the display process of backlight by upper sub-screen partition realize backlight and
The unhook of frame frequency crosses next frame so that the brightness of backlight is not limited by every frame time, promotes backlight illumination.
Backlight control signal is exported by microcontroller (MCU), utilizes the signal (such as TE signal) of panel (panel) itself
Triggering synchronization is carried out, to guarantee that the timing of backlight up and down is carried out according to design requirement.
Since the frequency of TE time is equally synchronous with display frequency, the present embodiment is as a reference point with TE signal, hair
Send backlight modulation driving signal.
It is interrupted after MCU is connected to TE signal, delay output backlight black frame insertion signals BLM1:
Delay time, that is, BLM1 initial time calculation formula: (IC (integrated circuit) line scan speed × screen resolution/
2)+LC the response time
Enable time (black plug duration, that is, BLM1 signal duration): (1/ frame frequency)-(IC line scan speed × screen
Curtain resolution ratio/2)-LC the response time
It is interrupted after MCU is connected to TE signal, delay output backlight black frame insertion signals BLM2:
Delay time calculation formula: (IC line scan speed × screen resolution)+LC response time
Enable time (black plug duration, that is, BLM2 signal duration): (1/ frame frequency)-(IC line scan speed × screen
Curtain resolution ratio/2)-LC the response time
As shown in figure 4, the initial time of BLM1 is calculated according to above-mentioned formula, liquid crystal rotation at this time, which has been arrived, stablizes shape
State, BLM1 triggers black plug by high level in this example.BLM2 is triggered after the Blanking time.
Fig. 5 is the double back light system plate schematic diagrams of the embodiment of the present invention, and the TE signal of LCD MODULE (MDL) is for triggering
Interrupt control unit sends enable signal to timer 1 and timer 2, and wherein timer 1 is used to send the black frame insertion signals of half screen
BLM1, timer 2 are used to send the black frame insertion signals BLM2 of lower half screen.
The MCU driving setting connection of the embodiment of the present invention is as shown in Figure 6.The circuit connecting in figure with pin 5 and 6 is crystal oscillator
Circuit, for providing stable work clock for working group.The circuit connecting in figure with pin 28,29 and 30 is power circuit,
For providing stable operating voltage for working group.It, can also be with other than crystal oscillating circuit and power circuit shown in the present embodiment
Using other crystal oscillating circuits and power circuit, as long as being able to satisfy system operation requirements.In Fig. 6, TE signal passes through the port PC4
It is connected to the setting that MCU carries out sample reference clock, PB9, PB6 are respectively intended to the output of output BLM signal.
Fig. 7 is a kind of driver' s timing figure of the embodiment of the present invention.In figure, yellow signal is TE reference signal, and pink colour is to work as
The BLM1 signal of half of backlight in previous frame, blue signal are the BLM2 signal of lower half of backlight of previous frame.
The small-medium size liquid crystal module that lamp bar shines is divided into two parts according to display area by the present embodiment, carries out backlight
Control, the backlight in upper and lower two regions switches in turn to be lighted, it is ensured that the backlight lightening time of every part carries out a little stablizing the time
It is bright.Timing separation is that lower half frame time lights half of backlight, and the first half time of next frame lights lower half backlight, and
Backlight control signal is exported using MCU, guarantees that the timing of backlight up and down is carried out according to design requirement.Backlight illumination is promoted into several times
Solves the smear problem of screen bottom half simultaneously.Carrying out time adjustment by adjusting the parameter in above-mentioned formula can obtain not
With the promotion of the backlight illumination of degree.Meanwhile black plug and display (Display) compatible operations, make black plug and liquid crystal stable state
It is synchronous, promote display image quality.
The embodiment of the present invention also provides a kind of computer storage medium, and the computer storage medium is stored with computer journey
Sequence；After the computer program is performed, the method that aforementioned one or more embodiments provide can be realized, for example, executing such as
Method shown in Fig. 1.
It will appreciated by the skilled person that whole or certain steps, system, dress in method disclosed hereinabove
Functional module/unit in setting may be implemented as software, firmware, hardware and its combination appropriate.In hardware embodiment,
Division between the functional module/unit referred in the above description not necessarily corresponds to the division of physical unit；For example, one
Physical assemblies can have multiple functions or a function or step and can be executed by several physical assemblies cooperations.Certain groups
Part or all components may be implemented as by processor, such as the software that digital signal processor or microprocessor execute, or by
It is embodied as hardware, or is implemented as integrated circuit, such as specific integrated circuit.Such software can be distributed in computer-readable
On medium, computer-readable medium may include computer storage medium (or non-transitory medium) and communication media (or temporarily
Property medium).As known to a person of ordinary skill in the art, term computer storage medium is included in for storing information (such as
Computer readable instructions, data structure, program module or other data) any method or technique in the volatibility implemented and non-
Volatibility, removable and nonremovable medium.Computer storage medium include but is not limited to RAM, ROM, EEPROM, flash memory or its
His memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storages, magnetic holder, tape, disk storage or other
Magnetic memory apparatus or any other medium that can be used for storing desired information and can be accessed by a computer.This
Outside, known to a person of ordinary skill in the art to be, communication media generally comprises computer readable instructions, data structure, program mould
Other data in the modulated data signal of block or such as carrier wave or other transmission mechanisms etc, and may include any information
Delivery media.
Although disclosed herein embodiment it is as above, the content only for ease of understanding the present invention and use
Embodiment is not intended to limit the invention.Technical staff in any fields of the present invention is taken off not departing from the present invention
Under the premise of the spirit and scope of dew, any modification and variation, but the present invention can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of display methods, which is characterized in that the described method includes:
Liquid crystal display panel is divided into n region, length of the length in the n region with the liquid crystal display panel in advance
Spend identical, the sum of the width in the n region is the width of the liquid crystal display panel, and the n is positive integer greater than 1；
When the liquid crystal display panel shows image, backlight modulation is carried out according to the regional compartmentalization domain divided in advance, in liquid crystal
Light the backlight in n region on the liquid crystal display panel after stabilization one by one in order.
2. the method according to claim 1, wherein wherein,
The value range of the n is [2,30].
3. the method according to claim 1, wherein wherein,
The n region it is of same size；
When the liquid crystal display panel shows image, backlight modulation is carried out according to the regional compartmentalization domain divided in advance, in liquid crystal
Light the backlight in n region on the liquid crystal display panel after stabilization one by one in order, comprising:
After the liquid crystal display panel in n-th of region starts scan image, from point after the secondth time of first time initial delay
The backlight in n-th of region on the bright liquid crystal display panel.
4. according to the method described in claim 3, it is characterized in that, wherein:
The first time is calculated using the following equation: (line scan speed × screen resolution/n)+liquid crystal response time；
Second time is calculated using the following equation: (1/ frame frequency)-(line scan speed × screen resolution/n)-liquid crystal response
Time.
5. a kind of display device, which is characterized in that including division module and backlight modulation module, in which:
The division module, for liquid crystal display panel to be divided into n region in advance, the length in the n region is and institute
The length for stating liquid crystal display panel is identical, and the sum of the width in the n region is the width of the liquid crystal display panel, the n
For the positive integer greater than 1；
The backlight modulation module is used for when the liquid crystal display panel shows image, according to the regional compartmentalization divided in advance
Domain carries out backlight modulation, lights the backlight in n region on the liquid crystal display panel one by one in order after liquid crystal is stablized.
6. device according to claim 5, which is characterized in that wherein,
The value range of the n is [2,30].
7. device according to claim 5, which is characterized in that wherein,
The n region it is of same size；
The backlight modulation module is used for after the liquid crystal display panel in n-th of region starts scan image, from the first time
Begin the backlight that n-th of region on the liquid crystal display panel is lighted after postponing for the secondth time.
8. device according to claim 7, which is characterized in that wherein:
The first time is calculated using the following equation: (line scan speed × screen resolution/n)+liquid crystal response time；
Second time is calculated using the following equation: (1/ frame frequency)-(line scan speed × screen resolution/n)-liquid crystal response
Time.
9. a kind of computer readable storage medium, is stored thereon with computer program, which is characterized in that the program is held by processor
The step of any one of claim 1-4 the method is realized when row.
10. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor realizes any one of claim 1-4 the method when executing described program
Step.
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| CN110706658A (en) * | 2019-09-29 | 2020-01-17 | 苏州佳世达电通有限公司 | Backlight scanning type display method and backlight scanning type display system |
| CN112530375A (en) * | 2020-12-02 | 2021-03-19 | 福州京东方光电科技有限公司 | Driving method of display device, display device and storage medium |
| CN113362776A (en) * | 2021-06-30 | 2021-09-07 | 北京京东方光电科技有限公司 | Field sequence display device, control method and display equipment |
| TWI757000B (en) * | 2020-12-11 | 2022-03-01 | 緯創資通股份有限公司 | Liquid crystal display and image display method |
| CN114327336A (en) * | 2021-12-28 | 2022-04-12 | 深圳Tcl新技术有限公司 | Picture display control method and device, electronic equipment and computer storage medium |
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| CN115565498A (en) * | 2022-11-09 | 2023-01-03 | 惠科股份有限公司 | Driving method, driving device, display panel and storage medium |
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