CN108806613A - One kind being based on the cascade screen-refresh frame per second lifting system of screen and method - Google Patents
One kind being based on the cascade screen-refresh frame per second lifting system of screen and method Download PDFInfo
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- CN108806613A CN108806613A CN201810328597.0A CN201810328597A CN108806613A CN 108806613 A CN108806613 A CN 108806613A CN 201810328597 A CN201810328597 A CN 201810328597A CN 108806613 A CN108806613 A CN 108806613A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/04—Display device controller operating with a plurality of display units
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- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention discloses a kind of the system and method that screen inherently refreshes frame per second is improved by cascading screen.By a identical completely overlapped fittings of backlight transmission formula screen of M (M >=2), then each moment target image pixel transmitance is decomposed to the transmitance of each sub-screen pixel, the final screen-refresh frame per second that cascades is form sub-screen M times.The present invention has feature simple in structure, at low cost.
Description
Technical field
The invention belongs to image display arts, are inherently refreshed to improve screen by cascading screen more particularly, to one kind
The system and method for frame per second.
Background technology
The refreshing frame per second of screen refers to the number of screen interior load image per second.It is by quick in the short time that video, which is shown,
Load the realization of several consecutive images.Screen-refresh frame per second is higher, image transition more naturally, dynamic menu shows more is not easy to be distorted,
Human eye viewing is more comfortable.
Patent CN105867755A discloses a kind of method and terminal device improving picture fluency, the method packet
It includes：Information determines the generation frequencies of VSYNC signals to terminal device depending on the user's operation；The terminal device determines the frequency
With the difference of the upper limit of the refreshing frequency of the device end screen；The terminal device increases newly according to difference determination
The frequency of VSYNC signals, so that VSYNC signals that the terminal device is generated by information depending on the user's operation and described new
The VSYNC signals of increasing carry out frame updating.
Although above-mentioned patent can improve picture refreshing frequency to a certain extent, it can not realize that refreshing frequency doubles
Function.
Invention content
1, goal of the invention.
The present invention proposes one kind based on the cascade screen-refresh frame per second lifting system of screen and method, it can be achieved that cascade screen
The function of curtain video output refreshing frequency multiplication.
2, the technical solution adopted in the present invention.
The present invention provides a kind of the system and method that screen inherently refreshes frame per second, hardware are improved by cascading screen
On by a identical completely overlapped fittings of backlight transmission formula screen of M (M >=2), then by each moment target image pixel penetrate
Rate decomposes the transmitance of each sub-screen pixel, and the final screen-refresh frame per second that cascades is form sub-screen M times.
Further in specific implementation, M selected screen is completely the same, and pixel is completely superposed.
Further in specific implementation, the Asynchronous loading image of sub-screen is formed, and 1/ (M*N) is divided between the fixed time difference,
Wherein N is that composition sub-screen refreshes frame per second, and M is cascade number of screen.
Further in specific implementation, the light transmittance periodic function of each screen can be expressed from the next.
Wherein T1(t), T2(t)…TM(t) transmitance at some pixel P, T in each screen of t moment are respectively represented0
(t) transmitance of cascade screen final output is indicated；T at the time of initial t=01=B1, T2=C1, B1, C1 are known first
Beginning value.
Further in specific implementation, if the sub-screen being calculated is more than 1 through rate score, by this moment screen
Light transmittance be set as 1.
3, beneficial effects of the present invention.
By means of the invention it is also possible to ensure to export the effect that video pixel value i.e. screen transmissivity variation is gentle gradual change
Fruit simultaneously, realizes the effect of screen refresh frequency multiplication, and its is simple in structure, cost is relatively low.
Description of the drawings
Fig. 1 is double screen cascade structure schematic diagram.
Fig. 2 is cascade screen pixel P total light transmittances T0The schematic diagram of sinusoidal variation is pressed at any time.
Fig. 3 is that twin-stage joins screen within a certain period of time, each sub-screen light transmittance T1, T2And total output transmitance T0Pair
Distribution should be put.
Fig. 4 cascades screens within a certain period of time for three, each sub-screen light transmittance T1, T2, T3And total output transmitance T0's
Corresponding points are distributed.
Reference sign：
D1 is backlight transmission formula screen, and D2 is backlight transmission formula screen.
Specific implementation mode
Below in conjunction with the accompanying drawings 1,2,3,4 and 1,2 couple of present invention of table be further described：
Example 1
It is that a kind of cascade of double screen improves the method that indicator screen refreshes frame per second as shown in Figure 1, composition includes backlight
Transmissive viewing screen D1, screen D2.Selected backlight transmission formula screen D1 and D2 is completely the same, and all pixels point is completely superposed and brushes
New frame per second is N, and the duration difference of two screen load images is fixed as 1/2N.Two points for choosing same position on two screens are done
It is described in detail.Point transmitance on screen D1 is T1, and the point transmitance on screen D2 is T2.The output for then cascading screen penetrates
Rate T0 is the product of screen D1 and screen D2 transmitances, i.e., each moment is satisfied by T0=T1*T2.
Double screen cascade result is further analyzed with reference to table 1.
Table 1 is double screen cascade structure each section light transmittance mechanical periodicity table at any time.
Each moment transmitance of display image to be loaded first, that is, cascade screen each moment total transmitance known to T0=A1, A2,
A3 ..., and set t=0 initial time screen D1 transmitance T1=B1, screen D2 transmitance then by formula T2=T0/T1
=A1/B1=C1 is calculated.When t=1/2N (N is each sub-screen refreshing frequency), light transmittance T2 and the last moment of screen D2 keep
The light transmittance of consistent T2=C1, screen D1 calculate gained by formula T1=T0/T2=A2/C1=B2.When t=2/2N, screen D1
Light transmittance T1=B2 be consistent with last moment, the light transmittance of screen D2 is calculated by formula T2=T0/T1=A3/B2=C2
Gained.It is back and forth iterated to calculate with this rule, the transmitance of total cascaded-output is decomposed to the transmitance of each sub-screen.And pass through
Table, which can be seen that final cascade screen frame rate, becomes 2N.
The transmitance value of two screens can be indicated with following formula during above-mentioned realization：
Wherein T1(0) mono- known initialization value of=B1, B1.
Example 2
Analogy example 1 is below described further three cascade modes of screen.Three backlight transmission formula screen D1,
D2 and D3 are completely the same, and it is N, screen screen D1, D2 and D3 load image time that all pixels point, which is completely superposed and refreshes frame per second,
Fixed phase difference 1/3N.Each moment transmitance of display image to be loaded first cascades T0=known to screen each moment total transmitance
A1, A2, A3 ..., and set the initial time screen D1 initial transmissions T of t=01The initial transmission T2 of=B1, screen D2
The transmitance of=C1, screen D3 are then by formula T3=T0/T1/T2=A1/B1/C1 is calculated.When t=1/3N, the light transmittance of screen D1
T1With the light transmittance T of screen D33It is consistent with last moment, the light transmittance of screen D2 is by formula T2=T0/T1/T3=A2/B1/
D1 calculates gained.When t=2/3N, the light transmittance T of screen D22With the light transmittance T of screen D33It is consistent with last moment, screen
The light transmittance of D1 is by formula T1=T0/T2/T3=A3/C2/D1 calculates gained.It is back and forth iterated to calculate, will always be cascaded defeated with this rule
The transmitance gone out decomposes the transmitance of each sub-screen.
Three screens cascade result is further analyzed with reference to table 2.
Table 2 is three screen cascade structure each section light transmittances mechanical periodicity table at any time.
By table as can be seen that finally cascade screen frame rate becomes 3N.
Wherein T1(t), T2(t)…TM(t) transmitance at some pixel P, T in each screen of t moment are respectively represented0
(t) transmitance of cascade screen final output is indicated；T1(0)=B1, T2(0)=C1, B1, C1 are known initialization value.
By said circumstances further genralrlization：
The cascade screen being made of M identical backlight transmission formula screens, all pixels point is completely superposed and refresh frame
Rate is N.This M screen picture load time difference is 1/ (M*N), by the way that the transmitance T0 of total cascaded-output is decomposed each sub-screen
Transmitance T1, T2 ... TM.Final cascade screen frame rate becomes M*N.Each moment screen transmitance variation relation is as follows：
Wherein T1(0), T2(0) ..., TM-1(0) initialization value is B1 respectively, and C1, D1 ... wait the initialization for one group of determination
Constant.
It is to be noted that in actual operation, to ensure that synthesis transmitance meets the setting value needed, above-mentioned formula meter
Obtained transmissivity：T1(t), T2(t) ..., TM(t) numerical value is likely larger than 1 at the time of certain particular iterations, to ensure to close
Rationality needs the value taking 1.
Correcting above-mentioned formula is：
Illustrate the feasibility of the correction formula by taking two pieces of screens cascade as an example below：
The process that video pixel value, that is, screen transmissivity variation is gentle gradual change is exported in reality scene.Here it simulates
Cascade the total output transmitance T of screen0Variation is SIN function, specific as shown in Figure 2.Given screen D1 transmitances T1It is initial
Value is B1=0.5, simulates screen D1 and screen D2 transmitances are as shown in Figure 3 with the situation of change of total transmittance, it is seen that T1And T2It is more
Numerical value is both less than 1 in the case of number, is not constrained by correction formula.And through counting to obtain T only in the case of about 5%1Or T2Equal to 1,
It is normally shown so understanding correction formula in the case of reality output pixel value gentle transition it is considered that having substantially no effect on equipment
Show.
Three pieces of screen cascades are taken to take same method to do further proof the feasibility of correction formula, as a result as schemed
Shown in 4.By statistics it is found that T only in the case of about 10%1, T2Or T3Equal to 1, so understanding correction formula in practical picture
It is normally shown in the case of plain value gentle transition it is considered that still having substantially no effect on equipment.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (10)
1. one kind being based on the cascade screen-refresh frame per second method for improving of screen, it is characterised in that：By M identical backlight transmission formulas
The completely overlapped fitting of screen, wherein M >=2, then by the way that each moment target image pixel transmitance is decomposed each height screen
The transmitance of curtain pixel, the final screen-refresh frame per second that cascades is form sub-screen M times.
2. screen-refresh frame per second method for improving according to claim 1, it is characterised in that：M selected transmissive viewing screen
It is completely the same, and pixel is completely superposed.
3. screen-refresh frame per second method for improving according to claim 1, it is characterised in that：Described forms the different of sub-screen
Load image is walked, and is divided into 1/ (M*N) between the fixed time difference, wherein N is that composition sub-screen refreshes frame per second, and M is cascade number of screen.
4. screen-refresh frame per second method for improving according to claim 1, it is characterised in that the transmitance is decomposed specific
For：Some pixel P at each composition sub-screen same position, light transmittance periodic function can be expressed from the next,
Wherein T1(t), T2(t)…TM(t) transmitance at some pixel P, T in each screen of t moment are respectively represented0(t) table
Show the transmitance of cascade screen final output.
5. screen-refresh frame per second method for improving according to claim 1, it is characterised in that：The light transmittance of each screen cannot
More than 1, if calculated value is more than 1, the light transmittance of this screen is set as 1 at moment.
6. one kind being based on the cascade screen-refresh frame per second lifting system of screen, it is characterised in that：
By M identical completely overlapped fittings of backlight transmission formula screen, wherein M >=2, then by by each moment target image picture
Vegetarian refreshments transmitance decomposes the transmitance of each sub-screen pixel, and the final screen-refresh frame per second that cascades is to form the M of sub-screen
Times.
7. screen-refresh frame per second lifting system according to claim 6, it is characterised in that：M selected transmissive viewing screen
It is completely the same, and pixel is completely superposed.
8. screen-refresh frame per second lifting system according to claim 6, it is characterised in that：Described forms the different of sub-screen
Load image is walked, and is divided into 1/ (M*N) between the fixed time difference, wherein N is that composition sub-screen refreshes frame per second, and M is cascade number of screen.
9. screen-refresh frame per second lifting system according to claim 6, it is characterised in that the transmitance is decomposed specific
For：Some pixel P at each composition sub-screen same position, light transmittance periodic function can be expressed from the next,
Wherein T1(t), T2(t)…TM(t) transmitance at some pixel P, T in each screen of t moment are respectively represented0(t) table
Show the transmitance of cascade screen final output.
10. screen-refresh frame per second lifting system according to claim 6, it is characterised in that：The light transmittance of each screen is not
1 can be more than, if calculated value is more than 1, the light transmittance of this screen is set as 1 at moment.
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| CN201810328597.0A CN108806613B (en) | 2018-04-13 | 2018-04-13 | Screen cascade-based screen refreshing frame rate improving system and method |
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| CN108806613B CN108806613B (en) | 2020-04-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109933383A (en) * | 2019-03-18 | 2019-06-25 | 北京智明星通科技股份有限公司 | Adjust the method and apparatus of game APP operation frame per second |
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