CN109727584A - A kind of same screen aniseikania display device using direction backlight - Google Patents
A kind of same screen aniseikania display device using direction backlight Download PDFInfo
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- CN109727584A CN109727584A CN201811545970.4A CN201811545970A CN109727584A CN 109727584 A CN109727584 A CN 109727584A CN 201811545970 A CN201811545970 A CN 201811545970A CN 109727584 A CN109727584 A CN 109727584A
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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
- 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
- G09G3/36—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 using liquid crystals
Abstract
A kind of same screen aniseikania display device using direction backlight, including display screen and back light part.The pixel array of display screen includes multiple pixel columns arranged in the horizontal direction, when work, display picture by frame by frame, every frame exports in a manner of row scanning pixel-by-pixel；The pixel array of display screen is at least defined there are two the row grouping arranged in the horizontal direction, and the grouping of each row is made of multiple successively adjacent pixel columns；Any row is grouped, in the duration of any frame, defining row grouping, there is the period of active scan line to forbid the period for first, and the time allows the period for first in frame thereafter；Back light part includes at least two backlight groups, and backlight group is corresponding with row grouping, and shining can be individually controlled to invest first ken or second ken；Any row is grouped, within its first permission period, corresponding backlight group shines and invests the first or second ken.This display device can not only solve the problems, such as that above-mentioned image is harassed, and also be not in black surround, and the brightness of display device is also easy to improve.
Description
Technical field
It is especially a kind of using the same screen aniseikania display device for being directed toward backlight the present invention relates to a kind of display device, belong to
Field of display technology.
Background technique
Using the same screen aniseikania display device for being directed toward backlight, different images can be projected to the different kens (visual angle area
Domain), the demand of different images is watched on the screen at the same in the people of the different kens respectively to meet；In addition to this, when its different shadow
When being designed to corresponding with the images of left and right eyes of people respectively as two kens projected, this display device can also be achieved naked eye
The display function of 3D.
This display device is usually that it is i.e. controllable to be directed toward backlight plus being directed toward what backlight was constituted by TFT liquid crystal display
It, which shines, invests the backlight of the different kens.The pixel array of liquid crystal display is generally divided into multiple pixel columns and (corresponds to TFT circuit
Multiple driving lines), when work, display picture is output in pixel array in a manner of frame by frame, and each frame then using sweeping line by line
The mode retouched is realized --- when some pixel column is arrived in scanning, which is kept previous
Frame data can just be brushed off and instead of the data of present frame.
This display device is usually each frame for exporting liquid crystal display, is alternately divided into different ken frames,
It is loaded into the picture of the different kens in different ken frames, and controls and is directed toward backlight different time corresponding to different ken frames
It is interior, light is invested to the different kens, is achieved in the function that different images is projected to the different kens.
However, within the most of the time, real-time pictures are all front and back two according to the above-mentioned working method of liquid crystal display
Frame and the picture deposited, active scan line front is the picture of former frame, and rear is the picture of a later frame.It is apparent that working as front and back
When two frames are respectively different ken frames, two pictures for adhering to the different kens separately constitute one and obscure picture, no matter refer at this time
For the light projection that supports or opposes to any one ken, the content for obscuring another ken in picture can all harass this ken image projected
In.
To solve the above problems, it has been proposed that, one piece is marked at the edge of picture and stays black region, corresponds to some edges
Pixel column only until active scan line, which is in, stays black region, is just opened during progressive scan and is directed toward backlight, by
This, which is avoided, there is the case where obscuring picture in the opening time of backlight, solves and obscures picture and cause what image harassed to ask
Topic.However, this method not only increases black surround, reduce the display area of display device, and the opening time of backlight is only
Active scan line is in the very short time of fringe region, so that the brightness of display device is difficult to improve, it is not a kind of perfect
Solution.
Summary of the invention
It is an object of the present invention to provide a kind of using the same screen aniseikania display device for being directed toward backlight, can not only solve above-mentioned
The problem of image is harassed also is not in black surround, and the brightness of display device is also easy to improve, and used technical solution is as follows:
A kind of same screen aniseikania display device using direction backlight, including display screen and back light part, the back light part setting is aobvious
Display screen rear, define first ken and second ken be respectively may be viewed by two sets of the display device it is arranged side by side in the horizontal direction
Different perspectives region, it is characterized in that:
The pixel array of the display screen includes multiple pixel columns arranged in the horizontal direction, when the display screen works,
Display picture by frame by frame, every frame pixel-by-pixel row scanning in a manner of export；
The pixel array of the display screen is at least defined there are two the row grouping arranged in the horizontal direction, and each row is grouped by more
A successively adjacent pixel column is constituted；
Any row is grouped, in the duration of any frame, defining row grouping to have the period of active scan line is to belong to this
Row grouping first is forbidden the period, and forbids the period as section at the beginning of frame using first, and the time is belongs to this in frame thereafter
The first of row grouping allows the period；
The back light part includes at least two backlight groups arranged in the horizontal direction, and the backlight group and row grouping are opposite
It answers, shining can be individually controlled to invest first ken or second ken；
For any row be grouped, its first allow period in, corresponding backlight group shine and invest first ken or
Second ken.
Specifically, the display screen is generally the transmissive liquid crystal display screen for using tft array circuit drives comprising by
The pixel array that multiple pixel columns are constituted.The pixel column arranges in the horizontal direction, i.e., the pixel column of display screen is along Vertical Square
To extension, and arrange one by one in the horizontal direction.Multiple pixels on each pixel column are connected to by the grid of its TFT device
The same of TFT circuit drives line, and at work, within the time of a frame, each pixel column is successively gated (choosing to display screen
Apply gate voltage on the logical corresponding driving line of pixel column) to be scanned operation, the active scan line (pixel being strobed
Row) data (voltage signal) can be written by data line (connecting with the source electrode of pixel TFT device), thus it is changed its pixel
Transmitance, realize the write-in of new picture；The pixel column not being scanned, pixel keeps primary voltage, so that original picture is able to
It keeps.
The pixel column of the display screen arranges in the horizontal direction, its display picture scanning direction is horizontal as a result, such as
From left to right or from right to left.
In the course of work of display screen, the concept of frame can be used to indicate that each pixel column of pixel array is successively scanned
One time, thus pixel array is written into the process of a picture；For some pixel column, frame can also be used to indicate the picture
Plain row write enters and keeps a cycle of data；And for a line grouping, generally first pixel can be grouped with the row
The time point that row is scanned is the starting point of its frame, when the time point being scanned with the row first pixel column of grouping is its frame
Starting point when, be generally to forbid the period as section at the beginning of frame using first.The frame frequency of the display screen is generally in 40Hz
Between 150Hz, typically 60Hz, corresponding frame time is about 16.6ms.
What the row grouping was made of multiple neighbouring, continuously arranged pixel columns in display screen certain level position
Set；In general, each pixel column at least belongs to a row grouping, so that the union of each row grouping constitutes display screen
Entire pixel array.The quantity of the included pixel column of each row grouping can be equal or different, designs for convenience, general excellent
The quantity for the pixel column for selecting the grouping of each row to include is equal or an only poor pixel column (when pixel column can not equal timesharing).
After definition trip grouping, in any frame, display screen is to the scan operation of each pixel column inherently at certain
A period scanning is grouped to some row, so that row grouping has active scan line, thus can define the period is to belong to the row
The first of grouping forbids the period；To forbid in frame after the period in the time first, row grouping will not be scanned, by
This, forbids the period as section at the beginning of a frame using first, and can define the time in frame thereafter is belong to row grouping first
Allow the period, allow in the period first, movable scan line is not present in row grouping.Put aside the liquid crystal molecule response time
Influence, forbid in the period first, since there are active scan line, two frames of front and back that the pixel of row grouping saves simultaneously are deposited
Obscure picture (assuming that the picture of two frame of front and back is different ken pictures), and allow in the period first, since there is no activity
Scan line, what the pixel of row grouping saved is the non-aliased picture of same frame.In addition to this, the first permission period may also be understood to be
Scanning of a display is grouped to other rows, rather than the time slot occurred when current row grouping.
The backlight group is generally in the horizontal direction side by side to constitute the back light part, and each backlight group is as luminous independence
Unit, shining independent control and can generally not interfere with each other respectively.Backlight group is corresponding with row grouping, in general, works as back
When light portion and display screen mutually become placed against, it can determine what backlight group and row were grouped from the corresponding relationship of its body position
It is corresponding；Or more accurately, when some pixel columns of some row grouping (the generally intermediate pixel column of row grouping) only have some
When the light of backlight group (rather than other backlight groups) is irradiated to, i.e., it is believed that row grouping is closed with the backlight group there are corresponding
System.
For the backlight group, as long as it shines, first and second the invested ken is distinct, i.e., it is believed that the backlight group
Have the function of being directed toward backlight；In addition to this, the light for generally requiring backlight group to be issued can be irradiated to it and correspond to row grouping
Each pixel (certain pixel is irradiated to by certain backlight group, i.e., the light of the backlight group can be transmitted through the pixel to constitute image).
Any direction backlight technology can be used to realize in the direction-pointing function of backlight group, shine can be diverging light, directional light or
Converged light.For example, the backlight group includes that (such as multiple positions are or not the variable light emitting device of luminous position in a concrete scheme
With, can the luminous LED light of independent control) and certain optical lens (such as cylindrical lenses, Fresnel Lenses), pass through optical texture
Design, can control its different location on different time shine, and reflected by optical lens and invest the first or second regard
Domain.In the present specification, it is only necessary to fully technical solution of the present invention can be illustrated using first and second ken, still,
The backlight group can also be designed as that light can be invested to more kens except first and second ken.
The direction of each backlight group of back light part shines, the synchronization signal or touching that can be generally provided according to front-end circuit or display screen
It signals to be controlled.For example, can according to certain sync waveform (such as with the sync waveform of display screen frame frequency same frequency) plus
On the time-difference parameter (can according to forbid the period, period, the conditions such as ken frame sequential is allowed to calculate) that sets controlled
System；In another example the touching that the trigger signal that can be exported according to circuit of display driving, such as scanning to corresponding row issue when being grouped
It signals, to control shining for backlight group.Due to allowing in the period first, what row grouping saved is the non-aliased picture of same frame
Face is grouped any row, so that its corresponding backlight group is shone within its first permission period and invests first ken or second
The ken is generally avoided that the picture that will be obscured is cast out and image is caused to harass.
In a preferred embodiment of the invention, the quantity of the row grouping is not less than 3；It is further preferred that the row point
The quantity of group is not less than 5.The definition for allowing the period according to first improves the quantity of row grouping, can generally make each row grouping
First allow the period shared within the time of a frame ratio it is longer, thus can extend the fluorescent lifetime of backlight group, improve display
The brightness of device.
In a preferred embodiment of the invention, for any backlight group, corresponding to the first of row grouping at it allowed in the period,
Its fluorescent lifetime shorter than 60% the first does not allow the period, thus can guarantee the brightness of display device.
In another preferred embodiment of the invention, for any backlight group, can also correspond to the first of row grouping at it allows
Its fluorescent lifetime is adjusted in period, to change the brightness of display device.
In a preferred embodiment of the invention, for any backlight group, when it corresponds to belonging to row grouping first and forbids
It does not shine in section, is thus conducive to that the picture that will be obscured is avoided to cast out.
In a preferred embodiment of the invention, when the response time of the display screen is shorter than the first permission of any row grouping
Section is grouped any row, and the front end for being defined on its first permission period removes the remaining period after the response time and is
Its second permission period, only allow in the period second, the backlight group of corresponding row grouping just shines and invests described first
The ken or second ken.Can avoid as a result, by liquid crystal display response it is relatively slow caused by obscure picture and cast out to be formed and harass
Image.The response time of the display screen can generally be set according to the type of display screen, for example, for TN mode, IPS
Or the liquid crystal display of VA mode, response time can respectively preferably be taken as 2ms 8ms, 4ms 12ms or 10ms
15ms。
In a preferred embodiment of the invention, when the response time of the display screen is shorter than the first permission of any row grouping
Section can define a perdurabgility, and the perdurabgility is shorter than the response time；For any row be grouped, be defined on its first
The remaining period after allowing the front end of period to remove between the response, then in its back-end plus obtained by the perdurabgility
Period, be its second allow period (forbidding the period in the part first that perdurabgility occupies next frame), only second
Allow in the period, the backlight group of corresponding row grouping just shines and invests first ken or second ken.In general, institute
State response time of the perdurabgility no more than 30%.Not only can avoid as a result, by liquid crystal display response it is relatively slow caused by obscure picture
Face, which casts out to be formed, harasses image, and be utilized time that next frame picture liquid crystal not yet responds (i.e. the continuity when
Between) the permission period of Lai Yanchang second, be conducive to the brightness for further increasing display device.
In a preferred embodiment of the invention, the pixel column for preferably belonging to any row grouping is not belonging to another row grouping, by
Without overlapping, each pixel column and row grouping have clearly corresponding relationship for this each row grouping, are conducive to the simplification in design.
In a preferred embodiment of the invention, two rows grouping that at least certain is adjacent can be set and there is overlapping, overlapping part
Pixel column belong to adjacent two rows grouping.Specifically, mutually harass when two adjacent backlight groups exist, i.e., one of them
The luminous partial pixel row for being irradiated to the grouping of row corresponding to another backlight group of backlight group, especially in the pixel column of intersection
When, it is overlapping that its corresponding two adjacent rows grouping presence can be set, and the pixel column of overlapping part at least can be by two backlights
The pixel column that group is all irradiated to, the definition for forbidding the period according to first as a result, when the pixel column of scanning of a display to overlapping part
When, the grouping of two row is forbidden in the period all in respective first, permits in setting backlight group in the first permission period or second
Perhaps it in the case where just shining in the period, avoids image caused by adjacent backlight group is mutually harassed and harasses.
Compared with prior art, it is had the advantage that provided by the invention with screen aniseikania display device
The pixel column of display screen is defined as the grouping of at least two rows, the pixel column of display screen is in scanning as a result, for any
A row grouping occurs allowing period (not considering liquid crystal response) or the second permission period (considering liquid crystal response) as first
Time slot；Backlight is divided at least two backlight groups corresponding with row grouping, any one row is grouped, enables its corresponding
Backlight group allows to carry out being directed toward in the period in the first or second to shine, and is generally avoided that the picture that will be obscured is cast out and is caused
Image is harassed.This display device, by it is multiple can independent control backlight group come carry out be directed toward shine, utilize display pair
During each pixel column carries out progressive scan operation, wheel scan flow is grouped to each row, and is grouped to be formed in other rows
Time slot dexterously avoids image and harasses as the luminous opportunity for being directed toward backlight, be not required to reserve for picture black surround and
It ensure that the fluorescent lifetime of backlight group, the brightness of display device thus can be improved.
Below by way of attached drawing and embodiment, the following further describes the technical solution of the present invention.
Detailed description of the invention
Fig. 1 is the shape and row grouping schematic diagram of the display device of embodiment one；
Fig. 2 is the composition schematic diagram of the display device of embodiment one；
Fig. 3 is the display device of embodiment one, and the first of each row grouping forbids the period and first to allow period schematic diagram, horizontal
Coordinate representation time, ordinate indicate that pixel column, oblique line indicate the position of active scan line；
Fig. 4 is that the direction backlight of the display device of embodiment one projects schematic illustration；
Fig. 5 is the display device of embodiment one, and image projects schematic diagram, the A time in corresponding diagram 3；
Fig. 6 is the display device of embodiment one, and another image projects schematic diagram, the B time in corresponding diagram 3；
Fig. 7 is the display device of embodiment two, and the first of each row grouping forbids the period and second to allow period schematic diagram, horizontal
Coordinate representation time, ordinate indicate that pixel column, oblique line indicate the position of active scan line；
Fig. 8 is the display device of embodiment one, and the first of each row grouping forbids the period and second to allow period schematic diagram, horizontal
Coordinate representation time, ordinate indicate that pixel column, oblique line indicate the position of active scan line；
Fig. 9 is the shape and row grouping schematic diagram of the display device of example IV；
Figure 10 is the display device of example IV, and the first of each row grouping forbids the period and first and second to allow period schematic diagram,
Its abscissa indicates the time, and ordinate indicates that pixel column, oblique line indicate the position of active scan line.
Specific embodiment
Embodiment one
As shown in Figure 1 and Figure 2, using the same screen aniseikania display device 100 for being directed toward backlight, including display screen 10 and back light part 20, back
For the setting of light portion 20 at 10 rear of display screen, first ken 101 and second ken 102 are respectively that may be viewed by the two of display device 100
Cover different perspectives region arranged side by side in the horizontal direction.
Display screen 10 is a transmissive liquid crystal display screen for using tft array circuit drives comprising 1920 (or M)
Pixel array 11 made of vertical pixel row 111 arranges, driving line (nothing is drawn in figure) phase of pixel column and display TFT circuit
It is corresponding.
When display screen 10 works, display picture includes first and second for investing first and second ken 101,102 respectively
Picture, display screen 10 export frame by frame, and frame rate is 60Hz (40Hz 150Hz), the when a length of T of frame, frame be divided into when
Between upper alternately output the first and second ken frame 131,132, the first and second picture is loaded into the first and second ken frame 131,132 respectively
On.
Either the first ken frame 131 or the second ken frame 132, scanning, write-in of every frame by TFT circuit to pixel column
It forms, and scanning mode is progressive scan mode continuously, at the uniform velocity, from right to left.
As shown in Figure 1, the pixel array 11 of display screen 10 is divided into five row groupings 14 arranged from right to left, each
Row grouping 14 includes 384 (or M/5,1+M/5 and round numbers) a continuously arranged pixel columns.
As shown in figure 3, the time being scanned with row first pixel column of grouping is the row point for any row grouping 14
(that there are certain times is poor for the frame starting point for grouping of not going together, is scanned with first pixel column of pixel array for the frame starting point of group
Time point, the frame starting point of five rows grouping was respectively as follows: 0,0.2T, 0.4T, 0.6T, 0.8T, and each below as benchmark
It is using the frame starting point of row grouping itself as benchmark in the description of a period), in the duration T of frame, with activity scanning
The period of row 111 ' (oblique line and Fig. 5 in Fig. 3, shown in 6) is 0 T/5, and defining the period is first to forbid the period；And
In the period of T/5 T, do not have active scan line, defining the period was the first permission period, and first allows the period as a result,
Occupy the duration of respective frame 80%, and first forbids the period only to account for the duration of respective frame 20%.
As shown in figure 3, considering point of upper first and second ken frame 131,132, for any row grouping 14, can further determine
Justice: it is T that the first of the first ken frame, which forbids the period,10, the first ken frame first allow the period be T11, the second ken frame
One forbids the period for T20, the second ken frame first allow the period be T21。
As shown in figure 4, back light part 20, which includes five, is grouped 14 corresponding backlight groups 21, each backlight group 21 with row respectively
The first illuminator 211, the second illuminator 212 and cylindrical lenses 213 are designed with, the first and second illuminator 211,212 is for by certain
White LED lamp group through optics diffusion form vertical stripe illuminator, 213 first focal plane of cylindrical lenses is closely set
Except and the optical axises of relative lens 213 be respectively provided with the offset to right and left, thus its folding to shine by cylindrical lenses 213
After penetrating, first ken 101 and second ken 102 can be projected respectively, lighted respectively by the driving circuit of backlight group 20
First illuminator 211 or the second illuminator 212, can respectively by the light emitting control of backlight group 21 be invest first ken 101 or
First ken 102.
As shown in Figure 5, Figure 6, display device 100 at work, synchronizes letter by what front-end circuit (or display screen) provided
Number (or trigger signal) controls shining for each backlight group 21, corresponds to row grouping 14 at it and is in T10And T20When, keep backlight group
21 do not shine；Row grouping 14, which is corresponded to, at it is in T11When, the first illuminator 211 is lighted, so that it is shone and invests first ken 101；
And row grouping 14 is corresponded at it and is in T21When, the second illuminator 212 is lighted, so that it is shone and invests second ken 102.Each row point
Group 14 and its 21 concurrent working of backlight group, so that display device 100 realizes that the same screen aniseikania of whole secondary picture is shown.
Assuming that the response time of liquid crystal display 10 can be ignored, any row is grouped, in its T10And T20When, although
Row grouping 14 exist be made of the first and second picture obscure picture, but its corresponding backlight group 21 does not shine at this time, because without
It can form image obscuring picture and casting out and harass；In its T11Or T21When, there is no the first and second pictures to constitute for row grouping 14
Obscure picture, thus its corresponding backlight group 21 according to corresponding ken frame carry out be directed toward shine, image will not occur and alter
It disturbs.
In addition to this, due to T12、T22Duration all occupy the 80% of respective frame duration, left for backlight group 21 carry out it is luminous
Time it is very abundant, in general, the fluorescent lifetime of backlight group 21 is controllable to T11Or T2160% or more of duration；Alternatively,
It can also be by changing backlight group 21 in T11Or T21Interior fluorescent lifetime, to control the display brightness of display device 100.
Embodiment two
On the basis of example 1, it is contemplated that the influence of 10 response time of liquid crystal display and shorten each backlight group 21 shine
Time, avoid the response of display screen 10 it is relatively slow caused by harass image, then constitute the embodiment of the present invention two.
As shown in fig. 7, the response time of display screen 10 is Tlcd(the case where being TN or IPS mode for liquid crystal display, TlcdIt can
It chooses in the range of 2ms 8ms, 4ms 10ms, or is obtained by the measurement of used liquid crystal display 10 respectively, in display screen 10
Frame rate be < 60Hz in the case where, be generally shorter than any row grouping 14 first allows the period, for responding slower VA
Frame rate can be reduced to 40Hz, to guarantee T by mode liquid crystal screenlcdShorter than the first of any row grouping 14 allows the period).
For any row grouping 14, the front end for being defined on its first permission period removes TlcdRemaining period (T/5+ afterwards
Tlcd) T is its second permission period, and is set, and is only allowed in the period second, the backlight group 21 of corresponding row grouping is
It shines and invests first ken 101 or second ken 102.
Point for considering upper first and second ken frame 131,132, is grouped any row, can further define: the first ken frame
The second of 131 allows the period to be T12, the second ken frame 132 second allow the period be T22.It is grouped in the corresponding row of backlight group 21
14 are in T12When, the first illuminator 211 is lighted, so that it is shone and invests first ken 101；And row grouping 14 is corresponded at it and is in
T22When, the second illuminator 212 is lighted, so that it is shone and invests second ken 102；In other frame times, backlight group 14 does not shine.
Embodiment three
On the basis of example 2, in order to widen for the second permission period, extend the fluorescent lifetime of backlight group, improve display device
Brightness, can define a perdurabgility Tlong, set Tlong<30%Tlcd,
As shown in figure 8, redefining for any row grouping 14 and removing T in the front end of its first permission periodlcdIt is remaining afterwards
Period, its rear end add perdurabgility TlongFor its second permission period, i.e. (T/5+Tlcd)〜(T+Tlong) it is its second permission
Period, and set, only allow in the period second, the backlight group 21 of corresponding row grouping 14 just shines and invests described first
The ken 101 or second ken 102.
Point for considering upper first and second ken frame 131,132, is grouped any row, can further redefine: the first view
The second of domain frame allows the period to be T12, the second ken frame second allow the period be T22.The row grouping corresponding to backlight group 21
14 are in T12When, the first illuminator 211 is lighted, so that it is shone and invests first ken 101；And row grouping is corresponded at it and is in T22
When, the second illuminator 212 is lighted, so that it is shone and invests second ken 102；In other frame times, backlight group 21 does not shine.
Embodiment three not only can avoid by the response of liquid crystal display 10 it is relatively slow caused by obscure picture and cast out to be formed and alter
Image is disturbed, and time (i.e. perdurabgility) Lai Yanchang second that next frame picture not yet responds is utilized to allow the period, had
Conducive to the brightness for further increasing display device 100.
Example IV
As shown in figure 9, on the basis of embodiment one or two, each row grouping 14 is redefined, so that any adjacent two
All there is overlapping part 143 in row grouping 141,142, the pixel column 112 of overlapping part 143 belongs to adjacent two rows grouping, then
Constitute the embodiment of the present invention four.
As shown in Figure 10, in concrete scheme, any two neighboring row is grouped the overlapping pixels row 112 between 141,142
Quantity be 96, the pixel column of five rows grouping is respectively the 1st 432 row, the 337th 816 row, the 721st 1200, the
1105 1584 rows and the 1489th 1920 row forbid period, first to allow period and the in the row grouping of head and the tail, first respectively
Two allow the period to be respectively 0 0.225T, 0.225T T and (0.225T+Tlcd)〜T；The first of intermediate three rows grouping is forbidden
Period, first allow the period and second that the period is allowed to be respectively 0 0.25T, 0.25T T and (0.25T+Tlcd)〜T.(more than
The description of each period is the frame starting point using row grouping itself as benchmark, and there are a timings for the frame starting point of each row grouping
Between it is poor, using the time point that first pixel column of pixel array is scanned as benchmark, five rows grouping from right to left
Frame starting point is respectively as follows: 0,0.175T, 0.375T, 0.575T, 0.775T)
Mutually harass when two adjacent backlight groups 211,212 exist, one of the luminous of backlight group 211 or 212 is irradiated to
The grouping 142 or 141 of row corresponding to another backlight group 212 or 211 is in the partial pixel row 113 of intersection, if pixel column
113 quantity is less than 96, is grouped 14 first settings for forbidding the period according to each row, when overlapping pixels row is arrived in the scanning of display 10
112, especially the pixel column 113 of intersection when, backlight group 211,212 does not shine, and only when each row grouping 142 and 141
Being respectively at respective first allows period (response for not considering display) or the second permission period (to consider the sound of display
Answer) when, so that backlight group 211,212 is carried out direction and shine, thus avoids image caused by adjacent backlight group light is harassed and alter
It disturbs.
In addition, it should be noted that, the specific embodiments described in this specification, each section title etc. can not
Together, the equivalent or simple change that all structure, feature and principles described according to the invention patent design are done, is included in the present invention
In the protection scope of patent.Those skilled in the art can do described specific embodiment various each
The mode that the modify or supplement or adopt of sample is similar substitutes, and without departing from structure of the invention or surmounts the claims
Defined range, is within the scope of protection of the invention.
Claims (11)
1. a kind of using the same screen aniseikania display device for being directed toward backlight, including display screen and back light part, the back light part setting exists
Display screen rear, defining first ken and second ken is respectively that may be viewed by two sets of the display device in the horizontal direction simultaneously
The different perspectives region of column, it is characterized in that:
The pixel array of the display screen includes multiple pixel columns arranged in the horizontal direction, when the display screen works,
Display picture by frame by frame, every frame pixel-by-pixel row scanning in a manner of export；
The pixel array of the display screen is at least defined there are two the row grouping arranged in the horizontal direction, and each row is grouped by more
A successively adjacent pixel column is constituted；
Any row is grouped, in the duration of any frame, defining row grouping to have the period of active scan line is to belong to this
The first of row grouping is forbidden the period, and forbids the period as the beginning of frame using first, and the time is to belong to the row point in frame thereafter
The first of group allows the period；
The back light part includes at least two backlight groups arranged in the horizontal direction, and the backlight group and row grouping are opposite
It answers, shining can be individually controlled to invest first ken or second ken；
For any row be grouped, its first allow period in, corresponding backlight group shine and invest first ken or
Second ken.
2. display device as described in claim 1, it is characterized in that: the quantity for the pixel column that each row grouping includes is equal or only poor
One pixel column.
3. display device as described in claim 1, it is characterized in that: the quantity of the row grouping is not less than 3.
4. display device as claimed in claim 3, it is characterized in that: the quantity of the row grouping is not less than 5.
5. display device as described in claim 1, it is characterized in that: for any backlight group, the first of its correspondence row grouping
Allow in the period, fluorescent lifetime shorter than 60% the first does not allow the period.
6. display device as described in claim 1, it is characterized in that: for any backlight group, the first of its correspondence row grouping
Allow to adjust its fluorescent lifetime in the period, to change the brightness of display device.
7. display device as described in claim 1, it is characterized in that: for any backlight group, belonging to its correspondence row grouping
First forbids its in the period not shine.
8. display device as described in claim 1, it is characterized in that: the response time of the display screen is shorter than any row grouping
First allows the period, and any row is grouped, and is defined on institute after its first front end removing described response time for allowing the period
The surplus period is its second permission period, is only allowed in the period second, and the backlight group of corresponding row grouping just shines and throws
To first ken or second ken.
9. display device as described in claim 1, it is characterized in that: the response time of the display screen is shorter than any row grouping
First allows the period, defines a perdurabgility, and the perdurabgility is shorter than the response time；Any row is grouped, definition
The remaining period after the front end of its first permission period removes between the response, then the continuity is added in its back-end
The time obtained period is its second permission period, is only allowed in the period second, the backlight group of corresponding row grouping
It just shines and invests first ken or second ken.
10. display device as described in claim 1, it is characterized in that: the pixel column for belonging to any row grouping is not belonging to another row
Grouping.
11. display device as described in claim 1, it is characterized in that: at least certain adjacent two rows grouping exists overlapping, overlaps
Partial pixel column belongs to adjacent two rows grouping.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018115328074 | 2018-12-14 | ||
| CN201811532807 | 2018-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109727584A true CN109727584A (en) | 2019-05-07 |
Family
ID=66296170
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811545970.4A Withdrawn CN109727584A (en) | 2018-12-14 | 2018-12-18 | A kind of same screen aniseikania display device using direction backlight |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109727584A (en) |
| WO (1) | WO2020118964A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020118964A1 (en) * | 2018-12-14 | 2020-06-18 | 汕头超声显示器技术有限公司 | Same-screen different-image display apparatus using directional backlighting |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3280307B2 (en) * | 1998-05-11 | 2002-05-13 | インターナショナル・ビジネス・マシーンズ・コーポレーション | Liquid crystal display |
| CN101170709B (en) * | 2006-10-23 | 2010-12-01 | 奇美电子股份有限公司 | Method and display for controlling multiple display area on display panel |
| CN101393722B (en) * | 2007-09-19 | 2012-11-21 | 奇美电子股份有限公司 | Controlling method for backlight module |
| CN101650922B (en) * | 2009-09-04 | 2011-10-05 | 青岛海信电器股份有限公司 | Backlight scanning control method and device of 3D liquid crystal television |
| CN102768823B (en) * | 2011-05-04 | 2015-09-16 | 上海中航光电子有限公司 | Method for controlling backlight thereof, device and 3D display system |
| TWI506612B (en) * | 2011-05-31 | 2015-11-01 | Au Optronics Corp | Backlight module, display system and driving method of backlight module |
| CN108986752B (en) * | 2018-08-31 | 2020-12-01 | 厦门天马微电子有限公司 | Display device and control method thereof |
| CN109727584A (en) * | 2018-12-14 | 2019-05-07 | 汕头超声显示器技术有限公司 | A kind of same screen aniseikania display device using direction backlight |
-
2018
- 2018-12-18 CN CN201811545970.4A patent/CN109727584A/en not_active Withdrawn
-
2019
- 2019-03-27 WO PCT/CN2019/079816 patent/WO2020118964A1/en active Application Filing
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020118964A1 (en) * | 2018-12-14 | 2020-06-18 | 汕头超声显示器技术有限公司 | Same-screen different-image display apparatus using directional backlighting |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020118964A1 (en) | 2020-06-18 |
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