CN101944329A - Method for driving display device - Google Patents
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- CN101944329A CN101944329A CN 200910158742 CN200910158742A CN101944329A CN 101944329 A CN101944329 A CN 101944329A CN 200910158742 CN200910158742 CN 200910158742 CN 200910158742 A CN200910158742 A CN 200910158742A CN 101944329 A CN101944329 A CN 101944329A
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Abstract
The invention provides a method for driving a display device. The display device comprises a first display block, a second display block as well as a first backlight and a second backlight which respectively correspond to the first display block and the second display block. The drive method comprises the following steps: in a first subframe time of a first frame time, the first backlight and the second backlight respectively emit lights with different colors; in a second subframe time of the first frame time, the first backlight and the second backlight respectively emit lights with different colors; and in a third subframe time of the first frame time,the first backlight and the second backlight respectively emit lights with different colors, wherein the first backlight and the second backlight successively emit lights with different colors in the first, second and third subsframes of the first frame time.
Description
Technical field
The present invention relates to a kind of driving method that is used for display device, particularly be used for the driving method of liquid crystal indicator, can solve the look separation problem that is produced when using look preface method.
Background technology
Because light emitting diode (Light Emitting Diode, LED) technology is constantly progressive, its brightness and luminescence efficiency constantly promote, the harmful metal of not mercurous again grade of while, and therefore beginning to replace cold-cathode tube gradually (for example: backlight liquid crystal indicator) becomes display device.Furthermore, because LED comprises the LED that sends Red Green Blue light, and only send white light unlike the traditional cold cathode tube, therefore, liquid crystal indicator uses and comprises the backlight of the LED of red, green, blue as light source, can utilize look preface method (color sequential or flied sequential), light the LED of red, green, blue in turn, the principle of utilizing human eye vision to persist is again carried out mixed light, to demonstrate desired picture.Thus, display panel just no longer needs colored filter, therefore can save suitable cost.
Particularly, its look preface driving method of color order liquid crystal display (or field sequence LCD device) is corresponding respectively three kinds of color pictures or the multiple color subframe of showing in each the subframe time (sub-frame time) in frame time (frame time), for example shown in Figure 1, the red subframe of the first subframe time showing of display screen 11 in first frame time, at the green subframe of the second subframe time showing and at the blue subframe of the 3rd subframe time showing, that is to say that each subframe time all shows the subframe of single kind of color.And by manifesting these red, green and blue look subframes fast enough successively, the audience just can experience the complete picture image of full color.Above-mentioned display device mainly comprises LCD TV (LCD TV), LCD monitor (LCDmonitor), notebook computer (Notebook PC) and consumer electronic product (consumer electronics) etc.These display device all possess the ability that shows animation usually, and for clear and show animation glibly, generally need display frequency to reach 60Hz, promptly show a picture in promptly per 1/60 second.If use look preface method, form because each picture must institute occur successively by three subframes of red, green and blue look, so the frequency of each subframe just reaches 180Hz.
Yet; because in look preface method, red, green and blue look subframe occurs successively, when showing the white object of a high-speed mobile; and its background then so-called " rainbow phenomena " occur or claims " look separation " (color break-up) in the sideline of white object regular meeting when being black.Please refer to Fig. 2, it produces the synoptic diagram of look segregation phenomenon for known technology uses look preface method.The left side figure of Fig. 2 be white object 20 when first frame time, on the display screen 1 of black background, begin high-speed mobile to the right.Right figure then be white object 20 when second frame time, the phenomenon that look separates has wherein just appearred in the position on display screen 1 on the edge of the right and left of white object 20; Blue (Blue) appears in the long and narrow block that Far Left indicates B, cyan (Cyah) then appears in abutting connection with the long and narrow block of the C of the long and narrow block of B, and rightmost indicates the long and narrow block appearance red (Red) of R, yellow (Yellow) then occurs in abutting connection with the long and narrow block of the Y of the long and narrow block of R, the part in the middle of these long and narrow blocks is then kept white.The phenomenon that this look separates concerning the consumer of display quality requirement increasingly stringent, just becomes a kind of defective, also becomes the major issue that display industry needs to be resolved hurrily.
In order to address the above problem, meet the demand in market, team of the present invention reaches and tests many times and improve through deep study and analysis, develops the driving method of brand-new display device finally, and through multiple authentication, can effectively solve the problem that above-mentioned look separates.
Summary of the invention
The invention provides a kind of driving method that is used for display device, can effectively solve the look separation problem that is produced when using look preface method.
The invention provides a kind of driving method of display device, wherein this display device comprises that at least one first shows that block and one second shows block and corresponding with it respectively first backlight and second backlight, this method comprises: first subframe in first frame time makes this first backlight and this second backlight send the light of different colours separately in the time; Second subframe in this first frame time makes this first backlight and this second backlight send the light of different colours separately in the time; And the 3rd subframe in this first frame time is in the time, make this first backlight and this second backlight send the light of different colours separately, wherein, all this in this first frame time first, this second and the 3rd subframe successively send the light of different colours in the time for this first backlight and this second backlight.
According to above-mentioned conception, wherein this display device comprises the color-sequence liquid crystal display device.
According to above-mentioned conception, wherein the light of this different colours is selected from the group that is made up of ruddiness, green glow, blue light, blue or green light, fuchsin light, gold-tinted and white light.
According to above-mentioned conception, wherein said method also comprises: first subframe in second frame time is in the time, make this first backlight and this second backlight send the light of different colours separately, wherein, this first backlight and this second backlight are at least in one of them this first subframe time in this first frame time and successively send the light of different colours in this first subframe time in this second frame time.
According to above-mentioned conception, wherein said method also comprises: first subframe in second frame time is in the time, make this first backlight and this second backlight send the light of different colours separately, wherein, this first backlight and this second backlight are in this first subframe time in this first frame time and all successively send the light of same color in this first subframe time in this second frame time.
According to above-mentioned conception, wherein said method also comprises: first subframe in second frame time is in the time, make this first demonstration block show the black sprite, send the light of non-black with this second backlight, wherein, this second backlight is in this first subframe time in this first frame time and successively send the light of different colours in this first subframe time in this second frame time.
According to above-mentioned conception, wherein said method also comprises: first subframe in second frame time is in the time, make this first demonstration block show the black sprite, send the light of non-black with this second backlight, wherein, this second backlight is in this first subframe time in this first frame time and successively send the light of same color in this first subframe time in this second frame time.
According to above-mentioned conception, wherein this first demonstration block is adjacent with this second demonstration block.
According to above-mentioned conception, wherein this first demonstration block is adjacent with this second demonstration block, and this first frame time is adjacent with this second frame time.
According to above-mentioned conception, wherein the light that sends is white light the first subframe time of this first backlight in this first frame time.
According to above-mentioned conception, wherein this first backlight and this second backlight comprise LED source.
According to above-mentioned conception, wherein this display device also comprises first drive integrated circult and second drive integrated circult, in order to drive this first backlight respectively and this second backlight is luminous.
The present invention provides a kind of driving method of display device in addition, wherein this display device comprises that N shows block and N corresponding with it respectively backlight, wherein N is the integer more than or equal to 2, each frame time of this display device comprises M subframe time at least, this method comprises: make each this backlight, in M the subframe time of same this frame time, send the light of different colours respectively in regular turn; And, make wantonly two these adjacent backlights in arbitrary subframe time of arbitrary this frame time, send the light of different colours respectively.
According to above-mentioned conception, wherein said method also comprises the same subframe time that makes this adjacent frame time of each this backlight in office two, sends the light of same color.
According to above-mentioned conception, wherein said method also comprises the same subframe time that makes this adjacent frame time of each this backlight in office two, sends the light of different colours.
According to above-mentioned conception, wherein said method also comprises the light that makes each this backlight send color inequality in wantonly two of same this frame time adjacent subframe times.
According to above-mentioned conception, wherein each this backlight can send the light of K kind color, and this method also is included in arbitrary this subframe time, and this K kind color is all shown once at least by the backlight of the demonstration block of correspondence.
According to above-mentioned conception, wherein each this backlight can send the light of K kind color, and this method also comprises backlight M the subframe time of this frame time therein that makes each block, and each color that shows K kind color at least once.
According to above-mentioned conception, wherein this display device comprises the color-sequence liquid crystal display device.
According to above-mentioned conception, wherein the light of this different colours is selected from the group that is made up of ruddiness, green glow, blue light, blue or green light, fuchsin light, gold-tinted and white light.
According to above-mentioned conception, wherein M equals K or is the multiple of K.
The driving method of another display device of the present invention, wherein this display device comprises that N shows block and N corresponding with it respectively backlight, wherein N is the integer more than or equal to 2, each frame time of this display device comprises M subframe time at least, this method comprises: in this M the subframe time of first this frame time, in one of them first this subframe time at least, make this N to show that one of them shows black sprite or white sprite to block at least, all the other show that the backlight of block then sends the light of non-black or non-white; And in this first this subframe time, make described a plurality of all the other show in the backlight of blocks that wantonly two adjacent backlights send the light of different colours respectively.
According to above-mentioned conception, wherein in this first subframe time, this N shows to have at least plural demonstration block to show black sprite or white sprite in the block, all the other show that the backlight of blocks then sends the light of non-black or white, and described a plurality of black sprite or white sprite are adjacent one another are or non-conterminous.
According to above-mentioned conception, wherein in each subframe time of each this frame time, one of them shows black sprite or white sprite at least in this N viewing area.
According to above-mentioned conception, wherein described a plurality of M the subframe times of this first this frame time one of them, this N shows that block all shows black sprite or white sprite.
According to above-mentioned conception, wherein each this backlight can send the light of K kind color, and this K kind color do not comprise black or white, and this method also is included in arbitrary this subframe time, and this K kind color is all shown once at least by the backlight of the demonstration block of correspondence.
According to above-mentioned conception, wherein each this backlight can send the light of K kind color, and this K kind color does not comprise black or white, and this method also comprises the backlight that makes each block at M subframe of this first this frame time in the time, show at least in the K kind color each color once.
According to above-mentioned conception, wherein each this backlight can send the light of K kind color, and this K kind color does not comprise black or white, this method also comprises the backlight that makes each block at M subframe of this first this frame time in the time, at least show in the K kind color each color once, and make each block show at least black sprite or white sprite.
According to above-mentioned conception, wherein each this backlight can send the light of K kind color, and this K kind color do not comprise black or white, and this method also comprises makes each this backlight, in M the subframe time of each this frame time, sends the light of different colours respectively in regular turn.
According to above-mentioned conception, wherein M equals K+1 or is the multiple of K+1.
The present invention makes and more understands in depth by following detailed description.
Description of drawings
Fig. 1 uses the driving method synoptic diagram of the display device of look preface method for known technology.
Fig. 2 produces the synoptic diagram of look segregation phenomenon for known technology uses look preface method.
Fig. 3 is the driving method synoptic diagram of the display device of first embodiment of the invention.。
Fig. 4 is the driving method synoptic diagram of the display device of second embodiment of the invention.
Fig. 5 is the driving method synoptic diagram of the display device of third embodiment of the invention.
Fig. 6 is the driving method synoptic diagram of the display device of fourth embodiment of the invention.
Fig. 7 is the driving method synoptic diagram of the display device of fifth embodiment of the invention.
Fig. 8 is the driving method synoptic diagram of the display device of sixth embodiment of the invention.
Fig. 9 is the driving method synoptic diagram of the display device of seventh embodiment of the invention.
Figure 10 is divided into other separation mode synoptic diagram of a plurality of demonstration blocks for viewing area of the present invention.
Embodiment
[first embodiment]
Please refer to Fig. 3, it is the driving method synoptic diagram of the display device of first embodiment of the invention, and it can be applicable to color order liquid crystal display (or field sequence LCD device) the preferred person of driving method of the present invention, but not as limit.In the present embodiment, display device comprises the viewing area, wherein the viewing area is by at least one liquid crystal cell (liquid crystal cell, not shown) and corresponding backlight (not shown) constitute, in addition, the size of viewing area is substantially equal to the size of the active matrix (active matrix) of general display panel in the present invention.At present embodiment, the viewing area definable goes out at least one first and shows that block 31 and second shows block 32, and this two shows that the width of block is substantially equal to the width of viewing area, but not as limit.Wherein, first shows the first backlight (not shown) etc. that block 31 includes the first corresponding liquid crystal cell district (not shown) and is arranged at the rear, in order to send different colours light; And second show that block 32 includes second corresponding liquid crystal cell district (not shown) and the second backlight (not shown) that its rear is set.That is the liquid crystal cell of present embodiment has comprised the first liquid crystal cell district and the second liquid crystal cell district at least, and backlight has then comprised first backlight and second backlight.In addition, in the present embodiment, each demonstration pairing backlight of block (for example first and second backlights) can comprise respectively can possess the light source device that sends ruddiness, green glow and blue light, and for example it can be made up of light sources such as red-light LED, green LED and blue leds.Moreover in this embodiment, each backlight can divide by its corresponding drive integrated circult to be controlled.
Please refer to Fig. 3, first subframe time (the sub-frame time at first frame time (frame time), or title " inferior frame time ") in, first shows that block 31 pairing first backlights send, ruddiness for example, make the viewing area piece 31 of winning show red sprite (being denoted as R), second shows that block 32 pairing second backlights then send, green glow for example, make second to show that block 22 shows green sprite (being denoted as G), that is in the same subframe time, for example in the first subframe time, first shows that block 31 and second shows that first and second backlights of block 32 both correspondences send the light of different colours respectively, or first shows that block 31 and second shows that block 32 shows the sprite of different colours respectively.
Next, at second subframe of first frame time in the time, first shows that block 31 pairing first backlights send, green glow for example, make the viewing area piece 31 of winning show green sprite (being denoted as G), second shows that block 32 pairing second backlights then send, blue light for example, make second to show that block 32 shows blue sprite (being denoted as B), that is in the same subframe time, for example the second subframe time, first shows that first backlight and second of block 31 shows that second backlight of block 32 sends the light of different colours respectively, or first shows that block 31 and second shows that block 32 shows the sprite of different colours respectively.
Again next, at the 3rd subframe of first frame time in the time, first shows that block 31 pairing first backlights then send, blue light for example, make the viewing area piece 31 of winning show blue sprite (being denoted as B), second shows that block 32 pairing second backlights then send, ruddiness for example, make second to show that block 32 shows red sprite (being denoted as R), that is in the 3rd subframe time, first backlight and second backlight send the light of different colours respectively, or first shows that block 31 and second shows that block 32 shows the sprite of different colours respectively.From the above, first backlight and second backlight all first, second in first frame time and the 3rd subframe successively send the light of different colours in the time, that is, for example, first backlight successively sends ruddiness (R), green glow (G) and blue light (B) at first frame time, and second backlight successively sends green glow (G), blue light (B) and ruddiness (R) at first frame time.After first frame time finishes, be right after and enter second frame time, the type of drive of second frame time as shown in Figure 3, is same as first frame time, so do not repeat them here in this embodiment.Special in addition one carry be, in the present invention, first frame time is adjacent with second frame time, however in another embodiment, first frame time also can be not adjacent to each other with second frame time.
In the present embodiment, with first frame time is that first of example shows that block 31 pairing first backlights send the light of ruddiness, green glow and three kinds of different colours of blue light respectively successively in the first, second and third subframe time of first frame time, make the viewing area piece 31 of winning in the different subframe time, show the sprite of red, green and blue three kinds of different colours in regular turn.That is to say, show that with first first backlight of block 31 is an example, wantonly two adjacent subframes are in the time, the luminous color of backlight is inequality, perhaps first backlight will show one time ruddiness, green glow or blue light at least at a plurality of subframe in the time, in like manner, second shows that block 32 pairing second backlights are then in first, second and third subframe time of first frame time, send the light of green glow, blue light and three kinds of different colours of ruddiness respectively successively, make second to show that block 32 in the different subframe time, shows the sprite of red, green and blue three kinds of different colours in regular turn; That is to say that second backlight is in office two adjacent subframes in the time, its luminous color is inequality, and perhaps second backlight will show one time ruddiness, green glow or blue light at least at a plurality of subframe in the time.In addition, in this embodiment, in arbitrary subframe time, two adjacent demonstration blocks, for example first shows that block and second shows block, its corresponding backlight will send the light of different colours.
Because of ruddiness, green glow and blue light are primaries, the equal proportion mixing then can be white light, and each primitive color light via each pixel cell in the liquid crystal cell the anglec of rotation control of liquid crystal of corresponding liquid crystal layer, then can adjust the bright dipping depth ratio of primaries, a plurality of sprites that presented in a plurality of subframe time in each frame time (as first frame time or second frame time) thus, the principle of utilizing human eye vision to persist will make human eye watch the colour picture that the real desire of display device shows in the whole frame time.That is through behind the complete frame time, first viewing area 31 and second viewing area 32 just can demonstrate the colour picture desiring to view and admire jointly.
In the present embodiment, because each subframe time of each frame time (for example, first, the second or the 3rd subframe time) in, the first adjacent backlight and second backlight send the light of different colours all simultaneously, or in each subframe time, the adjacent display areas piece shows that all the sprite of different colours is (for example in first subframe time of first frame time, first shows that block 31 shows red sprite, and the second demonstration block 32 shows green sprite), and each shows that the glow color of its corresponding backlight in the block two subframe times in office is neither identical, or each shows that its backlight of block will send one time ruddiness at least at a plurality of subframe in the time, green glow or blue light; Therefore the white object that shows high-speed mobile when picture, and when its background is black, as long as moving through first, this white object shows the block 31 and second border that shows between the block 32, just can further send different colours light with second backlight in the time respectively at different subframe by first backlight, carry out mixed light, so the look that can significantly improve in the known technology separates (color break-up, promptly so-called " rainbow phenomena ") problem, and significantly promotes display quality.
As can be seen from Figure 3, in the present embodiment, first backlight is in first subframe time of first frame time and in first subframe time of second frame time, all send the ruddiness (or the first demonstration block 31 all shows red sprite in this two subframes time) of same color, in like manner, also send the light of same color at all the other identical minor frame times; In addition, second backlight is in first subframe time of first frame time and in first subframe time of second frame time, then all send the green glow (or the second demonstration block 32 all shows green sprite in this two subframes time) of same color, in like manner, also send the light of same color at all the other identical minor frame times.That is to say, at present embodiment, at least one demonstration block (for example first shows block 31) is at the identical minor frame time of different frame time (for example first and second frame times), its corresponding backlight successively sends the light of same color, that is the color driving of its corresponding backlight is all identical in proper order, for example, first shows that block 31 is at first of first and second frame times, the second and the 3rd subframe time all successively showed same color, that is its backlight is all R → G → B in proper order in the color driving of first and second frame times, in like manner, second shows that block 32 is at first of first and second frame times, the second and the 3rd subframe time also all successively showed same color, that is its backlight is all G → B → R in proper order in the color driving of first and second frame times.
[second embodiment]
Next, introduce another embodiment of the present invention.Please refer to Fig. 4, it is the driving method synoptic diagram of the display device of second embodiment of the invention.Present embodiment is close with first embodiment to the type of drive of backlight, main difference is: the color driving that respectively shows the corresponding backlight of block in second frame time is different from the driving order in first frame time in proper order, that is the backlight of at least one demonstration block the different frame time (for example, first frame time and second frame time) the identical minor frame time, its corresponding backlight successively sends the light of different colours.
In the present embodiment, first shows that the block 41 pairing first backlight (not shown)s are in the identical minor frame time of first and second frame times, be taken up in order of priority the light that sends different colours, or first shows that block 41 shows the sprite of different colours respectively at the identical minor frame time of first and second frame times.For example, first backlight of the first demonstration block 41 is taken up in order of priority in the time at first subframe of first and second frame times and is sent redness (R) and green (G), and send green (G) and blue (B) in the time respectively at second subframe of first and second frame times, and send blueness (B) and red (R) in the time respectively at the 3rd subframe of first and second frame times; That is first backlight inequality in the color driving of first and second frame times order, be R → G → B in proper order for example, and be G → B → R in proper order in its color driving of second frame time in its color driving of first frame time.In like manner, second shows that the second backlight (not shown) of block 42 is in the identical minor frame time of first and second frame times, also can send the light of different colours respectively, or second show that block 42 shows the different colours sprite respectively at the identical minor frame time of first and second frame times, that is to say that second backlight is inequality in the color driving order of first and second frame times, be G → B → R in proper order for example, and be B → R → G in proper order in its color driving of second frame time in its color driving of first frame time.In other words, in the present embodiment, the backlight of at least one demonstration block, at adjacent or different frame times, the color driving of its backlight order is inequality, and thus, it can further reduce the phenomenon that look separates, and then promotes display quality.
[the 3rd embodiment]
Next, introduce another embodiment of the present invention.Please refer to Fig. 5, it is the driving method synoptic diagram of the display device of third embodiment of the invention.In the present embodiment, show that block further shows black sprite or white sprite (or the backlight that shows the block correspondence sends white light).
Please refer to Fig. 5, at first subframe of first frame time in the time, the first backlight (not shown) of the first demonstration block, 51 correspondences is sent ruddiness, so that the first demonstration block 51 shows red sprites (being denoted as R), and the second backlight (not shown) of the second demonstration block, 52 correspondences is sent green glow, so that second 52 of the demonstration blocks show green sprite (being denoted as G), that is at same subframe in the time, two adjacent demonstration blocks demonstrate the sprite of different colours respectively, or the adjacent pairing backlight of demonstration block sends the light of different colours.
Next, in like manner, at second subframe of first frame time in the time, first shows that first backlight of block 51 correspondences sends green glow, so that the first demonstration block 51 shows green sprites (being denoted as G), and second backlight of the second demonstration block, 52 correspondences sends blue light, so that second shows that block 52 shows blue sprite.
Again next, at the 3rd subframe of first frame time in the time, first shows that first backlight of block 51 correspondences sends blue light, so that the first demonstration block 51 shows blue sprites (being denoted as B), second shows that block 52 then shows black sprite (being denoted as X) or white sprite (W), that is at the 3rd subframe in the time, first show block 51 and second show block 52 both one of show black or white sprite, this also can be considered the sprite (blue sprite and black or white sprite) that two demonstration blocks show different colours respectively.Herein, want special one carry be, make and show that block demonstrates the black sprite in fact two kinds of ways are arranged usually, first: the backlight of promptly closing this demonstration block correspondence, even also Dui Ying backlight is not luminous, second method: the pixel in the corresponding liquid crystal cell district of this demonstration block is write data-signal, this data-signal (claiming the shading data-signal again), it can make the liquid crystal of liquid crystal layer rotate to an angle, the audience passes through this corresponding liquid crystal cell district with the light that hides this backlight of resistance, so will see the black picture.In addition, make and show that block demonstrates white sprite, usually in fact making corresponding backlight produce white light gets final product, and to make backlight produce white light, usually can use white light LEDs or get by the light equal proportion colour mixture that red-light LED, blue-ray LED and green light LED sent, that is to say, make to show block display white sprite, make its luminous white light as long as the backlight that shows block controlled.
Then, in the fourth officer frame time of first frame time, first shows that block 51 shows black sprite (X) or white sprite (W), and second backlight of the second demonstration block, 52 correspondences sends ruddiness, so that it shows red sprite (being denoted as R), that is one of two adjacent viewing area pieces show black or white sprite.In like manner, in second frame time, each shows that the type of drive of block all is same as first frame time basically.
In the present embodiment, because in first, second, third and fourth officer frame time of arbitrary first frame time, first shows that block 51 and second shows that block 52 shows the sprite of different colours all simultaneously respectively, or both show one of at least black (or white) sprite.Therefore, present embodiment can be by at least one subframe time in same frame time, further introducing by black (or white) sprite, carry out mixed light, it removes the look segregation phenomenon that can suppress in the known technology, and can possess simultaneously the effect of improving ghost or increasing brightness is arranged, and then significantly promote display quality.
In addition, from another angle, in the present embodiment, with first frame time is example, first shows that block 51 is in one of a plurality of subframe time of first frame time, fourth officer frame time for example, show black (or white) sprite, and remaining subframe in the time, corresponding at least each subframe time of its backlight sends once red, blueness and green light, if that is backlight (for example can send 3 kinds of different colours altogether, red, blue or green, but do not comprise black or white), then, these 3 kinds of colors are all shown once at least by first backlight in the residue subframe time.For example shown in Figure 5, send redness, green and blue light respectively at first, second and the 3rd its backlight of subframe time, that is to say that at this embodiment first shows demonstration different colours sprite in the 51 in office two adjacent subframe times of block; In like manner, second shows that block 52 in one of a plurality of subframe time of first frame time, for example the 3rd subframe time, shows black (or white) sprite, and remaining subframe in the time, corresponding at least each subframe time of its corresponding backlight is sent once redness, blueness and green light.For example shown in Figure 5, at first, second and fourth officer frame time, second backlight sends green, blueness and red light respectively, and in other words the wantonly two adjacent subframes of the second demonstration block 52 between same interframe also show the different colours sprite in the time in this embodiment.In addition, in the present embodiment, subframe time therein, when first show block first backlight send redness, green and blue light one of them the time, second light or second that sends with the first different color backlight backlight that shows block this moment second shows that block shows black or white picture, moreover, in the present embodiment, arbitrary subframe time, first shows that block 51 and second shows that block 52 does not all show black or white sprite simultaneously or not.
Among this embodiment, first shows that block 51 is identical in the color driving of first and second frame times in proper order, be that its color driving is all R → G → B → X (W) in proper order, and second show that block 52 also is identical in the color driving order of first and second frame times, be that its color driving is all G → B → X (W) → R in proper order, the driving method that is to say present embodiment shows that for each block is at the same subframe of two adjacent frame times in the time, the sprite color of the glow color of its backlight or its demonstration is identical, for example in first subframe time of first and second frame times, first shows that block 51 its first backlights glow color or its sprite color that successively shows successively is all R, and the glow color of the second demonstration block, 52 its second backlights priorities or the sprite color that shows thereafter are all G, and then the rest may be inferred as for other subframe times; Yet, in other embodiments, the color driving of present embodiment order also can be adjusted and changes as the type of drive of second embodiment (shown in Figure 4), that is, in the time, the sprite color of the glow color of its backlight or its demonstration is different at the same subframes of two adjacent different frame times for each or at least one demonstration block.In other words, for instance, first shows that block 51 is different in the color driving of first and second frame times in proper order, for example, in its color driving of first frame time is R → G → B → X (W) in proper order, and is G → B → X (W) → R in proper order in its color driving of second frame time.In addition, by Fig. 5 also as can be known, if backlight (for example can send 3 kinds of different colours altogether, red, blue or green, but do not comprise black or white), the a plurality of subframe time at arbitrary frame time corresponding backlight (the subframe time that does not comprise demonstration black or white sprite) that each shows block, each color that shows these 3 kinds of colors at least once.
[the 4th embodiment]
Next, introduce fourth embodiment of the invention.Please refer to Fig. 6, it is the driving method synoptic diagram of the display device of fourth embodiment of the invention.Present embodiment is close with the 3rd embodiment to the type of drive of backlight, main difference is: present embodiment can allow first to show that block 61 and second shows that block 62 all shows black sprite (or white sprite) at the same subframe of same frame time in the time, for example shown in the 3rd subframe time of first frame time among Fig. 6.
In the present embodiment, with first frame time is example, first shows that block 61 is in one of a plurality of subframe time of first frame time, the 3rd subframe time for example, show black (or white) sprite, and remaining subframe in the time, corresponding at least each subframe time of its backlight is sent once redness, blueness and green light.For example shown in Figure 6, send redness, green and blue light respectively respectively once at first, second and its backlight of fourth officer frame time, that is first shows that block 51 shows the different colours sprite at the wantonly two adjacent subframes of first frame time in the time in this embodiment; In like manner, second shows that block 62 in one of a plurality of subframe time of first frame time, for example the 3rd subframe time, shows black (or white) sprite, and remaining subframe in the time, corresponding at least each subframe time of its corresponding backlight is sent at least once redness, blueness and green light.For example shown in Figure 6, send green, blueness and red light respectively respectively once at first, second and fourth officer frame time backlight.In addition, in the present embodiment, with first frame time is example, in arbitrary subframe time, when first show block first backlight send redness, green and blue light one of them the time, show second light that sends with the first different color backlight backlight of block this moment second, and at least one subframe time, for example in the 3rd subframe time, first shows that block 51 and second shows block 52 common black or the white sprites of showing.
Second frame time of present embodiment, as shown in Figure 6, its first demonstration block 61 and second shows that block 62 shows black or white sprite as first frame time at least one subframe time jointly, but in another embodiment, it also can be chosen in common black or the white sprite of showing of at least one subframe time.
In addition, similarly, in the present embodiment, each shows that block is at the same subframe of two adjacent frame times in the time, the sprite color of the glow color of its backlight or its demonstration also as the aforementioned the embodiment type of drive be designed to identical or differently, will not give unnecessary details at this.
[the 5th embodiment]
Next, introduce fifth embodiment of the invention.Please refer to Fig. 7, it is the driving method synoptic diagram of the display device of fifth embodiment of the invention.The type of drive of present embodiment and the 3rd embodiment are similar, and difference is: the viewing area of present embodiment is divided into into 4 and shows block.As shown in Figure 7, in this embodiment, the viewing area of display device comprises that first shows that block 71, second shows that block the 72, the 3rd shows that block 73 and the 4th shows block 74, and the width of every demonstration block is substantially equal to the width of viewing area, but not as limit.Similarly, display device can have the first backlight (not shown), the second backlight (not shown), the 3rd backlight (not shown) and the 4th backlight (not shown), it respectively corresponding first shows that block 71, second shows that block the 72, the 3rd shows that block 73 and the 4th shows block 74, with provide light the palpus light source.Wherein, the first, second, third and the 4th backlight can independently divide and is arranged and controls or form backlight module jointly, wherein this backlight module can comprise the light emitting diode (LED) that can send different colours light, and can carry out light emitting control out of the ordinary to the first, second, third and the 4th backlight.In addition, in like manner, display device also has liquid crystal cell, it can define different liquid crystal cell districts corresponding to individual other viewing area piece, that is first shows that block 71 will comprise the first liquid crystal cell district, second and show that block 72 comprises the second liquid crystal cell district, the 3rd and shows that block 73 comprises the 3rd liquid crystal cell district and the 4th and shows that block comprises the 4th liquid crystal cell district.
Please refer to Fig. 7, in the present embodiment in each subframe time, each shows that block shows the sprite of different colours respectively, and the color of wantonly two adjacent viewing area pieces, differing from each other, also even show that with four of this enforcement blocks are example, in each subframe time, each color is shown that by one block shows once at least.In addition, other of present embodiment drives rule and then is similar to the 3rd embodiment, for example, each show block a plurality of subframe time of frame time one of at least, show black (or white) sprite, and at other subframe in the time, corresponding at least each subframe time of its corresponding backlight is sent once red, blueness and green light, that is each shows that the wantonly two adjacent subframes of block in same frame time show in the time that different colours sprite or its backlight send different colours light.In addition, arbitrary subframe time in same frame time, when the backlight that shows block send redness, green and blue light one of them the time, the backlight of another adjacent with this demonstrations block demonstration this moment block sends the light with the different color backlight of this demonstration block, and, in arbitrary subframe time of same frame time, wantonly two show demonstration black or white sprite when block is different, that is, only have one to show that block shows black or white sprite in arbitrary subframe time of same frame time.
In addition, the driving method of present embodiment is when the type of drive that can introduce as the 4th embodiment, that is in arbitrary subframe time of same frame time, it has at least plural demonstration block to show black or white sprite jointly, and described a plurality of black or white sprite can be adjacent one another are or non-conterminous.
In addition, similarly, each shows block at the same subframe of two adjacent frame times in the time in the present embodiment, the sprite color of the glow color of its backlight or its demonstration also as the aforementioned the embodiment type of drive be designed to identical or differently, will not give unnecessary details at this.Moreover, in the present embodiment, each shows that block through a complete frame time (comprising for first to fourth subframe time), all successively shows ruddiness, green glow, blue light and black picture (or white picture), and its order can be identical or inequality at different demonstration blocks.
Because the quantity of the demonstration block of present embodiment is all come manyly than previous embodiment, therefore when picture shows the object of high-speed mobile, this object will increase relatively through the different probability on the border of block that show, therefore its improvement for the look segregation phenomenon will have better effect than previous embodiment.
[the 6th embodiment]
Next, introduce sixth embodiment of the invention.Please refer to Fig. 8, it is the driving method synoptic diagram of the display device of sixth embodiment of the invention.Present embodiment and the 5th embodiment are similar, and main difference is: the viewing area of present embodiment comprises 6 altogether and shows block, and wherein each shows that the width of block is substantially equal to the width of viewing area, but not as limit.
In the present embodiment, in each subframe time, these 6 show in the block, redness, blueness and green are shown once by at least one demonstration block respectively, residue shows red, blue and green demonstration block then shows black or white sprite, and the wantonly two adjacent different colors of its demonstration of demonstration block.In addition, in same frame time, has the subframe time at least, one of them is shown more than twice at least for redness, blueness and green, promptly have at least two show blocks show simultaneously redness, blueness and green at least one of them, for example, the second subframe time of first frame time, have two and show that block shows redness, and two demonstration blocks show green.Moreover when arbitrary subframe time, when having at least plural demonstration block to show black or white sprite, the block of described a plurality of demonstration black or white sprite is not adjacent to each other.In addition, other of present embodiment drives rule and then is similar to the 5th embodiment, for example, each show block a plurality of subframe time of a frame time one of at least, show black (or white) sprite, and at other residue subframe in the time, corresponding at least each subframe time of its corresponding backlight is sent once redness, blueness and green light, that is, each shows that block is in same frame time, shades of colour is shown at least once by the backlight of correspondence, or shows in wantonly two adjacent subframe times that different colours sprite or its backlight send different colours light.In the present embodiment, each frame time is divided into and comprises 4 subframe times, basically, the subframe number of each frame time need be equal to or greater than the number that shows all how many kinds of color sprites that can demonstrate of block at least, preferably, it can be the multiple of the number that shows all displayable color sprites of block.For example, in the present embodiment, each shows that the backlight of block correspondence can send the light of red, blue and green three kinds of colors altogether, be that it can correspondingly show red, blue or 3 kinds of colors of green sprite, show respectively that in addition block also can show black or white sprite, so the subframe number of each frame time is required to be 4 (promptly 3 kinds of colors add 1 black or white) at least or be 4 multiple.
In addition, similarly, each shows block at the same subframe of two adjacent frame times in the time in the present embodiment, the sprite color of the glow color of its backlight or its demonstration also as the aforementioned the embodiment type of drive be designed to identical or differently, will not give unnecessary details at this.
[the 7th embodiment]
Next, introduce seventh embodiment of the invention.Please refer to Fig. 9, it is the driving method synoptic diagram of the display device of seventh embodiment of the invention.Present embodiment and the 6th embodiment are similar, and main difference is: the viewing area of present embodiment is divided into nine and shows block, and wherein each shows that the width of block is substantially equal to the width of viewing area, but not as limit.
In the present embodiment, nine in each subframe time show in the block, red, blue and green is shown secondary by at least one demonstration block respectively, and residue shows redness, blue and green demonstration block then shows black (or white) sprite, and if each subframe time has plural demonstration block to show black (or white) sprite, sprite each other can be adjacent or non-conterminous for then described a plurality of black (or white), but in the demonstration block of all the other non-demonstration black (or white), wantonly two adjacent its palpuses of demonstration block show the light that different colors or its backlight beard and hair go out different colours, that is, in then described a plurality of non-blacks (or white) sprite, the sprite of same color is not adjacent to each other; In addition, other of present embodiment drives rule and then is similar to the 6th embodiment.
Three primary colors among above-mentioned first to the 7th embodiment also can be used its complementary colors instead: cyan (cyan), carmetta (magenta) and yellow (yellow), also can further primaries and complementary coloured light thereof be carried out mixed light, and introduce black mole picture or white chessman picture.For instance, for example in an embodiment with the viewing area, define 7 and show block, each shows that block shows ruddiness respectively, green glow, blue light, blue or green light, fuchsin light, gold-tinted and black (or white) sprite one of them, that is in the subframe time, described a plurality of color is all shown once at least by the demonstration block of correspondence, and wantonly two adjacent demonstration blocks show different colours each other, in addition, in this embodiment, each frame time may be partitioned into and comprises 7 subframe times (promptly adding 1 black or white corresponding to 6 colors), that is basically, the subframe number of each frame time need be equal to or greater than all numbers that show the color that block can demonstrate at least, and preferably, its all demonstration blocks that can be the viewing area can demonstrate the multiple of the number of color.Certainly, in the foregoing description, each shows the order of block in shown color of per 7 subframe times, and adjacent two blocks are in the type of drive of the color of same subframe time, and the type of drive of black (or white) when sprite is introduced, can adopt the rule of correspondence or its combination of the type of drive of first to the 7th embodiment.In addition, the viewing area shows the block except being divided into above-mentioned 2,4,6,7 and 9, also can expand in the practical application to be divided into N (N for more than or equal to 2 integer) and to show block, and for example: 3,5 or 10 are with first-class.And according to the driving rule of aforementioned first to the 7th embodiment, when showing that block expands to N, the driving rule of its correspondence roughly can be concluded and be divided into two big classes, the first kind shows the black sprite for showing that block does not comprise, and second class then shows black sprite or white sprite for showing that block comprises.About its main method of operating of the first kind be: at first, the viewing area of display device is defined N demonstration block, and each shows all corresponding backlight of block, wherein N is the integer more than or equal to 2, each frame time of display device comprises M subframe time at least, then driving method comprises: make each this backlight, in M the subframe time of same this frame time, send the light of different colours respectively in regular turn; And in arbitrary subframe time of arbitrary this frame time, make wantonly two adjacent backlights, send the light of different colours respectively, the light of this different colours wherein, for example, the group that optional free ruddiness, green glow, blue light, blue or green light, fuchsin light, gold-tinted and white light are formed (but not as limit), and if each this backlight can send the light of K kind color altogether (for example when backlight can send ruddiness, green glow, blue light and white light, K=4 then), then M is generally equal to K or is the multiple of K; Also can further comprise in the driving method of this first kind: the same subframe that makes the adjacent frame time of each backlight in office two sends the light of same color in the time; Perhaps comprise: make the same subframe time of the adjacent frame time of each backlight in office two, send the light of different colours; Perhaps comprise: make each backlight send the light of color inequality in wantonly two of same frame time adjacent subframe times; In addition, in the driving method of this first kind, also can comprise:, K kind color is all shown once at least by the backlight of the demonstration block of correspondence in arbitrary subframe time; Perhaps comprise: the backlight that makes each block is M the subframe time of this frame time therein, and each color that shows K kind color at least once.
In addition, its main being operating as of driving method about second class: at first, the viewing area of display device is defined N demonstration block, and each shows all corresponding backlight of block, wherein N is the integer more than or equal to 2, each frame time of display device comprises M subframe time at least, then driving method comprises: at M subframe of first this frame time in the time, in one of them first subframe time at least, make N to show that one of them shows black sprite or white sprite to block at least, all the other show that the backlight of block then sends the light of non-black or non-white, and in this first subframe time, make described a plurality of all the other show in the backlight of blocks that wantonly two adjacent backlights send the light of different colours respectively, wherein, if each this backlight can send the light of K kind color, and this K kind color do not contain black or white, and then M is generally equal to K+1 or is the multiple of K+1.In the driving method of this second class, also can further comprise: in this first subframe time, N shows to have at least plural demonstration block to show black sprite or white sprite in the block, all the other show that the backlight of blocks then sends the light of non-black or white, and described a plurality of black sprite or white sprite are adjacent one another are or non-conterminous; Perhaps comprise: in each subframe time of each frame time, N shows that one of them shows black sprite or white sprite to block at least; Perhaps comprise: described a plurality of M the subframe times of first frame time one of them, N shows that block all shows black sprite or white sprite; Perhaps comprise: this K kind color is all shown once at least by the backlight of the demonstration block of correspondence; Perhaps comprise: the backlight that makes each block is at M subframe of this first this frame time in the time, show at least in the K kind color each color once; Perhaps comprise: the backlight that makes each block is at M subframe of this first this frame time in the time, show at least in the K kind color each color once, and make each block show at least black sprite or white sprite; Also or comprise and make each this backlight, in M the subframe time of each frame time, send the light of different colours respectively in regular turn.
In addition, the viewing area is divided into the separation mode of a plurality of demonstration blocks, except above-mentioned separation mode up and down, about also can being divided into, the separation fraction of diagonal line etc.Please refer to Figure 10, it is divided into other separation mode synoptic diagram of a plurality of demonstration blocks for viewing area of the present invention.Except the separation mode of Figure 10, other separation mode miscellaneous is too numerous to enumerate, and it is neither to take off spirit of the present invention.In fact above-mentioned so-called separation can show that to difference block carry out independent and different control via drive integrated circult, and whole light sources of non-traditional whole image are done simultaneously together and identical control such as lighted, close.The mode that this block light source of the present invention is independently controlled can be fit to by led light source, or other equally has a plurality of light sources and is covered with each regional light source module of picture and reaches.
Comprehensively above-mentioned, the present invention proposes the multiple driving method that is used for display device, utilization is divided into a plurality of demonstration blocks with the viewing area, make it at any time show the light of different colours all respectively, simultaneously, also can introduce black sprite (or white sprite) in the time, can effectively solve the look separation problem that is produced when using look preface method, significantly promote the display quality of display device at subframe.
Claims (30)
1. the driving method of a display device, wherein, described display device comprises the viewing area, and described viewing area comprises at least one first and shows that block and one second shows block and corresponding with it respectively first backlight and second backlight, and described method comprises:
First subframe in first frame time makes described first backlight and described second backlight send the light of different colours separately in the time;
Second subframe in described first frame time makes described first backlight and described second backlight send the light of different colours separately in the time; And
The 3rd subframe in described first frame time is in the time, makes described first backlight and described second backlight send the light of different colours separately,
Wherein, described first backlight and described second backlight all described first, described second and described the 3rd subframe in described first frame time successively send the light of different colours in the time.
2. the method for claim 1, wherein described first shows that block and described second shows that the width of block equals the width of described viewing area.
3. the method for claim 1, wherein the light of described different colours is selected from the group that is made up of ruddiness, green glow, blue light, blue or green light, fuchsin light, gold-tinted and white light.
4. the method for claim 1 also comprises:
First subframe in second frame time is in the time, makes described first backlight and described second backlight send the light of different colours separately,
Wherein, described first backlight and described second backlight at least one of them described first subframe in described first frame time in the time and described first subframe in described second frame time successively send the light of different colours in the time.
5. the method for claim 1 also comprises:
First subframe in second frame time is in the time, makes described first backlight and described second backlight send the light of different colours separately,
Wherein, described first backlight and described second backlight described first subframe in described first frame time in the time and described first subframe in described second frame time all successively send the light of same color in the time.
6. the method for claim 1 also comprises:
First subframe in second frame time makes described first to show that block shows that black sprite and described second backlight send the light of non-black in the time,
Wherein, described first subframe of described second backlight in described first frame time in the time and described first subframe in described second frame time successively send the light of different colours in the time.
7. the method for claim 1 also comprises:
First subframe in second frame time makes described first to show that block shows that black sprite and described second backlight send the light of non-black in the time,
Wherein, described first subframe of described second backlight in described first frame time in the time and described first subframe in described second frame time successively send the light of same color in the time.
8. the method for claim 1, wherein described first shows that block and described second shows that block is adjacent.
9. the method for claim 1, wherein described first shows that block and described second shows that block is adjacent, and described first frame time is adjacent with described second frame time.
10. the light that the first subframe time of the method for claim 1, wherein described first backlight in described first frame time sends is white light.
11. the method for claim 1, wherein described first backlight and described second backlight comprise LED source.
12. the method for claim 1, wherein described display device comprises the color-sequence liquid crystal display device.
13. the driving method of a display device, wherein, described display device comprises the viewing area, described viewing area comprises N and shows block and N corresponding with it respectively backlight, wherein N is the integer more than or equal to 2, each frame time of described display device comprises M subframe time at least, and described method comprises:
Make each described backlight,, send the light of different colours respectively in regular turn in M the subframe time of same described frame time; And
In arbitrary subframe time of arbitrary described frame time, make wantonly two adjacent described backlights, send the light of different colours respectively.
14. method as claimed in claim 13 also comprises the same subframe time that makes the adjacent described frame time of each described backlight in office two, sends the light of same color.
15. method as claimed in claim 13 also comprises the same subframe time that makes the adjacent described frame time of each described backlight in office two, sends the light of different colours.
16. method as claimed in claim 13 also comprises the light that makes each described backlight send color inequality in wantonly two of same described frame time adjacent subframe times.
17. method as claimed in claim 13, wherein, each described backlight can send the light of K kind color, and described method also is included in arbitrary described subframe time, and described K kind color is all shown once at least by the backlight of the demonstration block of correspondence.
18. method as claimed in claim 13, wherein, each described backlight can send the light of K kind color, and described method also comprises backlight M the subframe time of described frame time therein that makes each block, and each color that shows K kind color at least once.
19. method as claimed in claim 13, wherein, described N shows that the width of block equals the width of described viewing area.
20. method as claimed in claim 13, wherein, the light of described different colours is selected from the group that is made up of ruddiness, green glow, blue light, blue or green light, fuchsin light, gold-tinted and white light.
21. method as claimed in claim 17, wherein, M equals K or is the multiple of K.
22. the driving method of a display device, wherein, described display device comprises the viewing area, described viewing area comprises N and shows block and N corresponding with it respectively backlight, wherein N is the integer more than or equal to 2, each frame time of described display device comprises M subframe time at least, and described method comprises:
In described M the subframe time of the first described frame time, at one of them first described subframe at least in the time, make described N to show that one of them shows black sprite or white sprite to block at least, all the other show that the backlight of block then sends the light of non-black or non-white; And
In the described first described subframe time, make described a plurality of all the other show in the backlight of blocks that wantonly two adjacent backlights send the light of different colours respectively.
23. method as claimed in claim 22, wherein, in the described first subframe time, described N shows to have at least plural demonstration block to show black sprite or white sprite in the block, all the other show that the backlight of blocks then sends the light of non-black or white, and described a plurality of black sprite or white sprite are adjacent one another are or non-conterminous.
24. method as claimed in claim 22, wherein, in each subframe time of each described frame time, described N shows that one of them shows black sprite or white sprite to block at least.
25. method as claimed in claim 22, wherein, described a plurality of M the subframe times of the described first described frame time one of them, described N shows that block all shows black sprite or white sprite.
26. method as claimed in claim 22, wherein, each described backlight can send the light of K kind color, and described K kind color does not comprise black or white, described method also is included in arbitrary described subframe time, and described K kind color is all shown once at least by the backlight of the demonstration block of correspondence.
27. method as claimed in claim 22, wherein, each described backlight can send the light of K kind color, and described K kind color does not comprise black or white, described method also comprises the backlight that makes each block at M subframe of the described first described frame time in the time, show at least in the K kind color each color once.
28. method as claimed in claim 22, wherein, each described backlight can send the light of K kind color, and described K kind color does not comprise black or white, described method also comprises the backlight that makes each block at M subframe of the described first described frame time in the time, at least show in the K kind color each color once, and make each block show at least black sprite or white sprite.
29. method as claimed in claim 22, wherein, each described backlight can send the light of K kind color, and described K kind color does not comprise black or white, described method also comprises makes each described backlight, in M the subframe time of each described frame time, send the light of different colours respectively in regular turn.
30. method as claimed in claim 26, wherein M equals K+1 or is the multiple of K+1.
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CN102122462A (en) * | 2011-02-11 | 2011-07-13 | 厦门强力巨彩光电科技有限公司 | Virtual full-color LED (light-emitting diode) display screen and display control method thereof |
CN102163401A (en) * | 2011-02-25 | 2011-08-24 | 福建华映显示科技有限公司 | Method for controlling color field switching frequency of color sequence display |
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KR101252089B1 (en) * | 2006-06-30 | 2013-04-12 | 엘지디스플레이 주식회사 | Liquid crystal display |
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CN102122462A (en) * | 2011-02-11 | 2011-07-13 | 厦门强力巨彩光电科技有限公司 | Virtual full-color LED (light-emitting diode) display screen and display control method thereof |
CN102122462B (en) * | 2011-02-11 | 2013-04-10 | 厦门强力巨彩光电科技有限公司 | Virtual full-color LED (light-emitting diode) display screen and display control method thereof |
CN102163401A (en) * | 2011-02-25 | 2011-08-24 | 福建华映显示科技有限公司 | Method for controlling color field switching frequency of color sequence display |
CN102163401B (en) * | 2011-02-25 | 2013-11-06 | 福建华映显示科技有限公司 | Method for controlling color field switching frequency of color sequence display |
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