CN102024433A - Display light source luminescence method - Google Patents
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Abstract
A display light source luminescence method is applied to a color sequential display having three monochromatic light sources. In a frame period, the monochromatic light sources asynchronously illuminate a plurality of first monochromatic lights respectively according to a plurality of first color data; then the display light source luminescence method includes that in the frame period, the monochromatic light sources asynchronously are made to illuminate a plurality of second monochromatic lights respectively according to a second color datum; and the second monochromatic lights are visually mixed into a color-mixed light.
Description
Technical field
The invention relates to a kind of light source luminescent method of display, and particularly relevant for the light source luminescent method of a kind of color sequential display (color 8equential display).
Background technology
Known color sequential liquid crystal display (color sequential liquid crystal display, color sequential LCD) causes image quality to reduce in display frame regular meeting's generation often look segregation phenomenon (colorbreakup).Specifically, when known color sequential liquid crystal display when showing the dynamic menu of mobile object, audience's eyes can stare at this object unconsciously and see, and follow the trail of moving of object.
At this moment, constitute the three primary colors picture of object image, just red picture, green picture and blue picture can not be incident upon on the amphiblestroid same position, to such an extent as to the audience can think that the color that separates appears in the edge of this mobile object as rainbow.
In order to improve the look segregation phenomenon, the someone proposes after showing the three primary colors picture at present, immediately the display white picture.That is to say that color sequential liquid crystal display shows red picture, green picture, blue picture and white picture circularly in regular turn, reduce of the harmful effect of look segregation phenomenon image quality.
The module backlight of color sequential liquid crystal display (back light module) can adopt three kinds of light emitting diodes, i.e. ruddiness, green glow and blue light-emitting diode usually.When the display white picture, all light emitting diode can be simultaneously luminous, to send by red light, green light and white light that blue light was mixed.Yet,, therefore when the display white picture, will cause the instantaneous power of color sequential liquid crystal display excessive because all light emitting diodes are simultaneously luminous.
Summary of the invention
The invention provides a kind of light source luminescent method of display, it can not only reduce the harmful effect of look segregation phenomenon to image quality, more can avoid the instantaneous power of display excessive simultaneously.
The present invention proposes a kind of light source luminescent method of display, is applied to a color sequential display with three monochromatic sources.In these monochromatic sources in a picture cycle, side by side do not send after a plurality of first monochromatic light according to a plurality of first color data respectively, the light source luminescent method of display comprises, according to one second color data, make a plurality of monochromatic sources in picture cycle, side by side do not send a plurality of second monochromatic light respectively, so that these second monochromatic light visually are mixed into a mixed light.
In an embodiment of the present invention, the time of above-mentioned picture cycle (frame cycle) is less than or equal to 16.6 milliseconds.
In an embodiment of the present invention, above-mentioned picture cycle is divided into a plurality of first colour field periods and one second colour field period.These first monochromatic light are to send in these first colour field periods, and these second monochromatic light are to send in the period in second colour field.
In an embodiment of the present invention, the time of the above-mentioned first colour field period is between 1 millisecond to 5 milliseconds.
In an embodiment of the present invention, the time of the above-mentioned second colour field period is between 1 millisecond to 5 milliseconds.
In an embodiment of the present invention, one of them monochromatic source is sent repeatedly second monochromatic light in second colour field in the period.
In an embodiment of the present invention, each first monochromatic light is red light, green light or blue light.
In an embodiment of the present invention, each second monochromatic light is red light, green light or blue light.
In an embodiment of the present invention, above-mentioned mixed light is a white light.
In an embodiment of the present invention, above-mentioned mixed light is a sodium yellow, indigo-blue coloured light or carmine light.
In an embodiment of the present invention, these monochromatic sources are respectively a red light source, a green light source and a blue-light source.In picture cycle, send these first monochromatic methods and comprise, write a red data.According to red data, make red light source send a red light.Write a green data.According to green data, make green light source send a green light.Write a blue data,, make blue-light source send a blue light according to blue data.
In an embodiment of the present invention, before sending these second monochromatic light, also comprise writing second color data.
In an embodiment of the present invention, wherein each monochromatic source comprises at least one luminophor.
In an embodiment of the present invention, above-mentioned luminophor comprises a light emitting diode or a cathode fluorescent tube.
In sum, the present invention is after sending all first monochromatic light, according to second color data, make at least two monochromatic sources in picture cycle, side by side do not send a plurality of second monochromatic light respectively, visually forming a mixed light, and then reduce of the harmful effect of look segregation phenomenon to image quality.
Secondly, owing to mixed light is side by side not sent by a plurality of second monochromatic light to form, therefore, when forming mixed light, wantonly two monochromatic sources can be not luminous at the same time, so can avoid the instantaneous power of color sequential display excessive.
Hence one can see that, and the present invention can not only reduce the harmful effect of look segregation phenomenon to image quality, more can avoid the instantaneous power of color sequential display excessive simultaneously, reduces the demand of color sequential display to the high power electronic assembly, and then reduce production costs.
For above-mentioned feature of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Figure 1A is the schematic top plan view of a kind of monochromatic source of being suitable for of the light source luminescent method of the display of one embodiment of the invention.
Figure 1B is the schematic top plan view of the another kind of monochromatic source that is suitable for of the light source luminescent method of the display of one embodiment of the invention.
Fig. 2 A is the synoptic diagram that the light source luminescent method of the display of one embodiment of the invention operates in time.
Fig. 2 B is the synoptic diagram that the light source luminescent method of the display of another embodiment of the present invention operates in time.
Fig. 2 C is the synoptic diagram that the light source luminescent method of the display of another embodiment of the present invention operates in time.
Embodiment
In the present invention wherein among the embodiment, the light source luminescent method of display can be applied in color sequential display, wherein this color sequential display can be flat-panel screens such as LCD or plasma display panel, or (the Digital Micro-mirror Device projector of digital micro-mirror projector, DMDprojector) or monocrystalline silicon liquid crystal projector projectors such as (Liquid Crystal On Silicon projector, LCOS projector).
Hold above-mentioned, color sequential display and have three monochromatic sources, and the color of the light that these monochromatic sources are sent differs from one another, for example these monochromatic sources can be respectively a red light source, a green light source and a blue-light source, perhaps also can be respectively a carmetta light source, a yellow light sources and an Indigo light source.
With LCD for illustrating, see also Figure 1A, it illustrates the wherein light supply apparatus 100 that is suitable for of an embodiment of the present invention, and wherein light supply apparatus 100 is one of them assembly of LCD, and more can be used as the light emitting source of module backlight (backlight module).
These monochromatic sources 110r, 110g and 110b comprise a plurality of luminophor 112r, 112g and 112b.Specifically, monochromatic source 110r comprises a plurality of luminophor 112r, and monochromatic source 110g comprises a plurality of luminophor 112g, and monochromatic source 110b comprises a plurality of luminophor 112b, and wherein these luminophors 112r, 112g and 112b are all light emitting diode.This shows that the applicable display of luminescent method of present embodiment can adopt light emitting diode to be used as light source.
What deserves to be mentioned is, though included luminophor (being 112r, 112g or the 112b) quantity of each monochromatic source shown in Figure 1A (being 110r, 110g or 110b) is a plurality of, but in the embodiment that other does not illustrate, for example in the employed small-size liquid crystal displays of mobile phone screen, the included luminophor quantity of each monochromatic source can have only one.
In addition, in other embodiments, luminophor 112r, 112g and 112b can also change into cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL), shown in Figure 1B.See also Figure 1B, light supply apparatus 200 comprises three monochromatic source 210r, 210g and 210b, and each monochromatic source (being 210r, 210g or 210b) can comprise one or more luminophors.
For example, monochromatic source 210r can comprise at least one luminophor 212r, monochromatic source 210g can comprise at least one luminophor 212g, and monochromatic source 210b can comprise at least one luminophor 212b, and wherein these luminophors 212r, 212g and 212b are all cathode fluorescent tube.This shows that the applicable display of luminescent method of present embodiment not only can adopt light emitting diode as light source, and can adopt cathode fluorescent tube as light source.
Fig. 2 A is the synoptic diagram that the light source luminescent method of the display of one embodiment of the invention operates in time.See also Figure 1A and Fig. 2 A, about the light source luminescent method of the display of present embodiment, statement is in advance, below only illustrate as an example with the monochromatic source 110r among Figure 1A, 110g and 110b, and non-limiting the present invention.
Particularly, respectively according to a plurality of first color data D11, D12 and D13 and side by side do not send a plurality of first monochromatic light L11, L12 and L13, wherein the time of picture cycle C is less than or equal to 16.6 milliseconds (ms) in a picture cycle C for these monochromatic sources 110r, 110g and 110b.Therefore, though monochromatic source 110r, 110g and 110b side by side do not send the first monochromatic light L11, L12 and L13, be subjected to the effect of persistence of vision, human eye can think that monochromatic source 110r, 110g and 110b are simultaneously luminous.
Hold above-mentionedly, picture cycle C can be divided into a plurality of first colour field period S11, S12 and the S13 and the second colour field period S20, and the first monochromatic light L11, L12 and L13 send in these first colour fields period S11, S12 and S13 respectively.The time of these first colour fields period S11-S13 can be in fact mutually the same, and all can be between 1 millisecond to 5 milliseconds.
Because monochromatic source 110r, 110g and 110b are respectively red light source, green light source and blue-light source, so these first monochromatic light L11, L12 and L13 are respectively red light, green light or blue light.When these first monochromatic light L11, L12 and L13 did not side by side send, display can switch ground fast and show red picture, green picture and blue picture.By the effect of persistence of vision, these red pictures, green picture and blue picture are visually constituted image.
Method about these first monochromatic light L11, L12 and L13 send in picture cycle C specifically, at first, writes the first color data D11, wherein for example is to write to display panels (LCDpanel).Then, according to the first color data D11, make monochromatic source 110r send the first monochromatic light L11.The first color data D11 is a red data, and it is used for the order display and shows red picture, and monochromatic source 110r is a red light source, so the first monochromatic light L11 is a red light.So, by the first monochromatic light L11 that monochromatic source 110r is sent, display is able to show red picture according to the first color data D11.
After the first monochromatic light L11 sends, write the first color data D12 immediately, it is to be used for the order display to show the green data of green picture, and the first color data D12 writes to display panels.Afterwards, according to the first color data D12, make monochromatic source 110g send first monochromatic light L12, the just green light for green light source.So, display can show green picture according to the first color data D12.
After the first monochromatic light L12 sends, write the first color data D13 immediately, it is the blue data that writes to display panels, and blue data is to be used for the order display to show blue picture.Then, according to the first color data D13, make the monochromatic source 110b for blue-light source send the first monochromatic light L13, wherein the first monochromatic light L13 is a blue light.When blue light (i.e. the first monochromatic light L13) when sending, display can show blue picture according to the first color data D13.
After the first monochromatic light L11 of redness, the green first monochromatic light L12 and the first blue monochromatic light L13 sent in regular turn, display was shown red picture, green picture and blue picture in order.So, by the effect of persistence of vision, red picture, green picture and blue picture can visually present the image of viewing and admiring for the audience.
What deserves to be mentioned is, though being red light, green light and blue light, sends in regular turn the embodiment shown in Fig. 2 A, but do not illustrate among the embodiment at other, can also be that green light, red light and blue light send in regular turn, or red light, blue light and green light are sent in regular turn, therefore the embodiment shown in Fig. 2 A is only for illustrating, and non-limiting the present invention.
After these first monochromatic light L11, L12 and L13 send, then, write one second color data D2, it for example is to write to display panels.Afterwards, according to the second color data D2, make these monochromatic sources 110r, 110g and 110b in picture cycle C, side by side not send a plurality of second monochromatic light L21, L22 and L23 respectively, so that the second monochromatic light L21, L22 and L23 visually are mixed into a mixed light M1.
Specifically, the second monochromatic light L21, L22 and L23 all send in the second colour field period S20, and the second monochromatic light L21, L22 and L23 three send individually in order.Therefore, in the second colour field period S20, the second monochromatic light L21, L22 and L23 wherein appoint the two can not send at the same time.In addition, the time of the second colour field period S20 can be between 1 millisecond to 5 milliseconds, and can with the first colour field period S11-S13 wherein time of one identical.
Because the second monochromatic light L21, L22 and L23 are sent by monochromatic source 110r, 110g and 110b respectively, so these second monochromatic light L21, L22 and L23 are respectively red light, green light or blue light equally.In other words, the color with the first monochromatic light L11, L12 and L13 three is identical respectively for the second monochromatic light L21, L22 and L23 three's color.
Though in the second colour field period S20, the second monochromatic light L21, L22 and L23 send simultaneously, but the effect that is subjected to persistence of vision influences, and human eye can think that the second monochromatic light L21, L22 and L23 send simultaneously, thinks that promptly monochromatic source 110r, 110g and 110b three are simultaneously luminous by mistake.Therefore, the second monochromatic light L21, L22 can visually mix with L23, and then form mixed light M1.
This shows that human eye can think that mixed light M1 is luminous simultaneously and be mixed into by monochromatic source 110r, 110g and 110b three.In addition, because the second monochromatic light L21, L22 and L23 are respectively red light, green light or blue light, therefore mixed light M1 can be a white light, i.e. the second monochromatic light L21, L22 and L23 mixed white light visually, and allowing display pass through mixed light M1 can the display white picture.
Secondly, mixed light M1 sends the back and sends at the first monochromatic light L11, L12 and L13, so present embodiment can allow display after demonstration red picture, green picture and blue picture, immediately the display white picture.So, utilize the formed white picture of mixed light M1, present embodiment can reduce the harmful effect of look segregation phenomenon to image quality.
In addition, because mixed light M1 is not side by side sent and is formed by the second monochromatic light L21, L22 and L23 three, so when the display white picture, monochromatic source 110r, 110g and 110b three can't be simultaneously luminous, and promptly monochromatic source 110r, 110g and 110b wherein appoint the two can be not luminous at the same time.Therefore, when the display white picture, present embodiment can be controlled monochromatic source 110r, 110g and 110b three's instantaneous power, avoids the instantaneous power of display excessive.
About second monochromatic light, in other embodiments, one of them monochromatic source (110r, 110g or 110b) can be sent repeatedly second monochromatic light in the second colour field period S20, shown in Fig. 2 B.Specifically, see also Figure 1A and Fig. 2 B, after the first monochromatic light L11, L12 and L13 send, in the second colour field period S20 of picture cycle C, according to second a color data D2 ' who writes to display panels, monochromatic source 110r, 110g and 110b side by side do not send the second monochromatic light L31, L32 and L33 respectively, and wherein the second monochromatic light L31, L32 and L33 three send secondary at least.
For example, be example with Fig. 2 B, monochromatic source 110r, 110g and 110b three can be luminous in order, and the secondary that circulates at least.Therefore, the second monochromatic light L31, L32 and L33 three can send secondary in the second colour field period S20.In addition, the second monochromatic light L31, L32 and L33 are respectively red light, green light and blue light, and therefore all the second monochromatic light L31, the L32 in the second colour field period S20 can also visually mix with L33, and form the mixed light M2 of white.
Fig. 2 C is the synoptic diagram that the light source luminescent method of the display of another embodiment of the present invention operates in time.See also Fig. 2 C, the light source luminescent method of the display of present embodiment is similar to previous embodiment, only difference be in: after the first monochromatic light L11, L12 and L13 send, in the second colour field period S20 of picture cycle C, wherein the two can side by side not send two second monochromatic light L41, L42 respectively for monochromatic source 110r, 110g and 110b, so that these second monochromatic light L41, L42 visually are mixed into a mixed light M3.
Specifically, according to one second color data D3, monochromatic source 110r sends the second monochromatic light L41, and monochromatic source 110g sends the second monochromatic light L42, and wherein the second monochromatic light L41, L42 are respectively red light and green light.The second color data D3 can be yellow data, and it is used for allowing display show yellow picture, and the effect by persistence of vision, mixed light M3 visually can be sodium yellow.See through mixed light M3, display is able to show yellow picture immediately after showing red, green and blue picture.So, by this yellow picture, present embodiment can also reduce the harmful effect of look segregation phenomenon to image quality.
In addition, in the embodiment that other does not illustrate, can select arbitrarily from monochromatic source 110r, 110g and 110b three that wherein the two comes side by side not send two second monochromatic light, and then the formation color is yellow mixed light M3 in addition, it for example is the carmine light that is mixed with blue light by red light, or the indigo-blue coloured light that is mixed with blue light by green light.So, after showing red, green and blue picture, display can also show carmetta picture or indigo-blue coloured light picture immediately, and reaches the effect that reduces the look segregation phenomenon equally.
In sum, after sending all first monochromatic light, according to second color data, make at least two monochromatic sources in picture cycle, side by side do not send a plurality of second monochromatic light respectively, visually forming a mixed light, and then allow color sequential display after showing red, green and blue picture, display white picture, yellow picture, carmetta picture or indigo-blue coloured light picture immediately are to reduce the harmful effect of look segregation phenomenon to image quality.
Secondly, owing to mixed light is side by side not sent by a plurality of second monochromatic light to form, therefore, when forming mixed light, all monochromatic sources can't be simultaneously luminous, and promptly wantonly two monochromatic sources can be not luminous at the same time, and are excessive with the instantaneous power of avoiding color sequential display.Can reduce the demand of color sequential display like this, and then reduce production costs the more expensive high power electronic assembly of price.
Hence one can see that, and the present invention can not only reduce the harmful effect of look segregation phenomenon to image quality, more can avoid the instantaneous power of color sequential display excessive simultaneously, reduces the demand of color sequential display to the high power electronic assembly, and then reduce production costs.
Though the present invention with previous embodiment openly as above, so it is not in order to limiting the present invention, anyly has the knack of alike skill person, and without departing from the spirit and scope of the present invention, institute does to change and the equivalence replacement of retouching, and still is in the claim protection domain of the present invention.
Claims (10)
1. the light source luminescent method of a display, be applied to a color sequential display with three monochromatic sources, wherein the color of the light that sends of those monochromatic sources differs from one another, in those monochromatic sources in a picture cycle, side by side do not send after a plurality of first monochromatic light according to a plurality of first color data respectively, the light source luminescent method of this display comprises:
According to one second color data, make a plurality of monochromatic sources in this picture cycle, side by side do not send a plurality of second monochromatic light respectively, so that those second monochromatic light visually are mixed into a mixed light.
2. the light source luminescent method of display as claimed in claim 1 is characterized in that, the time of this picture cycle is less than or equal to 16.6 milliseconds.
3. the light source luminescent method of display as claimed in claim 1, it is characterized in that, this picture cycle is divided into a plurality of first colour field periods and one second colour field period, those first monochromatic light are to send in those first colour field periods, and those second monochromatic light are to send in this second colour field period.
4. the light source luminescent method of display as claimed in claim 3 is characterized in that, the time of this first colour field period and/or the second colour field period is between 1 millisecond to 5 milliseconds.
5. the light source luminescent method of display as claimed in claim 3 is characterized in that, a monochromatic source is sent repeatedly second monochromatic light in this second colour field period.
6. the light source luminescent method of display as claimed in claim 1 is characterized in that, respectively this first monochromatic light and/or second monochromatic light are red light, green light or blue light.
7. the light source luminescent method of display as claimed in claim 1 is characterized in that, this mixed light is a white light.
8. the light source luminescent method of display as claimed in claim 1 is characterized in that, this mixed light is a sodium yellow, indigo-blue coloured light or carmine light.
9. the light source luminescent method of display as claimed in claim 1 is characterized in that, those monochromatic sources are respectively a red light source, a green light source and a blue-light source, sends those first monochromatic methods and comprise in picture cycle:
Write a red data;
According to this red data, make this red light source send a red light;
Write a green data;
According to this green data, make this green light source send a green light;
Write a blue data; And
According to this blue data, make this blue-light source send a blue light.
10. the light source luminescent method of display as claimed in claim 1 is characterized in that, before sending those second monochromatic light, also comprises writing this second color data.
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| CN108109574A (en) * | 2017-12-18 | 2018-06-01 | 武汉水草能源科技研发中心(有限合伙) | Time-allocated color display method and device, display screen and traffic signal lamp |
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| CN101414445A (en) * | 2007-10-21 | 2009-04-22 | 立景光电股份有限公司 | Display method |
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| CN101257752A (en) * | 2007-02-23 | 2008-09-03 | 安华高科技Ecbuip(新加坡)私人有限公司 | Color management controller for constant color point in a field sequential lighting system |
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Application publication date: 20110420 |