CN1825424A - Pixel driving method for active display and system thereof - Google Patents
Pixel driving method for active display and system thereof Download PDFInfo
- Publication number
- CN1825424A CN1825424A CNA2005100525617A CN200510052561A CN1825424A CN 1825424 A CN1825424 A CN 1825424A CN A2005100525617 A CNA2005100525617 A CN A2005100525617A CN 200510052561 A CN200510052561 A CN 200510052561A CN 1825424 A CN1825424 A CN 1825424A
- Authority
- CN
- China
- Prior art keywords
- pixel
- drive circuit
- inferior
- tool
- area
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention is a pixel driving method for an active display, for driving plural pixels in the active display to emit light, where each pixel at least has two sub-pixels able to emit different-color lights, and has a transparent luminous region and a drive circuit region, and the sub-pixels have different luminous efficiencies, and the method comprises: increasing the area of the first transparent luminous region of a sub-pixel of lowest luminous efficiency among the sub-pixels to reduce the area of the first drive circuit region in the sub-pixel, thus reducing the generated first drive current; reducing the area of the second transparent luminous region of a sub-pixel of highest luminous efficiency among the sub-pixels to increase the area of the second drive circuit region in the sub-pixel, thus increasing the generated second drive current; connecting the first drive circuit region with the second transparent luminous region to make the first drive current to drive the sub-pixel of highest luminous efficiency to emit light; and connecting the second drive circuit region with the first transparent luminous region to make the second drive current to drive the sub-pixel of lowest luminous efficiency to emit light.
Description
Technical field
The application is a kind of image element driving method of active display and system thereof, more particularly, the invention relates to and a kind ofly can effectively promote the image element driving method and the system thereof of pixel luminosity and reach method in the active display field.
Background technology
In recent years along with scientific-technical progress, the generalization of PC, networking and dissemination of information, display becomes the indispensable key player of human-computer interaction, and constantly progressive display technique has driven display industry development by a stride especially.The general CRT screen of tradition seems thick and heavy, accounts for volume concerning the user, therefore being replaced by thinner thickness and large-sized PDP plasma display panel and more frivolous LCD LCD gradually.
At present, in various emerging flat-panel screens (FPD) technology that other are developing, wherein attract most attention with the application of a new technology " OLED " especially in consumer market.So-called OLED (OrganicLight Emitting Diode, organic light emitting diode, or be called Organic Light-EmittingDisplay, organic light emitting display), can be described as organic electric-excitation luminescent (OrganicElectroluminescence is called for short OEL) again.Utilize the made display of this technology to have frivolous, flexible musical form, portable, full-color high brightness, power saving, angle of visibility and extensively reach advantages such as askiatic ghost, be the new trend of following flat-panel screens.Therefore in recent years, this emerging display technique had attracted the concern of industry and academia especially, and then was engaged in various exploitations and research.
In general, the OLED display can be divided into passive type (Passive Matrix, i.e. PM-OLED) and active (Active Matrix, i.e. AM-OLED) two types according to different type of drive.So-called active driving then is to utilize membrane transistor (Thin Film Transistor, TFT) collocation electric capacity stores signal, controls the intensity gray scale performance of OLED.
See also Fig. 1, this is the pixel arrangement figure of the active organic light-emitting diode (OLED) commonly used, each pixel 10 includes three kinds of different inferior pixels 11,12,13, with at present, these three kinds not homogeneous pixel 11,12,13 normally be respectively the RGB three primary colors light that can send ruddiness, green glow, blue light, present various full-color color according to different blending ratios.In present design, each pixel 10 all is the tool same size, and all inferior pixels 11,12,13 all are designed to the same, all have the same transparency electrode 111,121,131 and the same membrane transistor (TFT) circuit 112,122,132 sizes.Yet with present technical development, the luminescence efficiency of ruddiness time pixel 11 is obviously lower, and green glow time pixel 12 luminescence efficiencys are higher, therefore under such design, high efficiency material often needs to reduce its brightness inefficient material of arranging in pairs or groups, and the brightness meeting of whole like this display is lower.
And the parameter relevant with whole display brightness has following several; Light-emitting area and time elemental area ratio (γ), current density (I/A
ITO), material luminous efficiency (η), its relation is as follows:
B
(Pixel)Be proportional to γ * η * (I/A
ITO)
γ＝A
ITO/A
Pixel
A
Pixel＝A
TFT+A
ITO
Brightness=B that human eye is perceived
(pixel)* γ
Wherein, B
(pixel): pixel is sent brightness, the A of light
Pixel: the area of inferior pixel, A
ITO: the area of ITO and A in the inferior pixel
TFT: the area of TFT circuit in the inferior pixel.
According to corresponding relation recited above, the big young pathbreaker of efficient lighting area ratio (γ) determines the height of display brightness in each time pixel under the situation of fixing elemental area, when effective light-emitting area under identical luminosity, efficient lighting area is big more in the pixel each time, the brightness of display will be high more, otherwise efficient lighting area is more little in the pixel each time, and the brightness of display will be low more.
In addition, existing membrane transistor is under fixing material, desire increases the unique feasible mode of its output current for increasing the length breadth ratio (W/L) of electric crystal passage, because L has minimum limit on processing procedure, so need bigger electric current to have only the W of increasing method, in case W increases, the area of membrane transistor also can and then increase, yet each time of display panel effective light-emitting area of pixel will diminish.
Yet the luminescence efficiency of luminous organic material (η) is exactly the luminosity of efficient lighting area with the product of current density; because can send R, G respectively, the trichromatic luminescent material of B all has different luminescence efficiencys, so we pursue the target that display has high brightness and polychrome rank and usually can be subject to the material that hangs down luminescence efficiency.For example: the luminescent material that sends ruddiness has lower efficient usually, so need bigger electric current to reach higher brightness, but, the electric current of membrane transistor as desiring to provide higher, also can need bigger area, therefore, (elemental area is fixed) getable brightness has a upper limit in sending the inferior pixel 11 of ruddiness.
Therefore, also there is pair pixel design to improve at present, see also Fig. 2, it is the pixel improved arrangement figure for commonly using, disposed different elemental areas according to the different luminescence efficiencys of luminescent material, wherein provide maximum inferior elemental area so that ruddiness time pixel intensity promotes for the relatively poor ruddiness time pixel 21 of luminescence efficiency, green glow time pixel 22 for luminescence efficiency the best then is to have disposed minimum inferior elemental area, and the area of the blue light time pixel 23 that luminescence efficiency is medium then is between ruddiness time pixel 21 and green glow time pixel 22.
Yet, so the pixel arrangement mode still has shortcoming, because whole display need be condescended to take this post in the quantity of ruddiness time pixel 21, therefore the configuration quantity of green glow time pixel 22 and blue light time pixel 23 also will be equal to the quantity of ruddiness time pixel 21, so will strengthen the area (please comparing) of whole pixel 20 with the pixel 10 of Fig. 1, the quantity that pixel 20 can be configured in the display obviously tails off, wasted the pixel arrangement space of display, the resolution of display will tail off, and the area of green glow time pixel 22 dwindled also can reduce its γ value, so its brightness also can descend.
Moreover, except the factor of brightness, when luminous organic material is operated under higher current density usually, the half life period of its brightness is shorter than and operates under the low current density, so best display is exactly to make the material with relatively poor brightness half life period and relatively poor efficient have the higher effective light-emitting area, but under the existing design, in a pixel, best efficient lighting area that can reach and bigger drive current still are not enough to reach the demand of display high brightness, high-res, high color range.
Indulge the above, because active organic display still has disappearance in practical application now, so the inventor invents out this case " image element driving method of active display and system thereof " in view of the disappearance of above-mentioned known techniques.
Summary of the invention
The fundamental purpose of this case is to provide a kind of image element driving method and system thereof of active display, it is with the mutual electrically connect of inferior pixel of the different luminescence efficiencys of tool in each pixel, it is luminous to cause driving circuit on the higher inferior pixel of luminescence efficiency to can be used to the relatively poor inferior pixel of driven for emitting lights efficient, and allows the relatively poor inferior pixel of luminescence efficiency effectively promote its brightness.
Another purpose of this case is to provide a kind of image element driving method and system thereof of active display, utilize the collocation of suitable elemental area and TFT drive current, can under same elemental area, effectively improve the brightness of display, and can effectively improve the life-span of display.
The another purpose of this case is for providing a kind of image element driving method of active display, luminous in order to drive in the active display a plurality of pixels, wherein each pixel has two the inferior pixels (sub-pixel) that can send different color at least, respectively have a transparent luminescent district and one drive circuit district each time in the pixel, this grade pixel has more different luminescence efficiencys, this method is to comprise the following step: the area that improves the first transparent luminescent district of the inferior pixel of the minimum luminescence efficiency of tool in these the inferior pixels that can send different color, cause the area of first drive circuit area in the minimum luminescence efficiency of this tool time pixel to reduce, and then reduce by first drive current that this first drive circuit area is produced; Reduce the area in the second transparent luminescent district of the inferior pixel of the high-luminous-efficiency of tool in these the inferior pixels that can send different color, cause the second drive circuit area area in the high-luminous-efficiency of this tool time pixel to increase, and then promote second drive current that this second drive circuit area is produced; With this first drive circuit area and this second transparent luminescent district electrically connect, it is luminous to cause this first drive current to be driven the inferior pixel of the high-luminous-efficiency of this tool; And with this second drive circuit area and this first transparent luminescent district electrically connect, it is luminous to cause this second drive current to be driven the inferior pixel of the minimum luminescence efficiency of this tool.
According to above-mentioned conception, the circuit that these drive circuit area are made up of at least one membrane transistor (TFT) is to produce these drive currents.
According to above-mentioned conception, the step that reduces this first drive circuit area area is that the width (W) for the length breadth ratio (W/L) of electric crystal passage that will this at least one membrane transistor reduces, the electric current that provides this first drive current one relatively low is provided, and the step that increases this second drive circuit area area to be width (W) for the length breadth ratio (W/L) of electric crystal passage that will this at least one membrane transistor increase, the electric current that provides this second drive current one higher relatively is provided.
According to above-mentioned conception, this grade pixel has more different luminescent materials to send the light of different color, and these transparent luminescent districts are formed by a transparency electrode that is coated with these luminescent materials and transmissive bright dipping, and this transparency electrode is to be a tin indium oxide (ITO) electro-conductive glass.
According to above-mentioned conception, the electrically connect mode between these drive circuit area and these transparent luminescent districts can be reached by following manner.At first, can by a pixel form processing procedure with in different conductting layers, carry out mutual electrically connect between inferior pixel with inferior pixel of the high-luminous-efficiency of this tool and the minimum luminescence efficiency of this tool, next can be with the allocation position exchange in first drive circuit area of the inferior pixel of the minimum luminescence efficiency of this tool and the first transparent luminescent district or can be with second drive circuit area of the inferior pixel of the high-luminous-efficiency of this tool and the allocation position exchange in the second transparent luminescent district.
According to above-mentioned conception, this pixel is made of the inferior pixel that can send one red (Red), one green (Green) and an indigo plant (Blue) three primary colors (primary colors) light, and the inferior pixel of the minimum luminescence efficiency of this tool is an inferior pixel for the inferior pixel that can send ruddiness and the high-luminous-efficiency of this tool is for can sending the inferior pixel of green glow, and this grade pixel has identical fixed measure.
According to above-mentioned conception, this active display is to be an active-matrix formula organic light emitting diode (AM-OLED), and this active-matrix formula organic light emitting diode can be a micromolecule organic light emitting diode (OLED) or a high molecular polymer organic light emitting diode (Polymer OLED or PLED).
The application's another purpose is useful in the active display for a kind of pixel drive system is provided, and it includes: a pixel (sub-pixel) for the first time has one first transparent luminescent district and one first drive circuit area; An and pixel for the second time, have one second transparent luminescent district and one second drive circuit area, wherein, this first drive circuit area is and this second transparent luminescent district electrically connect, use that to drive this pixel luminous second time, this second drive circuit area be with this first transparent luminescent district electrically connect, use that to drive this pixel luminous first time.
According to above-mentioned conception, more comprise a pixel for the third time, with with this first time pixel and this second time pixel constituting a complete pixel (pixel), and this first, second be to include the luminescent material that can send different color respectively also respectively to have different luminescence efficiencys with pixel for the third time.
According to above-mentioned conception, this for the third time the luminescence efficiency of pixel be luminescence efficiency greater than this of pixel first time, the luminescence efficiency of pixel is greater than this luminescence efficiency of pixel for the third time for the second time.
According to above-mentioned conception, the area of this second drive circuit area is the area greater than this first drive circuit area, cause drive current that this second drive circuit area produced greater than this first survivor that drive circuit area is produced, thereby the area in this first transparent luminescent district is the area greater than this second transparent luminescent district.
According to above-mentioned conception, this first transparent luminescent district is relative with this second drive circuit area, and this second transparent luminescent district is relative with this first drive circuit area.Can be relative with this second transparent luminescent district with this first transparent luminescent district maybe also, and be relative with this second drive circuit area with this first drive circuit area.
According to above-mentioned conception, this different color is to include red, green, blue (RGB) three primary colors.
The another purpose of this case is for providing a kind of image element driving method, in order to drive the pixel in the active display, wherein this pixel inferior pixel that can send different color by three and have different luminescence efficiencys is formed, the inferior pixel that wherein driving circuit in the inferior pixel of the high-luminous-efficiency of tool in this grade pixel is driven the minimum luminescence efficiency of tool in this grade pixel is luminous, and it is luminous that the driving circuit in the inferior pixel of the minimum luminescence efficiency of tool in this grade pixel is driven the inferior pixel of the high-luminous-efficiency of tool in this grade pixel.
According to above-mentioned conception, more comprise a step: improve the electric current that driving circuit produced in the inferior pixel of the high-luminous-efficiency of tool in this grade pixel, this step that wherein improves electric current in the inferior pixel of the high-luminous-efficiency of this tool is to reach by the driving circuit area of the inferior pixel that increases the high-luminous-efficiency of this tool.
According to above-mentioned conception, more comprise a step: reduce the electric current that driving circuit produced in the inferior pixel of the minimum luminescence efficiency of tool in this grade pixel, this step that wherein reduces electric current in the inferior pixel of the minimum luminescence efficiency of this tool is to reach by the driving circuit area of this time pixel that reduces the minimum luminescence efficiency of tool.
The application's effect and purpose can be by following embodiment explanations, so that more deep understanding to be arranged.
Description of drawings
Fig. 1 is the pixel arrangement synoptic diagram for the active organic light-emitting diode of commonly using (OLED).
Fig. 2 is the pixel arrangement synoptic diagram for the active organic light-emitting diode of commonly using (OLED).
Fig. 3 is the pixel drive system single pixel arrangement synoptic diagram wherein for a kind of active display of this case first preferred embodiment.
Fig. 4 is the pixel drive system single pixel arrangement synoptic diagram wherein for a kind of active display of this case second preferred embodiment.
The main element symbol description
10,20,30,40 pixels
11,21,31,41 ruddiness time pixel
111,121,131 transparency electrodes
112,122,132 TFT circuit
12,22,32,42 green glows time pixel
13,23,33,43 blue lights time pixel
311,411 first transparent luminescent districts
312,412 first drive circuit area
321,421 second transparent luminescent districts
322,422 second drive circuit area
331,431 the 3rd transparent luminescent districts
332,432 the 3rd drive circuit area
34,44 electrically connects
Embodiment
Will be in the present invention hereinafter be described, being familiar with present technique person must understanding explanation hereinafter only be as illustration usefulness, and is not used in restriction the present invention.
Below be described at the pixel drive system of this case preferred embodiment, but actual system configuration and the method that is adopted must not meet the framework and the method for description fully, have the knack of this skill person when under the situation that does not break away from practicalness of the present invention and scope, making many variations and modification.
Because in present active display, different luminescent material (RGB three primary colors) respectively has different luminescence efficiencys, cause the brightness performance meeting of each time pixel in single pixel inconsistent, the practical manifestation of the inferior pixel of the low luminescence efficiency of tool can obviously drag down the brightness performance of whole pixel, so the present invention mainly is the brightness performance that has the inferior pixel of different luminescence efficiencys by the drive pattern that reconfigures inferior pixel wherein in single pixel with effective lifting.
See also Fig. 3, it is the pixel drive system schematic for a kind of active display of this case first preferred embodiment.For the purpose of simplifying the description, only with single pixel 30 explanations, this pixel 30 disposes the inferior pixel 31,32,33 of three identical sizes, wherein time pixel 31 can be sent ruddiness (R), inferior pixel 32 can be sent green glow (G), inferior pixel 33 can be sent blue light (B), for convenience of description, below will abbreviate ruddiness time pixel 31, green glow time pixel 32 and blue light time pixel 33 respectively as.The color scheme of this RGB is to become specification for the most basic present pixel groups, yet also can set up or additional configuration goes out inferior pixel of the inferior pixel of various varying numbers or different color combination, for example increase blue or green (cyan), fuchsin (magenta) and yellow (yellow) CMY printing three primary colors or emerald (emerald) and form that RGBCNY six look colors are formed or RGBE four look colors composition according to actual demand.
Wherein, this ruddiness time pixel 31 has one first transparent luminescent district 311 and one first drive circuit area 312, this green glow time pixel 32 has one second transparent luminescent district 321 and one second drive circuit area 322 and this blue light time pixel 33 and has one the 3rd transparent luminescent district 331 and one the 3rd drive circuit area 332, and with present technical development, the luminescence efficiency that luminescent material produced in this ruddiness time pixel 31 is obviously lower, the luminescence efficiency that luminescent material produced in higher this blue light of the luminescence efficiency that luminescent material produced time pixel 33 in this green glow time pixel 32 then falls between, therefore the area with the first transparent luminescent district 311 of this ruddiness time pixel 31 strengthens, the area in the second transparent luminescent district 321 of this green glow time pixel 32 is reduced, and because of the area of this grade pixel is all fixed, so the area of this first drive circuit area 312 will be less than the area of this second drive circuit area 322.
And say according to aforesaid prior art, when the area of the TFT circuit of being made up of at least one membrane transistor (TFT) (being the drive circuit area that this place refers to) increases, the width (W) of length breadth ratio (W/L) that promptly is the electric crystal passage of membrane transistor increases, so can produce high drive current, otherwise, when area reduces, then be the width (W) that reduces the length breadth ratio (W/L) of its electric crystal passage, so drive current can reduce.
Therefore, the application carries out an electrically connect 34 with this first drive circuit area 312 with this second transparent luminescent district 321, it is luminous that the drive current that causes this first drive circuit area 312 to be produced is driven the second transparent luminescent district 321 of this time pixel 32, simultaneously also this second drive circuit area 322 is carried out an electrically connect 34 with this first transparent luminescent district 311, it is luminous that the drive current that causes this second drive circuit area 322 to be produced is driven the first transparent luminescent district 311 of this time pixel 31.
Wherein, these transparent luminescent districts the 311,321, the 331st formed by a transparency electrode that is coated with these RGB luminescent materials and can transmit rgb light respectively, and this transparency electrode are to be a tin indium oxide (ITO) electro-conductive glass.In addition, this active display can be a micromolecule organic light emitting diode (Small Molecular, Light-Emitting Diode, OLED) or a high molecular polymer organic light emitting diode (Polymer Organic Light-Emitting Diode, Polymer OLED or claim PLED) active-matrix formula organic light emitting diode (Active Matrix Organic Light-Emitting Diode, AM-OLED).
So, according to aforesaid pixel drive principle, it is luminous just can to utilize driving circuit in the higher inferior pixel of luminescence efficiency to come on the relatively poor inferior pixel of driven for emitting lights efficient, and can not be limited in same pixel, and the degree of freedom that may command is adjusted also increases relatively.
And about the mutual drive arrangements between two inferior pixels, promptly be that the mode of reaching electrically connect then can so that the electrically connect between two pixels carries out, be avoided the problem of phase mutual interference by adjusting on the processing procedure that forms in pixel on different conductting layers.In addition, also can be by setting about on the aspect of changing the relative position between each time pixel, promptly as shown in Figure 4, this is the pixel arrangement synoptic diagram of this case second preferred embodiment.
In Fig. 4, the relevant configuration of most pixel is all similar with Fig. 3, only the structure of this ruddiness time pixel 41 is the positions of having changeed 180 degree, so that its first transparent luminescent district 411 is positioned at the below, its second drive circuit area 412 then is positioned at the top, cause the first transparent luminescent district 411 of this ruddiness time pixel 41 relative with the second drive current district 422 of this green glow time pixel 42, the first drive current district 412 of this ruddiness time pixel 41 is then relative with the second transparent luminescent district 421 of this green glow time pixel 42.Therefore, under this arrangement mode, two adjacent inferior pixel 41,42 natures can exchange each other and use its drive circuit area 412,422, by mutual electrically connect 44, it is luminous that the drive current that causes the first drive current district 412 that can make this ruddiness time pixel 41 to be produced is driven the second transparent luminescent district 421 of this green glow time pixel 42, it is luminous that the drive current that also allows simultaneously second drive circuit area 422 of this green glow time pixel 42 be produced is driven the first transparent luminescent district 411 of this ruddiness time pixel 41, and also do not need additionally to increase unnecessary processing procedure.
So, can be according to aforementioned pixel drive mode, utilize the collocation and the calculating of suitable elemental area and drive current, in order under same inferior elemental area, effectively improve the overall brightness of display, and also can effectively overcome the brightness half life period problem of luminescent material and improve the bulk life time of display, and owing to still be to use identical inferior pixel specification also can not waste original pixel arrangement space of display.In addition, can make that also the color range adjustment of external drive IC control different colours is more or less freely by change to drive current, and then the drive IC of LCD of also can having an opportunity to use jointly, and effectively reduce production costs.
In sum, this case can provide a kind of image element driving method and system thereof of active display really, its broken through original only can be in inherent limitations with driven for emitting lights in dot structure, be the form that adopts mutual driven for emitting lights on the contrary, its with in the same pixel wherein the driving circuit of the inferior pixel of the high-luminous-efficiency of tool to drive in this pixel the inferior pixel of the minimum luminescence efficiency of tool luminous, and it is luminous that the driving circuit in the inferior pixel of the minimum luminescence efficiency of tool in this pixel is driven the inferior pixel of the high-luminous-efficiency of tool in this pixel, so allowing the relatively poor inferior pixel of luminescence efficiency can obtain high drive current effectively promotes its brightness and effectively controls its brightness half life period, and then can improve the overall brightness of integral display, that can also improve display wholely carries the life-span, and processing procedure need not increase, manufacturing cost need not improve, the method technology is simple, can use the field extensive, the value of real tool industry is so propose application for a patent for invention in accordance with the law.
The above is to utilize preferred embodiment to describe the present invention in detail, but not limit the scope of the invention, therefore the personage who knows this skill should be able to understand, suitably do slightly change and adjustment, will not lose main idea of the present invention place, also do not break away from the spirit and scope of the present invention, the former capital should be considered as further enforcement situation of the present invention.
The application must be thought and is to modify the right neither the application of taking off Protector that claim is desired as all by the personage Ren Shi craftsman who has the knack of this technology.
Claims (14)
1. the image element driving method of an active display, luminous in order to drive in the active display a plurality of pixels, wherein each pixel has two the inferior pixels (sub-pixel) that can send different color at least, respectively have a transparent luminescent district and one drive circuit district each time in the pixel, this grade pixel has more different luminescence efficiencys, and this method is to comprise the following step:
Improve the area in the first transparent luminescent district of the inferior pixel of the minimum luminescence efficiency of tool in these the inferior pixels that can send different color, cause the area of first drive circuit area in the minimum luminescence efficiency of this tool time pixel to reduce, and then reduce by first drive current that this first drive circuit area is produced, improve the area in the first transparent luminescent district;
Reduce the area in the second transparent luminescent district of the inferior pixel of the high-luminous-efficiency of tool in these the inferior pixels that can send different color, cause the second drive circuit area area in the high-luminous-efficiency of this tool time pixel to increase, and then promote second drive current that this second drive circuit area is produced;
With this first drive circuit area and this second transparent luminescent district electrically connect, it is luminous to cause this first drive current to be driven the inferior pixel of the high-luminous-efficiency of this tool; And
With this second drive circuit area and this first transparent luminescent district electrically connect, it is luminous to cause this second drive current to be driven the inferior pixel of the minimum luminescence efficiency of this tool.
2. image element driving method as claimed in claim 1, wherein:
The circuit that these drive circuit area are made up of at least one membrane transistor (TFT) is to produce these drive currents;
This step that reduces this first drive circuit area area is that the width (W) for the length breadth ratio (W/L) of electric crystal passage that will this at least one membrane transistor reduces, and the electric current that provides this first drive current one relatively low is provided; And/or
This step that increases this second drive circuit area area is that the width (W) for the length breadth ratio (W/L) of electric crystal passage that will this at least one membrane transistor increases, and the electric current that provides this second drive current one higher relatively is provided.
3. image element driving method as claimed in claim 1, wherein:
This grade pixel has more different luminescent materials to send the light of different color;
These transparent luminescent districts are formed by a transparency electrode that is coated with these luminescent materials and transmissive bright dipping; And/or
This transparency electrode is to be a tin indium oxide (ITO) electro-conductive glass.
4. image element driving method as claimed in claim 1, wherein this active display is to be an active-matrix formula organic light emitting diode (Active Matrix Organic Light-Emitting Diode, AM-OLED), and this active-matrix formula organic light emitting diode is to be a micromolecule organic light emitting diode (Small Molecular Light-Emitting Diode, OLED) or a high molecular polymer organic light emitting diode (Polymer Organic Light-Emitting Diode, Polymer OLED or claim PLED).
5. image element driving method as claimed in claim 1, wherein:
This pixel is made of the inferior pixel that can send one red (Red), one green (Green) and an indigo plant (Blue) three primary colors (primary colors) light;
The inferior pixel of the minimum luminescence efficiency of this tool is for sending the inferior pixel of ruddiness; And/or
The inferior pixel of the high-luminous-efficiency of this tool is for sending the inferior pixel of green glow.
6. image element driving method as claimed in claim 1, wherein the electrically connect mode between these drive circuit area and these transparent luminescent districts:
Be to form processing procedure in different conductting layers, to carry out mutual electrically connect between the inferior pixel with the inferior pixel of the high-luminous-efficiency of this tool and the minimum luminescence efficiency of this tool by a pixel;
Be that first drive circuit area of the inferior pixel of the minimum luminescence efficiency of this tool and the allocation position in the first transparent luminescent district are exchanged; Or
Be that second drive circuit area of the inferior pixel of the high-luminous-efficiency of this tool and the allocation position in the second transparent luminescent district are exchanged.
7. a pixel drive system is useful in the active display, and it includes:
One pixel (sub-pixel) for the first time has one first transparent luminescent district and one first drive circuit area; And
One pixel for the second time has one second transparent luminescent district and one second drive circuit area;
Wherein, this first drive circuit area is and this second transparent luminescent district electrically connect, uses that to drive this second time pixel luminous, this second drive circuit area be with this first transparent luminescent district electrically connect, to use driving this of pixel luminous first time.
8. pixel drive as claimed in claim 7 system more comprises a pixel for the third time, with this first time pixel and this second time pixel to constitute a complete pixel (pixel), wherein:
This first, second be to include the luminescent material that can send different color respectively and respectively have different luminescence efficiencys with pixel for the third time;
This for the third time the luminescence efficiency of pixel be luminescence efficiency greater than this of pixel first time;
This, luminescence efficiency of pixel was greater than this luminescence efficiency of pixel for the third time second time;
This first, second have identical fixed measure respectively with pixel for the third time;
The area of this second drive circuit area is the area greater than this first drive circuit area, causes drive current that this second drive circuit area produced greater than this first survivor that drive circuit area is produced; And/or
The area in this first transparent luminescent district is the area greater than this second transparent luminescent district.
9. pixel drive as claimed in claim 7 system, wherein:
This first transparent luminescent district is relative with this second drive circuit area; And/or
This second transparent luminescent district is relative with this first drive circuit area.
10. pixel drive as claimed in claim 7 system, wherein:
This first transparent luminescent district is relative with this second transparent luminescent district; And/or
This first drive circuit area is relative with this second drive circuit area.
11. pixel drive as claimed in claim 7 system, wherein:
This different color is to include red, green, blue (RGB) three primary colors; And/or
This first and second transparent luminescents district is formed by a transparency electrode that is coated with these luminescent materials and penetrable bright dipping.
12. image element driving method, in order to drive the pixel in the active display, wherein this pixel inferior pixel that can send different color by three and have different luminescence efficiencys is formed, the inferior pixel that it is characterized in that the driving circuit in the inferior pixel of the high-luminous-efficiency of tool in this grade pixel is driven the minimum luminescence efficiency of tool in this grade pixel is luminous, and it is luminous that the driving circuit in the inferior pixel of the minimum luminescence efficiency of tool in this grade pixel is driven the inferior pixel of the high-luminous-efficiency of tool in this grade pixel.
13. image element driving method as claimed in claim 12, more comprise a step: improve the electric current that driving circuit produced in the inferior pixel of the high-luminous-efficiency of tool in this grade pixel, this step that wherein improves electric current in the inferior pixel of the high-luminous-efficiency of this tool is to reach by the driving circuit area of the inferior pixel that increases the high-luminous-efficiency of this tool.
14. image element driving method as claimed in claim 12, more comprise a step: reduce the electric current that driving circuit produced in the inferior pixel of the minimum luminescence efficiency of tool in this grade pixel, this step that wherein reduces electric current in the inferior pixel of the minimum luminescence efficiency of this tool is to reach by the driving circuit area of this time pixel that reduces the minimum luminescence efficiency of tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100525617A CN1825424A (en) | 2005-02-23 | 2005-02-23 | Pixel driving method for active display and system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100525617A CN1825424A (en) | 2005-02-23 | 2005-02-23 | Pixel driving method for active display and system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1825424A true CN1825424A (en) | 2006-08-30 |
Family
ID=36936064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005100525617A Pending CN1825424A (en) | 2005-02-23 | 2005-02-23 | Pixel driving method for active display and system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1825424A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226080A (en) * | 2015-11-18 | 2016-01-06 | 上海天马有机发光显示技术有限公司 | A kind of display unit and manufacture method thereof |
| CN108538253A (en) * | 2018-04-23 | 2018-09-14 | 深圳市华星光电半导体显示技术有限公司 | The pixel driver system and driving method of displayer |
| CN110120190A (en) * | 2019-04-10 | 2019-08-13 | 深圳康佳电子科技有限公司 | A kind of Micro LED display panel and its control method |
| CN111415614A (en) * | 2020-03-20 | 2020-07-14 | 杭州德亚照明工程有限公司 | Display screen debugging processing method and device |
-
2005
- 2005-02-23 CN CNA2005100525617A patent/CN1825424A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226080A (en) * | 2015-11-18 | 2016-01-06 | 上海天马有机发光显示技术有限公司 | A kind of display unit and manufacture method thereof |
| CN105226080B (en) * | 2015-11-18 | 2018-09-25 | 上海天马有机发光显示技术有限公司 | A kind of display device and its manufacturing method |
| CN108538253A (en) * | 2018-04-23 | 2018-09-14 | 深圳市华星光电半导体显示技术有限公司 | The pixel driver system and driving method of displayer |
| CN110120190A (en) * | 2019-04-10 | 2019-08-13 | 深圳康佳电子科技有限公司 | A kind of Micro LED display panel and its control method |
| CN111415614A (en) * | 2020-03-20 | 2020-07-14 | 杭州德亚照明工程有限公司 | Display screen debugging processing method and device |
| CN111415614B (en) * | 2020-03-20 | 2021-08-24 | 杭州德亚照明工程有限公司 | Display screen debugging processing method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1815750A (en) | Image structure mode of color display device, device and method for color display | |
| CN1839478A (en) | OLED device having microcavity gamut subpixels | |
| CN1809936A (en) | Stacked OLED display having improved efficiency | |
| US20190206950A1 (en) | Display panel and display device | |
| US20060152531A1 (en) | Method and system for driving pixel in active matrix display | |
| CN1604707A (en) | Organic electroluminescence display panel | |
| CN104835832A (en) | Pixel arrangement structure, organic electroluminescent device, display device, and mask plate | |
| CN1454030A (en) | Organic electroluminescent display device | |
| CN1992329A (en) | Electro-luminescent display panel | |
| CN101076844A (en) | Pixel layout for displays | |
| CN204614789U (en) | Pixel arrangement structure, organic electroluminescence device, display unit, mask plate | |
| CN1602121A (en) | Top lighting organic electroluminescent display device | |
| CN1917228A (en) | Organic electroluminescent device and fabrication method thereof | |
| CN1689064A (en) | Full-color organic electro-luminescent display device | |
| CN1604698A (en) | Electroluminescence display device | |
| CN1825424A (en) | Pixel driving method for active display and system thereof | |
| CN1391202A (en) | EL display device, EL illuminating device and driving method and liquid crystal device | |
| CN101051649A (en) | Organic electric exciting light emitting device, photoelectric device and its forming method | |
| CN1874000A (en) | Display faceplate of full color organic electroluminescence, and fabricating method | |
| CN1296881C (en) | Digital video display device | |
| CN1650340A (en) | Display device and electronic apparatus | |
| CN110164325B (en) | Pixel structure, display panel and display device | |
| KR100589785B1 (en) | Pixel structure of organic electro luminescence display apparatus | |
| TW201517260A (en) | Active matrix organic light emitting diode pixel | |
| CN2708433Y (en) | Four-lamp arrangement for LED with four key colors |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |