CN101625832A - Organic light emitting display and method for driving the same background - Google Patents
Organic light emitting display and method for driving the same background Download PDFInfo
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Abstract
In an organic light emitting display, a gamma can be applied according to color regardless of the sequence of data output from a data driver, even if a separate gamma by color is used. A method for driving the organic light emitting display is also provided.
Description
Technical field
Embodiments of the invention relate to organic light emitting display and drive the method for organic light emitting display.
Background technology
Recently various, flat-panel monitors that volume is little more in light weight have been developed than cathode-ray tube (CRT).These flat-panel monitors comprise LCD, field-emitter display, plasma display, organic light emitting display or the like.
Wherein, organic light emitting display has various advantages, and for example colorrendering quality is good, thickness is little or the like, and therefore except that cell phone, the application of organic light emitting display expands to PDA, MP3 or the like just rapidly.
Organic light emitting display is utilized Organic Light Emitting Diode (OLED) display image, and the brightness of Organic Light Emitting Diode is determined corresponding to the magnitude of current of input.
Organic Light Emitting Diode comprises redness, green or the blue light-emitting layer between anode and negative electrode, and has according to current amount flowing between anode and the negative electrode and definite brightness.
At this moment, red, green is formed by different materials respectively with blue light-emitting layer, and therefore each layer in redness, green and blue light-emitting layer applies independently gamma.
Summary of the invention
An aspect according to the embodiment of the invention provides a kind of organic light emitting display and a kind of method that drives organic light emitting display, in this organic light emitting display, even use according to color gamma independently, also can be no matter data apply gamma according to color under the situation of the order of data driver output.
According to an aspect of the present invention, provide a kind of organic light emitting display, comprising: the viewing area, comprise a plurality of pixels, each pixel comprises at least two sub-pixels with different colours; Data driver is used for to the signal wire outputting data signals; With the data-signal switch, be used for receiving described data-signal by described signal wire, and transmitting described data-signal to described sub-pixel by data line, described data-signal switch is configured to switch described data-signal according to the data switching signal between two sub-pixels of sub-pixel described in the same pixel of described pixel.
According to a further aspect in the invention, a kind of method that is used for suitable gamma correction is applied to the data-signal of display device is provided, described display device comprises a plurality of pixels, each pixel comprises first sub-pixel, second sub-pixel and the 3rd sub-pixel, described method comprises: the first gamma correction factor is applied to first color signal, to produce first data-signal that will be applied to described first sub-pixel or described the 3rd sub-pixel; The second gamma correction factor is applied to second color signal, to produce second data-signal that will be applied to described second sub-pixel; The 3rd gamma correction factor is applied to the 3rd color signal, to produce the 3rd data-signal that will be applied to described first sub-pixel or described the 3rd sub-pixel; And between described first sub-pixel and the 3rd sub-pixel, switch described first data-signal and the 3rd data-signal according to the data switching signal.
Therefore, even use according to color gamma independently, also can be no matter data apply gamma according to color under the situation of the order of data driver output.
Description of drawings
Accompanying drawing is with application documents illustration one exemplary embodiment of the present invention, and is used from instructions one and explains principle of the present invention.
Figure 1A is the structural drawing according to the organic light emitting display of the embodiment of the invention;
Figure 1B is the structural drawing according to the organic light emitting display of the embodiment of the invention;
Fig. 2 is the structural drawing that the pixel arrangement in the pixel cell of organic light emitting display of Fig. 1 is shown;
Fig. 3 is the circuit diagram of the gammate that uses in the organic light emitting display that illustrates according to the embodiment of the invention;
Fig. 4 is the circuit diagram of first embodiment of the gamma converting unit used in the organic light emitting display that illustrates according to the embodiment of the invention;
Fig. 5 is the circuit diagram of second embodiment of the gamma converting unit used in the organic light emitting display that illustrates according to the embodiment of the invention; And
Fig. 6 is the circuit diagram of the 3rd embodiment of the gamma converting unit used in the organic light emitting display that illustrates according to the embodiment of the invention.
Embodiment
Describe according to one exemplary embodiment of the present invention hereinafter with reference to accompanying drawing.
Figure 1A and Figure 1B are the structural drawing according to the organic light emitting display of the embodiment of the invention.Referring to Figure 1A and 1B, organic light emitting display comprises pixel cell 100, data driver 200, scanner driver 300, gammate 400 and gamma converting unit 500.And data driver 200 and gamma converting unit 500 are positioned at pixel cell 100 tops or pixel cell 100 belows.
And pixel cell 100 is by receiving first electric power and second electric power is driven.Therefore, pixel cell 100 is according to sweep signal, data-signal, luminous signal, first electric power and second electric power and luminous, to come display image according to the electric current that flows in the Organic Light Emitting Diode.A plurality of pixels also comprise redness, green and blue subpixels.
Fig. 2 is the structural drawing that the pixel arrangement in the pixel cell of organic light emitting display of Figure 1A and 1B is shown.Referring to Fig. 2, a pixel 101 of pixel cell 100 comprises three sub-pixels, and these three sub-pixels comprise red sub-pixel 101R, green sub-pixels 101G and blue subpixels 101B.Each sub-pixel 101R, 101G and 101B are connected to data line to receive data-signal.
In addition, red sub-pixel 101R, green sub-pixels 101G and blue subpixels 101B place each pixel 101 according to from left to right order.
Under first kind of situation, first output channel links to each other with the pixel that is applied in red gamma, reception red data signal and express red.Second output channel pixel green with being applied in green gamma, reception green data signal and performance links to each other.The 3rd output channel links to each other with being applied in blue gamma, receiving data blue signal and showing blue pixels.Under second kind of situation, first output channel links to each other with being applied in red gamma, receiving data blue signal and showing blue pixels.Second output channel pixel green with being applied in green gamma, reception green data signal and performance links to each other.The 3rd output channel links to each other with the pixel that is applied in blue gamma, reception red data signal and express red.
Therefore, under first kind of situation, express red, green and blue pixels are applied in redness, green and blue gamma, thereby show every kind of brightness that color is correct.Yet under second kind of situation, express red, green and blue pixels are applied in blueness, green and red gamma, therefore do not show every kind of brightness that color is correct.
In order to address this problem, between data driver 200 and pixel cell 100, connect gamma converting unit 500, thereby permission will be applied in the pixel that the data-signal of red gamma passes to express red, the data-signal that permission will be applied in green gamma passes to the green pixel of performance, and the data-signal that allows to be applied in blue gamma passes to the performance blue pixels.
Fig. 3 is the circuit diagram of the gammate that uses in the organic light emitting display that illustrates according to the embodiment of the invention.Referring to Fig. 3, there are three gammates 400 to be applied to redness, green and data blue signal.
Each gammate 400 comprises register cell 60, resistor ladder 61, amplitude control register 62, curve controlled register 63, first selector 64 to the 6th selector switchs 69 and grayscale voltage amplifier 70.
If gammate 400 is red gammate, then register cell 60 is stored register be provided with value correct to redness, if gammate 400 is green gammate, then register cell 60 is stored register be provided with value correct to green, if and gammate 400 is blue gammate, register cell 60 storages register be provided with value correct then to blueness.In other words, when gammate 400 is connected to red pixel with the execution gamma correction, register cell 60 storages register be provided with value correct to red pixel.When gammate 400 is connected to green pixel with the execution gamma correction, register cell 60 storages register be provided with value correct to green pixel.When gammate 400 is connected to blue pixel with the execution gamma correction, register cell 60 storages register be provided with value correct to blue pixel.
In the register value that is stored in register cell 60, respectively, 10 high-order bits are transfused in the amplitude control register 62, and 16 bits of low level are transfused in the curve controlled register 63, thereby are selected as the register value of setting.
Resistor ladder 61 has such configuration, and in this configuration, a plurality of variohms are one another in series and are connected between maximum level voltage VHI and the minimum level voltage VLO, and generates a plurality of grayscale voltages by resistor ladder 61.
Amplitude control register 62 is exported 3 bit register values of setting to first selector 64, and to second selector 65 outputs 7 bit register values of setting.At this moment, can increase the number of optional gray scale, and can select different grayscale voltages by changing the register value of setting by the number that increase is provided with bit.
Curve controlled register 63 is respectively to third selector 66 to the 6th selector switchs 69 outputs 4 bit register values of setting.At this moment, can change the register value of setting, and can control optional grayscale voltage according to the register value of setting.
Amplitude control register 62 is transfused to 10 high-order bit register signals, and curve controlled register 63 is transfused to 16 bit register signals of low level.
First selector 64 in a plurality of grayscale voltages of dividing by resistor ladder 61, select with amplitude control register 62 in the corresponding grayscale voltage of 3 bit register values of setting, and export the highest grayscale voltage of this grayscale voltage conduct.
Second selector 65 in a plurality of grayscale voltages of dividing by resistor ladder 61, select with amplitude control register 62 in the corresponding grayscale voltage of 7 bit register values of setting, and export this grayscale voltage as minimum grayscale voltage.
Third selector 66 by a plurality of resistance row will from the grayscale voltage of first selector 64 outputs be a plurality of grayscale voltages from the voltage division between the grayscale voltage of second selector 65 outputs, and selection to be exported with the corresponding grayscale voltage of 4 bit register values of setting.
The 4th selector switch 67 by a plurality of resistance row will from the grayscale voltage of first selector 64 outputs be a plurality of grayscale voltages from the voltage division between the grayscale voltage of third selector 66 outputs, and selection to be exported with the corresponding grayscale voltage of 4 bit register values of setting.
Select in the grayscale voltage of the 5th selector switch 68 between first selector 64 and the 4th selector switch 67 and output and the corresponding grayscale voltage of 4 bit register values of setting.
Select in the grayscale voltage of the 6th selector switch 69 between first selector 64 and the 5th selector switch 68 and output and the corresponding grayscale voltage of 4 bit register values of setting.The curve of middle gray can be adjusted by as above operating according to register value of setting of curve controlled register 63, makes to be easy to adjust the gamma attribute according to the respective attributes of light-emitting component.Protruding downwards in order to allow the gamma curve attribute to become, the electric potential difference between the gray scale is set to be expressed and increase along with lower gray scale.On the contrary, convex in order to allow the gamma curve attribute to become, the resistance value of each resistor ladder 61 is set to allow the electric potential difference between the gray scale to be expressed along with lower gray scale and reduces.
Grayscale voltage amplifier 70 output respectively with the corresponding a plurality of grayscale voltages of a plurality of gray scales that will on pixel cell 100, show.In Fig. 3, expressed output with 64 corresponding grayscale voltages of gray scale.
Fig. 4 is the circuit diagram of first embodiment of the gamma converting unit used in the organic light emitting display that illustrates according to the embodiment of the invention.Referring to Fig. 4, gamma converting unit 500 comprises the first transistor M1, transistor seconds M2, the 3rd transistor M3 and the 4th transistor M4.Illustrate the first transistor M1 and the 4th transistor M4 is implemented as the PMOS transistor, and transistor seconds M2 and the 3rd transistor M3 are implemented as nmos pass transistor.Yet if the first transistor M1 and the 4th transistor M4 are implemented as nmos pass transistor, transistor seconds M2 and the 3rd transistor M3 may be implemented as the PMOS transistor.
The source electrode of the first transistor M1 is connected to the first passage of data driver 200, and the drain electrode of the first transistor M1 is connected to the first data line D1.The grid of the first transistor M1 is connected to gamma switching signal line GS.
The source electrode of transistor seconds M2 is connected to the first passage of data driver 200, and the drain electrode of transistor seconds M2 is connected to the 3rd data line D3.The grid of transistor seconds M2 is connected to gamma switching signal line GS.
The source electrode of the 3rd transistor M3 is connected to the third channel CH3 of data driver 200, and the drain electrode of the 3rd transistor M3 is connected to the first data line D1.The grid of the 3rd transistor M3 is connected to gamma switching signal line GS.
The source electrode of the 4th transistor M4 is connected to the third channel CH3 of data driver 200, and the drain electrode of the 4th transistor M4 is connected to the 3rd data line D3.The grid of the 4th transistor M4 is connected to gamma switching signal line GS.
The second channel CH2 of data driver 200 is directly connected to the second data line D2.
Transmitted by gamma switching signal line GS if be in the gamma switching signal of low-voltage state, then the first transistor M1 and the 4th transistor M4 conducting, and transistor seconds M2 and the 3rd transistor M3 end.In other words, the first passage CH1 of data driver 200 is connected to the first data line D1, and the second channel CH2 of data driver 200 is connected to the second data line D2, and the third channel CH3 of data driver 200 is connected to the 3rd data line D3.
Transmitted by gamma switching signal line GS if be in the gamma switching signal of high-voltage state, then the first transistor M1 and the 4th transistor M4 end, and transistor seconds M2 and the 3rd transistor M3 conducting.In other words, the first passage CH1 of data driver 200 is connected to the 3rd data line D3, and the second channel CH2 of data driver 200 is connected to the second data line D2, and the third channel CH3 of data driver 200 is connected to the first data line D1.
Therefore, if the gamma switching signal of transmitting by gamma switching signal line GS is in low-voltage state, then red data is passed to the first data line D1, and green data is passed to the second data line D2, and blue data is passed to the 3rd data line D3.If the gamma switching signal of transmitting by gamma switching signal line GS is in high-voltage state, then blue data is passed to the first data line D1, and green data is passed to the second data line D2, and red data is passed to the 3rd data line D3.
By as above operation, the red sub-pixel 101R of pixel cell 100 receives the data-signal that is applied in red gamma, the green sub-pixels 101G of pixel cell 100 receives the data-signal that is applied in green gamma, and the blue subpixels 101B of pixel cell 100 receives the data-signal that is applied in blue gamma.
Fig. 5 is the circuit diagram of second embodiment of the gamma converting unit used in the organic light emitting display that illustrates according to the embodiment of the invention.Referring to Fig. 5, gamma converting unit 500 comprises the first transistor M1, transistor seconds M2, the 3rd transistor M3, the 4th transistor M4 and the 5th transistor M5.And the first transistor M1, the 3rd transistor M3 and the 5th transistor M5 are implemented as the PMOS transistor, and transistor seconds M2 and the 4th transistor M4 are implemented as nmos pass transistor.In addition, if the first transistor M1, the 3rd transistor M3 and the 5th transistor M5 are implemented as nmos pass transistor, then transistor seconds M2 and the 4th transistor M4 may be implemented as the PMOS transistor.
The source electrode of the first transistor M1 is connected to the first passage CH1 of data driver 200, and the drain electrode of the first transistor M1 is connected to first node N1.The grid of the first transistor M1 is connected to gamma switching signal line GS1.
The source electrode of transistor seconds M2 is connected to the third channel CH3 of data driver 200, and the drain electrode of transistor seconds M2 is connected to Section Point N2.The grid of transistor seconds M2 is connected to gamma switching signal line GS1.
The source electrode of the 3rd transistor M3 is connected to first node N1, and the drain electrode of the 3rd transistor M3 is connected to the first data line D1.The grid of the 3rd transistor M3 is connected to the second gamma switching signal line GS2.
The source electrode of the 4th transistor M4 is connected to Section Point N2, and the drain electrode of the 4th transistor M4 is connected to the 3rd data line D3.The grid of the 4th transistor M4 is connected to the second gamma switching signal line GS2.
The source electrode of the 5th transistor M5 is connected to first node N1, and the drain electrode of the 5th transistor M5 is connected to Section Point N2.The grid of the 5th transistor M5 is connected to the 3rd gamma switching signal line GS3.
The second channel CH2 of data driver 200 is directly connected to the second data line D2.
If redness, green and blue data are output from first passage CH1, second channel CH2 and third channel CH3, and redness, green and blue pixel are connected to the first data line D1, the second data line D2 and the 3rd data line D3, and then these transistors operations are as follows.
At first, if the first gamma switching signal and the second gamma switching signal are in low-voltage state, and the 3rd gamma switching signal is in high-voltage state, then the first transistor and the 3rd transistor turns, and transistor seconds, the 4th transistor and the 5th transistor end.In this state, the red data from first passage CH1 output is delivered to the first data line D1.Then, red data is delivered to red pixel.
If the first gamma switching signal, the second gamma switching signal and the 3rd gamma switching signal are in high-voltage state, then the first transistor M1, the 3rd transistor M3 and the 5th transistor M5 end, and transistor seconds M2 and the 4th transistor M4 conducting.In this state, the blue data from third channel CH3 output is delivered to the 3rd data line D3.Then, blue data is delivered to blue pixel.
At this moment, second channel CH2 is directly connected to the second data line D2, so that green data is delivered to green pixel.
If blueness, green and red data are output from first passage CH1, second channel CH2 and third channel CH3, and redness, green and blue pixel are connected to the first data line D1, the second data line D2 and the 3rd data line D3, and then these transistors operations are as follows.
At first, if the first gamma switching signal and the 3rd gamma switching signal are in low-voltage state, and the second gamma switching signal is in high-voltage state, then the first transistor M1, the 4th transistor M4 and the 5th transistor M5 conducting, and transistor seconds M2 and the 3rd transistor M3 end.In this state, the blue data from first passage CH1 output is delivered to the 3rd data line D3 through the first transistor M1, the 5th transistor M5 and the 4th transistor M4.Then, blue data is delivered to blue pixel thus.
If the first gamma switching signal is in high-voltage state, and the second gamma switching signal and the 3rd gamma switching signal are in low-voltage state, then transistor seconds M2, the 3rd transistor M3 and the 5th transistor M5 conducting, and the first transistor M1 and the 4th transistor M4 end.In this state, the red data from third channel CH3 output passes to the first data line D1 through transistor seconds M2, the 5th transistor M5 and the 3rd transistor M3.Then, red data is delivered to red pixel thus.
At this moment, second channel CH2 is directly connected to the second data line D2, so that green data is delivered to green pixel.
By as above operation, the red sub-pixel 101R of pixel cell 100 receives the data-signal that is applied in red gamma, the green sub-pixels 101G of pixel cell 100 receives the data-signal that is applied in green gamma, and the blue subpixels 101B of pixel cell 100 receives the data-signal that is applied in blue gamma.
Fig. 6 is the circuit diagram of the 3rd embodiment of the gamma converting unit used in the organic light emitting display that illustrates according to the embodiment of the invention.Referring to Fig. 6, gamma converting unit 500 comprises the first transistor M1, transistor seconds M2, the 3rd transistor M3 and the 4th transistor M4.Be implemented as the PMOS transistor though illustrate the first transistor M1 to the four transistor M4, the first transistor M1 to the four transistor M4 also may be implemented as nmos pass transistor.
The source electrode of the first transistor M1 is connected to the first passage CH1 of data driver 200, and the drain electrode of the first transistor M1 is connected to the first data line D1.The grid of the first transistor M1 is connected to the second gamma switching signal line GS2.
The source electrode of transistor seconds M2 is connected to the first passage CH1 of data driver 200, and the drain electrode of transistor seconds M2 is connected to the 3rd data line D3.The grid of transistor seconds M2 is connected to the first gamma switching signal line GS1.
The source electrode of the 3rd transistor M3 is connected to the third channel CH3 of data driver 200, and the drain electrode of the 3rd transistor M3 is connected to the first data line D1.The grid of the 3rd transistor M3 is connected to the first gamma switching signal line GS1.
The source electrode of the 4th transistor M4 is connected to the third channel CH3 of data driver 200, and the drain electrode of the 4th transistor M4 is connected to the 3rd data line D3.The grid of the 4th transistor M4 is connected to the second gamma switching signal line GS2.
The second channel CH2 of data driver 200 is directly connected to the second data line D2.
Transmitted then the first transistor M1 and the 4th transistor M4 conducting by the second gamma switching signal line GS2 if be in the gamma switching signal of low-voltage state.Transmitted by the first gamma switching signal line GS1 if be in the gamma switching signal of high-voltage state, then transistor seconds M2 and the 3rd transistor M3 end.In other words, the first passage CH1 of data driver 200 is connected to the first data line D1, and the second channel CH2 of data driver 200 is connected to the second data line D2, and the third channel CH3 of data driver 200 is connected to the 3rd data line D3.
If being in the gamma switching signal of high-voltage state is transmitted by the second gamma switching signal line GS2, then the first transistor M1 and the 4th transistor M4 end, if and the gamma switching signal that is in low-voltage state is transmitted then transistor seconds M2 and the 3rd transistor M3 conducting by the first gamma switching signal line GS1.In other words, the first passage CH1 of data driver 200 is connected to the 3rd data line D3, and the second channel CH2 of data driver 200 is connected to the second data line D2, and the third channel CH3 of data driver 200 is connected to the first data line D1.
Therefore, if the gamma switching signal of transmitting by the second gamma switching signal line GS2 is in low-voltage state, and the gamma switching signal of transmitting by the first gamma switching signal line GS1 is in high-voltage state, then red data is delivered to the first data line D1, green data is delivered to the second data line D2, and blue data is delivered to the 3rd data line D3.If the gamma switching signal of transmitting by the second gamma switching signal line GS2 is in high-voltage state, and the gamma switching signal of transmitting by the first gamma switching signal line GS1 is in low-voltage state, then blue data is delivered to the first data line D1, green data is delivered to the second data line D2, and red data is delivered to the 3rd data line D3.
By above operation, the red sub-pixel 101R of pixel cell 100 receives the data-signal that is applied in red gamma, the green sub-pixels 101G of pixel cell 100 receives the data-signal that is applied in green gamma, and the blue subpixels 101B of pixel cell 100 receives the data-signal that is applied in blue gamma.
Although invention has been described in conjunction with some one exemplary embodiment, but it should be understood that, the present invention is not limited to the disclosed embodiments, and in contrast, the present invention is intended to cover interior various modifications and the equivalent arrangements and the equivalent thereof of spirit and scope of claims.
Claims (18)
1, a kind of organic light emitting display comprises:
The viewing area comprises a plurality of pixels, and each pixel comprises at least two sub-pixels with different colours;
Data driver is used for to the signal wire outputting data signals; With
The data-signal switch, be used for receiving described data-signal by described signal wire, and transmitting described data-signal to described sub-pixel by data line, described data-signal switch is configured to switch described data-signal according to the data switching signal between two sub-pixels of sub-pixel described in the same pixel of described pixel.
2, organic light emitting display according to claim 1, further comprise gammate, be used for providing red gamma data, green gamma data and blue gamma data to described data driver, wherein said data driver is configured to receive red image data, green image data and blue image data, and apply described red gamma data, green gamma data and blue gamma data to described red image data, green image data and blue image data respectively, to produce described data-signal.
3, organic light emitting display according to claim 1, wherein said data driver be positioned at described viewing area first side first data driver or be positioned at second data driver of second side of described viewing area, the data switching signal that wherein is applied to the data-signal switch that is connected with described first data driver is different from the data switching signal that is applied to the data-signal switch that is connected with described second data driver.
4, organic light emitting display according to claim 1, wherein said data-signal switch comprises: first switch and second switch have the first terminal that is connected to first signal wire in the described signal wire separately; And the 3rd switch and the 4th switch, the first terminal that has the secondary signal line that is connected in the described signal wire separately, and wherein said first switch and the 3rd switch have second terminal that is connected to first data line in the described data line separately, and described second switch and the 4th switch have second terminal that is connected to second data line in the described data line separately.
5, organic light emitting display according to claim 4, wherein said first switch, second switch, the 3rd switch and the 4th switch are configured to receive described data switching signal, wherein switch between described first data line and second data line according to described data switching signal from the data-signal of described first signal wire with from the data-signal of described secondary signal line.
6, organic light emitting display according to claim 4, wherein said first switch and the 4th switch comprise the transistor of the first kind, and described second switch and the 3rd switch comprise the transistor of second type.
7, organic light emitting display according to claim 1, wherein said at least two sub-pixels comprise red sub-pixel, green sub-pixels and blue subpixels, and wherein said data-signal switch is configured to switch the data-signal that is applied on described red sub-pixel and the blue subpixels according to described data switching signal.
8, organic light emitting display according to claim 1, wherein said data-signal switch comprises: first switch and the 3rd switch are connected in series between first data line and first signal wire in the described signal wire in the described data line; Second switch and the 4th switch are connected in series between second data line and the secondary signal line in the described signal wire in the described data line; And the 5th switch, have be connected the first terminal between described first switch and the 3rd switch and be connected described second switch and the 4th switch between second terminal.
9, organic light emitting display according to claim 8, wherein said data switching signal comprise the first data switching signal that is applied to described first switch and second switch, the 3rd data switching signal that is applied to the second data switching signal of described the 3rd switch and the 4th switch and is applied to described the 5th switch.
10, organic light emitting display according to claim 9, wherein said first switch, the 3rd switch and the 5th switch are the transistors of the first kind, and described second switch and the 4th switch are the transistors of second type.
11, organic light emitting display according to claim 9, wherein when the described first data switching signal has low level, the described second data switching signal and has high level and described the 3rd data switching signal and have low level, be applied to described second data line from the data-signal of described first signal wire.
12, organic light emitting display according to claim 9, wherein have high level, the described second data switching signal when having low level and described the 3rd data switching signal and having low level when the described first data switching signal, be applied to described first data line from the data-signal of described secondary signal line.
13, organic light emitting display according to claim 1, wherein said data-signal switch comprises: first switch is connected between first signal wire and first data line in the described data line in the described signal wire; Second switch is connected between second data line in described first signal wire and the described data line; The 3rd switch is connected between the secondary signal line and described first data line in the described signal wire; And the 4th switch, be connected between described secondary signal line and described second data line, wherein said data switching signal comprises first data switching signal that is applied to described second switch and the 3rd switch and the second data switching signal that is applied to described first switch and the 4th switch.
14, organic light emitting display according to claim 13, wherein said first data switching signal and the described second data switching signal are configured to make that the described second data switching signal is in high level when the described first data switching signal is in low level, and the described second data switching signal is in low level when the described first data switching signal is in high level.
15, organic light emitting display according to claim 14, wherein said first switch, second switch, the 3rd switch and the 4th switch comprise the P transistor npn npn.
16, a kind of method that is used for suitable gamma correction is applied to the data-signal of display device, described display device comprises a plurality of pixels, and each pixel comprises first sub-pixel, second sub-pixel and the 3rd sub-pixel, and described method comprises:
The first gamma correction factor is applied to first color signal, to produce first data-signal that will be applied to described first sub-pixel or described the 3rd sub-pixel;
The second gamma correction factor is applied to second color signal, to produce second data-signal that will be applied to described second sub-pixel;
The 3rd gamma correction factor is applied to the 3rd color signal, to produce the 3rd data-signal that will be applied to described first sub-pixel or described the 3rd sub-pixel; And
Between described first sub-pixel and the 3rd sub-pixel, switch described first data-signal and the 3rd data-signal according to the data switching signal.
17, the method that is used for suitable gamma correction is applied to the data-signal of display device according to claim 16, wherein said first sub-pixel, second sub-pixel and the 3rd sub-pixel comprise red sub-pixel, green sub-pixels and blue subpixels, and described switching is included in described first data-signal of switching and the 3rd data-signal between described red sub-pixel and the blue subpixels.
18, the method that is used for suitable gamma correction is applied to the data-signal of display device according to claim 16, wherein said switching comprise optionally conducting or a plurality of transistors between described data-signal and described first sub-pixel and the 3rd sub-pixel.
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| US7976208P | 2008-07-10 | 2008-07-10 | |
| US61/079,762 | 2008-07-10 | ||
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105185311A (en) * | 2015-10-10 | 2015-12-23 | 深圳市华星光电技术有限公司 | Amoled display device and driving method thereof |
| CN111354289A (en) * | 2018-12-24 | 2020-06-30 | 硅工厂股份有限公司 | Source electrode driving circuit |
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2009
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105185311A (en) * | 2015-10-10 | 2015-12-23 | 深圳市华星光电技术有限公司 | Amoled display device and driving method thereof |
| WO2017059628A1 (en) * | 2015-10-10 | 2017-04-13 | 深圳市华星光电技术有限公司 | Amoled display apparatus and driving method therefor |
| CN105185311B (en) * | 2015-10-10 | 2018-03-30 | 深圳市华星光电技术有限公司 | AMOLED display device and its driving method |
| CN111354289A (en) * | 2018-12-24 | 2020-06-30 | 硅工厂股份有限公司 | Source electrode driving circuit |
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Application publication date: 20100113 |