CN105280139A - AMOLED brightness compensation method and AMOLED driving system - Google Patents
AMOLED brightness compensation method and AMOLED driving system Download PDFInfo
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Abstract
The invention provides an AMOLED brightness compensation method and an AMOLED driving system. A compensation unit (4) comprising first, second and third brightness sensors (42, 43, 44) and a compensation IC (41) and a test pixel unit (5) comprising red, green and blue test pixels (51, 52, 53) are additionally arranged. Brightness of the red, green and blue test pixels (51, 52, 53) at the initial moment and the compensation moment is respectively sensed by the first, second and third brightness sensors (42, 43, 44) so that compensation voltage respectively required by red, green and blue organic light-emitting diodes can be calculated by the compensation IC (41), then brightness compensation is respectively performed on the red, green and blue organic light-emitting diodes, and thus reduction of displayer brightness caused by brightness attenuation of the organic light-emitting diodes and color cast caused by difference of brightness attenuation speed of different colors of organic light-emitting diodes can be improved and luminescence brightness and color gamut of the AMOLED can be maintained.
Description
Technical field
The present invention relates to display technique field, particularly relate to a kind of AMOLED luminance compensation method and AMOLED drive system.
Background technology
Flat-panel display device has that fuselage is thin, power saving, the many merits such as radiationless, be widely used.Existing flat-panel display device mainly comprises liquid crystal indicator (LiquidCrystalDisplay, LCD) and organic LED display device (OrganicLightEmittingDisplay, OLED).
Organic LED display device has autoluminescence, driving voltage is low, luminescence efficiency is high, the response time is short, sharpness and high, the nearly 180 ° of visual angles of contrast, serviceability temperature wide ranges, can realize the plurality of advantages such as Flexible Displays and large area total colouring, being known as by industry is the display device having development potentiality most.OLED display can be divided into passive matrix OLED (PassiveMatrixOLED according to type of drive, and active array type OLED (ActiveMatrixOLED PMOLED), AMOLED) two large classes, i.e. directly address and thin film transistor (TFT) (ThinFilmTransistor, TFT) matrix addressing two class.Wherein, AMOLED has the pixel of the arrangement in array, and belong to initiatively display type, luminous efficacy is high, is typically used as the large scale display device of high definition.
Organic Light Emitting Diode generally includes: substrate, the anode be located on substrate, the organic luminous layer be located on anode, the negative electrode be located at the electron transfer layer on organic luminous layer and be located on electron transfer layer.Launch the hole from anode and the electronics from negative electrode to organic luminous layer during work, these electronics and hole combination are produced excitability electron-hole pair, and it is luminous that excitability electron-hole pair is converted to ground state realization from excited state.
AMOLED is current driving apparatus, when there being electric current to flow through Organic Light Emitting Diode, and organic light-emitting diode, and luminosity is determined by the electric current flowing through Organic Light Emitting Diode self, the electric current flow through is larger, and the brightness of Organic Light Emitting Diode is also larger.The existing integrated circuit (IntegratedCircuit, IC) of major part all transmission voltage signals, therefore the drive system of AMOLED has needed the task of voltage signal being changed into current signal.But owing to working long hours under direct current (DC) bias, the brightness of Organic Light Emitting Diode can decay gradually, therefore along with the service time of Organic Light Emitting Diode extends, the brightness of AMOLED display device can be more and more lower.Further, the rate of decay of the Organic Light Emitting Diode of different colours is not identical yet, as shown in Figure 1, at red (Red, R), green (Green, G), blue (Blue, in the Organic Light Emitting Diode of B) three kinds of colors, Blue OLED decay is the most obvious, and this can cause AMOLED display device to produce colour cast, and along with the prolongation colour cast of service time can be more and more serious.
Summary of the invention
The object of the present invention is to provide a kind of AMOLED luminance compensation method, display brightness that the brightness decay because of Organic Light Emitting Diode causes can be improved and to decline the colour cast that cause different from the oled luminance rate of decay of different colours.
The present invention also aims to provide a kind of AMOLED drive system, the brightness decay of different colours Organic Light Emitting Diode can be compensated, keep luminosity and the colour gamut of AMOLED.
For achieving the above object, the invention provides a kind of AMOLED luminance compensation method, comprise the steps:
Step 1, provide an AMOLED drive system, comprising: display unit, the source drive unit is electrically connected with described display unit, the drive element of the grid be electrically connected with described display unit, and the compensating unit that is electrically connected of described source drive unit and the test pixel unit that is electrically connected with source drive unit and drive element of the grid;
Described test pixel unit is located at outside described display unit, comprising: a red test pixel, a green test pixel and a blue test pixel;
Described compensating unit comprises first, second and the 3rd luminance sensor that compensate IC and is electrically connected with the described IC that compensates, and the setting of corresponding red test pixel, green test pixel and blue test pixel distinguished by described first, second and the 3rd luminance sensor;
Step 2, enter the initial moment, described source drive unit and drive element of the grid provide data-signal and sweep signal to display unit and test pixel unit, light described display unit, red test pixel, green test pixel, and blue test pixel, described first, second, and the 3rd luminance sensor be captured in the red test pixel in initial moment under default canonical reference GTG respectively, green test pixel, and the brightness of blue test pixel, and monochrome information is sent to compensation IC, described compensation IC is according to the red test pixel in initial moment, green test pixel, and it is red in blue test pixel, green, and the relation curve of the brightness of blue organic light emitting diode and electric current calculates the redness in initial moment respectively, green, and the drive current of blue test pixel,
Step 3, enter compensate the moment, the brightness of the red test pixel in moment, green test pixel and blue test pixel is compensated under described first, second and the 3rd luminance sensor gather a certain GTG respectively, and monochrome information is sent to the brightness compensating and compensate the red test pixel in moment, green test pixel and blue test pixel under IC, described compensation IC calculate acquisition canonical reference GTG according to gamma curve;
Step 4, described compensation IC is according to the red test pixel in moment initial under canonical reference GTG, green test pixel, and the brightness of blue test pixel compensates the red test pixel in moment respectively with under canonical reference GTG, green test pixel, and the relation of the brightness of blue test pixel, obtain the redness compensating the moment, green, and blue test pixel is issued to and the drive current needed for initial moment same brightness and the redness in initial moment at canonical reference GTG, green, and the relation of the drive current of blue test pixel, and then calculate the redness compensating the moment, green, and blue test pixel is issued to and the drive current needed for initial moment same brightness at canonical reference GTG,
Step 5, described compensation IC drive the electric current of thin film transistor (TFT) and the family curve of voltage according in red test pixel, green test pixel and blue test pixel, calculate red under canonical reference GTG, green and blue test pixel respectively in the initial moment, compensate the moment and reach driving voltage needed for same brightness, then the difference of the driving voltage of calculation compensation moment redness, green and the driving voltage needed for blue test pixel and redness of initial moment, green and blue test pixel is distinguished, i.e. redness, green and blue bucking voltage;
Step 6, voltage source drive unit being supplied to the data-signal of red in display unit, green and blue Organic Light Emitting Diode are modified to the voltage of former data-signal and red bucking voltage sum, the voltage of former data-signal and the voltage of green bucking voltage sum and former data-signal and blue bucking voltage sum respectively, complete AMOLED luminance compensation.
Described canonical reference GTG is 255 GTGs.
Described AMOLED drive system also comprises: signal interface unit, timing control unit and power supply unit;
Described signal interface unit and described timing control unit and power supply unit are electrically connected;
Described timing control unit and described signal interface unit, power supply unit, drive element of the grid and source drive unit are electrically connected;
Described power supply unit and described signal interface unit, timing control unit, drive element of the grid, source drive unit, compensate IC, display unit and test pixel unit and be electrically connected.
The arbitrary pixel be supplied in the sweep signal of described red test pixel, green test pixel and blue test pixel and data signal reference display unit is arranged.
Described compensation IC is built-in with red in the red test pixel in initial moment, green test pixel and blue test pixel, the green and brightness of blue organic light emitting diode and relation curve, the gamma curve of electric current and red test pixel, green test pixel and blue test pixel are interior drives the electric current of thin film transistor (TFT) and the family curve of voltage.
The present invention also provides a kind of AMOLED drive system, comprising: display unit, the source drive unit is electrically connected with described display unit, the drive element of the grid be electrically connected with described display unit, and the compensating unit that is electrically connected of described source drive unit and the test pixel unit that is electrically connected with source drive unit and drive element of the grid;
Described test pixel unit is located at outside described display unit, comprising: a red test pixel, a green test pixel and a blue test pixel;
Described compensating unit comprises first, second and the 3rd luminance sensor that compensate IC and is electrically connected with the described IC that compensates, and the setting of corresponding red test pixel, green test pixel and blue test pixel distinguished by described first, second and the 3rd luminance sensor;
Described first, second and the 3rd luminance sensor are respectively used to the brightness gathering red test pixel, green test pixel and blue test pixel, and monochrome information are passed to and compensate IC;
Described compensation IC is used for according to first, second, and the 3rd initial moment of collecting of luminance sensor and the red test pixel compensating the moment, green test pixel, and the brightness of blue test pixel, calculate redness, green, and blue test pixel under canonical reference GTG respectively in the initial moment, the compensation moment reaches the drive current needed for same brightness, calculate the redness compensating the moment more respectively, green, and driving voltage needed for blue test pixel and the redness in initial moment, green, and the difference of the driving voltage of blue test pixel, namely red, green, and blue bucking voltage, by redness, green, and blue bucking voltage passes to source drive unit,
Described source drive unit is used for the voltage of the data-signal being supplied in red test pixel in display unit, green test pixel and blue test pixel red, green and blue Organic Light Emitting Diode to be modified to respectively the voltage of former data-signal and red bucking voltage sum, the voltage of former data-signal and the voltage of green bucking voltage sum and former data-signal and blue bucking voltage sum.
Described canonical reference GTG is 255 GTGs.
Described AMOLED drive system also comprises: signal interface unit, timing control unit and power supply unit;
Described signal interface unit and described timing control unit and power supply unit are electrically connected;
Described timing control unit and described signal interface unit, power supply unit, drive element of the grid and source drive unit are electrically connected;
Described power supply unit and described signal interface unit, timing control unit, drive element of the grid, source drive unit, compensate IC, display unit and test pixel unit and be electrically connected.
The arbitrary pixel be supplied in the sweep signal of described red test pixel, green test pixel and blue test pixel and data signal reference display unit is arranged.
Described compensation IC is built-in with red in the red test pixel in initial moment, green test pixel and blue test pixel, the green and brightness of blue organic light emitting diode and relation curve, the gamma curve of electric current and red test pixel, green test pixel and blue test pixel are interior drives the electric current of thin film transistor (TFT) and the family curve of voltage.
Beneficial effect of the present invention: a kind of AMOLED luminance compensation method provided by the invention and AMOLED drive system, have additional and comprise first, second, and the 3rd luminance sensor and compensate the compensating unit of IC, and comprise redness, green, and the test pixel unit of blue test pixel, by first, second, and the 3rd luminance sensor sense redness respectively, green, and blue test pixel is in initial moment and the brightness compensating the moment, and then redness can be calculated by compensating IC, green, and the bucking voltage that blue Organic Light Emitting Diode needs respectively, again to redness, green, and blue Organic Light Emitting Diode carries out luminance compensation respectively, display brightness that the brightness decay because of Organic Light Emitting Diode causes can be improved to decline the colour cast that cause different from the oled luminance rate of decay of different colours, keep luminosity and the colour gamut of AMOLED.
Accompanying drawing explanation
In order to further understand feature of the present invention and technology contents, refer to following detailed description for the present invention and accompanying drawing, but accompanying drawing only provides reference and explanation use, is not used for being limited the present invention.
In accompanying drawing,
Fig. 1 is red, green and the brightness decay curve figure of blue Organic Light Emitting Diode;
Fig. 2 is the process flow diagram of AMOLED luminance compensation method of the present invention;
Fig. 3 is the block diagram of AMOLED drive system of the present invention;
Fig. 4 is the position view of the luminance sensor in AMOLED drive system of the present invention in test pixel and compensating unit.
Embodiment
For further setting forth the technological means and effect thereof that the present invention takes, be described in detail below in conjunction with the preferred embodiments of the present invention and accompanying drawing thereof.
Refer to Fig. 2, first the present invention provides a kind of AMOLED luminance compensation method, comprises the steps:
Step 1, provide an AMOLED drive system.
Please refer to Fig. 3 and Fig. 4, described AMOLED drive system comprises: display unit 1, the source drive unit 2 is electrically connected with described display unit 1, the drive element of the grid 3 be electrically connected with described display unit 1, and the compensating unit 4 that is electrically connected of described source drive unit 2 and the test pixel unit 5 that is electrically connected with source drive unit 2 and drive element of the grid 3.
Further, described test pixel unit 5 is located at outside described display unit 1, is namely located at the non-display area of AMOLED display device, comprises: red test pixel 51, green test pixel 52 and blue test pixel 53.
Described compensating unit 4 comprises first, second and the 3rd luminance sensor 42,43,44 that compensate IC41 and be electrically connected with the described IC41 of compensation, and corresponding red test pixel 51, green test pixel 52 and blue test pixel 53 are arranged respectively for described first, second and the 3rd luminance sensor 42,43,44.
Described AMOLE drive system also comprises: signal interface unit 6, timing control unit 7 and power supply unit 8.Described signal interface unit 6 is electrically connected with described timing control unit 7 and power supply unit 8; Described timing control unit 7 is electrically connected with described signal interface unit 6, power supply unit 8, drive element of the grid 3 and source drive unit 2; Described power supply unit 8 and described signal interface unit 6, timing control unit 7, drive element of the grid 3 and source drive unit 2, compensate IC41, display unit 1 and test pixel unit 5 and be electrically connected.Power supply signal is distributed to power supply unit 8 by described signal interface unit 6, and the display of LVDS pattern is distributed to timing control unit 7.Timing control unit 7 pairs of signals process, the display of the Mini-LVDS pattern that can be identified by source drive unit 2 passes to source drive unit 2, and the clock signal that can identify drive element of the grid 3 and control signal pass to drive element of the grid 3.Described power supply unit 8 is powered for other each unit, as to as described in display unit 1 and test pixel unit 5 supply voltage Vdd is provided.
Described display unit 1 comprises multiple pixels of the arrangement in matrix form, in described red test pixel 51, green test pixel 52, blue test pixel 53 and display unit 1, the pixel-driving circuit of each pixel is traditional 2T1C structure, namely a switching thin-film transistor is comprised, one drives thin film transistor (TFT) and a memory capacitance, this is prior art, does not launch to describe herein.
Step 2, enter the initial moment, described source drive unit 2 and drive element of the grid 3 provide data-signal Data and sweep signal Gate to display unit 1 and test pixel unit 5, light described display unit 1, red test pixel 51, green test pixel 52, and blue test pixel 53, described first, second, and the 3rd luminance sensor 42, 43, the 44 red test pixels 51 being captured in the initial moment under default canonical reference GTG respectively, green test pixel 52, and the brightness of blue test pixel 53, and monochrome information is sent to compensation IC41, described compensation IC41 is according to the red test pixel 51 in initial moment, green test pixel 52, and it is red in blue test pixel 53, green, and the relation curve of the brightness of blue organic light emitting diode and electric current calculates the redness in initial moment respectively, green, and blue test pixel 51, 52, the drive current of 53.
Particularly, the sweep signal Gate and the data-signal Data that are supplied to described red test pixel 51, green test pixel 52 and blue test pixel 53 are arranged with reference to the arbitrary pixel in display unit 1.
Red in the red test pixel 51 in described initial moment, green test pixel 52 and blue test pixel 53, the green and brightness of blue organic light emitting diode and the relation curve of electric current are built in and compensate in IC41, it is relevant with the material of Organic Light Emitting Diode, obtains by actual measurement.Described canonical reference GTG can select 255 GTGs, but is not restricted to 255 GTGs, and other grey decision-making also can as canonical reference GTG.
Step 3, enter compensate the moment, the brightness of the red test pixel 51 in moment, green test pixel 52 and blue test pixel 53 is compensated under described first, second and the 3rd luminance sensor 42,43,44 gather a certain GTG respectively, and monochrome information is sent to the brightness compensating the red test pixel 51, green test pixel 52 and the blue test pixel 53 that compensate the moment under IC41, described compensation IC41 calculate acquisition canonical reference GTG according to gamma curve.
Particularly, described gamma curve is built in and compensates in IC41.
Step 4, described compensation IC41 is according to the red test pixel 51 in moment initial under canonical reference GTG, green test pixel 52, and the brightness of blue test pixel 53 compensates the red test pixel 51 in moment respectively with under canonical reference GTG, green test pixel 52, and the relation of the brightness of blue test pixel 53, obtain the redness compensating the moment, green, and blue test pixel 51, 52, 53 are issued to and the drive current needed for initial moment same brightness and the redness in initial moment at canonical reference GTG, green, and blue test pixel 51, 52, the relation of the drive current of 53, and then calculate the redness compensating the moment, green, and blue test pixel 51, 52, 53 are issued to and the drive current needed for initial moment same brightness at canonical reference GTG.
Illustrate: if in the compensation moment, the brightness of described red test pixel 51 under 255 GTGs is a, and the brightness of red test pixel 51 under 255 GTGs in initial moment is 2a, then compensate the moment, this red test pixel 51 to reach 2a brightness required for drive current should be 2 times of the drive current in initial moment, the drive current in even initial moment is I, then in the compensation moment, this red test pixel 51 the is issued to 2a drive current needed for brightness at 255 GTGs is 2I.
Step 5, described compensation IC41 is according to red test pixel 51, green test pixel 52, and drive the electric current of thin film transistor (TFT) and the family curve of voltage in blue test pixel 53, red under calculating canonical reference GTG, green, and blue test pixel 51, 52, 53 respectively in the initial moment, the compensation moment reaches the driving voltage needed for same brightness, then the calculation compensation moment is red respectively, green, and blue test pixel 51, 52, driving voltage needed for 53 and redness of initial moment, green, and blue test pixel 51, 52, the difference of the driving voltage of 53, namely red, green, and blue bucking voltage.
Particularly, drive the electric current of thin film transistor (TFT) and the family curve of voltage to be built in described red test pixel 51, green test pixel 52 and blue test pixel 53 to compensate in IC41.
Accept the citing in step 4: if under 255 GTGs, red test pixel 51 all reaches the brightness of 2a in initial moment and compensation moment, the drive current in initial moment is I, the drive current compensating the moment is 2I, the electric current of thin film transistor (TFT) and the family curve of voltage is driven according in red test pixel 51, calculating red test pixel 51 at the driving voltage in initial moment is V0, and be V compensating the driving voltage required for the moment, then red bucking voltage is V-V0.Green and blue bucking voltage can be calculated according to same method.
Step 6, voltage source drive unit 2 being supplied to the data-signal Data of red in display unit 1, green and blue Organic Light Emitting Diode are modified to the voltage of former data-signal Data and red bucking voltage sum, the voltage of former data-signal Data and the voltage of green bucking voltage sum and former data-signal Data and blue bucking voltage sum respectively, complete AMOLED luminance compensation.
Above-mentioned AMOLED luminance compensation method, have additional and comprise first, second, and the 3rd luminance sensor 42, 43, 44 and compensate the compensating unit 4 of IC41, and comprise redness, green, and blue test pixel 51, 52, the test pixel unit 5 of 53, by first, second, and the 3rd luminance sensor 42, 43, 44 sense redness respectively, green, and blue test pixel 51, 52, 53 in initial moment and the brightness compensating the moment, and then redness can be calculated by compensating IC41, green, and the bucking voltage that blue Organic Light Emitting Diode needs respectively, again to redness, green, and blue Organic Light Emitting Diode carries out luminance compensation respectively, display brightness that the brightness decay because of Organic Light Emitting Diode causes can be improved to decline the colour cast that cause different from the oled luminance rate of decay of different colours, keep luminosity and the colour gamut of AMOLED.
Refer to Fig. 3 and composition graphs 4, the present invention also provides a kind of AMOLED drive system, comprising: display unit 1, the source drive unit 2 is electrically connected with described display unit 1, the drive element of the grid 3 be electrically connected with described display unit 1, and the compensating unit 4 that is electrically connected of described source drive unit 2 and the test pixel unit 5 that is electrically connected with source drive unit 2 and drive element of the grid 3.
Further, described test pixel unit 5 is located at outside described display unit 1, is namely located at the non-display area of AMOLED display device, comprises: red test pixel 51, green test pixel 52 and blue test pixel 53.
Described compensating unit 4 comprises first, second and the 3rd luminance sensor 42,43,44 that compensate IC41 and be electrically connected with the described IC41 of compensation, and corresponding red test pixel 51, green test pixel 52 and blue test pixel 53 are arranged respectively for described first, second and the 3rd luminance sensor 42,43,44.
Described AMOLED drive system also comprises: signal interface unit 6, timing control unit 7 and power supply unit 8.Described signal interface unit 6 is electrically connected with described timing control unit 7 and power supply unit 8; Described timing control unit 7 is electrically connected with described signal interface unit 6, power supply unit 8, drive element of the grid 3 and source drive unit 2; Described power supply unit 8 and described signal interface unit 6, timing control unit 7, drive element of the grid 3 and source drive unit 2, compensate IC41, display unit 1 and test pixel unit 5 and be electrically connected.Power supply signal is distributed to power supply unit 8 by described signal interface unit 6, and the display of LVDS pattern is distributed to timing control unit 7.Timing control unit 7 pairs of signals process, the display of the Mini-LVDS pattern that can be identified by source drive unit 2 passes to source drive unit 2, and the clock signal that can identify drive element of the grid 3 and control signal pass to drive element of the grid 3.Described power supply unit 8 is powered for other each unit, as to as described in display unit 1 and test pixel unit 5 supply voltage Vdd is provided.
Described display unit 1 comprises multiple pixels of the arrangement in matrix form, in described red test pixel 51, green test pixel 52, blue test pixel 53 and display unit 1, the pixel-driving circuit of each pixel is traditional 2T1C structure, namely a switching thin-film transistor is comprised, one drives thin film transistor (TFT) and a memory capacitance, this is prior art, does not launch to describe herein.
Described first, second and the 3rd luminance sensor 42,43,44 are respectively used to the brightness gathering red test pixel 51, green test pixel 52 and blue test pixel 53, and monochrome information are passed to and compensate IC41.
Described compensation IC41 is used for according to first, second, and the 3rd luminance sensor 42, 43, the 44 initial moment collected and the red test pixel 51 compensating the moment, green test pixel 52, and the brightness of blue test pixel 53, calculate redness, green, and blue test pixel 51, 52, 53 under canonical reference GTG respectively in the initial moment, the compensation moment reaches the drive current needed for same brightness, calculate the redness compensating the moment more respectively, green, and blue test pixel 51, 52, the redness in the driving voltage needed for 53 and initial moment, green, and blue test pixel 51, 52, the difference of the driving voltage of 53, namely red, green, and blue bucking voltage, by redness, green, and blue bucking voltage passes to source drive unit 2.
Described source drive unit 2 will be for being supplied to red test pixel 51 in display unit 1, green test pixel 52, and it is red in blue test pixel 53, green, and the voltage of the data-signal Data of blue Organic Light Emitting Diode is modified to the voltage of former data-signal Data and red bucking voltage sum respectively, the voltage of former data-signal Data and green bucking voltage sum, and the voltage of former data-signal Data and blue bucking voltage sum, with to redness, green, and blue Organic Light Emitting Diode carries out luminance compensation respectively, display brightness that the brightness decay because of Organic Light Emitting Diode causes can be improved to decline the colour cast that cause different from the oled luminance rate of decay of different colours, keep luminosity and the colour gamut of AMOLED.
Particularly, described drive element of the grid 3 provides sweep signal Gate to the red test pixel 51 in test pixel unit 5, green test pixel 52 and blue test pixel 53, and described source drive unit 2 provides data-signal Data to the red test pixel 51 in test pixel unit 5, green test pixel 52 and blue test pixel 53; The sweep signal Gate and the data-signal Data that are supplied to described red test pixel 51, green test pixel 52 and blue test pixel 53 are arranged with reference to the arbitrary pixel in display unit 1.
Described canonical reference GTG can select 255 GTGs, but is not restricted to 255 GTGs, and other grey decision-making also can as canonical reference GTG.
Described compensation IC41 is built-in with red in the red test pixel 51 in initial moment, green test pixel 52 and blue test pixel 53, the green and brightness of blue organic light emitting diode and relation curve, the gamma curve of electric current and red test pixel 51, green test pixel 52 and blue test pixel 53 is interior drives the electric current of thin film transistor (TFT) and the family curve of voltage.
The specific implementation process that described AMOLED drive system carries out luminance compensation is as follows: if in the compensation moment, obtaining the brightness of described red test pixel 51 under 255 GTGs according to gamma curve is a, and the brightness of red test pixel 51 under 255 GTGs in initial moment is 2a, then compensate the moment, this red test pixel 51 to reach 2a brightness required for drive current be 2 times of the drive current in initial moment, even calculating the drive current in initial moment according to the brightness of red organic light emitting diode and the relation curve of electric current in the red test pixel 51 in initial moment is I, then in the compensation moment, this red test pixel 51 the is issued to 2a drive current needed for brightness at 255 GTGs is 2I, can calculate the driving voltage in initial moment according to the interior driving electric current of thin film transistor (TFT) of red test pixel 51 and the family curve of voltage is again V0, driving voltage required for the compensation moment is V, then red bucking voltage is V-V0.Green and blue bucking voltage can be calculated according to same method.
In sum, AMOLED luminance compensation method of the present invention and AMOLED drive system, have additional and comprise first, second, and the 3rd luminance sensor and compensate the compensating unit of IC, and comprise redness, green, and the test pixel unit of blue test pixel, by first, second, and the 3rd luminance sensor sense redness respectively, green, and blue test pixel is in initial moment and the brightness compensating the moment, and then redness can be calculated by compensating IC, green, and the bucking voltage that blue Organic Light Emitting Diode needs respectively, again to redness, green, and blue Organic Light Emitting Diode carries out luminance compensation respectively, display brightness that the brightness decay because of Organic Light Emitting Diode causes can be improved to decline the colour cast that cause different from the oled luminance rate of decay of different colours, keep luminosity and the colour gamut of AMOLED.
The above, for the person of ordinary skill of the art, can make other various corresponding change and distortion according to technical scheme of the present invention and technical conceive, and all these change and be out of shape the protection domain that all should belong to the claims in the present invention.
Claims (10)
1. an AMOLED luminance compensation method, is characterized in that, comprises the steps:
Step 1, provide an AMOLED drive system, comprising: display unit (1), the source drive unit (2) be electrically connected with described display unit (1), the drive element of the grid (3) be electrically connected with described display unit (1), the compensating unit (4) be electrically connected with described source drive unit (2) and the test pixel unit (5) be electrically connected with source drive unit (2) and drive element of the grid (3);
Described test pixel unit (5) is located at described display unit (1) outward, comprising: a red test pixel (51), a green test pixel (52) and a blue test pixel (53);
Described compensating unit (4) comprises and compensates IC (41) and compensates with described first, second and the 3rd luminance sensor (42,43,44) that IC (41) is electrically connected, described first, second and the 3rd luminance sensor (42,43,44) corresponding red test pixel (51), green test pixel (52) and blue test pixel (53) setting respectively;
Step 2, enter the initial moment, described source drive unit (2) and drive element of the grid (3) provide data-signal (Data) and sweep signal (Gate) to display unit (1) and test pixel unit (5), light described display unit (1), red test pixel (51), green test pixel (52), and blue test pixel (53), described first, second, and the 3rd luminance sensor (42, 43, 44) the red test pixel (51) in initial moment under being captured in default canonical reference GTG respectively, green test pixel (52), and the brightness of blue test pixel (53), and monochrome information being sent to compensation IC (41), described compensation IC (41) is according to the red test pixel (51) in initial moment, green test pixel (52), and it is red in blue test pixel (53), green, and the relation curve of the brightness of blue organic light emitting diode and electric current calculates the redness in initial moment respectively, green, and blue test pixel (51, 52, 53) drive current,
Step 3, enter compensate the moment, the brightness of the red test pixel (51) in moment, green test pixel (52) and blue test pixel (53) is compensated under described first, second and the 3rd luminance sensor (42,43,44) gather a certain GTG respectively, and monochrome information being sent to compensation IC (41), described compensation IC (41) compensates the brightness of the red test pixel (51) in moment, green test pixel (52) and blue test pixel (53) under calculating acquisition canonical reference GTG according to gamma curve;
Step 4, described compensation IC (41) is according to the red test pixel (51) in moment initial under canonical reference GTG, green test pixel (52), and the brightness of blue test pixel (53) compensates the red test pixel (51) in moment respectively with under canonical reference GTG, green test pixel (52), and the relation of the brightness of blue test pixel (53), obtain the redness compensating the moment, green, and blue test pixel (51, 52, 53) be issued to and the drive current needed for initial moment same brightness and the redness in initial moment at canonical reference GTG, green, and blue test pixel (51, 52, 53) relation of drive current, and then calculate the redness compensating the moment, green, and blue test pixel (51, 52, 53) be issued to and the drive current needed for initial moment same brightness at canonical reference GTG,
Step 5, described compensation IC (41) is according to red test pixel (51), green test pixel (52), and drive the electric current of thin film transistor (TFT) and the family curve of voltage in blue test pixel (53), red under calculating canonical reference GTG, green, and blue test pixel (51, 52, 53) respectively in the initial moment, the compensation moment reaches the driving voltage needed for same brightness, then the calculation compensation moment is red respectively, green, and blue test pixel (51, 52, 53) driving voltage needed for and redness of initial moment, green, and blue test pixel (51, 52, 53) difference of driving voltage, namely red, green, and blue bucking voltage,
Step 6, voltage source drive unit (2) being supplied to the data-signal (Data) of red in display unit (1), green and blue Organic Light Emitting Diode are modified to the voltage of former data-signal (Data) and red bucking voltage sum, the voltage of former data-signal (Data) and the voltage of green bucking voltage sum and former data-signal (Data) and blue bucking voltage sum respectively, complete AMOLED luminance compensation.
2. AMOLED luminance compensation method as claimed in claim 1, it is characterized in that, described canonical reference GTG is 255 GTGs.
3. AMOLED luminance compensation method as claimed in claim 1, it is characterized in that, described AMOLED drive system also comprises: signal interface unit (6), timing control unit (7) and power supply unit (8);
Described signal interface unit (6) is electrically connected with described timing control unit (7) and power supply unit (8);
Described timing control unit (7) and described signal interface unit (6), power supply unit (8), drive element of the grid (3) and source drive unit (2) are electrically connected;
Described power supply unit (8) and described signal interface unit (6), timing control unit (7), drive element of the grid (3), source drive unit (2), compensate IC (41), display unit (1) and test pixel unit (5) and be electrically connected.
4. AMOLED luminance compensation method as claimed in claim 1, it is characterized in that, be supplied to described red test pixel (51), the sweep signal (Gate) of green test pixel (52) and blue test pixel (53) and data-signal (Data) and arrange with reference to the arbitrary pixel in display unit (1).
5. AMOLED luminance compensation method as claimed in claim 1, it is characterized in that, described compensation IC (41) is built-in with red in the red test pixel (51) in initial moment, green test pixel (52) and blue test pixel (53), the green and brightness of blue organic light emitting diode and relation curve, the gamma curve of electric current and red test pixel (51), green test pixel (52) and blue test pixel (53) are interior drives the electric current of thin film transistor (TFT) and the family curve of voltage.
6. an AMOLED drive system, it is characterized in that, comprising: display unit (1), the source drive unit (2) be electrically connected with described display unit (1), the drive element of the grid (3) be electrically connected with described display unit (1), the compensating unit (4) be electrically connected with described source drive unit (2) and the test pixel unit (5) be electrically connected with source drive unit (2) and drive element of the grid (3);
Described test pixel unit (5) is located at described display unit (1) outward, comprising: a red test pixel (51), a green test pixel (52) and a blue test pixel (53);
Described compensating unit (4) comprises and compensates IC (41) and compensates with described first, second and the 3rd luminance sensor (42,43,44) that IC (41) is electrically connected, described first, second and the 3rd luminance sensor (42,43,44) corresponding red test pixel (51), green test pixel (52) and blue test pixel (53) setting respectively;
Described first, second and the 3rd luminance sensor (42,43,44) are respectively used to the brightness gathering red test pixel (51), green test pixel (52) and blue test pixel (53), and monochrome information are passed to and compensate IC (41);
Described compensation IC (41) is for according to first, second, and the 3rd luminance sensor (42, 43, 44) the initial moment collected and the red test pixel (51) compensating the moment, green test pixel (52), and the brightness of blue test pixel (53), calculate redness, green, and blue test pixel (51, 52, 53) under canonical reference GTG respectively in the initial moment, the compensation moment reaches the drive current needed for same brightness, calculate the redness compensating the moment more respectively, green, and blue test pixel (51, 52, 53) redness in the driving voltage needed for and initial moment, green, and blue test pixel (51, 52, 53) difference of driving voltage, namely red, green, and blue bucking voltage, by redness, green, and blue bucking voltage passes to source drive unit (2),
Described source drive unit (2) will be for being supplied to the interior red test pixel (51) of display unit (1), green test pixel (52), and it is red in blue test pixel (53), green, and the voltage of the data-signal of blue Organic Light Emitting Diode (Data) is modified to the voltage of former data-signal (Data) and red bucking voltage sum respectively, the voltage of former data-signal (Data) and green bucking voltage sum, and the voltage of former data-signal (Data) and blue bucking voltage sum.
7. AMOLED drive system as claimed in claim 6, it is characterized in that, described canonical reference GTG is 255 GTGs.
8. AMOLED drive system as claimed in claim 6, it is characterized in that, described AMOLED drive system also comprises: signal interface unit (6), timing control unit (7) and power supply unit (8);
Described signal interface unit (6) is electrically connected with described timing control unit (7) and power supply unit (8);
Described timing control unit (7) and described signal interface unit (6), power supply unit (8), drive element of the grid (3) and source drive unit (2) are electrically connected;
Described power supply unit (8) and described signal interface unit (6), timing control unit (7), drive element of the grid (3), source drive unit (2), compensate IC (41), display unit (1) and test pixel unit (5) and be electrically connected.
9. AMOLED drive system as claimed in claim 6, it is characterized in that, described drive element of the grid (3) provides sweep signal (Gate) to the red test pixel (51) in test pixel unit (5), green test pixel (52) and blue test pixel (53), and described source drive unit (2) provides data-signal (Data) to the red test pixel (51) in test pixel unit (5), green test pixel (52) and blue test pixel (53); Be supplied to described red test pixel (51), the sweep signal (Gate) of green test pixel (52) and blue test pixel (53) and data-signal (Data) to arrange with reference to the arbitrary pixel in display unit (1).
10. AMOLED drive system as claimed in claim 6, it is characterized in that, described compensation IC (41) is built-in with red in the red test pixel (51) in initial moment, green test pixel (52) and blue test pixel (53), the green and brightness of blue organic light emitting diode and relation curve, the gamma curve of electric current and red test pixel (51), green test pixel (52) and blue test pixel (53) are interior drives the electric current of thin film transistor (TFT) and the family curve of voltage.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040070558A1 (en) * | 2000-05-24 | 2004-04-15 | Eastman Kodak Company | OLED display with aging compensation |
| CN1573444A (en) * | 2003-06-04 | 2005-02-02 | 株式会社日立显示器 | Liquid crystal display device |
| CN1682267A (en) * | 2002-09-16 | 2005-10-12 | 皇家飞利浦电子股份有限公司 | Display device |
| CN101292276A (en) * | 2005-10-20 | 2008-10-22 | 皇家飞利浦电子股份有限公司 | Illumination device |
| CN103489405A (en) * | 2013-09-30 | 2014-01-01 | 京东方科技集团股份有限公司 | Method, device and system for compensating displaying |
-
2015
- 2015-11-11 CN CN201510767052.6A patent/CN105280139B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040070558A1 (en) * | 2000-05-24 | 2004-04-15 | Eastman Kodak Company | OLED display with aging compensation |
| CN1682267A (en) * | 2002-09-16 | 2005-10-12 | 皇家飞利浦电子股份有限公司 | Display device |
| CN1573444A (en) * | 2003-06-04 | 2005-02-02 | 株式会社日立显示器 | Liquid crystal display device |
| CN101292276A (en) * | 2005-10-20 | 2008-10-22 | 皇家飞利浦电子股份有限公司 | Illumination device |
| CN103489405A (en) * | 2013-09-30 | 2014-01-01 | 京东方科技集团股份有限公司 | Method, device and system for compensating displaying |
Cited By (50)
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