CN102394046B - Method for controlling organic light emitting diode display panel to display image - Google Patents
Method for controlling organic light emitting diode display panel to display image Download PDFInfo
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Abstract
A method for controlling an organic light emitting diode display panel to display an image. The display panel comprises a plurality of sub-pixels which are arranged in an array mode. When the display panel receives a first picture data, the sub-pixel data of the odd-numbered lines of the odd-numbered rows and the even-numbered lines of the even-numbered rows of the display panel in the first picture data are adjusted down to generate a first adjusting data, and the display panel is controlled to display the first adjusting data. When the display panel receives a second image data, the sub-pixel data of the even-numbered lines of the odd-numbered rows and the odd-numbered lines of the even-numbered rows of the display panel in the second image data are adjusted down to generate a second adjusting data, and the display panel is controlled to display the second adjusting data.
Description
[technical field]
The present invention is about a kind of organic light emitting diode display and electricity-saving function thereof, espespecially a kind of OLED display that utilizes space black plug method (spatial black insertion).
[background technology]
Liquid crystal display (Liquid Crystal Display, be called for short LCD) be present the most general type of display, it is because having that external form is frivolous, power consumption is few and the characteristic such as radiationless pollution, replace gradually the CRT monitor of traditional desktop PC, and be widely used in the portable type information products such as mobile computer (notebook), personal digital assistant (PDA).Liquid crystal display system utilizes liquid crystal molecule, under different ordered states, light is produced different polarizations or the characteristic of refraction effect, controls the amount of penetrating of light, and then demonstrates image.
Yet, the dynamic response time that the main shortcoming of LCD is just is long, thereby even picture phenomenon, the especially application when liquid crystal display such as beat is more and more extensive can to produce image fog, decrease resolution when playing dynamic menu, and when size was done larger and larger, said circumstances was even more serious.
Different is, Organic Light Emitting Diode (Organic Light Emitting Diode, be called for short OLED) display because having self-luminosity, wide viewing angle, high contrast, low operating voltage, the dynamic response time is short, bright in luster, the simple panel volume of processing procedure is little and plate thickness is thin etc., and advantage has the trend that replaces gradually LCD.OLED is an additional bias voltage, make inner electronics electricity hole respectively after electric hole transport layer (Hole Transport Layer) and electron transfer layer (Electron Transport Layer), add an organic substance with characteristics of luminescence, within it again in conjunction with the time, form one " excitation photon " (exciton) after, again energy discharged and get back to ground state (ground state), and in the energy that these are released, difference due to selected luminescent material, the part energy is discharged with the form of the light of different colours, and form luminescence phenomenon.
Yet present stage OLED display is still quite short compared to LCD display on serviceable life, and mainly is subject to OLED luminous time length and intensity its serviceable life.With respect to OLED, the power consumption of LCD mainly depends on the power that inner fluorescent tube and operation liquid crystal consume while turning to, and it is irrelevant with the GTG that presents picture color, the power consumption of reviewing the OLED display depends on the luminous intensity of per unit particle, therefore the power consumption of OLED display depends on luminosity or the GTG value of each picture element.Therefore, although the average power consumption of OLED display, lower than LCD display, when the high picture of long-term display color GTG,, as white picture, causes the power consumption of the power consumption of OLED display greater than LCD on the contrary.In addition, the material of OLED can be along with long-time operation under the picture of high gray, and produces the phenomenon of brightness decay, simultaneously the serviceable life of OLED also can with significantly shortening.
[summary of the invention]
One embodiment of the invention provide the method for a kind of control Organic Light Emitting Diode (0LED) display panel show image, and this display panel comprises a plurality of sub-picture elements, in the mode of array, arranges, and the method comprises: receive one first picture data; Downgrade in this first picture data the picture element data corresponding to the even number line of the odd-numbered line of this display panel odd column and even column, to produce one first, adjust data; Control this display panel and show this first adjustment data; This display panel receives one second picture data; Downgrade in this second picture data the picture element data corresponding to the odd-numbered line of the even number line of this display panel odd column and even column, to produce one second, adjust data; And this display panel of control shows this second adjustment data.Another embodiment of the present invention provides the method for a kind of control Organic Light Emitting Diode (OLED) display panel show image, and this display panel comprises a plurality of sub-picture elements, in the mode of array, arranges, and the method comprises: receive one first picture data; Capture in this first picture data corresponding to a picture data for the first time that is not at least one special image; Downgrade this for the first time in picture data corresponding to the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column and even column, adjust data to produce one first; Control this display panel and show this first adjustment data; This display panel receives one second picture data; Capture in this second picture data the picture data for the second time corresponding to this at least one special image not; Downgrade this for the second time in picture data corresponding to the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column and even column, adjust data to produce one second; And this display panel of control shows this second adjustment data.
By locality of the present invention space black frame inserting method, make the power consumption of OLED display effectively reduce, especially when sub-picture element shows the high gray color, it is especially remarkable that it falls lower powered effect, and therefore also significantly promoted the serviceable life of OLED display.
[description of drawings]
Fig. 1 is the poor black method schematic diagram of local space of the present invention.
Fig. 2 is the schematic diagram of brightness adjustment amplitude of the present invention.
Fig. 3 is the schematic diagram of another brightness adjustment amplitude of the present invention.
The space black plug method schematic diagram that Fig. 4 the present invention comprises the black picture carries out the schematic diagram of space another embodiment of black frame inserting method to the OLED display.
Fig. 5 is that the present invention carries out the schematic diagram of the process flow diagram of space black plug to the picture that comprises special image.
Fig. 6 is the process flow diagram that the present invention downgrades display picture brightness.
Fig. 7 is another process flow diagram that the present invention downgrades display picture brightness.
[primary clustering symbol description]
11 first picture 12 second pictures
13 first brightness adjustment pattern 14 second brightness adjustment patterns
20 adjust front picture 21 first adjusts rear pictures
31 second adjust rear picture 41 adjusts rear the first pictures
42 adjust rear the second picture 43 black pictures
51 initial pictures 52 are the special image frame of tool not
53 have the non-special image part of special image frame 54
Picture after 55 special image parts 56 first are processed
57 second process rear picture 501 space black plug programs
502 image adjustment programmes 601 receive the picture step
602 first adjust picture step 603 display frame step
702 second adjust picture step 703 the 3rd adjusts the picture step
704 the 4th adjust the picture step
[embodiment]
For making the general skill person who has the knack of the technical field of the invention can further understand the present invention, hereinafter the spy enumerates several preferred embodiment of the present invention, and coordinate appended graphic, describe in detail constitution content of the present invention and the effect wanting to reach.
Please refer to Fig. 1, it is the poor black method schematic diagram of local space of the present invention.As shown in Figure 1, the picture of OLED display ties up in the time and shows in a continuous manner, and wherein x represents that sub-picture element transverse axis, the y of display represent that the sub-picture element longitudinal axis, the t of display represent time shaft.the reduction power consumption method that the present embodiment adopts is total first and second two kinds of brightness adjustment patterns, the first brightness adjustment pattern 13 is that the sub-picture element to the even column of the odd column of the odd-numbered line of the first picture 11 and even number line carries out brightness adjustment, and being sub-picture element to the odd column of the even column of the odd-numbered line of the second picture 12 and even number line, the second brightness adjustment pattern 14 carries out the power adjustment, the present embodiment system is two kinds of modes that the brightness adjustment pattern is alternate with each other according to this, brightness adjustment is carried out in display frame, that is (2n-1) individual picture is adjusted with the first brightness adjustment pattern 13, and 2n picture adjusted with the second brightness adjustment pattern, or be that (2n-1) individual picture is adjusted with the second brightness adjustment pattern 14, and 2n picture adjusted with the first brightness adjustment pattern 13, wherein n is positive integer.Utilize above-mentioned two kinds of brightness adjustment patterns to use alternately, OLED brightness can be changed by the GTG value that changes sub-picture element.
The method system that antithetical phrase picture element of the present invention carries out brightness adjustment adjusts with equation 1 antithetical phrase picture element, wherein Luma represents the sub-picture element brightness that the original wish of display shows, sub-picture element brightness after Luma ' representative is adjusted, α is a sub-picture element luminance parameter, its major function is for adjusting the brightness of sub-picture element, by changing the α value, the brightness of sub-picture element can suitably be adjusted.Therefore, by equation 1 as can be known, when α=0, the data of sub-picture element can not changed by α, i.e. the original brightness of sub-picture element 100% is used in expression; Ask for an interview Fig. 2, Fig. 2 is the schematic diagram of brightness adjustment amplitude of the present invention, the data of sub-picture element can be changed by α, when α=0.5, before adjusting, half sub-picture element of picture 20 can be adjusted to and have 50% original brightness, and before after adjusting this moment first, 21, picture is adjusted, picture 20 has been saved 25% power; Ask for an interview Fig. 3, Fig. 3 is another schematic diagram of brightness adjustment amplitude of the present invention, and when α=1.0, before adjusting, half sub-picture element of picture 20 is adjusted to not luminance, be that the GTG value is 0 state, before after adjusting this moment second, 31, picture is adjusted, picture 20 has been saved 50% power.Therefore the brightness adjustment of the sub-picture element of OLED display can be by the α value is chosen, and before adjusting, half sub-picture element of picture 20 is adjusted to required brightness.
| ?Luma’＝(1-α)*Luma | ?(1) |
Except above-mentioned space black frame inserting method, the space parallax that the present invention also can carry out alternate manner is black.Ask for an interview Fig. 3, it comprises the space black plug method schematic diagram of black picture for the present invention, the picture of OLED display ties up in the time and shows in a continuous manner, and wherein x represents that sub-picture element transverse axis, the y of display represent that the sub-picture element longitudinal axis, the t of display represent time shaft.Be different from the method that Fig. 1 describes, Fig. 4 represent after the adjustment of brilliance control the first picture 41 and adjust after the second picture 42 between can insert black picture 43, the black picture is that a GTG is 0 complete black picture.According to this embodiment, the application of the method for staggered local space black plug of the present invention is not limited to only adopts aforesaid the first brightness adjustment pattern and the second brightness adjustment pattern to be used alternatingly.
Ask for an interview Fig. 5, it carries out the process flow diagram of space black plug for the present invention to the picture that comprises special image, can do in advance estimation to judge whether initial picture 51 comprises special image for the initial picture 51 of OLED display, wherein special image can be word and/or pattern (Graphic), espespecially is different from dynamic image and thinner character stroke or the lines that need to be identified.If initial picture 51 is judged as the not special image frame 52 of tool, directly it is carried out above-mentioned staggered space black frame inserting method, process rear picture 56 and obtain first; If being judged as, initial picture 51 has special image frame 53, in advance from wherein capturing the special image part 55 that comprises special image and the non-special image part 54 that does not comprise special image, again non-special image part 54 is carried out space black plug program 501, thereafter again with special image part 55 combinations of processing through image adjustment programme 502, and obtain second process after picture 57.
In the method for Fig. 5, the also visual actual demand and do suitable luminosity adjustment of special image part 55, carry out combination with non-special image part 54 again, wherein the brightness adjustment that can do in various degree with non-special image part 54 of special image part 55, namely use different α values; Special image part 55 also can be made the brightness adjustment of same degree with non-special image part 54, namely use identical α value.The method that discloses by the present embodiment, no matter whether oled panel comprise the special image of word or pattern, neither as for because using staggered space of the present invention black frame inserting method to make word that sub-picture element shows and the dim pattern can't identification, that is the method by the present embodiment, the power consumption of OLED display can be in the distortionless situation of special image part 55 and is effectively reduced.
Ask for an interview Fig. 6, Fig. 6 is the process flow diagram that downgrades display picture brightness, wherein display obtains via receiving picture step 601 the sub-picture element data of picture of wanting to downgrade brightness, adjust picture step 602 via first again, with a predetermined luminance ratio, the sub-picture element data of picture are carried out downgrading of brightness, then via display frame step 603, control display and show the sub-picture element of picture that downgrades after brightness.above-mentioned steps is when being applied to the poor black method of local space of the present invention, can be first with making above-mentioned steps corresponding to the sub-picture element data of the even number line of the odd-numbered line of display picture odd column and even column in first picture, process, process making above-mentioned steps corresponding to the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column and even column in second picture again, and follow-up picture is sequentially dealt with according to this, also can process making above-mentioned steps corresponding to the sub-picture element data of the odd-numbered line of the even number line of display picture odd column and even column in first picture, process making above-mentioned steps corresponding to the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column and even column in second picture again, and follow-up picture is sequentially dealt with according to this.
Ask for an interview Fig. 7, Fig. 7 is another process flow diagram that downgrades display picture brightness, wherein display obtains via receiving picture step 601 the sub-picture element data of picture of wanting to downgrade brightness, adjust picture step 702 via second again and adjust picture step 703 in the mode, the 3rd of adjusting GTG and adjust picture step 704 in the mode or the 4th that downgrades electric current and with the mode that downgrades electric current, the sub-picture element data of picture are carried out downgrading of brightness to adjust GTG, then via display frame step 603, control display and show the sub-picture element of picture that downgrades after brightness.above-mentioned steps is when being applied to the poor black method of local space of the present invention, can be first with making above-mentioned steps corresponding to the sub-picture element data of the even number line of the odd-numbered line of display picture odd column and even column in first picture, process, process making above-mentioned steps corresponding to the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column and even column in second picture again, and follow-up picture is sequentially dealt with according to this, also can process making above-mentioned steps corresponding to the sub-picture element data of the odd-numbered line of the even number line of display picture odd column and even column in first picture, process making above-mentioned steps corresponding to the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column and even column in second picture again, and follow-up picture is sequentially dealt with according to this.
The local space black frame inserting method that the present invention utilizes, by the light emitting control of locality, the power consumption of OLED display can reduce effectively, also can be extended significantly on serviceable life.In addition, the staggered space of the OLED display black frame inserting method that is applied to of the present invention, can separately deal with for special image part, makes the OLED display can not make because of the brightness of adjustment part molecule picture element word and pattern distortion in picture.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (14)
1. method of controlling Organic Light Emitting Diode (OLED) display panel show image, this display panel comprises a plurality of sub-picture elements, in the mode of array, arranges, the method comprises:
Receive one first picture data;
Downgrade in this first picture data the picture element data corresponding to the even number line of the odd-numbered line of this display panel odd column and even column, to produce one first, adjust data;
Control this display panel and show this first adjustment data;
This display panel receives one second picture data;
Downgrade in this second picture data the picture element data corresponding to the odd-numbered line of the even number line of this display panel odd column and even column, to produce one second, adjust data; And
Control this display panel and show this second adjustment data.
2. method according to claim 1, it is characterized in that, separately be included in and control this display panel and show that this is first while adjusting data, control this display panel and show in this first picture data picture element data corresponding to the odd-numbered line of the even number line of this display panel odd column and even column, wherein this first is adjusted data system and is independent of the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column that is downgraded and even column; And when this display panel of control shows these the second adjustment data, control this display panel and show in this second picture data picture element data corresponding to the even number line of the odd-numbered line of this display panel odd column and even column, wherein this second is adjusted data system and is independent of the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column that is downgraded and even column.
3. method according to claim 1, it is characterized in that, downgrading in this first picture data corresponding to the sub-picture element data of this display panel, is to downgrade ratio according to a predetermined luminance to downgrade in this first picture data picture element data corresponding to this display panel; And downgrade in this second picture data corresponding to the sub-picture element data of this display panel, be to downgrade ratio according to this predetermined luminance to downgrade in this second picture data picture element data corresponding to this display panel.
4. according to claim 1 or 3 described methods, it is characterized in that, downgrading in this first picture data corresponding to the sub-picture element data of this display panel, is to downgrade electric current and adjust GTG one or both mode of combination wherein to downgrade in this first picture data picture element data corresponding to this display panel; And downgrade in this second picture data corresponding to the sub-picture element data of this display panel, be to downgrade electric current and adjust GTG one or both mode of combination wherein to downgrade in this second picture data picture element data corresponding to this display panel.
5. method of controlling Organic Light Emitting Diode (OLED) display panel show image, this display panel comprises a plurality of sub-picture elements, in the mode of array, arranges, the method comprises:
Receive one first picture data;
Capture in this first picture data corresponding to a picture data for the first time that is not at least one special image;
Downgrade this for the first time in picture data corresponding to the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column and even column, adjust data to produce one first;
Control this display panel and show this first adjustment data;
This display panel receives one second picture data;
Capture in this second picture data the picture data for the second time corresponding to this at least one special image not;
Downgrade this for the second time in picture data corresponding to the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column and even column, adjust data to produce one second; And
Control this display panel and show this second adjustment data.
6. method according to claim 1 or 5, is characterized in that, comprises that separately controlling this display panel inserts black picture.
7. method according to claim 5, is characterized in that, this at least one special image comprises character and/or pattern (Graphic).
8. method according to claim 5, it is characterized in that, separately be included in and control this display panel and show that this is first while adjusting data, control this display panel show this for the first time in picture data corresponding to the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column and even column, wherein this first is adjusted data system and is independent of the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column that is downgraded and even column; And when this display panel of control shows these the second adjustment data, control this display panel show this for the second time in picture data corresponding to the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column and even column, wherein this second is adjusted data system and is independent of the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column that is downgraded and even column.
9. according to claim 5 or 8 described methods, is characterized in that, separately is included in to control this display panel and show that this first while adjusting data, controls this display panel and show this at least one special image; And when this display panel of control shows these the second adjustment data, control this display panel and show this at least one special image.
10. according to claim 5 or 8 described methods, is characterized in that, separately comprises:
Adjust in this first picture data the data corresponding to this at least one special image, adjust rear special image data to produce one first, and when this display panel of control shows these the first adjustment data, control this display panel and show the rear special image data of this first adjustment; And
Adjust in this second picture data the data corresponding to this at least one special image, adjust rear special image data to produce one second, and when this display panel of control shows these the second adjustment data, control this display panel and show the rear special image data of this second adjustment.
11. method according to claim 10, is characterized in that, separately comprises:
When this display panel of control shows these the second adjustment data, control this display panel and show the rear special image data of this first adjustment.
12. according to claim 5 or 8 described methods, is characterized in that, separately comprises:
When this display panel of control shows these the first adjustment data, control this display panel and show the rear special image data of this second adjustment.
13. method according to claim 5, it is characterized in that, downgrade this for the first time in picture data corresponding to the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column and even column, be according to a predetermined luminance downgrade ratio downgrade this for the first time in picture data corresponding to the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column and even column; And downgrade this for the second time in picture data corresponding to the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column and even column, be according to this predetermined luminance downgrade ratio downgrade this for the second time in picture data corresponding to the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column and even column.
14. according to claim 5 or 13 described methods, it is characterized in that, downgrade this for the first time in picture data corresponding to the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column and even column, be downgrade electric current and adjust GTG one or both mode of combination wherein downgrade this for the first time in picture data corresponding to the sub-picture element data of the even number line of the odd-numbered line of this display panel odd column and even column; And downgrade this for the second time in picture data corresponding to the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column and even column, be downgrade electric current and adjust GTG one or both mode of combination wherein downgrade this for the second time in picture data corresponding to the sub-picture element data of the odd-numbered line of the even number line of this display panel odd column and even column.
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| TW100130123A TWI436336B (en) | 2011-08-23 | 2011-08-23 | Method for controlling organic light emitting diode display displaying images |
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| KR102120467B1 (en) * | 2015-06-30 | 2020-06-09 | 엘지디스플레이 주식회사 | Timing controller of operating selective sensing and organic light emitting display device comprising thereof |
| CN105575333B (en) * | 2015-12-22 | 2018-03-30 | 深圳市华星光电技术有限公司 | OLED display and source electrode driver |
| CN110321907B (en) * | 2018-03-28 | 2021-08-17 | 京东方科技集团股份有限公司 | Data processing sequence determining method, display device and display method thereof |
| CN110277074B (en) * | 2019-06-12 | 2022-03-08 | 福建华佳彩有限公司 | Cross striation improvement method and storage device |
| CN112750399A (en) * | 2020-12-31 | 2021-05-04 | 上海天马有机发光显示技术有限公司 | Display panel driving method and device, display device, equipment and storage medium |
| CN112599092A (en) * | 2020-12-31 | 2021-04-02 | 上海天马有机发光显示技术有限公司 | Organic light emitting display panel, driving method thereof and organic light emitting display device |
| CN115691369A (en) * | 2021-07-21 | 2023-02-03 | 北京京东方光电科技有限公司 | Display method of display panel, display control device of display panel and display device |
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