CN104077991A - Display device and color temperature adjusting method thereof - Google Patents
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Abstract
The invention discloses a display device and a color temperature adjusting method thereof. The color temperature adjusting method comprises the steps of acquiring time information, environment state, temperature information, external light source information and user situational information or the combination of all the information, and judging and adjusting the color temperature or frequency spectrum distribution corresponding to a display frame of the display device according to the time information, environment state, temperature information, external light source information and user situational information or the combination of all the information.
Description
Technical field
The present invention has about a kind of color temperature adjusting method, and relates to especially a kind of display device that can dynamically adjust colour temperature.
Background technology
Colour temperature is generally not identical for the cognition on climate temperature with us, what colour temperature was described is " color change of light under different-energy ", and meaning is that what color the light that energy is low is, what color the light that energy is high is again, and its linear module is K (Kelvin, Degree Kelvin).Red, orange, yellow, green, blue, blue, purple have formed spectrum, and the red photochromic custom in one end of spectrum is called warm colour or low colour temperature; One end custom of spectrum indigo plant is called cool colour or high color temperature.
Energy is higher, and the colour temperature of light is just higher.Color change from low to high of colour temperature order is " red, white, indigo plant ", as an example of candle example, the colour temperature of bulb is about 1000 to 2500K, wherein belongs to lower colour temperature, partially red, partially yellow warm tones that its light presents; The colour temperature that approaches white light arrives 5500K about 5000K, as the light that flashlamp sent; The light that colour temperature exceedes 7000K can present partially blue cool tone, the daylight lamp in sunlight, office during as blue sky and white cloud etc.Can learn thus, " colour temperature is higher, and light is partially blue; Colour temperature is lower, and light is partially red ".
Moreover known according to medical research, psychology and the physiology of the color of color or light to people has a great impact, and as blueness can slow down the rhythm of the heart, adjustment, gets rid of stress.Cream-coloured, light blue, light gray is conducive to quiet rest and sleep, eliminates tired.Red, orange, yellow can make people's excitement, inspires enthusiasm.White can make hyperpietic's Blood pressure drop, even-tempered and good-humoured; Redness makes human blood voltage rise high, accelerated breathing.
In addition, because electronic technology development is rapid, industry is constantly developed the electronic installation of tool show image information of all kinds, for example Plasmia indicating panel (Plasma Display Panel, PDP), liquid crystal indicator (Liquid Crystal Display, LCD), the display such as organic light-emitting diode display (Organic Light Emitting Display, OLED) device and projector (projector).General display all can have several prefabricated colour temperature options to be available for users to manually select, common 5400K, 6500K, the 9300K of comprising.The numeral of option is larger above, represents that colour temperature is higher, also cool tone more relatively just of picture; On the contrary, numeral is less, represents that colour temperature is lower, also warm tones more relatively just of picture.
The light source of high color temperature that display adopts or the light source of low colour temperature, all can have influence on and view and admire the quality of image information and people's visual experience and psychology, and, under prior art, all to adopt fixing colour temperature or need user manually to adjust colour temperature, get off to be for a long time easy to cause the tired of user's body and mind, and then have influence on people's health.
Summary of the invention
The embodiment of the present invention proposes a kind of display device and colour temperature thereof or spectrum distribution, strong and weak method of adjustment, can be dynamically automatically adjusts the corresponding display light of display frame of display device or the colour temperature of light source or spectrum distribution, power according to extraneous context or according to user's setting.
The embodiment of the present invention provides a kind of display device and colour temperature thereof or spectrum distribution, strong and weak method of adjustment.The display device of tool colour temperature or spectrum distribution, strong and weak method of adjustment comprises display panel, data driver, scanner driver and controller.Display panel has multiple data lines of first direction and multiple sweep traces of second direction, and described first direction and second direction orthogonal in fact.Data driver is electrically coupled to display panel, and described data driver is in order to receive and according to the first control signal, to provide multiple data drive signal to be sent to display panel via data line.Scanner driver is electrically coupled to display panel, and described scanner driver is in order to receive and according to the second control signal, to provide multiple scanning drive signal to be sent to display panel via sweep trace.Controller is electrically coupled to data driver and scanner driver, described controller is in order to receive raw video data and colour temperature or spectrum distribution, strong and weak adjustment information, and transmits respectively the first control signal and second and control signal to its corresponding data driver and scanner driver.Wherein, look-up table is searched or compared to controller according to raw video data, colour temperature or spectrum distribution, strong and weak adjustment information, judge and transmit first and control signal to data driver, to adjust raw video data corresponding data drive signal, to adjust the corresponding colour temperature of display frame of display panel or spectrum distribution, power.And this colour temperature or spectrum distribution, strength distribution are corresponding to this colour temperature or spectrum distribution, strong and weak adjustment information.
In one of them embodiment of the present invention, this display device changes in display panel elementary area transmittance or light-emitting component, the spectrum distribution of luminescence unit, power according to the data drive signal after adjusting.
In one of them embodiment of the present invention, wherein light-emitting component, luminescence unit are self-emission device.
In one of them embodiment of the present invention, have more multiple coloured light light sources and adjust colour temperature or spectrum distribution, power by controlling at least one of them power, light and shade or open and close time of multiple coloured light light sources of display device.
In one of them embodiment of the present invention, controlled this coloured light light source is white light source.
In one of them embodiment of the present invention, wherein colour temperature along with the time gradual increase or reduce.
In one of them embodiment of the present invention, wherein controlled colour temperature be synthesize the light source of multiple discrete wavebands or multiple continuous wave bands, multiple coloured light is reached.
In one of them embodiment of the present invention, also comprise the context that uses detecting unit detecting display device, and obtain colour temperature or spectrum distribution, strong and weak adjustment information according to context.
In one of them embodiment of the present invention, according to the color temperature value of the colour temperature after colour temperature or spectrum distribution, strong and weak adjustment information adjustment or spectrum distribution, strong and weak value for being set by user or operating system in advance.
In one of them embodiment of the present invention, colour temperature or spectrum distribution, strong and weak adjustment information are temporal information, environmental information, external light source information, user's contextual information or its combination.
In one of them embodiment of the present invention, also comprise and obtain this temporal information by timing unit, counting unit.
In one of them embodiment of the present invention, temporal information is in order to represent that the current time is daytime, evening, noon, afternoon, morning, dusk, midnight or midnight or in order to represent season, solar term.
In one of them embodiment of the present invention, temporal information is in order to represent zero count.
In one of them embodiment of the present invention, in the time that the current time is daytime, increase colour temperature, the display frame that makes display device is partially blue, or adjust spectrum distribution, power makes the display frame of display device partially blue; In the time that the current time is dusk, evening, midnight, downgrade colour temperature, make the partially red or inclined to one side chrysanthemum of the display frame of display device, or adjust spectrum distribution, power and make the partially red or inclined to one side chrysanthemum of the display frame of display device.
The present invention separately proposes a kind of color temperature adjusting method, can be used for adjusting the Melatonin of a biosome.
In sum, the display device that the embodiment of the present invention proposes and colour temperature thereof or spectrum distribution, strong and weak method of adjustment, utilize controller acquisition time information, environmental information, external light source information, user's contextual information or its combination, and according to temporal information, environmental information, external light source information, user's contextual information or its combination and raw display data, look-up table, judge and adjust the corresponding display light of display frame of display device or the colour temperature of light source or spectrum distribution, power.Thus, can be dynamically automatically adjust the corresponding display light of display frame of display device or the colour temperature of light source or spectrum distribution, power according to extraneous context or according to user's setting.
For enabling further to understand feature of the present invention and technology contents, refer to following about detailed description of the present invention and accompanying drawing, but these explanations with appended graphic be only for the present invention is described, but not interest field of the present invention is done to any restriction.
Brief description of the drawings
Fig. 1 is had the schematic diagram of display device of colour temperature or spectrum distribution, strong and weak method of adjustment according to an embodiment of the invention.
Fig. 2 is the schematic diagram of the detecting unit in display device according to an embodiment of the invention.
Fig. 3 is according to another embodiment of the present invention in order to the timing unit of acquisition time information, the schematic diagram of counting unit.
Fig. 4 is progressive adjustments colour temperature according to yet another embodiment of the invention or spectrum distribution, strong and weak schematic diagram.
The schematic diagram of the pixel that Fig. 5 A illustrates for corresponding diagram 1.
The schematic diagram of the pixel that Fig. 5 B illustrates for another corresponding diagram 1.
Fig. 6 A is the schematic diagram of light source spectrum distribution according to an embodiment of the invention to Fig. 6 C.
Fig. 7 A is the schematic diagram that gamma curve distributes according to an embodiment of the invention to Fig. 7 B.
Fig. 8 is the process flow diagram of colour temperature or spectrum distribution, strong and weak method of adjustment according to an embodiment of the invention.
Wherein, description of reference numerals is as follows:
100: display device
110: display panel
112: pixel
120: data driver
130: scanner driver
140: controller
150: look-up table
210: detecting unit
310: timing unit, counting unit
BL, BL1, BL2: blue light
BLC1, BLC11, BLC21, BLC11 ', BLC21 ': curve
CTMD: colour temperature or spectrum distribution, strong and weak adjustment information
CS1, CS2: control signal
DATA: raw video data
D1～DM: data line
DS1～DSM: data drive signal
DE1: first direction
DE2: second direction
GL, GL1, GL2: green glow
GLC, GLC1, GLC2: curve
PIX: pixel
R1, G1, B1, R2, G2, B2, W2: sub-pixel
RL, RL1, RL2: ruddiness
RLC1, RLC2, RLC11, RLC21: curve
S1～SN: sweep trace
SS1～SSN: scanning drive signal
S810, S820, S830: step
T1～T5: time interval
WL: white light
WLC1, WLC2, WLC11, WLC11 ': curve
Embodiment
Below describing more fully various exemplary embodiments referring to alterations, in alterations, show some exemplary embodiments.But concept of the present invention may be with many multi-form embodiments, and should not be construed as and be limited to the exemplary embodiments set forth herein.Definite, provide these exemplary embodiments to make the present invention will be for detailed and complete, and will fully pass on the category of concept of the present invention to those who familiarize themselves with the technology.All graphic in, can be for clear and lavish praise on oneself size and the relative size in Ceng Ji district.Similar numeral is indicated like all the time.
Although should be understood that herein and may describe various elements by term first, second, third, etc., these elements are not limited by these terms should.These terms are in order to distinguish an element and another element.Therefore the first element of, below discussing can be described as the second element and does not depart from the teaching of concept of the present invention.As used herein, term " and/or " comprise any one and one or many person's all combinations in project of listing that are associated.
(embodiment of the display device of tool colour temperature or spectrum distribution, strong and weak method of adjustment)
Please refer to Fig. 1, Fig. 1 is had the schematic diagram of display device of colour temperature or spectrum distribution, strong and weak method of adjustment according to an embodiment of the invention.The display device 100 of the present embodiment comprises display panel 110, data driver 120, scanner driver 130 and controller 140.Multiple data line D1 that display panel 110 has a first direction DE1 are to multiple sweep trace S1 of DM and second direction DE2 to SN, and wherein first direction DE1 is vertical in fact with second direction DE2.Data driver 120 is electrically coupled to display panel 110.Scanner driver 130 is electrically coupled to display panel 110.Controller 140 is electrically coupled to data driver 120 and scanner driver 130.The display device 100 of the embodiment of the present invention can be Plasmia indicating panel (Plasma Display Panel, PDP), liquid crystal indicator (Liquid Crystal Display, LCD), organic light-emitting diode display (Organic Light Emitting Display, OLED) device and projector (projector), but be not limited with the present embodiment.
Data driver 120 is in order to reception control signal CS1, and provides multiple data drive signal DS1 to be sent to display panel 110 via multiple data line D1 to DM to DSM according to control signal CS1.
Scanner driver 130 is in order to reception control signal CS2, and provides multiple scanning drive signal SS1 to be sent to display panel 110 via multiple sweep trace S1 to SN to SSN according to control signal CS2.
Controller 140 is in order to receive raw video data DATA and colour temperature or spectrum distribution, strong and weak adjustment information CTMD, and respectively transfer control signal CS1 and control signal CS2 to its corresponding data driver 120 and scanner driver 130.Look-up table 150 is searched or compared to controller 140 according to raw video data DATA, colour temperature or spectrum distribution, strong and weak adjustment information CTMD, judge and transfer control signal CS1 to data driver 120, to adjust the corresponding data drive signal DS1 of raw video data DATA to DSM, and then to adjust the corresponding colour temperature of display frame of display panel 110 or light source spectrum distribution, power.And, colour temperature or light source spectrum distribution, strong and weak corresponding to colour temperature or light source spectrum distribution, strong and weak adjustment information.
Please refer to Fig. 2, Fig. 2 is the schematic diagram of the detecting unit in display device according to an embodiment of the invention.The detecting unit 210 of the present embodiment can be detector or sensor, in order to the context of detecting or sensing display device 100, obtain colour temperature or spectrum distribution, strong and weak adjustment information CTMD, and by colour temperature or spectrum distribution, strong and weak adjustment information CTMD provides to controller 140 so that the processing of controller 140 follow-up phases.Below to further illustrate, about the relevant action of the display device of tool colour temperature or spectrum distribution, strong and weak method of adjustment.
Referring to Fig. 1 and Fig. 2, in the embodiment of the present invention, utilize detecting unit 210 to detect the context of display device 100, to obtain relevant colour temperature or spectrum distribution, strong and weak adjustment information CTMD, and described colour temperature or spectrum distribution, strong and weak adjustment information CTMD can be temporal information, environmental state information, external light source information, user's contextual information or its at least one of them, but be not limited with the cited person of the present embodiment.Detecting unit 210 can be optical detector, hot end instrument or temperature-sensitive sticker, but not as limit, as long as detecting or the external environment condition of sensing display device 100 or the internal environment of display device 100 are all the scopes that the detecting unit 210 of the present embodiment can detect to obtain colour temperature or spectrum distribution, strong and weak adjustment information CTMD.In the time that detecting unit 210 is detected context, be sent to controller 140 after the state of this context can being converted to colour temperature or spectrum distribution, strong and weak adjustment information CTMD.Then, controller 140 is understood according to received raw video data DATA and colour temperature or spectrum distribution, strong and weak adjustment information CTMD comes and look-up table 150 is done a judgement.In the time that colour temperature or spectrum distribution, strong and weak adjustment information CTMD correspond to the first color temperature value of look-up table 150, controller 140 can output corresponding to the control signal CS1 of the first color temperature value to data driver 120.
Subsidiary one carry be, look-up table 150 can be disposed in storage element (not illustrating), and the storage element of the present embodiment can be light shield ROM (read-only memory) (Mask ROM), erasable formula ROM (read-only memory) (EPROM), electric erasable read-only memory (EEPROM) or flash memory (Flash Memory).Colour temperature in look-up table 150 or light source spectrum distribution, power can be set by user or operating system in advance, or deviser can set some colour temperature initial values at look-up table 150 in advance.
Then,, when data driver 120 receives this control signal CS1 corresponding to the first color temperature value, can adjust the corresponding luma data voltage of raw video data DATA according to this control signal CS1.That is to say, data driver 120 can be exported the multiple pixels of a new data drive signal DS1 corresponding to the first color temperature value to DSM to display panel 110, and then the colour temperature of the display frame of display panel 110 is adjusted to the first be scheduled to color temperature value.
Specifically, in the time that controller 140 does not receive colour temperature or spectrum distribution, strong and weak adjustment information CTMD and maybe need not adjust colour temperature, the corresponding luma data voltage of raw video data DATA can (for example transmit multiple pixels of data drive signal DS1 to DSM to display panel 110 by data driver 120, pixel 112 be multiple pixels one of them), with the display frame that shows that raw frames data DATA will present.On the other hand, when controller 140 receives colour temperature or spectrum distribution, when strong and weak adjustment information CTMD and palpus are adjusted colour temperature, controller 140 can be according to colour temperature or spectrum distribution, strong and weak adjustment information CTMD and raw video data DATA come do one relatively and judge with look-up table 150, then transfer control signal CS1 is to data driver 120, now data driver 120 can be revised luma data voltage that raw video data DATA corresponds to reach needed colour temperature according to control signal CS1, and transmit the multiple pixels (for example pixel 112) of data drive signal DS1 to DSM to display panel 110, change elementary area transmittance or light-emitting component in display panel 110, the spectrum distribution of luminescence unit, strong and weak, display frame and this display frame meeting to show with this with the raw video data DATA finely tuning reach the first color temperature value of being scheduled to.In this enforcement, light-emitting component, luminescence unit can be self-emission device, for example Organic Light Emitting Diode (organic light emitting diode), but be not limited with the present embodiment.
Accordingly, in the time reaching predetermined color temperature value, under the effect in naked eyes persistence of vision, very can materially affect not view and admire the corresponding original display picture of raw video data DATA of unjustified colour temperature to user.In other words, the adjustment of colour temperature not only can excessive influence not viewed and not admired the quality of image frame to user, and, if the appropriateness adjustment of colour temperature coordinates people's daily life system, physiological function or duty to contribute to promote people's physical and mental health to promote work efficiency.Furthermore, this disclosure can be used for anti-melancholy, Cure for insomnia, improvement hot-tempered enter the problems such as disease, spirit be not good, therefore, the display device 100 of the adjustment of tool colour temperature can also allow user use for a long time relievedly.
Certainly, in the action of above-mentioned display device 100, have and conventionally know that the knowledgeable understands as this area, controller 140 is in the start of transfer control signal CS1, also can export control signal CS2 to scanner driver 130, and in the present embodiment, control signal CS2 can't be subject to the impact of colour temperature or spectrum distribution, strong and weak adjustment information CTMD, but is not limited with the present embodiment.
In ensuing multiple embodiment, description is different to the part of above-mentioned Fig. 1～Fig. 2 embodiment, and all the other clippeds are identical with the part of above-mentioned Fig. 1～Fig. 2 embodiment.In addition,, for the purpose of convenient illustrations, similar reference number or label are indicated similar element.
(another embodiment of the display device of tool colour temperature or spectrum distribution, strong and weak method of adjustment)
Please refer to Fig. 3, Fig. 3 is according to another embodiment of the present invention in order to the timing unit of acquisition time information, the schematic diagram of counting unit.In order more to clearly demonstrate the present embodiment, referring to Fig. 1 and Fig. 3, timing unit, counting unit 310 that the display device 100 of the present embodiment is utilized can be in order to obtain the temporal information in colour temperature or spectrum distribution, strong and weak adjustment information CTMD.Timing unit, counting unit 310 can be clock or timer, but not be limited with the present embodiment.
Timing unit, the counting unit 310 of the present embodiment can be sent to controller 140 by relevant temporal information (being also the one in colour temperature or spectrum distribution, strong and weak adjustment information CTMD), and in another embodiment, be that controller 140 captures relevant temporal information to timing unit, counting unit 310, this is not limited with the present embodiment.Furthermore, in the time that user sets with temporal mode the time that will adjust colour temperature, controller 140 can transmit timing unit, counting unit 310 and the temporal information come do one relatively with look-up table 150 and judge, sends out the control signal CS1 corresponding to the second color temperature value.When data driver 120 receives this control signal CS1 corresponding to the second color temperature value, can adjust the corresponding luma data voltage of raw video data DATA according to control signal CS1.That is to say, data driver 120 can be exported the multiple pixels of a new data drive signal DS1 corresponding to the second color temperature value to DSM to display panel 110, and then adjusts the colour temperature of the display frame of display panel 110.
In addition, the temporal information in the present embodiment can represent a zero count, and in another embodiment, temporal information can be expressed as any and information time correlation, and this is not limited with the present embodiment.For instance, user sets the zero count of three hours by any input media or with operating system, wish that the current colour temperature (for example 7000K) of the display frame of display panel 110 can change over the second color temperature value (for example 10000K) after three hours.Therefore, after the time of three hours, timing unit, counting unit 310 meeting transmission start time information are to controller 140, this Time Controller 140 can be made corresponding action as above-mentioned mechanism with data driver 120, the colour temperature of the display frame of display panel 110 (7000K) is adjusted into the second color temperature value (10000K) of being scheduled to.
In an embodiment more, temporal information more can represent the current time, and the described current time is daytime, evening, noon, afternoon, morning, dusk or midnight, or season, solar term.That is to say, user or deviser can demand own or design requirement in look-up table 150, preset some color temperature values according to temporal information.In order to better understand the present embodiment, be described taking daytime and evening as example at this, for example daytime, corresponding color temperature value was the 3rd color temperature value 10000K, evening, corresponding color temperature value was the 4th color temperature value 1000K, wherein suppose in the present embodiment, daytime be 6 of mornings to the period of 6 in the evening, be that at 6 in evening is the period of 6 in the morning to evening.
In the time that the current time is daytime, display device 100 can increase colour temperature to the three color temperature values (meaning i.e. the display frame of blueness partially) of the display frame of its display panel 110, for example, be the 10000K in this example; In the time that the current time is evening, display device 100 can downgrade colour temperature to the four color temperature values (the i.e. display frame of redness or chrysanthemum look partially of meaning) of the display frame of its display panel 110, for example, be 1000K.Whereby, display device 100 can automatically dynamically be adjusted the colour temperature of the display frame of display panel 110 according to temporal information.In one embodiment, the time at dusk and midnight also can count in the time in evening.
In addition, it should be noted that in the time that the current time is daytime, by adjusting display light or light source spectrum distribution, power can make the display frame of display device partially blue; In the time that the current time is evening, can make the partially red or inclined to one side chrysanthemum of the display frame of display device, the display frame that wherein display light or light source are corresponding display device by adjusting display light or light source spectrum distribution, power.
(embodiment again of the display device of tool colour temperature or spectrum distribution, strong and weak method of adjustment)
Please refer to Fig. 4, Fig. 4 is progressive adjustments colour temperature according to yet another embodiment of the invention or spectrum distribution, strong and weak schematic diagram.In order to better understand the present embodiment, referring to Fig. 1 and Fig. 4, the display device 100 of the present embodiment can along with the time gradual increase or reduce colour temperature, that is to say, user or deviser can the display device 100 in the present embodiment set progressive adjustments colour temperature according to its demand.For instance, as shown in Figure 4, first just with gradual increase colour temperature, when user's setting-up time, interval T1 is respectively 2000K, 4000K, 6000K, 8000K and 10000K to the color temperature value of T5, in the time that the time constantly advances, the colour temperature of the display frame of display panel 110 can be increased to time interval T1 to T5 the corresponding color temperature value of setting.
On the other hand, with gradual reduction colour temperature, when user's setting-up time, interval T1 is respectively 11000K, 9000K, 7000K, 5000K and 3000K to the color temperature value of T5, in the time that the time constantly advances, the colour temperature of the display frame of display panel 110 can be reduced to time interval T1 to T5 the corresponding color temperature value of setting.By this, the mode of progressive adjustments colour temperature contributes to have the user of different demands to use this display device 100 according to the different periods.Subsidiary one carry be, the numeral that the present embodiment sets only for explanation just, be not limited with the present embodiment, in brief, for example do not departing from, according to certain parameter (, time, temperature, humidity) come under the spirit of progressive adjustment colour temperature, all belong in the scope that technological thought of the present invention will disclose.
Subsidiary one carry be, time interval T1 can set the time span of each time interval T1 to T5 according to actual demand to T5, for example, time interval T1 in T5 each or some is definite value, or time interval T1 is different value to each in T5.Although the time interval T1 that the present embodiment is given an example only has five to T5, shoulding be understood to this is not the restriction using five time intervals as the embodiment of the present invention.
Furthermore, the embodiment of the present invention can be applied to lighting field by the method for this progressive adjustments colour temperature, meaning need to be according to the lighting field of different automatically progressive increases of period or progressive reduction colour temperature, all belongs in the spiritual scope that the embodiment of the present invention will disclose.
For the operation workflow of the display device of teaching tool colour temperature of the present invention or spectrum distribution, strong and weak method of adjustment in more detail, below graphicly do further thin portion explanation especially exemplified by another.
Please refer to Fig. 5 A, the schematic diagram of the pixel that Fig. 5 A illustrates for corresponding diagram 1.In order more to clearly demonstrate the present embodiment, in if desired referring to Fig. 1 to Fig. 5 A, the multiple pixels in the display panel 110 that the pixel 112 in Fig. 5 A is Fig. 1 wherein one.And, how to utilize multiple coloured light light sources to go the colour temperature of the display frame of adjusting display panel 110 in order to be described in more detail, be described taking pixel 112 as example at this.In one embodiment, pixel 112 comprises sub-pixel R1, G1 and B1, for example, if the light-emitting component of display panel 110, luminescence unit are self-emission device (oled panel), sub-pixel R1, G1 and B1 (corresponding to respectively ruddiness, green glow and blue light Organic Light Emitting Diode) can launch respectively ruddiness RL, green glow GL and blue light BL, and meaning forms the primaries of colour picture.
If display panel 110 is the panel that non-self-emission device forms, for example display panels, launch light by backlight (backlight), after through by elementary area transmittance (in one embodiment, this is LCD penetration) amount of light determine luminous intensity, finally convert coloured light to by colored filter (i.e. red, the green and blue filter of meaning) again, sub-pixel R1, G1 and B1 can launch respectively ruddiness RL, green glow GL and blue light BL.
In the time that display device 100 (having multiple coloured light light sources) wish is adjusted the colour temperature of its display frame, can adjust colour temperature or light source spectrum distribution, power by controlling at least one of them power, light and shade or open and close time of multiple coloured light light sources of display device.
For instance, when display device 100 wishs downgrade the colour temperature of the display frame of display panel 110, in fact can be by the LCD penetration of sending the sub-pixel R1 with low colour temperature ruddiness RL and being strengthened its luminous intensity or increase its ruddiness RL, or relatively reach and downgrade colour temperature sending LCD penetration that the sub-pixel B1 with high color temperature blue light BL reduced its luminous intensity or reduce its blue light BL.On the other hand, when display device 100 wishs increase the colour temperature of the display frame of display panel 110, in fact can be by the LCD penetration of sending the sub-pixel B1 with high color temperature blue light BL and being strengthened its luminous intensity or increase its blue light BL, or relatively by the LCD penetration of sending the sub-pixel R1 with low colour temperature ruddiness RL and being reduced its luminous intensity or reduce its ruddiness RL.Certainly, can utilize data driver 120 to control to DSM to the data drive signal DS1 of display panel that DM is sent to 110 via data line D1 in this so-called luminous intensity or LCD penetration, meaning adjusts the corresponding luma data voltage of raw video data DATA.
In another embodiment, please refer to Fig. 5 B, the schematic diagram of the pixel that Fig. 5 B illustrates for another corresponding diagram 1.Pixel 112 in Fig. 5 B comprises sub-pixel R2, G2, B2 and W2, different from above-mentioned Fig. 5 A embodiment, and the pixel 112 of the present embodiment is to have the 4th sub-pixel W2, also can send the sub-pixel W2 of white light WL.Therefore, the embodiment of the present invention can be adjusted by the luminous intensity of adjustment sub-pixel W2 or LCD penetration the colour temperature of the display frame of display panel 110, but be not limited with the present embodiment, in other embodiments, as long as can be by adjusting elementary area penetrance or light-emitting component, it be all in the present invention's spiritual scope that will disclose that the spectrum distribution of luminescence unit, power or its combine.
The embodiment of the present invention also can be adjusted the colour temperature of display frame or light source spectrum distribution, power from the design angle of frequency spectrum, and meaning can utilize the light source of multiple discrete wavebands or multiple continuous wave bands or multiple coloured light light source to adjust colour temperature or light source spectrum distribution, power.
Please refer to Fig. 6 A to Fig. 6 C, Fig. 6 A is the schematic diagram of light source spectrum distribution according to an embodiment of the invention to Fig. 6 C.In Fig. 6 A, transverse axis represents that wavelength and Z-axis represent spectral energy density.In the present embodiment, the figure that ruddiness RL, green glow GL and blue light BL present on frequency spectrum is one bell, its respectively corresponding curve be curve RLC1, GLC1 and BLC1, and curve RLC1, GLC1 and BLC1 synthesized or the white light curve that is mixed into are curve WLC1.If downgrade the colour temperature of display frame or light source spectrum distribution, power, meaning will increase luminous intensity or its LCD penetration of ruddiness, the curve RLC1 of ruddiness can change into curve RLC2 (having the ruddiness of higher energy density), and then makes blended white light curve WLC1 change over curve WLC2.Now, from Fig. 6 A, the energy density of curve WLC2 in ruddiness frequency domain is higher, and therefore display panel 110 can present the display frame of lower colour temperature.In like manner, utilize same principle to adjust the curve B LC1 of blue light BL, can increase the colour temperature of display frame.
In Fig. 6 B, transverse axis represents that wavelength and Z-axis represent spectral energy density.In the present embodiment, synthesize to adjust the colour temperature of display frame or light source spectrum distribution, power with more discrete wavebands.The figure that ruddiness RL1 and RL2, green glow GL1 and GL2 and blue light BL1 and BL2 present on frequency spectrum is one bell, its respectively corresponding curve be RLC11, RLC21, GLC11, GLC21, BLC11 and BLC21, and all curve RLC11, RLC21, GLC11, GLC21, BLC11 and BLC21 synthesized or the white light curve that is mixed into are curve WLC11.If increase the colour temperature of display frame or light source spectrum distribution, power, also to increase luminous intensity or its LCD penetration of blue light, the curve B LC11 of blue light and BLC21 can change into curve B LC11 ' and BLC21 ' (having the blue light of higher energy density), and then make blended white light curve change over curve WLC11 '.Now, display frame meeting presents the display frame of higher color temperature.If utilize the light source of multiple discrete wavebands or polychromatic source to downgrade the colour temperature of display frame, also reason herewith.
In Fig. 6 C, transverse axis represents that wavelength and Z-axis represent spectral energy density.In the present embodiment, synthesize to adjust the colour temperature of display frame or light source spectrum distribution, power with multiple continuous wave bands.As shown in Figure 6 C, curve WLC31 be one on ruddiness RL, green glow GL and blue light BL frequency spectrum the curve of homogeneous energy density, if downgrade the colour temperature of display frame or light source spectrum distribution, when strong and weak, add the continuous curve of the colour temperature on the low side with high-energy-density, meaning is curve WLC32, and curve WLC31 and WLC32 just can blend or be combined into curve WLC33 thus.From curve map 6C, the energy density of curve WLC33 in ruddiness frequency domain is higher, and therefore display panel 110 can present the display frame of lower colour temperature.If utilize the polychromatic source of multiple continuous wave bands to increase the colour temperature of display frame or light source spectrum distribution, power, also reason herewith.
In another embodiment, please refer to Fig. 7 A and 7B.In Fig. 7 A, illustrate the relation curve of different GTGs and brightness, be called gamma curve (Gamma curve) or gray scale voltage corresponding brightness curve, work as transverse axis with zero to 255 GTG, brightness is as Z-axis.Different gamma curve (Gamma curve) is corresponding different gamma (Gamma) value, and gamma value is higher conventionally, more emphasizes highlights level, represents that the difference of highlights is amplified, and in picture, relatively the contrast meeting of bright area is larger.Therefore the curve that gamma (Gamma) value in Fig. 7 A is 3 can be the brightest, and the curve that gamma (Gamma) value is 1 can be the darkest.
In Fig. 7 B, ruddiness RL, blue light BL, the corresponding gray scale voltage corresponding brightness of green glow GL curve RL1, BL1, GL1 are illustrated, if increase the colour temperature of display frame or light source spectrum distribution, power, also to weaken luminous intensity or its LCD penetration of ruddiness, the gray scale voltage corresponding brightness curve of ruddiness can change into gray scale voltage corresponding brightness curve RL2, makes the channel of ruddiness darker.(it is darker that the RL2 of B7 can become under same GTG than RL1) in like manner, utilizes same principle adjustment blue light BL curve B L1 can increase the colour temperature of display frame.
In the present embodiment, except adjusting gamma curve (Gamma curve) or the gray scale voltage corresponding brightness curve of whole picture, more can distinguish gamma curve (Gamma curve) or this gray scale voltage corresponding brightness curve of the subgraph unit of adjustment region picture, or adjust a digital gamma correspondence table, the corresponding table of adjustment one digital gray level voltage corresponding brightness curve, reach effect of subregion adjustment colour temperature.
Please refer to Fig. 8, Fig. 8 is the process flow diagram of colour temperature or spectrum distribution, strong and weak method of adjustment according to an embodiment of the invention.The color temperature adjusting method of the embodiment of the present invention comprises that step is as follows: first, detecting context (step S810), that is to say, utilizes sensor to detect the context of display device.
Afterwards, obtain colour temperature or spectrum distribution, strong and weak adjustment information (step S820).Also obtain colour temperature or spectrum distribution, strong and weak adjustment information according to the state of context, and colour temperature or spectrum distribution, strong and weak adjustment information comprise temporal information, environmental state information, external light source information, user's contextual information or wherein one of at least, be not limited with the person of enumerating at this, as long as about can adjust colour temperature or spectrum distribution, strong and weak information is all the spiritual place of this exposure.
Finally, judge, adjust colour temperature or spectrum distribution, power (step S830) according to colour temperature or spectrum distribution, strong and weak adjustment information.In other words, the colour temperature of obtaining according to step S820 or spectrum distribution, strong and weak adjustment information are adjusted the colour temperature of display frame of display device or light source spectrum distribution, power, and the color temperature value of colour temperature after adjusting or light source spectrum distribution, power can be set by user or operating system in advance.
In addition, step S810 can also replace to timing unit, counting unit (meaning is clock or timer) and carry out acquisition time information.On the other hand, colour temperature or spectrum distribution, strong and weak method of adjustment can be utilized increases gradually or reduces colour temperature or light source spectrum distribution, power realizes, and this can do appropriate adjustment according to the demand of deviser or user or application.Correlative detail about each step of colour temperature or spectrum distribution, strong and weak method of adjustment describes in detail to Fig. 7 B embodiment at above-mentioned Fig. 1, does not repeat for this reason at this.
Subsidiary one carries, only needs for convenience of description of each step of Fig. 8 embodiment, and the embodiment of the present invention is not using each step order to each other as the restrictive condition of implementing the embodiment of the present invention.
In addition, in the multiple embodiment of the present invention, one of at least, this disclosure separately provides a kind of color temperature adjusting method with colour temperature or spectrum distribution, strong and weak method of adjustment, can be for adjusting the Melatonin of a biosome.That is to say, can be along with time, ambient condition, external light source state, user's situation be adjusted, switching, gradual increase or reduce the colour temperature of a light or adjust a light source spectrum distribution, power.And it is that light source or the multiple coloured light that synthesizes multiple discrete wavebands or one, multiple continuous wave bands is reached that controlled this colour temperature or frequency spectrum divide.Other correlative detail describes in detail in above-mentioned Fig. 1～Fig. 7 B, does not repeat them here.
(possible effect of embodiment)
In sum, the display device that the embodiment of the present invention provides and colour temperature thereof or spectrum distribution, strong and weak method of adjustment at least have following advantages.The embodiment of the present invention is utilized controller acquisition time information, environmental information, external light source information, user's contextual information or its combination (being also colour temperature or spectrum distribution, strong and weak adjustment information), and judges and adjust the corresponding display light of display frame of display device or the colour temperature of light source or spectrum distribution, power according to temporal information, environmental information, external light source information, user's contextual information or its combination and raw display data, look-up table.By this, can be dynamically automatically adjust the corresponding display light of display frame of display device or the colour temperature of light source or light source spectrum distribution, power according to extraneous context or according to user's setting.
In addition, in the multiple embodiment of the present invention, one of at least, the color temperature adjusting method of this disclosure, has colour temperature or spectrum distribution, and at least one mode in strong and weak method of adjustment, can be for adjusting the Melatonin of a biosome.
Finally, one of disclose in multiple embodiment at least in the present invention, in the time reaching predetermined color temperature value, under the effect in naked eyes persistence of vision, very can materially affect not view and admire the corresponding original display picture of raw video data to user.In other words, colour temperature or light source spectrum distribution, strong and weak adjustment not only can excessive influence not viewed and not admired the quality of image frame to user, and, if colour temperature or light source spectrum distribution, strong and weak appropriateness adjustment coordinate people's daily life system, physiological function or duty, for example blueness can slow down the rhythm of the heart, adjustment, gets rid of stress.Cream-coloured, light blue, light gray is conducive to quiet rest and sleep, eliminates tired.Red, orange, yellow can make people's excitement, inspires enthusiasm.White can make hyperpietic's Blood pressure drop, even-tempered and good-humoured; Redness makes human blood voltage rise high, and accelerated breathing contributes to promote people's physical and mental health to promote work efficiency.Furthermore, this disclosure can be used for anti-melancholy, Cure for insomnia, improvement hot-tempered enter the problems such as disease, spirit be not good, therefore, the display device of tool colour temperature or spectrum distribution, strong and weak adjustment can also allow user use for a long time relievedly.
The foregoing is only embodiments of the invention, it is not in order to limit to the scope of the claims of the present invention.
Claims (37)
1. a method of adjustment for colour temperature or spectrum distribution, power, for a display device, is characterized in that, comprising:
Obtain a temporal information, an ambient condition, temperature information, an external light source information, user's contextual information, a display device image information or its combination; And
Combine to judge, adjust the corresponding display light of display frame of this display device or a colour temperature of a light source or a spectrum distribution, power according to this temporal information, this ambient condition, temperature information, this external light source information, this user's contextual information or its.
2. the method for adjustment of colour temperature as claimed in claim 1 or spectrum distribution, power, it is characterized in that, also comprise and use a detecting unit to detect a display device image information, a context of this display device, and obtain this temporal information, this environmental state information, this ambient condition temperature, this external light source information, this user's contextual information or its combination according to this display device image information, this context.
3. the method for adjustment of colour temperature as claimed in claim 1 or spectrum distribution, power, it is characterized in that, also comprise according to this display device image information, carry out computing and judge dynamically to adjust the display frame of this display device, modulation, the colour temperature of adjusting this display frame or spectrum distribution, strong and weak information.
4. colour temperature as claimed in claim 1 or spectrum distribution, strong and weak method of adjustment, is characterized in that, also comprises and obtain this temporal information by a timing unit, a counting unit.
5. the method for adjustment of colour temperature as claimed in claim 1 or spectrum distribution, power, is characterized in that, wherein this temporal information is in order to represent a zero count.
6. the method for adjustment of colour temperature as claimed in claim 1 or spectrum distribution, power, is characterized in that, wherein this temporal information is in order to represent that the current time is daytime, evening, noon, afternoon, morning, dusk, midnight or midnight, season or solar term.
7. the method for adjustment of colour temperature as claimed in claim 6 or spectrum distribution, power, it is characterized in that, wherein in the time of this special time or period, downgrade this colour temperature, make the partially red or inclined to one side tangerine of the display frame of this display device or adjust this spectrum distribution, power to make the partially red or inclined to one side tangerine of the display frame of this display device; In the time of this another time or period, increase this colour temperature, the display frame that makes this display device is partially blue or adjust this spectrum distribution, power makes the display frame of this display device partially blue.
8. the method for adjustment of colour temperature as claimed in claim 6 or spectrum distribution, power, it is characterized in that, wherein, in the time that this current time is daytime, increase this colour temperature, the display frame that makes this display device is partially blue or adjust this spectrum distribution, power makes the display frame of this display device partially blue; In the time that this current time is dusk, evening, midnight, downgrade this colour temperature, make the partially red or inclined to one side tangerine of the display frame of this display device or adjust this spectrum distribution, power to make the partially red or inclined to one side tangerine of the display frame of this display device.
9. the method for adjustment of colour temperature as claimed in claim 1 or spectrum distribution, power, it is characterized in that, also comprise transmittance, the luminous intensity of gray scale voltage corresponding brightness curve, a digital gray level voltage corresponding brightness curve corresponding table this region picture of modulation or this area image by adjusting a gray scale voltage corresponding brightness curve in this display device, a subgraph unit, adjust the colour temperature of overall display frame or image or spectrum distribution, power.
10. the method for adjustment of colour temperature as claimed in claim 1 or spectrum distribution, power, it is characterized in that, also comprise by adjusting in this display device one region picture, an area image, transmittance, the luminous intensity of one gray scale voltage corresponding brightness curve of this region picture, this area image, a subgraph unit gray scale voltage corresponding brightness curve, a digital gray level voltage corresponding brightness curve corresponding table this region picture of modulation or this area image, adjust the colour temperature of this region picture of entirety or this area image or spectrum distribution, power.
The method of adjustment of 11. colour temperatures as claimed in claim 1 or spectrum distribution, power, it is characterized in that, for adjusting the Melatonin of a biosome, comprise, along with time, ambient condition, external light source state, user's situation are adjusted, switching, gradual increase or reduce a colour temperature of a light or adjust a spectrum distribution, power.
12. colour temperatures as described in as arbitrary in claim 1 to 11 or spectrum distribution, strong and weak method of adjustment, is characterized in that, wherein controlled this colour temperature or frequency spectrum be synthesize multiple discrete wavebands or one, the light source of multiple continuous wave bands, multiple coloured light is reached.
13. colour temperatures as described in as arbitrary in claim 1 to 11 or spectrum distribution, strong and weak method of adjustment, it is characterized in that a color temperature value or this spectrum distribution, strong and weak for being set by a user or an operating system in advance of this colour temperature after wherein adjusting according to this temporal information, this environmental state information, this external light source information, this user's contextual information or its combination.
14. colour temperatures as described in as arbitrary in claim 1 to 11 or spectrum distribution, strong and weak method of adjustment, it is characterized in that, wherein adjust this colour temperature or this spectrum distribution, power by controlling at least one of them power, light and shade or open and close time of multiple coloured light light sources of this display device.
The method of adjustment of 15. colour temperatures as claimed in claim 14 or spectrum distribution, power, is characterized in that, wherein controlled this coloured light light source is a white light source.
16. colour temperatures as described in as arbitrary in claim 1 to 11 or spectrum distribution, strong and weak method of adjustment, is characterized in that, wherein this colour temperature along with the time gradual increase or reduce.
The display device of 17. 1 kinds of tool colour temperatures or spectrum distribution, strong and weak method of adjustment, is characterized in that, comprising:
One display panel, has multiple data lines of a first direction and multiple sweep traces of a second direction, and this first direction and this second direction orthogonal;
One data driver, is electrically coupled to this display panel, and this data driver is in order to receive and according to one first control signal, to provide multiple data drive signal to be sent to this display panel via described multiple data lines;
One scan driver, is electrically coupled to this display panel, and this scanner driver is in order to receive and according to one second control signal, to provide multiple scanning drive signal to be sent to this display panel via described multiple sweep traces; And
One controller, be electrically coupled to this data driver and this scanner driver, this controller is in order to receive raw video data and a colour temperature adjustment information, and transmits respectively this first control signal and this second and control signal to its corresponding this data driver and this scanner driver
Wherein a look-up table is searched or compared to this controller according to these raw video data, this colour temperature adjustment information, judge and transmit this and first control signal to this data driver, to adjust corresponding this data drive signal of these raw video data, to adjust the corresponding colour temperature of display frame of this display panel or a spectrum distribution, power;
Wherein, this colour temperature or this light source spectrum distribution are corresponding to this colour temperature adjustment information.
18. display device as claimed in claim 17, is characterized in that, change image pixel unit transmittance in this display panel or a light-emitting component, the spectrum distribution of a luminescence unit, power according to this data drive signal after adjusting.
19. display device as claimed in claim 18, is characterized in that, wherein this light-emitting component, this luminescence unit are a self-emission device.
20. display device as claimed in claim 17, it is characterized in that, have more multiple coloured light light sources, adjust this colour temperature or this spectrum distribution, power by controlling at least one of them power, light and shade or open and close time of multiple coloured light light sources of this display device.
21. display device as claimed in claim 20, is characterized in that, wherein controlled this coloured light light source is a white light source.
22. display device as claimed in claim 17, is characterized in that, wherein this colour temperature along with the time gradual increase or reduce.
23. display device as claimed in claim 17, is characterized in that, wherein controlled this colour temperature or frequency spectrum are reached with the light source or the multiple coloured light that synthesize multiple discrete wavebands or multiple continuous wave bands.
24. display device as claimed in claim 17, is characterized in that, also comprise and use a detecting unit to detect a context of this display device, and adjust this colour temperature or spectrum distribution, strong and weak adjustment information according to this context.
25. display device as claimed in claim 17, is characterized in that, also comprise and use a detecting unit to detect a temperature environment of this display device, and according to this temperature environment carry out modulation, adjust this colour temperature or spectrum distribution, strong and weak information.
26. display device as claimed in claim 17, is characterized in that, wherein according to a color temperature value or a spectrum distribution, strong and weak for being set by a user or an operating system in advance of this colour temperature after this colour temperature or spectrum distribution, strong and weak adjustment information adjustment.
27. display device as claimed in claim 24, is characterized in that, wherein this colour temperature or spectrum distribution, strong and weak adjustment information are a temporal information, an environmental information, an external light source information, user's contextual information or its combination.
28. display device as claimed in claim 27, is characterized in that, also comprise and obtain this temporal information by a timing unit, a counting unit.
29. display device as claimed in claim 27, is characterized in that, wherein this temporal information is in order to represent that the current time is daytime, evening, noon, afternoon, morning, dusk, midnight or midnight, season or solar term.
30. display device as claimed in claim 27, is characterized in that, wherein this temporal information is in order to represent a zero count.
31. display device as claimed in claim 29, it is characterized in that, wherein, in the time of a special time or period, downgrade this colour temperature, make the partially red or inclined to one side tangerine of the display frame of this display device or adjust this spectrum distribution, power to make the partially red or inclined to one side tangerine of the display frame of this display device; In the time of another special time or period, increase this colour temperature, the display frame that makes this display device is partially blue or adjust this spectrum distribution, power makes the display frame of this display device partially blue.
32. display device as claimed in claim 29, is characterized in that, wherein, in the time that this current time is daytime, increase this colour temperature or spectrum distribution, power, make the display frame of this display device partially blue; In the time that this current time is dusk, evening, midnight, downgrade this colour temperature, make the partially red or inclined to one side chrysanthemum of the display frame of this display device.
33. display device as described in as arbitrary in claim 17 to 32, it is characterized in that, also comprise transmittance, the luminous intensity of character used in proper names and in rendering some foreign names Maqu line, a digital gray level voltage corresponding brightness curve corresponding table this region picture of modulation or this area image by adjusting a character used in proper names and in rendering some foreign names Maqu line in this display device, a gray scale voltage corresponding brightness curve, a subgraph unit, adjust the colour temperature of overall display frame or image or spectrum distribution, power.
34. display device as described in as arbitrary in claim 17 to 32, it is characterized in that, also comprise by adjusting in this display device one region picture, an area image, transmittance, the luminous intensity of one gray scale voltage corresponding brightness curve of this region picture, this area image, a subgraph unit gray scale voltage corresponding brightness curve, a digital gray level voltage corresponding brightness curve corresponding table this region picture of modulation or this area image, adjust the colour temperature of this region picture of entirety or this area image or spectrum distribution, power.
35. display device as described in as arbitrary in claim 17 to 32, it is characterized in that, for adjusting the Melatonin of a biosome, comprise, along with time, ambient condition, external light source state, user's situation are adjusted, switching, gradual increase or reduce a colour temperature of a light or adjust a spectrum distribution, power.
36. display device as described in as arbitrary in claim 17 to 32, is characterized in that, wherein controlled this colour temperature or frequency spectrum be synthesize multiple discrete wavebands or one, the light source of multiple continuous wave bands, multiple coloured light is reached.
37. 1 kinds of color temperature adjusting methods, have colour temperature as described in as arbitrary in claim 1～10 or spectrum distribution, strong and weak method of adjustment, for adjusting the Melatonin of a biosome, it is characterized in that, also comprise:
Along with time, ambient condition, external light source state, user's situation are adjusted, switching, gradual increase or reduce a colour temperature of a light or adjust a spectrum distribution, power.
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