CN106847185A

CN106847185A - Display device, the bearing calibration of display device, manufacture method and display methods

Info

Publication number: CN106847185A
Application number: CN201610987309.3A
Authority: CN
Inventors: 土田臣弥
Original assignee: Japan Display Central Inc; Joled Inc
Current assignee: Japan Display Design And Development Contract Society
Priority date: 2015-11-11
Filing date: 2016-11-10
Publication date: 2017-06-13
Anticipated expiration: 2036-11-10
Also published as: JP6744791B2; TW201729177A; KR101964500B1; CN106847185B; KR20170055433A; TWI717414B; JP2017090893A

Abstract

A kind of accuracy that can either ensure correction is provided, bearing calibration, manufacture method, the display methods of the display device, display device of correction data capacity and transmission rate can be reduced again.It is configured in the bearing calibration of rectangular display device (1) with the pixel (400) for carrying out luminous organic EL element (401) according to luminance signal, including：Step (S10) is obtained, the first correction data be made up of multiple correction data compositions corresponding with pixel, for being corrected to luminance signal is obtained ahead of time；Switch process (S30), for the first correction data, the error percentage of correction data composition corresponding with each pixel is traveled into the neighboring pixel of each pixel and is reconstructed (S20), bit reduction is carried out by the correction data composition to each pixel being reconstructed, so as to be converted to the second correction data；And aligning step (S60), luminance signal is corrected using the second correction data.

Description

Display device, the bearing calibration of display device, manufacture method and display methods

Technical field

The application is related to the manufacture method and display device of display device, the bearing calibration of display device, display device Display methods.

Background technology

The display device of the light-emitting component of current drive-type is taken as, has there is known organic el display.It is this to have Machine EL display therefore suffers from concern due to having the advantages that viewing angle characteristic is good and consumption power is few.

In organic el display, typically constitute pixel organic EL element be configured to it is rectangular.Especially, having In the organic el display of source matrix type, due to organic EL element can be made to light untill next scanning (selection), because This, even if dutycycle is raised will not also cause the luminance-reduction of display.In such manner, it is possible to be driven with low-voltage, so that Low-power consumption can be realized.However, have the shortcomings that in the organic el display of active array type it is as follows, i.e., because of driving transistor Or the characteristic of organic EL element is different, even if giving identical luminance signal, the organic EL element in each pixel Brightness also can be different, that is to say, that the uneven of brightness occurs.

Have to the method that the brightness irregularities in organic el display are corrected as conventional, by using depositing in advance Storage correction data in memory is corrected to luminance signal, so as to the heterogeneity of the characteristic to each pixel is mended Repay.

The manufacture method of the organic EL display for example disclosed in patent document 1 is, with containing organic EL Element and the display board of multiple pixels of driving transistor, obtain the brightness-electricity for representing I-E characteristic, each cut zone The brightness-voltage characteristic of properties of flow and each pixel, and each pixel that can obtain the above is obtained for each pixel I-E characteristic turn into and represent the correction data of I-E characteristic.Accordingly, due to being obtained in that the school of pinpoint accuracy Correction data, therefore, it is possible to improve the property of brightness disproportionation one in display panel, and can suppress the deterioration in brightness influenceed by the life-span Heterogeneity.

Prior art literature

Patent document

1 International Publication No. of patent document 2011/118124

However, in the organic EL display disclosed in patent document 1, the correction data of each pixel for calculating in advance (gain and deviation) is stored in the memory of control circuit.Therefore, if thinking not only to ensure the correction data of pinpoint accuracy but also carry The resolution ratio of display board high, then correction data amount can become huge, and the message transmission rates such as luminance signal occur and be oppressed Problem.Especially in small-sized and pinpoint accuracy panel computer terminal etc. is required, above-mentioned problem is then more significantly.

The content of the invention

The present invention is in view of the above-mentioned problems, it is therefore intended that provides a kind of accuracy that can either ensure correction, can subtract again The bearing calibration of the display device, display device of major's correction data capacity and transmission rate, the manufacture method of display device, with And the display methods of display device.

Above-mentioned in order to solve the problems, such as, the bearing calibration of the display device involved by a form of the invention is filled to display The brightness irregularities put are corrected, in the display device, with the pixel for carrying out luminous light-emitting component according to luminance signal It is configured to rectangular, the bearing calibration of the display device includes：Step is obtained, the first correction data is obtained ahead of time, this first Correction data is made up of multiple correction data compositions corresponding with the pixel, for being corrected to the luminance signal；Turn Step is changed, for first correction data, the error percentage of correction data composition corresponding with each pixel this is traveled to The neighboring pixel of each pixel is simultaneously reconstructed, and carrying out bit by the correction data composition to each pixel being reconstructed cuts Subtract, so that first correction data is converted into the second correction data；And aligning step, using second correction number According to being corrected to the luminance signal.

Also, in the manufacture method of the display device involved by a form of the invention, in the display device Rectangular, the manufacture method bag of the display device is configured to the pixel for carrying out luminous light-emitting component according to luminance signal Include：Display board forming step, formation is configured with the display board of multiple pixels；Step is obtained, the first correction number is obtained ahead of time According to first correction data is made up of multiple correction data compositions corresponding with the pixel, for entering to the luminance signal Row correction；Switch process, for first correction data, by the error percentage of correction data composition corresponding with each pixel Travel to the neighboring pixel of each pixel and be reconstructed, entered by the correction data composition to each pixel being reconstructed Row bit is cut down, so that first correction data is converted into the second correction data；And step is preserved, in the conversion step After rapid, second correction data is saved in the memory that the display device has.

Also, in the display methods of the display device involved by a form of the invention, in the display device Rectangular, the display methods bag of the display device is configured to the pixel for carrying out luminous light-emitting component according to luminance signal Include：Aligning step, the second correction data obtained from by obtaining step and switch process, enters to the luminance signal Row correction, in the acquisition step, is obtained ahead of time the first correction data, and first correction data is by corresponding with the pixel more Individual correction data composition is constituted, for being corrected to the luminance signal, in the switch process, for the described first correction Data, travel to the error percentage of correction data composition corresponding with each pixel the neighboring pixel of each pixel and carry out Reconstruct, carries out bit reduction, so that first correction data by the correction data composition to each pixel being reconstructed It is converted into the second correction data；And step display, the luminance signal that will be corrected in the aligning step provides and arrives The pixel, makes the light-emitting component luminous according to the luminance signal, so that the display device is shown.

Also, in the display device involved by a form of the invention, with carrying out luminous hair according to luminance signal The pixel of optical element is configured to rectangular, and the display device possesses：Converter section, for by multiple schools corresponding with the pixel First correction data that correction data composition is constituted, for being corrected to the luminance signal, will be corresponding with each pixel The error percentage of correction data composition travels to the neighboring pixel of each pixel and is reconstructed, and by being reconstructed to this The correction data composition of each pixel carries out bit reduction, so as to first correction data is converted into the second correction data； And correction unit, using second correction data, the luminance signal is corrected.

By the bearing calibration of display device, display device involved in the present invention, the manufacture method of display device and The display methods of display device, can travel to neighboring pixel by the error percentage of correction data composition, so that using reducing The correction data of bit carrys out correcting luminance signal, therefore, the accuracy of correction can either be ensured, correction data appearance can be reduced again Amount and transmission rate.

Brief description of the drawings

Fig. 1 is the block diagram of the composition for showing the display device involved by implementation method 1.

Fig. 2 shows an example of the circuit composition of the pixel involved by implementation method 1 and the company with peripheral circuit Connect.

Fig. 3 is the block diagram of the composition for showing the control unit that the display device involved by implementation method 1 possesses.

Fig. 4 is the block diagram of the composition for showing the control unit that conventional display device possesses.

Fig. 5 is with the correction process of conventional display device and to treatment to the display device involved by implementation method 1 The figure that result is compared.

Fig. 6 is the workflow diagram illustrated to the bearing calibration of the display device involved by implementation method 1.

Fig. 7 is the block diagram for obtaining the measuring system of the first correction data.

Fig. 8 is the block diagram of the composition of the information processor for showing to obtain the second correction data in manufacturing process.

Fig. 9 is the workflow diagram for illustrating the manufacture method of the display device involved by implementation method 2.

Figure 10 is the block diagram of the composition of the control unit for showing to be shown display device using the second correction data.

Figure 11 is the workflow diagram for illustrating the display methods of the display device involved by implementation method 3.

The outward appearance of the panel computer terminal of the display device involved by any one of Figure 12 implementation methods 1 to 3 that have been built-in Figure.

Symbol description

1 display device

2nd, 2A information processors

3 camera heads

10th, 500 control unit

11st, 512 memory

12nd, 12A converter sections

13 correction units

20 data line drive circuits

30 scan line drive circuits

40 display parts

121st, 121A threshold values determination section

122nd, 122A bits reduction portion

131st, 531 corrected luminance signal portion

132 data expanding units

201 operational parts

202 storage parts

203 communication units

400 pixels

401 organic EL elements

402 driving transistors

403 selection transistors

404 keep volume element

411 data wires

412 scan lines

421 power lines

422 common electrodes

Specific embodiment

Display device and its implementation method of bearing calibration are illustrated following with accompanying drawing.Also, will below say The preferred specific example that bright implementation method is in the application.Therefore, numerical value shown in implementation method below, shape Shape, material, inscape, the allocation position of inscape and connection form, order of operation and operation etc. are one Example, purport is not limited the invention.Therefore, for not being documented in the inscape of following implementation method Inscape in the technical scheme of upper concept of the invention is shown, is illustrated as arbitrary inscape.

Also, each figure is ideograph, not rigorous diagram.Also, in each figure for substantially the same structure Identical symbol is assigned into key element, and the explanation of repetition is omitted or simplified.

(implementation method 1)

[compositions of 1.1 display devices]

Fig. 1 is the block diagram of the composition for showing the display device 1 involved by implementation method 1.Display device 1 in the figure has It is standby：Control unit 10, data line drive circuit 20, scan line drive circuit 30 and display part 40.Control unit 10 has memory 11.Also, memory 11 in display device 1, and can also be configured in the outside of control unit 10.

Control unit 10 is controlled to memory 11, data line drive circuit 20 and scan line drive circuit 30.Depositing Reservoir 11, such as at the end of the manufacturing process of display device 1, then preserve correction data (the second school described later after treatment Correction data).

Control unit 10 reads the second correction data for being written to memory 11 in the course of work is shown, according to the second correction Data, are corrected, and export to data line drive circuit 20 to the signal of video signal (luminance signal) from outside input.

Also, control unit 10 is for example in manufacturing process, in correction data (first correction number described later of generation before processing According to) in the case of, for example communicated by with outside information processor, so as to according to the finger of the information processor Show, data line drive circuit 20 and scan line drive circuit 30 are driven.

Also, control unit 10 is carried out for example during manufacturing process to the correction data (the first correction data) of before processing Conversion process, the correction data (the second correction data) after generation treatment, and the correction data after processing is stored in storage Device 11.

Display part 40 possesses and is configured to rectangular multiple pixels 400, according to from outside input to display device 1 shadow As signal (luminance signal), display image.

Fig. 2 show the pixel 400 involved by implementation method 1 circuit constitute an example and with peripheral circuit Connection.Pixel 400 in the figure possesses：Scan line 412, data wire 411, power line 421, selection transistor 403, driving crystal Pipe 402, organic EL element 401, holding volume element 404 and common electrode 422.Also, peripheral circuit possesses data wire drive Dynamic circuit 20 and scan line drive circuit 30.

Scan line drive circuit 30 is connected with scan line 412, conducting to the selection transistor 403 of pixel 400 and non- Conducting is controlled.

Data line drive circuit 20 is connected with data wire 411, and the function having is that output is using the second correction data The luminance signal being corrected, i.e. output data voltage, so as to determine to be flowed into the signal code of driving transistor 402.

The gate terminal of selection transistor 403 is connected with scan line 412, is arrived to the data voltage of data wire 411 is provided The timing of the gate terminal of driving transistor 402 is controlled.

The gate terminal of driving transistor 402 is connected, driving transistor via selection transistor 403 with data wire 411 402 source terminal is connected with the anode terminal of organic EL element 401, drain terminal and the power line 421 of driving transistor 402 Connection.Accordingly, driving transistor 402 will provide the data voltage to gate terminal, be converted to letter corresponding with the data voltage Number electric current, and the signal code that will be changed provided to organic EL element 401.

Organic EL element 401 has the function of light-emitting component, cathode terminal and the common electrode 422 of organic EL element 401 Connection.

Volume element 404 is kept to be connected between the gate terminal of power line 421 and driving transistor 402.Keep holding Even if amount element 404 is for example after selection transistor 403 turns into cut-off state, the grid voltage before being also maintained at this, energy It is enough to continue from driving transistor 402 to provide driving current to organic EL element 401.

And, although without recording in Fig. 1 and Fig. 2, power line 421 is connected with power supply.Also, common electrode 422 are also connected with power supply.

Data voltage from the offer of data line drive circuit 20 is applied to driving transistor via selection transistor 403 402 gate terminal.Driving transistor 402 makes electric current corresponding with the data voltage, between being flowed into source-drain terminal.It is logical Cross the electric current and be flowed into organic EL element 401, so that organic EL element 401 can be carried out with luminosity corresponding with the electric current It is luminous.

Also, the pixel 400 shown in Fig. 2 circuit constitute in, it is also possible to connect each circuit element path it Between insert other circuit elements and wiring etc..

[compositions of 1.2 control units]

Fig. 3 is the block diagram of the composition for showing the control unit 10 that the display device 1 involved by implementation method 1 possesses.Should Control unit 10 shown in figure possesses：Memory 11, converter section 12 and correction unit 13.

Correction data (first correction number of the converter section 12 for the before processing of the correction data composition with each pixel According to), the error percentage that will be produced when pair correction data composition corresponding with each pixel quantifies travels to this each The neighboring pixel of pixel is simultaneously reconstructed, and by the correction data composition of each pixel being reconstructed, is converted into reducing ratio The second special correction data.

Correction unit 13 utilizes the second above-mentioned correction data, and luminance signal is corrected.Luminance signal refers to, in order that The light-emitting component that pixel has lights, and is applied to the electric signal of the pixel.More specifically, in the present embodiment, Luminance signal refers in order that the organic EL element 401 that pixel 400 has lights, and to be applied from data line drive circuit 20 It is added to the data voltage of the grid of driving transistor 402.

Here, being illustrated to the correction data (the first correction data) of before processing.First correction data refers to, such as root According to the signal of video signal for being sent from outside to display device 1, brightness when each pixel 400 of reduction display part 40 carries out luminous is not Uniform data.More specifically, correction data is for example corresponding with pixel 400, is made up of two correction parameters, the two corrections Parameter refers to, gain correcting value and offset correction value.In addition, above-mentioned correction data can not also be corresponding with pixel 400, and It is corresponding with each pixel group, the pixel group is the aggregate of multiple adjacent pixels.

Fig. 4 is the block diagram of the composition for showing the control unit 500 that conventional display device possesses.It is conventional shown in the figure Control unit 500 possess：Memory 512 and corrected luminance signal portion 531.In conventional display device, control unit 500 The first correction data is saved in memory 512 in advance.Also, control unit 500 is changed to signal of video signal, and generates each The luminance signal (luminance signal before correction) of pixel.Corrected luminance signal portion 531 reads the first correction data from memory 512, For luminance signal before above-mentioned correction, the gain correcting value of (or divided by) first correction data is multiplied by, and plus (or subtracting) The offset correction value of the first correction data, so as to be corrected to luminance signal before correction.Control unit 500 will be by derived above Correction after luminance signal, with the timing output that specifies to data line drive circuit.Hereby it is possible to bright in reducing display part Degree is uneven.

The problem occurred in above-mentioned conventional display device is, as the resolution ratio of display part is improved, and will be by Being stored in the correction data amount of memory 512 will become huge, also, the message transmission rate such as luminance signal rises, and forms It is congestion state.Small-sized and pinpoint accuracy panel computer terminal especially is being required, is being not only difficult to ensure the storage of Large Copacity Device, and also result in cost and increase.

In this regard, in the display device 1 involved by present embodiment, luminance signal is not by the first above-mentioned correction number Corrected according to (correction data of before processing), but carried out at light weight by the correction data (the first correction data) to before processing Reason, the correction data (the second correction data) after being processed as obtained from by light weight treatment is corrected.Below in this reality The display device 1 involved by mode is applied, the composition for generating the second correction data from the first correction data is illustrated.

Converter section 12 possesses：Threshold value determination section 121 and bit reduction portion 122, by constitute the first correction data each The error percentage of the correction data composition of pixel, travels to the neighboring pixel of each pixel, to constituting the first correction data The correction data composition of each pixel is reconstructed, and the correction data composition to first correction data being reconstructed carries out bit Cut down, so as to be converted to the second correction data.

Threshold value determination section 121 according to constitute the first correction data multiple correction data compositions distribution come after determining The threshold value that will be used when bit reduction portion 122 carries out bit reduction.

Bit reduction portion 122 is according to the threshold value determined in threshold value determination section 121, each picture to constituting the first correction data The correction data composition of element is quantified, and error percentage now is traveled to the neighboring pixel of each pixel, to constituting the The correction data composition of each pixel of one correction data is reconstructed, to the correction data of first correction data being reconstructed Composition carries out bit reduction, so as to generate the second correction data.More specifically, bit reduction portion 122 is according to above-mentioned threshold value, Correction data composition to constituting each pixel of the first correction data carries out bit reduction, to become with than the correction The correction data composition of the few bit number of the bit number of data component.

Alternatively, it is also possible to be, bit reduction portion 122 is reconstructed according to the threshold value determined in threshold value determination section 121 to above-mentioned The correction data composition of the first correction data carry out binaryzation (" 0 " or " 1 ").In this case, correction data can be made Most lightweight.

As the error percentage of the correction data composition of each pixel by the first correction data is constituted, travel to this each The neighboring pixel of pixel, and to constituting the quantization side that is reconstructed of correction data composition of each pixel of the first correction data Method, for example, can use error-diffusion method.In addition, can be applicable with randomized jitter as above-mentioned method and trembled in order Dynamic dithering waited as representative etc..As the treatment carried out in bit reduction portion 122, by using error-diffusion method, so as to Enough ensure the correction accuracy of luminance signal.

Memory 11 preserves the second correction data, and second correction data is carried out by 12 pairs of the first correction datas of converter section The data changed and generate.Second correction data compares first due to being the data after the first correction data is cut down by bit The capacity of correction data is small.With the raising of the resolution ratio of display part 40, then after lightweight is carried out by converter section 12 is deposited The effect of the capacity reduction of the memory 11 of two correction datas becomes notable.Excessive capacity is not being needed from as recording medium And from the viewpoint of the long-life, for example can be using nonvolatile memories such as flash memories come as memory 11.

Correction unit 13 possesses data expanding unit 132 and corrected luminance signal portion 131.

Data expanding unit 132 is for example made up of the first memory and computing circuit of the volatibility such as DRAM.Data expanding unit 132 read the second correction data from memory 11, and are temporarily stored to first memory.Here, being arranged on the first storage Preserved in the second memory by taking SRAM as an example of (or outside) in device, the threshold data that is determined in threshold value determination section 121 and First correction data be quantized after centrifugal pump at least one party.Computing circuit can utilize the threshold value preserved in second memory At least one party of data and above-mentioned centrifugal pump, the second correction data that will be ensured in first memory is launched into, with than The correction data (centrifugal pump) of the big bit number of the bit number of the second correction data of preservation in memory 11.That is, correction unit 13 Using at least one party of above-mentioned threshold data and above-mentioned centrifugal pump, the second correction data is launched into than the second correction number According to the extra-high data of ratio, and using the correction data after bit compression, corrected luminance signal is carried out to the first correction data.And And, in the control unit 10 involved by present embodiment, data expanding unit 132 is not necessary inscape.

But, because the bit reduction rate of the first correction data in bit reduction portion 122 is higher, then the second correction data Correction accuracy it is lower, therefore, in the case where the bit reduction rate is high, data expanding unit 132 is preferably set.

Corrected luminance signal portion 131 using data expanding unit 132 launch the second correction data, pair with pixel 400 pairs The luminance signal answered is corrected.Shown below carries out the one of the correction process of luminance signal in corrected luminance signal portion 131 Individual example.

Corrected luminance signal portion 131 is among the second correction data (gain correcting value, offset correction value) and correction The corresponding data voltage of preceding luminance signal, be multiplied by (or divided by) gain correcting value, and (or subtracting) is added to the value after the multiplication and division After offset correction value, output to data line drive circuit 20.Accordingly, the accuracy of gamma correction can either be ensured, again can Reduce correction data capacity and transmission rate.

Here, the specific treatment using Fig. 5 to converter section 12 is illustrated.

Fig. 5 shows display device 1 involved by implementation method 1 with the correction process of conventional display device and to it The comparing that result is carried out.Display image shown in the left side of the figure is an example of image, and the situation of display is with identical Brightness makes display part all luminous, is also situation about being shown to display part with the luminance signal without correction.In this regard, Fig. 5 Upper right quarter shown in display image shown by image be, with the control unit of the display device 1 as involved by present embodiment 10 processed after correction after luminance signal, come the image in the case of being shown to display part.Also, the right side of Fig. 5 Display image shown in bottom is believed with the brightness after the correction after being processed by the control unit 500 of conventional display device Number, come the image in the case of being shown to display part.

Also, the display image by the display device 1 involved by present embodiment in Fig. 5 is that converter section 12 is utilized Processed by error diffusion and bit is cut down and processed and the second correction data of generation, and the image being corrected.Described in Fig. 5 The first correction data be, for example, each pixel gain correcting value (correction data composition) be represented as it is rectangular.In this implementation Display device 1 involved by mode, makes the first correction data error diffusion.Following with the error diffusion shown in Fig. 5 Correction data is illustrated.In addition, for convenience of description, in Figure 5, the correction data in error diffusion is with 4 × 4 school Correction data composition is constituted, and correction data composition represented with (row, column).For example, by the correction data composition of upper left with (1, 1) represent, the correction data composition of bottom right represented with (4,4).

First, the Qian Duan Bands for being processed as error diffusion, each correction number of the threshold value determination section 121 according to the first correction data According to the distribution of composition, decision threshold (=1.012), decreasing value (=0.893) and lift-off value (=1.130).Here, Decreasing value and lift-off value are respectively the centrifugal pumps after the first correction data (correction data composition) is quantized.

Then, the correction data composition (1,1) of the first correction data of 122 pairs, bit reduction portion is compared with threshold value (0.999<1.012) the correction data composition (1,1) after, error diffusion is processed replaces with the reduction as above-mentioned centrifugal pump Value (0.893).Then, be set to " 0 " by by the binaryzation data of correction data composition (1,1), to correction data composition (1, 1) quantified.Then, bit reduction portion 122 is for the before processing data (0.999) in correction data composition (1,1) and treatment The difference (error percentage) (0.106) of data (0.893) afterwards, is allocated with the weight for specifying, to by the apportioning cost after distribution (0.046=0.106 × 7/16) is added in the value (1.052=1.0058+ after the correction data composition of the first correction data (1,2) 0.046) (1.052 are compared with threshold value>1.012).According to the result, the correction data composition after error diffusion is processed (1,2), replace with as the lift-off value (1.130) of above-mentioned centrifugal pump.Also, by by the two of correction data composition (1,2) Value data setting is " 1 ", to quantify to correction data composition (1,2).Then, bit reduction portion 122 is directed to correction number According to the difference (- 0.124) of data (1.130) after the before processing data (1.0058) in composition (1,2) and treatment, with the power for specifying It is allocated again, the correction data to the apportioning cost (- 0.054=-0.124 × 7/16) after distribution to be added in the first correction data Value (0.9714) after composition (1,3) is compared (0.9714 with threshold value<1.012).According to as a result, error diffusion is processed Correction data composition (1,3) afterwards, replaces with as the decreasing value (0.893) of above-mentioned centrifugal pump, by by its binaryzation number According to " 0 " is set as, to quantify to correction data composition (1,3).Show in the correction data in the error diffusion of Fig. 5 below Go out, the correction data composition (2,1), (2,2) and (2,3) until correction data composition (1,2) to be diffused as neighboring pixel Stage untill data.It is same below, error diffusion treatment is carried out by all of correction data composition, so that Fig. 5 institutes The second correction data being binarized after (quantization) shown is generated.In addition, the correction data in the error diffusion treatment of Fig. 5 In, correction data composition (1,4), (2,4) and (3,1) to (4,4) represents the value before DIFFUSION TREATMENT.

As previously discussed, bit reduction portion 122 is processed by being applicable error diffusion, so that according in threshold value determination section 121 The threshold value of decision, quantifies to constituting the correction data composition (1,1) to (4,4) of each pixel of the first correction data, will Error percentage now travels to the neighboring pixel of each pixel, the correction number of each pixel to constituting the first correction data It is reconstructed according to composition, the correction data composition to first correction data being reconstructed carries out bit reduction, so as to generate Two correction datas.In above-mentioned example, bit reduction portion 122 according to above-mentioned threshold value, by binaryzation to constituting the first school The correction data composition of each pixel of correction data carries out bit reduction.

Then, data expanding unit 132 reads and is binarized second correction data of (quantization), and is temporarily stored to first and deposits Reservoir, using threshold value (=1.012) and decreasing value (=0.893) and lift-off value (=1.130), by the second correction data exhibition It is the correction data (centrifugal pump) with the big bit number of the bit number than the second correction data to open.More specifically, such as Fig. 5 Shown in second correction data (after expansion), data expanding unit 132, will using threshold value (=1.012) and decreasing value (=0.893) Decreasing value (=0.893) is expanded into as " 0 " of the second correction data composition (1,1).Also, using threshold value (=1.012) with And lift-off value (=1.130), lift-off value (=1.130) will be expanded into as " 1 " of the second correction data composition (1,2).

Although in addition, it is exemplified in the present embodiment by the second correction data bit be reduced to 1 bit (" 0 " or " 1 "), but not it is limited by this.In the case where the second correction data bit is reduced to more than 2 bits, or, number One of centrifugal pump after being quantized merely with the correction data composition of threshold data or the first correction data according to expanding unit 132, exhibition It is the correction data (centrifugal pump) with the big bit number of the bit number than the second correction data to open.

For example, the second correction data be 3 bits in the case of, threshold value be 0.910,0.944,0.978,1.012, 1.045th, 1.079 and 1.113, the first correction data be quantized after centrifugal pump (with the lift-off value in the case of 2 bits with And decreasing value correspondence) it is 0.893 (" 0 "), 0.927 (" 1 "), 0.961 (" 2 "), 0.995 (" 3 "), 1.028 (" 4 "), 1.062 (“5”)、1.096(“6”)、1.130(“7”).In this case, data expanding unit 132 reads and is quantified as " 0 " to " 7 " Each correction data composition of the second correction data, and first memory is temporarily stored to, merely with 7 above-mentioned threshold values, by this Each correction data composition of the second correction data is expanded into bit number (4 bits bigger than the bit number of the second correction data More than) correction data composition (centrifugal pump).For example, the correction data composition (1,1) in the second correction data is the situation of " 2 " Under, the correction data composition (1,1) being unfolded is judged as being the centrifugal pump between threshold value 0.944 and threshold value 0.978,0.961 (" 2 ") are calculated.Also, in the case where the correction data composition (1,2) of the second correction data is for " 0 ", the correction being unfolded Data component (1,2) takes the centrifugal pump smaller than threshold value 0.910, and (threshold is subtracted from 0.910 by 0.910- (0.944-0.910)/2 It is worth the half at interval), and calculate 0.893 (" 0 ").

And can also be that data expanding unit 132 reads each correction of the second correction data for being quantified as " 0 " to " 7 " Data component, and first memory is temporarily stored to, merely with 7 above-mentioned centrifugal pumps, by each school of second correction data Correction data composition expands into the correction data composition with the bit number (more than 4 bits) bigger than the bit number of the second correction data (centrifugal pump).For example, in the case where the correction data composition (1,1) of the second correction data is for " 1 ", the correction data being unfolded Composition (1,1) is calculated as size is deputy 0.927 (" 1 ").Also, in the correction data composition of the second correction data In the case that (1,2) are for " 5 ", the correction data composition (1,2) being unfolded is calculated as 1.062 (" 5 ") that size is the 6th.

And can also be that data expanding unit 132 reads each correction of the second correction data for being quantified as " 0 " to " 7 " Data component, and first memory is temporarily stored to, merely with maximum and minimum value among 7 above-mentioned centrifugal pumps, Each correction data composition of second correction data is expanded into the bit number (4 bigger than the bit number of the second correction data It is more than bit) correction data (centrifugal pump).For example, above-mentioned maximum and above-mentioned minimum value and the second school can be utilized The bit number (3 bit) of correction data, calculates 7 above-mentioned centrifugal pumps.Accordingly, for example the second correction data correction data into In the case of dividing (1,1) for " 1 ", the correction data composition (1,1) being unfolded is calculated as size is deputy 0.927 (“1”).Also, in the case where the correction data composition (1,2) of the second correction data is for " 5 ", the correction data being unfolded into (1,2) are divided to be to calculate 1.062 (" 5 ") for size is the 6th.Alternatively, it is also possible to be, using above-mentioned maximum and Above-mentioned minimum value and the bit number (3 bit) of the second correction data, in the case of calculating 7 above-mentioned centrifugal pumps, except to 7 Individual centrifugal pump is carried out etc. except being applied with array or random array of weight etc. in addition to calculating, can also be.

According to Fig. 5, the brightness as obtained from the control unit 10 and conventional control unit 500 of present embodiment are corrected Display image shown by signal, is compared, it is known that bright with the display image shown by the luminance signal without correction Degree is uneven to be greatly reduced.But, the display image carried out by the control unit 10 of present embodiment with pass through The display image that conventional control unit 500 is carried out, the bit number of correction data is different.That is, by the control of present embodiment The second correction data that portion processed 10 is cut down by bit, Billy is with the data capacity of the first correction data of conventional control unit 500 It is small.Therefore, by the display device 1 involved by present embodiment, even if the pixel count of display part increases, it is also possible to both ensured bright The accuracy of correction is spent, correction data capacity and transmission rate can be reduced again.

In addition, in the display device 1 involved by present embodiment, converter section 12 and correction unit 13 can also be by conducts The IC of integrated circuit or especially realized by LSI (Large Scale Integration).Also, integrated circuit Method can be realized by special circuit or general processor.After LSI manufactures, it is also possible to utilize programmable FPGA (Field Programmable Gate Array：Field programmable gate array) or using can be by the connection of the circuit unit inside LSI And setting rebuild can re-binning processor.And, progress or derivative other technologies with semiconductor technology, If occurring in that the technology of the integrated circuit that can replace LSI, naturally it is also possible to functional block is entered to advance using these technologies Row is integrated.Also, converter section 12 and correction unit 13 can be used as the above-mentioned coded treatment of execution and the journeys of decoding process Sequence realized, the non-transitory recording medium for being also used as have recorded the embodied on computer readable of the program is realized, for example may be used As floppy disk, hard disk, CD-ROM, MO, DVD, DVD-ROM, DVD-RAM, BD (Blu-ray (registration mark) Disc), partly lead Body memory is realized.Also, these programs can be by the transmission mediums such as the recording mediums such as CD-ROM and internet Circulation.

[bearing calibrations of 1.3 display devices]

Then, the bearing calibration to the display device 1 involved by present embodiment is illustrated.

Fig. 6 is the workflow diagram for illustrating the bearing calibration of the display device 1 involved by implementation method 1.In figure 6 Show, the control unit 10 that display device 1 has luminance signal is corrected by the second correction data untill operation. Hereinafter, correcting process is illustrated according to Fig. 6.

First, control unit 10 is obtained ahead of time the first correction data (correction data of before processing), and first correction data is For carrying out the data (S10 that luminous luminance signal is corrected to the brightness for making organic EL element 401 to specify：Walked Suddenly).First correction data (correction data of before processing) as already described, for example by with the corresponding gain of pixel 400 Corrected value and offset correction value the two correction parameters composition.

Here, being illustrated to the preparation method of the first correction parameter.

Fig. 7 is the block diagram for obtaining the measuring system of the first correction data.Measuring system shown in the figure possesses：Letter Breath processing unit 2, camera head 3, display part 40 and control unit 10.

Information processor 2 possesses：Operational part 201, storage part 202, communication unit 203, with to until generating the first school The function that operation untill positive parameter is controlled.As information processor 2, for example, can be applicable personal computer.

Camera head 3 is shot by the control signal from communication unit 203 to display part 40, by the figure being taken As data output to communication unit 203.As camera head 3, for example, can be applicable ccd video camera or luminance meter.

Information processor 2 by the control unit 10 of control signal output to display device 1 and is taken the photograph via communication unit 203 As device 3, measurement data is obtained from control unit 10 and camera head 3, the measurement data is stored in storage part 202, according to The measurement data being stored carries out computing in operational part 201, calculates various characteristic values or parameter.Alternatively, it is also possible to be, control unit 10 use the control circuit for not being built in display device 1.

Specifically, 2 pairs of magnitudes of voltage to measurement pixel of information processor are controlled.Control unit 10 is by above-mentioned electricity Pressure value is applied to measurement pixel, makes the measurement pixel light emission.The brightness value of the luminous measurement pixel of camera head 3 pairs is surveyed Amount.The receiving voltage value of information processor 2 and measurement brightness value.Information processor 2 makes to the magnitude of voltage generation of measurement pixel Change, and same control is carried out, receive different magnitudes of voltage and measurement brightness value corresponding with the magnitude of voltage.At information Reason device 2 is repeated these work, and operational part 201 calculates the voltage-luminance characteristics of each measurement pixel, and by the voltage- Light characteristic is compared with the voltage-luminance characteristics as benchmark, so as to calculate the correction parameter (gain of each measurement pixel Corrected value and offset correction value).

The above-mentioned correction parameter that control unit 10 will be calculated by operational part 201 as the first correction data, via communication unit 203 receive.

Operation more than, control unit 10 is obtained ahead of time the first correction data for being corrected to luminance signal.

Then, control unit 10 is directed to the first correction data, and pair correction data composition corresponding with each pixel quantifies, Error percentage now is traveled to the neighboring pixel of each pixel, and is reconstructed (S20).

Then, control unit 10 carries out bit reduction by the correction data composition of each pixel to being reconstructed, so as to turn It is changed to the second correction data (S30).Step S20 and S30 are the switch process that carry out of converter section 12 of control unit 10.

Then, the second correction data is pre-reserved to the (S40 of memory 11 that display device 1 has by control unit 10：Protect Deposit step).

Then, control unit 10 reads the second correction data from memory 11, in step S30 by the use of the base cut down as bit The threshold value of quasi- value, expands into the correction data (S50) with the bit number bigger than the bit number of the second correction data.

In addition, the above-mentioned expansion treatment in step S50 is not necessary operation.But, due to step S30 in The bit reduction rate of one correction data is higher, then the correction accuracy of the second correction data is lower, therefore, cut down in the bit In the case that rate is high, above-mentioned expansion treatment is preferably carried out.

Then, control unit 10 utilizes the second above-mentioned correction data, and (S60 is corrected to luminance signal：Aligning step).

The bearing calibration of the display device 1 involved by present embodiment more than, is not by the first correction data (correction data of before processing) carrys out correcting luminance signal, but by the second above-mentioned step S20 and S30 processed school Correction data is corrected to luminance signal.Also, preserve the first correction data is generated by conversion in memory 11 Two correction datas.Because the second correction data is the data after the first correction data is cut down by bit, therefore the first correction number of ratio According to capacity it is small.Accordingly, as the resolution ratio of display part 40 increases, the memory of the second correction data after depositing by lightweight The effect of 11 capacity reduction then becomes notable.Therefore, the accuracy of gamma correction can either be ensured, correction number can be reduced again According to capacity and transmission rate.

In addition, in step S20, as the first correction data, correction data composition corresponding with each pixel is passed The method for being multicast to the neighboring pixel of each pixel and being reconstructed, it would however also be possible to employ error-diffusion method.Expand by using error Arching pushing such that it is able to ensure the correction accuracy of luminance signal.In addition, in addition to error-diffusion method, such as can also use Randomized jitter method and ordered dither etc. are the dithering etc. of representative.

And can also be, for the first correction data, by the error of correction data composition corresponding with each pixel When composition travels to the neighboring pixel of each pixel and is reconstructed, according to by constitute the correction data of the first correction data into Point distribution and the threshold value that determines, correction data composition is quantified, and according to error percentage now come to correction Data component is reconstructed.

And can also be, in step S30, for the first correction data, will correction data corresponding with each pixel into The error percentage for dividing travels to the neighboring pixel of each pixel and is reconstructed, to by each pixel obtained from the reconstruct Correction data composition carry out binary conversion treatment, so as to carry out bit reduction.In this case, the second correction data can be made As most lightweight.

(implementation method 2)

Illustrated in implementation method 1, obtain the first correction data, the second correction number is generated from first correction data According to the bearing calibration of the display device 1 until being corrected to luminance signal with second correction data.In this regard, at this In implementation method, to generating the second correction data from the first above-mentioned correction data, it is stored in until by second correction data The manufacture method of the display device 1 untill the memory 11 of display device 1 is illustrated.That is, it is aobvious involved by present embodiment The manufacture method of showing device 1 is a difference in that with the bearing calibration of the display device 1 involved by implementation method 1, implementation method 1 The bearing calibration of involved display device 1 includes the operation to being corrected to luminance signal with the second correction data, And present embodiment is included until the operation being stored in the second correction data untill memory 11.Omitted below and implementation method The explanation that display device 1 and bearing calibration identical involved by 1 are constituted, is illustrated centered on difference.

[composition of the information processor in 2.1 manufacturing processes]

Fig. 8 is the block diagram of the composition for showing to obtain the information processor 2A of the second correction data in manufacturing process. Information processor 2A shown in the figure is the device used in manufacturing process of display device 1, possesses converter section 12A.

Converter section 12A possesses threshold value determination section 121A and bit reduction portion 122A, will constitute each of the first correction data The error percentage of the correction data composition of individual pixel, travels to the neighboring pixel of each pixel, to constituting the first correction data The correction data composition of each pixel be reconstructed, the correction data composition to first correction data being reconstructed compares Spy cuts down, so as to be converted to the second correction data.

Threshold value determination section 121A is determined follow-up according to the distribution of the multiple correction data compositions for constituting the first correction data In the threshold value that bit reduction portion 122A used when bit is cut down.

Bit reduction portion 122A according to the threshold value determined in threshold value determination section 121A, to constitute the first correction data each The correction data composition of pixel is quantified, and error percentage now is traveled to the neighboring pixel of each pixel, to constituting The correction data composition of each pixel of the first correction data is reconstructed, and to the correction of first correction data being reconstructed Data component carries out bit reduction, so as to generate the second correction data.More specifically, bit reduction portion 122A is according to above-mentioned Threshold value, the correction data composition bit of each pixel for constituting the first correction data is reduced to, with than the correction data into Point the small bit number of bit number correction data composition.

And can also be, bit reduction portion 122A according to the threshold value determined in threshold value determination section 121A, to above-mentioned quilt The correction data composition of the first correction data of reconstruct carries out binaryzation (" 0 " or " 1 ").In this case, correction can be made Data turn into most lightweight.

Travel to this each as the error percentage of the correction data composition of each pixel by the first correction data is constituted The neighboring pixel of pixel, and to constituting the quantization side that is reconstructed of correction data composition of each pixel of the first correction data Method, for example, can use error-diffusion method.In addition, can be applicable with randomized jitter as above-mentioned method and trembled in order Dynamic dithering waited as representative etc..As the treatment carried out in bit reduction portion 122A, by using error-diffusion method, so as to Enough ensure the correction accuracy of luminance signal.

In addition, the first correction data can also be obtained as the information processor 2 shown in Fig. 7 of implementation method 1.Now, The information processor 2A involved by information processor 2 and present embodiment involved by implementation method 1 can be identical Device, and can possess the function of both sides.That is, the information processor 2A involved by present embodiment is except converter section 12A In addition, can also possess operational part 201, storage part 202 and communication unit 203.And can also be, the first correction data quilt It is previously attached to information processor 2A.

[manufacture methods of 2.2 display devices]

Fig. 9 is the workflow diagram for illustrating the manufacture method of the display device 1 involved by implementation method 2.Fig. 9 shows Operation be, from the operation of display board that display device 1 has is formed, to the work that the second correction data is stored in memory Sequence.Below according to Fig. 9, manufacturing process is illustrated.

First, the display board (S100 for constituting display device 1 is formed：Display board forming step).Exemplified display below The formation process of plate.For example, on the substrate of the circuit element such as including TFT, it is flat that formation is made up of the organic material of insulating properties Smoothization film, afterwards, anode is formed on the planarization film.Then, hole injection layer is for example formed on anode.Then, in sky Luminescent layer is formed on the implanted layer of cave.Then, electron injecting layer is formed on luminescent layer.After this, electron injection is being formd Negative electrode is formed on the substrate of layer.By these operations, so as to form the organic EL element of the function with light-emitting component.And, Thin film encapsulation layers are formed on negative electrode.Then, in the surface coating sealing resin layer of thin film encapsulation layers.Afterwards, it is being applied Colour filter is formed on sealing resin layer.Then, adhesion coating and transparency carrier are configured on colour filter.In addition, film is close Sealing, sealing resin layer, adhesion coating and transparency carrier are equivalent to protective layer.Finally, from the upper surface side of transparency carrier to Lower section is pressurizeed, while applying heat or energy line, sealing resin layer is solidified, to transparency carrier, adhesion coating and colour filter Piece, thin film encapsulation layers carry out adhesion fixation.By above-mentioned formation process, display board is formd.

Then, information processor 2A is obtained ahead of time the first correction data (correction data of before processing), first correction Data are used to be corrected (S110 to making organic EL element 401 carry out luminous luminance signal with the brightness of regulation：Obtain step). First correction data (correction data of before processing) as already described, for example by with the corresponding gain calibration of pixel 400 Value and the two correction parameters of offset correction value are constituted.For the preparation method of the first correction parameter, can be by embodiment party Information processor 2 illustrated by Fig. 7 of formula 1 is obtained, also, can also for example flow manufactured to same batch aobvious Show the first correction parameter of plate.

Then, information processor 2A is directed to the first correction data, and pair correction data composition corresponding with each pixel enters Row quantifies, and error percentage now is traveled to the neighboring pixel of each pixel, and be reconstructed (S120).

Then, the correction data composition of each pixel by information processor 2A to being reconstructed carries out bit reduction, So as to be converted to the second correction data (S130).Step S120 and S130 are that the converter section 12A of information processor 2A is carried out Switch process.

Then, the second correction data is saved in the memory 11 that display device 1 has by information processor 2A in advance (S140：Preserve step).

The bearing calibration of the display device 1 involved by present embodiment more than, is not (the treatment of the first correction data Preceding correction data) memory 11 is saved to, but the second correction number being processed in above-mentioned step S120 and S130 According to being saved to memory 11.Because the second correction data is the data after the first correction data is cut down by bit, therefore compare The capacity of one correction data is small.Accordingly, as the resolution ratio of display part 40 increases, deposit by light-weighted second correction data The effect that the capacity of memory 11 is lowered will be more notable.Therefore, the accuracy of gamma correction can either be ensured, can be dropped again Low correction data capacity and transmission rate.

In addition, can also use error-diffusion method in step S120, i.e., for the first correction data, will be with each pixel pair The correction data composition answered travels to the neighboring pixel of each pixel, and the method being reconstructed.By using error diffusion Method such that it is able to ensure the correction accuracy of luminance signal.Also, in addition to error-diffusion method, can also for example be applicable with Randomized jitter method and ordered dither etc. are the dithering etc. of representative.

Also, for the first correction data, the error percentage of correction data composition corresponding with each pixel is propagated To each pixel neighboring pixel and when being reconstructed, can be according to the correction data composition by constituting the first correction data Distribution and the threshold value that determines, quantify to correction data composition, and according to error percentage now to correction data into Divide and be reconstructed.

And can also be, in step S130, for the first correction data, will correction data corresponding with each pixel into The error percentage for dividing travels to the neighboring pixel of each pixel, and is reconstructed, the correction number of each pixel to being reconstructed Binary conversion treatment is carried out according to composition, so as to carry out bit reduction.In this case, the second correction data most light weight can be made Change.

Also, information processor 2A can also it is built-in constitute display device 1 control unit 10, in manufacturing process, control Portion processed 10 can obtain the second correction data and be stored in memory 11.

(implementation method 3)

Include in the bearing calibration of the display device 1 of the explanation of implementation method 1, the first correction data is obtained, from first school Correction data generates the second correction data, and luminance signal is corrected with second correction data.In this regard, in the present embodiment The display methods of the display device 1 of explanation includes, the second above-mentioned correction data is read, by second correction data to brightness Signal is corrected, and carries out pixel by luminance signal that this is corrected and show.That is, the display involved by present embodiment The manufacture method of device 1 is a difference in that with the manufacture method of the display device 1 involved by implementation method 2, in implementation method 2 The manufacture method of involved display device 1 includes the operation until being stored in the second correction data untill memory 11, And the operation for including in the present embodiment is, reads the operation of the second correction data being stored and carry out pixel display work Sequence.The explanation that display device 1 and bearing calibration identical with involved by implementation method 1 omitted below is constituted, with difference Illustrated centered on place.

[compositions of 3.1 control units]

Figure 10 is the square frame of the composition of the control unit 10 for showing to be shown display device 1 using the second correction data Figure.Control unit 10 shown in the figure possesses memory 11 and correction unit 13.

Correction unit 13 utilizes the second above-mentioned correction data, and luminance signal is corrected.Luminance signal refers to, in order that The light-emitting component that pixel has lights, and the electric signal applied to the pixel.More specifically, in the present embodiment, it is bright Degree signal refers to, in order that the organic EL element 401 that pixel 400 has lights, and from data line drive circuit 20 to driving The data voltage that the grid of transistor 402 applies.

Here, not being by the first above-mentioned correction data (before processing in the display methods involved by present embodiment Correction data) luminance signal is corrected, but carried out by the correction data (the first correction data) to before processing Light weight treatment and the correction data (the second correction data) after the treatment that obtains is corrected to luminance signal.Due to the second school Correction data is the data after the first correction data is cut down by bit, therefore, the capacity than the first correction data is small.

Accordingly, with display part 40 resolution ratio increase, house it is more light-weighted than the first correction data second correction The capacity minimizing effect of the memory 11 of data then becomes notable.From as recording medium without excessive capacity and long-life From the viewpoint of, as memory 11, for example, can be applicable the nonvolatile memories such as flash memory.

Data expanding unit 132 is for example made up of the first memory and computing circuit of the volatibility such as DRAM.Data expanding unit 132 read the second correction data from memory 11, and are temporarily stored to first memory.Here, being arranged at the first storage (or outside) with SRAM is the second memory for exemplifying in device, preserves the number of threshold values determined by threshold value determination section 121 At least one party of the centrifugal pump according to this and after the first correction data is quantized.Computing circuit can be directed to be ensured by first memory The second correction data, using the threshold data for being stored in second memory and at least one party of above-mentioned centrifugal pump, exhibition Open as the correction data of the bit number big with the bit number than the second correction data being stored in memory 11 is (discrete Value).That is, correction unit 13 utilizes at least one party of above-mentioned threshold data and above-mentioned centrifugal pump, by the second correction data exhibition It is the data more extra-high than the ratio of the second correction data to open, for the first correction data, using the correction data after bit compression come Carry out the correction of luminance signal.Also, in the control unit 10 involved by present embodiment, data expanding unit 132 is not must The inscape for needing.

But, because the bit reduction rate of the first correction data is higher, the correction accuracy of the second correction data is lower, Therefore, in the case where the bit reduction rate is high, data expanding unit 132 is preferably set.

Corrected luminance signal portion 131 using the second correction data for being unfolded in data expanding unit 132, pair with pixel 400 Corresponding luminance signal is corrected.Shown below carries out the correction process of luminance signal in corrected luminance signal portion 131 One example.

Corrected luminance signal portion 131 is among the second correction data (gain correcting value, offset correction value) and before correction The corresponding data voltage of luminance signal is multiplied by (or divided by) gain correcting value, and offset correction value is added with the multiplying value (or subtracting each other), output to data line drive circuit 20.Accordingly, the accuracy of gamma correction can either be ensured, school can be reduced again Correction data capacity and transmission rate.

[display methods of 3.2 display devices]

Figure 11 is the workflow diagram for illustrating the display methods of the display device 1 involved by implementation method 3.In Figure 11 In show, the control unit 10 having from display device 1 reads the operation of the second correction data, and school is carried out to luminance signal Just and carry out the operation that pixel shows.Hereinafter, correcting process is carried out according to Figure 11.

First, control unit 10 reads the second correction data from memory 11, by the use of the threshold of a reference value cut down as bit Value and the first correction data be quantized after centrifugal pump at least one party, expand into than the second correction data bit number The correction data (S250) of big bit number.

Also, it is not necessary operation in the above-mentioned expansion treatment of step S250.But, due to the first correction data Bit reduction rate it is higher, then the correction accuracy of the second correction data is lower, therefore in bit reduction rate situation high Under, preferably carry out above-mentioned expansion treatment.

Then, control unit 10 utilizes the second above-mentioned correction data, and (S260 is corrected to luminance signal：Correction step Suddenly).

Finally, the luminance signal that control unit 10 will be corrected in above-mentioned aligning step is provided to each pixel 400, according to The luminance signal come make organic EL element 401 light so that display device 1 is shown (S270：Step display).

The display methods of the display device 1 involved by present embodiment more than, is not by the first correction data (correction data of before processing) is corrected to luminance signal, but by being cut down by bit after the second correction data come right Luminance signal is corrected.Also, generated by being changed to the first correction data is saved in memory 11 Two correction datas.Because the second correction data is the data after the first correction data is cut down by bit, therefore, than the first correction number According to capacity it is small.Accordingly, with display part 40 resolution ratio increase, then the second correction data after housing by lightweight The capacity reducing effect of memory 11 then becomes notable.Therefore, the accuracy of gamma correction can either be ensured, school can be reduced again Correction data capacity and transmission rate.

(other implementation methods)

It is illustrated above in relation to implementation method 1 to 3, but display device involved in the present invention, display device The display methods of bearing calibration, the manufacture method of display device and display device is not limited by above-mentioned implementation method. Do not depart from the range of purport of the invention, for above-mentioned implementation method perform those skilled in the art it is conceivable that it is each Kind of variation obtained from deformation, the various equipment of built-in display device 1 involved in the present invention are all contained in the present invention.

For example, display device 1, the bearing calibration of display device 1, the system of display device 1 involved by implementation method 1 to 3 The display methods for making method and display device can be suitable for the panel computer terminal shown in Figure 12.By involved by the present invention And display device, the bearing calibration of display device 1, the display methods of the manufacture method of display device 1 and display device, Low cost, fine and the small-sized panel computer terminal for possessing the display for inhibiting brightness irregularities can be realized.

Also, in the above-described embodiment, make display part 40 with the luminance signal according to external image signal generation It is illustrated in case of display image, but is not limited by this.Luminance signal for making pixel light emission not only may be used To be generated by external image signal, and can be by the various signal next life for showing still image or dynamic image Into.

Also, the first correction data is not received to be generated in the manufacture of display device 1 to be limited.Also, the second correction number Limited according to the mode that memory 11 is saved in the manufacture of display device 1 is not received.Even if after the manufacture of display device 1, In display work or in non-display work, the first correction data can be updated, it is possible to according to by the first correction of the renewal Data, the second correction data is updated preservation.

Also, the light-emitting component that each pixel has not by organic EL element limit, or current drive-type or The light-emitting component that the inorganic material of voltage driven type is constituted.

The present invention enables in particular to be efficiently applied to show built-in using the organic EL panel of the display device of organic EL element Show device, and be best suitable for being applied to display device and its school of the display with homogeneous image quality and small-sized fine Correction method.

Claims

1. a kind of bearing calibration of display device, the brightness irregularities to display device are corrected, in the display device, tool There is the pixel for carrying out luminous light-emitting component according to luminance signal to be configured to rectangular,

The bearing calibration of the display device includes：

Step is obtained, the first correction data is obtained ahead of time, first correction data is by multiple correction numbers corresponding with the pixel Constituted according to composition, for being corrected to the luminance signal；

Switch process, for first correction data, the error percentage of correction data composition corresponding with each pixel is passed It is multicast to the neighboring pixel of each pixel and is reconstructed, is carried out by the correction data composition to each pixel being reconstructed Bit is cut down, so that first correction data is converted into the second correction data；And

Aligning step, using second correction data, is corrected to the luminance signal.

2. the bearing calibration of display device as claimed in claim 1,

Further include to preserve step, after the switch process, second correction data is pre-reserved to described aobvious In the memory that showing device has,

In the aligning step, reading is stored in second correction data of the memory, and utilizes second school Correction data, is corrected to the luminance signal.

3. the bearing calibration of display device as claimed in claim 1 or 2,

In the switch process, the multiple correction data composition to constituting first correction data carries out error expansion Dissipate, to the error diffusion after the multiple correction data composition carry out bit reduction so that first correction data is turned It is changed to the second correction data.

4. the bearing calibration of display device as claimed in claim 3,

In the switch process, according to the threshold data for calculating in advance, the multiple of first correction data will be constituted Correction data composition travels to neighboring pixel,

In the aligning step, the centrifugal pump after being quantized using the threshold data and first correction data is extremely A few side, by constitute multiple correction data compositions of second correction data each, expand into than the described second correction The extra-high data of the ratio of data, and second correction data being unfolded using this, are corrected to the luminance signal.

5. the bearing calibration of display device as claimed in claim 1 or 2,

In the switch process, the correction data composition to each pixel carries out binaryzation, so that by first correction number According to second correction data is converted to, the correction data composition of each pixel is, for first correction data, will Correction data composition corresponding with each pixel travels to the neighboring pixel of each pixel and data obtained from being reconstructed Composition.

6. a kind of manufacture method of display device, in the display device, with carrying out luminous light-emitting component according to luminance signal Pixel be configured to it is rectangular,

The manufacture method of the display device includes：

Display board forming step, formation is configured with the display board of multiple pixels；

Step is preserved, after the switch process, second correction data is saved in what the display device had In memory.

7. the manufacture method of display device as claimed in claim 6,

8. the manufacture method of display device as claimed in claims 6 or 7,

9. a kind of display methods of display device, in the display device, with carrying out luminous light-emitting component according to luminance signal Pixel be configured to it is rectangular,

The display methods of the display device includes：

Aligning step, the second correction data obtained from by obtaining step and switch process, to the luminance signal It is corrected, in the acquisition step, the first correction data is obtained ahead of time, first correction data is by corresponding with the pixel Multiple correction data compositions are constituted, for being corrected to the luminance signal, in the switch process, for first school Correction data, the neighboring pixel that the error percentage of correction data composition corresponding with each pixel travels to each pixel is gone forward side by side Line reconstruction, bit reduction is carried out by the correction data composition to each pixel being reconstructed, so that first correction number According to being converted into the second correction data；And

Step display, the luminance signal that will be corrected in the aligning step is provided to the pixel, makes the luminous unit Part is luminous according to the luminance signal, so that the display device is shown.

10. the display methods of display device as claimed in claim 9,

The display methods of 11. display devices as claimed in claim 10,

The display methods of 12. display device as described in any one of claim 9 to 11,

A kind of 13. display devices, in the display device, are matched somebody with somebody with the pixel for carrying out luminous light-emitting component according to luminance signal Be set to it is rectangular,

The display device possesses：

Converter section, for it is being made up of multiple correction data compositions corresponding with the pixel, for entering to the luminance signal First correction data of row correction, each pixel is traveled to by the error percentage of correction data composition corresponding with each pixel Neighboring pixel and be reconstructed, and bit reduction is carried out by the correction data composition to each pixel being reconstructed, from And first correction data is converted into the second correction data；And

Correction unit, using second correction data, is corrected to the luminance signal.

14. display devices as claimed in claim 13,

The display device is also equipped with memory, and the memory preserves second correction data,

The correction unit, reading is stored in second correction data of the memory, and utilizes second correction data, The luminance signal is corrected.

15. display device as described in claim 13 or 14,

The converter section, error diffusion is carried out to first correction data, and to the school of each pixel after the error diffusion Correction data composition carries out bit reduction.

16. display device as described in claim 13 or 14,

The converter section, for first correction data, will correction data composition corresponding with each pixel when being quantized And produce error percentage, travel to the neighboring pixel of each pixel, be reconstructed, and each pixel to being reconstructed school Correction data composition carries out binaryzation.