WO2016035294A1 - 表示装置の補正方法および表示装置の補正装置 - Google Patents
表示装置の補正方法および表示装置の補正装置 Download PDFInfo
- Publication number
- WO2016035294A1 WO2016035294A1 PCT/JP2015/004318 JP2015004318W WO2016035294A1 WO 2016035294 A1 WO2016035294 A1 WO 2016035294A1 JP 2015004318 W JP2015004318 W JP 2015004318W WO 2016035294 A1 WO2016035294 A1 WO 2016035294A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mobility
- display
- amount
- value
- correction
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
- G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/36—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory
- G09G5/363—Graphics controllers
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/043—Compensation electrodes or other additional electrodes in matrix displays related to distortions or compensation signals, e.g. for modifying TFT threshold voltage in column driver
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
Definitions
- the present disclosure relates to a display device correction method and a display device correction device.
- the organic EL display includes an organic EL panel in which a plurality of display pixels are arranged in a matrix.
- the display pixel includes an organic EL element and a driving transistor that supplies a driving current corresponding to the pixel signal to the organic EL element.
- a thin film transistor In an active matrix display device such as an organic EL display, a thin film transistor (TFT: Thin Film Transistor) is used as a drive transistor.
- TFT Thin Film Transistor
- the threshold voltage of the TFT shifts with time due to stress such as a gate-source voltage during energization. Then, the shift of the threshold voltage over time causes fluctuations in the amount of current supplied to the organic EL element, so that it affects the brightness control of the display device and deteriorates the display quality.
- a cumulative value of a pixel signal (hereinafter, abbreviated as “cumulative value” as appropriate) is obtained, and the pixel signal is corrected using the cumulative value.
- the pixel signal is a signal included in a video signal indicating an image for one frame, and includes chromaticity, saturation, gradation value, and the like of one pixel.
- the conventional display device has a problem that the accuracy of correction with respect to the gradation value is not sufficient, and further improvement in display quality is required.
- the present disclosure provides a display device correction method and a display device correction device capable of improving display quality.
- the display device correction method is a display device correction method executed by the control unit in a display device including a display panel having a plurality of display pixels and a control unit that performs display control of the display panel. And obtaining a cumulative value of the pixel signal supplied to the drive transistor that constitutes a processing target pixel of the plurality of display pixels and that supplies a drive current corresponding to the pixel signal to the light emitting element. Then, the shift value of the threshold voltage in the driving transistor is calculated using the accumulated value, the change amount of the mobility is calculated using the shift amount, and the pixel signal is calculated using the change amount of the mobility. A correction parameter for correcting the gradation value is calculated.
- a correction device for a display device is a correction device for a display device including a display panel having a plurality of display pixels and a control unit that performs display control of the display panel, and each of the plurality of display pixels is A light emitting element and a driving transistor that supplies a driving current corresponding to a pixel signal to the light emitting element, and the control unit supplies the driving transistor that constitutes a processing target pixel among the plurality of display pixels.
- a cumulative value of the pixel signal is obtained, a shift amount of a threshold voltage in the driving transistor is calculated using the cumulative value, a change amount of mobility is calculated using the shift amount, and the movement
- the correction parameter for correcting the gradation value of the pixel signal is calculated using the change amount of the degree.
- the display device correction method and the display device correction device according to the present disclosure can improve display quality.
- FIG. 1 is an external view showing an external appearance of an organic EL display according to an embodiment.
- FIG. 2 is a block diagram showing an example of the configuration of the organic EL display in the embodiment.
- FIG. 3 is a block diagram illustrating an example of a configuration of the control unit in the embodiment.
- FIG. 4 is a flowchart illustrating a stress correction processing procedure according to the embodiment.
- FIG. 5 is a graph showing the result of measuring the shift amount of the threshold voltage with respect to the cumulative value for each design value of (V gs ⁇ V th ).
- FIG. 6 is a graph showing the results of measuring the amount of change in mobility with respect to the threshold voltage shift amount.
- FIG. 7 is a graph showing the gain value with respect to the amount of change in mobility.
- Examples of the correction for the pixel signal include (1) correction of the gradation value with respect to the threshold voltage shift, and (2) correction of the gradation value using the charge mobility in the driving transistor.
- the correction of the gradation value with respect to the shift of the threshold voltage is executed in order to prevent a decrease in luminance in the organic EL panel due to the deterioration of the driving transistor due to the voltage applied between the gate and source of the driving transistor. .
- the driving transistor deteriorates with time and the threshold voltage shifts.
- the threshold voltage shifts the amount of drive current flowing between the source and drain of the drive transistor decreases even when the same voltage is applied to the gate. As a result, the amount of drive current supplied to the organic EL element decreases, and the luminance of the organic EL element decreases.
- the relationship between the accumulated value of the pixel signal and the shift amount of the threshold voltage is used. Based on this relationship, the shift amount of the threshold voltage is obtained by calculating the cumulative value of the pixel signal.
- the mobility is obtained from the amount of current flowing in the driving transistor, and the gradation value is corrected using the mobility.
- the present inventors have found that there is a correlation between the above-described threshold voltage shift amount and mobility change amount. By correcting the gradation value using the correlation, it is considered that the gradation value can be corrected with higher accuracy and the display quality can be improved.
- FIG. 1 is an external view showing an external appearance of an organic EL display 10 in the present embodiment.
- FIG. 2 is a block diagram showing an example of the configuration of the organic EL display 10 in the present embodiment.
- the organic EL display 10 includes an organic EL panel 11, a data line driving circuit 12, a scanning line driving circuit 13, a memory 14, and a control unit 20.
- the organic EL panel 11 is an example of a display panel having a plurality of display pixels, and includes a plurality of display pixels P arranged in a matrix, a plurality of scanning lines GL connected to the plurality of display pixels P, and a plurality of display pixels P. And a data line SL.
- the display pixel P includes an organic EL element OEL, a selection transistor T1, a driving transistor T2, and a capacitive element C1.
- the selection transistor T1 switches between selection and non-selection of the display pixel P according to the voltage of the scanning line GL.
- the selection transistor T1 is a thin film transistor, and has a gate terminal connected to the scanning line GL, a source terminal connected to the data line SL, and a drain terminal connected to the node N1.
- the driving transistor T2 supplies a driving current corresponding to the voltage of the data line SL to the organic EL element OEL.
- the drive transistor T2 is a thin film transistor. More specifically, the drive transistor T2 is an oxide semiconductor element.
- the driving transistor T2 is formed using an oxide semiconductor such as TAOS (Transparent Amorphous Oxide Semiconductor, Transparent Amorphous Oxide Semiconductor).
- the drive transistor T2 has a gate terminal connected to the node N1, a source terminal connected to the anode electrode of the organic EL element OEL, and a drain terminal supplied with the voltage VTFT.
- the organic EL element OEL is a light emitting element that emits light according to a driving current.
- the drive current is supplied from the drive transistor T2.
- the anode electrode is connected to the source terminal of the driving transistor T2, and the cathode electrode is grounded.
- the capacitive element C1 is a capacitive element that accumulates charges according to the voltage of the data line SL, and has one end connected to the node N1 and the other end connected to the source terminal of the driving transistor T2.
- the data line driving circuit 12 supplies a voltage corresponding to the correction signal output from the control unit 20 to the plurality of data lines SL.
- the scanning line driving circuit 13 supplies a voltage corresponding to the driving signal output from the control unit 20 to the plurality of scanning lines GL.
- the case where the selection transistor T1 and the driving transistor T2 are N-type TFTs has been described as an example.
- a P-type TFT may be used.
- the capacitive element C1 is connected between the gate and source of the driving transistor T2.
- the memory 14 includes a volatile memory and a nonvolatile memory.
- the volatile memory is, for example, a DRAM (Dynamic Random Access Memory) or an SRAM (Static Random Access Memory).
- the non-volatile memory is, for example, a flash memory.
- the memory 14 stores correction parameters for correcting video signals, calculation results, and the like.
- the control unit 20 is a circuit that controls the display of video on the organic EL panel 11, and is configured using, for example, a TCOM (timing controller).
- the control unit 20 may be configured using a computer system including a microcontroller, a system LSI (Large Scale Integration), or the like.
- the controller 20 performs correction processing for a video signal input from the outside, control of writing processing using the corrected video signal, and the like.
- the video signal is a signal for causing the organic EL panel 11 to display an image composed of one frame.
- the video signal includes pixel signals corresponding to a plurality of pixels constituting the image indicated by the video signal.
- the pixel signal includes chromaticity, saturation, gradation value, and the like.
- the correction process for the video signal includes correction of the gradation value of the pixel signal as described above.
- the correction of the gradation value of the pixel signal is executed to cope with the deterioration of the driving transistor.
- the control unit 20 generates a correction signal in which the gradation value is corrected, and outputs the correction signal to the data line driving circuit 12.
- FIG. 3 is a block diagram showing an example of the configuration of the control unit 20 in the present embodiment. In FIG. 3, some of the components constituting the control unit 20 and the portion related to stress correction are illustrated.
- the control unit 20 includes a circuit for generating a drive signal in addition to the configuration shown in FIG.
- control unit 20 includes an input unit 21 and a stress correction unit 22.
- the control unit 20 corresponds to the correction device according to the present embodiment.
- the input unit 21 receives an externally input video signal and adjusts the image size.
- the input unit 21 sequentially acquires the gradation values of the plurality of display pixels P constituting the organic EL panel 11 and outputs them to the added value calculation unit 23 and the correction unit 29 of the stress correction unit 22.
- the stress correction unit 22 performs stress correction using the accumulated value of stress of the drive transistor T2. As shown in FIG. 3, the stress correction unit 22 includes an addition value calculation unit 23, an addition unit 24, a shift amount calculation unit 25, a correction parameter calculation unit 26, and a correction unit 29.
- the addition value calculation unit 23 calculates the stress value of the drive transistor constituting the display pixel P from the gradation value of the pixel signal.
- the stress value of the driving transistor T2 is a value corresponding to the gradation value of the pixel signal and the accumulated value stored in the memory 14.
- the addition value calculation unit 23 obtains a time-converted value when it is assumed that a constant voltage value is continuously applied as the stress value.
- the adding unit 24 overwrites the memory 14 with a value obtained by adding the stress value to the accumulated value stored in the memory 14 as a new accumulated value.
- the shift amount calculation unit 25 calculates the shift amount of the threshold voltage in the drive transistor T2 using the accumulated value stored in the memory 14.
- the correction parameter calculation unit 26 calculates a correction parameter for correcting the gradation value of the pixel signal.
- the correction unit 29 described later corrects the gradation value using the equation of gradation value ⁇ gain A + offset B.
- the correction parameter calculation unit 26 includes a gain calculation unit 27 and an offset calculation unit 28.
- the gain calculation unit 27 calculates the amount of change in mobility using the shift amount, and calculates the gain A using the mobility.
- the gain calculation unit 27 includes two look-up tables, a ⁇ LUT 27a and a gain LUT 27b. Details of the lookup table will be described later.
- the offset calculation unit 28 calculates the offset B using the shift amount.
- the correction unit 29 corrects the gradation value using the equation of gradation value ⁇ gain A + offset B, and outputs the corrected gradation value as a correction signal.
- FIG. 4 is a flowchart showing a stress correction processing procedure according to the present embodiment.
- the shift amount calculation unit 25 calculates the threshold voltage shift amount ⁇ V th in the drive transistor T2 using the accumulated value stored in the memory 14 (S11).
- the shift amount ⁇ V th of the threshold voltage is obtained from the following equation 1.
- V gs is a gate-source voltage of the driving transistor T2
- V th is a threshold voltage of the driving transistor T2, which is a design value
- FIG. 5 is a graph showing the result of measuring the threshold voltage shift amount ⁇ V th with respect to the cumulative value t ref (indicated as stress time in FIG. 5) for each design value of (V gs ⁇ V th ).
- a 1 , ⁇ , ⁇ , and V offset of Equation 1 are obtained by fitting by the least square method.
- a 1 , ⁇ , ⁇ , and V offset corresponding to the design value are stored in advance in the memory 14 of the organic EL display 10.
- the shift amount calculation unit 25 calculates the threshold voltage shift amount ⁇ V th by substituting the cumulative value t ref into Equation 1.
- the gain calculator 27 of the correction parameter calculator 26 calculates the mobility change amount ⁇ using the threshold shift amount ⁇ V th (S12).
- the change amount ⁇ of mobility can be obtained from the following equation 2.
- the gain calculator 27 calculates the gain A using the mobility change amount ⁇ (S13).
- the gain A is obtained by the following equation 3.
- FIG. 7 is a graph (an example of the gain LUT 27b) showing the value of the gain A with respect to the mobility change amount ⁇ .
- the gain calculation unit 27 calculates the gain A by substituting the change amount ⁇ of mobility into Equation 3.
- the correction unit 29 corrects the gradation value V data of the pixel signal using the gain A and the offset B (S15).
- the corrected gradation value V data ′ is obtained from the following equation (5).
- the gradation value is corrected using the relationship between the threshold voltage shift amount ⁇ V th and the mobility change amount ⁇ .
- the present disclosure can be applied to a display device such as an organic EL display.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Graphics (AREA)
- Control Of El Displays (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Description
画素信号に対する補正には、例えば、(1)閾値電圧のシフトに対する階調値の補正、および、(2)駆動トランジスタにおける電荷の移動度を用いた階調値の補正等がある。
以下、図1~図7を用いて、実施の形態に係る表示装置の補正方法および補正装置を説明する。
図1は、本実施の形態における有機ELディスプレイ10の外観を示す外観図である。図2は、本実施の形態における有機ELディスプレイ10の構成の一例を示すブロック図である。
有機ELパネル11は、複数の表示画素を有する表示パネルの一例であり、マトリクス状に配置された複数の表示画素Pと、複数の表示画素Pに接続される複数の走査線GLと、複数のデータ線SLとを備えている。
制御部20は、有機ELパネル11における映像の表示を制御する回路であり、例えば、TCOM(タイミングコントローラ)等を用いて構成される。なお、制御部20は、マイクロコントローラを含むコンピュータシステム、あるいは、システムLSI(Large Scale Integration:大規模集積回路)等を用いて構成されていても構わない。
図4は、本実施の形態におけるストレス補正の処理手順を示すフローチャートである。
シフト量算出部25は、メモリ14に記憶された累積値を用いて駆動トランジスタT2における閾値電圧のシフト量ΔVthを算出する(S11)。閾値電圧のシフト量ΔVthは、以下の式1より求められる。
補正パラメータ算出部26のゲイン算出部27は、閾値のシフト量ΔVthを用いて、移動度の変化量Δμの算出を行う(S12)。移動度の変化量Δμは、以下の式2より求められる。
ゲイン算出部27は、移動度の変化量Δμを用いてゲインAの算出を行う(S13)。
オフセット算出部28は、閾値のシフト量を用いて、オフセットBの算出を行う(S14)。オフセットBは、定数aを用いて以下の式4より求められる。
補正部29は、ゲインAおよびオフセットBを用いて画素信号の階調値Vdataを補正する(S15)。補正後の階調値Vdata’は、以下の式5より求められる。
本実施の形態の補正装置および補正方法では、閾値電圧のシフト量ΔVthと移動度の変化量Δμとの関係性を利用して、階調値の補正を行う。これにより、本実施の形態の補正装置および補正方法では、より高精度に階調値の補正を行うことが可能になる。
以上のように、本開示における技術の例示として、実施の形態を説明した。そのために、添付図面および詳細な説明を提供した。
11 有機ELパネル
12 データ線駆動回路
13 走査線駆動回路
14 メモリ
20 制御部
21 入力部
22 ストレス補正部
23 加算値算出部
24 加算部
25 シフト量算出部
26 補正パラメータ算出部
27 ゲイン算出部
27a ΔμLUT
27b ゲインLUT
28 オフセット算出部
29 補正部
C1 容量素子
GL 走査線
N1 ノード
OEL 有機EL素子
P 表示画素
SL データ線
T1 選択トランジスタ
T2 駆動トランジスタ
Claims (7)
- 複数の表示画素を有する表示パネルと、
前記表示パネルの表示制御を行う制御部とを備える表示装置において、前記制御部により実行される表示装置の補正方法であって、
前記複数の表示画素のうちの処理対象画素を構成する駆動トランジスタであって、画素信号に応じた駆動電流を発光素子に供給する駆動トランジスタに供給される前記画素信号の累積値を取得し、
前記累積値を用いて前記駆動トランジスタにおける閾値電圧のシフト量の算出を行い、
前記シフト量を用いて移動度の変化量の算出を行い、
前記移動度の変化量を用いて画素信号の階調値を補正するための補正パラメータの算出を行う、
表示装置の補正方法。 - 前記移動度の変化量の算出では、前記シフト量をΔVthとし、前記移動度の変化量をΔμとすると、前記移動度の変化量は、Δμ=C1(ΔVth)γ+C2の関係式を満たすように求められ、
係数C1およびγは、前記シフト量に対する前記移動度の変化量の実測値を用いて予め求められる値である、
請求項1に記載の表示装置の補正方法。 - 前記移動度の変化量の算出では、前記移動度の変化量と前記シフト量との間の線形関係を用いて、前記移動度の変化量の算出を行う、
請求項1または2に記載の表示装置の補正方法。 - 前記補正パラメータの算出では、前記補正パラメータとして、前記階調値に乗算されるゲインと、前記階調値に加算されるオフセット値とが算出され、
前記ゲインは、前記ゲインに対する前記移動度の変化量の実測値から予め求められた値である、
請求項2または3に記載の表示装置の補正方法。 - 前記シフト量の算出では、前記累積値をtとし、前記駆動トランジスタにおけるゲートソース間電圧と閾値電圧との差の設計値をVgs-Vthとすると、ΔVth=A(Vgs-Vth+Voffset)αtβの関係式を満たすように求められ、
係数A、Voffset、αおよびβは、前記累積値に対する前記シフト量の実測値を示すグラフを用いて予め求められた値である、
請求項2~4の何れか1項に記載の表示装置の補正方法。 - 複数の表示画素を有する表示パネルと、
前記表示パネルの表示制御を行う制御部とを備える表示装置の補正装置であって、
前記複数の表示画素の各々は、発光素子と、画素信号に応じた駆動電流を前記発光素子に供給する駆動トランジスタとを有し、
前記制御部は、
前記複数の表示画素のうちの処理対象画素を構成する前記駆動トランジスタに供給される前記画素信号の累積値を取得し、
前記累積値を用いて前記駆動トランジスタにおける閾値電圧のシフト量の算出を行い、
前記シフト量を用いて移動度の変化量の算出を行い、
前記移動度の変化量を用いて画素信号の階調値を補正するための補正パラメータの算出を行う、
表示装置の補正装置。 - 前記駆動トランジスタは、酸化物半導体素子である、
請求項6に記載の表示装置の補正装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/507,394 US10319296B2 (en) | 2014-09-01 | 2015-08-27 | Display device correction method and display device correction device |
JP2016546302A JP6379340B2 (ja) | 2014-09-01 | 2015-08-27 | 表示装置の補正方法および表示装置の補正装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-177494 | 2014-09-01 | ||
JP2014177494 | 2014-09-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016035294A1 true WO2016035294A1 (ja) | 2016-03-10 |
Family
ID=55439378
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/004318 WO2016035294A1 (ja) | 2014-09-01 | 2015-08-27 | 表示装置の補正方法および表示装置の補正装置 |
Country Status (3)
Country | Link |
---|---|
US (1) | US10319296B2 (ja) |
JP (1) | JP6379340B2 (ja) |
WO (1) | WO2016035294A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102481514B1 (ko) * | 2018-08-02 | 2022-12-27 | 삼성디스플레이 주식회사 | 표시 장치 및 이의 열화 보상 방법 |
US11961468B2 (en) * | 2020-09-22 | 2024-04-16 | Samsung Display Co., Ltd. | Multi-pixel collective adjustment for steady state tracking of parameters |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006343763A (ja) * | 2001-09-28 | 2006-12-21 | Semiconductor Energy Lab Co Ltd | 発光装置および電子機器 |
JP2010044299A (ja) * | 2008-08-18 | 2010-02-25 | Fujifilm Corp | 表示装置およびその駆動制御方法 |
JP2010237581A (ja) * | 2009-03-31 | 2010-10-21 | Casio Computer Co Ltd | 画素駆動装置、発光装置及び発光装置の駆動制御方法 |
JP2011034004A (ja) * | 2009-08-05 | 2011-02-17 | Sony Corp | 補正回路および表示装置 |
JP2015108828A (ja) * | 2013-12-03 | 2015-06-11 | エルジー ディスプレイ カンパニー リミテッド | 有機発光表示装置とその画質補償方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4443853B2 (ja) | 2002-04-23 | 2010-03-31 | 株式会社半導体エネルギー研究所 | 発光装置及びそれを用いた電子機器 |
US6911781B2 (en) | 2002-04-23 | 2005-06-28 | Semiconductor Energy Laboratory Co., Ltd. | Light emitting device and production system of the same |
JP5146521B2 (ja) * | 2009-12-28 | 2013-02-20 | カシオ計算機株式会社 | 画素駆動装置、発光装置及びその駆動制御方法、並びに、電子機器 |
CA2692097A1 (en) * | 2010-02-04 | 2011-08-04 | Ignis Innovation Inc. | Extracting correlation curves for light emitting device |
KR101536129B1 (ko) * | 2011-10-04 | 2015-07-14 | 엘지디스플레이 주식회사 | 유기발광 표시장치 |
WO2014021201A1 (ja) * | 2012-08-02 | 2014-02-06 | シャープ株式会社 | 表示装置およびその駆動方法 |
CN105190739B (zh) * | 2013-03-14 | 2017-08-08 | 夏普株式会社 | 显示装置及其驱动方法 |
WO2015151927A1 (ja) * | 2014-03-31 | 2015-10-08 | シャープ株式会社 | 表示装置およびその駆動方法 |
-
2015
- 2015-08-27 WO PCT/JP2015/004318 patent/WO2016035294A1/ja active Application Filing
- 2015-08-27 US US15/507,394 patent/US10319296B2/en not_active Expired - Fee Related
- 2015-08-27 JP JP2016546302A patent/JP6379340B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006343763A (ja) * | 2001-09-28 | 2006-12-21 | Semiconductor Energy Lab Co Ltd | 発光装置および電子機器 |
JP2010044299A (ja) * | 2008-08-18 | 2010-02-25 | Fujifilm Corp | 表示装置およびその駆動制御方法 |
JP2010237581A (ja) * | 2009-03-31 | 2010-10-21 | Casio Computer Co Ltd | 画素駆動装置、発光装置及び発光装置の駆動制御方法 |
JP2011034004A (ja) * | 2009-08-05 | 2011-02-17 | Sony Corp | 補正回路および表示装置 |
JP2015108828A (ja) * | 2013-12-03 | 2015-06-11 | エルジー ディスプレイ カンパニー リミテッド | 有機発光表示装置とその画質補償方法 |
Also Published As
Publication number | Publication date |
---|---|
US10319296B2 (en) | 2019-06-11 |
JP6379340B2 (ja) | 2018-08-29 |
US20170287397A1 (en) | 2017-10-05 |
JPWO2016035294A1 (ja) | 2017-07-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8427513B2 (en) | Display device, display device drive method, and computer program | |
JP5343073B2 (ja) | 表示装置、表示装置の製造方法および制御方法 | |
JP4844602B2 (ja) | 表示装置、表示制御装置、および表示制御方法、並びにプログラム | |
JP4530017B2 (ja) | 表示装置、表示駆動方法 | |
US10276095B2 (en) | Display device and method of driving display device | |
KR102373691B1 (ko) | 유기발광다이오드 표시장치 및 그의 화질 보상방법 | |
US10141020B2 (en) | Display device and drive method for same | |
KR102369759B1 (ko) | 표시 장치, 표시 방법, 및 프로그램 | |
EP4131238A1 (en) | Pixel circuit and driving method therefor, and display apparatus and driving method therefor | |
JP2010134169A (ja) | アクティブマトリクス型表示装置及びそのような表示装置の検査方法並びに製造方法 | |
US9542886B2 (en) | Organic light emitting display device and method for driving the same | |
KR20160069985A (ko) | 표시 장치 및 표시 방법 | |
JP6379340B2 (ja) | 表示装置の補正方法および表示装置の補正装置 | |
US10170039B2 (en) | Method for correcting display device and correction device for display device | |
KR102281008B1 (ko) | 유기 발광 다이오드 표시 장치 | |
KR102245999B1 (ko) | 유기 발광 다이오드 표시 장치 및 그의 센싱 방법 | |
JP2015230483A (ja) | 有機elディスプレイのデータドライバの黒画面電圧の補償方法 | |
US12087211B2 (en) | Electroluminescent display apparatus | |
JP2019039942A (ja) | 表示装置の補正方法及び表示装置の補正装置 | |
JP2007264564A (ja) | 表示装置 | |
JP2016109913A (ja) | 表示装置、表示方法、及びプログラム |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15838262 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016546302 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15507394 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 15838262 Country of ref document: EP Kind code of ref document: A1 |