KR20170038293A - Image processing method, image processing circuit and organic emitting diode display device using the same - Google Patents

Image processing method, image processing circuit and organic emitting diode display device using the same Download PDF

Info

Publication number
KR20170038293A
KR20170038293A KR1020150137445A KR20150137445A KR20170038293A KR 20170038293 A KR20170038293 A KR 20170038293A KR 1020150137445 A KR1020150137445 A KR 1020150137445A KR 20150137445 A KR20150137445 A KR 20150137445A KR 20170038293 A KR20170038293 A KR 20170038293A
Authority
KR
South Korea
Prior art keywords
data
blue
blurring
image
constant
Prior art date
Application number
KR1020150137445A
Other languages
Korean (ko)
Inventor
이돈규
서웅진
Original Assignee
엘지디스플레이 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지디스플레이 주식회사 filed Critical 엘지디스플레이 주식회사
Priority to KR1020150137445A priority Critical patent/KR20170038293A/en
Publication of KR20170038293A publication Critical patent/KR20170038293A/en

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
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G09G5/026—Control of mixing and/or overlay of colours in general
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of El Displays (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The present invention relates to an image processing circuit and an image processing method capable of preventing the deterioration of image quality due to a structured afterimage from being recognized, and an organic light emitting diode display using the same. The image processing circuit according to the present invention calculates a blue constant by detecting the degree of blue data for an input image and performs the blurring processing of the blue data by using a predetermined blurring filter according to the calculated blue constant.

Description

[0001] The present invention relates to an organic light emitting diode (OLED) display device,

The present invention relates to an image processing circuit and an image processing method capable of preventing image quality deterioration due to a stereoscopic afterimage from being recognized, and an organic light emitting diode display using the same.

The image display device that realizes various information on the screen is a core technology of the information communication age and it is becoming thinner, lighter, more portable and higher performance. Accordingly, a flat panel display device capable of reducing weight and volume, which is a disadvantage of a cathode ray tube (CRT), has attracted attention. Examples of such flat panel display devices include a liquid crystal display (LCD) using liquid crystal, an OLED display using an organic light emitting diode (OLED), an electrophoretic display using an electrophoretic particle ; EPD).

Among them, the OLED display uses an OLED element, which is self-emitting by the organic light emitting layer between the anode and the cathode, as each subpixel, and shows excellent image quality such as excellent contrast ratio characteristics. .

However, due to the self-emission characteristics of the OLED device, the OLED display device is deteriorated as the driving time elapses, so that a difference in brightness is caused by a deterioration difference between adjacent unit pixels, and a color difference occurs due to a deterioration difference between sub- do. Such a difference in brightness and color is perceived by the user and is recognized as a permanent afterimage.

Particularly, in a regular image area where a fixed image such as a logo or a menu or an icon of a mobile device is displayed for a long time in a fixed image area, the OLED element is relatively rapidly deteriorated as the OLED element emits for a long time. As a result, there is a problem that a stereoscopic afterimage in which the stereoscopic image is recognized as a residual image is generated.

An object of the present invention is to provide an image processing circuit and an image processing method capable of preventing image quality deterioration due to a stereoscopic afterimage from being recognized, and an organic light emitting diode display using the same.

In order to achieve the above object, an image processing circuit and an image processing method according to the present invention, and an organic light emitting diode display using the same, may be configured to detect a specific gravity of blue data for an input image to calculate a blue constant, The blurring processing of the blue data is performed using a predetermined blurring filter.

In the present invention, blurring processing is performed only for blue data with a relatively low luminance contribution, thereby preventing image quality deterioration due to still image retention from being recognized by changing the still image retention to an atypical after-image. Further, in the present invention, blurring processing of blue data slows deterioration of the blue light emitting element, thereby extending the service life.

1 is a block diagram showing an organic light emitting diode display device according to the present invention.
2 is a view showing each sub-pixel of the display panel shown in Fig.
3 is a block diagram specifically showing the image processing circuit shown in FIG.
4 is a flowchart illustrating an image processing method using the image processing circuit shown in FIG.
5 is a diagram for explaining a Gaussian filter used in the data conversion unit shown in FIG.
6 is a diagram showing a blurring mask used in the data conversion unit shown in Fig.
FIG. 7 is a diagram for explaining a blurring processing method using the blurring mask shown in FIG. 6; FIG.
8 is a diagram for explaining a comparison between an image blurred through an image processing circuit according to the present invention and an input image.
9 is a block diagram showing a second embodiment of the image processing circuit according to the present invention.
FIG. 10 is a diagram for explaining an image processing method using the image processing circuit shown in FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing an OLED display device having an image processing circuit according to the present invention.

1 includes a display panel 100, a panel driver including a data driver 108 and a scan driver 106 for driving the display panel 100, a timing controller (not shown) for controlling the panel driver, 120).

The scan driver 106 sequentially drives the scan lines SL of the display panel 100 in response to a scan control signal from the timing controller 120. The scan driver 106 supplies a scan pulse in a high state for each scan period of each scan line SL and a scan pulse in a low state during a remaining period in which the scan scan line SL is driven.

The data driver 108 converts the digital data from the timing controller 120 into an analog data voltage in response to the data control signal DCS from the timing controller 120 so that data Line DL.

The timing controller 120 is connected to the data driver 108 (not shown) using a plurality of synchronizing signals input from a host computer (not shown), that is, a vertical synchronizing signal Vsync, a horizontal synchronizing signal Hsync, A data control signal DCS for controlling the driving timing of the scan driver 106 and a scan control signal SCS for controlling the driving timing of the scan driver 106 are generated. The timing controller 120 outputs the generated data control signal DCS and the scan control signal SCS to the data driver 108 and the scan driver 106, respectively. The data control signal DCS includes a source start pulse and a source sampling clock for controlling the latch of the data signal, a polarity control signal for controlling the polarity of the data signal, a source output enable signal for controlling the output period of the data signal, . The scan control signal SCS includes a scan start pulse and a scan shift clock for controlling scanning of a scan signal, and a scan output enable signal for controlling an output period of the scan signal.

The image processing circuit 130 of the timing controller 120 processes the image data input from the host system and supplies the image data to the data driver 108. The image processing circuit 130 selectively blurs the blue data B having the lower contribution of the luminance (Y) to the red (R) and green (G) data as shown in Equation (1) do.

Figure pat00001

The image processing circuit 120 is included in the timing controller 130. Alternatively, the image processing circuit 120 may be located between the timing controller 130 and the data driver 108, or may be located at the input end of the timing controller 130 It is possible. A detailed description of the image processing circuit 120 will be described later.

The display panel 100 displays an image through unit pixels arranged in a matrix form. The unit pixel is composed of red (R), green (G) and blue (B) sub pixels or red (R), green (G), blue (B) and white (W) sub pixels. Each sub-pixel has a pixel driving circuit and an organic light emitting element OLED, as shown in Fig.

The pixel driving circuit supplies a data current corresponding to a data signal supplied to the data line DL to the organic light emitting diode OLED in response to a scan signal supplied to the scan line SL. To this end, the pixel driver circuit includes a switching transistor Tr_S, a driving transistor Tr_D, and a capacitor C. The switching transistor Tr_S is switched according to a scan signal supplied to the scan line SL to supply a data signal to the data line DL to the drive transistor Tr_D. The driving transistor Tr_D is switched in accordance with the data signal supplied from the switching transistor Tr_S to control the current flowing from the high potential power supply VDD to the organic light emitting element OLED. The capacitor C is connected between the scan terminal of the drive transistor Tr_D and the low potential power supply VSS and stores a voltage corresponding to the data signal supplied to the scan terminal of the drive transistor Tr_S, (Tr_D) is kept constant for one frame.

The organic light emitting element OLED is electrically connected between the source terminal of the driving transistor Tr_D and the low potential power supply VSS and emits light by a current corresponding to the data signal supplied from the driving transistor Tr_D. To this end, the organic light emitting device OLED includes an anode electrode connected to the source terminal of the driving transistor Tr_D, an organic layer formed on the anode electrode, and a cathode electrode formed on the organic layer. Here, the organic layer may include a hole injection layer / a hole transporting layer / a light emitting layer / an electron transporting layer / an electron injection layer.

Thus, each of the red (R), green (G) and blue (B) sub-pixels is driven by the switching of the driving transistor Tr_D in accordance with the data signal to flow from the high potential power source VDD to the organic light emitting element OLED A predetermined color is expressed by controlling the magnitude of the current to cause the light emitting layer of the organic light emitting element OLED to emit light.

Among these red (R), green (G) and blue (B) sub-pixels, the luminous efficiency of the blue sub-pixel is the lowest. Accordingly, since the blue sub-pixel is required to be driven more than the other sub-pixels in order to achieve the same luminance, the lifetime of the blue sub-pixel is shortened. In this case, when a white image is implemented using red, green, and blue sub-pixels, an afterimage having a non-white color and a yellow color is generated. As such, the blue sub-pixel has the shortest lifetime and has the greatest influence on the afterimage. In order to solve this afterimage, in the present invention, the gray value of the blue data having a low contribution to the brightness value for determining the sharpness of the image is lowered and blurring processing is performed, so that deterioration of the blue sub- It is possible to change the atypical afterimage to the stereoscopic residual image.

Accordingly, in the present invention, blue (B) data is blurred through the image processing method shown in FIG. 4 using the image processing circuit 130 shown in FIG. 3 includes a data classifying unit 132, a data analyzing unit 134, a data converting unit 136, and a data synthesizing unit 138. The data classifying unit 132, the data analyzing unit 134,

The data classifying unit 132 classifies the red (R), green (G), and blue (B) data of one frame input from the external system body or the graphics card by color (S11 and S12) (R), green (G), and blue data (B) to the data analysis unit 134.

The data analyzing unit 134 calculates a blue constant CB through Equation 2 in consideration of the specific gravity occupied by the blue (B) data among red (R), green (G) and blue (B) (Step S13).

Figure pat00002

In Equation (2), n denotes the number of non-blue sub-pixels that are not blue sub-pixels per unit pixel. For example, when each unit pixel is composed of red, green, and blue sub-pixels, n is 2, and n is 3 when each unit pixel is composed of red, green, blue, and white sub-pixels.

The data converter 136 converts the blue (B) data using a predetermined blurring filter according to the calculated blue constant (CB) value. That is, when the blue constant CB exceeds the threshold value? (Step S14), the data conversion unit 136 outputs the blue data directly to the data synthesis unit 138 without correction and the blue constant CB, (Step S14), the blurring process is performed on the blue data using the blurring filter (step S15), and the blue data is output to the data synthesizing unit 138. [

Specifically, when the blue constant CB exceeds the threshold value?, Since the image data of one frame is mostly composed of blue (B) data, the blue (B) data is outputted as it is without correction. That is, when the image data of one frame is mostly composed of blue data, if all the data are corrected through the blurring filter, the edge area is lost by blurring filtering and becomes blurred. Therefore, when the image data of one frame is mostly composed of blue data, the blue data is directly output without correction and the sharpness is maintained.

The blurring filter is applied only to the blue (B) data among the red (R), green (G), and blue (B) data of one frame when the blue constant CB is below the threshold value. At this time, the blurring coefficient of the blurring filter changes depending on the blue constant CB. For example, the blurring filter uses a Gaussian filter that generates a blurring mask (BM) using a Gaussian function such as Equation (3). In this case, the mask size (N x N) and standard deviation (?) Of the Gaussian filter are set to be in inverse proportion to the blue constant CB.

Figure pat00003

As the standard deviation (?) Described in Equation (3) is larger, the Gaussian function G (x, y) spreads more widely as shown in Fig. 5, and a larger blurring effect can be obtained. ) Is larger, the mask size (NxN) also becomes larger. For example, when the blue constant CB is a predetermined first value, the Gaussian filter blurring the blue data using a 3 × 3 blurring mask BM as shown in FIG. 6, and the blue constant ( CB) is smaller than the first value, blurring processing of the blue data is performed using the 5 × 5 blurring mask (BM). In each blurring mask BM, a weight for blue data is set, and the total sum of weights of the blurring mask BM is set to one. The weights are set so as to gradually decrease from the center cell to the outer cell of the blurring mask BM or to have the same value for each cell. On the other hand, the blurring mask BM shown in Fig. 6 is an embodiment, but it is not limited thereto.

The blue data of one frame is converted by repeatedly performing the blurring process on the blue data while shifting the blurring mask BM on a pixel-by-pixel basis. That is, as shown in FIG. 7, the data conversion unit 136 converts the blurring mask BM having N × N weight values (M (0,0) to M (2,2)) into N × N pixels To the blue data B (i-1, j-1) to B (i + 1, j + 1) of the blue data. As described above, when the blue constant CB is equal to or less than the threshold value, the brightness of the edge portion can be reduced by the blurring process for the blue data, so that the afterimage due to the blue light emitting element can be changed to the atypical afterimage.

The data synthesizer 138 outputs the red (R) and green (G) data from the data analyzer 134 and the blue data B 'blurred from the data converter 136 to the unit pixel (S16 step) so as to be suitable for the arrangement structure of the data driver 108 and outputs it to the data driver 108. [

As described above, according to the present invention, blurring processing is performed only for blue data with a relatively low luminance contribution, thereby preventing the image quality deterioration due to the afterimage due to the afterimage by the blue light emitting element from being changed to the atypical afterimage, can do. In addition, since the present invention does not perform blurring processing on red and green data having a relatively high luminance contribution degree, as compared with the case of blurring all the red, green, and blue data as shown in FIG. 8, Sharpness) can be maintained.

FIG. 9 is a block diagram showing an image processing circuit according to a second embodiment of the present invention, and FIG. 10 is a flowchart for explaining an image processing method using the image processing circuit shown in FIG.

The image processing circuit 130 shown in FIG. 9 is similar to the image processing circuit 130 shown in FIG. 3 except that only the blue data supplied to the regular image area is selectively blurred after the presence or absence of the normal image area as shown in FIG. And has the same components as the illustrated image processing circuit. Accordingly, detailed description of the same constituent elements will be omitted.

The stereoscopic image detecting unit 140 analyzes the input image and determines whether or not the stereoscopic image region exists in the input image. That is, the regular image detecting unit 140 compares the red (R), green (G), and blue (B) data between adjacent frames for a plurality of frames to form an area for holding the same or similar data Image area. In addition, by inputting the coordinate information for the stereoscopic image region from the outside, it is possible to detect the stereoscopic image region corresponding to the coordinate information.

If the stereoscopic image region does not exist, the stereoscopic image detection unit 140 directly outputs the input data to the data synthesis unit 138. If the stereoscopic image region exists, the stereoscopic image detecting unit 140 outputs the input data of the stereoscopic image region to the data classifying unit 132, and outputs the input data of the remaining region except for the stereoscopic image region to the data synthesizing unit 138 do. Here, as shown in FIG. 10, the stereoscopic image area means an area where a stereoscopic image is displayed at the same position for a long time, such as a logo, a long time fixed caption, a menu or an icon of a mobile device, and the like.

The data classifying unit 132 classifies the red (R), green (G), and blue (B) data of the regular image region by color and outputs classified red (R), green And supplies it to the data analysis unit 134.

The data analyzing unit 134 calculates the blue constant CB through Equation 2 in consideration of the specific gravity occupied by the blue data among the red (R), green (G), and blue (B) data in the fixed image region.

When the blue constant CB exceeds the threshold value alpha, the data converter 136 outputs the blue (B) data of the still image area to the data synthesizer 138 without correction and the blue constant B (CB) Blurring processing of the blue (B) data of the regular image region using the blurring filter, and outputs the blurring processing to the data synthesizing unit 138.

The data synthesizer 138 outputs the red (R) and green (G) data from the data analyzer 134 and the blue data B 'blurred from the data converter 136 to the unit pixel And outputs the data to the data driver 108. [0064]

As described above, according to the present invention, blurring processing is performed only on blue (B) data of a regular image region, thereby changing the after-image still image caused by the blue light emitting element to an atypical afterimage to improve the deterioration of the perceived image quality. In addition, since the present invention does not perform blurring processing on red and green data with relatively high luminance contribution, sharpness (sharpness) can be maintained.

The foregoing description is merely illustrative of the present invention, and various modifications may be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the embodiments disclosed in the specification of the present invention are not intended to limit the present invention. The scope of the present invention should be construed according to the following claims, and all the techniques within the scope of equivalents should be construed as being included in the scope of the present invention.

130: image processing circuit 132:
134: Data analysis unit 136: Data conversion unit
138: data synthesizer 140: stereoscopic image detector

Claims (11)

An image processing circuit;
A display panel for displaying an image supplied from the image processing circuit;
And a panel driver for driving the display panel so that an image supplied from the image processing circuit is displayed on the display panel,
The image processing circuit
A data classifying unit for classifying at least three color data of each pixel of the input image by color;
A data analyzer for calculating a blue constant by detecting a specific gravity of blue data for the input image;
A data converter for blurring the blue data using a predetermined blurring filter according to the blue constant;
And a data synthesizing unit for aligning and outputting the blurred blue data and at least two remaining color data classified by the data classification unit. The method according to claim 1,
And a timing controller for controlling a driving timing of the panel driving unit,
Wherein the image processing circuit is embedded in the timing controller, or is positioned between the timing controller and the panel driving unit, or is located at a front end of the timing controller. A data classifying unit for classifying at least three color data of each pixel of the input image by color;
A data analyzer for calculating a number of colors by detecting a specific gravity of one of the at least three color data for the input image;
A data conversion unit for blurring any one of the at least three color data using a predetermined blurring filter according to the color constant;
And a data synthesizing unit for aligning and outputting the blurring-processed color data and the remaining color data classified by the data classifying unit. The method of claim 3,
The data analysis unit
Calculating a blue constant by detecting a specific gravity of blue data for the input image,
The data conversion unit
And outputting the blue data to the data combining unit without blurring if the blue constant exceeds a threshold value,
And blurring the blue data when the blue constant is less than or equal to a threshold value, and outputting the blurred blue data to the data combining unit. 5. The method of claim 4,
The data conversion unit
And sets the size of the mask of the blurring filter and the standard deviation of the blurring filter so as to be in inverse proportion to the blue constant. The method of claim 3,
Further comprising: a stereoscopic image detecting unit for analyzing data of the input image and detecting a stereoscopic image area. The method according to claim 6,
The data analysis unit
A blue color constant is calculated by detecting a specific gravity of blue data in the still image area,
The data conversion unit
And outputs the blue data of the still image area to the data synthesizer without blurring if the blue constant exceeds the threshold,
And blurring the blue data of the still image area and outputting the blurring data to the data combining part when the blue constant is less than or equal to a threshold value. Classifying the color data included in each pixel of the input image by color;
Calculating a blue constant by detecting a specific gravity of blue data for the input image;
Blurring the blue data using a predetermined blurring filter according to the blue constant;
And arranging and outputting the blurred blue data and the remaining color data classified by the data classification unit. 9. The method of claim 8,
The blurring of the blue data
And outputting the blue data without blurring if the blue constant exceeds a threshold, and blurring the blue data when the blue constant is below a threshold. 9. The method of claim 8,
And analyzing data of the input image to detect a regular image region. 9. The method of claim 8,
The step of calculating the blue constant
Calculating a blue constant by detecting a specific gravity of blue data for an image of the still image region,
The blurring of the blue data
And outputs the blue data for the image of the regular image region without blurring processing when the blue constant exceeds the threshold value and blurring the blue data of the regular image region when the blue constant is below the threshold value Image processing method.
KR1020150137445A 2015-09-30 2015-09-30 Image processing method, image processing circuit and organic emitting diode display device using the same KR20170038293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150137445A KR20170038293A (en) 2015-09-30 2015-09-30 Image processing method, image processing circuit and organic emitting diode display device using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150137445A KR20170038293A (en) 2015-09-30 2015-09-30 Image processing method, image processing circuit and organic emitting diode display device using the same

Publications (1)

Publication Number Publication Date
KR20170038293A true KR20170038293A (en) 2017-04-07

Family

ID=58583654

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150137445A KR20170038293A (en) 2015-09-30 2015-09-30 Image processing method, image processing circuit and organic emitting diode display device using the same

Country Status (1)

Country Link
KR (1) KR20170038293A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3618044A1 (en) * 2018-08-31 2020-03-04 Samsung Display Co., Ltd. Afterimage compensator, display device having the same, and method for driving display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3618044A1 (en) * 2018-08-31 2020-03-04 Samsung Display Co., Ltd. Afterimage compensator, display device having the same, and method for driving display device
US11922600B2 (en) 2018-08-31 2024-03-05 Samsung Display Co., Ltd. Afterimage compensator, display device having the same, and method for driving display device

Similar Documents

Publication Publication Date Title
KR101947125B1 (en) Timing controller, driving method thereof, and display device using the same
EP3098803B1 (en) Image processing method, image processing circuit, and organic light emitting diode display device using the same
KR101857809B1 (en) A method for converting rgb to rgbw and display device using the same
US9324283B2 (en) Display device, driving method of display device, and electronic apparatus
KR20160078748A (en) Display device and driving method thereof
KR102390473B1 (en) Display panel and display device having the same
KR102041968B1 (en) Timing controller, driving method thereof, and display device using the same
KR20150015281A (en) Apparatus for converting data and display apparatus using the same
KR101870677B1 (en) Organic light emitting display apparatus and method for driving the same
KR101191532B1 (en) Data display method and apparatus
KR102148207B1 (en) Apparatus for compensating degradation and display device including the same
KR102239895B1 (en) Method and data converter for upscailing of input display data
JP6021339B2 (en) Display device and control method thereof
KR20140070795A (en) Timing controller, driving method thereof, and display device using the same
KR102106556B1 (en) Timing controller, driving method thereof, and display device using the same
KR20170003856A (en) Display device, display panel and timing controller thereof
WO2019184569A1 (en) Determination method for data processing sequence, and display device and display method thereof
KR20170038293A (en) Image processing method, image processing circuit and organic emitting diode display device using the same
KR101964457B1 (en) Organic light emitting diode display device and method for driving the same
KR20160092335A (en) Method and device for image processing and display device using the method thereof
KR101922072B1 (en) Method and apparatus for converting data, method and apparatus for driving of flat panel display device
US9466236B2 (en) Dithering to avoid pixel value conversion errors
CN111583853A (en) Luminance compensation device, luminance compensation method, and display device
US20100309099A1 (en) Display device and driving method thereof
KR102102906B1 (en) Method for driving Flat Display Device having RBGB pixel structure