Display device and electronic device

Abstract

The invention relates to a display device and an electronic device. The display device includes: a display unit including a plurality of pixels; a degradation compensator configured to generate input degradation data by reflecting a weight in the input data, and configured to generate correction data using accumulated degradation data generated by accumulating the input degradation data; and a timing controller configured to generate output data by reflecting the correction data to the input data, in which the weight includes an efficiency weight, and the efficiency weight corresponds to an efficiency of a corresponding one of the plurality of pixels corresponding to each of the plurality of gray levels.

Description

[0001] Cross Reference to Related Applications

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2024-0094834, filed on July 18, 2024, in the Korean Intellectual Property Office, the disclosure of which is incorporated herein in its entirety by reference. TECHNICAL FIELD

[0003] Aspects of some embodiments of the present disclosure relate to a display device and an electronic device. BACKGROUND

[0004] A display device includes a data driver and a display panel, and the display panel includes pixels. The data driver provides a data signal to the pixels through data lines. Each of the pixels includes a driving transistor and a light emitting element. The driving transistor controls an amount of current flowing through the pixel based on the data signal, and the light emitting element emits light having a luminance corresponding to the amount of current.

[0005] As the driving time of the display panel increases, the light emitting element and the driving transistor can deteriorate. As an example, as the driving time increases, the light emitting element can produce light having a low luminance in response to the same data signal. As an example, as the driving time increases, a threshold voltage of the driving transistor can vary (or shift). Due to the deterioration of the light emitting element and the driving transistor, the pixel can emit light having a luminance different from a desired luminance.

[0006] A method of compensating for the deterioration of the light emitting element and the driving transistor by accumulating data has been proposed so that the pixel emits light having a desired luminance. However, since there is no reflection of efficiency corresponding to a gray scale of the data, accurate compensation can not be achieved.

[0007] The above information disclosed in this Background section is only for enhancement of understanding of the background of the disclosure, and therefore, it can not necessarily constitute the prior art. SUMMARY

[0008] Aspects of some embodiments of the present disclosure include a display device capable of relatively improving accuracy of deterioration compensation, a method of driving a display device, and an electronic device.

[0009] A display apparatus according to some embodiments of the present application can include a display unit including a plurality of pixels, a degradation compensator generating input degradation data by reflecting a weight in input data, and generating correction data using accumulated degradation data generated by accumulating the input degradation data, and a timing controller generating output data by reflecting the correction data to the input data. The weight can include an efficiency weight, and the efficiency weight can correspond to an efficiency of a corresponding one of the plurality of pixels corresponding to each of a plurality of gray scales.

[0010] According to some embodiments, the efficiency weight can be set such that a difference in driving current flowing through each of the plurality of pixels corresponding to each of the plurality of gray scales is reflected in the input degradation data.

[0011] According to some embodiments, the efficiency weight can be stored in the degradation compensator in units of pixels corresponding to each of the plurality of gray scales.

[0012] According to some embodiments, the efficiency weight can be stored in the degradation compensator in units of blocks corresponding to each of the plurality of gray scales, and each of the blocks can include at least two corresponding pixels among the plurality of pixels.

[0013] According to some embodiments, the efficiency weight can be stored in the degradation compensator corresponding to each of the plurality of gray scales by averaging the efficiency weight of each of the plurality of pixels.

[0014] According to some embodiments, the weight can further include a position weight corresponding to each of a plurality of positions of the plurality of pixels and a temperature weight corresponding to a temperature.

[0015] According to some embodiments, the display apparatus can further include a memory in which the accumulated degradation data is stored.

[0016] According to some embodiments, the degradation compensator can include an efficiency look-up table in which the efficiency weight is stored, a position look-up table in which the position weight is stored, a temperature look-up table in which the temperature weight is stored, a degradation accumulator generating the input degradation data by reflecting the efficiency weight, the position weight, and the temperature weight to the input data, accumulating the input degradation data, and storing the accumulated degradation data in the memory, and a data generator generating the correction data using the accumulated degradation data stored in the memory.

[0017] According to some embodiments, the efficiency look-up table, the position look-up table, and the temperature look-up table can be stored in the memory.

[0018] According to some embodiments, the display apparatus can further include a scan driver that drives a plurality of scan lines connected to the plurality of pixels, and a data driver that drives a plurality of data lines connected to the plurality of pixels. The data driver can generate data signals using the output data, and supply the data signals to the plurality of pixels via the plurality of data lines.

[0019] A method of driving a display apparatus according to some embodiments of the present application can include generating input degradation data by reflecting an efficiency weight corresponding to an efficiency of a corresponding one of a plurality of pixels corresponding to each of a plurality of gray scales to input data, generating accumulated degradation data by accumulating the input degradation data, generating correction data based on the accumulated degradation data so that degradation of the plurality of pixels can be compensated for, and generating output data by reflecting the correction data to the input data.

[0020] According to some embodiments, the efficiency weight can be set so that a difference in driving current flowing through each of the plurality of pixels corresponding to each of the plurality of gray scales is reflected in the input degradation data.

[0021] According to some embodiments, the efficiency weight can be reflected in the input data in units of pixels corresponding to each of the plurality of gray scales.

[0022] According to some embodiments, the efficiency weight can be reflected in the input data in units of blocks corresponding to each of the plurality of gray scales, and each of the blocks includes at least two corresponding pixels among the plurality of pixels.

[0023] According to some embodiments, in the generating of the input degradation data, a position weight corresponding to each of a plurality of positions of the plurality of pixels and a temperature weight corresponding to a temperature can be further reflected in the input data.

[0024] According to some embodiments, the method of driving the display apparatus can further include generating data signals using the output data, and supplying the data signals to the plurality of pixels.

[0025] An electronic device according to some embodiments of the present application can include a display panel including pixels, a data conversion circuit generating input deterioration data by reflecting a weight in input data, and generating correction data using accumulated deterioration data generated by accumulating the input deterioration data, and a controller generating output data by reflecting the correction data to the input data. The weight can include an efficiency weight, and the efficiency weight can reflect an efficiency of a corresponding one of the plurality of pixels corresponding to each of a plurality of gray scales.

[0026] According to some embodiments, the efficiency weight can be set such that a difference in driving current flowing through each of the plurality of pixels corresponding to each of the plurality of gray scales is reflected in the input deterioration data.

[0027] According to some embodiments, the efficiency weight can be stored in the data conversion circuit in units of pixels corresponding to each of the plurality of gray scales.

[0028] According to some embodiments, the efficiency weight can be stored in the data conversion circuit in units of blocks corresponding to each of the plurality of gray scales, and each of the blocks can include at least two corresponding pixels among the plurality of pixels.

[0029] Aspects of some embodiments of the present application are not limited to the features mentioned above, and other technical objects not mentioned will be clearly understood by those skilled in the art from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0030] The accompanying drawings, which are included to provide a further understanding of the inventive concept and are incorporated in and constitute a part of this specification, illustrate aspects of some embodiments of the present disclosure and together with the description serve to explain aspects of some embodiments of the present disclosure.

[0031] Figure 1 FIG. 1 is a diagram illustrating a display device according to some embodiments of the present application.

[0032] Figure 2A and Figure 2B FIGS. 2A and 2B are diagrams for explaining efficiency corresponding to a gray scale.

[0033] Figure 3 is a graph illustrating luminance, current, and efficiency corresponding to a gray scale.

[0034] Figure 4 and Figure 5 FIG. 3 is a diagram illustrating aspects of a display unit according to some embodiments.

[0035] Figure 6 is a diagram illustrating aspects of a display unit according to some embodiments.Figure 1 The diagram shows an aspect of the deterioration compensator.

[0036] Figure 7 This is a diagram illustrating aspects of a method for driving a display device according to some embodiments of the present invention.

[0037] Figure 8 This illustrates some embodiments. Figure 1 The diagram shows aspects of the pixels.

[0038] Figure 9 It is used to describe the driver. Figure 8 An example diagram of the pixel method shown.

[0039] Figure 10 This is a diagram illustrating an electronic device according to some embodiments of the present invention. Detailed Implementation

[0040] In the following, various embodiments of the invention will be described in detail with reference to the accompanying drawings, enabling those skilled in the art to readily implement the invention. The invention can be embodied in various different forms and is not limited to the embodiments described herein.

[0041] For clarity in describing the invention, irrelevant details have been omitted, and throughout the specification, identical or similar components are indicated by the same reference numerals. Therefore, the reference numerals described above may also be used in other figures.

[0042] Furthermore, in the description, the expression "identical" can mean "substantially identical." That is, they can be identical enough to convince a person skilled in the art that they are identical. In other expressions, "substantially" may be omitted.

[0043] The accompanying drawings depict several embodiments of functional blocks, units, and / or modules. Those skilled in the art will understand that such blocks, units, and / or modules are physically implemented by logic circuits, individual components, microprocessors, hardwired circuits, memory elements, wire connections, and other electronic circuits. This can be formed using semiconductor-based manufacturing techniques or other manufacturing techniques. Blocks, units, and / or modules implemented by microprocessors or other similar hardware can be programmed and controlled by software to perform the various functions discussed herein, and may optionally be driven by firmware and / or software. Furthermore, each block, unit, and / or module can be implemented by dedicated hardware, or a combination of dedicated hardware performing some functions and a processor performing functions different from those of the dedicated hardware (e.g., one or more programmed microprocessors and associated circuitry). Additionally, in some embodiments, blocks, units, and / or modules can be physically separated into two or more interacting individual blocks, units, and / or modules without departing from the scope of the inventive concept. Furthermore, in some embodiments, blocks, units, and / or modules can be physically combined into more complex blocks, units, and / or modules without departing from the scope of the inventive concept.

[0044] The term "connection" between two components can mean both electrical and physical connections, but the invention is not limited thereto. For example, "connection" used in a circuit diagram can mean an electrical connection, and "connection" used in a cross-sectional or planar view can mean a physical connection.

[0045] Although the terms "first" and "second" are used to describe various components, these components are not limited to these terms. These terms are only used to distinguish one component from another. Therefore, within the technical spirit of the invention, the first component described below can be the second component.

[0046] Furthermore, the present invention is not limited to the embodiments disclosed below, and can be modified and implemented in various forms. In addition, each of the embodiments disclosed below can be implemented individually or in combination with at least one of the other embodiments.

[0047] Figure 1 This is a diagram illustrating a display device according to some embodiments of the present invention.

[0048] refer to Figure 1 According to some embodiments of the present invention, the display device 100 may include a display unit 110 (or display panel), a panel driver 102, a degradation compensator 200, and a memory 300.

[0049] The display device 100 can be applied to electronic devices such as computers, laptop computers, cellular phones, smart phones, personal digital assistants (PDAs), portable multimedia players (PMPs), digital TVs (TVs), digital cameras, portable game consoles, navigation devices, wearable devices, Internet of Things (IoT) devices, Internet of Everything (IoE) devices, e-books, virtual reality (VR) devices, augmented reality (AR) devices, vehicle navigation systems, video phones, surveillance systems, auto-focus systems, tracking systems, and motion detection systems, etc.

[0050] The display unit 110 can include pixels PX formed in an area defined by scan lines SL1 to SLn and data lines DL1, DL2, …, and DLm, where n and m can be natural numbers greater than or equal to 3. Each of the pixels PX can include a driving transistor and a light emitting element.

[0051] As an example, a pixel PXij (see Figure 8 ) located in an i-th horizontal line (or pixel row) and a j-th vertical line (or pixel column) can be connected to an i-th scan line SLi (also referred to as a scan line SLi) (see Figure 8 ) and a j-th data line DLj (also referred to as a data line DLj) (see Figure 8 ), where i can be a natural number greater than zero and equal to or less than n, and j can be a natural number greater than zero and equal to or less than m. When a scan signal is supplied to the scan lines SL1 to SLn, the pixels PX can be selected in units of horizontal lines (for example, pixels PX connected to the same scan line can be classified as one horizontal line (or pixel row)), and the pixels PX selected by the scan signal can receive a data signal from any one of the data lines DL1 to DLm connected to the pixels PX.

[0052] The driving transistor included in each of the pixels PX can control an amount of current supplied to the light emitting element in response to the data signal, and the light emitting element can emit light having a luminance corresponding to the amount of current.

[0053] According to some embodiments, each of the pixels PX can be a sub-pixel. Each of the sub-pixels can emit light of a corresponding one of colors such as red, green, and blue. However, this is merely an example, and each of the sub-pixels can also emit light of a color such as cyan, magenta, or yellow.

[0054] According to some embodiments, the panel driver 102 can include a timing controller 120, a scan driver 130, and a data driver 140. The components included in the panel driver 102 can be implemented as separate integrated circuits, and two or more of the above-described components can be implemented by being integrated into one integrated circuit. Also, the scan driver 130 can be formed in the display unit 110.

[0055] The scan driver 130 can receive a scan driving signal SCS from the timing controller 120. The scan driving signal SCS can include at least one scan start signal and a clock signal required to drive the scan driver 130. The scan driver 130 can generate a scan signal by shifting the scan start signal in response to the clock signal. The scan driver 130 can include a plurality of scan drivers so that the scan signal can be supplied at different timings within the same horizontal period in response to the circuit structure of the pixel PX.

[0056] The data driver 140 can receive output data Dout and a data driving signal DCS from the timing controller 120. The data driving signal DCS can include a sampling signal and / or a timing signal required to drive the data driver 140. The data driver 140 can generate an analog data signal based on the data driving signal DCS and the output data Dout. The data driver 140 can supply the data signal in units of 1 horizontal period.

[0057] The timing controller 120 can receive input data Din and a control signal CS from a host system through an interface. As an example, the timing controller 120 can receive the input data Din and the control signal CS from at least one of a graphic processing unit (GPU), a central processing unit (CPU), and an application processor (AP) included in the host system. The control signal CS can include various signals including a clock signal.

[0058] The timing controller 120 can generate the scan driving signal SCS and the data driving signal DCS based on the control signal CS. The scan driving signal SCS and the data driving signal DCS can be supplied to the scan driver 130 and the data driver 140, respectively.

[0059] The timing controller 120 can generate the output data Dout by reflecting correction data CADATA to the input data Din. Here, the correction data CADATA can be set so that the deterioration of the light emitting element and the driving transistor included in each of the pixels PX is compensated for. The output data Dout can be provided to the data driver 140.

[0060] According to some embodiments, the panel driver 102 can further include a power supply unit that generates a first driving power source VDD, a second driving power source VSS, and an initialization power source VINT for driving the display unit 110.

[0061] The deterioration compensator 200 can generate input deterioration data IAge based on the input data Din, and generate accumulated deterioration data AAge by accumulating the input deterioration data IAge. As an example, the deterioration compensator 200 can accumulate the input deterioration data IAge and store the input deterioration data IAge in the memory 300. In this case, the accumulated deterioration data AAge can be stored in the memory 300.

[0062] When the input data Din is input, the deterioration compensator 200 can generate the input deterioration data IAge by reflecting a position weight corresponding to a position of the pixel PX to which the input data Din is supplied, a temperature weight corresponding to a temperature of the display apparatus 100, and an efficiency weight corresponding to a gray scale of the input data Din. The deterioration compensator 200 can additionally reflect various known weights, such as a frequency of driving the display apparatus 100 and a light emission time, to the input deterioration data IAge.

[0063] The deterioration compensator 200 can generate the accumulated deterioration data AAge by accumulating the input deterioration data IAge corresponding to a position of the pixel PX or a position of a block including the pixel PX. The accumulated deterioration data AAge can include deterioration information for each of the pixels PX. The deterioration compensator 200 can generate correction data CADATA corresponding to each of the pixels PX (or blocks) in response to the accumulated deterioration data AAge, and supply the correction data CADATA to the timing controller 120. The correction data CADATA can have a correction value (e.g., a set or predetermined correction value) by which deterioration of the pixel PX can be compensated. The timing controller 120 can generate the output data Dout by reflecting the correction data CADATA to the input data Din, so that deterioration of each of the pixels PX can be compensated.

[0064] The memory 300 can store the accumulated deterioration data AAge. The memory 300 can supply the accumulated deterioration data AAge to the deterioration compensator 200 in response to a control of the deterioration compensator 200.

[0065] According to some embodiments, the deterioration compensator 200 can be implemented as a separate application processor (AP). According to some embodiments, at least a part of or the entire configuration of the deterioration compensator 200 can be included in the timing controller 120. According to some embodiments, the deterioration compensator 200 can be included in an integrated circuit (IC) including the data driver 140.

[0066] In addition, although some embodiments have been described with reference to FIG. 1 Figure 1 described above, embodiments of the present application are not limited thereto. As an example, the degradation compensator 200 can generate the input degradation data IAge based on the output data Dout as well.

[0067] Figure 2A and Figure 2B is a graph for illustrating the efficiency corresponding to the gray scale. Figure 2A and Figure 2B The first pixel PX1 and the second pixel PX2 shown in FIG. 1

[0068] Referring to FIG. 1 Figure 2A , the efficiency can differ depending on the positions of the pixels PX1 and PX2. As an example, when a data signal corresponding to the 255 gray scale is input to the first pixel PX1, the driving transistor can supply a driving current of 1A to the light emitting element LD (see FIG. 1 Figure 8 ). Thus, the brightness (e.g., 1000 nits) corresponding to the 255 gray scale can be implemented in the first pixel PX1. As an example, when a data signal corresponding to the 255 gray scale is input to the second pixel PX2, the driving transistor can supply a driving current of 1.1A to the light emitting element LD. Thus, the brightness (e.g., 1000 nits) corresponding to the 255 gray scale can be implemented in the second pixel PX2.

[0069] When the same gray scale is implemented, if the driving currents in the pixels PX1 and PX2 are different, the difference in the driving currents must be reflected in the input degradation data IAge (see FIG. 1 Figure 1 ) (and / or the accumulated degradation data AAge (see FIG. 1 Figure 1 )). According to some embodiments, the driving currents (e.g., 1A or 1.1A) flowing when the pixels PX1 and PX2 emit light at the maximum brightness can be measured, and the weighting can be reflected corresponding to the measurement results. As an example, by setting the position weight corresponding to the positions of the pixels PX1 and PX2, and by reflecting the position weight to generate the input degradation data IAge, the degree of degradation corresponding to the difference in the driving currents can be reflected in the accumulated degradation data AAge. As an example, the first pixel PX1 and the second pixel PX2 can have a 10% difference in efficiency, and the difference in efficiency can be set as the position weight.

[0070] However, when the input degradation data IAge (and / or the accumulated degradation data AAge) is generated using only the position weight, it can be impossible to reflect the efficiency of the pixels PX1 and PX2 corresponding to the gray scale.

[0071] Referring to FIG. 1 Figure 2BWhen a data signal corresponding to 123 gray levels is input to the first pixel PX1, the driving transistor can supply a driving current of 0.2 A to the light emitting element LD (see Figure 8 ). Thus, a luminance corresponding to 123 gray levels (e.g., 200 nits) can be implemented in the first pixel PX1. Further, when a data signal corresponding to 123 gray levels is input to the second pixel PX2, the driving transistor can supply a driving current of 0.21 A to the light emitting element LD. Thus, a luminance corresponding to 123 gray levels (e.g., 200 nits) can be implemented in the second pixel PX2.

[0072] That is, when the first pixel PX1 and the second pixel PX2 implement 255 gray levels, there can be a 10% efficiency difference, and when the first pixel PX1 and the second pixel PX2 implement 123 gray levels, there can be a 5% efficiency difference.

[0073] To compensate for this, according to some embodiments of the present application, by reflecting an efficiency weight corresponding to each of the gray levels to the input data Din (see Figure 1 ), input deterioration data IAge (see Figure 1 ) and corresponding accumulated deterioration data AAge (see Figure 1 ) can be generated. In this case, the efficiency difference of the pixels PX1 and PX2 corresponding to each of the gray levels can be reflected in the accumulated deterioration data AAge, and thus the accuracy of the deterioration compensation can be relatively improved.

[0074] Figure 3 is a graph showing luminance, current, and efficiency corresponding to gray levels. Figure 4 and Figure 5 are graphs showing aspects of a display unit according to some embodiments.

[0075] In Figure 3 , the left side of the vertical axis represents efficiency, and the right side of the vertical axis represents luminance when the maximum luminance is set to "1". In addition, Figure 3 the horizontal axis in may represent gray levels.

[0076] Referring to Figure 1 and Figure 3 , the luminance of the pixel PX can increase in response to an increase in the gray levels, and the driving current can increase in response to an increase in the luminance of the pixel PX. Here, the efficiency (or luminous efficiency) of the pixel PX can be differently set for each of the gray levels. As an example, the efficiency of the pixel PX can have a value higher than "1" below approximately 50 gray levels, and the efficiency of the pixel PX can have a value lower than or equal to "1" at or above approximately 50 gray levels. Here, the efficiency can correspond to luminance / driving current.

[0077] The pixel PX can have different efficiencies corresponding to each gray scale. In response thereto, the efficiencies corresponding to each gray scale must be reflected in the input degradation data IAge (and / or the accumulated degradation data AAge) so that the degradation of the pixel PX can be stably compensated for. The efficiency of the pixel PX corresponding to each gray scale can be measured during a manufacturing process.

[0078] According to some embodiments, as shown in Figure 4 corresponding one of the pixels PX can be measured during a manufacturing process, and an efficiency weight can be generated based on the driving current flowing through each of the pixels PX corresponding to each gray scale. Here, the efficiency weight can be set so that a difference in the driving current flowing through each of the pixels PX corresponding to a gray scale is reflected in the input degradation data IAge.

[0079] As an example, among the pixels PX, a pixel (e.g., a set or predetermined pixel) can be set as a reference pixel, and based on the reference pixel, a difference in the driving current of each of the pixels PX in the same gray scale can be stored in the degradation compensator 200 as an efficiency weight. Here, the efficiency weight can be stored in the degradation compensator 200 corresponding to each gray scale. In addition, the efficiency weight can be stored for the gray scale of each of the pixels PX (or in units of the pixels PX). However, when the efficiency weight is stored in the degradation compensator 200 corresponding to each gray scale in units of the pixels PX, there can be a concern that the memory capacity will increase.

[0080] According to some embodiments, as shown in Figure 5 The display unit 110 can be divided into a plurality of blocks BLK11, BLK12, …, and BLK1k, BLK21, BLK22, …, and BLK2k, …, BLKp1, BLKp2, …, and BLKpk, as shown in

[0081] As an example, the efficiency differences of the pixels PX included in the first block BLK11 corresponding to the first gray scale can be averaged and stored in the degradation compensator 200 as the efficiency weight of the first block BLK11 corresponding to the first gray scale. In addition, the efficiency differences of the pixels PX included in the first block BLK11 corresponding to the second gray scale can be averaged and stored in the degradation compensator 200 as the efficiency weight of the first block BLK11 corresponding to the second gray scale. In the same manner, the efficiency weights corresponding to each gray scale can be stored in the degradation compensator 200 in units of the blocks BLK11 to BLKpk.

[0082] According to some embodiments, the efficiency weights can be stored in the degradation compensator 200 in units of the display unit 110. As an example, the efficiency weights of each of the pixels PX corresponding to each gray scale can be averaged and stored in the degradation compensator 200 as the efficiency weight. In this case, the deviation corresponding to the position of each of the pixels PX can be compensated for by the position weight information.

[0083] Figure 6 is a diagram illustrating aspects of a degradation compensator according to some embodiments. Figure 1

[0084] Referring to Figure 6 , the degradation compensator 200 can include lookup tables (LUTs) 206, 207, and 208, a degradation accumulator 202, and a data generator 204. The lookup tables (LUTs) 206, 207, and 208 can be stored in the memory 300.

[0085] The lookup tables 206, 207, and 208 can include an efficiency LUT 206, a position LUT 207, and a temperature LUT 208. The efficiency LUT 206 can include efficiency weights of the pixels PX (see FIG. 1) corresponding to each gray scale. Here, the efficiency weights can be stored in units of the display unit 110, the blocks BLK11 to BLKpk, or the pixels PX. Figure 1

[0086] The position LUT 207 can store position weights corresponding to the positions of the pixels PX. The driving currents flowing through each of the pixels PX can be set differently in correspondence with the positions of the pixels PX. The position weights can be set so that the deviation of the driving currents corresponding to the positions of the pixels PX is reflected in the input degradation data IAge (and / or the accumulated degradation data AAge).

[0087] ​​The temperature LUT 208 can store temperature weights corresponding to temperatures. The drive current flowing through each pixel PX can be set differently in correspondence with the temperature. The temperature weights can be set so that the deviation of the drive current in correspondence with the temperature is reflected in the input degradation data IAge (and / or the accumulated degradation data AAge).

[0088] The degradation accumulator 202 can generate the input degradation data IAge by reflecting the position weight, the temperature weight, and the efficiency weight to the input data Din. As an example, the degradation accumulator 202 can generate the input degradation data IAge by reflecting the position weight corresponding to the position of the pixel PX (e.g., a specific pixel) to which the input data Din is supplied, the efficiency weight corresponding to the gradation of the input data Din supplied to the specific pixel, and the temperature weight corresponding to the operating temperature of the display device 100 (see Figure 1 ) to the input data Din.

[0089] In addition, the degradation accumulator 202 can generate the input degradation data IAge by additionally reflecting various known weights (e.g., the duty ratio (or light emission time) and the drive frequency of the pixel PX, etc.).

[0090] The input degradation data IAge generated in the degradation accumulator 202 can be supplied to the memory 300. The input degradation data IAge can be accumulated in response to the position of the pixel PX or the position of the block including the pixel PX. Accordingly, the accumulated degradation data AAge can be stored in the memory 300.

[0091] The data generator 204 can receive the input data Din and load the accumulated degradation data AAge corresponding to the input data Din. In addition, the data generator 204 can generate the correction data CDATA corresponding to each pixel PX (or block) in response to the accumulated degradation data AAge, and supply the correction data CDATA to the timing controller 120 (see Figure 1 ).

[0092] According to the above-described embodiments of the present application, the efficiency information of the pixel PX corresponding to each gradation can be reflected in the accumulated degradation data AAge. Accordingly, the degradation of the pixel PX can be stably compensated for.

[0093] Figure 7 is a diagram illustrating aspects of a method of driving a display device, according to some embodiments of the present application. Although Figure 7 Various operations in the method of driving a display device are illustrated, but embodiments according to the present disclosure are not limited thereto, and the method can include additional operations or fewer operations, or the order of the operations can be changed, according to various embodiments, without departing from the spirit and scope of embodiments according to the present disclosure, unless otherwise stated or implied.

[0094] Referring to Figure 1 , Figure 6 and Figure 7 , first, input data Din can be input to the degradation accumulator 202 (S702). When the input data Din is input, the degradation accumulator 202 can generate input degradation data IAge by reflecting the efficiency weight, the position weight, and the temperature weight to the input data Din (S704). Also, the input degradation data IAge can be accumulated in the memory 300 in units of a pixel PX or a block, thereby generating accumulated degradation data AAge (S706).

[0095] The data generator 204 can generate correction data CDATA based on the accumulated degradation data AAge (S708). Here, the correction data CDATA can be generated so that the degradation of the pixel PX is corrected. The timing controller 120 can generate output data Dout by reflecting the correction data CDATA to the input data Din (S710).

[0096] The data driver 140 can generate a data signal using the output data Dout and supply the data signal to the pixel PX. Here, the correction data CDATA can be reflected in the data signal, and thus, an image having uniform luminance can be displayed in the display unit 110 in response to the same data signal regardless of the degradation of the pixel PX.

[0097] Figure 8 is a diagram illustrating aspects of a pixel shown in Figure 1 Although Figure 8 various components in a pixel according to some embodiments of the present disclosure are illustrated, embodiments are not limited thereto, and according to some embodiments, a pixel can include additional components or fewer components without departing from the spirit and scope of embodiments according to the present disclosure.

[0098] Referring to Figure 8 , a pixel PXij according to some embodiments of the present disclosure can include transistors T11, T12, T13, T14, T15, T16, and T17, a storage capacitor Cst, and a light emitting element LD.

[0099] Hereinafter, a circuit composed of P-type transistors is described as an example. However, a person skilled in the art will be able to design a circuit composed of N-type transistors by changing the polarity of a voltage applied to a gate terminal. Similarly, a person skilled in the art will be able to design a circuit composed of a combination of P-type transistors and N-type transistors. The transistors can be configured in various types such as thin film transistors (TFTs), field effect transistors (FETs), and bipolar junction transistors (BJTs).

[0100] The eleventh transistor T11 can have a gate electrode connected to the first node N1, a first electrode connected to the second node N2, and a second electrode connected to the third node N3. The eleventh transistor T11 can be referred to as a driving transistor.

[0101] The twelfth transistor T12 can have a gate electrode connected to the scan line SLi1, a first electrode connected to the data line DLj, and a second electrode connected to the second node N2. The thirteenth transistor T13 can have a gate electrode connected to the scan line SLi2, a first electrode connected to the first node N1, and a second electrode connected to the third node N3.

[0102] The fourteenth transistor T14 can have a gate electrode connected to the scan line SLi3, a first electrode connected to the first node N1, and a second electrode connected to the third power supply line PL3. The fifteenth transistor T15 can have a gate electrode connected to the emission control line ELi, a first electrode connected to the first power supply line PL1, and a second electrode connected to the second node N2.

[0103] The sixteenth transistor T16 can have a gate electrode connected to the emission control line ELi, a first electrode connected to the third node N3, and a second electrode connected to the anode of the light emitting element LD. According to some embodiments, the fifteenth transistor T15 and the sixteenth transistor T16 can be connected to different emission control lines.

[0104] The seventeenth transistor T17 can have a gate electrode connected to the scan line SLi4, a first electrode connected to the third power supply line PL3, and a second electrode connected to the anode of the light emitting element LD. The first electrode of the storage capacitor Cst can be connected to the first power supply line PL1, and the second electrode of the storage capacitor Cst can be connected to the first node N1.

[0105] The light emitting element LD can have an anode connected to the second electrode of the sixteenth transistor T16 and a cathode connected to the second power supply line PL2. The light emitting element LD can be a light emitting diode. The light emitting element LD can be constituted by an organic light emitting diode, an inorganic light emitting diode, or a quantum dot / well light emitting diode, etc. The light emitting element LD can emit light of one of a first color, a second color, and a third color. Also, according to some embodiments, only one light emitting element LD is provided in each pixel, but according to some embodiments, a plurality of light emitting elements can be provided in each pixel. In this case, the plurality of light emitting elements can be connected in series, connected in parallel, or connected in series-parallel.

[0106] A voltage of the first driving power source VDD can be applied to the first power line PL1, a voltage of the second driving power source VSS can be applied to the second power line PL2, and a voltage of the initialization power source VINT can be applied to the third power line PL3. For example, the voltage of the initialization power source VINT can be equal to or greater than the voltage of the second driving power source VSS. For example, the voltage of the initialization power source VINT can be equal to or less than a data voltage having a smallest size among voltages of data signals that can be supplied.

[0107] Figure 9 is for illustrating a method of driving Figure 8 is a diagram for illustrating an example of a method of driving a pixel shown in

[0108] Hereinafter, for convenience of description, it is assumed that the scan lines SLi1, SLi2, and SLi4 are the i-th scan line SLi and the scan line SLi3 is the (i-1)-th scan line SLi-1. However, the connection relationship of the scan lines SLi1, SLi2, SLi3, and SLi4 can vary according to an embodiment. For example, the scan line SLi4 can be the (i-1)-th scan line SLi-1 or the (i+1)-th scan line.

[0109] Referring to Figure 8 and Figure 9 First, an emission signal of a cutoff level (logic high level) can be applied to the i-th emission control line ELi (also referred to as an emission control line ELi), a data signal DATA(i-1)j for the (i-1)-th pixel can be applied to the data line DLj, and a scan signal of an on level (logic low level) can be applied to the scan line SLi3. The high / low of the logic level can vary depending on whether a transistor is P-type or N-type.

[0110] In this case, since the scan signal of the cutoff level is applied to the scan lines SLi1 and SLi2, the twelfth transistor T12 can be in an off state, and input of the data signal DATA(i-1)j for the (i-1)-th pixel to the pixel PXij can be prevented.

[0111] In this case, since the fourteenth transistor T14 is in an on state, the first node N1 can be connected to the third power line PL3, and the first node N1 can be initialized with the voltage of the initialization power source VINT. Since the emission control signal of the cutoff level is applied to the emission control line ELi, the transistors T15 and T16 can be in an off state, and unnecessary emission of the light emitting element LD due to a process of applying the voltage of the initialization power source VINT can be prevented or reduced.

[0112] Next, a data signal DATAij for the i-th pixel PXij (also referred to as the pixel PXij) can be applied to the data line DLj, and a scan signal at an on level can be applied to the scan lines SLi1 and SLi2. Accordingly, the transistors T12, T11, and T13 can be in an on state, and the data line DLj and the first node N1 can be electrically connected to each other. Accordingly, a compensation voltage obtained by subtracting a threshold voltage of the eleventh transistor T11 from the data signal DATAij can be applied to the second electrode of the storage capacitor Cst (that is, the first node N1), and the storage capacitor Cst can maintain a voltage corresponding to a difference between the first driving power VDD and the compensation voltage. The period in which the threshold voltage of the eleventh transistor T11 is compensated for can be referred to as a threshold voltage compensation period or a data write period.

[0113] In addition, when the scan line SLi4 is the i-th scan line SLi, the anode of the light emitting element LD and the third power line PL3 can be connected to each other due to the seventeenth transistor T17 being in an on state, and the light emitting element LD can be initialized with a charge amount corresponding to a difference between the voltage of the initialization power VINT and the voltage of the second driving power VSS.

[0114] Thereafter, when an emission control signal at an on level is applied to the i-th emission control line ELi, the transistors T15 and T16 can be in an on state. Accordingly, a driving current path connecting the first power line PL1, the fifteenth transistor T15, the eleventh transistor T11, the sixteenth transistor T16, the light emitting element LD, and the second power line PL2 can be formed.

[0115] The amount of driving current flowing through the first electrode and the second electrode of the eleventh transistor T11 can be controlled according to the voltage maintained in the storage capacitor Cst. The light emitting element LD can emit light having a luminance corresponding to the amount of driving current. The light emitting element LD can emit light until an emission control signal at an off level is applied to the emission control line ELi.

[0116] When the emission control signal is at an on level, a pixel receiving the emission control signal can be in a display state. Accordingly, a period in which the emission control signal is at an on level can be referred to as an emission period EP (or an emission-allowing period). In addition, when the emission control signal is at an off level, a pixel receiving the emission control signal can be in a non-display state. Accordingly, a period in which the emission control signal is at an off level can be referred to as a non-emission period NEP (or an emission-non-allowing period).

[0117] Reference Figure 9 The described non-emission period NEP can be a period for preventing or reducing instances of the pixel PXij emitting light at an undesired luminance during the initialization period and the data write period.

[0118] During the period in which the data signal is maintained written to the pixel PXij (e.g., one frame period), one or more additional non-emission periods NEP can be provided. This can be to effectively represent low gray levels by reducing the emission period EP of the pixel PXij, or to smoothly blur motion of the image.

[0119] Figure 10 FIG. 1 is a diagram illustrating an electronic device according to some embodiments of the present application.

[0120] Referring to Figure 10 The electronic device 1000 according to some embodiments of the present application can output various information through the display module 1140. When the processor 1110 executes an application stored in the memory 1120, the display module 1140 can provide the user with application information through the display panel 1141.

[0121] The processor 1110 can acquire an external input through the input module 1130 or the sensor module 1161 and execute an application corresponding to the external input. For example, when the user selects a camera icon (or a camera application icon) displayed in the display panel 1141, the processor 1110 can acquire a user input through the input sensor 1161-2 and activate the camera module 1171. The processor 1110 can transmit image data corresponding to a captured image acquired through the camera module 1171 to the display module 1140. The display module 1140 can display an image corresponding to the captured image through the display panel 1141.

[0122] As another example, when performing personal information authentication in the display module 1140, the fingerprint sensor 1161-1 can acquire input fingerprint information as input data. The processor 1110 can compare the input data acquired through the fingerprint sensor 1161-1 with authentication data stored in the memory 1120 and execute an application based on a comparison result. The display module 1140 can display information executed according to the logic of the application through the display panel 1141. The fingerprint sensor 1161-1 can be configured or disposed to acquire fingerprint information from the entire area of the display module 1140 (or the display panel 1141).

[0123] As still another example, when a music streaming icon displayed in the display module 1140 is selected, the processor 1110 can acquire a user input through the input sensor 1161-2 and activate a music streaming application stored in the memory 1120. When a music execution command is input in the music streaming application, the processor 1110 can activate the audio output module 1163 to provide the user with audio information corresponding to the music execution command.

[0124] Hereinafter, a configuration of the electronic device 1000 is described in detail. Some of the components of the electronic device 1000 described hereinafter can be integrated and provided as one component, and one component can be provided by being divided into two or more components.

[0125] The electronic device 1000 can communicate with the external electronic device 2000 via a network (e.g., a short-range wireless communication network or a long-range wireless communication network). According to some embodiments, the electronic device 1000 can include a processor 1110, a memory 1120, an input module 1130, a display module 1140, a power supply module 1150, a built-in module 1160, and an external module 1170. According to some embodiments, at least one of the above components can be omitted from the electronic device 1000, or one or more other components can be added. According to some embodiments, some of the above components (e.g., the sensor module 1161, the antenna module 1162, or the audio output module 1163) can be integrated into another component (e.g., the display module 1140).

[0126] The processor 1110 can execute software to control at least one other component (e.g., a hardware or software component) of the electronic device 1000 connected to the processor 1110 and perform various data processing or computation. According to some embodiments, as at least a part of the data processing or computation, the processor 1110 can store a command or data received from another component (e.g., the input module 1130, the sensor module 1161, or the communication module 1173) in the volatile memory 1121, process the command or the data stored in the volatile memory 1121, and store result data in the non-volatile memory 1122.

[0127] The processor 1110 can include a main processor 1111 and a co-processor 1112. The main processor 1111 can include one or more of a central processing unit (CPU) 1111-1 and an application processor (AP). The main processor 1111 can further include one or more of a graphic processing unit (GPU) 1111-2, a communication processor (CP), and an image signal processor (ISP). The main processor 1111 can further include a neural network processing unit (NPU) 1111-3. The neural network processing unit 1111-3 can be a processor specialized in processing an artificial intelligence model, and the artificial intelligence model can be generated through machine learning. The artificial intelligence model can include a plurality of artificial neural network layers (artificial neural network). The artificial neural network can be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, and a combination of two or more of the above, but the present application is not limited to the above examples. In addition to the hardware structure, the artificial intelligence model can additionally or alternatively include a software structure. At least two of the above processing units and processors can be implemented as a single integrated component (e.g., a single chip), or can each be implemented as an independent component (e.g., a plurality of chips).

[0128] The co-processor 1112 can include a controller 1112-1. The controller 1112-1 can include an interface conversion circuit and a timing control circuit. As an example, the controller 1112-1 can include a timing controller 120 shown in FIG. 1B. The controller 1112-1 can receive an image signal from the main processor 1111, convert a data format of the image signal to match an interface specification with the display module 1140, and output image data. The controller 1112-1 can output various control signals required to drive the display module 1140. Figure 1

[0129] The co-processor 1112 can further include a data conversion circuit 1112-2, a gamma correction circuit 1112-3, a rendering circuit 1112-4, and a touch control circuit, etc. The data conversion circuit 1112-2 can receive image data from the controller 1112-1, and can compensate the image data so that an image is displayed with a desired brightness according to characteristics of the electronic device 1000 or a user's setting, or convert the image data to reduce power consumption or compensate for afterimage.

[0130] As an example, the data conversion circuit 1112-2 can include a degradation compensator 200 shown in FIG. 1C. The data conversion circuit 1112-2 can generate accumulated degradation data AAge (see FIG. 1C) and compensate the image data using the accumulated degradation data AAge. Figure 1 Figure 1 ​​) and generates correction data CADATA corresponding to the accumulated degradation data AAge (see Figure 1 ) and the like.

[0131] The gamma correction circuit 1112-3 can convert image data or a gamma reference voltage or the like so that an image displayed in the electronic device 1000 has a desired gamma characteristic. The rendering circuit 1112-4 can receive image data from the controller 1112-1 and render the image data by taking into account a pixel layout applied to the display panel 1141 of the electronic device 1000.

[0132] The touch control circuit can supply a touch signal to the input sensor 1161-2 and receive a sensing signal from the input sensor 1161-2 in response to the touch signal.

[0133] At least one of the data conversion circuit 1112-2, the gamma correction circuit 1112-3, the rendering circuit 1112-4, and the touch control circuit can be integrated into another component (e.g., the main processor 1111 or the controller 1112-1). At least one of the data conversion circuit 1112-2, the gamma correction circuit 1112-3, and the rendering circuit 1112-4 can also be integrated into the source driver 1143 described later.

[0134] The memory 1120 can store various data used by at least one component (e.g., the processor 1110 or the sensor module 1161) of the electronic device 1000, and / or input data or output data for a command related to various data. In addition, various configuration data corresponding to a user's setting can be stored in the memory 1120. The memory 1120 can include at least one of a volatile memory 1121 and a nonvolatile memory 1122. The memory 1120 can include the memory 300 shown in FIG. 3. Figure 1

[0135] The input module 1130 can receive a command or data to be used by at least one component (e.g., the processor 1110, the sensor module 1161, or the audio output module 1163) of the electronic device 1000 from the outside (e.g., a user or the external electronic device 2000) of the electronic device 1000.

[0136] ​The input module 1130 can include a first input module 1131 into which a command or data from a user is input, and a second input module 1132 into which a command or data from an external electronic device 2000 is input. The first input module 1131 can include a microphone, a mouse, a keyboard, a key (e.g., a button), or a pen (e.g., a passive pen or an active pen). The second input module 1132 can support a designated protocol that can be connected to the external electronic device 2000 via a wired or wireless device. According to some embodiments, the second input module 1132 can include a high-definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface. The second input module 1132 can include a connector, such as an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector), which can be physically connected to the external electronic device 2000.

[0137] The display module 1140 can provide visual information to a user. The display module 1140 can include a display panel 1141, a gate driver 1142, and a source driver 1143. The display module 1140 can further include a window, a chassis, and a bracket to protect the display panel 1141.

[0138] The display panel 1141 (or a display) can include a liquid crystal display panel, an organic light emitting display panel, or an inorganic light emitting display panel, and the type of the display panel 1141 is not particularly limited. The display panel 1141 can be a rigid type or a flexible type capable of being rolled or folded. The display module 1140 can further include a support, a bracket, and a heat dissipation member, etc. that support the display panel 1141.

[0139] The display panel 1141 can receive image data from the coprocessor 1112 and display an image while controlling an amount of current supplied to a second driving power source VSS (see Figure 1 ) via a pixel PX (see Figure 1 ) from a first driving power source VDD (see Figure 1 ) in response to the image data. The display panel 1141 can correspond to the display unit 110 shown in Figure 1 .

[0140] The gate driver 1142 can be mounted on the display panel 1141 as a driving chip. Additionally, the gate driver 1142 can be integrated into the display panel 1141. For example, the gate driver 1142 can include an amorphous silicon TFT gate (ASG) driver circuit, a low temperature poly-silicon (LTPS) TFT gate driver circuit, or an oxide semiconductor TFT gate (OSG) driver circuit embedded in the display panel 1141. The gate driver 1142 can receive a control signal from the controller 1112-1 and output a scan signal to the display panel 1141 in response to the control signal. The gate driver 1142 can include Figure 1 the scan driver 130 illustrated in FIG. 1.

[0141] The display module 1140 can further include an emission driver. The emission driver can output an emission control signal to the display panel 1141 in response to a control signal received from the controller 1112-1. The emission driver can be formed separately from the gate driver 1142 or can be integrated into the gate driver 1142.

[0142] The source driver 1143 can receive a control signal from the controller 1112-1, convert image data into an analog voltage (e.g., a data signal) in response to the control signal, and then output the data signal to the display panel 1141. The source driver 1143 can include Figure 1 the data driver 140 illustrated in FIG. 1.

[0143] The source driver 1143 can be integrated into another component (e.g., the controller 1112-1). The functions of the interface conversion circuit and the timing control circuit of the controller 1112-1 described above can also be integrated into the source driver 1143.

[0144] The display module 1140 can further include a voltage generation circuit 1144. The voltage generation circuit 1144 can output various voltages required to drive the display panel 1141. As an example, the voltage generation circuit 1144 can generate a first driving power source VDD, a second driving power source VSS, and an initialization power source VINT.

[0145] According to some embodiments, the display panel 1141 can include a plurality of pixel columns, each of which includes a plurality of pixels.

[0146] According to some embodiments, the source driver 1143 can convert data corresponding to red (R), green (G), and blue (B) included in image data received from the processor 1110 into red data signals (or data voltages), green data signals, and blue data signals, and supply them to a plurality of pixel rows included in the display panel 1141 during one horizontal period.

[0147] The power supply module 1150 can supply power to components of the electronic device 1000. The power supply module 1150 can include a battery that charges a power supply voltage. The battery can include a primary cell that is not rechargeable or a secondary cell that is rechargeable or a fuel cell. The power supply module 1150 can include a power management integrated circuit (PMIC). The PMIC can provide an optimized power supply to each of the above-described modules and modules described later. The power supply module 1150 can include a wireless power transceiver means electrically connected to the battery. The wireless power transceiver means can include a plurality of coil-shaped antenna radiators. The voltage generation circuit 1144 can be integrated with the power supply module 1150.

[0148] The electronic device 1000 can further include built-in modules 1160 and external modules 1170. The built-in modules 1160 can include a sensor module 1161, an antenna module 1162, and an audio output module 1163. The external modules 1170 can include a camera module 1171, a light module 1172, and a communication module 1173.

[0149] The sensor module 1161 can detect an input of a user's body or a pen of the first input module 1131 and generate an electrical signal or a data value corresponding to the input. The sensor module 1161 can include at least one of a fingerprint sensor 1161-1, an input sensor 1161-2, and a digitizer 1161-3.

[0150] The fingerprint sensor 1161-1 can generate a data value corresponding to a fingerprint of a user. The fingerprint sensor 1161-1 can include any one of an optical fingerprint sensor and a capacitive fingerprint sensor.

[0151] The input sensor 1161-2 can generate a data value corresponding to coordinate information of an input of a user's body or a pen. The input sensor 1161-2 can generate an amount of a change in capacitance due to an input as a data value. The input sensor 1161-2 can detect an input of a passive pen or transmit and receive data with an active pen.

[0152] The input sensor 1161-2 can also measure a biological signal such as blood pressure, moisture, or body fat. For example, when a user touches a part of his or her body to a sensor layer or a sensing panel and does not move for a certain period of time, the input sensor 1161-2 can detect a biological signal based on a change in an electric field caused by the part of his or her body and output information desired by the user to the display module 1140.

[0153] The digitizer 1161-3 can generate a data value corresponding to coordinate information of an input of a pen. The digitizer 1161-3 can generate an amount of electromagnetic change due to an input as a data value. The digitizer 1161-3 can detect an input of a passive pen or transmit and receive data with an active pen.

[0154] At least one of the fingerprint sensor 1161-1, the input sensor 1161-2, and the digitizer 1161-3 can be implemented as a sensor layer formed on the display panel 1141 through a continuous process. At least one of the fingerprint sensor 1161-1, the input sensor 1161-2, and the digitizer 1161-3 can be located on an upper side of the display panel 1141, and any one of the fingerprint sensor 1161-1, the input sensor 1161-2, and the digitizer 1161-3 (e.g., the digitizer 1161-3) can be located on a lower side of the display panel 1141.

[0155] At least two of the fingerprint sensor 1161-1, the input sensor 1161-2, and the digitizer 1161-3 can be formed to be integrated into one sensing panel through the same process. When integrated into one sensing panel, the sensing panel can be located between the display panel 1141 and a window located on an upper side of the display panel 1141. According to some embodiments, the sensing panel can also be located on the window, and the location of the sensing panel is not particularly limited.

[0156] At least one of the fingerprint sensor 1161-1, the input sensor 1161-2, and the digitizer 1161-3 can be built into the display panel 1141. That is, at least one of the fingerprint sensor 1161-1, the input sensor 1161-2, and the digitizer 1161-3 can be formed at the same time through a process of forming elements (e.g., light emitting elements and transistors, etc.) included in the display panel 1141.

[0157] In addition, the sensor module 1161 can generate an electrical signal or a data value corresponding to an internal or external state of the electronic device 1000. The sensor module 1161 can further include, for example, a gesture sensor, a gyro sensor, a pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or a light sensor.

[0158] The antenna module 1162 can include one or more antennas for transmitting or receiving a signal to or from an external electronic device. According to some embodiments, the communication module 1173 can transmit or receive a signal to or from an external electronic device through an antenna suitable for a communication method. An antenna pattern of the antenna module 1162 can be integrated into one component (e.g., a display panel 1141) of the display module 1140 or the input sensor 1161-2, etc.

[0159] The audio output module 1163 can be a device for outputting audio signals to the outside of the electronic device 1000, and can include, for example, a speaker for general purposes such as multimedia playback or a receiver specifically for a phone call. According to some embodiments, the receiver can be formed integrally with or separately from the speaker. An audio output mode (or pattern) of the audio output module 1163 can also be integrated into the display module 1140.

[0160] The camera module 1171 can capture still images and moving images. According to some embodiments, the camera module 1171 can include one or more lenses, image sensors, or image signal processors. The camera module 1171 can also include an infrared camera that can measure the presence or absence of a user, the position of a user, and the line of sight of a user, etc.

[0161] The light module 1172 can provide light. The light module 1172 can include a light emitting diode or a xenon lamp. The light module 1172 can operate together with the camera module 1171, or can operate independently.

[0162] The communication module 1173 can support establishing a wired or wireless communication channel between the electronic device 1000 and an external electronic device 2000, and performing communication through the established communication channel. The communication module 1173 can include one or both of a wireless communication module (such as a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) and a wired communication module (such as a local area network (LAN) communication module or a power line communication module). The communication module 1173 can communicate with the external electronic device 2000 via a short-range communication network such as Bluetooth, wireless fidelity (Wi-Fi) direct, or infrared data association (IrDA) or a long-range communication network such as a cellular network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN)). The various types of communication modules 1173 described above can be implemented as one chip or separate chips.

[0163] The input module 1130, the sensor module 1161, and the camera module 1171, etc. can be used in conjunction with the processor 1110 to control the operation of the display module 1140.

[0164] The processor 1110 can output a command or data, based on input data received from the input module 1130, to the display module 1140, the audio output module 1163, the camera module 1171, or the light module 1172. For example, the processor 1110 can generate image data in response to input data received through a mouse or an active pen, etc., and output the image data to the display module 1140, or generate command data in response to the input data and output the command data to the camera module 1171 or the light module 1172. When no input data is received from the input module 1130, the processor 1110 can switch the operation mode of the electronic device 1000 to a low power mode or a sleep mode to reduce power consumption of the electronic device 1000.

[0165] The processor 1110 can output a command or data, based on sensing data received from the sensor module 1161, to the display module 1140, the audio output module 1163, the camera module 1171, or the light module 1172. For example, the processor 1110 can compare authentication data authorized by the fingerprint sensor 1161-1 with authentication data stored in the memory 1120, and then execute an application based on a comparison result. The processor 1110 can execute a command or output corresponding image data to the display module 1140 based on sensing data detected by the input sensor 1161-2 or the digitizer 1161-3. When a temperature sensor is included in the sensor module 1161, the processor 1110 can receive temperature data about a temperature measured from the sensor module 1161, and further perform brightness correction, etc. on image data based on the temperature data.

[0166] The processor 1110 can receive measurement data about presence or absence of a user, a position of the user, and a line of sight of the user, etc. from the camera module 1171. The processor 1110 can further perform brightness correction, etc. on image data based on the measurement data. For example, the processor 1110 that determines presence or absence of a user based on input from the camera module 1171 can output image data whose brightness is corrected through the data conversion circuit 1112-2 or the gamma correction circuit 1112-3 to the display module 1140.

[0167] Some of the above-described components can be interconnected to each other by a communication method between peripheral devices such as a bus, a general purpose input / output (GPIO), a serial peripheral interface (SPI), a mobile industry processor interface (MIPI), or a ultra path interconnect (UPI) link to exchange a signal (e.g., a command or data) with each other. The processor 1110 can communicate with the display module 1140 through an interface agreed in advance. For example, any one of the above-described communication methods can be used, and is not limited to the above-described communication methods.

[0168] The display device, the method of driving the display device, and the electronic device according to the embodiments of the present application can relatively improve the accuracy of the deterioration compensation by generating the accumulated deterioration data by reflecting the efficiency weight corresponding to each gray level.

[0169] However, the effects of the present application are not limited to the above-mentioned effects, and can be variously expanded without departing from the spirit and scope of the present application.

[0170] As described above, aspects of some embodiments of the present application have been described with reference to the accompanying drawings. However, those skilled in the art will appreciate that various modifications and changes can be made to the present application without departing from the spirit and scope of the present application as set forth in the appended claims and their equivalents.

Claims

1. A display device, wherein, The display device includes: a display unit including a plurality of pixels; a degradation compensator configured to generate input degradation data by reflecting a weight in input data, and configured to generate correction data using accumulated degradation data generated by accumulating the input degradation data; and a timing controller configured to generate output data by reflecting the correction data to the input data, wherein the weight includes an efficiency weight, and the efficiency weight corresponds to an efficiency of a corresponding one of the plurality of pixels corresponding to each of a plurality of gray scales.

2. The display device according to claim 1, wherein The efficiency weight is set so that a difference in driving current flowing through each of the plurality of pixels corresponding to each of the plurality of gray scales is reflected in the input degradation data.

3. The display device according to claim 1, wherein The efficiency weight is stored in the degradation compensator in units of pixels corresponding to each of the plurality of gray scales.

4. The display device according to claim 1, wherein The efficiency weight is stored in the degradation compensator in units of blocks corresponding to each of the plurality of gray scales, and each of the blocks includes at least two corresponding pixels among the plurality of pixels.

5. The display device according to claim 1, wherein The efficiency weight is stored in the degradation compensator corresponding to a corresponding one of the plurality of gray scales by averaging the efficiency weight of each of the plurality of pixels.

6. The display device according to claim 1, wherein The weight further includes a position weight corresponding to each of a plurality of positions of the plurality of pixels and a temperature weight corresponding to a temperature, and The display device further includes: a memory configured to store the accumulated degradation data.

7. The display device of claim 6, wherein, The degradation compensator includes: an efficiency lookup table configured to store the efficiency weight; a position lookup table configured to store the position weight; a temperature lookup table configured to store the temperature weight; a degradation accumulator configured to generate the input degradation data by reflecting the efficiency weight, the position weight, and the temperature weight to the input data, configured to accumulate the input degradation data, and configured to store the accumulated degradation data in the memory; and a data generator configured to generate the correction data using the accumulated degradation data stored in the memory.

8. The display device of claim 7, wherein, The memory is configured to store the efficiency lookup table, the position lookup table, and the temperature lookup table.

9. The display device according to claim 1, wherein The display device further includes: a scan driver configured to drive a plurality of scan lines connected to the plurality of pixels; and a data driver configured to drive a plurality of data lines connected to the plurality of pixels, wherein the data driver is configured to generate a data signal using the output data, and configured to supply the data signal to the plurality of pixels via the plurality of data lines.

10. An electronic device, wherein, The electronic device includes: a display panel including a plurality of pixels; a data conversion circuit configured to generate input degradation data by reflecting a weight in input data, and configured to generate correction data using accumulated degradation data generated by accumulating the input degradation data; and a controller configured to generate output data by reflecting the correction data to the input data, wherein the weight includes an efficiency weight, and the efficiency weight corresponds to an efficiency of a corresponding one of the plurality of pixels corresponding to each of a plurality of gray scales. The weight includes an efficiency weight, and the efficiency weight reflects an efficiency of a corresponding one of the plurality of pixels corresponding to each of the plurality of gray scales.

Images