Display device and electronic device including the same

Abstract

A display device and an electronic device including the display device are provided. The display device includes a timing controller that generates image data based on an input image corresponding to a user's gaze. The display device also includes a display panel that displays an image based on the image data. The timing controller includes a mode controller that receives motion information corresponding to a user's gaze and controls a driving mode based on the amount of change in motion information corresponding to a change in the user's gaze and the amount of change in the input image. The timing controller also includes an image processor that processes the input image. At least a portion of a plurality of modules included in the image processor are deactivated according to the driving mode.

Description

[0001] Cross-reference to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2024-0171492, filed with the Korean Intellectual Property Office on November 26, 2024, the disclosure of which is incorporated herein by reference. Technical Field

[0003] This disclosure relates to display devices and electronic devices including the display devices, and more specifically, to display devices and electronic devices including the display devices for improving user dizziness. Background Technology

[0004] Currently, in the information age, the field of display devices that visually express information signals (such as optical and electrical signals) is developing rapidly. Display devices can be implemented as small, medium, or large electronic devices, such as televisions, set-top boxes, navigators, video players, Blu-ray players, personal computers, wearable devices, mobile phones, tablets, personal digital assistants (PDAs), virtual reality display devices, augmented reality display devices, mixed reality display devices, and so on.

[0005] At the same time, virtual reality display devices have the advantage of immersing users in environments that replicate reality exactly. To this end, users of virtual reality display devices wear devices that enable information exchange, such as goggles, headsets, gloves, and special suits, and experience the virtual environment.

[0006] When a user uses a virtual reality (VR) display, the distance between the user's eyes and the VR display is smaller than that between the user's eyes and a typical display, thus greatly enhancing the visual perception of the image. However, when the user's movements do not match the changes in the image in response to those movements, so-called VR sickness or motion sickness may occur. This VR sickness causes significant discomfort for VR users and is a factor limiting the duration of VR use. Summary of the Invention

[0007] One objective of this disclosure is to provide a display device that reduces user dizziness and an electronic device including the display device.

[0008] The purpose of this disclosure is not limited to the purposes mentioned above, and other purposes not mentioned above can be clearly understood by those skilled in the art based on the following description.

[0009] According to one aspect of this disclosure, a display device is provided. The display device includes: a timing controller that generates image data based on an input image corresponding to a user's gaze; and a display panel that displays an image based on the image data, wherein the timing controller includes: a mode controller that receives motion information corresponding to a user's gaze and controls a driving mode based on the amount of change in motion information corresponding to a change in the user's gaze and the amount of change in the input image; and an image processor that processes the input image, and at least a portion of a plurality of modules included in the image processor is deactivated according to the driving mode. According to another aspect of this disclosure, an electronic device is provided. The electronic device includes: a processor that generates an input image corresponding to a user's gaze; a display device including a timing controller and a display panel, the timing controller rearranging the input image to generate image data, the display panel displaying an image based on the image data; and a sensor that detects motion information corresponding to a user's gaze, wherein the timing controller includes: a mode controller that controls a driving mode of the display device based on the amount of change in motion information corresponding to changes in the user's gaze and the amount of change in the input image; and an image processor that processes the input image, and at least a portion of the plurality of modules included in the image processor is deactivated according to the driving mode.

[0010] According to another aspect of this disclosure, an electronic device is provided. The electronic device includes: a processor that generates an input image corresponding to a user's gaze; a display device including a timing controller and a display panel, the timing controller rearranging the input image to generate image data, the display panel displaying the image based on the image data; a sensor that detects motion information corresponding to the user's gaze; and a memory storing at least one lookup table (LUT), wherein the timing controller includes: a mode controller that controls a driving mode of the display device based on the amount of change in motion information corresponding to a change in the user's gaze and the amount of change in the input image; and an image processor that processes the input image, and communication between at least a portion of the plurality of modules included in the image processor and the memory is stopped according to the driving mode.

[0011] Other specific details of the exemplary embodiments are included in the detailed description and drawings.

[0012] According to an exemplary embodiment of this disclosure, an electronic device can be driven in a first mode or a second mode based on the amount of change in motion information according to the user's gaze and the amount of change in the input image according to the user's gaze.

[0013] According to an exemplary embodiment of this disclosure, when the change in motion information is less than a first threshold, or when the change in motion information is equal to or greater than the first threshold and the change in the input image is less than a second threshold, the electronic device is driven in a first mode to display the image by performing a compensation algorithm on the input image. When the change in motion information is equal to or greater than the first threshold and the change in the input image is equal to or greater than the second threshold, the electronic device is driven in a second mode to display the image without performing a separate compensation algorithm on the input image.

[0014] According to exemplary embodiments of this disclosure, VR sickness or dizziness that may occur due to user movement, display device movement, etc. (e.g., due to external factors or user's voluntary movement) can be improved.

[0015] The effects of this disclosure are not limited to those illustrated above, and many more different effects are included in this specification. Attached Figure Description

[0016] The above and other aspects, features and advantages of this disclosure will become clearer from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0017] Figure 1 This is a view illustrating an electronic device according to an exemplary embodiment of the present disclosure;

[0018] Figure 2 This is a block diagram illustrating an electronic device according to an exemplary embodiment of the present disclosure;

[0019] Figure 3 It is shown that it includes Figure 2 A block diagram of an example timing controller in an electronic device;

[0020] Figures 4A to 4C It is used to describe the driver. Figure 2 An example view of an electronic device; and

[0021] Figure 5 This is a flowchart illustrating a driving method for an electronic device according to an exemplary embodiment of the present disclosure. Detailed Implementation

[0022] The advantages and features of this disclosure, as well as methods for achieving these advantages and features, will become clear from the exemplary embodiments described in detail below with reference to the accompanying drawings. However, this disclosure is not limited to the exemplary embodiments disclosed herein, but will be implemented in various forms. The exemplary embodiments are provided by way of example only so that those skilled in the art can fully understand the disclosure and scope of this disclosure.

[0023] The shapes, dimensions, ratios, angles, numbers, etc., shown in the accompanying drawings used to describe exemplary embodiments of this disclosure are merely examples, and this disclosure is not limited thereto. Throughout the specification, the same reference numerals generally denote the same elements. Furthermore, in the following description of this disclosure, detailed descriptions of known related technologies may be omitted to avoid unnecessarily obscuring the subject matter of this disclosure. Terms such as “comprising,” “having,” and “consisting of” as used herein are generally intended to allow for the addition of additional components, unless these terms are used in conjunction with the term “only.” Unless otherwise expressly stated, any reference to the singular may include the plural.

[0024] Even without explicit explanation, components are interpreted as including the normal tolerance range.

[0025] When using terms such as “on,” “above,” “below,” and “beside” to describe the positional relationship between two parts, one or more parts may be located between the two parts, unless these terms are used with the terms “immediately” or “directly.”

[0026] When one element or layer is placed "on" another element or layer, the other layer or element can be directly inserted on or between the other element or layer.

[0027] Although the terms "first," "second," etc., are used to describe various components, these components are not limited by these terms. These terms are only used to distinguish one component from other components. Therefore, in the technical concept of this disclosure, the first component referred to below can be the second component.

[0028] Throughout the specification, the same reference numerals generally denote the same elements.

[0029] For ease of description, the dimensions and thickness of each component shown in the accompanying drawings are illustrated, and this disclosure is not limited to the dimensions and thickness of the components shown.

[0030] Features of the various embodiments of this disclosure may be partially or completely attached to or combined with each other, and may be interlocked and operated in various technical ways, and the embodiments may be performed independently or in association with each other.

[0031] In the following, a display device according to an exemplary embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0032] Figure 1 This is a view illustrating an electronic device according to an exemplary embodiment of the present disclosure.

[0033] Reference Figure 1The electronic device 10 according to the exemplary embodiment of this disclosure is implemented as a head-mounted display (HMD). A head-mounted display is an example of a wearable electronic device and is mounted on a user's head, and can be implemented in a see-through form providing augmented reality (AR) or mixed reality (HR) and / or a closed form providing virtual reality (VR). However, this is merely illustrative, and the electronic device 10 can be implemented as various display devices besides a head-mounted display.

[0034] like Figure 1 As shown, when the electronic device 10 is implemented as a head-mounted display, the electronic device 10 may include, for example, a memory cell RCS and a band BND, but this application is not limited thereto.

[0035] The RCS storage is included in the electronic device 10 and the display device displays the image.

[0036] The band BND can be secured to the storage compartment RCS to surround the top and side surfaces of the user's head, but is not limited thereto, and the form and shape of the band BND can be modified. According to an exemplary embodiment, a band BND is provided to secure the head-mounted display to the user's head, and the band BND can be replaced with various other structures such as eyeglass frames or helmets.

[0037] Figure 2 This is a block diagram illustrating an electronic device according to an exemplary embodiment of the present disclosure.

[0038] Reference Figure 2 The electronic device 10 according to exemplary embodiments of the present disclosure may include, but is not limited to, a display device 100, a processor 200, a memory 300, a power supply unit 400, and a sensor 500. The electronic device 10 may include more or fewer components.

[0039] Processor 200 can control electronic device 10. For example, processor 200 can be connected to other configurations of electronic device 10 via interfaces such as address bus, control bus, and data bus. Processor 200 can execute software to control at least one other component of electronic device 10 connected to processor 200, such as hardware components, firmware, or software components, and perform various data processing or operations.

[0040] Processor 200 can generate and output input RGB images. Processor 200 can convert the digital image or video data of the input RGB images into a format suitable for display by display device 100 and output it to display device 100. Furthermore, processor 200 can generate a control signal CS and output it to display device 100. For example, control signal CS may include timing signals such as horizontal synchronization signals, vertical synchronization signals, data enable signals, and clock signals.

[0041] The display device 100 can visually provide information to the outside of the electronic device 10 (e.g., to a user). For this purpose, the display device 100 may include, for example, a timing controller 110, a gate driver 120, a data driver 130, and a display panel 140.

[0042] Display panel 140 can generate an image to be provided to a user. For example, display panel 140 may include a plurality of pixels PX in which pixel circuitry is arranged. Each of the plurality of pixels PX may be connected to a corresponding gate line GL and a corresponding data line DL to display an image in response to a gate signal supplied to gate line GL and a data signal supplied to data line DL.

[0043] The timing controller 110 can control the gate driver 120 and the data driver 130 based on the input image RGB and the control signal CS. For example, the timing controller 110 can generate a gate control signal GCS and a data control signal DCS based on the control signal CS provided from the processor 200. The gate control signal GCS can be supplied to the gate driver 120, and the data control signal DCS can be supplied to the data driver 130.

[0044] In addition, the timing controller 110 can rearrange the input image RGB with digital image or video data format provided by the processor 200 according to the resolution of the display panel 140 to generate image data DATA and provide the image data to the data driver 130.

[0045] The timing controller 110 may include an image processor 111. The image processor 111 can process an input image RGB supplied from the processor 200. For example, the image processor 111 can perform compensation (e.g., compensation algorithms) on the input image RGB, such as at least one of luminance-based compensation, voltage-based compensation, chromaticity-based compensation, sharpness-based compensation, and clarity-based compensation. Therefore, image data DATA supplied to the data driver 130 can be generated by realigning the compensated input image RGB.

[0046] At the same time, despite Figure 2The illustration shows an image processor 111 included in a timing controller 110, but exemplary embodiments of this disclosure are not limited thereto. For example, the image processor 111 may be included in a processor 200.

[0047] According to an exemplary embodiment, the timing controller 110 can be implemented by various circuits or electronic components such as a field-programmable gate array (FPGA), a digital signal processor (DSP), a microcontroller (MCU), a microprocessor (MPU), an integrated circuit (IC), or an application-specific integrated circuit (ASIC). Furthermore, the timing controller 110 can send signals to or receive signals from other configurations through one or more predetermined interfaces and includes storage media such as one or more registers. For example, the interface may include, but is not limited to, a low-voltage differential signaling (LVDS) interface, an embedded clock point-to-point interface (EPI), a mobile industry processor interface display serial interface (MIPI DSI), a general purpose input / output (GPIO) interface, or a serial peripheral interface (SPI).

[0048] The gate driver 120 can generate a gate signal based on the gate control signal GCS and output the gate signal to multiple gate lines GL. For example, the gate driver 120 can sequentially output the gate signal to multiple gate lines GL.

[0049] The data driver 130 can convert digital image data DATA supplied from the timing controller 110 into an analog data signal based on the data control signal DCS, so as to supply the converted analog data signal to multiple data lines DL.

[0050] The memory 300 can store data required for the operation of the electronic device 10. For example, the memory may include: non-volatile memory devices, such as flash memory devices (including, for example, NOR flash memory devices, NAND flash memory devices, etc.), one-time programmable (OTP) memory devices, mask read-only memory (Mask ROM), erasable programmable read-only memory (EPROM) devices, electrically erasable programmable read-only memory (EEPROM) devices, phase-change random access memory (PRAM) devices, resistive random access memory (RRAM) devices, nano-floating gate memory (NFGM) devices, polymer random access memory (PoRAM) devices, magnetic random access memory (MRAM), ferroelectric random access memory (FRAM) devices; and / or volatile memory devices, such as double data rate (DDR) memory devices, dynamic random access memory (DRAM) devices (e.g., embedded DRAM), static random access memory (SRAM) devices, cache, or mobile DRAM devices, but are not limited thereto.

[0051] The memory 300 can communicate with other configurations of the electronic device 10, such as the display device 100 or the processor 200, via a memory interface.

[0052] The power supply unit 400 can supply drive voltage or current to the display device 100 (e.g., timing controller 110, display panel 140, gate driver 120, and data driver 130) and / or control the supplied voltage or current. For example, the power supply unit 400 may include, for example, a power management integrated circuit (PMIC), such as a DC-DC converter, including, for example, a boost converter, a buck converter, a regulator, a charge pump, etc.

[0053] Sensor 500 can sense the motion of electronic device 10 to detect and generate motion information MTD corresponding to the user's gaze. For example, sensor 500 may include, but is not limited to, a motion sensor comprising at least one of a gyroscope sensor, an accelerometer, a velocity sensor, a magnetometer, a barometer, an ultrasonic sensor, an infrared sensor, a proximity sensor, an ambient light sensor, a global positioning system (GPS), LiDAR (Light Detection and Ranging), and an inertial sensor.

[0054] Sensor 500 can generate and output motion information MTD at each frame of the displayed image, but is not limited thereto. For example, sensor 500 can generate and output motion information MTD at every N-th frame of the displayed image (where N is an integer greater than 1, for example, N=2, 3, 4...), or at every two or more frames of the displayed image.

[0055] Meanwhile, when the electronic device 10 is implemented as a reference Figure 1 In the described head-mounted display, the display device showing images of virtual reality and / or augmented reality and / or mixed reality may be positioned very close to the user's eyes compared to conventional display devices. In this case, the user's visual perception of the image is relatively increased, but if the user's movement and the resulting changes in the image do not match, the user may experience VR sickness or vertigo. For example, when a user turns his or her head and a change in gaze occurs, the display device, including the electronic device, should display an image on the display panel corresponding to the change in gaze. However, due to the time required for communication, signal processing, etc., by the display device, the image corresponding to the user's gaze may be displayed relatively late, which may lead to the user experiencing VR sickness.

[0056] Therefore, when a user's gaze shifts due to, for example, movement of the electronic device 10 or movement of the user, the electronic device 10 according to an exemplary embodiment of this disclosure can compare the change in motion information MTD with a first threshold based on motion information output from sensor 500, and compare the change in the RGB of the input image with a second threshold. Based on the comparison result, the electronic device 10 and / or the display device 100 can be driven in a first mode or a second mode.

[0057] For example, when the change in motion information MTD is less than a first threshold, or when the change in motion information MTD is equal to or greater than the first threshold while the change in the input image RGB is less than a second threshold, electronic device 10 can drive display device 100 in a first mode in which an image is displayed by performing a compensation algorithm on the input image RGB. In contrast, when the change in motion information MTD is equal to or greater than the first threshold and the change in the input image RGB is equal to or greater than the second threshold, electronic device 10 can drive display device 100 in a second mode in which an image is displayed without performing separate compensation on the input image RGB. For example, all of the plurality of modules included in image processor 111 can be activated in the first mode, and at least one of the plurality of modules included in image processor 111 can be deactivated in the second mode.

[0058] Therefore, when a change in the user's gaze occurs due to the user's movement and the corresponding change in the image occurs outside a predetermined reference—for example, when the difference between the user's movement and the resulting image change reaches a level that causes virtual reality sickness—the electronic device 10 according to an exemplary embodiment of this disclosure can drive the display device 100 in a second mode in which the image is displayed without performing separate compensation. In this case, the time required for communication, signal processing, etc., of the electronic device 10 or the display device 100 is reduced, thereby improving the amount of difference between the user's movement and the resulting image change. Therefore, virtual reality sickness that may occur due to the user's movement, the movement of the display device, etc. (e.g., due to external factors or the user's voluntary movement) can be improved.

[0059] In the following text, reference will be made to Figures 3 to 4C To provide a more specific description.

[0060] Figure 3 It is shown that it includes Figure 2 A block diagram of an example timing controller in an electronic device.

[0061] Reference Figure 2 and Figure 3The timing controller 110 may include an image processor 111, a mode controller 112, a configuration register 113, a memory interface 114, a scheduler 115, a receiver 116, and a transmitter 117.

[0062] At the same time, despite Figure 3 The image processor 111, mode controller 112, configuration register 113, memory interface 114, and scheduler 115 are shown to be included in the timing controller, but exemplary embodiments of this disclosure are not limited thereto. For example, at least one of the image processor 111, mode controller 112, configuration register 113, memory interface 114, and scheduler 115 may be included in the processor 200.

[0063] Image processor 111 can perform RGB compensation on the input image, such as at least one of luminance-based compensation, voltage-based compensation, chromaticity-based compensation, sharpness-based compensation, and clarity-based compensation. Hereinafter, the image processor 111 performing at least one of luminance-based compensation and voltage-based compensation will be described as an example. However, those skilled in the art will understand that image processor 111 may additionally or alternatively perform other compensations on the input image.

[0064] Therefore, in an exemplary embodiment, the image processor 111 may include, but is not limited to, a gamma converter 1111, a first compensator 1112, a gamma converter 1113, a digital gamma converter 1114, a second compensator 1115, a data converter 1116, and a dithering unit 1117.

[0065] The gamma converter 1111 can perform gamma demapping on the grayscale data (pixel data) of the input image RGB. For example, the gamma converter 1111 can convert the grayscale data of the input image RGB into luminance data based on a grayscale-luminance conversion lookup table (LUT, hereinafter referred to as the "first lookup table") supplied from the memory 300 via the memory interface 114, a grayscale-luminance curve, a grayscale-luminance function, etc.

[0066] The grayscale data of the input image RGB input to the gamma de-converter 1111 may include, but is not limited to, red grayscale data, green grayscale data, and blue grayscale data, and the grayscale data of the input image may include data based on other color systems (e.g., CMYK, CMY, CIE, YUV, YCbCr, HSB, etc.). According to an exemplary embodiment, the gamma de-converter 1111 may expand the bit depth of each color by taking into account the perceived brightness of the red grayscale data, green grayscale data, and blue grayscale data, but is not limited to this.

[0067] The first compensator 1112 can receive luminance data of the input image RGB converted and output from the gamma converter 1111, and perform first operational processing on the luminance data of the input image RGB for luminance-based compensation. For example, luminance-based compensation may include power consumption reduction compensation of the display device, image retention compensation, color temperature compensation, ambient light adaptation compensation, non-uniformity compensation, high dynamic range tone mapping (HDR Tone Mapping), etc., but these are merely illustrative and the exemplary embodiments of this disclosure are not limited thereto.

[0068] Gamma converter 1113 can receive the output data of first compensator 1112 (e.g., luminance data of an input image (RGB) that has undergone the first operational processing required for luminance-based compensation) and perform gamma processing on that output data. For example, gamma converter 1113 can convert the grayscale data of the input image RGB back into luminance data based on a luminance-grayscale conversion lookup table (LUT, hereinafter referred to as the "second lookup table") supplied from memory 300 via memory interface 114, a gamma correction curve, a gamma correction function, etc. Therefore, the grayscale data of the input image RGB output from gamma converter 1113 can be grayscale data to which luminance-based compensation has been applied.

[0069] Digital gamma converter 1114 can perform digital gamma processing on the output data of gamma converter 1113 (e.g., grayscale data (pixel data) of an input image RGB with brightness-based compensation applied). For example, digital gamma converter 1114 can convert grayscale data of the input image RGB into voltage data based on a grayscale-to-voltage conversion lookup table (LUT, hereinafter referred to as "third lookup table"), grayscale-to-voltage curve, grayscale-to-voltage function, etc., supplied from memory 300 via memory interface 114.

[0070] The second compensator 1115 can receive voltage data of the input image RGB converted and output from the digital gamma converter 1114, and perform second operational processing required for voltage-based compensation on the voltage data of the input image RGB. For example, voltage-based compensation may include image display performance compensation of the display panel 140, camera device compensation, image retention compensation, threshold voltage offset compensation, mobility compensation, parasitic capacitance compensation, voltage drop compensation, temperature-voltage compensation, clock skew / jitter compensation, data signal equalization compensation, dynamic voltage and frequency scaling (DVFS) compensation, backlight dimming compensation, and external compensation, but these are merely illustrative and the exemplary embodiments of this disclosure are not limited thereto.

[0071] Data converter 1116 can receive output data from second compensator 1115 (e.g., voltage data of an input image (RGB) that has undergone the second operational processing required for voltage-based compensation) and convert the voltage data back into grayscale data. For example, data converter 1116 can convert the voltage data of the input image RGB into grayscale data based on a voltage-luminance conversion lookup table (LUT, hereinafter referred to as the "fourth lookup table"), voltage-luminance curve, voltage-luminance function, etc., supplied from memory 300 via memory interface 114. Therefore, the grayscale data of the input image RGB output from data converter 1116 can be grayscale data that has undergone both luminance-based compensation and voltage-based compensation.

[0072] In the above description, the gamma converter 1111, gamma converter 1113, digital gamma converter 1114, and data converter 1116 have been described based on the data field conversion processing according to the first lookup table, second lookup table, third lookup table, and fourth lookup table received from memory 300. However, exemplary embodiments of this disclosure are not limited thereto. For example, at least one of the gamma converter 1111, gamma converter 1113, digital gamma converter 1114, and data converter 1116 may use functions, equations, curves, graphs, etc., to perform the data field conversion processing.

[0073] Simultaneously, in at least a portion of the data processing of the gamma converter 1111, the first compensator 1112, the gamma converter 1113, the digital gamma converter 1114, the second compensator 1115, and the data converter 1116, the number of bits in the digital data can be increased or decreased. Here, when the number of bits is reduced, quantization errors may occur due to the least significant bit (LSB). Therefore, in some exemplary embodiments, at least one of the gamma converter 1111, the first compensator 1112, the gamma converter 1113, the digital gamma converter 1114, the second compensator 1115, and the data converter 1116 can perform an error diffusion algorithm that reflects the error onto the surrounding pixel data to improve image quality.

[0074] The dithering unit 1117 can perform a dithering operation to increase the grayscale resolution of the input image RGB, so as to output the dithered input image RGB data through the transmitter 117. According to an exemplary embodiment, the dithering unit 1117 can perform at least one of spatial dithering and temporal dithering operations, but this disclosure is not limited thereto. Spatial dithering can adjust the grayscale data of adjacent pixels PX to represent grayscale with more bits than the number of bits per grayscale data point. Temporal dithering can adjust the grayscale data in adjacent frames to represent grayscale with more bits than the number of bits per grayscale data point.

[0075] In one exemplary embodiment, the dithering unit 1117 may perform dithering on a compensated input image RGB or an uncompensated input image RGB, depending on the driving mode of the electronic device 10 or the display device 100. For example, in a first mode of the display device 100, the dithering unit 1117 may generate and output an input image (hereinafter referred to as "first compensated input image RGBa") obtained by performing dithering on the grayscale data of the compensated (e.g., brightness-based compensation and voltage-based compensation) input image RGB, wherein the compensation may be achieved, for example, by subjecting the grayscale data of the input image RGB (e.g., sequentially) to one or more (including all) of a gamma converter 1111, a first compensator 1112, a gamma converter 1113, a digital gamma converter 1114, a second compensator 1115, and a data converter 1116. As another example, in the second mode of the display device 100, the dithering unit 1117 can directly receive the input image RGB from the mode controller 112 or the receiver 116, and generate and output the input image obtained by performing a dithering operation on the grayscale data of the corresponding input image RGB (hereinafter, "the second compensated input image RGBb"). This will be described in detail below in conjunction with the operation of the mode controller 112.

[0076] The mode controller 112 can control the driving mode of the electronic device 10 and / or the display device 100 based on motion information MTD and input image RGB.

[0077] For example, the mode controller 112 can compare the amount of change in motion information MTD supplied from the sensor 500 via the configuration register 113 with a first threshold, and compare the amount of change in the input image RGB supplied from the processor 200 via the receiver 116 with a second threshold. Here, the first threshold can be set to the minimum amount of positional change of the electronic device 10 that causes VR sickness or dizziness based on the degree of movement of the user's gaze. The second threshold can be set to the minimum amount of data change in the input image RGB that causes VR sickness or dizziness based on the degree of image change depending on the movement of the user's gaze. The first and second thresholds can be preset based on experiments, but these are merely illustrative, and exemplary embodiments of this disclosure are not limited thereto. The first and second thresholds can be determined, for example, by computational equations, algorithms, functions, methods, etc., that reflect human cognitive abilities.

[0078] In one exemplary embodiment, the mode controller 112 can compare the amount of change in motion information with a first threshold at each frame of the displayed image, and compare the amount of change in RGB of the input image with a second threshold. That is, the mode controller 112 can determine the driving mode of the display device 100 at each frame of the displayed image. However, this is only illustrative, and the exemplary embodiments of this disclosure are not limited thereto. For example, the mode controller 112 can determine the driving mode of the display device 100 at every Nth frame of the displayed image (where N is an integer greater than 1, for example, N=2, 3, 4...), or at every two or more displayed images.

[0079] In one exemplary embodiment, the mode controller 112 may drive the display device 100 in a first mode or a second mode based on the comparison result. For example, when the change in motion information MTD is equal to or greater than a first threshold and the change in input image RGB is equal to or greater than a second threshold, the mode controller 112 may drive the display device 100 in the second mode, and in other cases, the display device 100 may be driven in the first mode.

[0080] For example, when the change in motion information MTD is less than a first threshold, mode controller 112 can drive display device 100 in a first mode in which the image is displayed by performing compensation on the input image RGB. In this case, image processor 111 can perform a compensation algorithm (e.g., at least one of brightness-based compensation, voltage-based compensation, etc.) on the input image RGB, and generate and output a first compensated input image RGBa by performing a dithering operation on the compensated input image RGB.

[0081] Specifically, in the first mode of the display device 100, the mode controller 112 can supply the input image RGB received from the receiver 116 to the gamma converter 1111 of the image processor 111. In this case, compensation, such as brightness-based compensation and voltage-based compensation, can be performed according to the operation of the gamma converter 1111, the first compensator 1112, the gamma converter 1113, the digital gamma converter 1114, the second compensator 1115, and the data converter 1116 (e.g., in sequence). The first compensated input image RGBa can be generated and output by the operation of the dithering unit 1117. Therefore, in the first mode of the display device 100, all components or modules included in the image processor 111 and performing compensation can operate (e.g., in sequence) to generate the first compensated input image RGBa.

[0082] Furthermore, when the change in motion information MTD is equal to or greater than a first threshold while the change in the input image RGB is less than a second threshold, the mode controller 112 can drive the display device 100 in a first mode in which the image is displayed by performing compensation on the input image RGB. In this case, the image processor 111 can perform compensation on the input image RGB (e.g., at least one of brightness-based compensation and voltage-based compensation), and generate and output a first compensated input image RGBa by performing a dithering operation on the compensated input image RGB.

[0083] In contrast, when the change in motion information MTD is equal to or greater than a first threshold and the change in the input image RGB is equal to or greater than a second threshold, the mode controller 112 can drive the display device 100 in a second mode to display the image without performing separate compensation on the input image RGB. In this case, the image processor 111 can perform only dithering without performing separate compensation on the input image RGB to generate and output a second compensated input image RGBb.

[0084] Specifically, in the second mode of the display device 100, the mode controller 112 can supply the input image RGB received from the receiver 116 to the dithering unit 1117 of the image processor 111. In this case, the de-gamma converter 1111, the first compensator 1112, the gamma converter 1113, the digital gamma converter 1114, the second compensator 1115, and the data converter 1116 can be deactivated and not operated. The dithering unit 1117 can directly receive the input image RGB from the mode controller 112 or the receiver 116, and generate and output a second compensated input image RGBb through dithering operation. Therefore, in the second mode of the display device 100, all components or modules included in the image processor 111 and performing compensation, except for the dithering unit 1117, can be deactivated to generate the second compensated input image RGBb.

[0085] Meanwhile, as mentioned above, when the movement of the user wearing the electronic device 10 and the corresponding changes in the screen do not match, the user may experience VR sickness or dizziness. For example, based on human cognitive abilities, it may take humans approximately 10 ms to 20 ms, or a time delay, to perceive the space or screen corresponding to the change in gaze based on the movement of the gaze. Therefore, when a change in the user's gaze occurs due to the user turning his or her head, the display device 100 included in the electronic device 10 worn by the user needs to display an image corresponding to the user's changed gaze on the display panel 140 within 10 ms, so that the user does not experience VR sickness or dizziness.

[0086] Here, when a change in the user's gaze occurs, the time (latency) for displaying the changed image can correspond to the sum of the time (latency) for generating the input image RGB corresponding to the user's changed gaze from the processor 200 and the image processing time (latency) of the timing control unit 110 (e.g., image processor 111). As the amount of image data changes according to the change in the user's gaze, the time (latency) for generating the input image RGB corresponding to the user's changed gaze from the processor 200 and the image processing time (latency) of the image processor 111 can both increase, potentially causing the user to experience VR sickness or dizziness.

[0087] Therefore, in the case of the electronic device 10 according to an exemplary embodiment of this disclosure, when the amount of data change in the image corresponding to the change in gaze caused by the user turning his or her head is equal to or greater than a predetermined value, that is, when the amount of change in motion information MTD is equal to or greater than a first threshold and the amount of change in input image RGB is equal to or greater than a second threshold, all components or modules included in the image processor 111 and performing compensation, except for the jitter unit 1117, can be deactivated. Therefore, the time required for input image RGB data domain conversion processing, compensation application, etc., is shortened, thereby suppressing VR sickness or dizziness in users based on gaze changes.

[0088] At the same time, when the user's gaze changes, causing the image to change, the user's ability to perceive image quality may become relatively low. Therefore, as described above, in the second mode of the display device 100, even if the components or modules included in the image processor 111 and performing compensation are deactivated, resulting in a relative decrease in image quality, the user cannot perceive the degradation of image quality.

[0089] Refer again Figure 3 Configuration register 113 can store configuration values ​​or configuration codes of timing controller 110, and timing controller 110 can control each component or module according to the configuration values ​​or configuration codes stored in configuration register 113. For example, image processor 111, mode controller 112 and memory interface 114 can be controlled according to the configuration values ​​or configuration codes stored in configuration register 113.

[0090] In addition, the configuration register 113 can receive and store motion information MTD from the sensor 500, and supply the motion information to the mode controller 112.

[0091] The memory interface 114 can facilitate communication between the timing controller 110 and the memory 300. For example, the memory interface 114 can facilitate communication between the image processor 111 and / or the configuration register 113 and the memory 300.

[0092] In one exemplary embodiment, memory interface 114 can supply data required by the gamma converter 1111, first compensator 1112, gamma converter 1113, digital gamma converter 1114, second compensator 1115, and data converter 1116 included in image processor 111 from memory 300 to image processor 111. For example, gamma converter 1111, gamma converter 1113, digital gamma converter 1114, and data converter 1116 can receive a first lookup table, a second lookup table, a third lookup table, and a fourth lookup table from memory 300 through memory interface 114. First compensator 1112 and second compensator 1115 can receive compensation-required data from memory 300 through memory interface 114.

[0093] Here, as described above, when the display device 100 is driven in the second mode, all components or modules included in the image processor 111 and performing compensation, except for the dithering unit 1117, can be deactivated. Therefore, the communication time between the gamma converter 1111, the first compensator 1112, the gamma converter 1113, the digital gamma converter 1114, the second compensator 1115, and the data converter 1116 and the memory 300 can also be saved. For example, when the memory 300 is implemented by a non-volatile memory device such as flash memory to store various compensation data, lookup tables, and algorithm control configuration values, the data communication time is longer than when the memory 300 is implemented by a volatile memory device. Furthermore, although the memory 300 is implemented by a volatile memory device such as DDR memory, high-resolution images have a relatively large amount of image data, requiring a longer data communication time. However, in the second mode of the display device 100, components or modules of the image processor 111 can be deactivated, thus reducing the time required for communication between the image processor 111 and the memory 300. Therefore, it can more effectively suppress VR sickness or dizziness in users over time.

[0094] Scheduler 115 may be implemented mechanically or electronically. For example, scheduler 115 may be implemented by hardware circuitry or firmware circuitry, or by software-generated sequences configured by instructions or registers. Scheduler 115 may be connected to each component or module in timing controller 110 to manage that component or module.

[0095] According to an exemplary embodiment, in a first mode in which a compensation operation for the input image RGB is performed in the display device 100, the scheduler (core) operation of the scheduler 115 can be performed. In a second mode in which a separate compensation operation for the input image RGB is not performed in the display device 100, the scheduler of the scheduler 115 can be turned off.

[0096] Figures 4A to 4C is a view illustrating an example of an electronic device for driving Figure 2 .

[0097] Referring to Figure 3 and Figure 4A , when the user's gaze moves from the first gaze ST1 to the second gaze ST2, the sensor 500 included in the electronic device 10 worn by the user generates first motion information MTD1 corresponding to the first gaze ST1 and second motion information MTD2 corresponding to the second gaze ST2.

[0098] Here, when the change amount of the motion information MTD according to the change of the user's gaze (for example, the difference between the first motion information MTD1 and the second motion information MTD2) is less than the first threshold TH1 (in Figure 4A , represented by "|MTD1 - MTD2| < TH1"), the display device 100 can be driven in the first mode.

[0099] Meanwhile, when the change amount of the motion information MTD according to the change of the user's gaze is less than the first threshold TH1, regardless of the change amount of the input image RGB (for example, the difference between the first input image RGB1 corresponding to the first gaze ST1 and the second input image RGB2 corresponding to the second gaze ST2), the display device 100 can be driven in the first mode.

[0100] Next, referring to Figure 3 and Figure 4B , when the user's gaze moves from the third gaze ST3 to the fourth gaze ST4, the sensor 500 included in the electronic device 10 worn by the user can generate third motion information MTD3 corresponding to the third gaze ST3 and fourth motion information MTD4 corresponding to the fourth gaze ST4.

[0101] Here, even if the change amount of the motion information MTD according to the change of the user's gaze (for example, the difference between the third motion information MTD3 and the fourth motion information MTD4) is equal to or greater than the first threshold TH1 (in Figure 4B , represented by "|MTD3 - MTD4| ≥ TH1"), when the change amount of the input image RGB (for example, the difference between the third input image RGB3 corresponding to the third gaze ST3 and the fourth input image RGB4 corresponding to the fourth gaze ST4) is less than the second threshold TH2 (in Figure 4B , represented by "|RGB3 - RGB4| < TH2"), the display device 100 can be driven in the first mode.

[0102] Next, referring to Figure 3 and Figure 4CWhen the user's gaze moves from the fifth gaze ST5 to the sixth gaze ST6, the sensor 500 included in the electronic device 10 worn by the user can generate a fifth motion information MTD5 corresponding to the fifth gaze ST5 and a sixth motion information MTD6 corresponding to the sixth gaze ST6.

[0103] Here, when the change in motion information MTD based on the user's gaze (e.g., the difference between the fifth motion information MTD5 and the sixth motion information MTD6) is equal to or greater than the first threshold TH1 (represented in Figure 4 by "|MTD5-MTD6|≥TH1") and the change in input image RGB (e.g., the difference between the fifth input image RGB5 corresponding to the fifth gaze ST5 and the sixth input image RGB6 corresponding to the sixth gaze ST6) is equal to or greater than the second threshold TH2 (in Figure 4)... Figure 4C When the image changes significantly depending on the user's gaze, the display device 100 can be driven in a second mode (represented by "|RGB5-RGB6|≥TH2"). Therefore, even if the amount of image variation is large, the time required for RGB data domain conversion processing and compensation of the input image, as well as the time required for communication between the image processor 111 and the memory 300, is reduced. Thus, VR sickness or dizziness in the user due to gaze changes can be suppressed (eliminated).

[0104] Figure 5 This is a flowchart illustrating a driving method for an electronic device according to an exemplary embodiment of the present disclosure.

[0105] Reference Figures 2 to 5 In reference Figure 2 Performed on the electronic device 10 described in Figure 4 Figure 5 The driving method of electronic devices. For example, Figure 5 The driving method of the electronic device can be compared with that of the referenced Figures 2 to 4C The operation of the timer controller 110 described is essentially the same. Therefore, details already referenced will not be repeated. Figures 2 to 4C The description is a repetition of the content being described.

[0106] First, refer to Figure 5 ,according to Figure 5 The driving method of the electronic device can compare the change in motion information MTD ΔMTD with a first threshold TH1 (S501).

[0107] Here, when the change in motion information MTD, ΔMTD, is less than the first threshold TH1, in Figure 5 In the method of driving an electronic device, the electronic device 10 or the display device 100 can be driven in a first mode (S502).

[0108] Here, when the change in motion information MTD, ΔMTD, is equal to or greater than the first threshold TH1, in Figure 5 In the driving method of the electronic device, the change amount ΔRGB of the input image RGB can be compared with the second threshold TH2 (S503).

[0109] Here, when the change in RGB of the input image, ΔRGB, is less than the second threshold TH2, in Figure 5 In the method of driving an electronic device, the electronic device 10 or the display device 100 can be driven in a first mode (S502).

[0110] In contrast, when the change in RGB values ​​of the input image, ΔRGB, is equal to or greater than the second threshold TH2, in Figure 5 In the driving method of the electronic device, the electronic device 10 or the display device 100 can be driven in a second mode (S504).

[0111] Exemplary embodiments of this disclosure can also be described as follows:

[0112] According to one aspect of this disclosure, a display device is provided. The display device includes a timing controller that generates image data based on an input image corresponding to a user's gaze. The display device also includes a display panel that displays an image based on the image data. The timing controller includes a mode controller that receives motion information corresponding to a user's gaze and controls a driving mode based on the amount of change in motion information corresponding to a change in the user's gaze and the amount of change in the input image. The timing controller also includes an image processor that processes the input image. At least a portion of the plurality of modules included in the image processor are deactivated according to the driving mode.

[0113] In a first mode, where the change in motion information is less than a first threshold or the change in the input image is less than a second threshold, all modules included in the image processor can be activated. In a second mode, where the change in motion information is equal to or greater than the first threshold or the change in the input image is equal to or greater than the second threshold, at least some of the modules included in the image processor can be deactivated.

[0114] According to another aspect of this disclosure, an electronic device is provided. The electronic device includes a processor that generates an input image corresponding to a user's gaze. The electronic device further includes a display device comprising a timing controller and a display panel, the timing controller rearranging the input image to generate image data, and the display panel displaying the image based on the image data. The electronic device also includes a sensor that detects motion information corresponding to the user's gaze. The timing controller includes a mode controller that controls a driving mode of the display device based on the amount of change in motion information corresponding to changes in the user's gaze and the amount of change in the input image. The timing controller includes an image processor that processes the input image. At least a portion of the plurality of modules included in the image processor are deactivated according to the driving mode.

[0115] When the change in motion information is less than a first threshold or the change in the input image is less than a second threshold, the mode controller can drive the display device in a first mode. When the change in motion information is equal to or greater than the first threshold and the change in the input image is equal to or greater than the second threshold, the mode controller can drive the display device in a second mode.

[0116] In the first mode, all the multiple modules included in the image processor can be activated. And in the second mode, at least some of the multiple modules included in the image processor can be deactivated.

[0117] The image processor may include a gamma converter that converts grayscale data of an input image into luminance data. The image processor may also include a first compensator that performs a first operation on the luminance data of the input image output from the gamma converter. The image processor may also include a gamma converter that converts the luminance data of the input image, for which the first operation has been performed, into grayscale data. The image processor may also include a digital gamma converter that converts the grayscale data of the input image, for which the gamma converter output, into voltage data. The image processor may also include a second compensator that performs a second operation on the voltage data of the input image output from the digital gamma converter. The image processor may also include a data converter that converts the voltage data of the input image, for which the second operation has been performed, into grayscale data. Furthermore, the image processor may include a dithering unit that performs dithering on the grayscale data of the input image output from the data converter.

[0118] In the first mode, all gamma converters, first compensators, gamma converters, digital gamma converters, second compensators, and data converters can be activated.

[0119] In the first mode, the input image output from the processor can be supplied to the gamma converter.

[0120] In the second mode, at least one of the de-gamma converter, the first compensator, the gamma converter, the digital gamma converter, the second compensator, and the data converter can be deactivated.

[0121] In the second mode, the input image output from the processor can be supplied to the dithering unit.

[0122] The electronic device may also include a memory that stores at least one lookup table (LUT). Furthermore, the timing controller may include a memory interface that performs communication between the memory and the image processor.

[0123] In the first mode, the de-gamma converter, the first compensator, the gamma converter, the digital gamma converter, the second compensator, and the data converter can all communicate with the memory via the memory interface.

[0124] In the second mode, communication between at least one of the gamma converter, the first compensator, the gamma converter, the digital gamma converter, the second compensator, and the data converter and the memory can be stopped.

[0125] The memory may include a first lookup table for grayscale-luminance domain conversion of the input image. The memory may also include a second lookup table for luminance-grayscale domain conversion of the input image. The memory may further include a third lookup table for grayscale-voltage domain conversion of the input image. The memory may also include a fourth lookup table for voltage-grayscale domain conversion of the input image.

[0126] The first lookup table can be supplied to the gamma converter via the memory interface, the second lookup table can be supplied to the gamma converter via the memory interface, the third lookup table can be supplied to the digital gamma converter via the memory interface, and the fourth lookup table can be supplied to the data converter via the memory interface.

[0127] According to another aspect of this disclosure, an electronic device is provided. The electronic device includes a processor that generates an input image corresponding to a user's gaze. The electronic device also includes a display device comprising a timing controller and a display panel, the timing controller rearranging the input image to generate image data, and the display panel displaying the image based on the image data. The electronic device further includes a sensor that detects motion information corresponding to the user's gaze. The electronic device also includes a memory that stores at least one lookup table (LUT). The timing controller includes a mode controller that controls a driving mode of the display device based on the amount of change in motion information corresponding to changes in the user's gaze and the amount of change in the input image. The timing controller also includes an image processor that processes the input image. Communication between at least a portion of the plurality of modules included in the image processor and the memory is stopped according to the driving mode.

[0128] When the change in motion information is less than a first threshold or the change in the input image is less than a second threshold, the mode controller can drive the display device in a first mode. When the change in motion information is equal to or greater than the first threshold or the change in the input image is equal to or greater than the second threshold, the mode controller can drive the display device in a second mode.

[0129] In the first mode, all the multiple modules included in the image processor can communicate with the memory, and in the second mode, communication between at least some of the multiple modules included in the image processor and the memory can be stopped.

[0130] The memory may include a first lookup table for grayscale-luminance domain conversion of the input image. The memory may also include a second lookup table for luminance-grayscale domain conversion of the input image. The memory may further include a third lookup table for grayscale-voltage domain conversion of the input image. And the memory may also include a fourth lookup table for voltage-grayscale domain conversion of the input image.

[0131] The image processor may include a gamma converter that converts grayscale data of an input image into luminance data based on a first lookup table. The image processor may also include a first compensator that performs a first operation on the luminance data of the input image output from the gamma converter. The image processor may further include a gamma converter that converts the luminance data of the input image after the first operation has been performed into grayscale data based on a second lookup table. The image processor may also include a digital gamma converter that converts the grayscale data of the input image output from the gamma converter into voltage data based on a third lookup table. The image processor may further include a second compensator that performs a second operation on the voltage data of the input image output from the digital gamma converter. The image processor may further include a data converter that converts the voltage data of the input image after the second operation has been performed into grayscale data based on a fourth lookup table. The image processor may also include a dithering unit that performs dithering on the grayscale data of the input image output from the data converter.

Claims

1. A display device, comprising: A timing controller that generates image data based on an input image corresponding to the user's gaze; as well as A display panel that displays an image based on the image data. The timing controller includes: A mode controller receives motion information corresponding to the user's gaze, and controls a driving mode based on the amount of change in the motion information corresponding to the user's gaze change and the amount of change in the input image corresponding to the user's gaze change; and An image processor that processes the input image to generate the image data, and At least some of the multiple modules included in the image processor are activated or deactivated according to the driving mode.

2. The display device according to claim 1, wherein, In a first mode where the change in motion information is less than a first threshold or the change in the input image is less than a second threshold, all of the plurality of modules included in the image processor are activated. In a second mode where the change in motion information is equal to or greater than the first threshold and the change in the input image is equal to or greater than the second threshold, at least a portion of the plurality of modules included in the image processor are deactivated.

3. An electronic device, comprising: A processor that generates an input image corresponding to the user's gaze; The display device includes a timing controller and a display panel, wherein the timing controller rearranges the input image to generate image data, and the display panel displays the image based on the image data; as well as The sensor detects motion information corresponding to the user's gaze. The timing controller includes: A mode controller controls the driving mode of the display device based on changes in motion information corresponding to changes in the user's gaze and changes in the input image corresponding to changes in the user's gaze; and An image processor that processes the input image to generate the image data, and At least some of the multiple modules included in the image processor are activated or deactivated according to the driving mode.

4. The electronic device according to claim 3, wherein, When the change in motion information is less than a first threshold or the change in the input image is less than a second threshold, the mode controller drives the display device in a first mode; and when the change in motion information is equal to or greater than the first threshold and the change in the input image is equal to or greater than the second threshold, the mode controller drives the display device in a second mode.

5. The electronic device according to claim 4, wherein, In the first mode, all of the multiple modules included in the image processor are activated, and in the second mode, at least some of the multiple modules included in the image processor are deactivated.

6. The electronic device according to claim 4, wherein, The image processor includes: A gamma-de-converter that converts the grayscale data of the input image into luminance data; A first compensator performs a first operational process on the brightness data of the input image output from the gamma converter; A gamma converter that converts the brightness data of the input image, after the first operation has been performed, into grayscale data; A digital gamma converter that converts grayscale data of the input image output from the gamma converter into voltage data; A second compensator performs a second operational process on the voltage data of the input image output from the digital gamma converter; A data converter that converts the voltage data of the input image, after the second operation has been performed, into grayscale data; and A dithering unit performs dithering on the grayscale data of the input image output from the data converter.

7. The electronic device according to claim 6, wherein, In the first mode, the de-gamma converter, the first compensator, the gamma converter, the digital gamma converter, the second compensator, and the data converter are all activated.

8. The electronic device according to claim 6, wherein, In the first mode, the input image output from the processor is supplied to the gamma converter.

9. The electronic device according to claim 6, wherein, In the second mode, at least one of the de-gamma converter, the first compensator, the gamma converter, the digital gamma converter, the second compensator, and the data converter is deactivated.

10. The electronic device according to claim 6, wherein, In the second mode, the input image output from the processor is supplied to the jitter unit.

11. The electronic device according to claim 6, further comprising: The memory stores at least one lookup table (LUT). The timing controller further includes a memory interface, which performs communication between the memory and the image processor.

12. The electronic device according to claim 11, wherein, In the first mode, the de-gamma converter, the first compensator, the gamma converter, the digital gamma converter, the second compensator, and the data converter all communicate with the memory through the memory interface.

13. The electronic device according to claim 11, wherein, In the second mode, communication between at least one of the de-gamma converter, the first compensator, the gamma converter, the digital gamma converter, the second compensator, and the data converter and the memory is stopped.

14. The electronic device according to claim 11, wherein, The memory includes: A first lookup table for grayscale-luminance domain conversion of the input image; A second lookup table is used for the brightness-grayscale domain conversion of the input image; A third lookup table for grayscale-voltage domain conversion of the input image; and A fourth lookup table for voltage-grayscale domain conversion of the input image.

15. The electronic device according to claim 14, wherein, The first lookup table is supplied to the degamma converter via the memory interface, the second lookup table is supplied to the gamma converter via the memory interface, the third lookup table is supplied to the digital gamma converter via the memory interface, and the fourth lookup table is supplied to the data converter via the memory interface.

16. An electronic device comprising: A processor that generates an input image corresponding to the user's gaze; The display device includes a timing controller and a display panel, wherein the timing controller rearranges the input image to generate image data, and the display panel displays the image based on the image data; A sensor that detects motion information corresponding to the user's gaze; as well as The memory stores at least one lookup table (LUT). The timing controller includes: A mode controller controls the driving mode of the display device based on changes in motion information corresponding to changes in the user's gaze and changes in the input image corresponding to changes in the user's gaze; and An image processor that processes the input image to generate the image data, and Communication between at least some of the modules included in the image processor and the memory is enabled or disabled according to the driving mode.

17. The electronic device according to claim 16, wherein, When the change in motion information is less than a first threshold or the change in the input image is less than a second threshold, the mode controller drives the display device in a first mode; and when the change in motion information is equal to or greater than the first threshold and the change in the input image is equal to or greater than the second threshold, the mode controller drives the display device in a second mode.

18. The electronic device according to claim 17, wherein, In the first mode, all of the multiple modules included in the image processor communicate with the memory, and in the second mode, communication between at least a portion of the multiple modules included in the image processor and the memory is stopped.

19. The electronic device according to claim 17, wherein, The memory includes: A first lookup table for grayscale-luminance domain conversion of the input image; A second lookup table is used for the brightness-grayscale domain conversion of the input image; A third lookup table for grayscale-voltage domain conversion of the input image; and A fourth lookup table for voltage-grayscale domain conversion of the input image.

20. The electronic device according to claim 19, wherein, The image processor includes: A gamma-de-converter that converts the grayscale data of the input image into luminance data based on the first lookup table; A first compensator performs a first operational process on the brightness data of the input image output from the gamma converter; A gamma converter that converts the brightness data of the input image, to which the first operation has been performed, into grayscale data based on a second lookup table; A digital gamma converter that converts grayscale data of the input image output by the gamma converter into voltage data based on the third lookup table; A second compensator performs a second operational process on the voltage data of the input image output from the digital gamma converter; A data converter that converts the voltage data of the input image, after the second operation has been performed, into grayscale data based on the fourth lookup table; and A dithering unit performs dithering on the grayscale data of the input image output from the data converter.

Images