Electronic device

Abstract

An electronic device includes a first display panel, a second display panel, and a driving controller. The driving controller includes a memory, an accumulation unit that reads a previous accumulated signal from the memory and restores a left-eye accumulated signal and a right-eye accumulated signal, and a compensation unit that outputs a left-eye image signal based on a left-eye input signal and the left-eye accumulated signal and outputs a right-eye image signal according to a right-eye input signal and the right-eye accumulated signal. The accumulation unit generates a current signal based on an entirety of the left-eye image signal and a portion of the right-eye image signal or an entirety of the right-eye image signal and a portion of the left-eye image signal, and stores a current accumulated signal obtained by adding the previous accumulated signal to the current signal in the memory.

Description

[0001] Cross-references to related applications

[0002] This application claims priority to Korean Patent Application No. 10-2025-0054631, filed on April 25, 2025, with the Korean Intellectual Property Office, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to electronic devices for displaying images. Background Technology

[0004] Electronic devices such as televisions, mobile phones, tablet computers, navigation systems, and game consoles generate images and provide these images to users through display modules.

[0005] The display module of an electronic device includes multiple pixels and driving circuitry to control the image to be displayed in the multiple pixels. Each of the multiple pixels includes a light-emitting element and a transistor that controls the light-emitting element. The light-emitting element and transistor of each pixel may degrade over time. Summary of the Invention

[0006] This disclosure provides an electronic device capable of compensating for pixel degradation.

[0007] An embodiment of the electronic device includes a first display panel displaying an image corresponding to a left-eye image signal; a second display panel displaying an image corresponding to a right-eye image signal; and a drive controller receiving a left-eye input signal and a right-eye input signal and outputting a left-eye image signal and a right-eye image signal. The drive controller includes a memory; an accumulation unit reading previously accumulated signals from the memory to recover the left-eye and right-eye accumulated signals; and a compensation unit outputting a left-eye image signal based on the left-eye input signal and the left-eye accumulated signal, and outputting a right-eye image signal based on the right-eye input signal and the right-eye accumulated signal. The accumulation unit generates a current signal based on the entire left-eye image signal and a portion of the right-eye image signal, or the entire right-eye image signal and a portion of the left-eye image signal, and stores the current accumulated signal obtained by adding the previously accumulated signal to the current signal in the memory.

[0008] In this implementation, the current accumulated signal stored in the memory in the current frame can be provided to the accumulation unit as the previous accumulated signal in the next frame.

[0009] In this implementation, the compensation unit can add a left-eye compensation value to the left-eye input signal to generate a left-eye image signal, and can add a right-eye compensation value to the right-eye input signal to generate a right-eye image signal.

[0010] In this implementation, the left-eye image signal includes a first part and a second part, and the right-eye image signal includes a third part and a fourth part, and the second part of the left-eye image signal and the third part of the right-eye image signal may be the same as each other.

[0011] In this implementation, the accumulation unit can generate the current signal by combining the entire left-eye image signal and the fourth part of the right-eye image signal.

[0012] In an implementation, the left-eye image signal may correspond to the viewport viewed by the user's left eye, and the right-eye image signal may correspond to the viewport viewed by the user's right eye.

[0013] In an implementation, the accumulation unit can recover the portion corresponding to the entire left-eye image signal from the previously accumulated signals from the memory as the left-eye accumulated signal, and can recover the right-eye accumulated signal by combining the second portion of the left-eye image signal and the portion corresponding to the fourth portion of the right-eye image signal.

[0014] An embodiment of the electronic device includes: a first display panel for displaying an image corresponding to a left-eye image signal; a second display panel for displaying an image corresponding to a right-eye image signal; and a drive controller for receiving left-eye input signals and right-eye input signals, and outputting left-eye image signals and right-eye image signals, wherein the drive controller includes a memory; an image shifter for outputting shift information during a shifting mode; and a coordinate determiner for determining the shift position of the left-eye input signal and the shift position of the right-eye input signal based on the shift information, reading left-eye peripheral signals and right-eye peripheral signals from the memory based on the determined shift positions, and providing the left-eye peripheral signals and right-eye peripheral signals as left-eye shift signals and right-eye shift signals to the image shifter. The image shifter outputs left-eye image signals and right-eye image signals based on the left-eye shift signals and right-eye shift signals.

[0015] In this implementation, the coordinate determiner can receive the left-eye image signal and the right-eye image signal from the image shifter, and store the left-eye image signal and the right-eye image signal as the left-eye current signal and the right-eye current signal in the memory.

[0016] In an implementation, the shift information may include a shift enable flag that indicates the shift mode.

[0017] In an implementation, the shift information may further include the size and initial viewport position of each of the left-eye input signal and the right-eye input signal.

[0018] In an implementation, the shift information may further include the shift distance, shift period, and shift direction of each of the left-eye input signal and the right-eye input signal.

[0019] In this implementation, the memory stores image signals corresponding to a 360-degree image, and the coordinate determiner can read the left-eye peripheral signal and the right-eye peripheral signal from the image signals stored in the memory based on the determined shift position.

[0020] An embodiment of the electronic device includes a display panel comprising a first display area for displaying an image corresponding to a left-eye image signal and a second display area for displaying an image corresponding to a right-eye image signal; and a drive controller that receives a left-eye input signal and a right-eye input signal, and outputs a left-eye image signal and a right-eye image signal. The drive controller includes a memory; an accumulation unit that reads previously accumulated signals from the memory and recovers the left-eye accumulated signal and the right-eye accumulated signal; and a compensation unit that outputs a left-eye image signal based on the left-eye input signal and the left-eye accumulated signal, and outputs a right-eye image signal based on the right-eye input signal and the right-eye accumulated signal. The accumulation unit generates a current signal based on the entire left-eye image signal and a portion of the right-eye image signal, or the entire right-eye image signal and a portion of the left-eye image signal, and stores the current accumulated signal obtained by adding the previously accumulated signal to the current signal in the memory.

[0021] In this implementation, the current accumulated signal stored in the memory in the current frame can be provided to the accumulation unit as the previous accumulated signal in the next frame.

[0022] In one implementation, the compensation unit can add a left-eye compensation value to the left-eye input signal to generate a left-eye image signal, and add a right-eye compensation value to the right-eye input signal to generate a right-eye image signal.

[0023] In this implementation, the left-eye image signal includes a first part and a second part, and the right-eye image signal includes a third part and a fourth part, and the second part of the left-eye image signal and the third part of the right-eye image signal may be the same as each other.

[0024] In this implementation, the accumulation unit can generate the current signal by combining the entire left-eye image signal and the fourth part of the right-eye image signal.

[0025] In an implementation, the left-eye image signal may correspond to the viewport viewed by the user's left eye, and the right-eye image signal may correspond to the viewport viewed by the user's right eye.

[0026] In an implementation, the accumulation unit can recover the portion corresponding to the entire left-eye image signal from the previously accumulated signals from the memory as the left-eye accumulated signal, and can recover the right-eye accumulated signal by combining the second portion of the left-eye image signal and the portion corresponding to the fourth portion of the right-eye image signal. Attached Figure Description

[0027] Figure 1 This is a block diagram of an electronic device according to an embodiment.

[0028] Figure 2 These are schematic diagrams of electronic devices according to various embodiments.

[0029] Figure 3 This is a front view of an electronic device according to an embodiment of the present disclosure.

[0030] Figure 4 This is a block diagram illustrating a display module according to an embodiment of the present disclosure.

[0031] Figure 5 This is a block diagram of a drive controller according to an embodiment of the present disclosure.

[0032] Figure 6A This is a diagram showing examples of left-eye and right-eye image signals.

[0033] Figure 6B yes Figure 6A The image shows an overlay view of the left-eye and right-eye image signals.

[0034] Figure 7 This is a block diagram of a drive controller according to an embodiment of the present disclosure.

[0035] Figure 8 Examples of left-eye image signals corresponding to left-eye input signals and right-eye image signals corresponding to right-eye input signals are shown.

[0036] Figure 9 This is a diagram illustrating an electronic device according to an embodiment of the present disclosure. Detailed Implementation

[0037] In this specification, it will be understood that when an element (or region, layer, part, etc.) is referred to as being “on”, “connected to” or “attached to” another element, it may be directly arranged on, directly connected to or attached to another element or layer, or other elements may be arranged between them.

[0038] The same reference numerals or symbols always denote the same elements. In the accompanying drawings, the thickness, scale, and dimensions of the elements are exaggerated in order to effectively describe the technical content.

[0039] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements are not limited by these terms. These terms are used only to distinguish one element from another. For example, a first element discussed below may be referred to as a second element without departing from the scope of the inventive concept. Similarly, a second element may be referred to as a first element. In this specification, the singular expressions “a,” “an,” and “described” are also intended to include the plural forms unless the context clearly indicates otherwise.

[0040] Furthermore, the terms "below," "under," "on the lower side," "above," "above," "on the upper side," etc., can be used to describe the relationships between the elements shown in the accompanying drawings. These terms are relative concepts and are described based on the directions indicated in the drawings.

[0041] It will also be understood that when the terms “comprising,” “including,” and “have,” as well as variations such as “including,” “containing,” and “having,” are used in this specification, they specify the presence of the stated features, numbers, steps, operations, elements, components, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof.

[0042] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. It will also be understood that terms such as those defined in common dictionaries shall be interpreted as having a meaning consistent with their meaning in the context of the relevant art and shall not be interpreted as having an idealized or overly formal meaning unless expressly defined herein.

[0043] In the following description, embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0044] Figure 1 This is a block diagram of the electronic device 10 according to an embodiment.

[0045] refer to Figure 1 The electronic device 10 according to the embodiment may include a display module DM, a processor PP, a memory MM, and a power module PM.

[0046] The processor PP may include at least one of a central processing unit (CPU), an application processor (AP), a graphics processing unit (GPU), a communication processor (CP), an image signal processor (ISP), and a controller.

[0047] The memory MM can store the data information required for the operation of the processor PP or the display module DM. When the processor PP executes the application stored in the memory MM, image data signals and input control signals can be sent to the display module DM, and the display module DM can process the received signals and output image information through the display screen.

[0048] The power module PM may include a power supply module such as a power adapter or battery device, and a power conversion module that converts the power supplied by the power supply module to generate the power required for the operation of the electronic device 10.

[0049] Figure 2 These are schematic diagrams of electronic devices according to various embodiments.

[0050] refer to Figure 2 Various electronic devices according to the embodiments may include electronic devices for displaying images (such as smartphones 10_1a, tablet PCs 10_1b, laptops 10_1c, TVs 10_1d, and desktop monitors 10_1e, etc.), as well as wearable electronic devices including display modules (such as smart glasses 10_2a, head-mounted displays 10_2b, smartwatches 10_2c, etc.), and electronic devices 10_3 for vehicles including display modules (such as CID (central information display) arranged on the dashboard, center console, and instrument panel of a vehicle, interior mirror displays, etc.).

[0051] Figure 3 An electronic device according to an embodiment of the present disclosure is shown.

[0052] exist Figure 3 The present invention includes smart glasses as an example of electronic device 10, but this disclosure is not limited thereto.

[0053] refer to Figure 3 The electronic device 10 can be used to implement augmented reality or virtual reality. For augmented reality, the electronic device 10 can provide virtual graphics and images through a semi-transparent display. In this case, the user can simultaneously view virtual graphics and images and real objects. For virtual reality, the electronic device 10 can provide virtual graphics and images. The user can experience virtual reality through virtual content.

[0054] The electronic device 10 includes a first display panel DP1 and a second display panel DP2. However, this disclosure is not limited thereto. The electronic device 10 may include a single display panel that is not divided into a first display panel DP1 and a second display panel DP2. In this case, the display panel may be divided into a first display area and a second display area.

[0055] Figure 4This is a diagram illustrating a display module DM according to an embodiment of the present disclosure.

[0056] The display module DM includes a drive controller 100, a first display panel DP1, and a second display panel DP2. The drive controller 100 receives a left-eye input signal L_IN and a right-eye input signal R_IN. The left-eye input signal L_IN and the right-eye input signal R_IN can be received from... Figure 1 The processor PP shown is provided.

[0057] The drive controller 100 can output left-eye image signal L_DATA and right-eye image signal R_DATA, respectively, corresponding to the left-eye input signal L_IN and the right-eye input signal R_IN.

[0058] In one implementation, the drive controller 100 can accumulate the left-eye image signal L_DATA and the right-eye image signal R_DATA, and predict the degree of degradation of pixels in the first display panel DP1 and the second display panel DP2 based on the accumulated left-eye image signal L_DATA and the accumulated right-eye image signal R_DATA.

[0059] The drive controller 100 corrects the left-eye input signal L_IN and the right-eye input signal R_IN based on the predicted degree of degradation, so as to output the left-eye image signal L_DATA and the right-eye image signal R_DATA.

[0060] Figure 5 This is a block diagram of a drive controller 100 according to an embodiment of the present disclosure.

[0061] refer to Figure 5 The drive controller 100 includes a compensation unit 110, an accumulation unit 120, and a memory 130. The compensation unit 110 and the accumulation unit 120 may be implemented by one or more integrated circuits.

[0062] The compensation unit 110 receives the left eye input signal L_IN and the right eye input signal R_IN, and outputs the left eye image signal L_DATA and the right eye image signal R_DATA.

[0063] The compensation unit 110 can output a left-eye image signal L_DATA based on the left-eye input signal L_IN and the left-eye accumulated signal LAC provided by the accumulation unit 120, and output a right-eye image signal R_DATA based on the right-eye input signal R_IN and the right-eye accumulated signal RAC provided by the accumulation unit 120. The compensation unit 110 can calculate left-eye compensation values ​​and right-eye compensation values ​​based on the left-eye accumulated signal LAC and the right-eye accumulated signal RAC provided by the accumulation unit 120. The compensation unit 110 can add the left-eye compensation values ​​and right-eye compensation values ​​to the left-eye input signal L_IN and the right-eye input signal R_IN respectively, and output the left-eye image signal L_DATA and the right-eye image signal R_DATA.

[0064] When the left-eye input signal L_IN and the right-eye input signal R_IN are input, the accumulation unit 120 reads the previously accumulated signal PACC corresponding to the left-eye input signal L_IN and the right-eye input signal R_IN from the memory 130. The accumulation unit 120 can restore the previously accumulated signal PACC to the left-eye accumulated signal LACC and the right-eye accumulated signal RACC, and provide the restored left-eye accumulated signal LACC and the restored right-eye accumulated signal RACC to the compensation unit 110.

[0065] Accumulation unit 120 generates a current signal based on the left-eye image signal L_DATA and the right-eye image signal R_DATA output from compensation unit 110, and adds the previous accumulated signal PACC to the current signal to calculate the current accumulated signal CACC. Accumulation unit 120 stores the current accumulated signal CACC in memory 130.

[0066] Figure 4 Each of the first display panel DP1 and the second display panel DP2 shown includes a pixel. A pixel includes a light-emitting element and multiple transistors. The light-emitting element and multiple transistors may degrade over time. In particular, light-emitting elements such as light-emitting diodes may degrade due to various operating conditions such as operating time, the displayed grayscale level (or brightness), ambient temperature, and ambient brightness. When the characteristics of a pixel degrade, an afterimage phenomenon may occur where the previous image affects the next image.

[0067] The compensation unit 110 can pre-store compensation values ​​in a storage device, such as a lookup table, based on the deteriorating environment (e.g., operating time and displayed grayscale level). Information about the deteriorating environment can be provided by the accumulation unit 120. The previously accumulated signal PACC provided from the accumulation unit 120 can be information about the deteriorating environment.

[0068] Figure 6A This is a diagram showing an example of the left-eye image signal L_DATA and the right-eye image signal R_DATA.

[0069] Reference Appendix Figure 4 and Figure 6A The left-eye image signal L_DATA is the image signal to be displayed on the first display panel DP1. The left-eye image signal L_DATA may include the image signal of the area defined by point L1 and point L2. The position of point L1 can be represented by L1(X1, Y1), and the position of point L2 can be represented by L2(X2, Y2).

[0070] The right-eye image signal R_DATA is the image signal to be displayed on the second display panel DP2. The right-eye image signal R_DATA may include the image signal of the area defined by point R1 and point R2. The position of point R1 can be represented by R1(X3, Y3), and the position of point R2 can be represented by R2(X4, Y4).

[0071] In order to display a three-dimensional (3D) image on the electronic device 10, it is necessary to use location information (or area information) of the position viewed by the user and information about the image signal of the area to be displayed. The location information (or area information) may include the location information of points L1, L2, R1 and R2, namely, L1(X1, Y1), L2(X2, Y2), R1(X3, Y3) and R2(X4, Y4).

[0072] The region defined by position information L1(X1, Y1), L2(X2, Y2), R1(X3, Y3), and R2(X4, Y4) can be defined as the region viewed by the user, i.e., the viewport. Position information L1(X1, Y1) and L2(X2, Y2) correspond to the viewport viewed by the left eye, and position information R1(X3, Y3) and R2(X4, Y4) correspond to the viewport viewed by the right eye. In other words, the left-eye image signal L_DATA corresponds to the viewport viewed by the user's left eye, and the right-eye image signal R_DATA corresponds to the viewport viewed by the user's right eye.

[0073] Figure 6B It is shown Figure 6A The diagram shows the superposition of the left-eye image signal L_DATA and the right-eye image signal R_DATA.

[0074] refer to Figure 4 and Figure 6BThe left-eye image signal L_DATA includes a first part LD1 and a second part LD2. The right-eye image signal R_DATA includes a first part RD1 and a second part RD2. The second part LD2 of the left-eye image signal L_DATA and the first part RD1 of the right-eye image signal R_DATA are identical. When the identical second part LD2 of the left-eye image signal L_DATA and the first part RD1 of the right-eye image signal R_DATA overlap, only the first part LD1 of the left-eye image signal L_DATA and the second part RD2 of the right-eye image signal R_DATA are different from each other.

[0075] like Figure 5 As shown, the accumulation unit 120 generates a current signal based on the left-eye image signal L_DATA and the right-eye image signal R_DATA output from the compensation unit 110, and adds the previous accumulation signal PACC to the current signal to calculate the current accumulation signal CACC. The accumulation unit 120 stores the current accumulation signal CACC in the memory 130.

[0076] If the same portion of the left-eye image signal L_DATA and the right-eye image signal R_DATA is stored in memory 130 only once, the size of the signal stored in memory 130 can be reduced. As a result, the size of memory 130 can be minimized.

[0077] In one implementation, the accumulation unit 120 combines a second portion RD2 of the entire left-eye image signal L_DATA and the right-eye image signal R_DATA that is different from the left-eye image signal L_DATA, or a first portion LD1 of the entire right-eye image signal R_DATA and the left-eye image signal L_DATA that is different from the right-eye image signal R_DATA, to generate the current signal CC. In the following description, the accumulation unit 120 combining the entire left-eye image signal L_DATA and the second portion RD2 of the right-eye image signal R_DATA that is different from the left-eye image signal L_DATA to generate the current signal CC is used as an example.

[0078] Accumulation unit 120 adds the previously accumulated signal PACC, which is read from memory 130, to the current signal CC to calculate the current accumulated signal CACC. The current accumulated signal CACC is stored in memory 130.

[0079] The current accumulated signal CACC stored in memory 130 in the current frame can be provided to the accumulation unit 120 as the previous accumulated signal PACC in the next frame.

[0080] exist Figure 6BThe diagram shows that the accumulation unit 120 generates the entire left-eye image signal L_DATA and the second part RD2 of the right-eye image signal R_DATA as the current signal CC, but this disclosure is not limited thereto. The accumulation unit 120 may generate the first part LD1 of the left-eye image signal L_DATA and the entire right-eye image signal R_DATA as the current signal CC.

[0081] When the left-eye input signal L_IN and the right-eye input signal R_IN are received, the accumulation unit 120 can read the previously accumulated signal PACC stored in the memory 130 and restore the previously accumulated signal PACC to the left-eye accumulated signal LACC and the right-eye accumulated signal RACC. The accumulation unit 120 can restore the left-eye accumulated signal LACC to the portion of the previously accumulated signal PACC read from the memory 130 that corresponds to the entire left-eye image signal L_DATA. The accumulation unit 120 can combine the second part LD2 of the left-eye image signal L_DATA and the second part RD2 of the right-eye image signal R_DATA in the previously accumulated signal PACC read from the memory 130 to restore it to the right-eye accumulated signal RACC.

[0082] Figure 7 This is a block diagram of a drive controller 100-1 according to an embodiment of the present disclosure.

[0083] refer to Figure 4 and Figure 7 The drive controller 100-1 includes an image shifter 210, a coordinate determiner 220, and a memory 230. The image shifter 210 and the coordinate determiner 220 can be implemented by one or more integrated circuits.

[0084] Image shifter 210 receives left-eye input signal L_IN and right-eye input signal R_IN, and outputs left-eye image signal L_DATA and right-eye image signal R_DATA.

[0085] The left-eye image signal L_DATA and the right-eye image signal R_DATA can be provided to the first display panel DP1 and the second display panel DP2. After a specific image has been displayed for a long time on each of the first display panel DP1 and the second display panel DP2, when another image is displayed, the user can visually identify the afterimage phenomenon in which the previously displayed specific image affects the current image. The image shifter 210 can receive the left-eye input signal L_IN and the right-eye input signal R_IN, and when it is determined that image shifting is needed (e.g., when each of the left-eye input signal L_IN and the right-eye input signal R_IN is the same for a preset time), the operation mode is set to shift mode.

[0086] During the shift mode, image shifter 210 provides shift information INFO to coordinate determiner 220. Image shifter 210 can output left-eye image signal L_DATA and right-eye image signal R_DATA based on the left-eye shift signal LSFT_DATA and right-eye shift signal RSFT_DATA provided from coordinate determiner 220, wherein the left-eye input signal L_IN and right-eye input signal R_IN are shifted by a predetermined distance in a predetermined direction.

[0087] Coordinate determiner 220 receives the left-eye input signal L_IN and the right-eye input signal R_IN, and receives shift information INFO from image shifter 210. Coordinate determiner 220 determines the shift positions of the left-eye input signal L_IN and the right-eye input signal R_IN based on the shift information INFO. Based on the determined shift positions, coordinate determiner 220 reads the left-eye peripheral signal LP_DATA and the right-eye peripheral signal RP_DATA from memory 230. Coordinate determiner 220 can provide the left-eye peripheral signal LP_DATA and the right-eye peripheral signal RP_DATA read from memory 230 as the left-eye shift signal LSFT_DATA and the right-eye shift signal RSFT_DATA to image shifter 210.

[0088] The coordinate determiner 220 receives the left-eye image signal L_DATA and the right-eye image signal R_DATA output from the image shifter 210. The coordinate determiner 220 can store the left-eye image signal L_DATA and the right-eye image signal R_DATA as the left-eye current signal LC_DATA and the right-eye current signal RC_DATA in the memory 230.

[0089] In an implementation, the shift information INFO provided from the image shifter 210 to the coordinate determiner 220 may include a shift enable flag Shift_enable_flag, the dimensions L_Resoution_xy and R_Resoution_xy of each of the left-eye input signal L_IN and the right-eye input signal R_IN, the initial viewport positions L_Init_viewpoint_xy and R_Init_viewpoint_xy, the shift distance Shift_delta, the shift cycle Shift_cycle, and the shift direction Shift_direction of each of the left-eye input signal L_IN and the right-eye input signal R_IN.

[0090] During the shift mode of a shifted image, the shift enable flag Shift_enable_flag can be '1'. When the image is not shifted, the shift enable flag Shift_enable_flag can be '0'.

[0091] The shift distance (Shift_delta) indicates the amount by which the left-eye input signal (L_IN) and the right-eye input signal (R_IN) are shifted. The shift cycle (Shift_cycle) indicates the frequency of the shift (e.g., every few frames). The shift direction (Shift_direction) indicates the direction of image movement and can be any one of left, right, top, bottom, left + top, left + bottom, right + top, and right + bottom.

[0092] In this implementation, at least one of the shift distance Shift_delta, shift period Shift_cycle, and shift direction Shift_direction can always have a constant value. The shift information INFO provided from the image shifter 210 to the coordinate determiner 220 may not include information about the shift distance Shift_delta, shift period Shift_cycle, and shift direction Shift_direction, which always have constant values. In this case, the coordinate determiner 220 can calculate the shift positions of the left-eye input signal L_IN and the right-eye input signal R_IN based on preset shift distance Shift_delta, shift period Shift_cycle, and shift direction Shift_direction.

[0093] For both the left-eye and right-eye images, the shift distance Shift_delta, shift period Shift_cycle, and shift direction Shift_direction can have the same values. However, this disclosure is not limited thereto. When the shift distance Shift_delta, shift period Shift_cycle, and shift direction Shift_direction for the left-eye and right-eye images are different from each other, the shift information INFO can include the shift distance Shift_delta, shift period Shift_cycle, and shift direction Shift_direction for the left-eye and right-eye images, respectively.

[0094] Figure 8 Examples of the left-eye image signal L_DATA corresponding to the left-eye input signal L_IN and the right-eye image signal R_DATA corresponding to the right-eye input signal R_IN are shown.

[0095] Reference Appendix Figure 7 and Figure 8 The left eye input signal L_IN corresponds to the viewport defined by points L1 and L2, and the right eye input signal R_IN corresponds to the viewport defined by points R1 and R2.

[0096] During shift mode, the shift enable flag Shift_enable_flag of the shift information INFO provided from the image shifter 210 to the coordinate determiner 220 is '1'.

[0097] The dimensions L_Resoution_xy and R_Resoution_xy of the left-eye and right-eye images of the 3D image can be the length of the first direction DR1 of the first display panel DP1 corresponding to the left-eye input signal L_IN and the length of the second direction DR2 of the second display panel DP2 corresponding to the right-eye input signal R_IN, respectively.

[0098] In one implementation, the image shifter 210 can divide each of the left-eye input signal L_IN and the right-eye input signal R_IN into multiple blocks, and shift each of the left-eye input signal L_IN and the right-eye input signal R_IN in blocks. In this case, the dimensions L_Resoution_xy and R_Resoution_xy can correspond to the block size of the left-eye input signal L_IN and the right-eye input signal R_IN, respectively.

[0099] The initial viewport positions L_Init_viewpoint_xy and R_Init_lookpoint_xy of the left and right eye images can indicate points L1 and L2 of the left eye input signal L_IN and points R1 and R2 of the right eye input signal R_IN.

[0100] The shift distance Shift_delta can include the distances by which points L1 and L2 of the left-eye input signal L_IN are moved to points L3 and L4 of the left-eye image signal L_DATA, and the distances by which points R1 and R2 of the right-eye input signal R_IN are moved to points R3 and R4 of the right-eye image signal R_DATA. Figure 8 In the example shown, the shift distance Shift_delta may include coordinate values ​​indicating the distance between points L1 and L2 of the left eye input signal L_IN and points L3 and L4 of the left eye image signal L_DATA, as well as coordinate values ​​indicating the distance between points R1 and R2 of the right eye input signal R_IN and points R3 and R4 of the right eye image signal R_DATA.

[0101] exist Figure 8 In the example shown, the shift direction of the left-eye input signal L_IN and the right-eye input signal R_IN to the left-eye image signal L_DATA and the right-eye image signal R_DATA is right + down, that is, the diagonal direction between the first direction DR1 and the second direction DR2.

[0102] If the left-eye input signal L_IN is a two-dimensional (2D) image signal and point L1 of the left-eye input signal L_IN corresponds to coordinates (1, 1) of the first display panel DP1, then separate calculations may be needed to generate the image signal between points L2 and L4 to move the left-eye input signal L_IN to the left-eye image signal L_DATA. This is because there is no left-eye input signal L_IN in the row following the row where point L2 is located. In this case, the image shifter 210 should calculate the left-eye input signal L_IN for the row following the row where point L2 is located based on the left-eye output signal L_IN through averaging, scaling, etc.

[0103] In the electronic device 10 for displaying three-dimensional (3D) images (see Figure 3 In the memory 230, the 360-degree image signal is stored. The 360-degree image includes the image outside the viewport and the image displayed on the first display panel DP1 and the second display panel DP2. Therefore, separate calculations are not required to convert the left-eye input signal L_IN and the right-eye input signal R_IN into the left-eye image signal L_DATA and the right-eye image signal R_DATA.

[0104] Figure 9 This is a diagram illustrating an electronic device 10-1 according to an embodiment of the present disclosure.

[0105] Figure 9 A head-mounted device is shown as an example of electronic device 10-1. The user US can wear electronic device 10-1 on his / her head. Electronic device 10-1 can provide images even when the user US's actual peripheral vision is obstructed. The user US wearing the head-mounted device (HMD) can more easily immerse himself in virtual reality.

[0106] Electronic device 10-1 includes a display panel DP. The display panel DP includes a first display area DA_L corresponding to the left eye of user US and a second display area DA_R corresponding to the right eye of user US.

[0107] In an embodiment, the electronic device 10-1 may include Figures 4 to 6B The drive controller 100 is described in the text.

[0108] In an embodiment, the electronic device 10-1 may include Figures 7 to 8 The drive controller 100-1 described in the document.

[0109] The drive controller of electronic device 10-1 can receive the left-eye input signal L_IN and the right-eye input signal R_IN, and output the left-eye image signal L_DATA and the right-eye image signal R_DATA. Because electronic device 10-1 and... Figure 3The electronic device 10 shown operates similarly, so redundant descriptions will be omitted.

[0110] Electronic devices with this configuration can compensate for pixel degradation, thereby preventing display quality degradation. Furthermore, pixel degradation in electronic devices displaying 3D images can be compensated for. Moreover, by storing the overlapping image signal between the left-eye and right-eye image signals used to compensate for pixel degradation only once, the required memory size can be minimized.

[0111] The electronic device for displaying 3D images of the present invention can shift the displayed image to prevent afterimages. In particular, since the image can be shifted with reference to the 3D image signal stored in memory, no separate calculation for shifting the image is required.

[0112] While this disclosure has been described above with reference to embodiments thereof, those skilled in the art will understand that various modifications and changes can be made to this disclosure without departing from the spirit and scope of the disclosure as set forth in the appended claims. Therefore, the scope of this disclosure should not be limited to what is described in the detailed description of the specification, but should be determined by the claims.

Claims

1. Electronic devices, including: The first display panel displays the image corresponding to the left eye image signal; The second display panel displays the image corresponding to the right eye image signal; as well as The drive controller receives the left-eye input signal and the right-eye input signal, and outputs the left-eye image signal and the right-eye image signal. The drive controller includes: Memory; The accumulation unit reads previously accumulated signals from the memory to recover the left-eye and right-eye accumulated signals; and The compensation unit outputs the left-eye image signal based on the left-eye input signal and the left-eye accumulated signal, and outputs the right-eye image signal based on the right-eye input signal and the right-eye accumulated signal. The accumulation unit generates a current signal based on the whole of the left-eye image signal and a part of the right-eye image signal, or the whole of the right-eye image signal and a part of the left-eye image signal, and stores the current accumulated signal obtained by adding the previous accumulated signal to the current signal in the memory.

2. The electronic device according to claim 1, wherein, The current accumulated signal stored in the memory in the current frame is provided to the accumulation unit as the previous accumulated signal in the next frame.

3. The electronic device according to claim 1, wherein, The compensation unit adds a left-eye compensation value to the left-eye input signal to generate the left-eye image signal, and adds a right-eye compensation value to the right-eye input signal to generate the right-eye image signal.

4. The electronic device according to claim 1, in, The left eye image signal includes a first part and a second part. The right eye image signal includes a third part and a fourth part, and The second part of the left-eye image signal is identical to the third part of the right-eye image signal.

5. The electronic device according to claim 4, wherein, The accumulation unit generates the current signal by combining the entire left-eye image signal and the fourth portion of the right-eye image signal, and The left-eye image signal corresponds to the viewport viewed by the user's left eye, and the right-eye image signal corresponds to the viewport viewed by the user's right eye.

6. The electronic device according to claim 5, wherein, The accumulation unit recovers the portion corresponding to the whole of the left-eye image signal from the previously accumulated signal from the memory as the left-eye accumulated signal, and recovers the right-eye accumulated signal by combining the second portion of the left-eye image signal and the portion corresponding to the fourth portion of the right-eye image signal.

7. Electronic devices, including: The first display panel is used to display the image corresponding to the left eye image signal; The second display panel is used to display the image corresponding to the right eye image signal; as well as The drive controller receives the left-eye input signal and the right-eye input signal, and outputs the left-eye image signal and the right-eye image signal. The drive controller includes: Memory; An image shifter that outputs shift information during shift mode; and A coordinate determiner determines the shift positions of the left-eye input signal and the right-eye input signal based on the shift information. Based on the determined shift positions, it reads the left-eye peripheral signal and the right-eye peripheral signal from the memory and provides these signals as left-eye shift signals and right-eye shift signals to the image shifter. The image shifter outputs the left-eye image signal and the right-eye image signal based on the left-eye shift signal and the right-eye shift signal.

8. The electronic device according to claim 7, wherein, The coordinate determiner receives the left-eye image signal and the right-eye image signal from the image shifter, and stores the left-eye image signal and the right-eye image signal as the left-eye current signal and the right-eye current signal in the memory.

9. The electronic device according to claim 7, wherein, The shift information includes a shift enable flag that indicates the shift mode. The shift information further includes the size and initial viewport position of each of the left-eye input signal and the right-eye input signal, and The shift information further includes the shift distance, shift period, and shift direction of each of the left-eye input signal and the right-eye input signal.

10. Electronic devices, including: The display panel includes a first display area for displaying an image corresponding to the left-eye image signal and a second display area for displaying an image corresponding to the right-eye image signal; as well as The drive controller receives the left-eye input signal and the right-eye input signal, and outputs the left-eye image signal and the right-eye image signal. The drive controller includes: Memory; The accumulation unit reads previously accumulated signals from the memory and recovers the left-eye and right-eye accumulated signals; and The compensation unit outputs the left-eye image signal based on the left-eye input signal and the left-eye accumulated signal, and outputs the right-eye image signal based on the right-eye input signal and the right-eye accumulated signal. The accumulation unit generates a current signal based on the whole of the left-eye image signal and a part of the right-eye image signal, or the whole of the right-eye image signal and a part of the left-eye image signal, and stores the current accumulated signal obtained by adding the previous accumulated signal to the current signal in the memory.

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