Wearable device and method for displaying image on basis of bit sequences having different bit depths

Abstract

A wearable device is provided. The wearable device may include a display including a driving layer formed on a silicon substrate and a light-emitting layer on the driving layer. The wearable device may comprise a processor. The display may be configured to receive information about an image from the processor through the driving layer. The display may be configured to use each of first bit sequences to cause each of first light-emitting elements in the light-emitting layer to emit light according to a pulse width modulation (PWM) technique, wherein the first light-emitting elements ensure displaying of a first portion of the image to be recognized by foveal vision of a user wearing the wearable device. The display may be configured to use each of second bit sequences to cause each of second light-emitting elements in the light-emitting layer to emit light according to the PWM technique, wherein the second light-emitting elements ensure displaying of a second portion of the image to be recognized by peripheral vision of the user.

Description

Wearable device and method for displaying images based on bit sequences having different bit depths

[0001] The descriptions below relate to a wearable device and method for displaying an image based on bit sequences having different bit depths.

[0002] A wearable device may be used to provide augmented reality (AR) services, virtual reality (VR) services, mixed reality (MR) services, or extended reality (XR) services. For example, the wearable device may include a display positioned relatively close to a user's eyes. For example, the display may have a relatively narrow size. For example, the display may include a driving layer formed on a silicon substrate and a light-emitting layer positioned on the driving layer and including a plurality of light-emitting elements to provide a relatively high resolution.

[0003] The above information may be provided as background art to aid in understanding the present disclosure. No claim or determination is made as to whether any of the above is applicable as prior art related to the present disclosure.

[0004] A wearable device is provided. The wearable device may include a display including a driving layer formed on a silicon substrate and an emitting layer on the driving layer. The wearable device may include a processor. The display may be configured to receive information about an image from the processor through the driving layer. The display may be configured to cause each of first light-emitting elements in the emitting layer to emit light according to a pulse width modulation (PWM) technique for displaying a first portion of the image identified according to a gaze of a user wearing the wearable device using each of first bit sequences. The display may be configured to cause each of second light-emitting elements in the emitting layer to emit light according to the PWM technique for displaying a second portion of the image around the first portion using each of second bit sequences. The display may be configured to display the image based on the emission of each of the first light-emitting elements and the emission of each of the second light-emitting elements. The bit depth of each of the first bit sequences may be higher than the bit depth of each of the second bit sequences.

[0005] A method is provided. The method can be executed for displaying a wearable device including a processor. The method can include receiving information about an image from the processor. The method can include emitting light, respectively, from first light-emitting elements within a light-emitting layer of a display of the wearable device, according to a pulse width modulation (PWM) technique, for displaying a first portion of the image identified according to a gaze of a user wearing the wearable device, using each of first bit sequences. The method can include emitting light, respectively, from second light-emitting elements within the light-emitting layer, according to the PWM technique, for displaying a second portion of the image around the first portion, using each of second bit sequences. The method can include displaying the image based on the emission of each of the first light-emitting elements and the emission of each of the second light-emitting elements. A bit depth of each of the first bit sequences can be higher than a bit depth of each of the second bit sequences.

[0006] Figure 1 is a simplified block diagram of an exemplary wearable device.

[0007] Figure 2 illustrates a display of an exemplary wearable device.

[0008] FIG. 3a illustrates an example of displaying an image based on first bit sequences and second bit sequences.

[0009] FIG. 3b illustrates an example in which each of the first light-emitting elements emits light using each of the first bit sequences and each of the second light-emitting elements emits light using each of the second bit sequences.

[0010] FIG. 4A illustrates an example of obtaining each of the first bit sequences by adding one or more bits obtained from a memory to each of the first set of bit sequences obtained from some of a plurality of memory cells.

[0011] Figure 4b illustrates an example of obtaining each of the second bit sequences from a different portion of a plurality of memory cells.

[0012] FIG. 5a illustrates an example of storing each of the first bit sequences obtained using the first circuit into a memory cell and memory through the second circuit.

[0013] Figure 5b illustrates an example of storing each of the second bit sequences in a memory cell through a second circuit.

[0014] FIG. 6a illustrates an example of storing each of the first bit sequences in a memory cell and memory through a second circuit.

[0015] FIG. 6b illustrates an example of storing each of the second bit sequences in a memory cell and memory through a second circuit.

[0016] FIG. 7a illustrates an example of storing each of the bit sequences of the first set into a memory cell through the first circuit as each of the first bit sequences.

[0017] FIG. 7b illustrates an example of storing each of the second bit sequences obtained by removing one or more bits from each of the second set of bit sequences in a memory cell through the first circuit.

[0018] FIG. 8 is a block diagram of an electronic device within a network environment according to various embodiments.

[0019] FIG. 9 is a block diagram of a display module according to various embodiments.

[0020] A wearable device may be used to provide augmented reality (AR) services, virtual reality (VR) services, mixed reality (MR) services, and / or extended reality (XR) services. For example, the wearable device may be worn on a part of the user's body (e.g., the head and / or face) as AR glasses, a video see-through (VST) device, or a VR device. For example, the wearable device may include a display positioned in front of the user's eyes when worn by the user. For example, the display may be used to display images (or content) for the AR service, the VR service, the MR service, and / or the XR service. For example, since the wearable device is worn on a part of the user's body, operations of the display to reduce power consumption due to displaying the images may be executed within the wearable device. The wearable device may include components for executing the operations. The above components can be exemplified within the description of Fig. 1.

[0021] Figure 1 is a simplified block diagram of an exemplary wearable device.

[0022] Referring to FIG. 1, a wearable device (100) may include a processor (110) and a display (120).

[0023] For example, the processor (110) may be used to generate, obtain, and / or render an image, a screen, and / or content to be displayed on the display (120). For example, the processor (110) may provide and / or transmit the image, the screen, and / or the content to the display (120). For example, the processor (110) may provide and / or transmit data, information, signals, commands, and / or instructions for processing related to the image, the screen, and / or the content to the display (120). As a non-limiting example, the data, the information, the signals, the commands, and / or the instructions may represent a portion of the image (e.g., a first portion of the image as exemplified below) that has visual characteristics that differ from the visual characteristics of another portion of the image (e.g., a second portion of the image as exemplified below). For example, the data, the information, the signal, the command, and / or the instruction may include address information of the portion of the image.

[0024] For example, the processor (110) may include at least a portion of the processor (820) of FIG. 8, or may correspond to at least a portion of the processor (820) of FIG. 8. For example, the processor (110) may be operatively coupled with the display (120). For example, the processor (110) being operatively coupled with the display (120) may indicate that the processor (110) is connected to the display (120) via an interface (112). For example, the interface (112) may be used to transmit the image, the screen, the content, the data, the information, the signal, the command, and / or the instruction transmitted from the processor (110) to the display (120). As a non-limiting example, the interface (112) may include a mobile industry processor interface (MIPI). For example, operatively coupling a processor (110) with a display (120) may indicate that the display (120) is controlled by the processor (110). As a non-limiting example, the processor (110) may control the display (120) based on a video mode of a display serial interface (DSI).

[0025] For example, the display (120) may be used to display the image, the screen, and / or the content. For example, the image, the screen, and / or the content may be displayed based on processing of the display (120) executed based on the data, the information, the signal, the command, and / or the instruction.

[0026] For example, the display (120) may include a display area positioned in front of the user's eyes when the wearable device (100) is worn by the user. For example, since the display area is generally positioned closer to the user's eyes than the display area of ​​a display of a handheld device such as a smartphone, the size of the display area of ​​the display (120) may be smaller than the size of the display area of ​​the display of the handheld device. For example, since the size of the display area of ​​the display (120) is smaller than the size of the display area of ​​the display of the handheld device, the level of integration of the pixels (or subpixels) of the display (120) may be higher than the level of integration of the pixels (or subpixels) of the display of the handheld device. For example, the size of each of the pixels (or subpixels) of the display (120) may be smaller than the size of each of the pixels (or subpixels) of the display of the handheld device. As a non-limiting example, the size (e.g., width) of each of the pixels (or sub-pixels) of the display (120) may be about several tens of micrometers (e.g., about 1 micrometer to about 50 micrometers).

[0027] For example, the display (120) may include a driving layer (e.g., a backplane) and an emitting layer on the driving layer. For example, the driving layer may be formed on (or formed of) a silicon substrate for pixels (or sub-pixels) having a higher integration than the pixels (or sub-pixels) of the display of the portable device. For example, the emitting layer may include a plurality of emitting elements driven by the driving layer. As a non-limiting example, the display (120) may include an OLEDoS (organic light emitting diode on silicon) or an LEDoS (light emitting diode on silicon).

[0028] For example, since the driving layer is formed on the silicon substrate, the display (120) may include a plurality of memory cells (122) (or a plurality of cell memories (122)) adjacent to each of the plurality of light-emitting elements. For example, the plurality of memory cells (122) may be connected to each of the plurality of light-emitting elements. For example, the connection of each of the plurality of memory cells (122) to each of the plurality of light-emitting elements may indicate that each of the plurality of memory cells (122) is connected to each of the plurality of light-emitting elements through a driving circuit (e.g., a circuit for pulse width modulation (PWM) as exemplified below). However, the present invention is not limited thereto. For example, each of the sub-pixels of the display (120) may include each of the plurality of light-emitting elements and each of the plurality of memory cells (122). For example, the display (120) may have a MIP (memory in pixel) structure. A display (120) having the above MIP structure can be exemplified within the description of FIG. 2.

[0029] Figure 2 illustrates a display of an exemplary wearable device.

[0030] Referring to FIG. 2, the display (120) may include a plurality of sub-pixels (200). For example, each of the plurality of sub-pixels (200) may include a memory cell, a circuit for PWM, and a light-emitting element. For example, the light-emitting element may be configured to emit light. As a non-limiting example, the light may include red light, green light, blue light, or white light.

[0031] For example, one sub-pixel (200-K) (K is a natural number greater than or equal to 1 and less than or equal to N, and N is the number of a plurality of sub-pixels (200)) may include a memory cell (122-K), a circuit (202-K) for PWM connected to the memory cell (122-K), and a light-emitting element (203-K) connected to the circuit (202-K) for PWM.

[0032] For example, a circuit (202-K) for PWM can obtain a bit sequence from a memory cell (122-K). For example, a circuit (202-K) for PWM can generate or obtain one or more pulse signals corresponding to the bit sequence.

[0033] For example, the light emitting element (203-K) may be configured to emit light according to a PWM technique (or PWM driving, or PWM control) based on one or more of the pulse signals. For example, the brightness (or grayscale) of light emitted from the light emitting element (203-K) may be changed according to the width of each of the one or more pulse signals.

[0034] Referring again to FIG. 1, since the wearable device (100) is worn on a portion of the user's body, the capacity of the rechargeable battery (not shown in FIG. 1) within the wearable device (100) may be relatively small for light weight. As a non-limiting example, the wearable device (100) may display images on the display (120) using foveated rendering to compensate for the relatively small capacity of the rechargeable battery. For example, the display (120) may receive information about an image from the processor (110) through the driving layer, and may cause each of the first light-emitting elements in the light-emitting layer, which is used for displaying a first portion of the image to be recognized (or gazed) by the foveal vision of a user wearing the wearable device (100), to emit light according to the PWM technique using each of the first bit sequences, and may cause each of the second light-emitting elements in the light-emitting layer, for displaying a second portion of the image to be recognized by the peripheral vision of the user, to emit light according to the PWM technique using each of the second bit sequences. For example, a bit depth of each of the first bit sequences may be higher than a bit depth of each of the second bit sequences. For example, the display (120) may display the image based on the emission of each of the first light-emitting elements and the emission of each of the second light-emitting elements. Displaying the image based on the first bit sequences and the second bit sequences can be exemplified within the description of FIG. 3a.

[0035] FIG. 3a illustrates an example of displaying an image based on first bit sequences and second bit sequences.

[0036] Referring to FIG. 3a, the display (120) can display an image (300) using foveated rendering.

[0037] For example, a first portion (301) of an image (300) displayed on a display (120) can be recognized or gazed upon by foveal vision. For example, the first portion (301) of the image (300) can represent a portion of the image (300) identified according to the gaze of a user wearing the wearable device (100). For example, the first portion (301) of the image (300) can represent a portion of the image (300) where the gaze corresponding to the foveal vision is located. For example, the first portion (301) of the image (300) can represent a portion of the image (300) that is focused upon by a user viewing the image (300). For example, the first portion (301) of the image (300) can be circular, as illustrated in FIG. 3A. For example, the first portion (301) of the image (300) may be rectangular or triangular, unlike the illustration in FIG. 3A. However, the present invention is not limited thereto. For example, the first portion (301) of the image (300) may have a shape corresponding to the shape of the area recognized by the central vision.

[0038] For example, a first portion (301) of an image (300) displayed on a display (120) may be identified based on a position of a gaze of a user wearing the wearable device (100) identified from images obtained through at least one camera of the wearable device (100) facing the eye of the user. For example, the first light-emitting elements for displaying the first portion (301) of the image (300) may be identified by the display (120) based on address information (or data) received from the processor (110) and indicating a position of the first portion (301) of the image (300) according to the identification. For example, the address information may be received from the processor (110) at a different reception timing that is distinct from the reception timing of the information about the image (300). For example, the address information may be received from the processor (110) before (or immediately before) the information about the image (300) is received. For example, the address information may be received from the processor (110) together with the information about the image. For example, the address information may be included in the information about the image (300) received from the processor (110). For example, the address information may be included outside the area (333) for the image (300) displayed on the display (120). For example, the address information may be included in an area (334) located outside the area (333).

[0039] As a non-limiting example, if the first part (301) of the image (300) is round, the address information may indicate a center point of the first part (301) of the image (300) and a width (e.g., radius or diameter) of the first part (301) of the image (300). As a non-limiting example, if the first part (301) of the image (300) is rectangular, the address information may indicate a start address of the first part (301) of the image (300) (e.g., an address of the leftmost uppermost corner of the image (300)) and a last address of the first part (301) of the image (300) (e.g., an address of the rightmost lowermost corner of the image (300)).

[0040] For example, the second portion (302) of the image (300) displayed on the display (120) may be recognized or gazed upon by peripheral vision outside the zone gazed upon by the fovea centrails. For example, the second portion (302) of the image (300) may represent a portion of the image (300) that is distinct from the first portion (301) of the image (300). For example, the second portion (302) of the image (300) may represent a portion of the image (300) that is located outside the line of sight corresponding to the foveal vision. For example, the second portion (302) of the image (300) may be located around the first portion (301) of the image (300). As a non-limiting example, the second portion (302) of the image (300) may represent a portion of the image (300) that is spaced apart from the position of the gaze by a distance greater than a reference distance. For example, the second portion (302) of the image (300) may represent a portion of the image (300) that is within the field of view of a user viewing the image (300) but is not focused on by the user.

[0041] For example, the resolution of the first part (301) of the image (300) displayed on the display (120) may be higher than the resolution of the second part (302) of the image (300) displayed on the display (120). For example, the gradation (331) expressed within the first part (301) of the image (300) displayed on the display (120) may be richer than the gradation (332) expressed within the second part (302) of the image (300) displayed on the display (120).

[0042] For example, the display (120) can display the image (300) by causing each of the first light-emitting elements (203-L) used for displaying the first part (301) of the image (300) to emit light according to the PWM technique using each of the first bit sequences (310), and causing each of the second light-emitting elements (203-M) used for displaying the second part (302) of the image (300) to emit light according to the PWM technique using each of the second bit sequences (320). For example, since the bit depth (311) (e.g., 10-bit) of each of the first bit sequences (310) is higher than the bit depth (321) (e.g., 8-bit) of each of the second bit sequences (320), the display (120) can display the first portion (301) of the image (300) having an improved representation than the representation of the second portion (302) of the image (300).

[0043] For example, each of the first bit sequences (310) may further include one or more bits (312) for each of the second bit sequences (320). As a non-limiting example, the one or more bits (312) may be positioned from the rightmost of each of the first bit sequences (310), as illustrated in FIG. 3A. For example, the one or more bits (312) may include the least significant bit (LSB) and the 9 th may include the MSB (most significant bit). As a non-limiting example, one or more bits (312) may be located from the leftmost of each of the first bit sequences (310), unlike the illustration in FIG. 3A. For example, one or more bits (312) may include the MSB and the 2 nd May include, but is not limited to, MSB.

[0044] For example, each of the first light-emitting elements (203-L) may emit light according to the PWM technique using each of the first bit sequences (310), and each of the second light-emitting elements (203-M) may emit light according to the PWM technique using each of the second bit sequences (320). The emission of each of the first light-emitting elements (203-L) according to the PWM technique and the emission of each of the second light-emitting elements (203-M) according to the PWM technique may be exemplified within the description of Fig. 3b.

[0045] FIG. 3b illustrates an example in which each of the first light-emitting elements emits light using each of the first bit sequences and each of the second light-emitting elements emits light using each of the second bit sequences.

[0046] Referring to FIG. 3b, one of the first bit sequences may be '1101110111', and one of the second bit sequences may be '11011101'. For example, the bit sequence of '1101110111' may be '11' (e.g., LSB and 9 of '1101110111') located from the rightmost side with respect to the bit sequence of '11011101'. th It may further include MSB).

[0047] For example, a circuit for PWM (e.g., a circuit (202) for PWM) can generate or obtain pulse signals within a time interval (350) of a horizontal synchronization signal based on the bit sequence of '1101110111'. For example, the circuit for PWM can generate a pulse signal (361) having a width (381) based on the MSB of the bit sequence of '1101110111', and 2 of the bit sequence of '1101110111'. nd Generate a pulse signal (362) having a width (382) based on the MSB, and 4 of the bit sequence '1101110111' th Generate a pulse signal (364) having a width (384) based on the MSB, and 5 of the bit sequence of '1101110111' th Generate a pulse signal (365) having a width (385) based on the MSB, and 6 of the bit sequence '1101110111' th Generate a pulse signal (366) having a width (386) based on the MSB, and 8 of the bit sequence '1101110111' th Generate a pulse signal (368) having a width (388) based on the MSB, and 9 of the bit sequence '1101110111' thA pulse signal (369) having a width (389) can be generated based on the MSB, and a pulse signal (370) having a width (390) can be generated based on the LSB of the bit sequence of '1101110111'.

[0048] For example, a circuit for PWM (e.g., a circuit (202) for PWM) can generate or obtain pulse signals based on the bit sequence of '11011101'. For example, the circuit for PWM can generate a pulse signal (361) having a width (381) based on the MSB of the bit sequence of '11011101', and 2 of the bit sequence of '11011101'. nd Generate a pulse signal (362) having a width (382) based on the MSB, and 4 of the bit sequence of '11011101' th Generate a pulse signal (364) having a width (384) based on the MSB, and 5 of the bit sequence of '11011101' th Generate a pulse signal (365) having a width (385) based on the MSB, and 6 of the bit sequence of '11011101' th A pulse signal (366) having a width (386) can be generated based on the MSB, and a pulse signal (368) having a width (388) can be generated based on the LSB of the bit sequence of '11011101'.

[0049] For example, a light-emitting element (e.g., one of the first light-emitting elements (203-L)) used for displaying a first portion (301) of an image (300) can emit light based on a pulse signal (361), a pulse signal (362), a pulse signal (364), a pulse signal (365), a pulse signal (366), a pulse signal (368), a pulse signal (369), and a pulse signal (370). For example, the light-emitting element can emit light for a time (391) corresponding to widths (381) and (382), emit light for a time (392) corresponding to widths (384), (385), and (386), and emit light for a time (393) corresponding to widths (368), (369), and (370), within a time interval (350).

[0050] For example, a light-emitting element (e.g., one of the second light-emitting elements (203-M)) used for displaying a second portion (302) of an image (300) can emit light based on a pulse signal (361), a pulse signal (362), a pulse signal (364), a pulse signal (365), a pulse signal (366), and a pulse signal (368). For example, the light-emitting element can emit light for a time (391) corresponding to width (381) and width (382), emit light for a time (392) corresponding to width (384), width (385), and width (386), and emit light for a time (394) corresponding to width (368) within a time interval (350).

[0051] For example, since the bit depth of the bit sequence (e.g., '1101110111') provided for the light-emitting element for displaying the first part (301) of the image (300) is higher than the bit depth of the bit sequence (e.g., '11011101') provided for the light-emitting element for displaying the second part (302) of the image (300), the light-emitting element for displaying the first part (301) of the image (300) can emit more light for a time (395) than the light-emitting element for displaying the second part (302) of the image (300). For example, since the light-emitting element for displaying the first part (301) of the image (300) emits more light for a period of time (395) than the light-emitting element for displaying the second part (302) of the image (300), the quality of the first part (301) of the image (300) displayed on the display (120) may be higher than the quality of the second part (302) of the image (300) displayed on the display (120). For example, the first portion (301) of the image (300) may have a higher color gamut (e.g., sRGB (REC-709), P3, or REC-2020) than the second portion (302) of the image (300), a richer grayscale level than the second portion (302) of the image (300), a higher resolution (e.g., FHD or 4K) than the second portion (302) of the image (300), and / or a higher brightness (e.g., standard dynamic range (SDR) or high dynamic range (HDR)) than the second portion (302) of the image (300). For example, the display (120) may provide enhanced visibility at low grayscale or low gray-level. For example, the display (120) may provide enhanced visibility at low light.

[0052] Referring again to FIG. 3A, as a non-limiting example, the image (300) may further include a third portion (303). For example, the third portion (303) may be positioned between the first portion (301) and the second portion (302). For example, the third portion (303) may have a resolution between the resolution of the first portion (301) and the resolution of the second portion (302). For example, the tones expressed within the third portion (303) may be less rich than the tones of the first portion (301) and more rich than the tones of the second portion (302).

[0053] For example, the display (120) can display the third portion (303) of the image (300) by emitting light using each of the third light-emitting elements (not shown in FIG. 3A) for displaying the third portion (303) of the image (300) according to the PWM technique using each of the third bit sequences (not shown in FIG. 3A). For example, the bit depth of each of the third bit sequences can be higher than the bit depth of each of the second bit sequences (320) and lower than the bit depth of each of the first bit sequences (310).

[0054] Referring back to FIG. 1, the maximum storage size (or maximum storage capacity) of each of the plurality of memory cells (122) may be larger than the size of each of the first bit sequences. As a non-limiting example, the maximum storage size of each of the plurality of memory cells (122) may correspond to the size of each of the second bit sequences or may be equal to the size of each of the second bit sequences. For example, the display (120) may further display one or more bits (e.g., one or more bits (312) of FIG. 3a and / or the LSB and 9 of the bit sequence '1101110111' of FIG. 3b) included in each of the second bit sequences. thIt may further include a memory (123) for storing the MSB. The memory (123) may be referred to as a side memory.

[0055] The method of using memory (123) can be implemented in various ways within the display (120).

[0056] For example, the display (120) can obtain each of the first bit sequences by adding one or more bits obtained from the memory (123) to each of the first set of bit sequences obtained from some of the plurality of memory cells (122). For example, the display (120) can obtain each of the second bit sequences from another part of the plurality of memory cells (122) without using the memory (123) (or bypassing obtaining the one or more bits from the memory (123). Obtaining each of the first bit sequences can be exemplified within the description of FIG. 4A, and obtaining each of the second bit sequences can be exemplified within the description of FIG. 4B.

[0057] FIG. 4A illustrates an example of obtaining each of the first bit sequences by adding one or more bits obtained from a memory to each of the first set of bit sequences obtained from some of a plurality of memory cells.

[0058] Figure 4b illustrates an example of obtaining each of the second bit sequences from a different portion of a plurality of memory cells.

[0059] Referring to FIG. 4A, the display (120) may obtain each of a plurality of bit sequences from the information about the image received from the processor (110). For example, the display (120) may store each of the plurality of bit sequences in a plurality of memory cells (122). For example, the display (120) may obtain each of the plurality of bit sequences from each of the plurality of memory cells (122) after the storage. For example, the display (120) may store one or more bits (402) obtained from the processor (110) (or one or more bits (402) obtained from the information received from the processor (110)) in the memory (123) according to the address information. For example, the display (120) may obtain each of the first bit sequences (310) by adding one or more bits (402) to each of the first set of bit sequences (401) obtained from a portion (122-L) of the plurality of memory cells (122) each connected to the first light-emitting elements (203-L), as represented by arrows (411) and (412). For example, one or more bits (402) within the first bit sequences (310) may be positioned after (or to the right of) the LSB of each of the first set of bit sequences (401), such as in state (421). For example, one or more bits (402) within the first bit sequences (310) may be positioned before (or to the left of) the MSB of each of the first set of bit sequences (401), such as in state (422). For example, the display (120) can cause each of the first light-emitting elements (203-L) to emit light by providing each of the first bit sequences (310) to the circuit (202-L) for PWM.

[0060] Referring to FIG. 4B, the display (120) can obtain each of the second bit sequences (320) by bypassing adding one or more bits (e.g., one or more bits (402)) to each of the second set of bit sequences (431) obtained from another portion (122-M) of the plurality of memory cells (122) each connected to the second light-emitting elements (203-M), as indicated by arrows (441). For example, obtaining each of the second bit sequences (320) by bypassing adding one or more bits (e.g., one or more bits (402)) to each of the second set of bit sequences (431) can indicate obtaining the second bit sequences (320), which are the second set of bit sequences (431), from another portion (122-M) of the plurality of memory cells (122) without using the memory (123). However, this is not limited thereto. For example, obtaining each of the second bit sequences (320) by bypassing adding one or more bits (e.g., one or more bits (402)) to each of the second set of bit sequences (431) may also mean obtaining the second bit sequences (320) by adding one or more bits that are null to each of the second set of bit sequences (431). For example, the display (120) may cause each of the second light-emitting elements (203-M) to emit light by providing each of the second bit sequences (320) to the circuit (202-M) for PWM.

[0061] For example, the display (120) can display the image (e.g., image (300)) based on the light emission of each of the first light emitting elements (203-L) and the light emission of each of the second light emitting elements (203-M).

[0062] Referring back to FIG. 1, unlike the examples of FIGS. 4A and 4B, the display (120) may acquire each of the first bit sequences prior to performing storage within a portion of the plurality of memory cells (122) by adding the one or more bit sequences to each of the first set of bit sequences obtained based on the information about the image received from the processor (110), store a portion of the first bit sequences within the memory (123), and store the remaining portion of the first bit sequences within the portion of the plurality of memory cells (122) respectively connected to the first light-emitting elements. For example, the display (120) may store the second bit sequences, which are the second set of bit sequences, within the other portion of the plurality of memory cells (122) respectively connected to the second light-emitting elements. Storing said part of each of said first bit sequences in the memory (123) and storing said remaining part of each of said first bit sequences in said part of a plurality of memory cells (122) may be exemplified within the description of FIG. 5a, and storing said second bit sequences in said other part of a plurality of memory cells (122) may be exemplified within the description of FIG. 5b.

[0063] FIG. 5a illustrates an example of storing each of the first bit sequences obtained using the first circuit into a memory cell and memory through the second circuit.

[0064] Figure 5b illustrates an example of storing each of the second bit sequences in a memory cell through a second circuit.

[0065] Referring to FIG. 5A, the display (120) may obtain a plurality of bit sequences from the information about the image received from the processor (110). For example, the display (120) may include a first circuit (551) for obtaining each of the first bit sequences (310) by extending or expanding each of the first set of bit sequences (401) to be at least partially stored in a portion (122-L) of the plurality of memory cells (122) respectively connected to the first light-emitting elements (203-L) among the plurality of bit sequences, and a second circuit (552) for storing a portion of the first bit sequences (310) in the memory (123) and storing the remaining portion of the first bit sequences (310) in the portion (122-L) of the plurality of memory cells (122). For example, the display (120) can extend each of the first set of bit sequences (401) to be stored within a portion (122-L) of the plurality of memory cells (122) using the first circuit (551). For example, the display (120) can obtain each of the first set of bit sequences (310) extended from each of the first set of bit sequences (401) by adding one or more bits (402) to each of the first set of bit sequences (401). For example, the one or more bits (402) can be generated by the processor (110) and provided to the display (120) from the processor (110). For example, the one or more bits (402) can also be generated by the display (120) based on the address information (or command) from the processor (110).For example, the display (120) may use the second circuit (552) to divide each of the first bit sequences (310), store a portion of each of the first bit sequences (310) obtained by the division in the memory (123), and store the remaining portion of each of the first bit sequences (310) obtained by the division in a portion (122-L) of a plurality of memory cells (122). As a non-limiting example, the portion of each of the first bit sequences (310) may be one or more bits (402), and the remaining portion of each of the first bit sequences (310) may be a first set of bit sequences (401). Although not shown in FIG. 5A, the display (120) can provide each of the first bit sequences (310) obtained by adding a portion of each of the first bit sequences (310) obtained from the memory (123), as shown in FIG. 4A, to the remaining portion of each of the first bit sequences (310) obtained from a portion (122-L) of the plurality of memory cells (122), thereby causing each of the first light-emitting elements (203-L) to emit light by providing each of the first bit sequences (310) obtained to the circuit (202-L) for PWM.

[0066] Referring to FIG. 5B, the display (120) can obtain a second set of bit sequences (431) to be stored in another portion (122-M) of the plurality of memory cells (122) each connected to the second light-emitting elements (203-M) among the plurality of bit sequences as second bit sequences (320) without using the first circuit (551) (or by bypassing the first circuit (551). For example, the display (120) can store each of the second bit sequences (320) in another portion (122-M) of the plurality of memory cells (122) using the second circuit (552) (or without using the second circuit (552)). Although not shown in FIG. 5b, the display (120) can cause each of the second light-emitting elements (203-M) to emit light by providing each of the second bit sequences (320) to the circuit (202-M) for PWM, as shown in FIG. 4b.

[0067] For example, the display (120) can display the image (e.g., image (300)) based on the light emission of each of the first light emitting elements (203-L) and the light emission of each of the second light emitting elements (203-M).

[0068] Referring back to FIG. 1, unlike the examples of FIGS. 4A to 5B, the display (120) may obtain a plurality of bit sequences including the first bit sequences and the second bit sequences from the information about the image received from the processor (110). For example, the display (120) may store a portion of each of the first bit sequences in the memory (123) and store a remaining portion of each of the first bit sequences in each of a first set of memory cells that are part of a plurality of memory cells (122) that are each connected to the first light-emitting elements. For example, the display (120) may store each of the second bit sequences in each of a second set of memory cells that are another portion of the plurality of memory cells (122) that are each connected to the second light-emitting elements. Storing a portion of each of the first bit sequences in memory (123) and storing the remaining portion of each of the first bit sequences in each of the first set of memory cells may be exemplified within the description of FIG. 6a, and storing the second bit sequences in each of the second set of memory cells may be exemplified within the description of FIG. 6b.

[0069] FIG. 6a illustrates an example of storing each of the first bit sequences in a memory cell and memory through a second circuit.

[0070] FIG. 6b illustrates an example of storing each of the second bit sequences in a memory cell and memory through a second circuit.

[0071] Referring to FIG. 6A, the display (120) may obtain each of the first bit sequences (310) from the information about the image, segment each of the first bit sequences (310) using the second circuit (552), store each of the first bit sequences (310) obtained by the segmentation in the memory (123), and store the remaining part of each of the first bit sequences (310) obtained by the segmentation in each of the first set of memory cells (122-L) (or in a part (122-L) of a plurality of memory cells (122). As a non-limiting example, the part of each of the first bit sequences (310) may be one or more bits (402), and the remaining part of each of the first bit sequences (310) may be the first set of bit sequences (401). Although not shown in FIG. 6A, the display (120) can cause each of the first light-emitting elements (203-L) to emit light by providing each of the first bit sequences (310) obtained by adding a portion of each of the first bit sequences (310) obtained from the memory (123), as shown in FIG. 4A, to the circuit (202-L) for PWM to the remaining portion of each of the first bit sequences (310) obtained from each of the first set of memory cells (122-L).

[0072] Referring to FIG. 6B, the display (120) can store each of the second bit sequences (320) within each of the second set of memory cells (122-M) (or within another portion (122-M) of the plurality of memory cells (122)) using the second circuit (552) (or without using the second circuit (552)). Although not shown in FIG. 6B, the display (120) can cause each of the second light-emitting elements (203-M) to emit light by providing each of the second bit sequences (320) to the circuit (202-M) for PWM, as shown in FIG. 4B.

[0073] For example, the display (120) can display the image (e.g., image (300)) based on the light emission of each of the first light emitting elements (203-L) and the light emission of each of the second light emitting elements (203-M).

[0074] Referring back to FIG. 1, the display (120) may include only a plurality of memory cells (122), without a memory (123). For example, when the display (120) does not include a memory (123), the maximum storage size of each of the plurality of memory cells (122) may correspond to the size of each of the first bit sequences. When the display (120) does not include a memory (123), operations for displaying the image using the first bit sequences and the second bit sequences may be exemplified within the description of FIG. 7A and the description of FIG. 7B.

[0075] FIG. 7a illustrates an example of storing each of the bit sequences of the first set into a memory cell through the first circuit as each of the first bit sequences.

[0076] FIG. 7b illustrates an example of storing each of the second bit sequences obtained by removing one or more bits from each of the second set of bit sequences in a memory cell through the first circuit.

[0077] Referring to FIG. 7A, the display (120) can obtain a plurality of bit sequences from the information about the image received from the processor (110). For example, the display (120) can identify a first set of bit sequences (701) and a second set of bit sequences (e.g., the second set of bit sequences (731) of FIG. 7B) among the plurality of bit sequences. For example, the display (120) can store the first set of bit sequences (701) as first bit sequences (310) in a first set of memory cells (122-L), which are part of a plurality of memory cells (122) respectively connected to the first light-emitting elements (203-L), through the third circuit (703) (or bypassing the use of the third circuit (703). For example, storing the first set of bit sequences (701) as the first bit sequences (310) within the first set of memory cells (122-L) by bypassing the use of the third circuit (703) may indicate storing the first bit sequences (310), which are the first set of bit sequences (701), within the first set of memory cells (122-L) without using the third circuit (703). For example, the display (120) may cause each of the first light-emitting elements (203-L) to emit light by providing each of the first bit sequences (310) obtained from each of the first set of memory cells (122-L) to the circuit (202-L) for PWM.

[0078] Referring to FIG. 7B, the display (120) may include a third circuit (703) for removing one or more bits (732) from a second set of bit sequences (731) among the plurality of bit sequences. For example, the display (120) may obtain second bit sequences (320) by removing one or more bits (732) from the second set of bit sequences (731) using the third circuit (703). For example, the display (120) may store each of the second bit sequences (320) in each of the second set of memory cells (122-M), which are another part of the plurality of memory cells (122) respectively connected to the second light-emitting elements (203-M). For example, the display (120) can cause each of the second light-emitting elements (203-M) to emit light by providing each of the second bit sequences (320) obtained from each of the second set of memory cells (122-M) to the circuit (202-M) for PWM.

[0079] For example, the display (120) can display the image (e.g., image (300)) based on the light emission of each of the first light emitting elements (203-L) and the light emission of each of the second light emitting elements (203-M).

[0080] Referring again to FIG. 1, the display (120) can adaptively display the image using the first bit sequences and the second bit sequences based on a condition. For example, the condition can be implemented in various ways.

[0081] For example, the display (120) may display the image by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the second bit sequences while the remaining capacity of the rechargeable battery of the wearable device (100) is less than a reference capacity. For example, the display (120) may display the image by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the third bit sequences having the same bit depth as the bit depth of each of the first bit sequences while the remaining capacity is greater than or equal to the reference capacity. For example, the third bit sequences may be distinguished from the third bit sequences described in the description of the third portion (303) of the image (300) of FIG. 3A.

[0082] For example, the display (120) can display the image by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the second bit sequences while the brightness level of a portion of an environment around the wearable device (100) provided with the image is lower than a reference brightness level. For example, the display (120) can display the image by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the third bit sequences having a bit depth equal to the bit depth of each of the first bit sequences while the brightness level is equal to or higher than the reference brightness level. For example, the third bit sequences may be distinguished from the third bit sequences described in the description of the third portion (303) of the image (300) of FIG. 3A.

[0083] For example, the display (120) may display the image by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences and each of the second light-emitting elements to emit light according to the PWM technique using each of the second bit sequences, based on user settings for displaying the image, settings of a software application for displaying the image, and / or a status related to execution of the software application, or by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences and each of the second light-emitting elements to emit light according to the PWM technique using each of the third bit sequences having the same bit depth as the bit depth of each of the first bit sequences. For example, the third bit sequences may be distinguished from the third bit sequences described in the description of the third portion (303) of the image (300) of FIG. 3A.

[0084] The examples described above can be implemented within the electronic devices illustrated in FIGS. 8 and 9.

[0085] FIG. 8 is a block diagram of an electronic device (801) within a network environment (800) according to various embodiments. Referring to FIG. 8, in the network environment (800), the electronic device (801) may communicate with the electronic device (802) via a first network (898) (e.g., a short-range wireless communication network), or may communicate with at least one of the electronic device (804) or the server (808) via a second network (899) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (801) may communicate with the electronic device (804) via the server (808). According to one embodiment, the electronic device (801) may include a processor (820), a memory (830), an input module (850), an audio output module (855), a display module (860), an audio module (870), a sensor module (876), an interface (877), a connection terminal (878), a haptic module (879), a camera module (880), a power management module (888), a battery (889), a communication module (890), a subscriber identification module (896), or an antenna module (897). In some embodiments, the electronic device (801) may omit at least one of these components (e.g., the connection terminal (878)), or may have one or more other components added. In some embodiments, some of these components (e.g., the sensor module (876), the camera module (880), or the antenna module (897)) may be integrated into one component (e.g., the display module (860)).

[0086] The processor (820) may, for example, execute software (e.g., a program (840)) to control at least one other component (e.g., a hardware or software component) of the electronic device (801) connected to the processor (820) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (820) may store commands or data received from other components (e.g., a sensor module (876) or a communication module (890)) in a volatile memory (832), process the commands or data stored in the volatile memory (832), and store result data in a non-volatile memory (834). According to one embodiment, the processor (820) may include a main processor (821) (e.g., a central processing unit or an application processor) or an auxiliary processor (823) (e.g., a graphics processing unit, a neural processing unit (NPU), an image signal processor, a sensor hub processor, or a communication processor) that can operate independently or together with the main processor (821). For example, when the electronic device (801) includes the main processor (821) and the auxiliary processor (823), the auxiliary processor (823) may be configured to use less power than the main processor (821) or to be specialized for a given function. The auxiliary processor (823) may be implemented separately from the main processor (821) or as a part thereof.

[0087] The auxiliary processor (823) may control at least a portion of functions or states associated with at least one component (e.g., a display module (860), a sensor module (876), or a communication module (890)) of the electronic device (801), for example, on behalf of the main processor (821) while the main processor (821) is in an inactive (e.g., sleep) state, or together with the main processor (821) while the main processor (821) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (823) (e.g., an image signal processor or a communication processor) may be implemented as a part of another functionally related component (e.g., a camera module (880) or a communication module (890)). In one embodiment, the auxiliary processor (823) (e.g., a neural network processing unit) may include a hardware structure specialized for processing artificial intelligence models. The artificial intelligence models may be generated through machine learning. This learning can be performed, for example, on the electronic device (801) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (808)). The learning algorithm can include, for example, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, but is not limited to the examples described above. The artificial intelligence model can include multiple artificial neural network layers.The artificial neural network may be one of a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), a deep Q-network, or a combination of two or more of the above, but is not limited to the examples described above. In addition to, or alternatively to, a hardware structure, an artificial intelligence model may include a software structure.

[0088] The memory (830) can store various data used by at least one component (e.g., the processor (820) or the sensor module (876)) of the electronic device (801). The data can include, for example, software (e.g., the program (840)) and input data or output data for commands related thereto. The memory (830) can include volatile memory (832) or non-volatile memory (834).

[0089] The program (840) may be stored as software in the memory (830) and may include, for example, an operating system (842), middleware (844), or an application (846).

[0090] The input module (850) can receive commands or data to be used in a component of the electronic device (801) (e.g., a processor (820)) from an external source (e.g., a user) of the electronic device (801). The input module (850) can include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus pen).

[0091] The audio output module (855) can output audio signals to the outside of the electronic device (801). The audio output module (855) can include, for example, a speaker or a receiver. The speaker can be used for general purposes, such as multimedia playback or recording playback. The receiver can be used to receive incoming calls. In one embodiment, the receiver can be implemented separately from the speaker or as part of the speaker.

[0092] The display module (860) can visually provide information to an external party (e.g., a user) of the electronic device (801). The display module (860) may include, for example, a display, a holographic device, or a projector and a control circuit for controlling the device. In one embodiment, the display module (860) may include a touch sensor configured to detect a touch, or a pressure sensor configured to measure the intensity of a force generated by the touch.

[0093] The audio module (870) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (870) can acquire sound through the input module (850), output sound through the sound output module (855), or an external electronic device (e.g., electronic device (802)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (801).

[0094] The sensor module (876) can detect the operating status (e.g., power or temperature) of the electronic device (801) or the external environmental status (e.g., user status) and generate an electrical signal or data value corresponding to the detected status. According to one embodiment, the sensor module (876) can include, for example, a gesture sensor, a gyro sensor, a barometric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an IR (infrared) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illuminance sensor.

[0095] The interface (877) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (801) with an external electronic device (e.g., the electronic device (802)). In one embodiment, the interface (877) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0096] The connection terminal (878) may include a connector through which the electronic device (801) may be physically connected to an external electronic device (e.g., the electronic device (802)). In one embodiment, the connection terminal (878) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0097] The haptic module (879) can convert electrical signals into mechanical stimuli (e.g., vibration or movement) or electrical stimuli that a user can perceive through tactile or kinesthetic sensations. According to one embodiment, the haptic module (879) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0098] The camera module (880) can capture still images and videos. According to one embodiment, the camera module (880) may include one or more lenses, image sensors, image signal processors, or flashes.

[0099] The power management module (888) can manage the power supplied to the electronic device (801). According to one embodiment, the power management module (888) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0100] A battery (889) may power at least one component of the electronic device (801). In one embodiment, the battery (889) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0101] The communication module (890) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (801) and an external electronic device (e.g., electronic device (802), electronic device (804), or server (808)), and the performance of communication through the established communication channel. The communication module (890) may operate independently from the processor (820) (e.g., application processor) and may include one or more communication processors that support direct (e.g., wired) communication or wireless communication. According to one embodiment, the communication module (890) may include a wireless communication module (892) (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module (894) (e.g., a local area network (LAN) communication module, or a power line communication module). Any of these communication modules may communicate with an external electronic device (804) via a first network (898) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (899) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (892) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (896) to verify or authenticate the electronic device (801) within a communication network such as the first network (898) or the second network (899).

[0102] The wireless communication module (892) can support 5G networks and next-generation communication technologies following the 4G network, such as NR access technology (new radio access technology). The NR access technology can support high-speed transmission of high-capacity data (eMBB (enhanced mobile broadband)), minimizing terminal power and connecting multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (892) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (892) may support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (892) may support various requirements specified in the electronic device (801), an external electronic device (e.g., the electronic device (804)), or a network system (e.g., the second network (899)). According to one embodiment, the wireless communication module (892) may support a peak data rate (e.g., 20 Gbps or more) for eMBB realization, a loss coverage (e.g., 164 dB or less) for mMTC realization, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL), or 1 ms or less for round trip) for URLLC realization.

[0103] The antenna module (897) can transmit or receive signals or power to or from an external device (e.g., an external electronic device). In one embodiment, the antenna module (897) may include an antenna including a radiator formed of a conductor or a conductive pattern formed on a substrate (e.g., a PCB). In one embodiment, the antenna module (897) may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication method used in a communication network, such as the first network (898) or the second network (899), may be selected from the plurality of antennas by, for example, the communication module (890). A signal or power may be transmitted or received between the communication module (890) and an external electronic device via the selected at least one antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (897).

[0104] According to various embodiments, the antenna module (897) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0105] At least some of the above components can be interconnected and exchange signals (e.g., commands or data) with each other via a communication method between peripheral devices (e.g., a bus, GPIO (general purpose input and output), SPI (serial peripheral interface), or MIPI (mobile industry processor interface)).

[0106] According to one embodiment, commands or data may be transmitted or received between the electronic device (801) and an external electronic device (804) via a server (808) connected to a second network (899). Each of the external electronic devices (802 or 804) may be the same or a different type of device as the electronic device (801). According to one embodiment, all or part of the operations executed in the electronic device (801) may be executed in one or more of the external electronic devices (802, 804, or 808). For example, when the electronic device (801) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (801) may, instead of or in addition to executing the function or service itself, request one or more external electronic devices to perform the function or at least a part of the service. One or more external electronic devices that receive the request may execute at least a portion of the requested function or service, or an additional function or service related to the request, and transmit the result of the execution to the electronic device (801). The electronic device (801) may process the result as is or additionally and provide it as at least a portion of a response to the request. For this purpose, cloud computing, distributed computing, mobile edge computing (MEC), or client-server computing technology may be used, for example. The electronic device (801) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (804) may include an Internet of Things (IoT) device. The server (808) may be an intelligent server utilizing machine learning and / or a neural network. According to one embodiment, the external electronic device (804) or the server (808) may be included in the second network (899).The electronic device (801) can be applied to intelligent services (e.g., smart home, smart city, smart car, or healthcare) based on 5G communication technology and IoT-related technology.

[0107] FIG. 9 is a block diagram (900) of a display module (860) according to various embodiments. Referring to FIG. 9, the display module (860) may include a display (910) and a display driver IC (DDI) (930) for controlling the display (910). The DDI (930) may include an interface module (931), a memory (933) (e.g., a buffer memory), an image processing module (935), or a mapping module (937). The DDI (930) may receive image information including, for example, image data or an image control signal corresponding to a command for controlling the image data, from another component of the electronic device 801 through the interface module (931). For example, according to one embodiment, image information may be received from a processor (820) (e.g., a main processor (821) (e.g., an application processor) or an auxiliary processor (823) (e.g., a graphics processing unit) that operates independently of the function of the main processor (821). The DDI (930) may communicate with a touch circuit (950) or a sensor module (876) through the interface module (931). In addition, the DDI (930) may store at least a part of the received image information in the memory (933), for example, in units of frames. The image processing module (935) may, for example, perform preprocessing or postprocessing (e.g., resolution, brightness, or size adjustment) on at least a part of the image data based at least on the characteristics of the image data or the characteristics of the display (910). The mapping module (937) may generate a voltage value or a current value corresponding to the image data that has been preprocessed or postprocessed through the image processing module (835). According to one embodiment, the voltage The generation of the values ​​or current values ​​may be performed at least in part based on properties of the pixels of the display (910), for example, the arrangement of the pixels (RGB stripe or pentile structure), or the size of each of the sub-pixels.At least some pixels of the display (910) may be driven based at least in part on, for example, the voltage value or current value, so that visual information (e.g., text, an image, or an icon) corresponding to the image data may be displayed through the display (910).

[0108] According to one embodiment, the display module (860) may further include a touch circuit (950). The touch circuit (950) may include a touch sensor (951) and a touch sensor IC (953) for controlling the same. The touch sensor IC (953) may control the touch sensor (951) to detect, for example, a touch input or a hovering input for a specific location of the display (910). For example, the touch sensor IC (953) may detect a touch input or a hovering input by measuring a change in a signal (e.g., voltage, light amount, resistance, or charge amount) for a specific location of the display (910). The touch sensor IC (953) may provide information (e.g., location, area, pressure, or time) regarding the detected touch input or hovering input to the processor (820). According to one embodiment, at least a portion of the touch circuit (950) (e.g., touch sensor IC (953)) may be included as part of the display driver IC (930), or as part of the display (910), or as part of another component (e.g., auxiliary processor (823)) disposed external to the display module (860).

[0109] According to one embodiment, the display module (860) may further include at least one sensor (e.g., a fingerprint sensor, an iris sensor, a pressure sensor, or an illuminance sensor) of the sensor module (876), or a control circuit therefor. In this case, the at least one sensor or the control circuit therefor may be embedded in a part of the display module (860) (e.g., the display (910) or the DDI (930)) or a part of the touch circuit (950). For example, if the sensor module (876) embedded in the display module (860) includes a biometric sensor (e.g., a fingerprint sensor), the biometric sensor may obtain biometric information (e.g., a fingerprint image) associated with a touch input through a part of the display (910). As another example, if the sensor module (876) embedded in the display module (860) includes a pressure sensor, the pressure sensor may obtain pressure information associated with a touch input through a part or the entire area of ​​the display (910). According to one embodiment, the touch sensor (951) or sensor module (876) may be positioned between pixels of a pixel layer of the display (910), or above or below the pixel layer.

[0110] As described above, the wearable device (100) may include a display (120) and a processor (110) including a driving layer formed on a silicon substrate and an emitting layer on the driving layer. According to one embodiment, the display (120) may be configured to receive information about an image (300) from the processor (110) through the driving layer. According to one embodiment, the display (120) may be configured to cause each of the first light-emitting elements in the emitting layer to emit light according to a PWM (pulse width modulation) technique for displaying a first portion (301) of the image (300) identified according to the gaze of a user wearing the wearable device (100) using each of the first bit sequences (310). In one embodiment, the display (120) may be configured to emit light according to the PWM technique, each of the second light-emitting elements within the light-emitting layer for displaying a second portion (302) of the image (300) around the first portion, using each of the second bit sequences (320). In one embodiment, the display (120) may be configured to display the image (300) based on the emission of each of the first light-emitting elements and the emission of each of the second light-emitting elements. In one embodiment, a bit depth of each of the first bit sequences (310) may be higher than a bit depth of each of the second bit sequences (320).

[0111] According to one embodiment, the display (120) may include a plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, and a plurality of memory cells respectively connected to the plurality of light-emitting elements. According to one embodiment, the display (120) may be configured to store each of a plurality of bit sequences obtained from the information received from the processor (110) in each of the plurality of memory cells. According to one embodiment, the display (120) may be configured to obtain each of the plurality of bit sequences from each of the plurality of memory cells. According to one embodiment, the display (120) may be configured to obtain each of the first bit sequences (310) by adding one or more bits to each of a first set of bit sequences obtained from some of the plurality of memory cells respectively connected to the first light-emitting elements. In one embodiment, the display (120) may be configured to obtain each of the second bit sequences (320) by bypassing adding the one or more bits to each of the second set of bit sequences obtained from another portion of the plurality of memory cells respectively connected to the second light-emitting elements. In one embodiment, the display (120) may be configured to cause each of the first light-emitting elements to emit light using each of the first bit sequences (310). In one embodiment, the display (120) may be configured to cause each of the second light-emitting elements to emit light using each of the second bit sequences (320).

[0112] According to one embodiment, the one or more bits within each of the first bit sequences (310) may be positioned after the least significant bit (LSB) of each of the bit sequences of the first set.

[0113] According to one embodiment, the one or more bits within each of the first bit sequences (310) may be positioned before the most significant bit (MSB) of each of the bit sequences of the first set.

[0114] According to one embodiment, each of the plurality of light-emitting elements may be connected to each of the plurality of memory cells through a circuit for pulse width modulation. According to one embodiment, the display (120) may be configured to cause each of the first light-emitting elements to emit light by providing each of the first bit sequences (310) to the circuit connected to each of the first light-emitting elements. According to one embodiment, the display (120) may be configured to cause each of the second light-emitting elements to emit light by providing each of the second bit sequences (320) to the circuit connected to each of the second light-emitting elements.

[0115] In one embodiment, the display (120) may include a memory other than the plurality of memory cells. In one embodiment, the one or more bits may be obtained from the memory.

[0116] According to one embodiment, the size of each of the first bit sequences (310) may be greater than the maximum storage size of each of the plurality of memory cells.

[0117] According to one embodiment, the display (120) may include a plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, a plurality of memory cells respectively connected to the plurality of light-emitting elements, and a memory different from the plurality of memory cells. According to one embodiment, a first set of memory cells respectively connected to the first light-emitting elements among the plurality of memory cells may be used, together with the memory, to obtain each of the first bit sequences (310). According to one embodiment, a second set of memory cells respectively connected to the second light-emitting elements among the plurality of memory cells may be used to obtain each of the second bit sequences (320). According to one embodiment, the memory may be used to obtain the first bit sequences (310) among the first bit sequences (310) and the second bit sequences (320). According to one embodiment, the memory may not be used to obtain the second bit sequences (320).

[0118] According to one embodiment, the display (120) may include a plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, a plurality of memory cells respectively connected to the plurality of light-emitting elements, and a memory different from the plurality of memory cells. According to one embodiment, the plurality of memory cells may include a first set of memory cells respectively connected to the first light-emitting elements and a second set of memory cells respectively connected to the second light-emitting elements. According to one embodiment, the display (120) may be configured to obtain the first bit sequences (310) by adding one or more bits obtained from the memory to each of the first set of bit sequences respectively obtained from the first set of memory cells, and to cause each of the first light-emitting elements to emit light using each of the first bit sequences (310). According to one embodiment, the display (120) may be configured to obtain a second set of bit sequences obtained from each of the second sets of memory cells as the second bit sequences (320), and to cause each of the second light-emitting elements to emit light using each of the second bit sequences (320).

[0119] According to one embodiment, the display (120) may include a plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, a plurality of memory cells respectively connected to the plurality of light-emitting elements, and a memory different from the plurality of memory cells. According to one embodiment, the display (120) may be configured to obtain a plurality of bit sequences from the information received from the processor (110). According to one embodiment, the display (120) may be configured to obtain each of the first bit sequences (310) by adding one or more bits to each of a first set of bit sequences to be stored in a portion of the plurality of memory cells respectively connected to the first light-emitting elements among the plurality of bit sequences. According to one embodiment, the display (120) may be configured to obtain a second set of bit sequences to be stored in another portion of the plurality of memory cells respectively connected to the second light-emitting elements among the plurality of bit sequences as the second bit sequences (320). In one embodiment, the display (120) may be configured to store the one or more bits that are part of each of the first bit sequences (310) within the memory. In one embodiment, the display (120) may be configured to store each of the first set of bit sequences that are a remaining part of each of the first bit sequences (310) within each of the first set of memory cells that are part of the plurality of memory cells. In one embodiment, the display (120) may be configured to store each of the second bit sequences (320) within each of the second set of memory cells that are another part of the plurality of memory cells.According to one embodiment, the display (120) may be configured to cause each of the first light-emitting elements to emit light using each of the first bit sequences (310) obtained by adding the one or more bits obtained from the memory to each of the first set of bit sequences obtained from each of the first set of memory cells. According to one embodiment, the display (120) may be configured to cause each of the second light-emitting elements to emit light using each of the second bit sequences (320) obtained from each of the second set of memory cells.

[0120] According to one embodiment, the display (120) may include a plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, a plurality of memory cells respectively connected to the plurality of light-emitting elements, and a memory different from the plurality of memory cells. According to one embodiment, the display (120) may be configured to obtain a plurality of bit sequences including the first bit sequences (310) and the second bit sequences (320) from the information received from the processor (110). According to one embodiment, the display (120) may be configured to store a portion of each of the first bit sequences (310) in the memory. According to one embodiment, the display (120) may be configured to store a remaining portion of each of the first bit sequences (310) in each of a first set of memory cells which are part of the plurality of memory cells respectively connected to the first light-emitting elements. In one embodiment, the display (120) may be configured to store each of the second bit sequences (320) within each of a second set of memory cells, which are another portion of the plurality of memory cells, each of which is connected to each of the second light-emitting elements. In one embodiment, the display (120) may be configured to cause each of the first light-emitting elements to emit light using each of the first bit sequences (310) obtained by adding a portion of each of the first bit sequences (310) obtained from the memory to the remaining portion of each of the first bit sequences (310) obtained from each of the memory cells of the first set. In one embodiment, the display (120) may be configured to cause each of the second light-emitting elements to emit light using each of the second bit sequences (320) obtained from each of the memory cells of the second set.

[0121] According to one embodiment, the display (120) may include a plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, and a plurality of memory cells respectively connected to the plurality of light-emitting elements. According to one embodiment, the display (120) may be configured to obtain a plurality of bit sequences from the information received from the processor (110). According to one embodiment, the display (120) may be configured to identify a first set of bit sequences and a second set of bit sequences among the plurality of bit sequences. According to one embodiment, the display (120) may be configured to store the first set of bit sequences as the first bit sequences (310) within a first set of memory cells which are part of the plurality of memory cells respectively connected to the first light-emitting elements. According to one embodiment, the display (120) may be configured to store the second bit sequences (320) obtained by removing one or more bits from each of the bit sequences of the second set, respectively, in a second set of memory cells that are another part of the plurality of memory cells, each of which is connected to the second light-emitting elements. According to one embodiment, the display (120) may be configured to cause each of the first light-emitting elements to emit light using each of the first bit sequences (310) obtained from each of the memory cells of the first set. According to one embodiment, the display (120) may be configured to cause each of the second light-emitting elements to emit light using each of the second bit sequences (320) obtained from each of the memory cells of the second set.

[0122] In one embodiment, the wearable device (100) may include at least one camera facing the user's eyes. In one embodiment, the first portion (301) may be identified based on the position of the user's gaze identified from images acquired through the at least one camera.

[0123] According to one embodiment, the wearable device (100) may include a rechargeable battery. According to one embodiment, the display (120) may be configured to display the image (300) by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences (310) and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the second bit sequences (320), while the remaining capacity of the battery is less than a reference capacity. According to one embodiment, the display (120) may be configured to display the image (300) by emitting light using each of the first light-emitting elements according to the PWM technique using each of the first bit sequences (310) while the remaining capacity is greater than or equal to the reference capacity, and by emitting light using each of the second light-emitting elements according to the PWM technique using each of the third bit sequences having the same bit depth as the bit depth of each of the first bit sequences (310).

[0124] According to one embodiment, the display (120) may be configured to identify the first portion (301) from the information.

[0125] According to one embodiment, the information may include data for identifying the first portion (301) outside the area for the image (300) displayed on the display (120).

[0126] According to one embodiment, the display (120) may be configured to display the image (300) by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences (310) and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the second bit sequences (320), while a brightness level of a portion of an environment surrounding the wearable device (100) provided with the image (300) is lower than a reference brightness level. According to one embodiment, the display (120) may be configured to display the image (300) by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences (310) while the brightness level is equal to or higher than the reference brightness level, and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the third bit sequences having a bit depth equal to the bit depth of each of the first bit sequences (310).

[0127] As described above, a method executed for a display (120) of a wearable device (100) including a processor (110) may include an operation of receiving information about an image (300) from the processor (110). According to one embodiment, the method may include an operation of emitting light, respectively, from a first light-emitting element within a light-emitting layer of a display (120) of the wearable device (100), which is used for displaying a first portion (301) of the image (300) identified according to a gaze of a user wearing the wearable device (100), using each of the first bit sequences (310), according to a pulse width modulation (PWM) technique. According to one embodiment, the method may include an operation of emitting light, respectively, from a second light-emitting element within the light-emitting layer, for displaying a second portion (302) of the image (300) around the first portion, using each of the second bit sequences (320), according to the PWM technique. According to one embodiment, the method may include an operation of displaying the image (300) based on the light emission of each of the first light emitting elements and the light emission of each of the second light emitting elements. According to one embodiment, a bit depth of each of the first bit sequences (310) may be higher than a bit depth of each of the second bit sequences (320).

[0128] According to one embodiment, the first portion (301) may be identified based on the position of the user's gaze identified from images acquired through at least one camera of the wearable device (100) facing the user's eyes.

[0129] According to one embodiment, the method may include an operation of displaying the image (300) by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences (310) and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the second bit sequences (320), while the remaining capacity of the rechargeable battery of the wearable device (100) is less than a reference capacity. According to one embodiment, the method may include an operation of displaying the image (300) by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences (310) and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the third bit sequences having a bit depth identical to the bit depth of each of the first bit sequences (310), while the remaining capacity is equal to or greater than the reference capacity.

[0130] According to one embodiment, the method may include an operation of identifying the first portion (301) from the information.

[0131] According to one embodiment, the method may include an operation of displaying the image (300) by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences (310) and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the second bit sequences (320), while a brightness level of a portion of an environment around the wearable device (100) provided together with the image (300) is lower than a reference brightness level. According to one embodiment, the method may include an operation of displaying the image (300) by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences (310) and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the third bit sequences having a bit depth equal to the bit depth of each of the first bit sequences (310), while the brightness level is equal to or higher than the reference brightness level.

[0132] Electronic devices according to the various embodiments disclosed in this document may take various forms. Electronic devices may include, for example, portable communication devices (e.g., smartphones), computer devices, portable multimedia devices, portable medical devices, cameras, wearable devices, or home appliances. Electronic devices according to the embodiments of this document are not limited to the aforementioned devices.

[0133] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0134] The term "module" used in various embodiments of this document may include a unit implemented in hardware, software, or firmware, and may be used interchangeably with terms such as logic, logic block, component, or circuit. A module may be an integral component, or a minimum unit or part of such a component that performs one or more functions. For example, according to one embodiment, a module may be implemented in the form of an application-specific integrated circuit (ASIC).

[0135] Various embodiments of the present document may be implemented as software (e.g., a program (840)) including one or more instructions stored in a storage medium (e.g., an internal memory (836) or an external memory (838)) readable by a machine (e.g., an electronic device (801)). For example, a processor (e.g., a processor (820)) of the machine (e.g., an electronic device (801)) may call at least one instruction among the one or more instructions stored from the storage medium and execute it. This enables the machine to operate to perform at least one function according to the at least one called instruction. The one or more instructions may include code generated by a compiler or code executable by an interpreter. The machine-readable storage medium may be provided in the form of a non-transitory storage medium. Here, 'non-transitory' simply means that the storage medium is a tangible device and does not contain signals (e.g., electromagnetic waves), and the term does not distinguish between cases where data is stored semi-permanently or temporarily on the storage medium.

[0136] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0137] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In a wearable device (100), A display (120) including a driving layer formed on a silicon substrate and a light-emitting layer on the driving layer; and Contains a processor (110), The above display (120) is Receive information about the image (300) from the above processor (110) through the above driving layer, Using each of the first bit sequences (310), each of the first light-emitting elements in the light-emitting layer is made to emit light according to the PWM (pulse width modulation) technique for displaying the first part (301) of the image (300) identified according to the gaze of the user wearing the wearable device (100). Using each of the second bit sequences (320), each of the second light-emitting elements in the light-emitting layer for displaying the second part (302) of the image (300) around the first part (301) is made to emit light according to the PWM technique. It is configured to display the image (300) based on the light emission of each of the first light emitting elements and the light emission of each of the second light emitting elements, The bit depth of each of the above first bit sequences (310) is: Higher than the bit depth of each of the above second bit sequences (320), Wearable devices.

2. In claim 1, the display (120) It comprises a plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, and a plurality of memory cells each connected to the plurality of light-emitting elements, The above display (120) is Each of the plurality of bit sequences obtained from the information received from the processor (110) is stored in each of the plurality of memory cells, Obtaining each of the plurality of bit sequences from each of the plurality of memory cells, Each of the first bit sequences (310) is obtained by adding one or more bits to each of the first set of bit sequences obtained from some of the plurality of memory cells each connected to the first light-emitting elements, Obtaining each of the second bit sequences (320) by bypassing adding one or more bits to each of the second set of bit sequences obtained from another part of the plurality of memory cells respectively connected to the second light-emitting elements, Using each of the first bit sequences (310) above, each of the first light-emitting elements emits light, Each of the second light-emitting elements is configured to emit light using each of the second bit sequences (320). Wearable devices.

3. In claim 2, one or more bits in each of the first bit sequences (310) are: located behind the least significant bit (LSB) of each of the bit sequences of the first set, Wearable devices.

4. In claim 2, one or more bits in each of the first bit sequences (310) are: located in front of the MSB (most significant bit) of each of the bit sequences of the first set, Wearable devices.

5. In claim 2, each of the plurality of light-emitting elements, Connected to each of the plurality of memory cells through a circuit for pulse width modulation, The above display (120) is By providing each of the first bit sequences (310) to the circuit connected to each of the first light-emitting elements, each of the first light-emitting elements emits light, configured to cause each of the second light-emitting elements to emit light by providing each of the second bit sequences (320) to the circuit connected to each of the second light-emitting elements. Wearable devices.

6. In claim 2, the display (120) Including a plurality of memory cells and other memory, One or more of the above bits, Obtained from the above memory, The size of each of the above first bit sequences (310) is greater than the maximum storage size of each of the above plurality of memory cells, Wearable devices.

7. In claim 1, the display (120) A plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, a plurality of memory cells each connected to the plurality of light-emitting elements, and a memory different from the plurality of memory cells, Among the plurality of memory cells, the first set of memory cells each connected to the first light-emitting elements, Together with the above memory, each of the first bit sequences (310) is used to obtain, Among the plurality of memory cells, the second set of memory cells each connected to the second light-emitting elements, It is used to obtain each of the above second bit sequences (320), The above memory is, Used to obtain each of the first bit sequences (310) among the first bit sequences (310) and the second bit sequences (320), Wearable devices.

8. In claim 1, the display (120) A plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, a plurality of memory cells each connected to the plurality of light-emitting elements, and a memory different from the plurality of memory cells, The above plurality of memory cells are, A first set of memory cells each connected to the first light-emitting elements, and a second set of memory cells each connected to the second light-emitting elements, The above display (120) is By adding one or more bits obtained from the memory to each of the first set of bit sequences obtained from each of the first set of memory cells, the first bit sequences (310) are obtained, and each of the first light-emitting elements is made to emit light using each of the first bit sequences (310). The second set of bit sequences obtained from the second set of memory cells are respectively acquired as the second bit sequences (320), and each of the second light-emitting elements is configured to emit light using each of the second bit sequences (320). Wearable devices.

9. In claim 1, the display (120) A plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, a plurality of memory cells each connected to the plurality of light-emitting elements, and a memory different from the plurality of memory cells, The above display (120) is From the information received from the above processor (110), a plurality of bit sequences are obtained, By adding one or more bits to each of the first set of bit sequences to be stored in some of the plurality of memory cells respectively connected to the first light-emitting elements among the plurality of bit sequences, each of the first bit sequences (310) is obtained, Among the plurality of bit sequences, a second set of bit sequences to be stored in another part of the plurality of memory cells each connected to the second light-emitting elements is obtained as the second bit sequences (320), storing one or more bits that are part of each of the first bit sequences (310) in the memory, Store each of the bit sequences of the first set, which is a remaining part of each of the first bit sequences (310), in each of the memory cells of the first set, which is a part of the plurality of memory cells, Store each of the second bit sequences (320) in each of the second set of memory cells, which is another part of the plurality of memory cells, By using each of the first bit sequences (310) obtained by adding one or more bits obtained from the memory to each of the first set of bit sequences obtained from each of the first set of memory cells, each of the first light-emitting elements emits light, Each of the second light-emitting elements is configured to emit light using each of the second bit sequences (320) obtained from each of the memory cells of the second set. Wearable devices.

10. In claim 1, the display (120) A plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, a plurality of memory cells each connected to the plurality of light-emitting elements, and a memory different from the plurality of memory cells, The above display (120) is From the information received from the processor (110), a plurality of bit sequences including the first bit sequences (310) and the second bit sequences (320) are obtained, Store a portion of each of the above first bit sequences (310) in the memory, Store the remaining portion of each of the first bit sequences (310) in each of the first set of memory cells, which are part of the plurality of memory cells, each of which is connected to the first light-emitting elements; Each of the second bit sequences (320) is stored in each of the second set of memory cells, which are another part of the plurality of memory cells, each of which is connected to the second light-emitting elements, By using each of the first bit sequences (310) obtained by adding each of the first bit sequences (310) obtained from the memory to the remaining part of each of the first bit sequences (310) obtained from each of the memory cells of the first set, each of the first light-emitting elements emits light, Each of the second light-emitting elements is configured to emit light using each of the second bit sequences (320) obtained from each of the memory cells of the second set. Wearable devices.

11. In claim 1, the display (120) It comprises a plurality of light-emitting elements including the first light-emitting elements and the second light-emitting elements, and a plurality of memory cells each connected to the plurality of light-emitting elements, The above display (120) is From the information received from the above processor (110), a plurality of bit sequences are obtained, Identifying a first set of bit sequences and a second set of bit sequences among the above plurality of bit sequences, Store the bit sequences of the first set in the first set of memory cells, which are part of the plurality of memory cells, each of which is connected to the first light-emitting elements as the first bit sequences (310), The second bit sequences (320) obtained by removing one or more bits from each of the second set of bit sequences are stored in the second set of memory cells, which are another part of the plurality of memory cells, respectively connected to the second light-emitting elements, Each of the first light-emitting elements emits light using each of the first bit sequences (310) obtained from each of the memory cells of the first set, Each of the second light-emitting elements is configured to emit light using each of the second bit sequences (320) obtained from each of the memory cells of the second set. Wearable devices.

12. In claim 1, further comprising at least one camera directed toward the eye of the user; The above first part (301) is, Identified based on the position of the user's gaze identified from images acquired through at least one camera, Wearable devices.

13. In claim 1, Including a rechargeable battery, The above display (120) is While the remaining capacity of the battery is less than the reference capacity, the image (300) is displayed by causing each of the first light-emitting elements to emit light according to the PWM technique using each of the first bit sequences (310) and causing each of the second light-emitting elements to emit light according to the PWM technique using each of the second bit sequences (320). While the remaining capacity is greater than or equal to the reference capacity, the image (300) is displayed by emitting light according to the PWM technique using each of the first bit sequences (310) and emitting light according to the PWM technique using each of the third bit sequences having the same bit depth as the bit depth of each of the first bit sequences (310). Wearable devices.

14. In claim 1, the display (120) Further configured to identify the first part (301) from the above information, Wearable devices.

15. A method for executing a display (120) of a wearable device (100) including a processor (110), An operation of receiving information about an image (300) from the above processor (110), An operation of emitting light according to a PWM (pulse width modulation) technique by using each of the first bit sequences (310) to display the first part (301) of the image (300) identified according to the gaze of a user wearing the wearable device (100) in the light emitting layer of the display (120) of the wearable device (100), An operation of causing each of the second light-emitting elements in the light-emitting layer to emit light according to the PWM technique for displaying the second part (302) of the image (300) around the first part (301) using each of the second bit sequences (320); An operation of displaying the image (300) based on the light emission of each of the first light emitting elements and the light emission of each of the second light emitting elements is included. The bit depth of each of the above first bit sequences (310) is: Higher than the bit depth of each of the above second bit sequences (320), method.

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