Electronic device, method, and storage medium for adjusting color gamut of display panel

Abstract

This electronic device may comprise a display panel and a display driving circuit. The display panel may comprise: a first layer including a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions; and a second layer disposed under the first layer and including first sub-pixels respectively disposed under the first light-transmitting portions, and second sub-pixels respectively disposed under the second light-transmitting portions. The display driving circuit may be configured to: on the basis of controlling the second sub-pixels to emit light, display a screen according to a privacy display mode; detect an event for adjusting the color temperature of the display panel; and on the basis of the event, identify a sub-pixel from among the first sub-pixels and control the identified sub-pixel from among the first sub-pixels to further emit light so as to adjust the color temperature.

Description

Electronic device, method, and storage medium for adjusting the color gamut of a display panel

[0001] The following descriptions relate to electronic devices, methods, and storage media for adjusting the color gamut of a display panel.

[0002] An electronic device may display visual information through a display panel. For example, the visual information may be displayed through pixels within the display panel. For example, each of the pixels may include at least one first sub-pixel emitting light having a first color, at least one second sub-pixel emitting light having a second color, and at least one third sub-pixel emitting light having a third color.

[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-described matters constitute prior art related to the present disclosure.

[0004] An electronic device may include a display panel. The display panel may include a first layer including a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions. The display panel may include a second layer disposed under the first layer. The second layer may include first sub-pixels disposed under each of the first light-transmitting portions and configured to emit light, and second sub-pixels disposed under each of the second light-transmitting portions and configured to emit light. A viewing angle according to the second sub-pixels and the second light-transmitting portions may be narrower than a viewing angle according to the first light-transmitting portions and the first sub-pixels. The electronic device may include a display driving circuit. The display driving circuit may be configured to display a screen through the display panel in a privacy display mode based on controlling the second sub-pixels to emit light. The display driving circuit may be configured to detect an event for adjusting a color temperature of the display panel with respect to the screen. The display driving circuit may be configured to adjust the color temperature of the display panel with respect to the screen by identifying one (a) subpixel among the first subpixels based on the event and controlling the identified subpixel among the first subpixels to emit further light.

[0005] An electronic device may include a display panel. The display panel may include a first layer including a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions. The display panel may include a second layer disposed under the first layer. The second layer may include first sub-pixels disposed under each of the first light-transmitting portions and configured to emit light, and second sub-pixels disposed under each of the second light-transmitting portions and configured to emit light. A viewing angle according to the second sub-pixels and the second light-transmitting portions may be narrower than a viewing angle according to the first light-transmitting portions and the first sub-pixels. The electronic device may include a display driving circuit. The display driving circuit may be configured to display a screen through the display panel according to a privacy display mode by controlling the first sub-pixels to refrain from emitting light and controlling the second sub-pixels to emit light. The display driving circuit may be configured to adjust the color temperature of the display panel with respect to the screen displayed through the display panel according to the privacy display mode by controlling one (a) of the first sub-pixels to emit light and controlling the second sub-pixels to emit light based on detecting an event.

[0006] An electronic device may include a display panel. The display panel may include a first layer including a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions. The display panel may include a second layer disposed under the first layer. The second layer may include first sub-pixels disposed under each of the first light-transmitting portions and configured to emit light, and second sub-pixels disposed under each of the second light-transmitting portions and configured to emit light. A viewing angle according to the second sub-pixels and the second light-transmitting portions may be narrower than a viewing angle according to the first light-transmitting portions and the first sub-pixels. The electronic device may include a display driving circuit. The display driving circuit may be configured to display a screen having a first viewing angle through the display panel according to a normal display mode by controlling the first sub-pixels to emit light and the second sub-pixels to emit light. The display driving circuit may be configured to display a screen having a second viewing angle narrower than the first viewing angle by controlling the first sub-pixels to refrain from emitting light and the second sub-pixels to emit light within a first time interval of a time period, and controlling the first sub-pixels to refrain from emitting light and the second sub-pixels to refrain from emitting light within a second time interval of the time period, according to a privacy display mode different from the normal display mode.

[0007] Figure 1 illustrates an example of changing the viewing angle of a screen displayed on a display panel.

[0008] Figure 2 is a schematic view of an exemplary electronic device.

[0009] Figure 3 illustrates an example configuration of a display panel of an electronic device.

[0010] FIG. 4 is a cross-sectional view of a display panel according to an example configuration of FIG. 3.

[0011] Figure 5 illustrates another configuration example of a display panel of an electronic device.

[0012] Fig. 6 is a cross-sectional view of a display panel according to an example configuration of Fig. 5.

[0013] FIG. 7a shows examples of graphs representing the spectral power distribution (SPD) of first sub-pixels and second sub-pixels.

[0014] Figure 7b shows an example of a graph representing a color matching function.

[0015] Figure 7c shows an example of a graph representing WSPD (wide-SPD).

[0016] FIG. 8a illustrates an example of a method for providing WSPD when performing color temperature adjustment while displaying a screen according to a privacy display mode.

[0017] FIG. 8b illustrates examples of graphs representing WSPD provided by utilizing one sub-pixel identified among the first sub-pixels for color temperature adjustment.

[0018] FIG. 9 illustrates an example of a method for providing WSPD by emitting first sub-pixels at a specific brightness level while displaying a screen according to a privacy display mode.

[0019] FIG. 10 illustrates an example of a method for providing a WSPD by emitting light using grayscale levels determined based on the grayscale levels of second subpixels while displaying a screen according to a privacy display mode.

[0020] FIG. 11A illustrates an example of a method for providing a WSPD by alternately emitting first sub-pixels and second sub-pixels while displaying a screen according to a privacy display mode.

[0021] FIG. 11b illustrates an example of first sub-pixels and second sub-pixels that alternately light up while displaying a screen according to a privacy display mode.

[0022] FIG. 12 illustrates an example of an operational flow for a method of providing WSPD when an electronic device performs color temperature adjustment while displaying a screen according to a privacy display mode.

[0023] FIG. 13 is a block diagram of an electronic device within a network environment according to various embodiments.

[0024] FIG. 14 is a block diagram of a display module according to various embodiments.

[0025] Figure 15 is a schematic diagram of an exemplary AI (artificial intelligence) system.

[0026] The terms used in this disclosure are used only to describe specific embodiments and may not be intended to limit the scope of other embodiments. The singular expression may include plural expressions unless the context clearly indicates otherwise. Terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by those of ordinary skill in the art described in this disclosure. Terms defined in general dictionaries among the terms used in this disclosure may be interpreted as having the same or similar meaning in the context of the relevant technology, and shall not be interpreted in an idealized or overly formal sense unless explicitly defined in this disclosure. In some cases, even if a term is defined in this disclosure, it cannot be interpreted to exclude embodiments of the present disclosure.

[0027] The various embodiments of the present disclosure described below illustrate a hardware-based approach as an example. However, since the various embodiments of the present disclosure include techniques utilizing both hardware and software, the various embodiments of the present disclosure do not exclude a software-based approach.

[0028] In addition, in the present disclosure, expressions such as "more than" or "less than" may be used to determine whether a specific condition is satisfied or fulfilled. However, this is merely a description for expressing an example and does not exclude descriptions such as "more than" or "less than." Conditions described as "more than" may be replaced with "more than," conditions described as "less than," and conditions described as "more than and less than" may be replaced with "more than and less than." In addition, hereinafter, "A" to "B" mean at least one of the elements from A (including A) to B (including B).

[0029] Figure 1 illustrates an example of changing the viewing angle of a screen displayed on a display panel.

[0030] Referring to FIG. 1, an electronic device (101) may display a screen (110) on a display panel (160). The screen (110) may include one or more contents (or one or more media contents). The screen (110) may include one or more visual objects. The screen (110) may be displayed on the display panel (160) to provide information.

[0031] For example, the electronic device (101) may have various form factors, such as a smartphone, a laptop personal computer (PC), a tablet PC, a head-mounted display (HMD) device, a watch, and other computing devices. The electronic device (101) may be referred to as a mobile device, a user terminal, a user equipment (UE), a multi-function device, a portable communication device, and / or a portable device. The form factor of the electronic device (101) is not limited to the exemplary form factor illustrated in FIG. 1 (e.g., an electronic device including a bar-type display panel (160). In one example, the electronic device (101) may be a device including a display panel (160) that is a flexible display. For example, the electronic device (101) may be referred to as a foldable electronic device, a rollable electronic device, or a multi-foldable electronic device.

[0032] A display driving circuit (e.g., a display driving circuit (221) of FIG. 2 or a display driver IC (1430) of FIG. 14) can display a screen (110) having a viewing angle (181) on a display panel (160). For example, the viewing angle (181) of the screen (110) may be wider than the viewing angle (182) of the screen (110) described below. For example, the screen (110) having the viewing angle (181) may be displayed on the display panel (160) according to the normal display mode. For example, the viewing angle (181) may be wider than a critical viewing angle.

[0033] The electronic device (101) may provide a function (or feature) for user privacy with respect to the display on the display panel (160). For example, the electronic device (101) may provide a privacy display mode that narrows the viewing angle of at least a portion of the screen (110) displayed on the display panel (160) for the function. For example, the privacy display mode may be described as a display mode for reducing the probability that information within a screen (e.g., screen (110)) displayed on the display panel (160) will be visible to another user who is distinct from the user of the electronic device (101). For example, the privacy display mode may be described as a display mode for reducing the probability that information within a screen displayed on the display panel (160) will be visible from a second space around a first space in front of the display panel (160). For example, the privacy display mode may be described as a display mode for reducing visibility from the second space. For example, the display driving circuit can display a screen (110) having a viewing angle (182) (e.g., narrower than or equal to the critical viewing angle) on the display panel (160) according to the privacy display mode. The privacy display mode can be changed or switched from the normal display mode. For example, the display driving circuit can change the display of the screen (110) having a viewing angle (181) to the display of the screen (110) having a viewing angle (182) based on the privacy display mode changed from the normal display mode.For example, the display driving circuit can stop (or terminate) (or deactivate) displaying a screen (110) having a viewing angle (181) and display a screen (110) having a viewing angle (182) based on changing the normal display mode to the privacy display mode.

[0034] For example, the display panel (160) may include a display area (or active area) used for displaying a screen. The field of illumination (FOI) of light emitted from a portion of the display area may be different from the FOI of light emitted from another portion of the display area. For example, as described below, the display panel (160) may include a first layer including an opaque member (or black matrix) (or opaque material) including first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions. For example, the opaque member (or black matrix) may define the first light-transmitting portions and the second light-transmitting portions. For example, the opaque member of the first layer may include black matrix (BM) portions such that light emitted from the second sub-pixels is partially blocked by portions of the BM portions defining the second light-transmitting portions. The display panel (160) may include a second layer disposed below the first layer, including light-emitting elements (or light-emitting portions) disposed below each of the first light-transmitting portions, and light-emitting elements (or light-emitting portions) disposed below each of the second light-transmitting portions.

[0035] For example, the display panel (160) may include a first pixel including light-emitting elements within the second layer disposed below each of the first light-transmitting portions. For example, the first pixel may include sub-pixels (or first sub-pixels). The sub-pixels within the first pixel may each include the light-emitting elements within the first pixel disposed below each of the first light-transmitting portions. Each of the sub-pixels within the first pixel may include transistors configured to control the light-emitting elements included within each of the sub-pixels within the first pixel. For example, the sub-pixels within the first pixel may be aligned with each of the first light-transmitting portions. For example, the sub-pixels within the first pixel may be positioned within each of the first light-transmitting portions when viewed on the display panel (160). For example, the sub-pixels within the first pixel may overlap each of the first light-transmitting portions. For example, each of the first light-transmitting portions may overly the sub-pixels within the first pixel.

[0036] For example, the display panel (160) may include second pixels including light-emitting elements within the second layer, each disposed below the second light-transmitting portions. The second pixels may be included within the display panel (160) for the privacy display mode. For example, the second pixels may include sub-pixels (or second sub-pixels). The sub-pixels within the second pixel may each include the light-emitting elements within the second pixel, each disposed below the second light-transmitting portions. Each of the sub-pixels within the second pixel may include transistors configured to control the light-emitting elements included within each of the sub-pixels within the second pixel. For example, the sub-pixels within the second pixel may be aligned with each of the second light-transmitting portions. For example, the sub-pixels within the second pixel may be positioned within each of the second light-transmitting portions when viewed on the display panel (160). For example, the sub-pixels within the second pixel may overlap each of the second light-transmitting portions. For example, each of the second light-transmitting portions may overly the sub-pixels within the second pixel.

[0037] For example, since the second light-transmitting portions are smaller than the first light-transmitting portions, the FOI of light emitted through the second pixel may be narrower than the FOI of light emitted through the first pixel.

[0038] As a non-limiting example, the electronic device (101) may control the display panel (160) to emit light through the first pixel and emit light through the second pixel in order to perform (or execute) a display on the display panel (160) according to the normal display mode. As a non-limiting example, the electronic device (101) may control the display panel (160) to refrain from emitting light through the first pixel and to emit light through the second pixel in order to perform (or execute) a display on the display panel (160) according to the privacy display mode. For example, the second pixel may be used for both the normal display mode and the privacy display mode, relative to the first pixel used for the normal display mode.

[0039] As a non-limiting example, since the display panel (160) includes the second pixel, the position range in which information within the screen displayed on the display panel (160) can be recognized according to the normal display mode may be narrower than the position range in which information within the screen displayed on the display panel including only the first pixel can be recognized.

[0040] Figure 2 is a schematic view of an exemplary electronic device.

[0041] Referring to FIG. 2, the electronic device (101) may include at least one processor (210) including a processing circuit, a display (220), and a memory (230). The electronic device (101) may include at least a portion of the electronic device (1301) of FIG. 13 or may correspond to at least a portion of the electronic device (1301) of FIG. 13.

[0042] At least one processor (210) may include at least a portion of the processor (1320) of FIG. 13 or may correspond to at least a portion of the processor (1320) of FIG. 13. The at least one processor (210) may include a central processing unit (CPU) (211) (e.g., including a processing circuit) and a display processing unit (DPU) (212) (e.g., including a processing circuit). As a non-limiting example, the at least one processor (210) may further include a graphics processing unit (GPU) (e.g., including a processing circuit). The at least one processor (210) may be configured to execute instructions stored in a memory (230).

[0043] As a non-limiting example, at least one processor (210) may perform at least some of the operations described below using a trained model (e.g., a generative artificial intelligence (AI) model (1530) of FIG. 15). For example, at least one processor (210) may determine, using the trained model, to change the normal display mode to the privacy display mode, and / or to change the privacy display mode to the normal display mode.

[0044] As a non-limiting example, at least one processor (210) may provide sensing data acquired using at least one sensor (not shown) of the electronic device (101) to the trained model. For example, the at least one sensor may include an acceleration sensor, a position sensor (e.g., GPS), an illuminance sensor, a geomagnetic sensor, or a pressure sensor. In the example, the sensing data may further include, in addition to the data acquired using the at least one sensor, the intensity of a signal (or a radio frequency (RF) signal) received through an antenna of the electronic device (101), or data acquired using a microphone. For example, the at least one processor (210) may analyze the sensing data using the trained model, thereby outputting a result indicating a state of a user of the electronic device (101). For example, the state may include whether the user is moving. For example, at least one processor (210) may use the result to determine whether to change the normal display mode to the privacy display mode and / or to change the privacy display mode to the normal display mode.

[0045] As a non-limiting example, at least one processor (210) may calculate eye fatigue of the user by measuring the usage time, brightness, or color temperature of the display (220) (or display panel (160)), and the illuminance outside the electronic device (101) using the trained model. For example, when the electronic device (101) is used for a long time in a low-illuminance environment, the eye fatigue may increase. For example, at least one processor (210) may, based on determining, using the trained model, that the eye fatigue has increased, transmit a command to the display driving circuit (221) to perform operations for providing a wide spectral power distribution (WSPD) to reduce the eye fatigue, as described below, within the privacy display mode.

[0046] As a non-limiting example, at least one processor (210) can dynamically adjust the refresh rate (or driving frequency) of the display panel (160) by analyzing image data to be displayed on the display (220) using the trained model. For example, when a dynamic image with relatively many changes is played, at least one processor (210) can provide an improved viewing experience by providing a command to the display driver circuit (221) to increase the refresh rate using the trained model. For example, when a static image with relatively little change is played, at least one processor (210) can provide an command to the display driver circuit (221) to decrease the refresh rate using the trained model, thereby reducing power consumption. Even in this case, the display driver circuit (221) can provide WSPD.

[0047] As a non-limiting example, at least one processor (210) may determine an adjusted brightness (or brightness level) of the display panel (160) using the trained model based on the sensing data including illuminance and / or brightness. For example, at least one processor (210) may simultaneously provide a privacy protection function and a function for reducing eye fatigue even at relatively low brightness by adjusting the saturation and contrast of the display panel (160).

[0048] As a non-limiting example, at least one processor (210) may transmit, to the display driving circuit (221), at least one first command indicating the privacy display mode based on a determination to change the normal display mode to the privacy display mode. For example, the display driving circuit (221) may change the normal display mode to the privacy display mode based on the at least one first command. As a non-limiting example, at least one processor (210) may transmit, to the display driving circuit (221), at least one second command indicating the normal display mode based on a determination to change the privacy display mode to the normal display mode. For example, the display driving circuit (221) may change the privacy display mode to the normal display mode based on the at least one second command.

[0049] The display (220) may include at least a portion of the display module (1360) of FIG. 13 or correspond to at least a portion of the display module (1360) of FIG. 13. The display (220) may include a display driver circuitry (or display driver integrated circuitry) (221) and a display panel (160). The display driver circuitry (221) may include at least a portion of the display driver IC (1430) of FIG. 14 or correspond to at least a portion of the display driver IC (1430) of FIG. 14. As a non-limiting example, the display driver circuitry (221) may perform at least a portion of the operations described below using a trained model (e.g., a generative artificial intelligence (AI) model (1530) of FIG. 15). The display panel (160) may include at least a portion of the display panel (1410) of FIG. 14 or may correspond to at least a portion of the display panel (1410) of FIG. 14.

[0050] The display (220) may operate or be driven for command mode, video mode, hybrid video mode, and / or adaptive refresh panel (ARP) of MIPI (mobile industry processor interface) DSI (display serial interface).

[0051] The memory (230) may include one or more storage media. For example, the one or more storage media may include a hard drive, flash memory, permanent memory such as read-only memory (ROM), semi-permanent memory such as random access memory (RAM), any other suitable type of storage assembly, or any combination thereof. The memory (230) may include a cache memory, which is one or more different types of memory used to temporarily store data for the function or feature of the electronic device (101). The memory (230) may be fixedly embedded within the electronic device (101) or incorporated into one or more suitable types of components (e.g., a subscriber identity module (SIM) card and / or a secure digital (SD) memory card) that can be repeatedly inserted into and removed from the electronic device (101). For example, the memory (230) may include at least a portion of the memory (1330) of FIG. 13 or correspond to at least a portion of the memory (1330) of FIG. 13.

[0052] The memory (230) may store one or more software applications, such as an operating system software application, a firmware software application, a media playback software application, a media editing software application, a software application for communicating with other users, a translation software application, a digital assistant software application, and / or any other suitable software applications. For example, the one or more software applications may include instructions executable by at least a portion of at least one processor (210).

[0053] For example, the display panel (160) within the display (220) may have a structure for adjusting the viewing angle of a screen (e.g., screen (110)) displayed on the display panel (160). The structure is described in more detail with reference to FIGS. 3 to 6.

[0054] Figure 3 illustrates an example configuration of a display panel of an electronic device.

[0055] Referring to FIG. 3, the display panel (160) may include a plurality of pixels. Each of the pixels may include sub-pixels. The sub-pixels may include a first sub-pixel (350-1) configured to emit light with a first color (e.g., red), a second sub-pixel (350-2) configured to emit light with a second color (e.g., green), and a third sub-pixel (350-3) configured to emit light with a third color (e.g., blue). The sub-pixels may further include a fourth sub-pixel (not shown) configured to emit light with a fourth color (e.g., white).

[0056] The field of illumination (FOI) of light emitted from one or more of the pixels may be wider than the FOI of light emitted from one or more other of the pixels. For example, the one or more of the pixels may include pixel (311) and pixel (312). For example, the other one or more of the pixels may include pixel (321) and pixel (322).

[0057] For example, one or more of the pixels may be positioned within (or within) a first set (310) of regions within the active area (or display area) of the display panel (160), such as pixels (311) and (312). For example, one or more of the pixels may be positioned within (or within) a second set (320) of regions within the active area of ​​the display panel (160), such as pixels (321) and (322). As a non-limiting example, the regions included within the first set (310) of regions and the regions included within the second set (320) of regions may alternate with each other. As a non-limiting example, the regions included within the first set (310) of regions and the regions included within the second set (320) of regions may be included within the active area in an interleaved arrangement.

[0058] The display panel (160) may include an opaque member within another layer (e.g., another layer (402) of FIG. 4) of the display panel (160) disposed above a layer of the display panel (160) including the pixels (e.g., layer (401) of FIG. 4) to narrow (or reduce) the FOI of light emitted from the other one or more of the pixels compared to the FOI of light emitted from the one or more of the plurality of pixels. The opaque member within the other layer of the display panel (160) may be structured to narrow the viewing angle of at least a portion of a screen (e.g., screen (110)) displayed on the display panel (160). The opaque member within the other layer of the display panel (160) may partially overlying one or more of the pixels and may not overlying the other one or more of the pixels. The opaque member disposed within the other layer of the display panel (160) according to the configuration example of FIG. 3 is described in more detail with reference to FIG. 4.

[0059] FIG. 4 is a cross-sectional view of a display panel according to an example configuration of FIG. 3.

[0060] Referring to FIG. 4, the display panel (160) may include a layer (401) and another layer (402) disposed (or positioned) on the layer (401). The layer (401) of the display panel (160) may be described as a light-emitting layer (401). The other layer (402) of the display panel (160) may be described as a masking layer (402) (or mask layer (402)) (or black matrix layer (402)).

[0061] A layer (401) of a display panel (160) may include a pixel (311) positioned within a region (492) included within a first set (310) of regions and a pixel (321) positioned within a region (491) included within a second set (320) of regions. The pixel (311) may include a sub-pixel (411) and a sub-pixel (412). The pixel (321) may include a sub-pixel (421) and a sub-pixel (422).

[0062] The layer (401) of the display panel (160) may include a pixel definition layer (PDL) (441). The PDL (441) may define the periphery of the pixel (311) and the periphery of the pixel (321). The PDL (441) may define the periphery of the subpixel (411) within the pixel (311) and the periphery of the subpixel (412) within the pixel (311). The PDL (441) may define the periphery of the subpixel (421) within the pixel (321) and the periphery of the subpixel (422) within the pixel (321). For example, the PDL (441) may be disposed between the pixel (311) and the pixel (321), between the subpixel (411) and the subpixel (412), and between the subpixel (421) and the subpixel (422).

[0063] As a non-limiting example, the width (w1) of a sub-pixel (411) defined by a PDL (441) may be equal to the width (w2) of a sub-pixel (421) defined by a PDL (441). For example, when the color of light emitted from a sub-pixel (411) is equal to the color of light emitted from a sub-pixel (421), the width (w1) of the sub-pixel (411) may be equal to the width (w2) of the sub-pixel (421). When the color of light emitted from a sub-pixel (411) is different from the color of light emitted from a sub-pixel (421), the width (w1) of the sub-pixel (411) may be narrower than the width (w2) of the sub-pixel (421). As a non-limiting example, the width (w1) of a sub-pixel (411) defined by a PDL (441) may be wider than the width (w2) of a sub-pixel (421) defined by a PDL (441). For example, when the color of light emitted from a sub-pixel (411) is the same as the color of light emitted from a sub-pixel (421), the width (w1) of the sub-pixel (411) may be the same as the width (w2) of the sub-pixel (421).

[0064] Another layer (402) of the display panel (160) may include an opaque member (430) (or a black matrix (430)). The opaque member (430) may be included in the other layer (402) of the display panel (160) for the privacy display mode. For example, the opaque member (430) may be partially overlaid on the pixel (321) and not overlaid on the pixel (311) to narrow the FOI of the light emitted from the pixel (321) to that of the light emitted from the pixel (311). For example, the opaque member (430) may partially overlap the pixel (321) among the pixels (311) and (321). For example, the opaque member (430) may be positioned above or over a portion of the PDL (441) that defines the pixel (321) and sub-pixels (e.g., sub-pixel (421) and sub-pixel (422)) within the pixel (321), and may not be positioned over another portion of the PDL (441) that defines the pixel (311) and sub-pixels (e.g., sub-pixel (411) and sub-pixel (412)) within the pixel (311). For example, the opaque member (430) may include an opening (431) (or a first light-transmitting portion (431) (or a first light-transmitting area (431)) disposed over the pixel (311) and openings (432) (or second light-transmitting portions (432)) (or second light-transmitting areas (432)) disposed over the pixel (321). The opening (431) may be aligned with the pixel (311). The opening (431) may overlap sub-pixels within the pixel (311). The opening (431) may surround the sub-pixels within the pixel (311) when the display panel (160) is viewed from above. The sub-pixels within the pixel (311) may be positioned within the opening (431) when the display panel (160) is viewed from above. The openings (432) may be aligned with the pixel (321). Each of the sub-pixels can be aligned with each other.The openings (432) may overlap with the sub-pixels within the pixel (321), respectively. The openings (432) may surround the sub-pixels within the pixel (321), respectively, when the display panel (160) is viewed from above. The sub-pixels within the pixel (321) may be respectively positioned within the openings (432), when the display panel (160) is viewed from above.

[0065] For example, the size of the aperture (431) may be larger than the size of each of the apertures (432). For example, the sub-pixels (e.g., sub-pixel (411) and sub-pixel (412)) within the pixel (311) may be positioned below the aperture (431) (or the first light-transmitting portion (431)). For example, each of the sub-pixels (e.g., sub-pixels (421) and (422)) within the pixel (321) may be positioned below each of the apertures (432) (or second light-transmitting portions (432)). The sub-pixels within the pixel (311) may be described as first sub-pixels positioned below one light-transmitting portion (e.g., first light-transmitting portion (431)) within the other layer (402), and the sub-pixels within the pixel (321) may be described as second sub-pixels positioned below other light-transmitting portions (e.g., second light-transmitting portions (432)) within the other layer (402) that are smaller than the light-transmitting portion (e.g., first light-transmitting portion (431)) within the other layer (402).

[0066] As a non-limiting example, the width (w3) of one of the apertures (432) may be equal to the width (w2) of the sub-pixel (421). As a non-limiting example, the width (w3) of one of the apertures (432) may be wider than the width (w2) of the sub-pixel (421). As a non-limiting example, the width (w3) of one of the apertures (432) may be narrower than the width (w2) of the sub-pixel (421).

[0067] As a non-limiting example, the display panel (160) may further include at least one layer disposed between the layer (401) and another layer (402).

[0068] For example, the at least one layer may include a color filter layer. The color filter layer may include an opaque member (460) including opaque portions positioned between the PDL (441) and the opaque member (430). For example, the opaque member (460) included in the color filter layer of the display panel (160) may include (or define) an opening (461) (or a light-transmitting portion (461)) corresponding to the opening (431) and openings (462) (or light-transmitting portions (462)) corresponding to the openings (432), respectively. The opaque member (460) defining the opening (461) and the openings (462) may be included in the display panel (160) to guide light emitted (or transmitted) toward each of the openings (432). For example, light from a sub-pixel (421) can be emitted (or transmitted) to an opening (432) aligned with the sub-pixel (421) by the opaque member (460). For example, light from a sub-pixel (422) can be emitted (or transmitted) to an opening (432) aligned with the sub-pixel (422) by the opaque member (460). The color filter layer can be disposed over, on, or above a touch layer between the layer (401) and another layer (402). The touch layer can be used to identify a touch input on the display panel (160).

[0069] For example, the at least one layer may include a layer disposed on the color filter layer. The layer disposed on the color filter layer may include an opaque member (460) including opaque portions positioned between the PDL (441) and the opaque member (430). For example, the opaque member (460) included in the layer of the display panel (160) disposed on the color filter layer of the display panel (160) may include an opening (461) (or a light-transmitting portion (461)) corresponding to the opening (431) and openings (462) (or light-transmitting portions (462)) corresponding to the openings (432), respectively. The opaque member (460) defining the opening (461) and the openings (462) may be included in the display panel (160) to guide light emitted (or transmitted) toward each of the openings (432). For example, light from a sub-pixel (421) can be emitted (or transmitted) to an opening (432) aligned with the sub-pixel (421) by the opaque member (460). For example, light from a sub-pixel (422) can be emitted (or transmitted) to an opening (432) aligned with the sub-pixel (422) by the opaque member (460). The color filter layer can be disposed between the layer including the opaque member (460) and a touch layer. The touch layer can be used to identify a touch input on the display panel (160).

[0070] At least one layer may include an additional opaque member (460) other than the opaque member (430) of the other layer (402). Accordingly, a double BM (black matrix) structure in which the opaque member is formed from multiple layers may be formed. In the example of FIG. 4, the width (or diameter), size, and position (or arrangement) of the opaque member (430) and the opaque member (460) may be the same. For example, each of the openings (461, 462) defined by the opaque member (460) may be substantially the same as each of the openings (431) and the openings (432) of the other layer (402). However, the present disclosure is not limited thereto. For example, each of the openings (461, 462) defined by the opaque member (460) may be different from the corresponding openings (431) and the openings (432). The width (or diameter), size, and central axis position (or alignment position) of the opening (431) and the openings (432) of the other layer (402) of the light-emitting portion (e.g., sub-pixel (411), sub-pixel (412), sub-pixel (421), sub-pixel (422)) of the layer (401) may be different from the width (or diameter), size, and central axis position of the openings (461, 462) of the opaque member (460) included in at least one layer.

[0071] The at least one layer may include the color filter layer including the opaque member (460) and another layer including the opaque member (460). As a non-limiting example, the width (or diameter), size, and position (or arrangement) of the opaque member (460) of the color filter layer, the opaque member (460) of the another layer, and the opaque member (430) of the other layer (402) may be the same as each other. As a non-limiting example, the width (or diameter), size, and position (or arrangement) of the opaque members of two layers among the opaque member (460) of the color filter layer, the opaque member (460) of the another layer, and the opaque member (430) of the other layer (402) may be the same as each other, and the width (or diameter), size, and position (or arrangement) of the opaque member of the remaining one layer may be different from the width (or diameter), size, and position (or arrangement) of the opaque members of the two layers.

[0072] Figure 5 illustrates another configuration example of a display panel of an electronic device.

[0073] Referring to FIG. 5, the display panel (160) may include a plurality of pixels. Each of the pixels may include first pixels (510) and second pixels (520). For example, the first pixels (510) may include pixels (511) and (512). For example, the second pixels (520) may include pixels (521) and (522). As a non-limiting example, the first pixels (510) and the second pixels (520) may be alternated with each other. As a non-limiting example, the first pixels (510) and the second pixels (520) may be arranged in an interleaved arrangement.

[0074] The first pixels (510) may include sub-pixels. The sub-pixels may include a first sub-pixel (550-1) configured to emit light in a first color (e.g., red), a second sub-pixel (550-2) configured to emit light in a second color (e.g., green), and a third sub-pixel (550-3) configured to emit light in a third color (e.g., blue). The sub-pixels may further include a fourth sub-pixel (not shown) configured to emit light in a fourth color (e.g., white).

[0075] The second pixels (520) may include sub-pixels. The sub-pixels may include a first sub-pixel (560-1) configured to emit light in a first color (e.g., red), a second sub-pixel (560-2) configured to emit light in a second color (e.g., green), and a third sub-pixel (560-3) configured to emit light in a third color (e.g., blue). The sub-pixels may further include a fourth sub-pixel (not shown) configured to emit light in a fourth color (e.g., white).

[0076] Each of the sub-pixels within each of the second pixels (520) may include portions that are spaced apart from each other. For example, the first sub-pixel (560-1) may include a first portion (560-1a) of the first sub-pixel (560-1), a second portion (560-1b) of the first sub-pixel (560-1), a third portion (560-1c) of the first sub-pixel (560-1), and a fourth portion (560-1d) of the first sub-pixel (560-1). The first portion (560-1a) of the first sub-pixel (560-1), the second portion (560-1b) of the first sub-pixel (560-1), the third portion (560-1c) of the first sub-pixel (560-1), and the fourth portion (560-1d) of the first sub-pixel (560-1) may be spaced apart from each other. A first part (560-1a) of the first sub-pixel (560-1), a second part (560-1b) of the first sub-pixel (560-1), a third part (560-1c) of the first sub-pixel (560-1), and a fourth part (560-1d) of the first sub-pixel (560-1) may be described as micropixels of the first sub-pixel (560-1). For example, a second sub-pixel (560-2) may include a first part (560-2a) of the second sub-pixel (560-2), a second part (560-2b) of the second sub-pixel (560-2), a third part (560-2c) of the second sub-pixel (560-2), and a fourth part (560-2d) of the second sub-pixel (560-2). The first part (560-2a) of the second sub-pixel (560-2), the second part (560-2b) of the second sub-pixel (560-2), the third part (560-2c) of the second sub-pixel (560-2), and the fourth part (560-2d) of the second sub-pixel (560-2) may be spaced apart from each other.For example, a first part (560-2a) of the second sub-pixel (560-2), a second part (560-2b) of the second sub-pixel (560-2), a third part (560-2c) of the second sub-pixel (560-2), and a fourth part (560-2d) of the second sub-pixel (560-2) may be described as micropixels of the second sub-pixel (560-2). For example, a third sub-pixel (560-3) may include a first part (560-3a) of the third sub-pixel (560-3), a second part (560-3b) of the third sub-pixel (560-3), a third part (560-3c) of the third sub-pixel (560-3), and a fourth part (560-3d) of the third sub-pixel (560-3). A first part (560-3a) of the third sub-pixel (560-3), a second part (560-3b) of the third sub-pixel (560-3), a third part (560-3c) of the third sub-pixel (560-3), and a fourth part (560-3d) of the third sub-pixel (560-3) may be spaced apart from each other. For example, a first part (560-3a) of the third sub-pixel (560-3), a second part (560-3b) of the third sub-pixel (560-3), a third part (560-3c) of the third sub-pixel (560-3), and a fourth part (560-3d) of the third sub-pixel (560-3) may be described as micropixels of the third sub-pixel (560-3).

[0077] For example, the FOI of light emitted from the second pixels (520) may be narrower than the FOI of light emitted from the first pixels (510). For example, to narrow (or reduce) the FOI of light emitted from the second pixels (520) more than the FOI of light emitted from the first pixels (510), the layer of the display panel (160) including the pixels may include a PDL that further defines the micropixels of the first subpixel (560-1), the micropixels of the second subpixel (560-2), and the micropixels of the third subpixel (560-3). For example, in order to narrow (or reduce) the FOI of light emitted from the second pixels (520) more than the FOI of light emitted from the first pixels (510), another layer (e.g., another layer (602) of FIG. 6) of the display panel (160) disposed on the layer (e.g., layer (601) of FIG. 6) of the display panel (160) including the pixels may include an opaque member. The opaque member in the other layer of the display panel (160) may partially overly one or more of the plurality of pixels and may not overly over the other or more of the plurality of pixels. The PDL in the layer of the display panel (160) and the opaque member in the other layer of the display panel (160) may be structures for narrowing the viewing angle of at least a portion of a screen (e.g., screen (110)) displayed on the display panel (160). The opaque member disposed within the other layer of the display panel (160) according to the configuration example of FIG. 5 is described in more detail with reference to FIG. 6.

[0078] Fig. 6 is a cross-sectional view of a display panel according to an example configuration of Fig. 5.

[0079] Referring to FIG. 6, the display panel (160) may include a layer (601) and another layer (602) disposed (or positioned) on the layer (601). The layer (601) of the display panel (160) may be described as a light-emitting layer (601). The other layer (602) of the display panel (160) may be described as a masking layer (602) (or mask layer (602)) (or black matrix layer (602)).

[0080] The layer (601) of the display panel (160) may include first pixels (510) and second pixels (520). The first pixels (510) may include a pixel (511). The pixel (511) may include a sub-pixel (611) and a sub-pixel (612). The second pixels (520) may include a pixel (521). The pixel (521) may include a sub-pixel (621) and a sub-pixel (622). The sub-pixel (621) may include a first portion (621-1) of the sub-pixel (621) and a second portion (621-2) of the sub-pixel (621). The sub-pixel (622) may include a first portion (622-1) of the sub-pixel (622) and a second portion (622-2) of the sub-pixel (622).

[0081] The layer (601) of the display panel (160) may include a pixel definition layer (PDL) (641). The PDL (641) may define the periphery of a pixel (511) and the periphery of a pixel (521). The PDL (641) may define the periphery of a subpixel (611) within a pixel (511) and the periphery of a subpixel (612) within a pixel (511). The PDL (641) may define the periphery of a subpixel (621) within a pixel (521) and the periphery of a subpixel (622) within a pixel (521). The PDL (641) may further define an edge of a first portion (621-1) of the sub-pixel (621) and an edge of a second portion (621-2) of the sub-pixel (621) relative to the PDL (441) (e.g., the PDL (441) of FIG. 4). The PDL (641) may further define an edge of a first portion (622-1) of the sub-pixel (622) and an edge of a second portion (622-2) of the sub-pixel (622) relative to the PDL (441) (e.g., the PDL (441) of FIG. 4). For example, the PDL (641) may be disposed between a pixel (511) and a pixel (521), disposed between a sub-pixel (611) and a sub-pixel (612), disposed between a sub-pixel (621) and a sub-pixel (622), disposed between a first part (621-1) of a sub-pixel (621) and a second part (621-2) of a sub-pixel (621), and disposed between a first part (622-1) of a sub-pixel (622) and a second part (622-2) of a sub-pixel (622).

[0082] As a non-limiting example, the width (w1) of a sub-pixel (611) defined by a PDL (641) may be wider than the width (w2) of a first portion (621-1) of a sub-pixel (621) defined by a PDL (641) and the width (w3) of a second portion (621-2) of a sub-pixel (621) defined by a PDL (641).

[0083] Another layer (602) of the display panel (160) may include an opaque member (630) (or a black matrix (630)). The opaque member (630) may be included in the other layer (602) of the display panel (160) for the privacy display mode. For example, the opaque member (630) may be partially overlaid on the pixel (521) and not overlaid on the pixel (511) to narrow the FOI of the light emitted from the pixel (521) compared to the FOI of the light emitted from the pixel (511). For example, the opaque member (630) may partially overlap the pixel (521) among the pixels (511) and (521). For example, the opaque member (630) may be positioned above or over a portion of the PDL (641) that defines the pixel (521) and sub-pixels (e.g., sub-pixel (621) and sub-pixel (622)) within the pixel (521), and may not be positioned over another portion of the PDL (641) that defines the pixel (511) and sub-pixels (e.g., sub-pixel (611) and sub-pixel (612)) within the pixel (511). For example, the opaque member (630) may be further disposed over a portion of the PDL (641) defining a first portion (621-1) of the sub-pixel (621) and a second portion (621-2) of the sub-pixel (621), and a portion of the PDL (641) defining a first portion (622-1) of the sub-pixel (622) and a second portion (622-2) of the sub-pixel (622), relative to the opaque member (430) (e.g., the opaque member (430) of FIG. 4).

[0084] For example, the opaque member (630) may include an opening (631) (or a light-transmitting portion (631)) disposed over a pixel (511) and openings (632) (or light-transmitting portions (632)) disposed over a pixel (521). For example, the size of the opening (631) may be larger than the size of each of the openings (632). The sub-pixels within the pixel (511) may be described as first sub-pixels disposed under one light-transmitting portion (e.g., a first light-transmitting portion (631)) within another layer (602), and the sub-pixels within the pixel (521) may be described as second sub-pixels disposed under other light-transmitting portions (e.g., second light-transmitting portions (632)) within another layer (602) that are smaller than the light-transmitting portion (e.g., the first light-transmitting portion (631)) within the other layer (602).

[0085] As a non-limiting example, the width (w4) of one of the apertures (632) may be equal to the width (w2) of the first portion (621-1) of the sub-pixel (621) (or the width (w3) of the second portion (621-2) of the sub-pixel (621). As a non-limiting example, the width (w4) of one of the apertures (632) may be wider than the width (w2) of the first portion (621-1) of the sub-pixel (621) (or the width (w3) of the second portion (621-2) of the sub-pixel (621). As a non-limiting example, the width (w4) of one of the apertures (632) may be narrower than the width (w2) of the first portion (621-1) of the sub-pixel (621) (or the width (w3) of the second portion (621-2) of the sub-pixel (621).

[0086] Referring back to FIG. 2, the electronic device (101) may provide a privacy display mode to protect privacy (or user privacy) in relation to displaying a screen (e.g., screen (110)) on the display panel (160). For example, the privacy display mode may be described as a display mode for reducing the probability that information within the screen displayed on the display panel (160) will be visible to another user distinct from the user of the electronic device (101). For example, the privacy display mode may be described as a display mode for reducing the probability that information within the screen displayed on the display panel (160) will be visible from a second space around a first space in front of the display panel (160). For example, the privacy display mode may be described as a display mode for reducing visibility from the second space.

[0087] For example, the display driving circuit (221) may receive an image from at least one processor (210). For example, the image may correspond to a screen (e.g., screen (110) of FIG. 1) displayed through the display panel (160). For example, the display driving circuit (221) may use the first sub-pixels and the second sub-pixels to display the screen corresponding to the image through the display panel (160) according to the normal display mode. For example, the screen may be displayed according to the normal display mode by using light emitted from the first sub-pixels and light emitted from the second sub-pixels. For example, the display driving circuit (221) may use the second sub-pixels among the first sub-pixels and the second sub-pixels to display the screen corresponding to the image through the display panel (160) according to the privacy display mode. In other words, the display driving circuit (221) can display the screen corresponding to the image by controlling the display panel (160) to refrain from emitting light from the first sub-pixels and to control the second sub-pixels to emit light according to the privacy display mode.

[0088] Specific details regarding the characteristics of the light emitted from the first sub-pixels and the light emitted from the second sub-pixels are described below with reference to FIG. 7a.

[0089] FIG. 7a shows examples of graphs representing the spectral power distribution (SPD) of first sub-pixels and second sub-pixels.

[0090] In Fig. 7a, a graph (701) representing the SPD of the first sub-pixels and a graph (702) representing the SPD of the second sub-pixels are illustrated. For example, the first sub-pixels may be examples of sub-pixels (350-1, 350-2, 350-3) in the pixel (311) of Fig. 3, or sub-pixels (550-1, 550-2, 550-3) in the pixel (511) of Fig. 5. For example, the second sub-pixels may be examples of sub-pixels (350-1, 350-2, 350-3) in the pixel (321) of Fig. 3, or sub-pixels (560-1, 560-2, 560-3) in the pixel (521) of Fig. 5.

[0091] The SPD may represent a distribution of power according to the wavelength of light emitted from a pixel (or sub-pixels within a pixel). For example, the SPD may be related to a color gamut of light emitted from the pixel. For example, a wider SPD may indicate a wider color gamut of the light. For example, a narrower SPD may indicate a narrower color gamut of the light.

[0092] For example, graph (701) illustrates a line (710) representing the SPD of light emitted from the first sub-pixels. The horizontal axis of graph (701) may represent the wavelength (unit: nm (nanometer)) of light emitted from the first sub-pixels, and the vertical axis of graph (701) may represent the normalized power of light emitted from the first sub-pixels.

[0093] Referring to the graph (701), a first portion (711) of a line (710) may represent wavelengths of light of a first color (e.g., red color) (or colors related to (or adjacent to) the first color) emitted from the first sub-pixels, a second portion (712) of a line (710) may represent wavelengths of light of a second color (e.g., green color) (or colors related to (or adjacent to) the second color) emitted from the first sub-pixels, and a third portion (713) of a line (710) may represent wavelengths of light of a third color (e.g., blue color) (or colors related to (or adjacent to) the third color) emitted from the first sub-pixels.

[0094] For example, the normalized power of the line (710) may be normalized with respect to the maximum power value (or peak value) of a wavelength (713a) (e.g., about 440 nm (nanometer)) among the wavelengths of the third portion (713). In other words, the maximum power value (or peak value) of a specific wavelength (e.g., about 440 nm (nanometer)) may be set to 1. For example, the wavelength (711a) having the maximum power value among the wavelengths of the first portion (711) may be about 640 nm. For example, the power value of the wavelength (711a) may be about 0.74. For example, the wavelength (712a) having the maximum power value among the wavelengths of the second portion (712) may be about 555 nm. For example, the power value of the wavelength (712a) may be about 0.66. For example, among the wavelengths of the third portion (713), the wavelength (713a) having the maximum power value may be about 440 nm. For example, the power value of the wavelength (713a) may be about 1.

[0095] For example, the SPD of light emitted from the first sub-pixels may be determined based on the full width at half maximum of each of the first portion (711), the second portion (712), and the third portion (713). For example, the full width at half maximum (711b) of the first portion (711) may represent an interval (or a range of wavelengths) between wavelengths having a power value corresponding to half the power value of the wavelength (711a). For example, the full width at half maximum (711b) may represent an interval (or a range of wavelengths) between wavelengths of about 0.37. For example, the full width at half maximum (712b) of the second portion (712) may represent an interval (or a range of wavelengths) between wavelengths having a power value corresponding to half the power value of the wavelength (712a). For example, the full width at half maximum (712b) may represent a spacing between wavelengths of about 0.33. For example, the full width at half maximum (713b) of the third portion (713) may represent a spacing between wavelengths having a power value corresponding to half the power value of the wavelength (713a). For example, the full width at half maximum (713b) may represent a spacing between wavelengths of about 0.5.

[0096] Referring to the graph (702), a first portion (721) of a line (720) may represent wavelengths of light of a first color (e.g., red color) (or colors related to (or adjacent to) the first color) emitted from the second sub-pixels, a second portion (722) of a line (720) may represent wavelengths of light of a second color (e.g., green color) (or colors related to (or adjacent to) the second color) emitted from the second sub-pixels, and a third portion (723) of a line (720) may represent wavelengths of light of a third color (e.g., blue color) (or colors related to (or adjacent to) the third color) emitted from the second sub-pixels.

[0097] For example, the normalized power of the line (720) may be normalized with respect to the maximum power value (or peak value) of a wavelength (723a) (e.g., about 455 nm (nanometer)) among the wavelengths of the third portion (723). In other words, the maximum power value (or peak value) of a specific wavelength (e.g., about 455 nm (nanometer)) may be set to 1. For example, the wavelength (721a) having the maximum power value among the wavelengths of the first portion (721) may be about 625 nm. For example, the power value of the wavelength (721a) may be about 0.74. For example, the wavelength (722a) having the maximum power value among the wavelengths of the second portion (722) may be about 530 nm. For example, the power value of the wavelength (722a) may be about 0.66. For example, among the wavelengths of the third portion (723), the wavelength (723a) having the maximum power value may be about 455 nm. For example, the power value of the wavelength (723a) may be about 1.

[0098] For example, the SPD of light emitted from the second sub-pixels may be determined based on the full width at half maximum (FWHM) of each of the first portion (721), the second portion (722), and the third portion (723). For example, the full width at half maximum (721b) of the first portion (721) may represent the interval between wavelengths having a power value corresponding to half the power value of the wavelength (721a). For example, the full width at half maximum (721b) may represent the interval between wavelengths of about 0.37. For example, the full width at half maximum (722b) of the second portion (722) may represent the interval between wavelengths having a power value corresponding to half the power value of the wavelength (722a). For example, the full width at half maximum (722b) may represent the interval between wavelengths of about 0.33. For example, the full width at half maximum (723b) of the third portion (723) may represent the interval between wavelengths having a power value corresponding to half the power value of the wavelength (723a). For example, the full width at half maximum (723b) may represent an interval between wavelengths of about 0.5.

[0099] Referring to graphs (701) and (702), the SPD of the first sub-pixels may be different from the SPD of the second sub-pixels. For example, a first portion (711) of the SPD of the first sub-pixels (or a wavelength (711a) having a maximum power value of the first portion (711)) may be different from a first portion (721) of the SPD of the second sub-pixels (or a wavelength (721a) having a maximum power value of the first portion (721)). For example, a second portion (712) of the SPD of the first sub-pixels (or a wavelength (712a) having a maximum power value of the second portion (712)) may be different from a second portion (722) of the SPD of the second sub-pixels (or a wavelength (722a) having a maximum power value of the second portion (722)). For example, the third portion (713) of the SPD of the first sub-pixels (or the wavelength (713a) having the maximum power value of the third portion (713)) may be different from the third portion (723) of the SPD of the second sub-pixels (or the wavelength (723a) having the maximum power value of the third portion (723)).

[0100] Referring to graphs (701) and (702), the SPD of the first sub-pixels may be wider than the SPD of the second sub-pixels. For example, the half-maximum widths (711b, 712b, 713b) of light emitted from the first sub-pixels may be wider than the half-maximum widths (721b, 722b, 723b) of light emitted from the second sub-pixels. As a non-limiting example, the half width (711b) of the first portion (711) may be wider than the half width (721b) of the first portion (721), the half width (712b) of the second portion (712) may be wider than the half width (722b) of the second portion (722), and the half width (713b) of the third portion (713) may be wider than the half width (723b) of the third portion (723). The fact that the SPD of the first sub-pixels is wider than the SPD of the second sub-pixels may indicate that the color gamut of light emitted from the first sub-pixels is wider than the color gamut of light emitted from the second sub-pixels. As a non-limiting example, the color gamut of light from the first sub-pixels may correspond to an area (715) of the SPD, and the color gamut of light from the second sub-pixels may correspond to an area (725) of the SPD. For example, the area (715) may be wider than the area (725).

[0101] Figure 7b shows an example of a graph representing a color matching function.

[0102] The graph (750) of FIG. 7B may represent a color matching function that indicates the color recognized by the eye (or optic nerve) according to the wavelength of light. For example, the horizontal axis of the graph (780) may represent the wavelength of light (unit: nm (nanometer)), and the vertical axis of the graph (780) may represent the tristimulus value. For example, the tristimulus value may be used to define the color recognized by a human for the color expressed according to the wavelength of light.

[0103] The graph (750) includes a first line (751) representing a first color (e.g., red), a second line (752) representing a second color (e.g., green), and a third line (753) representing a third color (e.g., blue). For example, a person can perceive (or sense) light having a wavelength of about 400 nm to about 500 nm as the third color compared to other colors. For example, a person can perceive light having a wavelength of about 500 nm to about 550 nm as the second color compared to other colors. For example, a person can perceive light having a wavelength of about 550 nm to about 700 nm as the first color compared to other colors. In addition, the graph (750) representing tristimulus values ​​according to wavelength may be formed differently for each person.

[0104] In Fig. 7a, the SPD in the case where the light of the first sub-pixels and the light of the second sub-pixels of the display panel (160) are individually used is exemplified. In the privacy display mode, the screen (or image) displayed through the display panel (160) can be displayed according to the SPD of the graph (702). In this case, since the SPD of the second sub-pixels is relatively sharp and narrow, it can be easy to accurately express a specific color. For the privacy display mode, the display driving circuit (221) can narrow (or reduce) the viewing angle of the screen by using the second sub-pixels among the first and second sub-pixels. However, since the SPD of the second sub-pixels is relatively sharp and narrow, a difference may occur between the color perceived by a human and the color of the light emitted from the second sub-pixels. The difference between the colors may be referred to as a color mismatch. In other words, since the light emitted from the second sub-pixels has a narrow interval between wavelengths for expressing a specific color (e.g., a first color, a second color, or a third color), it is easy to express the specific color, but depending on the person, there may be a high possibility that they will not recognize it as the specific color but rather as another similar color.

[0105] Since the SPD of the first sub-pixels is wider than the SPD of the second sub-pixels, the color mismatch may be relatively less likely to occur. In other words, the light emitted from the first sub-pixels may provide a more natural light distribution than the light emitted from the second sub-pixels. Nevertheless, the light emitted from the first sub-pixels may also have a different SPD from that of natural light. Accordingly, eye fatigue may be relatively increased when the user looks at a screen displayed through the display panel (160) compared to when the user looks at an external object shown by the natural light. For example, the fatigue may be determined according to the following mathematical equation.

[0106]

[0107]

[0108]

[0109] Figure 7c shows an example of a graph representing WSPD (wide-SPD).

[0110] The graph (781) of Fig. 7c may represent the SPD of the first sub-pixels and the second sub-pixels. The horizontal axis of the graph (781) may represent the wavelength of light (unit: nm (nanometer)), and the vertical axis of the graph (781) may represent the normalized power of light. For example, the SPD when at least some of the first sub-pixels and all of the second sub-pixels are used may be WSPD.

[0111] Referring to graph (781), WSPD may be defined based on line (710) representing SPD of light emitted from the first sub-pixels and line (720) representing SPD of light emitted from the second sub-pixels. For example, the WSPD may be wider than the SPD of light emitted from the first sub-pixels and the SPD of light emitted from the second sub-pixels, respectively. For example, the color gamut of the synthesized light may correspond to the area (785) of the WSPD. For example, the synthesized light may include light emitted from the first sub-pixels and light emitted from the second sub-pixels.

[0112] Referring to FIG. 7C, when both the first sub-pixels and the second sub-pixels are utilized, a WSPD may be provided. As the SPD becomes wider (or, when a WSPD is provided), color rendering, which indicates the degree of similarity to the color of an object viewed by natural light, may increase. For example, an increase in the color rendering of the display panel (160) may indicate an increase in the similarity between the color of an object viewed by natural light and the color of light emitted by the pixels of the display panel (160). Accordingly, as described above, eye fatigue of the user may be reduced.

[0113] However, within the privacy display mode, the second sub-pixels among the first sub-pixels and the second sub-pixels may be used to narrow the viewing angle of the screen (e.g., the screen (110) of FIG. 1). Therefore, in the present disclosure, in order to provide privacy protection for the user and reduce eye fatigue for the user, the display driving circuit (221) may further use at least some of the first sub-pixels within the privacy display mode. For example, the display driving circuit (221) may control at least some of the first sub-pixels and the second sub-pixels to emit light in order to display the screen through the display panel (160) according to the privacy display mode. Accordingly, the present disclosure may reduce eye fatigue for the user while using the privacy display mode to provide privacy protection for the user.

[0114] Below, examples of methods for providing WSPD while displaying a screen according to the privacy display mode are described in FIGS. 8A to 11B.

[0115] FIG. 8a illustrates an example of a method for providing WSPD when performing color temperature adjustment while displaying a screen according to a privacy display mode.

[0116] Referring to FIG. 8A, an example (800) of a display panel (160) is illustrated while displaying a screen (e.g., screen (110) of FIG. 1) according to the privacy display mode. Referring to the example (800), the display driving circuit (221) may control second sub-pixels (820) of the display panel (160) to emit light. For example, the second sub-pixels (820) may be included in pixels (e.g., pixels (321) of FIG. 3) within a second set (320). Although the example (800) illustrates a case where the second sub-pixels (820) within one pixel emit light, the present disclosure is not limited thereto. For example, while displaying a screen according to the privacy display mode, the second sub-pixels (820) of each of the pixels within the second set (320) may emit light.

[0117] For example, the display driving circuit (221) can control the pixels (or second pixels) of the second set (320) to emit light while displaying the screen according to the privacy display mode. For example, the display driving circuit (221) can control the pixels (or first pixels) of the first set (310) to refrain from emitting light while displaying the screen according to the privacy display mode. For example, the display driving circuit (221) can display the screen according to the privacy display mode by refraining from emitting light from the first sub-pixels (810) of the pixels of the first set (310) and controlling the second sub-pixels (820) of the pixels of the second set (320) to emit light. The viewing angle of the screen displayed according to the privacy display mode can correspond to the viewing angle (182) of FIG. 1.

[0118] For example, the display driving circuit (221) can adjust the color temperature of the display panel (160) while displaying the screen according to the privacy display mode. For example, the color temperature of the display panel (160) can be referred to as the color temperature of the light sources (e.g., pixels) of the display panel (160) or the color temperature of the screen displayed on the display panel (160).

[0119] For example, the display driving circuit (221) may detect an event for adjusting the color temperature of the display panel (160) with respect to the screen. For example, the event may include activating a blue light filter (BLF) function of the electronic device (101), or obtaining an input with respect to a setting menu within the screen for adjusting the color temperature of the display panel (160). However, the present disclosure is not limited thereto. For example, the display driving circuit (221) may identify the event for adjusting the color temperature of the display panel (160) based on data acquired using a sensor (e.g., an illuminance sensor) of the electronic device (101), or may receive a command from at least one processor (210) to adjust the color temperature of the display panel (160). As a non-limiting example, the command may be output based on a trained model within the at least one processor (210) using the data, or may be generated using output information.

[0120] For example, the display driving circuit (221) may identify one of the first sub-pixels (810) based on the event. For example, the identified sub-pixel may be identified according to the color temperature to be adjusted of the display panel (160).

[0121] For example, the display driver circuit (221) can identify the sub-pixel among the first sub-pixels (810) based on a comparison between the color temperature to be adjusted and the reference color temperature. The display driver circuit (221) can determine whether the color temperature to be adjusted exceeds the reference color temperature. For example, when the display driver circuit (221) determines that the color temperature to be adjusted exceeds the reference color temperature, the display driver circuit (221) can identify the sub-pixel that emits light of a third color (e.g., blue) having a first wavelength among the first sub-pixels (810). For example, when the display driver circuit (221) determines that the color temperature to be adjusted is less than the reference color temperature, the display driver circuit (221) can identify the sub-pixel that emits light of a first color (e.g., red) having a second wavelength among the first sub-pixels (810). For example, the second wavelength may be longer than the first wavelength.

[0122] For example, the display driving circuit (221) can control the identified sub-pixel among the first sub-pixels (810) to further emit light in order to adjust the color temperature of the display panel (160) within the privacy display mode. For example, the display driving circuit (221) can control the identified sub-pixel among the first sub-pixels (810) to further emit light while displaying the screen within the privacy display mode based on controlling the second sub-pixels (820) to emit light, thereby adjusting the color temperature of the display panel (160) with respect to the screen.

[0123] Referring to example (801), the display driving circuit (221) can further control the sub-pixel (811) among the first sub-pixels (810) to emit light when determining that the color temperature to be adjusted is lower than the reference color temperature. For example, the sub-pixel (811) may be an example of the sub-pixel (350-1) of FIG. 3 that emits light of the first color. For example, the display driving circuit (221) can adjust the color temperature of the display panel (160) with respect to the screen while displaying the screen according to the privacy display mode by controlling the identified sub-pixel (811) among the second sub-pixels (820) and the first sub-pixels (810) to emit light. For example, the display driving circuit (221) may control the sub-pixels other than the sub-pixel (811) among the first sub-pixels (810) to refrain from emitting light while displaying the screen according to the privacy display mode, control the sub-pixel (811) among the first sub-pixels (810) to emit light, and control the second sub-pixels (820) to emit light. Accordingly, the display driving circuit (221) may display the screen according to the privacy display mode. In example (801), the viewing angle of the screen displayed according to the privacy display mode may substantially correspond to the viewing angle (182) of FIG. 1. Alternatively, in example (801), the viewing angle of the screen displayed according to the privacy display mode may be wider than the viewing angle (182) of FIG. 1 and narrower than the viewing angle (181) of FIG. 1. This may be because one sub-pixel (811) among the first sub-pixels (810) emits more light.

[0124] Referring to example (802), the display driving circuit (221) can further control the sub-pixel (812) among the first sub-pixels to emit light when determining that the color temperature to be adjusted exceeds the reference color temperature. For example, the sub-pixel (812) may be an example of the sub-pixel (350-3) of FIG. 3 that emits light of the third color. For example, the display driving circuit (221) can adjust the color temperature of the display panel (160) with respect to the screen while displaying the screen according to the privacy display mode by controlling the identified sub-pixel (812) among the second sub-pixels (820) and the first sub-pixels (810) to emit light. For example, the display driving circuit (221) may control the sub-pixels other than the sub-pixel (812) among the first sub-pixels (810) to refrain from emitting light while displaying the screen according to the privacy display mode, control the sub-pixel (812) among the first sub-pixels (810) to emit light, and control the second sub-pixels (820) to emit light. Accordingly, the display driving circuit (221) may display the screen according to the privacy display mode. In example (802), the viewing angle of the screen displayed according to the privacy display mode may substantially correspond to the viewing angle (182) of FIG. 1. Alternatively, in example (802), the viewing angle of the screen displayed according to the privacy display mode may be wider than the viewing angle (182) of FIG. 1 and narrower than the viewing angle (181) of FIG. 1. This may be because one sub-pixel (812) among the first sub-pixels (810) emits more light.

[0125] In example (801), in order to lower the color temperature, the display driving circuit (221) may control the sub-pixel (811) that emits light of the first color among the first sub-pixels (810) to emit more light. In example (802), in order to increase the color temperature, the display driving circuit (221) may control the sub-pixel (812) that emits light of the third color among the first sub-pixels (810) to emit more light. In FIG. 8A, for convenience of explanation, a case is illustrated where the sub-pixel (811) that emits light of the first color and the sub-pixel (812) that emits light of the third color are identified (or selected), but the present disclosure is not limited thereto. For example, the display driving circuit (221) can identify a sub-pixel that emits light of the second color among the first sub-pixels (810) by further utilizing the reference color temperature and another reference color temperature, and control the identified sub-pixel that emits light of the second color to emit more light. Accordingly, the display driving circuit (221) can adjust the color temperature of the display panel (160).

[0126] In the example of FIG. 8A, one of the first sub-pixels (810) is illustrated as being more luminous, but the present disclosure is not limited thereto. To adjust the color temperature within the privacy display mode, at least one of the first sub-pixels (810) may be made to emit more light. For example, to adjust the color temperature within the privacy display mode, two of the first sub-pixels (810) may be made to emit light. To adjust a reddish color temperature, a sub-pixel emitting light of the second color and a sub-pixel emitting light of the third color among the first sub-pixels (810) may be made to emit light. Alternatively, for example, among the first sub-pixels (810) of the pixels of the first set (310), a sub-pixel that emits light of the second color may emit light, and among the first sub-pixels (810) of another pixel of the first set (310), a sub-pixel that emits light of the third color may emit light. The other pixel of the first set (310) may be a pixel adjacent to the pixel of the first set (310) among the pixels of the first set (310). At this time, in order to reduce the effect of burn-in, the sub-pixel that emits light of the second color among the first sub-pixels (810) of the pixels of the first set (310) may emit light, the sub-pixel that emits light of the third color among the first sub-pixels (810) of the other pixels of the first set (310) may emit light, and then the sub-pixel that emits light of the third color among the first sub-pixels (810) of the pixels of the first set (310) may emit light, and the sub-pixel that emits light of the second color among the first sub-pixels (810) of the other pixels of the first set (310) may emit light. At this time, as one of the sub-pixels of the first sub-pixels (810) emits light together with the second sub-pixels (820), WSPD may be provided within the privacy display mode.For specific details related to this, reference can be made to Fig. 8b.

[0127] FIG. 8b illustrates examples of graphs representing WSPD provided by utilizing one sub-pixel identified among the first sub-pixels for color temperature adjustment.

[0128] The graph (851) of FIG. 8B may represent a WSPD provided by using the sub-pixel (811) and the second sub-pixels (820) among the first sub-pixels (810) in the example (801) of FIG. 8A. The horizontal axis of the graph (851) may represent the wavelength of light (unit: nm (nanometer)), and the vertical axis of the graph (851) may represent the normalized power of light.

[0129] Graph (851) illustrates lines (720) and (861). For example, line (720) may represent the SPD of light emitted from the second sub-pixels (820). For example, line (861) may represent the SPD of light of a first color (e.g., red) emitted from the sub-pixel (811) among the first sub-pixels (810). Referring to graph (851), when the sub-pixel (811) and the second sub-pixels (820) are used, a wider SPD (or WSPD) may be provided than the SPD when the second sub-pixels (820) are used. For example, compared to the case where the second sub-pixels (820) are used, the distribution of wavelengths related to the first color may be widened by using more sub-pixels (811), thereby providing WSPD.

[0130] The graph (852) of FIG. 8B may represent a WSPD provided by using the sub-pixel (812) and the second sub-pixels (820) among the first sub-pixels (810) in the example (802) of FIG. 8A. The horizontal axis of the graph (852) may represent the wavelength of light (unit: nm (nanometer)), and the vertical axis of the graph (852) may represent the normalized power of light.

[0131] Graph (852) illustrates lines (720) and (862). For example, line (720) may represent the SPD of light emitted from the second sub-pixels (820). For example, line (862) may represent the SPD of light of a third color (e.g., blue) emitted from the sub-pixel (812) among the first sub-pixels (810). Referring to graph (852), when the sub-pixel (812) and the second sub-pixels (820) are used, a wider SPD (or WSPD) may be provided than the SPD when the second sub-pixels (820) are used. For example, compared to the case where the second sub-pixels (820) are used, the distribution of wavelengths related to the third color may be widened by using more sub-pixels (812), thereby providing WSPD.

[0132] Referring to FIGS. 8A and 8B, by using the sub-pixel (811) (or sub-pixel (812)) and the second sub-pixels (820) within the privacy display mode, the color temperature can be adjusted, and a privacy protection function and a user's eye protection function can be provided.

[0133] FIG. 9 illustrates an example of a method for providing WSPD by emitting first sub-pixels at a specific brightness level while displaying a screen according to a privacy display mode.

[0134] Referring to FIG. 9, an example (900) of a display panel (160) is illustrated while displaying a screen (e.g., screen (110) of FIG. 1) according to the privacy display mode. Referring to the example (900), the display driving circuit (221) may control second sub-pixels (920) of the display panel (160) to emit light. For example, the second sub-pixels (920) may be included in pixels (e.g., pixels (321) of FIG. 3) within a second set (320). In the example (900), a case where the second sub-pixels (920) within one pixel emit light is illustrated, but the present disclosure is not limited thereto. For example, while displaying a screen according to the privacy display mode, the second sub-pixels (920) of each of the pixels within the second set (320) may emit light.

[0135] For example, the display driving circuit (221) can control the pixels (or second pixels) of the second set (320) to emit light while displaying the screen according to the privacy display mode. For example, the display driving circuit (221) can control the pixels (or first pixels) of the first set (310) to refrain from emitting light while displaying the screen according to the privacy display mode. For example, the display driving circuit (221) can display the screen according to the privacy display mode by refraining from emitting light from the first sub-pixels (910) of the pixels of the first set (310) and controlling the second sub-pixels (920) of the pixels of the second set (320) to emit light. The viewing angle of the screen displayed according to the privacy display mode can correspond to the viewing angle (182) of FIG. 1.

[0136] Referring to Example (905), the display driving circuit (221) can control the first sub-pixels (910) to emit more light in order to provide WSPD while displaying the screen according to the privacy display mode. Unlike Examples (801) and (802) of FIG. 8A, in Example (905) of FIG. 9, the display driving circuit (221) can control all sub-pixels of the first sub-pixels (910) to emit more light.

[0137] In example (905), the display driving circuit (221) can adjust the brightness level of the more emitting first sub-pixels (910). For example, the display driving circuit (221) can identify a brightness level (e.g., 10%) lower than the maximum brightness level (e.g., 100%) that the first sub-pixels (910) can display. For example, the display driving circuit (221) can control the first sub-pixels (910) to emit more light according to the identified brightness level within the privacy display mode. As a non-limiting example, while displaying a screen according to the privacy display mode, the brightness level of the more emitting second sub-pixels (920) can be the maximum brightness level (e.g., 100%). Referring to Example (905), the display driving circuit (221) can provide WSPD by controlling the first sub-pixels (910) to further emit light according to the identified brightness level together with the second sub-pixels (920) that emit light according to the maximum brightness level. Unlike Example (1005) of FIG. 10 described below, in Example (905), each of the sub-pixels of the first sub-pixels (910) can emit light according to the same grayscale level. As a non-limiting example, when the identified brightness level is 10%, each of the sub-pixels of the first sub-pixels (910) can emit light according to a grayscale level (e.g., 25).

[0138] In example (905), the first sub-pixels (910) of each of the pixels of the first set (310) are illustrated as being more luminous, but the present disclosure is not limited thereto. For example, the first sub-pixels (910) of some of the pixels of the first set (310) may be more luminous. Alternatively, for example, the sub-pixels of the first sub-pixels (910) of a pixel of the first set (310) that emits the first color, the sub-pixels of the first sub-pixels (910) of another pixel of the first set (310) that emits the second color, and the sub-pixels of the first sub-pixels (910) of another pixel of the first set (310) that emits the third color may be luminous. In the example, the pixel, the other pixel, and the another pixel may be adjacent pixels of the pixels of the first set (310). In the above example, the sub-pixels displayed in each of the pixels of the first set (310), the pixel, the other pixel, and the further pixel may be changed. For example, the sub-pixels emitting the second color among the first sub-pixels (910) of the pixels of the first set (310), the sub-pixels emitting the third color among the first sub-pixels (910) of the other pixel of the pixels of the first set (310), and the sub-pixels emitting the first color among the first sub-pixels (910) of the further pixel of the pixels of the first set (310) may emit light. In the above example, the grayscale levels of the sub-pixels emitting light among the first sub-pixels (910) of the pixel, the sub-pixels emitting light among the first sub-pixels (910) of the other pixel, and the sub-pixels emitting light among the first sub-pixels (910) of the further pixel may emit light according to the same grayscale level.

[0139] In the example (905), the viewing angle of the screen displayed according to the privacy display mode may be wider than the viewing angle (182) of FIG. 1 and narrower than the viewing angle (181) of FIG. 1. This may be because the first sub-pixels (910) emit more light. As the first sub-pixels (910) emit more light, the saturation and contrast of the display panel (160) (or the screen displayed on the display panel (160)) decrease, but by providing WSPD, the user's eye fatigue may be reduced.

[0140] For example, the display driver circuit (221) can identify the brightness level for emitting light of the first sub-pixels (910) according to the external illuminance of the electronic device (101). For example, when the external illuminance is a first illuminance, the display driver circuit (221) can identify the brightness level for emitting light of the first sub-pixels (910) as the first brightness level. For example, when the external illuminance is a second illuminance lower than the first illuminance, the display driver circuit (221) can identify the brightness level for emitting light of the first sub-pixels (910) as the second brightness level lower than the first brightness level. Since the higher the external illuminance of the electronic device (101), the lower the possibility that the screen displayed on the display panel (160) will be visible to other users, the brightness level of the first sub-pixels (910) can be increased.

[0141] FIG. 10 illustrates an example of a method for providing a WSPD by emitting first sub-pixels using grayscale levels determined based on the grayscale levels of second sub-pixels while displaying a screen according to a privacy display mode.

[0142] Referring to FIG. 10, an example (1000) of a display panel (160) is illustrated while displaying a screen (e.g., screen (110) of FIG. 1) according to the privacy display mode. Referring to the example (1000), the display driving circuit (221) may control second sub-pixels (1020) of the display panel (160) to emit light. For example, the second sub-pixels (1020) may be included in pixels (e.g., pixels (321) of FIG. 3) within a second set (320). In the example (1000), a case where the second sub-pixels (1020) within one pixel emit light is illustrated, but the present disclosure is not limited thereto. For example, while displaying a screen according to the privacy display mode, the second sub-pixels (1020) of each of the pixels within the second set (320) may emit light.

[0143] In the example (1000), the display driving circuit (221) can identify grayscale levels for expressing an image corresponding to a screen displayed according to the privacy display mode. As a non-limiting example, the display driving circuit (221) can identify a grayscale level (RN) for a sub-pixel (1021) that emits light of a first color (e.g., red) among the second sub-pixels (1020) (e.g., the first sub-pixel (350-1) of FIG. 3 or the first sub-pixel (560-1) of FIG. 5) as 30. The display driving circuit (221) can identify a grayscale level (GN) for a sub-pixel (1022) that emits light of a second color (e.g., green) among the second sub-pixels (1020) (e.g., the second sub-pixel (350-2) of FIG. 3 or the second sub-pixel (560-2) of FIG. 5) as 200. The display driving circuit (221) can identify the grayscale level (BN) for the sub-pixel (1023) (e.g., the third sub-pixel (350-3) of FIG. 3 or the third sub-pixel (560-3) of FIG. 5) that emits light of a third color (e.g., blue) among the second sub-pixels (1020) as 120. For example, the display driving circuit (221) can display a screen through the display panel (160) according to the privacy display mode by controlling the second sub-pixels (1020) to emit light using the grayscale levels (e.g., RN (30), GN (200), BN (120)). For example, the display driving circuit (221) can display a screen through the display panel (160) according to the privacy display mode by applying (or providing) data voltages according to grayscale levels (e.g., RN (30), GN (200), BN (120)) to each of the sub-pixels.

[0144] For example, the display driving circuit (221) can control to refrain from emitting light of the pixels (or first pixels) of the first set (310) while displaying the screen according to the privacy display mode. For example, the display driving circuit (221) can display the screen according to the privacy display mode by refraining from emitting light of the first sub-pixels (1010) of the pixels of the first set (310) and controlling to emitting light of the second sub-pixels (1020) of the pixels of the second set (320). The viewing angle of the screen displayed according to the privacy display mode can correspond to the viewing angle (182) of FIG. 1.

[0145] In the example (1000), the display driving circuit (221) can identify grayscale levels for expressing an image corresponding to a screen displayed according to the privacy display mode. As a non-limiting example, the display driving circuit (221) can identify a grayscale level (RW) for a sub-pixel (1011) that emits light of a first color (e.g., red) among the first sub-pixels (1010) (e.g., the first sub-pixel (350-1) of FIG. 3 or the first sub-pixel (550-1) of FIG. 5) as 0. The display driving circuit (221) can identify a grayscale level (GW) for a sub-pixel (1012) that emits light of a second color (e.g., green) among the first sub-pixels (1010) (e.g., the second sub-pixel (350-2) of FIG. 3 or the second sub-pixel (550-2) of FIG. 5) as 0. The display driving circuit (221) can identify the grayscale level (BW) for a sub-pixel (1013) (e.g., the third sub-pixel (350-3) of FIG. 3 or the third sub-pixel (550-3) of FIG. 5) that emits light of a third color (e.g., blue) among the first sub-pixels (1010) as 0. For example, the display driving circuit (221) can control the first sub-pixels (1010) to refrain from emitting light using the grayscale levels (e.g., RW(0), GW(0), BW(0)), thereby displaying a screen through the display panel (160) according to the privacy display mode.

[0146] Referring to Example (1005), the display driving circuit (221) can control the first sub-pixels (1010) to emit more light in order to provide WSPD while displaying the screen according to the privacy display mode. Unlike Examples (801) and (802) of FIG. 8A, in Example (1005) of FIG. 10, the display driving circuit (221) can control all sub-pixels of the first sub-pixels (1010) to emit more light.

[0147] For example, the display driving circuit (221) can adjust the grayscale levels of the second subpixels (1020) and the grayscale levels of the first subpixels (1010) to express an image corresponding to a screen displayed according to the privacy display mode based on the size of the grayscale levels of the second subpixels (1020).

[0148] For example, the display driving circuit (221) can identify the magnitude of the grayscale levels of the second sub-pixels (1020). As a non-limiting example, the magnitude may be the sum of the magnitudes of each of the grayscale levels of the second sub-pixels (1020). As a non-limiting example, the magnitude may be the magnitude of the grayscale level (RN) for the first color, the magnitude of the grayscale level (GN) for the second color, the magnitude of the grayscale level (BN) for the third color, the sum of the magnitude of the grayscale level (RN) for the first color and the magnitude of the grayscale level (GN) for the second color, the sum of the magnitude of the grayscale level (RN) for the first color and the magnitude of the grayscale level (BN) for the third color, or the sum of the magnitude of the grayscale level (GN) for the second color and the magnitude of the grayscale level (BN) for the third color.

[0149] For example, the display driving circuit (221) can compare the magnitude of the grayscale levels of the second sub-pixels (1020) with a reference magnitude. For example, the display driving circuit (221) can determine whether the magnitude exceeds the reference magnitude. For example, the display driving circuit (221) can adjust the reference magnitude according to the illumination outside the electronic device (101) or the luminance of the display panel (160). For example, the higher the illumination or the lower the luminance, the more the reference magnitude can be reduced. Since the higher the illumination outside the electronic device (101) or the lower the luminance of the display panel (160), the less likely it is that the screen displayed on the display panel (160) will be visible to other users, the reference magnitude used as a condition for the first sub-pixels (1010) to emit more light can be reduced.

[0150] For example, the display driving circuit (221) can display a screen through the display panel (160) according to the privacy display mode by controlling the second sub-pixels (1020) to emit light when determining that the size is less than the reference size. For example, the display driving circuit (221) can control the first sub-pixels (1010) to refrain from emitting light and control the second sub-pixels (1020) to emit light, as in example (1000), when the size is less than the reference size. In the example of FIG. 10, the grayscale levels of the first sub-pixels (1010) can be RW(0), GW(0), BW(0), and the grayscale levels of the second sub-pixels (1020) can be RN(30), GN(200), BN(120).

[0151] For example, the display driving circuit (221) can display a screen through the display panel (160) according to the privacy display mode by controlling the first sub-pixels (1010) to emit more light when it determines that the size exceeds the reference size. For example, the display driving circuit (221) can control the first sub-pixels (1010) to emit light and control the second sub-pixels (1020) to emit light, as in example (1005), when the size exceeds the reference size. In the example of FIG. 10, the grayscale levels of the first sub-pixels (1010) can be RW (9), GW (60), BW (36), and the grayscale levels of the second sub-pixels (1020) can be RN (21), GN (140), BN (84). For example, the display driving circuit (221) can increase the grayscale levels of the first sub-pixels (1010) by the grayscale levels that have decreased the grayscale levels of the second sub-pixels (1020). In the above example, the ratio of decreased (and increased) grayscale levels can be 30%.

[0152] For example, the display driving circuit (221) can adjust the ratio of the reduced (and increased) grayscale levels according to the illumination outside the electronic device (101) or the brightness of the display panel (160). For example, the display driving circuit (221) can increase the ratio as the illumination increases. For example, the display driving circuit (221) can increase the ratio as the brightness decreases. Since the higher the illumination outside the electronic device (101) and the lower the brightness of the display panel (160), the lower the possibility that the screen displayed on the display panel (160) will be visible to other users, the ratio for reducing the grayscale levels (or the magnitude of the data voltage) of the second sub-pixel (1020) and increasing the grayscale levels (or the magnitude of the data voltage) of the first sub-pixels (1010) can be increased.

[0153] In example (1005), the first sub-pixels (1010) of each of the pixels of the first set (310) are illustrated as being more luminous, but the present disclosure is not limited thereto. For example, the first sub-pixels (1010) of some of the pixels of the first set (310) may be more luminous. Alternatively, for example, a sub-pixel of the first sub-pixels (1010) of a pixel of the first set (310) that emits the first color, a sub-pixel of the first sub-pixels (1010) of another pixel of the first set (310) that emits the second color, and a sub-pixel of the first sub-pixels (1010) of another pixel of the first set (310) that emits the third color may be luminous. In the example, the pixel, the other pixel, and the another pixel may be adjacent pixels of the pixels of the first set (310). In the above example, the sub-pixels displayed in each of the pixels of the first set (310), the other pixels, and the further pixels may be changed. For example, the sub-pixels emitting the second color among the first sub-pixels (1010) of the pixels of the first set (310), the sub-pixels emitting the third color among the first sub-pixels (1010) of the further pixels of the pixels of the first set (310), and the sub-pixels emitting the first color among the first sub-pixels (1010) of the further pixels of the pixels of the first set (310) may be changed to emit light. In the above example, the grayscale levels of the light-emitting sub-pixel among the first sub-pixels (1010) of the pixel, the light-emitting sub-pixel among the first sub-pixels (1010) of the other pixel, and the light-emitting sub-pixel among the first sub-pixels (1010) of the still other pixel may emit light according to different (or partially identical) grayscale levels.

[0154] For example, the display driving circuit (221) can control the first sub-pixels (1010) to emit more light according to the adjusted grayscale levels within the privacy display mode. Referring to example (1005), the display driving circuit (221) can provide WSPD by controlling the first sub-pixels (1010) to emit more light according to the increased grayscale level together with the second sub-pixels (1020) that emit light according to the decreased grayscale levels. In example (1005), the viewing angle of the screen displayed according to the privacy display mode can be wider than the viewing angle (182) of FIG. 1 and narrower than the viewing angle (181) of FIG. 1. This may be because the first sub-pixels (1010) emit more light. As the first sub-pixels (1010) emit more light, eye fatigue of the user can be reduced by providing WSPD.

[0155] In the example (1005) of FIG. 10, the case where the grayscale levels of the first sub-pixels (1010) are adjusted is illustrated, but the present disclosure is not limited thereto. For example, the display driving circuit (221) may adjust the number of first sub-pixels (1010) that are to emit more light among the pixels (or first pixels) in the first set (310).

[0156] FIG. 11A illustrates an example of a method for providing a WSPD by alternately emitting first sub-pixels and second sub-pixels while displaying a screen according to a privacy display mode.

[0157] Referring to FIG. 11A, examples (1100, 1105) of a display panel (160) are illustrated while displaying a screen (e.g., screen (110) of FIG. 1) according to the privacy display mode. Referring to example (1100), the display driving circuit (221) may control second sub-pixels (1120) of the display panel (160) to emit light. For example, the second sub-pixels (1120) may be included in pixels within a second set (320) (e.g., pixel (321) of FIG. 3). In example (1100), a case where the second sub-pixels (1120) within one pixel emit light is illustrated, but the present disclosure is not limited thereto. For example, while displaying a screen according to the privacy display mode, the second sub-pixels (1120) of each of the pixels within the second set (320) may emit light.

[0158] For example, the display driving circuit (221) can control the pixels (or second pixels) of the second set (320) to emit light while displaying the screen according to the privacy display mode. For example, the display driving circuit (221) can control the pixels (or first pixels) of the first set (310) to refrain from emitting light while displaying the screen according to the privacy display mode. For example, the display driving circuit (221) can display the screen according to the privacy display mode by refraining from emitting light from the first sub-pixels (1110) of the pixels of the first set (310) and controlling the second sub-pixels (1120) of the pixels of the second set (320) to emit light. The viewing angle of the screen displayed according to the privacy display mode can correspond to the viewing angle (182) of FIG. 1.

[0159] For example, the display driving circuit (221) can control the first sub-pixels (1110) to refrain from emitting light within a first time interval of the time period, and control the second sub-pixels (1120) to emit light. For example, the time interval can be related to a refresh rate of the display panel (160). For example, when the refresh rate of the display panel (160) is 120 Hz, the length of the time interval can be about 8.3 ms (milliseconds) (= 1 / 120). As a non-limiting example, the display driving circuit (221) can control the brightness level of the second sub-pixels (1120) within the first time interval of the time period to be the maximum brightness level (e.g., 100%) of the second sub-pixels (1120).

[0160] Referring to Example (1105), for example, the display driving circuit (221) can control the pixels (or first pixels) of the first set (310) to emit light while displaying the screen according to the privacy display mode. For example, the display driving circuit (221) can control the pixels (or second pixels) of the second set (320) to refrain from emitting light while displaying the screen according to the privacy display mode. For example, the display driving circuit (221) can display the screen according to the privacy display mode by controlling the first sub-pixels (1110) of the pixels of the first set (310) to emit light and controlling the second sub-pixels (1120) of the pixels of the second set (320) to refrain from emitting light. The viewing angle of the screen displayed according to the privacy display mode can be wider than the viewing angle (182) of FIG. 1 and narrower than the viewing angle (181) of FIG. 1. The viewing angle of the screen displayed in example (1105) may be wider than the viewing angle of the screen displayed in example (1100).

[0161] For example, the display driving circuit (221) can control the first sub-pixels (1110) to emit light and control the second sub-pixels (1120) to refrain from emitting light within a second time interval of the time section. For example, the second time interval can be a time interval after the first time interval within the time section. For example, the second time interval can be extended from and distinct from the first time interval. As a non-limiting example, the display driving circuit (221) can control the brightness level of the first sub-pixels (1110) to be a brightness level (e.g., 50%) lower than the maximum brightness level (e.g., 100%) of the first sub-pixels (1110) within the second time interval of the time section.

[0162] In example (1105), the first sub-pixels (1110) of each of the pixels of the first set (310) are illustrated as being more luminous, but the present disclosure is not limited thereto. For example, the first sub-pixels (1110) of some of the pixels of the first set (310) may be more luminous. Alternatively, for example, a sub-pixel of the first sub-pixels (1110) of a pixel of the first set (310) that emits the first color, a sub-pixel of the first sub-pixels (1110) of another pixel of the first set (310) that emits the second color, and a sub-pixel of the first sub-pixels (1110) of another pixel of the first set (310) that emits the third color may be luminous. In the example, the pixel, the other pixel, and the another pixel may be adjacent pixels of the pixels of the first set (310). In the above example, the sub-pixels displayed in each of the pixels of the first set (310), the other pixels, and the further pixels may be changed. For example, the sub-pixels emitting the second color among the first sub-pixels (1110) of the pixels of the first set (310), the sub-pixels emitting the third color among the first sub-pixels (1110) of the further pixels of the pixels of the first set (310), and the sub-pixels emitting the first color among the first sub-pixels (1010) of the further pixels of the pixels of the first set (310) may be changed to emit light. In the above example, the grayscale levels of the light-emitting sub-pixel among the first sub-pixels (1110) of the pixel, the light-emitting sub-pixel among the first sub-pixels (1110) of the other pixel, and the light-emitting sub-pixel among the first sub-pixels (1110) of the still other pixel may be emitted according to different (or partially identical) grayscale levels.

[0163] A timing diagram showing that the first sub-pixels (1110) and the second sub-pixels (1120) alternately emit light according to examples (1100, 1105) of FIG. 11a may be referred to in the following FIG. 11b.

[0164] FIG. 11b illustrates an example of first sub-pixels and second sub-pixels that alternately light up while displaying a screen according to a privacy display mode.

[0165] FIG. 11B illustrates an example of a timing diagram (1150) for alternately emitting light from first sub-pixels (1110) and second sub-pixels (1120) according to examples (1100, 1105) of FIG. 11A. The horizontal axis of the timing diagram (1150) may represent time, and the vertical axis of the timing diagram (1150) may represent the luminance (or brightness level) of the display panel (160).

[0166] For example, within a first time interval (1161) of a time section (1160), the display driving circuit (221) can cause the second sub-pixels (1120) among the first sub-pixels (1110) and the second sub-pixels (1120) to emit light. For example, within the first time interval (1161), the display driving circuit (221) can control the first sub-pixels (1110) to refrain from emitting light and control the second sub-pixels (1120) to emit light, thereby displaying a screen through the display panel (160) according to the privacy display mode.

[0167] For example, within a second time interval (1162) of a time section (1160), the display driving circuit (221) can cause the first sub-pixels (1110) among the first sub-pixels (1110) and the second sub-pixels (1120) to emit light. For example, within the second time interval (1162), the display driving circuit (221) can control the first sub-pixels (1110) to emit light and control the second sub-pixels (1120) to refrain from emitting light, thereby displaying a screen through the display panel (160) according to the privacy display mode.

[0168] In FIG. 11B, the length of the first time interval (1161) may correspond to the length of the second time interval (1162). For example, the length of the first time interval (1161) may be about 4.17 ms, and the length of the second time interval (1162) may be about 4.17 ms. However, the present disclosure is not limited thereto. For example, the display driving circuit (221) may adjust the lengths of the time intervals (1161, 1162) within the time section (1160) according to the illumination outside the electronic device (101) or the brightness of the display panel (160). For example, the display driving circuit (221) may decrease the length of the first time interval (1161) and increase the length of the second time interval (1162) as the illumination increases. For example, the display driving circuit (221) can reduce the length of the first time interval (1161) and increase the length of the second time interval (1162) as the luminance decreases.

[0169] For example, the display driving circuit (221) can alternately light the first sub-pixels (1110) and the second sub-pixels (1120) within time intervals. For example, the display driving circuit (221) can alternately light the first sub-pixels (1110) and the second sub-pixels (1120) within a time interval (1170) following a time interval (1160).

[0170] For example, within a first time interval (1171) of a time section (1170), the display driving circuit (221) can cause the second sub-pixels (1120) among the first sub-pixels (1110) and the second sub-pixels (1120) to emit light. For example, within the first time interval (1171), the display driving circuit (221) can control the first sub-pixels (1110) to refrain from emitting light and control the second sub-pixels (1120) to emit light, thereby displaying a screen through the display panel (160) according to the privacy display mode.

[0171] For example, within a second time interval (1172) of a time section (1170), the display driving circuit (221) can cause the first sub-pixels (1110) among the first sub-pixels (1110) and the second sub-pixels (1120) to emit light. For example, within the second time interval (1172), the display driving circuit (221) can control the first sub-pixels (1110) to emit light and control the second sub-pixels (1120) to refrain from emitting light, thereby displaying a screen through the display panel (160) according to the privacy display mode.

[0172] Referring to FIGS. 11A and 11B , the display driving circuit (221) can alternately emit light from the first sub-pixels (1110) and the second sub-pixels (1120) within the privacy display mode. The display driving circuit (221) can provide WSPD by controlling the first sub-pixels (1110) to emit more light substantially together with the second sub-pixels (1120) within the privacy display mode. The fact that the first sub-pixels (1110) emit more light substantially within the privacy display mode may indicate that the user perceives that the first sub-pixels (1110) and the second sub-pixels (1120) emit light together because the length of the time interval (1160) (or the time interval (1170)) is short, making it difficult for the user (or the user's eyes) to perceive a change between the first time interval (1161) and the second time interval (1162). Providing WSPD can reduce user eye fatigue.

[0173] In FIGS. 8A to 11B , operations controlled (or configured) by the display driver circuit (221) are illustrated, but the present disclosure is not limited thereto. For example, at least one processor (210) may control the display driver circuit (221) to perform the operations of the methods described in FIGS. 8A to 11B . In one example, instructions stored in the memory (230), when individually or collectively executed by the at least one processor (210), may cause the operations of the methods described in FIGS. 8A to 11B to be performed. As a non-limiting example, the at least one processor (210) may provide an image to be displayed through the first sub-pixels to the display driver circuit (221) and refrain from providing an image to be displayed through the second sub-pixels to the display driver circuit (221) in order to control the first sub-pixels to emit light and the second sub-pixels to refrain from emitting light. At least one processor (210) may provide an image to be displayed through the second sub-pixels to the display driving circuit (221) and may refrain from providing an image to be displayed through the first sub-pixels to the display driving circuit (221) in order to control the emission of the first sub-pixels and the emission of the second sub-pixels.

[0174] FIG. 12 illustrates an example of an operational flow for a method of providing WSPD when an electronic device performs color temperature adjustment while displaying a screen according to a privacy display mode.

[0175] At least some of the methods of FIG. 12 may be performed by the electronic device (101) of FIG. 2. For example, at least some of the methods may be controlled by the display driving circuit (221) of the electronic device (101). In the following embodiments, the operations may be performed sequentially, but are not necessarily performed sequentially. For example, the order of the operations may be changed, and at least two operations may be performed in parallel.

[0176] In operation (1210), the display driving circuit (221) can display a screen through the display panel (160) according to the privacy display mode based on controlling the second sub-pixels to emit light. For example, the second sub-pixels can be included in pixels (e.g., pixel (321) of FIG. 3) within the second set (320). For example, the display driving circuit (221) can control the first sub-pixels to refrain from emitting light within the privacy display mode. For example, the first sub-pixels can be included in pixels (e.g., pixel (311) of FIG. 3) within the first set (310).

[0177] For example, the display driving circuit (221) can display a screen according to the privacy display mode by controlling the first sub-pixels to emit light and the second sub-pixels to emit light. The viewing angle of the screen displayed according to the privacy display mode can correspond to the viewing angle (182) of Fig. 1.

[0178] In operation (1220), the display driving circuit (221) can detect an event for adjusting the color temperature of the display panel (160) with respect to the screen.

[0179] For example, the event may include activating a blue light filter (BLF) function of the electronic device (101), or obtaining an input regarding a setting menu within the screen for adjusting the color temperature of the display panel (160). However, the present disclosure is not limited thereto. For example, the display driving circuit (221) may identify the event to adjust the color temperature of the display panel (160) based on data acquired using a sensor (e.g., an illuminance sensor) of the electronic device (101), or may receive a command from at least one processor (210) to adjust the color temperature of the display panel (160). As a non-limiting example, the command may be output based on a trained model within the at least one processor (210) using the data, or may be generated using output information.

[0180] In operation (1230), the display driving circuit (221) can adjust the color temperature of the display panel (160) with respect to the screen by identifying one of the first sub-pixels based on the event and controlling the identified sub-pixel among the first sub-pixels to emit more light.

[0181] For example, the display driving circuit (221) is, based on the above event,

[0182] One of the first sub-pixels can be identified. For example, the identified sub-pixel can be identified according to the color temperature to be adjusted of the display panel (160).

[0183] For example, the display driver circuit (221) can identify the sub-pixel among the first sub-pixels based on a comparison between the color temperature to be adjusted and the reference color temperature. The display driver circuit (221) can determine whether the color temperature to be adjusted exceeds the reference color temperature. For example, when the display driver circuit (221) determines that the color temperature to be adjusted exceeds the reference color temperature, the display driver circuit (221) can identify the sub-pixel that emits light of a first color (e.g., blue) having a first wavelength among the first sub-pixels. For example, when the display driver circuit (221) determines that the color temperature to be adjusted is less than the reference color temperature, the display driver circuit (221) can identify the sub-pixel that emits light of a second color (e.g., red) having a second wavelength among the first sub-pixels. For example, the second wavelength may be longer than the first wavelength.

[0184] For example, the display driving circuit (221) can control the identified sub-pixel among the first sub-pixels to further emit light in order to adjust the color temperature of the display panel (160) within the privacy display mode. For example, the display driving circuit (221) can control the identified sub-pixel among the first sub-pixels to further emit light while displaying the screen within the privacy display mode based on controlling the second sub-pixels to emit light, thereby adjusting the color temperature of the display panel (160) with respect to the screen.

[0185] For example, the color temperature of the display panel (160) may be referred to as the color temperature of the light sources (e.g., pixels) of the display panel (160), or the color temperature of the screen displayed on the display panel (160).

[0186] The operations described above can be performed by the electronic device (1301) in FIG. 13.

[0187] FIG. 13 is a block diagram of an electronic device within a network environment according to various embodiments.

[0188] Referring to FIG. 13, in a network environment (1300), an electronic device (1301) may communicate with an electronic device (1302) via a first network (1398) (e.g., a short-range wireless communication network), or may communicate with at least one of an electronic device (1304) or a server (1308) via a second network (1399) (e.g., a long-range wireless communication network). According to one embodiment, the electronic device (1301) may communicate with the electronic device (1304) via the server (1308). According to one embodiment, the electronic device (1301) may include a processor (1320), a memory (1330), an input module (1350), an audio output module (1355), a display module (1360), an audio module (1370), a sensor module (1376), an interface (1377), a connection terminal (1378), a haptic module (1379), a camera module (1380), a power management module (1388), a battery (1389), a communication module (1390), a subscriber identification module (1396), or an antenna module (1397). In some embodiments, the electronic device (1301) may omit at least one of these components (e.g., the connection terminal (1378)), or may have one or more other components added. In some embodiments, some of these components (e.g., sensor module (1376), camera module (1380), or antenna module (1397)) may be integrated into a single component (e.g., display module (1360)).

[0189] The processor (1320) may, for example, execute software (e.g., a program (1340)) to control at least one other component (e.g., a hardware or software component) of the electronic device (1301) connected to the processor (1320) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (1320) may store commands or data received from other components (e.g., a sensor module (1376) or a communication module (1390)) in a volatile memory (1332), process the commands or data stored in the volatile memory (1332), and store result data in a non-volatile memory (1334). According to one embodiment, the processor (1320) may include a main processor (1321) (e.g., a central processing unit or an application processor) or a secondary processor (1323) (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 (1321). For example, when the electronic device (1301) includes the main processor (1321) and the secondary processor (1323), the secondary processor (1323) may be configured to use less power than the main processor (1321) or to be specialized for a given function. The secondary processor (1323) may be implemented separately from the main processor (1321) or as a part thereof.

[0190] The auxiliary processor (1323) may control at least a portion of functions or states associated with at least one component (e.g., the display module (1360), the sensor module (1376), or the communication module (1390)) of the electronic device (1301), for example, on behalf of the main processor (1321) while the main processor (1321) is in an inactive (e.g., sleep) state, or together with the main processor (1321) while the main processor (1321) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (1323) (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 (1380) or a communication module (1390)). In one embodiment, the auxiliary processor (1323) (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 (1301) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (1308)). 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.

[0191] The memory (1330) can store various data used by at least one component (e.g., the processor (1320) or the sensor module (1376)) of the electronic device (1301). The data can include, for example, software (e.g., the program (1340)) and input data or output data for commands related thereto. The memory (1330) can include volatile memory (1332) or non-volatile memory (1334).

[0192] The program (1340) may be stored as software in memory (1330) and may include, for example, an operating system (1342), middleware (1344), or an application (1346).

[0193] The input module (1350) can receive commands or data to be used in a component of the electronic device (1301) (e.g., a processor (1320)) from an external source (e.g., a user) of the electronic device (1301). The input module (1350) 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).

[0194] The audio output module (1355) can output audio signals to the outside of the electronic device (1301). The audio output module (1355) 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.

[0195] The display module (1360) can visually provide information to an external device (e.g., a user) of the electronic device (1301). The display module (1360) 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 (1360) 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.

[0196] The audio module (1370) can convert sound into an electrical signal, or vice versa. According to one embodiment, the audio module (1370) can acquire sound through the input module (1350), output sound through the sound output module (1355), or an external electronic device (e.g., electronic device (1302)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (1301).

[0197] The sensor module (1376) can detect the operating status (e.g., power or temperature) of the electronic device (1301) 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 (1376) 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.

[0198] The interface (1377) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (1301) with an external electronic device (e.g., the electronic device (1302)). In one embodiment, the interface (1377) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0199] The connection terminal (1378) may include a connector through which the electronic device (1301) may be physically connected to an external electronic device (e.g., the electronic device (1302)). According to one embodiment, the connection terminal (1378) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0200] The haptic module (1379) 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. In one embodiment, the haptic module (1379) can include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0201] The camera module (1380) can capture still images and videos. According to one embodiment, the camera module (1380) may include one or more lenses, image sensors, image signal processors, or flashes.

[0202] The power management module (1388) can manage power supplied to the electronic device (1301). According to one embodiment, the power management module (1388) can be implemented, for example, as at least a part of a power management integrated circuit (PMIC).

[0203] A battery (1389) may power at least one component of the electronic device (1301). In one embodiment, the battery (1389) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0204] The communication module (1390) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (1301) and an external electronic device (e.g., electronic device (1302), electronic device (1304), or server (1308)), and the performance of communication through the established communication channel. The communication module (1390) may operate independently from the processor (1320) (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 (1390) may include a wireless communication module (1392) (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 (1394) (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 (1304) via a first network (1398) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (1399) (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 local area network or a wide area network)). 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 (1392) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (1396) to verify or authenticate the electronic device (1301) within a communication network such as the first network (1398) or the second network (1399).

[0205] The wireless communication module (1392) 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)), minimization of terminal power and connection of multiple terminals (mMTC (massive machine type communications)), or high reliability and low latency communications (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (1392) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (1392) can support various technologies for securing performance in high-frequency bands, 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 (1392) can support various requirements specified in the electronic device (1301), an external electronic device (e.g., the electronic device (1304)), or a network system (e.g., the second network (1399)). According to one embodiment, the wireless communication module (1392) may support a peak data rate (e.g., 20 Gbps or more) for eMBB implementation, a loss coverage (e.g., 164 dB or less) for mMTC implementation, or a U-plane latency (e.g., 0.5 ms or less for downlink (DL) and uplink (UL) each, or 1 ms or less for round trip) for URLLC implementation.

[0206] The antenna module (1397) 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 (1397) 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 (1397) 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 (1398) or the second network (1399), may be selected from the plurality of antennas by, for example, the communication module (1390). A signal or power may be transmitted or received between the communication module (1390) and the 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 (1397).

[0207] According to various embodiments, the antenna module (1397) may form a mmWave antenna module. According to 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.

[0208] 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)).

[0209] According to one embodiment, commands or data may be transmitted or received between the electronic device (1301) and an external electronic device (1304) via a server (1308) connected to a second network (1399). Each of the external electronic devices (1302, or 104) may be the same or a different type of device as the electronic device (1301). According to one embodiment, all or part of the operations executed in the electronic device (1301) may be executed in one or more of the external electronic devices (1302, 104, or 108). For example, when the electronic device (1301) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (1301) 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 (1301). The electronic device (1301) 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 (1301) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (1304) may include an Internet of Things (IoT) device. The server (1308) may be an intelligent server utilizing machine learning and / or a neural network.In one embodiment, an external electronic device (1304) or server (1308) may be included in the second network (1399). The electronic device (1301) may be applied to intelligent services (e.g., smart homes, smart cities, smart cars, or healthcare) based on 5G communication technology and IoT-related technology.

[0210] FIG. 14 is a block diagram of a display module according to various embodiments.

[0211] Referring to FIG. 14, a display module (1360) may include a display panel (1410) and a display driver IC (DDI) (1430) for controlling the same. The DDI (1430) may include an interface module (1431), a memory (1433) (e.g., a buffer memory), an image processing module (1435), or a mapping module (1437). The DDI (1430) may receive, for example, image data or image control signals corresponding to commands for controlling the image data, from another component of the electronic device (1301) through the interface module (1431). For example, according to one embodiment, image information may be received from a processor (1320) (e.g., a main processor (1321) (e.g., an application processor) or an auxiliary processor (1323) (e.g., a graphics processing unit) that operates independently of the function of the main processor (1321). The DDI (1430) may communicate with a touch circuit (1450) or a sensor module (1376) through the interface module (1431). In addition, the DDI (1430) may store at least a part of the received image information in the memory (1433), for example, in units of frames. The image processing module (1435) 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 panel (1410). The mapping module (1437) may output a voltage value corresponding to the image data preprocessed or postprocessed through the image processing module (1435). Alternatively, a current value may be generated. In one embodiment, the generation of the voltage value or current value may be performed at least in part based on, for example, the properties of the pixels of the display panel (1410), such as the arrangement of the pixels (RGB stripe or pentile structure), or the size of each sub-pixel.At least some pixels of the display panel (1410) 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 panel (1410).

[0212] According to one embodiment, the display module (1360) may further include a touch circuit (1450). The touch circuit (1450) may include a touch sensor (1451) and a touch sensor IC (1453) for controlling the touch sensor (1451). The touch sensor IC (1453) may control the touch sensor (1451) to detect, for example, a touch input or a hovering input for a specific location of the display panel (1410). For example, the touch sensor IC (1453) may detect a touch input or a hovering input by measuring a change in a signal (e.g., voltage, light quantity, resistance, or charge quantity) for a specific location of the display panel (1410). The touch sensor IC (1453) may provide information (e.g., location, area, pressure, or time) regarding the detected touch input or hovering input to the processor (1320). According to one embodiment, at least a portion of the touch circuit (1450) (e.g., touch sensor IC (1453)) may be included as part of the display driver IC (1430), or as part of the display panel (1410), or as part of another component (e.g., auxiliary processor (1323)) disposed external to the display module (1360).

[0213] According to one embodiment, the display module (1360) 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 (1376), 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 (1360) (e.g., the display panel (1410) or the DDI (1430)) or a part of the touch circuit (1450). For example, when the sensor module (1376) embedded in the display module (1360) 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 panel (1410). For another example, when the sensor module (1376) embedded in the display module (1360) includes a pressure sensor, the pressure sensor can obtain pressure information associated with a touch input through a part or the entire area of ​​the display panel (1410). According to one embodiment, the touch sensor (1451) or the sensor module (1376) can be placed between pixels of a pixel layer of the display panel (1410), or above or below the pixel layer.

[0214] Some of the operations described above may be executed (or performed) by an artificial intelligence (AI) system as described with reference to FIG. 15. For example, the AI ​​system may be utilized to provide a WSPD based on one or more contents provided by a screen displayed on a display panel (160), the illumination around the electronic device (101) (e.g., identified by an illumination sensor (not shown) of the electronic device (101), the luminance of the screen displayed on the display panel (160), and / or the attitude of the electronic device (101) (e.g., identified by an inertial sensor of the electronic device (101). For example, the AI ​​system may be utilized to determine a command to provide a WSPD or a value associated with a WSPD.

[0215] Figure 15 is a schematic diagram of an exemplary AI (artificial intelligence) system.

[0216] Referring to FIG. 15, the AI ​​system (1500) may include an input / output interface (1510), an AI (artificial intelligence) framework (1520), a generative AI model (1530), an application / service component (1580), and / or a knowledge repository (1590).

[0217] The input / output interface (1510) can receive input. The input can include user input and / or data acquired or generated by an electronic device (e.g., the electronic device (101) or the electronic device (1301) described above). The data can include images, videos, and / or sensor data generated by at least one processor (e.g., at least one processor (210) or processor (1320)) of the electronic device (e.g., illuminance data around the electronic device acquired from a sensor or sensor hub (e.g., a coprocessor (1323), posture data (or orientation data) of the electronic device, temperature inside the electronic device (e.g., temperature of the display (220) or temperature of the at least one processor (210)), size information of a display area of ​​the display (220), and / or images acquired through an image sensor (e.g., included in a camera module (1380)) of the electronic device). The user input may include natural language, touch data obtained through touch circuitry included within the display panel (160) (e.g., used to identify input from a finger and / or a stylus), images displayed (and / or to be displayed) on the display panel (160), and / or video. As a non-limiting example, the user input may be received by the input / output interface (1510) together with context information. The context information may be described as additional information obtained in relation to the user input. The context information may relate to a state when the user input is received (e.g., including a state of the electronic device and / or a state surrounding the electronic device (e.g., a user state)). For example, the context information may include information about one or more software applications running within the electronic device when the user input is received.For example, the contextual information may include information about the location of the electronic device (or the location of the user of the electronic device) at the time the user input is received. For example, the user input may be integrated with the contextual information. For example, the user input integrated with the contextual information may be received by the input / output interface (1510).

[0218] The input / output interface (1510) can transmit (or provide) output. The output may include a result (or result information) generated or obtained by the AI ​​system (1500) based at least in part on the input. The format of the output may vary. For example, the output may include natural language. For example, the output may include content (e.g., including media content and / or multimedia content). For example, the output may include an action related to a user of the electronic device. For example, the output may have a format according to a user setting of the electronic device.

[0219] The input / output interface (1510) can be described as a user query / response interface (1510).

[0220] The AI ​​framework (1520) can be used to obtain information (or data) about the input from the input / output interface (1510) and control one or more components related to the AI ​​system (1500) using the obtained information.

[0221] For example, the prompt design component (1521) within the AI ​​framework (1520) can use the acquired information to generate or obtain prompts for a generative AI model (1530) (e.g., including a large language model (LLM) or a large multimodal model (LMM)). For example, the prompt design component (1521) can be described as an AI component that utilizes a learning algorithm and / or a neural network to provide enhanced prompts over time. For example, the prompt design component (1521) can use the acquired information to access a knowledge component (e.g., a knowledge repository (1590)) that includes user preference data, a prompt library, and / or prompt examples to generate or obtain prompts. The generated prompts can be provided to the generative AI model (1530) (e.g., including an LLM or LMM).

[0222] For example, the API / plugin management component (1522) within the AI ​​framework (1520) may be utilized to facilitate communication for additional information requested (or induced) in connection with the prompt provided (or to be provided) to the generative AI model (1530). For example, the API / plugin management component (1522) may be utilized to create or establish channels for communication with various data sources (e.g., knowledge repositories (1590)). For example, the API / plugin management component (1522) may facilitate access to at least some of the data sources. For example, the API / plugin management component (1522) may be utilized to request another component (e.g., an application / service component (1580)) to perform feedback (or response) in response to the prompt. As a non-limiting example, information obtained (or generated) through the API / plugin management component (1522) may be provided to the prompt design component (1521) for generating a prompt. As a non-limiting example, information obtained (or generated) through the API / plugin management component (1522) may be provided to the generative AI model (1530).

[0223] For example, the improvement component (1523) within the AI ​​framework (1520) can at least partially tune (or adjust) (or change) the result (e.g., content) obtained (or output) from the generative AI model (1530). For example, the improvement component (1523) can determine or verify whether the content obtained from the generative AI model (1530) is relevant to the input. For example, the improvement component (1523) can determine or verify whether the content obtained from the generative AI model (1530) contains biased content. For example, the improvement component (1523) can determine or verify whether the content obtained from the generative AI model (1530) contains harmful content. For example, the improvement component (1523) can support or assist in performing additional processing to improve the content obtained from the generative AI model (1530). For example, the improvement component (1523) may support providing hints to the user to improve the content.

[0224] A generative AI model (1530) can be described as an artificial intelligence neural network that generates feedback in response to a prompt. For example, the feedback may include additional data and / or information related to the prompt, but relative to the prompt. For example, the feedback may include new content related to the prompt. For example, the generative AI model (1530) may include a model that generates images and / or a model that generates language. For example, the model that generates images may include a generative adversarial network (GAN) and / or a variational autoencoder (VAE). For example, the model that generates images may include a diffusion-based generative model (e.g., a transformer VAE). For example, the model that generates language may include CHAT-GPT 3 and / or CHAT-GPT 4. For example, a generative AI model (1530) may include an LMM that generates the feedback by recognizing text, images, and / or speech.

[0225] As a non-limiting example, the AI ​​framework (1520) and / or the generative AI model (1530) may be included within an AI module (e.g., including a processing circuit) within the electronic device. For example, the AI ​​module may be operatively coupled with at least one processor of the electronic device (e.g., at least one processor (210) or processor (1320)). For example, the AI ​​module may be operatively coupled with a display driving circuit of the electronic device (e.g., a display driving circuit (221) or a DDI (1430)). For example, the AI ​​module may be operatively coupled with a sensor hub of the electronic device for one or more sensors within the electronic device.

[0226] The present disclosure can further utilize at least some of the first sub-pixels within the privacy display mode to protect the user's privacy and reduce eye fatigue. For example, the display driving circuit (221) can control at least some of the first sub-pixels and the second sub-pixels to emit light in order to display a screen through the display panel (160) according to the privacy display mode. Accordingly, the present disclosure can reduce eye fatigue of the user while utilizing the privacy display mode to protect the user's privacy.

[0227] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0228] As described above, the electronic device (101) may include a display panel (160). The display panel (160) may include a first layer including a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions. The display panel (160) may include a second layer disposed under the first layer. The second layer may include first sub-pixels disposed under each of the first light-transmitting portions and configured to emit light, and second sub-pixels disposed under each of the second light-transmitting portions and configured to emit light. A viewing angle according to the second sub-pixels and the second light-transmitting portions may be narrower than a viewing angle according to the first light-transmitting portions and the first sub-pixels. The electronic device (101) may include a display driving circuit (221). The display driving circuit (221) may be configured to display a screen through the display panel (160) in a privacy display mode based on controlling the second sub-pixels to emit light. The display driving circuit (221) may be configured to detect an event for adjusting a color temperature of the display panel (160) with respect to the screen. The display driving circuit (221) may be configured to identify one (a) sub-pixel among the first sub-pixels based on the event and control the sub-pixel identified among the first sub-pixels to emit further light, thereby adjusting the color temperature of the display panel (160) with respect to the screen.

[0229] According to one embodiment, the display driver circuit (221) may be configured to determine whether the color temperature to be adjusted based on the detected event exceeds a reference color temperature. The display driver circuit (221) may be configured to identify a sub-pixel among the first sub-pixels that emits light of a first color having a first wavelength upon determining that the color temperature exceeds the reference color temperature. The display driver circuit (221) may be configured to identify a sub-pixel among the first sub-pixels that emits light of a second color having a second wavelength longer than the first wavelength upon determining that the color temperature is less than the reference color temperature.

[0230] According to one embodiment, light emitted from the first sub-pixels may have a first spectral power distribution (SPD). Light emitted from the second sub-pixels may have a second SPD that is narrower than the first SPD.

[0231] According to one embodiment, the first SPD may be defined based on a first range of wavelengths of light of a first color emitted from the first sub-pixels, a second range of wavelengths of light of a second color emitted from the first sub-pixels, and a third range of wavelengths of light of a third color emitted from the first sub-pixels. The second SPD may be defined based on a fourth range narrower than the first range of wavelengths of light of the first color emitted from the second sub-pixels, a fifth range narrower than the second range of wavelengths of light of the second color emitted from the second sub-pixels, and a sixth range narrower than the third range of wavelengths of light of the third color emitted from the second sub-pixels.

[0232] In one embodiment, a first wavelength having a maximum power value among the wavelengths within the first range may be different from a second wavelength having a maximum power value among the wavelengths within the fourth range. A third wavelength having a maximum power value among the wavelengths within the second range may be different from a fourth wavelength having a maximum power value among the wavelengths within the fifth range. A fifth wavelength having a maximum power value among the wavelengths within the third range may be different from a sixth wavelength having a maximum power value among the wavelengths within the sixth range.

[0233] According to one embodiment, the display driving circuit (221) may be configured to display, through the display panel (160), a screen having a second viewing angle wider than a first viewing angle of the screen displayed according to the privacy display mode by controlling the first sub-pixels to emit light and the second sub-pixels to emit light according to a normal display mode different from the privacy display mode.

[0234] According to one embodiment, the event may include activating a blue light filter (BLF) function of the electronic device (101), or obtaining an input regarding a settings menu within the screen that adjusts the color temperature of the display panel (160).

[0235] According to one embodiment, the BM of the first layer may include black matrix (BM) portions such that light emitted from the second sub-pixels is partially blocked by some of the BM portions defining the second light-transmitting portions.

[0236] In one embodiment, the first sub-pixels may be aligned with each of the first light-transmitting portions. Each of the second sub-pixels may be aligned with each of the second light-transmitting portions.

[0237] According to one embodiment, the electronic device (101) may include at least one sensor. The electronic device (101) may include a memory (230) that stores instructions and includes one or more storage media. The electronic device (101) may include at least one processor (210) that includes a processing circuit. The instructions, when individually or collectively executed by the at least one processor (210), may cause the electronic device (101) to obtain sensing data using the at least one sensor. The instructions, when individually or collectively executed by the at least one processor (210), may cause the electronic device (101) to provide the sensing data to a trained model. The instructions, when individually or collectively executed by the at least one processor (210), may cause the electronic device (101) to transmit a command to the display driving circuit (221) to adjust the color temperature of the display panel (160) with respect to the screen based on a result obtained from the trained model. The display driving circuit (221) may be configured to detect the event for adjusting the color temperature of the display panel (160) with respect to the screen based on receiving the command.

[0238] As described above, the electronic device (101) may include a display panel (160). The display panel (160) may include a first layer including a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions. The display panel (160) may include a second layer disposed under the first layer. The second layer may include first sub-pixels disposed under each of the first light-transmitting portions and configured to emit light, and second sub-pixels disposed under each of the second light-transmitting portions and configured to emit light. A viewing angle according to the second sub-pixels and the second light-transmitting portions may be narrower than a viewing angle according to the first light-transmitting portions and the first sub-pixels. The electronic device (101) may include a display driving circuit (221). The display driving circuit (221) may be configured to display a screen through the display panel (160) according to the privacy display mode by controlling the first sub-pixels to refrain from emitting light and controlling the second sub-pixels to emit light. The display driving circuit (221) may be configured to adjust the color temperature of the display panel (160) with respect to the screen displayed through the display panel (160) according to the privacy display mode by controlling one (a) of the first sub-pixels to emit light and controlling the second sub-pixels to emit light, based on detecting an event.

[0239] According to one embodiment, the display driving circuit (221) may be configured to determine whether the color temperature to be adjusted based on the detected event exceeds a reference color temperature. The display driving circuit (221) may be configured to adjust the color temperature of the display panel (160) by identifying a sub-pixel among the first sub-pixels that emits light of a first color having a first wavelength and controlling the sub-pixel emitting light of the first color to emit more light, upon determining that the color temperature exceeds the reference color temperature. The display driving circuit (221) may be configured to adjust the color temperature of the display panel (160) by identifying a sub-pixel among the first sub-pixels that emits light of a second color having a second wavelength longer than the first wavelength and controlling the sub-pixel emitting light of the second color to emit more light, upon determining that the color temperature is less than the reference color temperature.

[0240] According to one embodiment, light emitted from the first sub-pixels may have a first spectral power distribution (SPD). Light emitted from the second sub-pixels may have a second SPD that is narrower than the first SPD.

[0241] According to one embodiment, the first SPD may be defined based on a first range of wavelengths of light of a first color emitted from the first sub-pixels, a second range of wavelengths of light of a second color emitted from the first sub-pixels, and a third range of wavelengths of light of a third color emitted from the first sub-pixels. The second SPD may be defined based on a fourth range narrower than the first range of wavelengths of light of the first color emitted from the second sub-pixels, a fifth range narrower than the second range of wavelengths of light of the second color emitted from the second sub-pixels, and a sixth range narrower than the third range of wavelengths of light of the third color emitted from the second sub-pixels.

[0242] According to one embodiment, the display driving circuit (221) may be configured to display, through the display panel (160), a screen having a second viewing angle wider than a first viewing angle of the screen displayed according to the privacy display mode by controlling the first sub-pixels to emit light and the second sub-pixels to emit light according to a normal display mode different from the privacy display mode.

[0243] As described above, the electronic device (101) may include a display panel (160). The display panel (160) may include a first layer including a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions. The display panel (160) may include a second layer disposed under the first layer. The second layer may include first sub-pixels disposed under each of the first light-transmitting portions and configured to emit light, and second sub-pixels disposed under each of the second light-transmitting portions and configured to emit light. A viewing angle according to the second sub-pixels and the second light-transmitting portions may be narrower than a viewing angle according to the first light-transmitting portions and the first sub-pixels. The electronic device (101) may include a display driving circuit (221). The display driving circuit (221) may be configured to display a screen having a first viewing angle through the display panel (160) according to a normal display mode by controlling the first sub-pixels to emit light and the second sub-pixels to emit light. The display driving circuit (221) may be configured to display a screen having a second viewing angle narrower than the first viewing angle by controlling the first sub-pixels to refrain from emitting light and the second sub-pixels to emit light within a first time interval of a time period, and controlling the first sub-pixels to refrain from emitting light and the second sub-pixels to refrain from emitting light within a second time interval of the time period, according to a privacy display mode different from the normal display mode.

[0244] According to one embodiment, light emitted from the first sub-pixels may have a first spectral power distribution (SPD). Light emitted from the second sub-pixels may have a second SPD that is narrower than the first SPD.

[0245] According to one embodiment, the display driving circuit (221) may be configured to display a screen having the second viewing angle by controlling, according to the privacy display mode, to refrain from emitting light from the first sub-pixels and to control to emit light from the second sub-pixels within a first time interval of another time interval following the time interval, and controlling to refrain from emitting light from the first sub-pixels and to control to refrain from emitting light from the second sub-pixels within a second time interval of the other time interval.

[0246] According to one embodiment, the time interval may be determined based on the refresh rate of the display panel (160). The length of the first time interval may correspond to the second time interval.

[0247] According to one embodiment, the display driving circuit (221) may be configured to identify a data voltage for displaying a lower brightness than the maximum brightness displayable by the first sub-pixels. The display driving circuit (221) may be configured to control the first sub-pixels to emit light by applying the data voltage to the first sub-pixels within the second time interval of the time section.

[0248] The technical problems to be achieved in the present disclosure are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by a person having ordinary knowledge in the technical field to which the present disclosure pertains.

[0249] 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.

[0250] 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 component (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.

[0251] 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).

[0252] Various embodiments of the present document may be implemented as software (e.g., a program (1040)) including one or more instructions stored in a storage medium (e.g., an internal memory (1036) or an external memory (1038)) readable by a machine (e.g., an electronic device (1001)). For example, a processor (e.g., a processor (1020)) of the machine (e.g., an electronic device (1001)) 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.

[0253] According to one embodiment, the method according to various embodiments disclosed in the present document may be provided as a computer program product. The computer program product may be traded as a product 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.

[0254] 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 electronic devices, A display panel, said display panel, A first layer comprising a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions; and A second layer disposed below the first layer, the second layer comprising: First sub-pixels arranged below each of the first light-transmitting portions and configured to emit light, and Second sub-pixels are respectively disposed below the second light-transmitting portions and configured to emit light, wherein a viewing angle according to the second sub-pixels and the second light-transmitting portions is narrower than a viewing angle according to the first light-transmitting portions and the first sub-pixels; and Includes a display driving circuit, The above display driving circuit: Based on controlling the second sub-pixels to emit light, a screen is displayed through the display panel according to a privacy display mode; Detecting an event for adjusting the color temperature of the display panel with respect to the above screen; and Based on the above event, the display panel is configured to adjust the color temperature with respect to the screen by identifying one (a) sub-pixel among the first sub-pixels and controlling the identified sub-pixel among the first sub-pixels to emit further light. Electronic devices.

2. In claim 1, The above display driving circuit: Determine whether the color temperature to be adjusted based on the detected event exceeds the reference color temperature; Identifying a sub-pixel among the first sub-pixels that emits light of a first color having a first wavelength, based on determining that the color temperature exceeds the reference color temperature; and configured to identify the sub-pixel that emits light of a second color having a second wavelength longer than the first wavelength among the first sub-pixels, based on determining that the color temperature is less than the reference color temperature; Electronic devices.

3. In claim 1, The light emitted from the first sub-pixels has a first SPD (spectral power distribution), and The light emitted from the second sub-pixels has a second SPD narrower than the first SPD. Electronic devices.

4. In claim 3, The first SPD is defined based on a first range of wavelengths of light of a first color emitted from the first sub-pixels, a second range of wavelengths of light of a second color emitted from the first sub-pixels, and a third range of wavelengths of light of a third color emitted from the first sub-pixels, and The second SPD is defined based on a fourth range narrower than the first range of wavelengths of the first color of light emitted from the second sub-pixels, a fifth range narrower than the second range of wavelengths of the second color of light emitted from the second sub-pixels, and a sixth range narrower than the third range of wavelengths of the third color of light emitted from the second sub-pixels. Electronic devices.

5. In claim 4, A first wavelength having a maximum power value among the wavelengths within the first range is different from a second wavelength having a maximum power value among the wavelengths within the fourth range, A third wavelength having a maximum power value among the wavelengths within the second range is different from a fourth wavelength having a maximum power value among the wavelengths within the fifth range, and The fifth wavelength having the maximum power value among the wavelengths within the third range is different from the sixth wavelength having the maximum power value among the wavelengths within the sixth range. Electronic devices.

6. In claim 1, The above display driving circuit: According to a normal display mode different from the privacy display mode, by controlling the first sub-pixels to emit light and the second sub-pixels to emit light, a screen having a second viewing angle wider than the first viewing angle of the screen displayed according to the privacy display mode is displayed through the display panel. Electronic devices.

7. In claim 1, The event comprises activating a blue light filter (BLF) function of the electronic device, or obtaining input regarding a settings menu within the screen that adjusts the color temperature of the display panel. Electronic devices.

8. In claim 1, The BM of the first layer includes BM portions so as to partially block light emitted from the second sub-pixels by some of the BM (black matrix) portions defining the second light-transmitting portions. Electronic devices.

9. In claim 1, The first sub-pixels are aligned to each of the first light-transmitting portions, and Each of the second sub-pixels is aligned with each of the second light-transmitting portions, Electronic devices.

10. In claim 1, The above electronic device, At least one sensor; A memory storing instructions and including one or more storage media; and At least one processor comprising a processing circuit, The above instructions, when individually or collectively executed by the at least one processor, cause the electronic device to: Obtaining sensing data using at least one sensor; Providing the above sensing data to the trained model; Based on the results obtained from the trained model, a command to adjust the color temperature of the display panel with respect to the screen is transmitted to the display driving circuit, The above display driving circuit: Based on receiving the command, configured to detect the event for adjusting the color temperature of the display panel with respect to the screen, Electronic devices.

11. In electronic devices, A display panel, said display panel, A first layer comprising a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions; and A second layer disposed below the first layer, the second layer comprising: First sub-pixels arranged below each of the first light-transmitting portions and configured to emit light, and Second sub-pixels are respectively disposed below the second light-transmitting portions and configured to emit light, wherein a viewing angle according to the second sub-pixels and the second light-transmitting portions is narrower than a viewing angle according to the first light-transmitting portions and the first sub-pixels; and Includes a display driving circuit, The above display driving circuit: By controlling the first sub-pixels to refrain from emitting light and controlling the second sub-pixels to emit light, a screen is displayed through the display panel according to a privacy display mode; and Based on detecting an event, one (a) of the first sub-pixels is controlled to emit light and the second sub-pixels are controlled to emit light, thereby adjusting a color temperature of the display panel with respect to the screen displayed through the display panel according to the privacy display mode. Electronic devices.

12. In claim 11, The above display driving circuit: Determine whether the color temperature to be adjusted based on the detected event exceeds the reference color temperature; By determining that the color temperature exceeds the reference color temperature, the color temperature of the display panel is adjusted by identifying the sub-pixel that emits light of a first color having a first wavelength among the first sub-pixels and controlling the sub-pixel that emits light of the first color to further emit light; and According to determining that the color temperature is less than the reference color temperature, the display panel is configured to adjust the color temperature by identifying the sub-pixel that emits light of a second color having a second wavelength longer than the first wavelength among the first sub-pixels and controlling the sub-pixel that emits light of the second color to emit more light. Electronic devices.

13. In claim 11, The light emitted from the first sub-pixels has a first SPD (spectral power distribution), and The light emitted from the second sub-pixels has a second SPD narrower than the first SPD. Electronic devices.

14. In claim 13, The first SPD is defined based on a first range of wavelengths of light of a first color emitted from the first sub-pixels, a second range of wavelengths of light of a second color emitted from the first sub-pixels, and a third range of wavelengths of light of a third color emitted from the first sub-pixels, and The second SPD is defined based on a fourth range narrower than the first range of wavelengths of the first color of light emitted from the second sub-pixels, a fifth range narrower than the second range of wavelengths of the second color of light emitted from the second sub-pixels, and a sixth range narrower than the third range of wavelengths of the third color of light emitted from the second sub-pixels. Electronic devices.

15. In electronic devices, A display panel, said display panel, A first layer comprising a black matrix (BM) defining first light-transmitting portions and second light-transmitting portions smaller than the first light-transmitting portions; and A second layer disposed below the first layer, the second layer comprising: First sub-pixels arranged below each of the first light-transmitting portions and configured to emit light, and Second sub-pixels are respectively disposed below the second light-transmitting portions and configured to emit light, wherein a viewing angle according to the second sub-pixels and the second light-transmitting portions is narrower than a viewing angle according to the first light-transmitting portions and the first sub-pixels; and Includes a display driving circuit, The above display driving circuit: By controlling the first sub-pixels to emit light and the second sub-pixels to emit light, a screen having a first viewing angle is displayed through the display panel according to a normal display mode; and Depending on the privacy display mode that is different from the general display mode above: Within a first time interval of a time period, controlling the first sub-pixels to refrain from emitting light and controlling the second sub-pixels to emit light, and Within the second time interval of the above time section, by controlling the first sub-pixels to emit light and controlling the second sub-pixels to refrain from emitting light, configured to display a screen having a second viewing angle narrower than the first viewing angle, Electronic devices.

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