Slidable electronic device for controlling flexible display panel, method therefor, and non-transitory computer-readable storage medium

Abstract

The slidable electronic device may comprise a housing including a first housing part and a second housing part fastened to the first housing part. The second housing part may be configured to slide with respect to the first housing part. The slidable electronic device may comprise a flexible display panel coupled to the first housing part and the second housing part such that, as the second housing part slides with respect to the first housing part, the flexible display panel is at least partially rolled into the first housing part, thereby changing the size of an active area visible from the front side of the housing. The slidable electronic device may comprise display driving circuit inside the housing. The display driving circuit may be configured such that, in a state in which the first part of the active area is viewable from the front side, and the second part of the active area is not viewable from the front side, at least some of first light-emitting elements positioned in the first area inside the first part having round corners adjacent to the boundary between the first part and the second part emit light in order to display a screen inside the first area, and while the screen is displayed in the state, at least some of second light-emitting elements in the second area inside the first part positioned on the outer periphery of the round corners emit light during a reference time.

Description

A slidable electronic device, method, and non-transitory computer-readable storage medium for controlling a flexible display panel

[0001] The following descriptions relate to a slideable electronic device, method, and non-transitory computer-readable storage medium for controlling a flexible display panel.

[0002] An electronic device may include a display to provide visual information and / or visual data. The display may be deformable. For example, because the display is deformable, the display may provide a relatively wide screen or a relatively compact structure.

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

[0004] A slidable electronic device is provided. The slidable electronic device may include a housing including a first housing part and a second housing part engaged with the first housing part. The second housing part may be configured to slide relative to the first housing part. The slidable electronic device may include a flexible display panel coupled to the first housing part and the second housing part such that the second housing part is at least partially rolled into the first housing part as the second housing part is slid relative to the first housing part, thereby changing the size of an active area viewable from a front side of the housing. The slidable electronic device may include a display driving circuit within the housing. The display driving circuit may be configured to emit light at least some of the first light-emitting elements positioned within the first region to display a screen within the first region within the first part having rounded corners adjacent to a boundary between the first part and the second part, in a state in which a first part of the active area is visible from the front side and a second part of the active area is not visible from the front side. The display driving circuit may be configured to emit light at least some of the second light-emitting elements positioned within the second region within the first part, which is positioned outside the rounded corners, for a reference time while the screen is displayed within the state.

[0005] A method is provided. The method can be implemented in a sliderable electronic device having a flexible display panel including a housing and an active area configured to be at least partially rolled into the housing. The method can include emitting light for a reference time, at least some of first light-emitting elements positioned within a first area within the first part, the first area having rounded corners adjacent to a boundary between the first part and the second part, to display a screen in a state in which a first part of the active area is visible from a front side of the sliderable electronic device and a second part of the active area is not visible from the front side. The method can include emitting light for at least some of second light-emitting elements within a second area within the first part, the second area being outside the rounded corners, while the screen is displayed in the state.

[0006] A non-transitory computer-readable storage medium is provided. The non-transitory computer-readable storage medium may store one or more programs. The one or more programs may include instructions that, when executed by a sliderable electronic device having a flexible display panel including a housing and an active area configured to be at least partially rolled into the housing, cause the sliderable electronic device to emit light at least some of first light-emitting elements positioned within a first area within the first part, the first area having rounded corners adjacent to a boundary between the first part and the second part, so as to display a screen, wherein a first part of the active area is visible from the front side and a second part of the active area is not visible from the front side. The one or more programs may include instructions that, when executed by the sliderable electronic device, cause the sliderable electronic device to emit light for a reference time, at least some of the second light-emitting elements within a second region within the first part positioned outside the rounded corners, while the screen is displayed within the state.

[0007] Figure 1 illustrates an example of a state of a sliderable electronic device.

[0008] Figure 2 is a chart illustrating hysteresis within a driving transistor.

[0009] Figure 3 is a simplified block diagram of an exemplary sliderable electronic device.

[0010] FIG. 4 illustrates an exemplary method of illuminating at least some of the light-emitting elements positioned outside the rounded corners of an area for display on a screen.

[0011] FIGS. 5A, 5B, and 6 illustrate exemplary methods for adaptively illuminating at least some of the light-emitting elements positioned outside the rounded corners of an area for display on a screen.

[0012] FIG. 7 illustrates an exemplary method for periodically changing the positions of at least some of the light-emitting elements outside the rounded corners of an area for display on a screen.

[0013] FIG. 8 illustrates an exemplary method for providing gradient content through a second area positioned outside the rounded corners of a first area for display on a screen.

[0014] FIG. 9 illustrates an exemplary method for adjusting the transparency of a second area positioned outside the rounded corners of a first area for display on a screen.

[0015] Figure 10 illustrates an example of a multi-foldable electronic device.

[0016] FIG. 11 is a block diagram of an electronic device within a network environment according to various embodiments.

[0017] FIG. 12 is a block diagram of a display module according to various embodiments.

[0018] Figure 1 illustrates an example of a state of a sliderable electronic device.

[0019] Referring to FIG. 1, a slideable electronic device (100) may include a housing (103) including a first housing part (101) and a second housing part (102).

[0020] The second housing part (102) can be engaged with the first housing part (101), coupled to the first housing part (101), or connected to the first housing part (101).

[0021] The second housing part (102) may be configured to slide with respect to the first housing part (101). For example, the second housing part (102) may be configured to be movable in a first direction (131) with respect to the first housing part (101) within the first state (191). For example, the second housing part (102) may be configured to be movable in a second direction (132) opposite to the first direction (131) with respect to the first housing part (101) within the second state (192). For example, the second housing part (102) may be fastened to the first housing part (101) so as to slide with respect to the first housing part (101).

[0022] A slideable electronic device (100) may include a flexible display panel (110) forming at least a portion of a front side of a housing (103) (or a slideable electronic device (100)). At least a portion of the flexible display panel (110) may be deformable. The flexible display panel (110) may be coupled to a first housing part (101) and a second housing part (102). For example, the flexible display (110) may be coupled to the first housing part (101) and the second housing part (102) such that the size of an active area (113) visible from the front side of the housing (100) changes by at least partially rolling into the first housing part (101) as the second housing part (102) slides relative to the first housing part (101). For example, within a first state (191), a first part (111) of the active area (113) may be visible from the front side, and a second part (112) of the active area (113) may be invisible from the front side. For example, within a second state (192), a first part (111) of the active area (113) may be visible from the front side, and a second part (112) of the active area (113) may be invisible from the front side. As a non-limiting example, the states of the slidable electronic device (100) may further include, in addition to the first state (191) and the second state (192), at least one third state that is an intermediate state between the first state (191) and the second state (192).For example, within the at least one third state, a first part (111) of the active area (113) may be visible from the front side, a part of a second part (112) of the active area (113) may be visible from the front side, and another part (or a remaining part) of the second part (112) of the active area (113) may be unvisible from the front side.

[0023] Within the first state (191), a screen (141) may be displayed on the flexible display panel (110). For example, the screen (141) may be displayed within a first area (121) within a first part (111). The shape of the first area (121) (or screen (141)) may be a rounded rectangle. As a non-limiting example, the shape of the first area (121) may be a rounded rectangle for a beautiful curved design. The first area (121) may include rounded corners (150) and rounded corners (151). For example, the rounded corners (150), unlike the rounded corners (151), may be adjacent to a boundary (155) between the first part (111) and the second part (112). As a non-limiting example, the rounded corners (150), unlike the rounded corners (151), may extend from the boundary (155).

[0024] Within the first state (191), the first part (111) may further include a second region (122). The second region (122) may be located outside the rounded corners (150). At least a portion of the second region (122) may contact the rounded corners (150). For example, the second region (122) may at least partially contact the rounded corners (150) outside the rounded corners (150). For example, the second region (122) may be located between the rounded corners (150) and the boundary (155). For example, the second region (122) may be defined by rounded corners (150), a boundary (155), and a portion of an edge of the first part (111) (e.g., a portion of the edge of the first part (111) parallel to the first direction (131) (or the second direction (132)) or a portion of the edge of the first part (111) perpendicular to the boundary (155)).

[0025] Within the first state (191), the second area (122) may not be an area used to provide information because it is located outside the first area (121) used for displaying the screen (141). As a non-limiting example, within the first state (191), the second area (122) may be an area that is not focused by the user, unlike the first area (121). As a non-limiting example, within the first state (191), the second area (122) may be an area that is unnoticeable to the user, unlike the first area (121). As a non-limiting example, within the first state (191), the second area (122) may be an area within the first part (111) for a beautiful curved design of the screen (141) displayed within the first area (121).

[0026] Within the first state (191), the first part (111) may further include a third region (123). The third region (123) may be located outside the rounded corners (151). The third region (123) may at least partially contact the rounded corners (151) outside the rounded corners (151).

[0027] Within the second state (192), the first part (111) and the second part (112) can be seen from the front side.

[0028] Within the second state (192), an extended screen (142) may be displayed on the flexible display panel (110). The extended screen (142) may include a part (143) corresponding to the screen (141) and a part (144) extended from the part (143). For example, the part (144) may provide content that was not provided within the first state (191). For example, the part (144) may provide content (or information) that appears within the first state (191) when the screen (141) is scrolled in the first direction (131) (or the second direction (132)).

[0029] Within the second state (192), the extended screen (142) may be displayed within an area including a first area (121) and a fifth area (125). For example, the first area (121) may be included within a first part (111) and the fifth area (125) may be included within a second part (112). The shape of the area including the first area (121) and the fifth area (125) may be a rounded rectangle. As a non-limiting example, the shape of the area including the first area (121) and the fifth area (125) may be a rounded rectangle for a beautiful curved design. The area including the first area (121) and the fifth area (125) may include rounded corners (151) and rounded corners (152).

[0030] Within the second state (192), the second part (112) may further include a fourth region (124). The fourth region (124) may be located outside the rounded corners (152). At least a portion of the fourth region (124) may be in contact with the rounded corners (152). For example, the fourth region (124) may at least partially contact the rounded corners (152) outside the rounded corners (152).

[0031] The second region (122) within the second state (192) may be an region used to provide information, unlike the second region (192) within the first state (191). As a non-limiting example, the second region (122) within the second state (192) may be an region focused on by the user, unlike the second region (122) within the first state (191). As a non-limiting example, the second region (122) within the second state (192) may be an region noticeable to the user, unlike the second region (122) within the first state (191).

[0032] For example, while the screen (141) is displayed in the first state (191), assume that, unlike the first light-emitting elements (or first sub-pixels) (e.g., first light-emitting diodes or first organic light-emitting diodes (OLEDs)) in the first region (121), current is not supplied to the second light-emitting elements (or second sub-pixels) (e.g., second light-emitting diodes or second OLEDs) in the second region (122). The fact that the current was not supplied to each of the second light-emitting elements in the first state (191) may at least temporarily cause image sticking, afterimage, or image persistence in the second state (192) changed from the first state (191). For example, the afterimage may be caused by hysteresis within the driving transistors within the second sub-pixels for providing current to each of the second light-emitting elements located within the second region (122). The hysteresis is exemplified within the description of FIG. 2.

[0033] Figure 2 is a chart illustrating hysteresis within a driving transistor.

[0034] Referring to FIG. 2, the threshold voltage of the driving transistor may be shifted when an image of a first color (e.g., black) is changed to an image of a second color (e.g., white). For example, the shifting of the threshold voltage may cause a change in the brightness provided from an organic light-emitting diode driven by the driving transistor.

[0035] For example, chart (200) represents the change. The horizontal axis of chart (200) represents the gate-source voltage (Vgs) of the driving transistor, and the vertical axis of chart (200) represents the current (or current from the drain of the driving transistor to the source of the driving transistor) (Ids) applied to each of the second light-emitting elements (e.g., each of the second OLEDs). For example, line (210) in chart (200) represents the relationship between the gate-source voltage (Vgs) and the current (Ids) for the image of the first color, and line (220) in chart (200) represents the relationship between the gate-source voltage (Vgs) and the current (Ids) for the image of the second color. As in chart (200), line (220) may be offset with respect to line (210). For example, the value (211) of the current (Ids) at line (210) when the gate-source voltage (Vgs) is at value (230) may be different from the value (221) of the current (Ids) at line (220) when the gate-source voltage (Vgs) is at value (230). For example, the difference (240) between the values ​​(211) and (221) may cause the afterimage.

[0036] Referring again to FIG. 1, since disabling the second region (122) during the first state (191) may cause an afterimage upon changing (or transitioning) from the first state (191) to the second state (192) (or at least one of the third states), the slidable electronic device (100) may perform operations to at least partially enable the second region (122) during the first state (191). The operations may be performed via at least some of the components of the slidable electronic device (100). The components are exemplified within the description of FIG. 3.

[0037] Figure 3 is a simplified block diagram of an exemplary sliderable electronic device.

[0038] Referring to FIG. 3, the slideable electronic device (100) may include a processor (301) and a display (320).

[0039] The processor (301) may include at least a portion of the processor (1120) of FIG. 11 or correspond to at least a portion of the processor (1120) of FIG. 11. The processor (301) may include a central processing unit (CPU), a graphics processing unit (GPU), and / or a display processing unit (DPU) (or a display controller). The processor (301) may be used to process information about an image to be transmitted to the display driving circuit (302). For example, the processor (301) may be used to obtain the information. For example, the processor (301) may be used to transmit the information to the display driving circuit (302). For example, the processor (301) may process the information for a video mode of the display serial interface (DSI) of the mobile industry process interface (MIPI) alliance. For example, the processor (301) can process the information for a command mode of the DSI of the MIPI Alliance. For example, the processor (301) can process the information for a hybrid video mode of the DSI of the MIPI Alliance (e.g., a video mode executed using a memory (303) within the display driver circuit (302). The processor (301) can be located within the housing (103) (not shown in FIG. 3).

[0040] For example, the processor (301) may execute operations for reducing the occurrence of the afterimage exemplified in the descriptions of FIGS. 1 and 2. The operations will be exemplified in the descriptions of FIGS. 4 to 9. As a non-limiting example, at least some of the operations of the processor (301) exemplified in the descriptions of FIGS. 4 to 9 may also be executed by the display driving circuit (302) depending on the implementation or design of the slideable electronic device (100).

[0041] The display (320) may include a display driving circuit (302) and a flexible display panel (110). The display (320) may include at least a portion of the display module (1160) of FIGS. 11 and 12, or may correspond to at least a portion of the display module (1160) of FIGS. 11 and 12. The display driving circuit (302) may be located within the housing (103) (not shown in FIG. 3).

[0042] The display driving circuit (302) may include at least a portion of the DDI (1230) of FIG. 12 or correspond to at least a portion of the DDI (1230) of FIG. 12. The display driving circuit (302) may control the flexible display panel (110) to display a screen on the flexible display panel (110). For example, the display driving circuit (302) may cause at least a portion of the light-emitting elements in the flexible display panel (110) to emit light to display the screen. For example, the display driving circuit (302) may provide or transmit signals to the flexible display panel (110) for causing at least a portion of the light-emitting elements to emit light. Within this document, the display driving circuit (302) causing at least some of the light-emitting elements to emit light may indicate that the display driving circuit (302) provides current (or power) (or voltage) to the flexible display panel (110) so that the at least some of the light-emitting elements emit light. Within this document, the display driving circuit (302) causing at least some of the light-emitting elements to emit light may indicate that the display driving circuit (302) controls the flexible display panel (110) so that the at least some of the light-emitting elements emit light.

[0043] For example, the display driver circuit (302) may execute operations for reducing the occurrence of the afterimage exemplified in the descriptions of FIGS. 1 and 2. The operations will be exemplified in the descriptions of FIGS. 4 to 9. As a non-limiting example, at least some of the operations of the display driver circuit (302) exemplified in the descriptions of FIGS. 4 to 9 may be executed by the processor (301) depending on the implementation or design of the slideable electronic device (100). For example, depending on the implementation, at least some of the operations of the processor (301) exemplified in the descriptions of FIGS. 4 to 9 may be executed by the display driver circuit (302), and at least some of the operations of the display driver circuit (302) exemplified in the descriptions of FIGS. 4 to 9 may be executed by the processor (301). Therefore, the processor (301) and the display driver circuit (302) may often be referred to as at least one control circuit (310). For example, the operations of the processor (301) to be illustrated in the description of FIGS. 4 to 9 may be referenced as operations of at least one control circuit (310). For example, the operations of the display driving circuit (302) to be illustrated in the description of FIGS. 4 to 9 may be referenced as operations of at least one control circuit (310).

[0044] For example, the display driver circuit (302) may include a memory (303) for the command mode. For example, the display driver circuit (302) may include a memory (303) for the hybrid video mode. For example, when the display driver circuit (302) includes a memory (303), the display driver circuit (302) may execute at least some of the operations illustrated in the descriptions of FIGS. 4 to 9 based on a scan of an image stored in the memory (303) (e.g., an image from the processor (301). Depending on the implementation, the display driver circuit (302) may not include a memory (303).

[0045] The flexible display panel (110) may include at least a portion of the display (1210) of FIG. 12 or correspond to at least a portion of the display (1210) of FIG. 12.

[0046] For example, components of the slideable electronic device (100) illustrated in the description of FIG. 3 (e.g., processor (301) and display (320)) may be configured to execute operations illustrated in the description of FIGS. 4 to 9.

[0047] FIG. 4 illustrates an exemplary method of illuminating at least some of the light-emitting elements positioned outside the rounded corners of an area for display on a screen.

[0048] Referring to FIG. 4, a first state (191) may represent a state of a sliderable electronic device (100) (or display (320)) in which a first part (111) of an active area (113) (not shown in FIG. 4) is visible from the front side and a second part (112) of the active area (113) is not visible from the front side. In the first state (191), the display driving circuit (302) may emit light at least some of the first light-emitting elements positioned within the first area (121) in order to display a screen (141) within the first area (121) of the first part (111).

[0049] Within the first state (191), the display driving circuit (302) can cause at least some of the second light-emitting elements within the second region (122) within the first part (111) located outside the rounded corners (150) of the first region (121) adjacent to the boundary (155) between the first part (111) and the second part (112) to emit light while the screen (141) is displayed within the first state (191).

[0050] Displaying the screen (141) within the first state (191) may include that at least some of the first light-emitting elements emit light (during the emission period). Displaying the screen (141) within the first state (191) may include that the screen (141) is maintained on the flexible display panel (110) after the at least some of the first light-emitting elements emit light. Displaying the screen (141) within the first state (191) may include executing a scan of the display driving circuit (302) to initially display the screen (141) on the flexible display panel (110) within the first state (191). Displaying the screen (141) within the first state (191) may include scanning the display driving circuit (302) to maintain the screen (141) on the flexible display panel (110) within the first state (191). However, it is not limited to this.

[0051] For example, emitting light of at least some of the second light-emitting elements within the second region (122) within the first state (191) may be performed to reduce the probability of occurrence of the afterimage with respect to the second region (122) upon a change from the first state (191) to a state in which the first part (111) is visible from the front side and at least some of the second part (112) is visible from the front side (e.g., the second state (192) (not shown in FIG. 4) or the at least one third state). As a non-limiting example, emitting light of at least some of the second light-emitting elements within the second region (122) within the first state (191) may be performed not to provide information, but rather to reduce the afterimage. For example, since the second region (122) is used for displaying an extended screen (142) (not shown in FIG. 4) within a second state (192) changed from the first state (191), the display driving circuit (302) can emit light at least some of the second light-emitting elements within the second region (122) within the first state (191). For example, emitting light at least some of the second light-emitting elements within the second region (122) within the first state (191) can be performed during a reference time. As a non-limiting example, the reference time can correspond to an emission interval (or period) defined for the display (320) (e.g., a time corresponding to 120 (Hz)(hertz)).

[0052] For example, since the second region (122) within the first state (191) is not an region used to provide information, the display driving circuit (302) can cause at least some of the second light-emitting elements within the second region (122) to emit light within the first state (191) so that the second region (122) is unnoticeable to the user.

[0053] As a non-limiting example, within the first state (191), the display driver circuit (302) may cause at least some of the second light-emitting elements within the second region (122) to emit light based on synchronization signals (e.g., a vertical synchronization signal, a horizontal synchronization signal, and / or an emission synchronization signal) used to display the screen (141) within the first region (121). As a non-limiting example, within the first state (191), the display driver circuit (302) may cause at least some of the second light-emitting elements within the second region (122) to emit light in response to timings that are distinct from timings defined by the synchronization signals.

[0054] As a non-limiting example, within the first state (191), the display driving circuit (302) may receive information about an image (400) from the processor (301). For example, the shape of the image (400) may be a rectangle, as illustrated in FIG. 4. For example, the image (400), unlike the first region (121), may not include rounded corners (e.g., rounded corners (150) and rounded corners (151)). For example, the image (400) may include a first portion (401) corresponding to the first region (121) and a second portion (402) corresponding to the second region (122). For example, the first portion (401) of the image (400) may include content provided by the screen (141). For example, the display driver circuit (302) can, within the first state (191), emit light at least some of the first light-emitting elements based on a first portion (401) of the image (400) to display the screen (141) within the first region (191). For example, the display driver circuit (302) can, while displaying the screen (141) within the first state (191), emit light at least some of the second light-emitting elements based on a second portion (402) of the image (400). For example, within the first state (191), the display driver circuit (302) can emit light at least some of the second light-emitting elements instead of masking the second portion (402) of the image (400) to display the screen (141) within the first region (191). As a non-limiting example, since the second portion (402) of the image (400) can be used for display within the second region (122) within the second state (192), emitting at least a portion of the second light-emitting elements based on the second portion (402) of the image (400) can reduce the probability of the afterimage occurring.

[0055] For example, the image (400) may further include a third portion (403) corresponding to the third region (123). For example, since the third region (123) is not an area used for displaying information despite the change from the first state (191) to the second state (192), the display driver circuit (302) may mask the third portion (403) of the image (400) to prevent third light-emitting elements located within the third region (123) from emitting light. However, the present invention is not limited thereto. For example, the display driver circuit (302) may also emit light at least a portion of the third light-emitting elements to display the screen (141) within the first region (191).

[0056] For example, at least some of the second light-emitting elements within the first state (191) may emit light based on gamma correction for the second portion (402) of the image (400). For example, the extent (degree, or level) of gamma correction performed for the first portion (401) of the image (400) may be different from the extent of gamma correction performed for the second portion (402) of the image (400). For example, the gamma correction for the second portion (402) of the image (400) may be performed by the processor (301) before the processor (301) transmits the information (e.g., information about the image (400)) to the display driving circuit (302). For example, the gamma correction for the second part (402) of the image (400) may be performed by the display driving circuit (302) after the display driving circuit (302) receives the information from the processor (301).

[0057] For example, the display driver circuit (302) can cause at least a portion of the second light-emitting elements to emit light within the first state (191) to provide gradient content having slightly different grayscale values ​​(or pixel values) (or gray levels) (or grayscale levels) (or brightness values) (or brightness levels) (or brightness values) (or brightness levels) (or brightness levels) in at least a portion of the second region (122) from content of the second portion (402) of the image (400). For example, the gradient content may be obtained by the processor (301) or may be obtained by the display driver circuit (302). For example, the gradient content provided within the second region (122) within the first state (191) can be obtained based on applying a gradient effect to the second part (402) of the image (400). The gradient effect will be exemplified within the description of FIG. 8.

[0058] For example, at least some of the second light-emitting elements within the first state (191) may emit light based on an adjustment of the transparency of the second portion (402) of the image (400). For example, the adjustment of the transparency may be performed by the processor (301) before the processor (301) transmits the information (e.g., the information about the image (400)) to the display driver circuit (302). For example, the adjustment of the transparency may be performed by the display driver circuit (302) after the display driver circuit (302) receives the information.

[0059] For example, the display driving circuit (302) can periodically change the positions of at least some of the second light-emitting elements that emit light while the screen (141) is displayed in the first state (191). The periodic change in the positions will be exemplified in the description of FIG. 7.

[0060] For example, the display driving circuit (302) may cause at least some of the second light-emitting elements to emit light while the screen (141) is displayed in the first state (191) so as to change the overall transparency of the content provided within the second region (122). This change in transparency will be exemplified within the description of FIG. 9.

[0061] For example, the display driver circuit (302) can adaptively change the technique for emitting at least a portion of the second light-emitting elements based on the length of time that the screen (141) is displayed within the first state (191). For example, the display driver circuit (302) can adaptively change the technique for emitting at least a portion of the second light-emitting elements based on the length of time that the first state (191) is maintained. For example, the display driver circuit (302) can adaptively change the technique for emitting at least a portion of the second light-emitting elements based on a user input that causes the first state (191) to change to another state (e.g., the second state (192) or at least one third state)) in which the first part (111) is visible from the front side and at least a portion of the second part (112) is visible from the front side. The adaptive changes in the technique are exemplified in the descriptions of FIGS. 5A, 5B, and 6.

[0062] FIGS. 5A, 5B, and 6 illustrate exemplary methods for adaptively illuminating at least some of the light-emitting elements positioned outside the rounded corners of an area for display on a screen.

[0063] Referring to FIG. 5A, the display driving circuit (302) can adaptively change the technique for emitting light of at least some of the second light-emitting elements based on the length of time for which the first state (191) is maintained.

[0064] For example, the display driving circuit (302) can change the number of at least some of the second light-emitting elements that emit light within the first state (191) based on the length of time that the first state (191) is maintained. For example, the display driving circuit (302) can increase the number of at least some of the second light-emitting elements that emit light within the first state (191) as the length increases. The number of at least some of the second light-emitting elements can be increased until a reference number is reached. For example, the reference number can be set within the sliderable electronic device (100) so that a user does not notice that at least some of the second light-emitting elements emit light.

[0065] For example, the display driving circuit (302) can change the transparency of the content provided within the second region (122) based on the length of time during which the first state (191) is maintained, by emitting light at least some of the second light-emitting elements. For example, the display driving circuit (302) can increase the transparency of the content provided within the second region (122) as the length increases, for example, the transparency can increase until it reaches a reference transparency. For example, the reference transparency can be set within the sliderable electronic device (100) so that a user does not notice that the at least some of the second light-emitting elements emit light.

[0066] For example, the display driving circuit (302) can change the area over which the gradation effect is applied to the second region (122) by emitting light at least some of the second light-emitting elements based on the length of time during which the first state (191) is maintained. For example, the display driving circuit (302) can expand the area as the length increases.

[0067] For example, the display driving circuit (302) can change the brightness values ​​(or grayscale values) used to apply the gradient effect based on the length of time during which the first state (191) is maintained. For example, the display driving circuit (302) can increase the brightness values ​​of at least a portion of the second area (122) to which the gradient effect is applied as the length increases.

[0068] For example, the display driving circuit (302) can change the length of a cycle for changing the positions of at least some of the second light-emitting elements that emit light while the screen (141) is displayed in the first state (191) based on the length of the time during which the first state (191) is maintained. For example, the display driving circuit (302) can decrease the length of the cycle as the length increases. For example, the length of the cycle can be decreased until it reaches a reference length. For example, the reference length can be set within the sliderable electronic device (100) so that a user does not notice that at least some of the second light-emitting elements emit light.

[0069] For example, the display driving circuit (302) can change the length of a cycle for changing the transparency of the content provided within the second region (122) by emitting light at least some of the second light-emitting elements based on the length of time during which the first state (191) is maintained. For example, the display driving circuit (302) can decrease the length of the cycle as the length increases. For example, the length of the cycle can be decreased until it reaches a reference length. For example, the reference length can be set within the sliderable electronic device (100) so that a user does not notice that the at least some of the second light-emitting elements are emitting light.

[0070] For example, the first state (191) may start at timing (501). For example, since the display driver circuit (302) adaptively changes the technique of emitting at least a portion of the second light-emitting elements based on the length of time that the first state (191) is maintained, the technique of emitting at least a portion of the second light-emitting elements at timing (503) after time (502) from timing (501) may be at least partially different from the technique of emitting at least a portion of the second light-emitting elements at timing (505) after time (504) from timing (501).

[0071] For example, the number of at least some of the second light-emitting elements that emit light at timing (503) may be less than the number of at least some of the second light-emitting elements that emit light at timing (505). For example, the transparency (e.g., 30 (%)) of content provided in accordance with the at least some of the second light-emitting elements that emit light at timing (503) may be less than the transparency (e.g., 70 (%)) of content provided in accordance with the at least some of the second light-emitting elements that emit light at timing (505).

[0072] For example, the area in which the gradient effect is applied to the second area (122) by emitting at least some of the second light-emitting elements within the second area (122) at timing (503) may be narrower than the area in which the gradient effect is applied to the second area (122) by emitting at least some of the second light-emitting elements within the second area (122) at timing (505).

[0073] For example, a second region (122) having a gradient effect applied by emitting at least some of the second light-emitting elements within the second region (122) at timing (503) may be darker than a second region (122) having a gradient effect applied by emitting at least some of the second light-emitting elements within the second region (122) at timing (505).

[0074] For example, the length of the cycle for changing the positions of at least some of the second light-emitting elements that emit light during a time period (506) from timing (503) may be longer than the length of the cycle for changing the positions of at least some of the second light-emitting elements that emit light during a time period (506) from timing (505).

[0075] For example, the length of the cycle for changing the transparency of the content provided within the second region (122) by at least some of the second light-emitting elements that emit light during a time (506) from timing (503) may be longer than the length of the cycle for changing the transparency of the content provided within the second region (122) by at least some of the second light-emitting elements that emit light during a time (506) from timing (505).

[0076] Referring to FIG. 5b, the display driving circuit (302) can adaptively change the technique of emitting light of at least some of the second light-emitting elements based on the length of time that the screen (141) is displayed within the first state (191).

[0077] For example, the display driving circuit (302) can change the number of at least some of the second light-emitting elements that emit light within the first state (191) based on the length of time that the screen (141) is displayed within the first state (191). For example, the display driving circuit (302) can increase the number of at least some of the second light-emitting elements that emit light within the first state (191) as the length increases. The number of at least some of the second light-emitting elements can be increased until a reference number is reached. For example, the reference number can be set within the sliderable electronic device (100) so that a user does not notice that at least some of the second light-emitting elements emit light.

[0078] For example, the display driving circuit (302) can change the transparency of the content provided within the second region (122) based on the length of time that the screen (141) is displayed within the first state (191) by emitting at least a portion of the second light-emitting elements. For example, the display driving circuit (302) can increase the transparency of the content provided within the second region (122) as the length increases, for example, the transparency can increase until it reaches a reference transparency. For example, the reference transparency can be set within the sliderable electronic device (100) such that a user does not notice that at least a portion of the second light-emitting elements are emitting.

[0079] For example, the display driving circuit (302) can change the area over which the gradation effect is applied to the second region (122) by emitting light at least some of the second light-emitting elements based on the length of time during which the screen (141) is displayed within the first state (191). For example, the display driving circuit (302) can expand the area as the length increases.

[0080] For example, the display driving circuit (302) can change the brightness values ​​(or grayscale values) used to apply the gradient effect based on the length of time that the screen (141) is displayed within the first state (191). For example, the display driving circuit (302) can increase the brightness values ​​of at least a portion of the second area (122) to which the gradient effect is applied as the length increases.

[0081] For example, the display driving circuit (302) can change the length of a cycle for changing the positions of at least a portion of the second light-emitting elements that emit light while the screen (141) is displayed in the first state (191) based on the length of time that the screen (141) is displayed in the first state (191). For example, the display driving circuit (302) can decrease the length of the cycle as the length increases. For example, the length of the cycle can be decreased until it reaches a reference length. For example, the reference length can be set within the sliderable electronic device (100) so that a user does not notice that at least a portion of the second light-emitting elements emit light.

[0082] For example, the display driving circuit (302) can change the length of a cycle for changing the transparency (or overall transparency) of the content provided within the second region (122) by emitting light of at least a portion of the second light-emitting elements based on the length of time that the screen (141) is displayed within the first state (191). For example, the display driving circuit (302) can decrease the length of the cycle as the length increases. For example, the length of the cycle can be decreased until it reaches a reference length. For example, the reference length can be set within the sliderable electronic device (100) so that a user does not notice that at least a portion of the second light-emitting elements are emitting light.

[0083] For example, the initial display of the screen (141) within the first state (191) may begin at timing (511). For example, since the display driving circuit (302) adaptively changes the technique of emitting at least a portion of the second light-emitting elements based on the length of time that the screen (141) is displayed within the first state (191), the technique of emitting at least a portion of the second light-emitting elements at timing (513) after time (512) from timing (511) may be at least partially different from the technique of emitting at least a portion of the second light-emitting elements at timing (515) after time (514) from timing (511).

[0084] For example, the number of at least some of the second light-emitting elements that emit light at timing (513) may be less than the number of at least some of the second light-emitting elements that emit light at timing (515). For example, the transparency (e.g., 30 (%)) of the content provided in accordance with the at least some of the second light-emitting elements that emit light at timing (513) may be less than the transparency (e.g., 70 (%)) of the content provided in accordance with the at least some of the second light-emitting elements that emit light at timing (515).

[0085] For example, the area in which the gradient effect is applied to the second area (122) by emitting at least some of the second light-emitting elements within the second area (122) at timing (513) may be narrower than the area in which the gradient effect is applied to the second area (122) by emitting at least some of the second light-emitting elements within the second area (122) at timing (515).

[0086] For example, a second region (122) having a gradient effect applied by emitting at least some of the second light-emitting elements within the second region (122) at timing (513) may be darker than a second region (122) having a gradient effect applied by emitting at least some of the second light-emitting elements within the second region (122) at timing (515).

[0087] For example, the length of the cycle for changing the positions of at least some of the second light-emitting elements that emit light during a time period (516) from timing (513) may be longer than the length of the cycle for changing the positions of at least some of the second light-emitting elements that emit light during a time period (516) from timing (515).

[0088] For example, the length of the cycle for changing the transparency of the content provided within the second region (122) by at least some of the second light-emitting elements that emit light during a time (516) from timing (513) may be longer than the length of the cycle for changing the transparency of the content provided within the second region (122) by at least some of the second light-emitting elements that emit light during a time (516) from timing (515).

[0089] The technique of emitting at least some of the second light-emitting elements can be adaptively changed in response to user input.

[0090] Referring to FIG. 6, within a first state (191), a user input (600) may be received at a timing (601) with respect to the slidable electronic device (100). The user input (600) may cause the first state (191) to change to a state in which at least a portion of the first part (111) and the second part (112) are visible from the front side (e.g., the second state (192) or the at least one third state). For example, the user input (600) may include pressing a physical button that is used for extending the flexible display panel (110), as illustrated in FIG. 6, and protrudes through a portion of the housing (103). For example, the user input (600) may include contacting an input means (e.g., a finger) on the physical button. For example, the user input (600) may include changing the state of the slidable electronic device (100) to a grip state. For example, the user input (600) may include receiving a signal requesting extension of the flexible display panel (110) from an external electronic device (e.g., a device associated with the sliderable electronic device (100)). For example, the signal may be transmitted from the external electronic device to the sliderable electronic device (100) based on a user input induced on the external electronic device.

[0091] For example, the processor (301) may detect, identify, or receive a user input (600). For example, the processor (301) may transmit a control signal (603) (or control command (603)) to the display driving circuit (302) at a timing (602) in response to the user input (600).

[0092] For example, a change from a first state (191) to a state in which at least a portion of the first part (111) and the second part (112) is visible from the front side (e.g., the second state (192) or the at least one third state) may be initiated at timing (604). As a non-limiting example, a control signal (603) may be transmitted from the processor (301) to the display driver circuit (302) before the change is initiated (or before timing (604)).

[0093] For example, the display driver circuit (302) can cause the at least some of the second light-emitting elements to emit light within a time interval (605) between timing (602) (or the timing at which the control signal (603) is received by the display driver circuit (302)) and timing (604) based on a second technique different from the first technique for emitting light within a time interval (606) prior to timing (602). For example, the display driver circuit (302) can change the technique for emitting light from the first technique to the second technique in response to the control signal (603).

[0094] For example, the number of at least some of the second light-emitting elements that emit light during the time period (605) may be greater than the number of at least some of the second light-emitting elements that emit light during the time period (606). For example, the transparency (or overall transparency) of content provided within the second region (122) by emitting at least some of the second light-emitting elements during the time period (605) may be greater than the transparency of content provided within the second region (122) by emitting at least some of the second light-emitting elements during the time period (606). For example, an area over which a gradation effect is applied to the second region (122) by emitting at least some of the second light-emitting elements during the time period (605) may be larger than an area over which a gradation effect is applied to the second region (122) by emitting at least some of the second light-emitting elements during the time period (606). For example, a second region (122) having a gradient effect applied by emitting at least some of the second light-emitting elements during a time interval (605) may be brighter than a second region (122) having a gradient effect applied by emitting at least some of the second light-emitting elements during a time interval (606). For example, a length of a cycle for changing the positions of at least some of the second light-emitting elements that emit light during a time interval (605) may be shorter than a length of a cycle for changing the positions of at least some of the second light-emitting elements that emit light during a time interval (606).The length of the cycle for changing the transparency of the content provided within the second region (122) by at least some of the second light-emitting elements that emit light during the time interval (605) may be shorter than the length of the cycle for changing the transparency of the content provided within the second region (122) by at least some of the second light-emitting elements that emit light during the time interval (606).

[0095] As a non-limiting example, the processor (301) may control or cause the display drive circuit (302) to change the refresh rate of the screen displayed on the flexible display panel (110) to a second refresh rate (e.g., 120 (Hz)) higher than the first refresh rate (e.g., 60 (Hz)) used within the first state (191) during a time interval (608) between timings (604) and (607). For example, timing (607) may be a timing at which at least a portion of the first part (111) and the second part (112) from the first state (191) completes (or ends) a change to a state in which the first part (111) and the second part (112) are visible from the front side (e.g., the second state (192) or the at least one third state).

[0096] For example, the processor (301) may control or cause the display driving circuit (302) to reduce the overall brightness of the screen displayed on the flexible display panel (110) during a time period (608).

[0097] For example, the processor (301) may control or cause the display driving circuit (302) to display content to be displayed within the second region (122) within the second state (192) during the time interval (608).

[0098] For example, changing the first refresh rate to the second refresh rate and displaying the content within the second region (122) may be performed during a time interval (608) to reduce the probability that the afterimage will occur for the second region (122) within the second state (192). For example, decreasing the overall brightness may be performed during a time interval (608) to reduce the probability that the afterimage caused for the second region (122) while the first state (191) is changed to the second state (192) will be recognized by the user.

[0099] Referring again to FIG. 4, as described above, the display driving circuit (302) can change the positions of at least some of the second light-emitting elements that emit light while the screen (141) is displayed in the first state (191). This change in position is exemplified in the description of FIG. 7.

[0100] FIG. 7 illustrates an exemplary method for periodically changing the positions of at least some of the light-emitting elements outside the rounded corners of an area for display on a screen.

[0101] Referring to FIG. 7, the second light-emitting elements positioned within the second region (122) may be classified into a plurality of sets. For example, the plurality of sets may be used to change the positions of at least some of the second light-emitting elements that emit light while the screen (141) is displayed within the first state (191).

[0102] As a non-limiting example, a set (700) among the plurality of sets may include a light-emitting element (711), a light-emitting element (712), a light-emitting element (713), and a light-emitting element (714), which are part of the second light-emitting elements. The light-emitting element (711), the light-emitting element (712), the light-emitting element (713), and the light-emitting element (714) may sequentially emit light according to a setting of the sliderable electronic device (100) (or a setting of the display (320)) while the screen (141) is displayed in the first state (191). For example, the display driving circuit (302) may control the flexible display panel (110) to emit light among the light-emitting elements (711), the light-emitting element (712), the light-emitting element (713), and the light-emitting element (714) within the set (700) for the reference time, such as in the state (701) of the set (700). For example, the display driving circuit (302) can control the flexible display panel (110) to change the state (701) of the set (700) to a state (702) of the set (700) in which the light-emitting element (712) among the light-emitting elements (711), (712), (713), and (714) in the set (700) emits light for the reference time. For example, the display driving circuit (302) can control the flexible display panel (110) to change the state (702) of the set (700) to a state (703) of the set (700) in which the light-emitting element (713) among the light-emitting elements (711), (712), (713), and (714) in the set (700) emits light for the reference time.For example, the display driving circuit (302) can control the flexible display panel (110) to change the state (703) of the set (700) to the state (704) of the set (700) in which the light-emitting element (714) among the light-emitting elements (711), (712), (713), and (714) in the set (700) emits light for the reference time. For example, the display driving circuit (302) can control the flexible display panel (110) to change the state (704) of the set (700) to the state (701) of the set (700). For example, the display driving circuit (302) can control the flexible display panel (110) to repeatedly execute the change of the state of the set (700) while the screen (141) is displayed in the first state (191).

[0103] Although not illustrated in FIG. 7, emitting light of each of the light-emitting elements (711), (712), (713), and (714) can be performed based on the second portion (402) of the image (400) of FIG. 4. For example, emitting light of each of the light-emitting elements (711), (712), (713), and (714) can be performed based on partially adjusting the transparency of the second portion (402) of the image (400).

[0104] Although not shown in FIG. 7, the display driving circuit (302) can control the flexible display panel (110) so that the state of some of the plurality of sets other than the set (700) changes in a manner identical to or similar to the change in the state of the set (700).

[0105] The second light-emitting elements positioned within the second region (122) may be classified into a plurality of sets in various ways. For example, the plurality of sets may be classified based on the distance from each of the rounded corners (150). For example, a first set of the plurality of sets may include a first portion of the second light-emitting elements whose distance from each of the rounded corners (150) is within a first range, and a second set of the plurality of sets may include a second portion of the second light-emitting elements whose distance from each of the rounded corners (150) is within a second range. The second range may not overlap with the first range.

[0106] As described above, the display driving circuit (302) can reduce the probability of occurrence of the afterimage by moving at least a portion of the second light-emitting elements that emit light while the screen (141) is displayed in the first state (191). For example, the display driving circuit (302) can move at least a portion of the second light-emitting elements that emit light while the screen (141) is displayed in the first state (191) so that the emission of at least a portion of the second light-emitting elements is not noticed by the user.

[0107] Referring again to FIG. 4, as described above, the display driving circuit (302) can provide a gradient effect within at least a portion of the second region (122) by utilizing at least a portion of the second light-emitting elements that emit light while the screen (141) is displayed within the first state (191). The gradient effect is exemplified within the description of FIG. 8.

[0108] FIG. 8 illustrates an exemplary method for providing gradient content through a second area positioned outside the rounded corners of a first area for display on a screen.

[0109] Referring to FIG. 8, the display driving circuit (302) may cause at least some of the second light-emitting elements to emit light while the screen (141) is displayed in the first state (191) so as to provide gradient content having slightly different grayscale values ​​in the content of the second part (402) of the image (400) (not shown in FIG. 9) received from the processor (301) within the second area (122). For example, the display driving circuit (302) may cause at least some of the second light-emitting elements to emit light while the screen (141) is displayed in the first state (191) so as to provide at least some of the second area (122) having a gradient effect (or gradient effect). For example, at least some of the second light-emitting elements may emit light during the reference time.

[0110] For example, as in state (800), at least a portion of the second region (122) may have a gradient effect that gradually becomes brighter as it approaches the rounded corners (150), as at least a portion of the second light-emitting elements emit light.

[0111] For example, the gradient effect may be provided based on gamma correction for a second portion (402) of the image (400) (not shown in FIG. 4) and / or adjustment of transparency for a second portion (402) of the image (400).

[0112] As a non-limiting example, the area of ​​at least a portion of the second region (122) having the gradient effect may be changed based on the time the first state (191) is maintained, the time the screen (141) is maintained, and / or the receipt of a user input that causes the first state (191) to change to another state.

[0113] As a non-limiting example, but not shown in FIG. 8, at least another portion (or a remaining portion) of the second region (122) may not have a gradient effect, unlike at least a portion of the second region (122).

[0114] Information for providing the gradient content exemplified in the description of FIG. 8 may be stored in the memory (303) or in another memory (e.g., auxiliary memory) within the display driving circuit (302). For example, the display driving circuit (302) may provide the gradient content superimposed on the second part (402) of the image (400) (or the gradient content overlaid on the second part (402) of the image (400)) based on the information.

[0115] Referring again to FIG. 4, as described above, the display driving circuit (302) can cause at least some of the second light-emitting elements to emit light such that the transparency of the second region (122) is adjusted overall while the screen (141) is displayed within the first state (191). This overall adjustment of the transparency of the second region (122) is exemplified within the description of FIG. 9.

[0116] FIG. 9 illustrates an exemplary method for adjusting the transparency of a second area positioned outside the rounded corners of a first area for display on a screen.

[0117] Referring to FIG. 9, the display driving circuit (302) can cause at least some of the second light-emitting elements to emit light so as to adjust the transparency of the second region (122) as a whole while the screen (141) is displayed within the first state (191). For example, the display driving circuit (302) can cause at least some of the second light-emitting elements to emit light during the reference time so that the second region (122) has a first transparency (e.g., 10 (%)), such as in state (901). For example, the display driving circuit (302) can change the state (901) to a state (903) in which the second region (122) has a second transparency (e.g., 40 (%)), while the screen (141) is displayed within the first state (191). For example, the display driving circuit (302) can change the state (903) to the state (905) in which the second region (122) has a third transparency (e.g., 70 (%)) while the screen (141) is displayed within the first state (191). For example, the display driving circuit (302) can change the state (905) to the state (901) while the screen (141) is displayed within the first state (191). For example, the display driving circuit (302) can control the flexible display panel (110) to repeatedly execute the change of the state of the second region (122) while the screen (141) is displayed within the first state (191).

[0118] As a non-limiting example, the cycle of change of the states of the second region (122) represented by states (901), (903), and (905) may be changed based on the time the first state (191) is maintained, the time the screen (141) is maintained, and / or the receipt of user input that causes the first state (191) to change to another state.

[0119] As a non-limiting example, changing the overall transparency of the second region (122) may be performed based on a second portion (402) of the image (400) (not shown in FIG. 9).

[0120] Information for providing one or more of the states (e.g., state (901), state (903), and / or state (905)) illustrated in the description of FIG. 9 may be stored in the memory (303) or in another memory (e.g., auxiliary memory) within the display driver circuit (302). For example, the display driver circuit (302) may provide one or more of the states based on the information.

[0121] The operations of the slideable electronic device (100) exemplified above may also be performed within a multi-foldable electronic device. The multi-foldable electronic device is exemplified within the description of FIG. 10.

[0122] Figure 10 illustrates an example of a multi-foldable electronic device.

[0123] Referring to FIG. 10, the multi-foldable electronic device (1000) may include a processor (301) (not shown in FIG. 10) and a display (320) (not shown in FIG. 10), like the electronic device (100).

[0124] A multi-foldable electronic device (1000) may include a housing (1004) including a first housing part (1001), a second housing part (1002), and a third housing part (1003).

[0125] The second housing part (1002) may be fastened to each of the first housing part (1001) and the third housing part (1003), coupled to each of the first housing part (1001) and the third housing part (1003), or connected to each of the first housing part (1001) and the third housing part (1003).

[0126] The second housing part (1002) may be configured to rotate relative to the first housing part (1001). For example, the second housing part (1002) may be fastened to the first housing part (1001) so as to rotate relative to the first housing part (1001).

[0127] The third housing part (1003) can be fastened to the second housing part (1002), coupled to the second housing part (1002), or connected to the second housing part (1002).

[0128] The third housing part (1003) may be configured to rotate relative to the second housing part (1002). For example, the third housing part (1003) may be fastened to the second housing part (1002) so as to rotate relative to the second housing part (1002).

[0129] A multi-foldable electronic device (1000) may include a flexible display panel (110) forming at least a portion of a front side of a housing (1004). At least a portion of the flexible display panel (110) may be deformable. For example, the flexible display panel (110) may be coupled to a first housing part (1001), a second housing part (1002), and a third housing part (1003) such that the size of an active area (1013) viewable from the front side changes as the second housing part (1002) rotates relative to the first housing part (1001). For example, the flexible display panel (110) can be coupled to the first housing part (1001), the second housing part (1002), and the third housing part (1003) such that the size of the active area (1013) viewable from the front side changes as the third housing part (1003) rotates relative to the second housing part (1002). For example, in a first state (1091), a first part (1011) of the active area (1013) can be viewable from the front side, and a second part (1012) of the active area (1013) can be unviewable from the front side. For example, in a first state (1091), a second part (1012) of the active area (1013) can be viewable from the rear side of the housing (1004). For example, within the second state (1092), the first part (1011) of the active area (1013) and the second part (1012) of the active area (1013) may be visible from the front side. As a non-limiting example, the states of the multi-foldable electronic device (1000) may further include, in addition to the first state (1091) and the second state (1092), a third state in which the first part (1011) of the active area (1013) substantially faces the second part (1012) of the active area (1013).

[0130] Within the first state (1091), a screen (1041) may be displayed on the flexible display panel (110). For example, the screen (1041) may be displayed within a first area (1021) within a first part (111). The shape of the first area (1021) (or screen (1041)) may be a rounded rectangle. As a non-limiting example, the shape of the first area (1021) may be a rounded rectangle for a beautiful curved design. The first area (1021) may include rounded corners (1050). For example, the rounded corners (150) may be adjacent to a boundary (1055) between the first part (1011) and the second part (1012). As a non-limiting example, rounded corners (1050) may extend from a boundary (1055).

[0131] Within the first state (1091), the first part (1011) may further include a second region (1022). The second region (1022) may be located outside the rounded corners (1050). At least a portion of the second region (1022) may abut the rounded corners (1050). For example, the second region (1022) may at least partially abut the rounded corners (1050) outside the rounded corners (1050). For example, the second region (1022) may be located between the rounded corners (1050) and the boundary (1055). For example, the second region (1022) may be defined by the rounded corners (1050), the boundary (1055), and a portion of an edge of the first part (1011).

[0132] Within the first state (1091), the second region (1022) may not be an region used to provide information because it is located outside the first region (1021) used for displaying the screen (1041). As a non-limiting example, within the first state (1091), the second region (1022) may be an region that is not focused by the user, unlike the first region (1021). As a non-limiting example, within the first state (1091), the second region (1022) may be an region that is unnoticeable to the user, unlike the first region (1021). As a non-limiting example, within the first state (1091), the second area (1022) may be an area within the first part (1011) for a beautiful curved design of the screen (1041) displayed within the first area (1021).

[0133] Within the second state (1092), the first part (1011) and the second part (1012) may be visible from the front side.

[0134] Within the second state (1092), an extended screen (1042) may be displayed on the flexible display panel (110). The extended screen (1042) may include a part (1043) corresponding to the screen (1041) and a part (1044) extended from the part (1043). For example, the part (1044) may provide content that was not provided within the first state (1091). For example, the extended part (1044) may provide content (or information) that appears within the first state (1091) when the screen (1041) is scrolled.

[0135] Within the second state (1092), the shape of the extended screen (1042) may be a rounded rectangle. The second area (1022) within the second state (1092), unlike the second area (1092) within the first state (1091), may be an area used to provide information. As a non-limiting example, the second area (1022) within the second state (1092), unlike the second area (1022) within the first state (1091), may be an area focused on by the user. As a non-limiting example, the second area (1022) within the second state (1092), unlike the second area (1022) within the first state (1091), may be an area that is noticeable to the user. For example, in the second state (1092) changed from the first state (1091), the afterimage illustrated in the description of FIG. 2 may be caused.

[0136] For example, since deactivating the second region (1022) during the first state (1091) may cause an afterimage as the change from the first state (1091) to the second state (1092) occurs, the multi-foldable electronic device (1000) may perform operations to at least partially activate the second region (1022) during the first state (1091). For example, the operations of the display driving circuit (302) exemplified in the descriptions of FIGS. 3 to 9 and the operations of the processor (301) exemplified in the descriptions of FIGS. 3 to 9 may be caused or executed within the multi-foldable electronic device (1000).

[0137] Although FIG. 10 illustrates a multi-foldable electronic device (1000) (e.g., a Z-type multi-foldable electronic device) in which the second part (1012) contacts the rear side of the second housing part (1002), this is merely exemplary. The descriptions of FIGS. 3 to 9 can be applied to a G-type multi-foldable electronic device. For example, a first part of the active area of ​​the flexible display panel (110) forming at least a portion of the front side of the second housing part (1002) can face a second part of the active area of ​​the flexible display panel (110) forming at least a portion of the front side of the third housing part (1003). In this case, an area such as the second area (1022) can be included within a third part of the active area of ​​the flexible display panel (110) forming at least a portion of the front side of the first housing part (1001). For example, while the first part and the second part are not visible and the third part is visible, the operations of the display driving circuit (302) exemplified in the description of FIGS. 3 to 9 and the operations of the processor (301) exemplified in the description of FIGS. 3 to 9 may be caused or executed within the G-type multi-foldable electronic device.

[0138] The operations of the slideable electronic device (100) and the operations of the multi-foldable electronic device (1000) exemplified above can be executed by the components of the electronic device (1101) exemplified in the description of FIGS. 11 and 12.

[0139] FIG. 11 is a block diagram of an electronic device (1101) within a network environment (1100) according to various embodiments. Referring to FIG. 11, in the network environment (1100), the electronic device (1101) may communicate with the electronic device (1102) via a first network (1198) (e.g., a short-range wireless communication network), or may communicate with at least one of the electronic device (1104) or the server (1108) via a second network (1199) (e.g., a long-range wireless communication network). In one embodiment, the electronic device (1101) may communicate with the electronic device (1104) via the server (1108). According to one embodiment, the electronic device (1101) may include a processor (1120), a memory (1130), an input module (1150), an audio output module (1155), a display module (1160), an audio module (1170), a sensor module (1176), an interface (1177), a connection terminal (1178), a haptic module (1179), a camera module (1180), a power management module (1188), a battery (1189), a communication module (1190), a subscriber identification module (1196), or an antenna module (1197). In some embodiments, the electronic device (1101) may omit at least one of these components (e.g., the connection terminal (1178)), or may have one or more other components added. In some embodiments, some of these components (e.g., sensor module (1176), camera module (1180), or antenna module (1197)) may be integrated into a single component (e.g., display module (1160)).

[0140] The processor (1120) may, for example, execute software (e.g., a program (1140)) to control at least one other component (e.g., a hardware or software component) of the electronic device (1101) connected to the processor (1120) and perform various data processing or operations. According to one embodiment, as at least a part of the data processing or operations, the processor (1120) may store commands or data received from other components (e.g., a sensor module (1176) or a communication module (1190)) in a volatile memory (1132), process the commands or data stored in the volatile memory (1132), and store result data in a non-volatile memory (1134). According to one embodiment, the processor (1120) may include a main processor (1121) (e.g., a central processing unit or an application processor) or an auxiliary processor (1123) (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 (1121). For example, when the electronic device (1101) includes the main processor (1121) and the auxiliary processor (1123), the auxiliary processor (1123) may be configured to use less power than the main processor (1121) or to be specialized for a given function. The auxiliary processor (1123) may be implemented separately from the main processor (1121) or as a part thereof.

[0141] The auxiliary processor (1123) may control at least a portion of functions or states associated with at least one component (e.g., a display module (1160), a sensor module (1176), or a communication module (1190)) of the electronic device (1101), for example, on behalf of the main processor (1121) while the main processor (1121) is in an inactive (e.g., sleep) state, or together with the main processor (1121) while the main processor (1121) is in an active (e.g., application execution) state. In one embodiment, the auxiliary processor (1123) (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 (1180) or a communication module (1190)). In one embodiment, the auxiliary processor (1123) (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 (1101) itself where the artificial intelligence model is executed, or can be performed through a separate server (e.g., server (1108)). 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.

[0142] The memory (1130) can store various data used by at least one component (e.g., the processor (1120) or the sensor module (1176)) of the electronic device (1101). The data can include, for example, software (e.g., the program (1140)) and input data or output data for commands related thereto. The memory (1130) can include a volatile memory (1132) or a non-volatile memory (1134).

[0143] The program (1140) may be stored as software in memory (1130) and may include, for example, an operating system (1142), middleware (1144), or an application (1146).

[0144] The input module (1150) can receive commands or data to be used in a component of the electronic device (1101) (e.g., a processor (1120)) from an external source (e.g., a user) of the electronic device (1101). The input module (1150) 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).

[0145] The audio output module (1155) can output audio signals to the outside of the electronic device (1101). The audio output module (1155) 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.

[0146] The display module (1160) can visually provide information to an external party (e.g., a user) of the electronic device (1101). The display module (1160) 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 (1160) 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.

[0147] The audio module (1170) can convert sound into an electrical signal, or vice versa, convert an electrical signal into sound. According to one embodiment, the audio module (1170) can acquire sound through the input module (1150), output sound through the sound output module (1155), or an external electronic device (e.g., electronic device (1102)) (e.g., speaker or headphone) directly or wirelessly connected to the electronic device (1101).

[0148] The sensor module (1176) can detect the operating status (e.g., power or temperature) of the electronic device (1101) 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 (1176) 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.

[0149] The interface (1177) may support one or more designated protocols that may be used to directly or wirelessly connect the electronic device (1101) with an external electronic device (e.g., the electronic device (1102)). In one embodiment, the interface (1177) may include, for example, a high definition multimedia interface (HDMI), a universal serial bus (USB) interface, an SD card interface, or an audio interface.

[0150] The connection terminal (1178) may include a connector through which the electronic device (1101) may be physically connected to an external electronic device (e.g., the electronic device (1102)). In one embodiment, the connection terminal (1178) may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0151] The haptic module (1179) 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 (1179) may include, for example, a motor, a piezoelectric element, or an electrical stimulation device.

[0152] The camera module (1180) can capture still images and videos. In one embodiment, the camera module (1180) may include one or more lenses, image sensors, image signal processors, or flashes.

[0153] The power management module (1188) can manage the power supplied to the electronic device (1101). According to one embodiment, the power management module (1188) can be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0154] A battery (1189) may power at least one component of the electronic device (1101). In one embodiment, the battery (1189) may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0155] The communication module (1190) may support the establishment of a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device (1101) and an external electronic device (e.g., electronic device (1102), electronic device (1104), or server (1108)), and the performance of communication through the established communication channel. The communication module (1190) may operate independently from the processor (1120) (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 (1190) may include a wireless communication module (1192) (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 (1194) (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 (1104) via a first network (1198) (e.g., a short-range communication network such as Bluetooth, wireless fidelity (WiFi) direct, or infrared data association (IrDA)) or a second network (1199) (e.g., a long-range communication network such as a legacy cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or WAN)). These various types of communication modules may be integrated into a single component (e.g., a single chip) or implemented as multiple separate components (e.g., multiple chips). The wireless communication module (1192) may use subscriber information (e.g., an international mobile subscriber identity (IMSI)) stored in the subscriber identification module (1196) to verify or authenticate the electronic device (1101) within a communication network such as the first network (1198) or the second network (1199).

[0156] The wireless communication module (1192) 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 (URLLC (ultra-reliable and low-latency communications)). The wireless communication module (1192) can support, for example, a high-frequency band (e.g., mmWave band) to achieve a high data transmission rate. The wireless communication module (1192) may support various technologies for securing performance in a high-frequency band, such as beamforming, massive multiple-input and multiple-output (MIMO), full dimensional MIMO (FD-MIMO), array antenna, analog beam-forming, or large scale antenna. The wireless communication module (1192) may support various requirements specified in the electronic device (1101), an external electronic device (e.g., the electronic device (1104)), or a network system (e.g., the second network (1199)). According to one embodiment, the wireless communication module (1192) 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), or 1 ms or less for round trip) for URLLC implementation.

[0157] The antenna module (1197) 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 (1197) 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 (1197) 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 (1198) or the second network (1199), may be selected from the plurality of antennas by, for example, the communication module (1190). A signal or power may be transmitted or received between the communication module (1190) and an external electronic device via the selected at least one antenna. In some embodiments, in addition to the radiator, another component (e.g., a radio frequency integrated circuit (RFIC)) may be additionally formed as a part of the antenna module (1197).

[0158] According to various embodiments, the antenna module (1197) may form a mmWave antenna module. In one embodiment, the mmWave antenna module may include a printed circuit board, an RFIC disposed on or adjacent a first side (e.g., a bottom side) of the printed circuit board and capable of supporting a designated high frequency band (e.g., a mmWave band), and a plurality of antennas (e.g., an array antenna) disposed on or adjacent a second side (e.g., a top side or a side side) of the printed circuit board and capable of transmitting or receiving signals in the designated high frequency band.

[0159] 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)).

[0160] According to one embodiment, commands or data may be transmitted or received between the electronic device (1101) and an external electronic device (1104) via a server (1108) connected to a second network (1199). Each of the external electronic devices (1102 or 1104) may be the same or a different type of device as the electronic device (1101). According to one embodiment, all or part of the operations executed in the electronic device (1101) may be executed in one or more of the external electronic devices (1102, 1104, or 1108). For example, when the electronic device (1101) is to perform a certain function or service automatically or in response to a request from a user or another device, the electronic device (1101) 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 (1101). The electronic device (1101) 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 (1101) may provide an ultra-low latency service by using distributed computing or mobile edge computing, for example. In another embodiment, the external electronic device (1104) may include an Internet of Things (IoT) device. The server (1108) may be an intelligent server utilizing machine learning and / or a neural network.According to one embodiment, an external electronic device (1104) or server (1108) may be included within the second network (1199). The electronic device (1101) 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.

[0161] FIG. 12 is a block diagram (1200) of a display module (1160) according to various embodiments. Referring to FIG. 12, the display module (1160) may include a display (1210) and a display driver IC (DDI) (1230) for controlling the display (1210). The DDI (1230) may include an interface module (1231), a memory (1233) (e.g., a buffer memory), an image processing module (1235), or a mapping module (1237). The DDI (1230) may receive, for example, image information including image data or an image control signal corresponding to a command for controlling the image data, from another component of the electronic device (1101) through the interface module (1231). For example, according to one embodiment, image information may be received from a processor (1120) (e.g., a main processor (1121) (e.g., an application processor) or an auxiliary processor (1123) (e.g., a graphics processing unit) that operates independently of the function of the main processor (1121). The DDI (1230) may communicate with a touch circuit (1250) or a sensor module (1176) through the interface module (1231). In addition, the DDI (1230) may store at least a part of the received image information in the memory (1233), for example, in units of frames. The image processing module (1235) may, for example, perform preprocessing or postprocessing (e.g., resolution, brightness, or size adjustment) on at least a part of the image data based on at least a characteristic of the image data or a characteristic of the display (1210). The mapping module (1237) may output a voltage value or a value corresponding to the image data preprocessed or postprocessed through the image processing module (1235). Current values ​​can be generated.According to one embodiment, the generation of voltage values ​​or current values ​​may be performed at least in part based on, for example, properties of pixels of the display (1210) (e.g., arrangement of pixels (RGB stripe or pentile structure), or size of each sub-pixel). At least some pixels of the display (1210) may be driven at least in part based on, for example, the voltage values ​​or current values, so that visual information (e.g., text, images, or icons) corresponding to the image data may be displayed through the display (1210).

[0162] According to one embodiment, the display module (1160) may further include a touch circuit (1250). The touch circuit (1250) may include a touch sensor (1251) and a touch sensor IC (1253) for controlling the touch sensor (1251). The touch sensor IC (1253) may control the touch sensor (1251) to detect, for example, a touch input or a hovering input for a specific location of the display (1210). For example, the touch sensor IC (1253) 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 (1210). The touch sensor IC (1253) may provide information (e.g., location, area, pressure, or time) regarding the detected touch input or hovering input to the processor (1120). According to one embodiment, at least a portion of the touch circuit (1250) (e.g., touch sensor IC (1253)) may be included as part of the display driver IC (1230), or as part of the display (1210), or as part of another component (e.g., auxiliary processor (1123)) disposed external to the display module (1160).

[0163] According to one embodiment, the display module (1160) 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 (1176), 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 (1160) (e.g., the display (1210) or the DDI (1230)) or a part of the touch circuit (1250). For example, when the sensor module (1176) embedded in the display module (1160) 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 (1210). For another example, if the sensor module (1176) embedded in the display module (1160) includes a pressure sensor, the pressure sensor may obtain pressure information associated with a touch input through a portion or the entire area of ​​the display (1210). According to one embodiment, the touch sensor (1251) or the sensor module (1176) may be disposed between pixels of a pixel layer of the display (1210), or above or below the pixel layer.

[0164] The operations of the components of the above-described slideable electronic device (100) can be expressed as follows.

[0165] For example, a slidable electronic device (e.g., a slidable electronic device (100)) may include a housing (e.g., a housing (103)) including a first housing part (e.g., a first housing part (101)) and a second housing part (e.g., a second housing part (102)) engaged with the first housing part. The second housing part may be configured to slide relative to the first housing part. The slidable electronic device may include a flexible display panel (e.g., a flexible display panel (110)) coupled to the first housing part and the second housing part such that the second housing part is at least partially rolled into the first housing part as the second housing part is slid relative to the first housing part, thereby changing the size of an active area viewable from a front side of the housing. The slidable electronic device may include a display driving circuit (e.g., a display driving circuit (302)) within the housing. The display driving circuit may be configured to emit light at least some of the first light-emitting elements positioned within the first region to display a screen within the first region within the first part having rounded corners adjacent to a boundary between the first part and the second part, in a state in which a first part of the active area is visible from the front side and a second part of the active area is not visible from the front side. The display driving circuit may be configured to emit light at least some of the second light-emitting elements positioned within the second region within the first part, which is positioned outside the rounded corners, for a reference time while the screen is displayed within the state.

[0166] For example, the display driving circuit may be configured to emit light, including the first light-emitting elements and the second light-emitting elements, to display an extended screen after the state is changed to another state in which the first part is visible from the front side and at least a portion of the second part is visible from the front side.

[0167] For example, the display driving circuit may be configured to emit light from at least some of the second light-emitting elements while the screen is displayed within the state, in order to reduce afterimages caused by the second light-emitting elements used to display the extended screen upon change to the other state.

[0168] For example, the display driving circuit may be configured to periodically change the positions of at least some of the second light-emitting elements that emit light while the screen is displayed within the state.

[0169] For example, the sliderable electronic device may include a processor (e.g., processor (301)) within the housing. The display driving circuit may be configured to receive information about an image from the processor, and, within the state, to emit light at least some of the first light-emitting elements based on a portion of the image to display the screen within the first region, and, while the screen is displayed within the state, to emit light at least some of the second light-emitting elements based on another portion of the image.

[0170] For example, at least some of the second light-emitting elements may emit light based on gamma correction for the other part of the image.

[0171] For example, the gamma correction may be performed by the processor before the processor transmits the information to the display driving circuit.

[0172] For example, the gamma correction may be executed by the display driving circuit after the display driving circuit receives the information from the processor.

[0173] For example, the display driving circuit may be configured to emit light from at least some of the second light-emitting elements to provide gradient content within the second region having slightly different grayscale values ​​in a content of the other portion of the image received from the processor.

[0174] For example, at least some of the second light-emitting elements may emit light based on adjustment of the transparency of another part of the image.

[0175] For example, the adjustment of the transparency may be performed by the processor before the processor transmits the information to the display driving circuit.

[0176] For example, the adjustment of the transparency may be performed by the display driving circuit after the display driving circuit receives the information from the processor.

[0177] For example, the display driving circuit may be configured to emit light at least some of the second light-emitting elements based on periodically changing the overall transparency of the other portion of the image while the screen is displayed within the state.

[0178] For example, the display driving circuit may be configured to increase the number of at least some of the second light-emitting elements that emit light while the screen is displayed within the state, based on a length of time that the screen is displayed within the state.

[0179] For example, the display driving circuit may be configured to increase the transparency of content provided within the second region by emitting at least some of the second light-emitting elements based on a length of time that the screen is displayed within the state.

[0180] For example, the processor may be configured to receive a user input that causes the state to change to another state in which the first part is visible from the front side and at least a portion of the second part is visible from the front side, and to transmit a control command or a control signal to the display driving circuit in response to the user input before the state changes to the other state.

[0181] For example, the display driving circuit may be configured to receive the control command or the control signal from the processor, and increase the number of at least some of the second light-emitting elements that emit light while the screen is displayed within the state according to the control command or the control signal before the state is changed to the other state.

[0182] For example, the display driving circuit may be configured to receive the control command or the control signal from the processor, and increase the transparency of the content provided within the second region by emitting light at least some of the second light-emitting elements according to the control command or the control signal before the state is changed to the other state.

[0183] For example, the method described above may be implemented in a sliderable electronic device having a flexible display panel including a housing and an active area configured to be at least partially rolled into the housing. The method may include emitting light in a first area within the first part, the first area having rounded corners adjacent to a boundary between the first part and the second part, to display a screen in a state in which a first part of the active area is visible from the front side and a second part of the active area is not visible from the front side. The method may include emitting light in a second area within the first part, the second area being outside the rounded corners, for a reference time while the screen is displayed in the state.

[0184] For example, a non-transitory computer-readable storage medium may store one or more programs for the methods described above. The one or more programs may include instructions that, when executed by a sliderable electronic device having a flexible display panel including a housing and an active area configured to be at least partially rolled into the housing, cause the sliderable electronic device to emit light in a first area within the first part, the first area having rounded corners adjacent to a boundary between the first part and the second part, to display a screen in a state in which a first part of the active area is visible from the front side and a second part of the active area is not visible from the front side, and to emit light for a reference time, while the screen is displayed in the state, in at least a portion of the second light-emitting elements within a second area within the first part, the second area being outside the rounded corners.

[0185] 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.

[0186] The various embodiments of this document and the terminology used therein are not intended to limit the technical features described in this document to specific embodiments, but should be understood to include various modifications, equivalents, or substitutes of the embodiments. In connection with the description of the drawings, similar reference numerals may be used for similar or related components. The singular form of a noun corresponding to an item may include one or more of the items, unless the context clearly indicates otherwise. In this document, each of the phrases "A or B", "at least one of A and B", "at least one of A or B", "A, B, or C", "at least one of A, B, and C", and "at least one of A, B, or C" can include any one of the items listed together in the corresponding phrase among those phrases, or all possible combinations thereof. Terms such as "first," "second," or "first" or "second" may be used merely to distinguish one component from another, and do not limit the components in any other respect (e.g., importance or order). When a component (e.g., a first component) is referred to as "coupled" or "connected" to another (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0187] 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).

[0188] Various embodiments of the present document may be implemented as software (e.g., a program (1140)) including one or more instructions stored in a storage medium (e.g., an internal memory (1136) or an external memory (1138)) readable by a machine (e.g., an electronic device (1101)). For example, a processor (e.g., a processor (1120)) of the machine (e.g., an electronic device (1101)) 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.

[0189] According to one embodiment, the method according to various embodiments disclosed in this document may be provided as included in a computer program product. The computer program product may be traded as a commodity between a seller and a buyer. The computer program product may be distributed in the form of a machine-readable storage medium (e.g., compact disc read-only memory (CD-ROM)), or may be distributed online (e.g., downloaded or uploaded) via an application store (e.g., Play Store™) or directly between two user devices (e.g., smart phones). In the case of online distribution, at least a portion of the computer program product may be temporarily stored or temporarily generated in a machine-readable storage medium, such as the memory of a manufacturer's server, an application store's server, or an intermediary server.

[0190] According to various embodiments, each component (e.g., a module or a program) of the above-described components may include one or more entities, and some of the entities may be separated and placed in other components. According to various embodiments, one or more components or operations of the aforementioned components may be omitted, or one or more other components or operations may be added. Alternatively or additionally, a plurality of components (e.g., a module or a program) may be integrated into a single component. In such a case, the integrated component may perform one or more functions of each of the plurality of components identically or similarly to those performed by the corresponding component among the plurality of components prior to the integration. According to various embodiments, the operations performed by a module, program, or other component may be executed sequentially, in parallel, iteratively, or heuristically, or one or more of the operations may be executed in a different order, omitted, or one or more other operations may be added.

Claims

1. In a slidable electronic device, A housing comprising a first housing part and a second housing part engaged with the first housing part, the second housing part being configured to slide relative to the first housing part; A flexible display panel coupled to the first housing part and the second housing part such that the size of the active area visible from the front side of the housing is changed by at least partially rolling into the first housing part as the second housing part slides relative to the first housing part; and A display driving circuit is included within the housing, wherein the display driving circuit comprises: In a state where a first part of the active area is visible from the front side and a second part of the active area is not visible from the front side, at least some of the first light-emitting elements positioned within the first area within the first part having rounded corners adjacent to a boundary between the first part and the second part are emitted to display a screen, configured to cause at least some of the second light-emitting elements within the second region within the first part located outside the rounded corners to emit light for a reference time while the above screen is displayed within the above state; Slideable electronic device.

2. In claim 1, the display driving circuit, The above state is further configured to cause the light emitting elements including the first light emitting elements and the second light emitting elements to emit light to display an extended screen after the above state is changed to another state in which the first part is visible from the front side and at least a part of the second part is visible from the front side. Slideable electronic device.

3. In claim 2, the display driving circuit, In order to reduce afterimages caused by the second light-emitting elements used to display the extended screen according to the change to the other state, the screen is configured to emit light at least some of the second light-emitting elements while being displayed within the state. Slideable electronic device.

4. In claim 1, the display driving circuit, Further configured to periodically change the positions of at least some of the second light-emitting elements that emit light while the screen is displayed within the state; Slideable electronic device.

5. In claim 1, Further comprising a processor within the housing, The above display driving circuit, Receive information about the image from the above processor, Within the above state, to display the screen within the first region, at least a part of the first light-emitting elements are illuminated based on a part of the image, configured to cause at least a portion of said second light-emitting elements to emit light based on another portion of said image while said screen is displayed within said state; Slideable electronic device.

6. In claim 5, at least some of the second light-emitting elements, Based on the gamma correction for the other part of the above image, the light is emitted, Slideable electronic device.

7. In claim 6, the gamma correction is: Before the processor transmits the information to the display driving circuit, executed by the processor, Slideable electronic device.

8. In claim 6, the gamma correction is: After the display driving circuit receives the information from the processor, the display driving circuit executes, Slideable electronic device.

9. In claim 5, the display driving circuit, configured to emit light at least some of said second light-emitting elements to provide gradient content having slightly different grayscale values ​​in a content of said other part of said image received from said processor within said second region; Slideable electronic device.

10. In claim 5, at least some of the second light-emitting elements, Based on the adjustment of the transparency of the other part of the above image, the luminous, Slideable electronic device.

11. In claim 10, the adjustment of the transparency is: Before the processor transmits the information to the display driving circuit, executed by the processor, Slideable electronic device.

12. In claim 10, the adjustment of the transparency is: After the display driving circuit receives the information from the processor, the display driving circuit executes, Slideable electronic device.

13. In claim 5, the display driving circuit, wherein said screen is configured to emit light at least a portion of said second light-emitting elements based on periodically changing the overall transparency of said other portion of said image while said screen is displayed within said state; Slideable electronic device.

14. A method of executing in a sliderable electronic device having a housing and a flexible display panel including an active area configured to be at least partially rolled into the housing, An operation of emitting light at least some of first light-emitting elements positioned within a first region within the first part to display a screen, the first region having rounded corners adjacent to a boundary between the first part and the second part, within a state in which a first part of the active area is visible from the front side and a second part of the active area is not visible from the front side; An operation of emitting light for a reference time at least a portion of second light-emitting elements within a second region within the first part positioned outside the rounded corners while the screen is displayed within the state; method.

15. In a non-transitory computer-readable storage medium storing one or more programs, said one or more programs: When implemented by a sliderable electronic device having a housing and a flexible display panel comprising an active area configured to be at least partially rolled into the housing, In a state where a first part of the active area is visible from the front side and a second part of the active area is not visible from the front side, at least some of the first light-emitting elements positioned within the first area within the first part having rounded corners adjacent to a boundary between the first part and the second part are emitted to display a screen, While the above screen is displayed within the above state, at least some of the second light-emitting elements within the second region within the first part located outside the rounded corners are made to emit light for a reference time. comprising instructions causing the above slideable electronic device to operate; A non-transitory computer-readable storage medium.

Images