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KR-20260067948-A - ELECTRONIC DEVICE INCLUDING FLEXIBLE DISPLAY

KR20260067948AKR 20260067948 AKR20260067948 AKR 20260067948AKR-20260067948-A

Abstract

Embodiments of the present disclosure relate to an electronic device including a flexible display. An electronic device according to one embodiment of the present disclosure comprises a first housing, a second housing movably coupled to the first housing so as to vary between a slide-in state and a slide-out state of the electronic device, and a flexible display. The flexible display comprises a display area, a first non-display area extending from the display area in a first direction which is the direction in which the flexible display moves when the electronic device changes from the slide-out state to the slide-in state, and a second non-display area extending from the first non-display area in the first direction. The first non-display area is an area in which a thin film encapsulation layer is formed with a structure in which an organic layer is disposed between two inorganic layers, and the second non-display area is an area in which a thin film encapsulation layer is formed with a structure in which the two inorganic layers are stacked. The second non-display area may be positioned so as not to be included in the bending portion regardless of the state of the electronic device. Various other embodiments may be included.

Inventors

  • 안성호
  • 우성관
  • 이정우

Assignees

  • 삼성전자주식회사

Dates

Publication Date
20260513
Application Date
20250124
Priority Date
20241106

Claims (20)

  1. In electronic devices, First housing; A second housing movably coupled to the first housing so as to vary between a slide-in state and a slide-out state for the electronic device; and A flexible display comprising a bending portion disposed in the first housing and the second housing, which moves according to the movement of the second housing and is bent at a predetermined radius of curvature, and The above flexible display is, A display area in which a plurality of pixels are activated, a first non-display area extended from the display area in a first direction which is the direction in which the flexible display moves when the electronic device changes from the slide-out state to the slide-in state, and a second non-display area extended from the first non-display area in the first direction. The first non-display area is an area in which a thin film encapsulation layer is formed with a structure in which an organic layer is disposed between two inorganic layers, and the second non-display area is an area in which a thin film encapsulation layer is formed with a structure in which the two inorganic layers are stacked. The above bending portion changes its position on the flexible display according to the state variation of the electronic device, and the second non-display area is positioned so as not to be included in the bending portion regardless of the state of the electronic device. Electronic device.
  2. In Article 1, The above thin film encapsulation layer is, A first bag region comprising a first bag layer including an inorganic layer, a second bag layer disposed on the first bag layer and including an organic layer, a third bag layer disposed on the second bag layer and including an inorganic layer, and A second bag region disposed around the first bag region and comprising the first bag layer and the third bag layer, The first bag area is arranged to correspond to the display area and the first non-display area, and The second bag area is positioned to correspond to the second non-display area, Electronic device.
  3. In Article 1, It further includes at least one dam disposed in the second non-display area, and The thin film encapsulation layer covers the at least one dam, Electronic device.
  4. In Paragraph 3, The at least one dam placed in the second non-display area is, A first dam having a first width and a first height; A second dam having a second width and a second height, positioned at a specified interval from the first dam; and A third dam having a third width and a third height, comprising a third dam positioned at a specified interval from the second dam. Electronic device.
  5. In Paragraph 4, The first width, the second width, and the third width are identical, The first height, the second height, and the third height are the same. Electronic device.
  6. In Paragraph 4, The first width, the second width, and the third width are different from each other, The first height, the second height, and the third height are different from each other. Electronic device.
  7. In Paragraph 4, The cross-sectional shape of the first dam, the cross-sectional shape of the second dam, and the cross-sectional shape of the third dam are identical. Electronic device.
  8. In Paragraph 4, The cross-sectional shape of the first dam, the cross-sectional shape of the second dam, and the cross-sectional shape of the third dam are different from each other. Electronic device.
  9. In Paragraph 4, The above non-display area further includes a third non-display area extending in a second direction perpendicular to the first direction from the first display area or the second display area, and The number of at least one dam placed in the third non-display area is less than the number of at least one dam placed in the second non-display area, Electronic device.
  10. In Paragraph 3, In the second non-display area, further comprising a peel-prevention dam disposed at the outer edge of the at least one dam and covering the end of the thin film encapsulation layer, Electronic device.
  11. In Article 10, In the second non-displayed area above, further comprising a crack-prevention dam disposed on the outer edge of the peeling-prevention dam and having a smaller size than the peeling-prevention dam, Electronic device.
  12. In electronic devices, First housing; A second housing movably coupled to the first housing so as to vary between a slide-in state and a slide-out state for the electronic device; and A flexible display comprising an upper portion fixed to at least a part of the first housing, and a lower portion that moves inside the second housing according to the movement of the second housing, The lower portion of the above flexible display is, A first region including a pixel array; A second region comprising a first inorganic layer, a second inorganic layer, and an organic layer located between the first inorganic layer and the second inorganic layer; and It includes the first inorganic layer, the second inorganic layer, and a third region including a dam located below the first inorganic layer and the second inorganic layer, In the above slide-in state, at least a portion of the first region is positioned in a bent state, and In the above slide-out state, at least a portion of the second region is positioned in a bent state, Electronic device.
  13. In Article 12, The above third area is In the above slide-out state, without bending, positioned parallel to the upper part, Electronic device.
  14. In Article 13, It further includes a battery disposed in the second housing above, The third region is positioned between the battery and the rear of the second housing in the slide-out state. Electronic device.
  15. In Article 14, The second region is positioned between the battery and the rear surface of the second housing in the slide-in state. Electronic device.
  16. In Article 12, The area of the second region is larger than the area of the third region. Electronic device.
  17. In Article 12, The cross-sectional shape of the above dam has a regular taper shape in which the width decreases from bottom to top, Electronic device.
  18. In Article 17, The above dam includes a first dam and a second dam, and The distance between the first dam and the second dam is greater than the width of the first dam corresponding to the lower width of the cross-section of the first dam. Electronic device.
  19. In Article 18, The size of the cross-section of the first dam is different from the size of the cross-section of the second dam. Electronic device.
  20. In Article 19, The above dam further includes a third dam, and The size of the cross-section of the third dam is different from the size of the cross-section of the first dam. Electronic device.

Description

Electronic device including flexible display Embodiments of the present disclosure relate to an electronic device including a flexible display. Electronic devices are being developed to become increasingly slimmer, increase rigidity, enhance design aspects, and differentiate their functional elements. Electronic devices are moving away from uniform rectangular shapes and are gradually transforming into various shapes. Electronic devices can have a deformable structure that allows for convenient portability and the use of a large-screen display. Electronic devices may include a rollable electronic device (e.g., a sliderable electronic device) that can vary the display area of a flexible display (e.g., a rollable display) through the support of housings that operate in a sliding manner relative to each other. The information described above may be provided as related art for the purpose of aiding understanding of the present disclosure. No claim or determination is made as to whether any of the foregoing may be applied as prior art in relation to the present disclosure. The electronic device may include a rollable electronic device (e.g., a sliderable electronic device) capable of inducing the expansion and/or reduction of the display area of a flexible display (e.g., a rollable display, an expandable display, or a stretchable display) depending on the operating state. The rollable electronic device may include a first housing and a second housing movably coupled to each other. For example, the first housing and the second housing may operate slidably to each other and may support at least a portion of the flexible display, and the flexible display may be induced to have a first display area in a slide-in state and a second display area larger than the first display area in a slide-out state. A portion of the flexible display of an electronic device may be bent to a specified curvature when the display area is expanded or reduced, and stress applied to said portion may cause damage to the flexible display. For example, at least a portion of the flexible display may experience interlayer delamination due to stress during bending. Interlayer delamination may refer to a phenomenon in which some layers (e.g., thin film encapsulation layers) among a plurality of layers included in the flexible display peel off. Embodiments of the present disclosure can provide an electronic device including a flexible display that is robust to stress during bending and can reduce interlayer delamination. The technical problems to be solved in this disclosure are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art to which this disclosure pertains from the description below. An electronic device according to one embodiment of the present disclosure may include a first housing, a second housing movably coupled to the first housing so as to vary between a slide-in state and a slide-out state of the electronic device, and a flexible display comprising a bending portion disposed in the first housing and the second housing, which moves according to the movement of the second housing and bends with a predetermined radius of curvature. The flexible display may include a display area in which a plurality of pixels are activated, a first non-display area extended from the display area in a first direction in which the flexible display moves when the electronic device changes from the slide-out state to the slide-in state, and a second non-display area extended from the first non-display area in the first direction. The first non-display area is an area in which a thin film encapsulation layer is formed with a structure in which an organic layer is disposed between two inorganic layers, and the second non-display area may be an area in which a thin film encapsulation layer is formed with a structure in which the two inorganic layers are stacked. The above bending portion changes its position on the flexible display according to the state variation of the electronic device, and the second non-display area can be positioned so as not to be included in the bending portion regardless of the state of the electronic device. An electronic device according to one embodiment of the present disclosure may include a first housing, a second housing movably coupled to the first housing so as to vary between a slide-in state and a slide-out state, an upper portion fixed to at least a part of the first housing, and a lower portion moving inside the second housing as the second housing moves. The lower portion of the flexible display may include a first region including a pixel array, a first inorganic layer, a second inorganic layer, and a second region including an organic layer located between the first inorganic layer and the second inorganic layer, and a third region including a dam located below the first inorganic layer, the second inorganic layer, and the first inorgan