DEVICE

DE102022128319B4Active Publication Date: 2025-07-31LG DISPLAY CO LTD
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Patent Information

Application Number
DE102022128319
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-12-31
Filing Date
2022-10-26
Publication Date
2025-07-31
Estimated Expiration
2042-10-26

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Abstract

A device comprising:a display element (100) configured to display an image;a vibration device (200, 210, 220, 230, 240) on a rear surface of the display element (100);a support frame (300) on a rear surface of the vibration device (200, 210, 220, 230, 240) and an adhesive element (400) between the support frame (300) and the rear surface of the display element (100), wherein the adhesive element (400) and / or the support frame (300) are spaced apart from the vibration device (200, 210, 220, 230, 240), wherein the vibration device (200, 210, 220, 230, 240) is configured to be vibrated in a direction towards the display element (100), wherein the rear surface of the display element (100) and the support frame (300) are spaced apart by the adhesive element (400) to form a gap (GS) therebetween, wherein the vibration device (200, 210, 220, 230, 240) is arranged in the gap (GS), and wherein a side surface of the adhesive element (400) has a concavely curved shape in cross section, which faces the gap (GS);
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Claims

[1] Device comprising: a display element (100) configured to display an image; a vibration device (200, 210, 220, 230, 240) on a rear surface of the display element (100); a support frame (300) on a rear surface of the vibration device (200, 210, 220, 230, 240) and an adhesive element (400) between the support frame (300) and the rear surface of the display element (100), wherein the adhesive element (400) and / or the support frame (300) are spaced from the vibration device (200, 210, 220, 230, 240), wherein the vibration device (200, 210, 220, 230, 240) is configured to vibrate in a direction towards the display element (100), wherein the rear surface of the display element (100) and the support frame (300) are spaced apart by the adhesive element (400) to form a gap (GS) therebetween, wherein the vibration device (200, 210, 220, 230, 240) is arranged in the gap (GS), and wherein a side surface of the adhesive element (400) has a concavely curved shape in cross section, which faces the gap space (GS). [2] The device according to claim 1, wherein the vibration device (200, 210, 220, 230, 240) is configured to vibrate the display element (100) to output sound and / or haptic feedback. [3] Device according to one of the preceding claims, wherein the vibration device comprises a first vibration device (210) and a second vibration device (220), and both the first vibration device (210) and the second vibration device (220) are arranged between the rear surface of the display element (100) and the support frame (300). [4] The device according to claim 3, wherein the first vibration device (210) and the second vibration device (220) are spaced apart from each other by an interval that is in the range of 35% to 40% of a length of the first vibration device (210) and / or the second vibration device (220). [5] The device according to claim 3 or 4, wherein the display element (100) comprises a first display surface (A1), a second display surface (A2) and a third display surface (A3) between the first display surface (A1) and the second display surface (A2), and the first vibration device (210) and the second vibration device (220) face the first display surface (A1). [6] Device according to one of the preceding claims, wherein the gap space (GS) and / or the side surface of the adhesive element (400) surrounding the gap space (GS) have a circular shape or an oval shape. [7] Device comprising: a display element (100) configured to display an image; a support frame (300) on a rear surface of the display element (100); an adhesive element (400) between the support frame (300) and the rear surface of the display element (100), the adhesive element (400) containing a cavity portion (GS); and a vibration device (200, 210, 220, 230, 240) arranged in the cavity portion (GS) of the adhesive element (400) to vibrate the display element (100), wherein the rear surface of the display element (100) and the support frame (300) are spaced apart by the adhesive element (400) to form the cavity portion (GS) therebetween, and wherein a side surface of the adhesive element (400) has a concave curved shape in cross section, which faces the cavity portion (GS). [8] The device according to claim 7, wherein the display element (100) comprises a first display surface (A1), a second display surface (A2) and a folding surface (A3) between the first display surface (A1) and the second display surface (A2), and the cavity portion (GS) of the adhesive element (400) overlaps with at least one of the first display surface (A1) and the second display surface (A2). [9] Device according to claim 8, wherein the adhesive element (400) is not arranged in the folding area (A3). [10] Apparatus according to any preceding claim when dependent on claim 5, claim 8 or claim 9, wherein the vibration device (200, 210, 220, 230, 240) comprises: a first vibration device (210) and a second vibration device (220) arranged in the cavity portion (GS) of the adhesive element (400) in an area overlapping with the first display surface (A1) to vibrate the first display surface (A1) of the display element (100); and a third vibration device (230) and a fourth vibration device (240) arranged in the cavity portion (GS) of the adhesive member (400) in an area overlapping with the second display surface (A2) to vibrate the second display surface (A2) of the display element (100). [11] Device according to one of the preceding claims when dependent on claim 5 or claim 10, wherein a total area of an area of the first vibration device (210) and an area of the second vibration device (220) corresponds to the range of 25% to 31% of the first display area (A1). [12] Apparatus according to any one of the preceding claims when dependent on claim 5 or claim 10, wherein a distance between each of the first vibration device (210) and the second vibration device (220) and the support frame (300) is in the range of 0.5 times to 3 times a thickness of each of the first vibration device (210) and the second vibration device (220). [13] A device according to any one of the preceding claims when dependent on claim 5 or claim 10, wherein a width of the adhesive member (400) corresponding to the first display area (A1) is in the range of 10% to 30% of a width of the first display area (A1) in the first direction, the portion of the adhesive member (400) overlapping the first display area (A1). [14] Apparatus according to any preceding claim when dependent on claim 3 or claim 10, further comprising a partition (700) disposed between the rear surface of the display element (100) and the support frame (300) and between the first vibration device (210) and the second vibration device (220). [15] Device according to one of the preceding claims when dependent on claim 3 or claim 10, further comprising one or more contact elements (750) each arranged between the support frame (300) and the first vibration device (210) and / or the second vibration device (220). [16] The apparatus of claim 15, wherein each of the one or more contact elements (750) includes a material configured to absorb vibration or accommodate vibration. [17] Apparatus according to any preceding claim when dependent on claim 3 or claim 9, wherein each of the first vibrating device (210) and the second vibrating device (220) has a bimorph structure. [18] Device according to one of the preceding claims, wherein the vibration device (200, 210, 220, 230, 240) has a circular shape, an oval shape or a rounded shape. [19] Device according to one of the preceding claims, wherein the vibration device (200, 210, 220, 230, 240) is connected to the rear surface of the display element (100) by a connecting element (205). [20] Device according to one of the preceding claims, wherein the vibration device (200, 210, 220, 230, 240) comprises: a first electrode portion (210b); a second electrode section (210c) and an oscillation section (210a) arranged between the first electrode section (210b) and the second electrode section (210c). [21] The device according to claim 20, wherein the vibration section (210a) comprises a piezoelectric inorganic material and / or a piezoelectric organic material. [22] The device according to claim 20 or 21, wherein the vibration device comprises a plurality of first sections (210a1) and a plurality of second sections (210a2) arranged between the plurality of first sections (210a1), wherein the plurality of second sections (210a2) contain an organic material, and each of the plurality of first sections (210a1) comprises a piezoelectric inorganic material and / or a piezoelectric organic material. [23] Device according to one of the preceding claims, wherein the display element (100) comprises: a front element (130); a back element (170) and a display panel (110) disposed between the front element (130) and the rear element (170), the display panel (110) including at least one pixel configured to display an image, wherein the vibration device (200, 210, 220) is coupled to the rear element (170). [24] Device comprising: a display element (100) configured to display a video; a supporting frame (300); a vibration device (200, 210, 220, 230, 240) arranged between the display element (100) and the support frame (300); and an adhesive element (400) arranged between the support frame (300) and the display element (100), wherein the adhesive element (400) is spaced from the vibration device (200, 210, 220, 230, 240), wherein the rear surface of the display element (100) and the support frame (300) are spaced apart by the adhesive element (400) to form a gap (GS) therebetween, wherein the vibration device (200, 210, 220, 230, 240) is arranged in the gap (GS), and wherein a side surface of the adhesive element (400) has a concavely curved shape in cross section, which faces the gap space (GS). [25] Device according to claim 24, wherein the vibration device (200, 210, 220, 230, 240) is spaced from the support frame (300). [26] The apparatus of claim 24, wherein the vibration device (200, 210, 220, 230, 240) is configured to output audio information synchronized with the video. [27] The device according to claim 24, wherein an area of the vibration device (200, 210, 220, 230, 240) is in the range of 25% to 31% of the display area. [28] Device according to one of claims 24 to 27, wherein the vibration device (200, 210, 220, 230, 240) comprises: a first vibration device (210) overlapping with a first display surface (A1) of the display element (100); and a second vibration device (220) overlapping with a second display surface (A2) of the display element (100). [29] The device according to claim 28, wherein the display element (100) includes a third display surface (A3) between the first display surface (A1) and the second display surface (A2), and the display element (100) is configured to bend at the third display surface (A3), and the first vibration device (210) and the second vibration device (220) do not overlap with the third display surface. [30] Device according to one of claims 24 to 26, wherein the adhesive element (400) has a shape of a closed loop surrounding the vibration device (200, 210, 220, 230, 240). [31] Device according to one of claims 24 to 26, wherein the adhesive element (400), the support frame (300) and the display element (100) form a sound chamber and the vibration device (200, 210, 220, 230, 240) is arranged in the sound chamber. [32] Device according to one of claims 24 to 26, wherein the vibration device (200, 210, 220, 230, 240) comprises: a first cover portion (210d); a first adhesive layer (210f); a first electrode portion (210b); an oscillating section (210a); a second electrode portion (210c); a second adhesive layer (210g) and a second cover section (210e), wherein the oscillation section (210a) is arranged between the first electrode section (210b) and the second electrode section (210c), the first adhesive layer (210f) is arranged between the first cover portion (210d) and the first electrode portion (210b) and the second adhesive layer (210g) is arranged between the second electrode portion (210c) and the second cover portion (210e). [33] The device according to claim 32, wherein the first electrode portion (210b), the oscillation portion (210a) and the second electrode portion (210c) are completely covered by the first adhesive layer (210f) and the second adhesive layer (210g). [34] Device according to one of claims 24 to 33, wherein the vibration device (200, 210, 220, 230, 240) is configured to be vibrated in a direction towards the display element (100).

Citation Information

Patent Citations

  • Vibration device and display apparatus including the same

    JP2021164165A

  • Display apparatus

    US20190116406A1

  • Display apparatus including flexible vibration module and method of manufacturing the flexible vibration module

    US20200059733A1

  • JP002021164165A