CN-111863873-B - Display apparatus

CN111863873BCN 111863873 BCN111863873 BCN 111863873BCN-111863873-B

Abstract

The present application relates to a display device. The display apparatus includes a display module including a first non-folding region, a second non-folding region, and a folding region disposed between the first non-folding region and the second non-folding region, a support disposed under the display module, a sub-support disposed under the support, and a plurality of coupling units disposed under the sub-support and overlapping the folding region.

Inventors

JIN SHIFENG

Assignees

三星显示有限公司

Dates

Publication Date: 20260505
Application Date: 20200304
Priority Date: 20190424

Claims (8)

1.A display device, comprising: the display module comprises a first non-folding area, a second non-folding area and a folding area, wherein the folding area is arranged between the first non-folding area and the second non-folding area; A support disposed below the display module; a sub-support disposed below the support, and A plurality of engaging units disposed below the sub-support, arranged in a first direction, extending in a second direction intersecting the first direction, and overlapping the folding region, Wherein the sub-support and the engagement unit are integrated with each other, and the engagement unit protrudes downward from the sub-support, Wherein a thickness of each of the engagement units is greater than a thickness of the sub-support in a third direction perpendicular to a plane defined by the first direction and the second direction, the thickness of the support is greater than the thickness of the sub-support, Wherein the support member disposed between the display module and the sub-support member has a Young's modulus greater than that of the sub-support member, Wherein when the display module, the support and the sub-support are folded in the folding region, compressive stress generated in the joint unit is blocked by the support so as not to be transmitted to the folding region.
2. The display device of claim 1, further comprising an adhesive disposed between the display module and the support.
3. The display device of claim 1, wherein each of the sub-support and the engagement unit comprises plastic.
4. The display device of claim 1, wherein the support comprises metal.
5. The display device of claim 1, the first and second non-folded regions being arranged in the first direction, and the engagement units being spaced apart in the first direction.
6. The display apparatus according to claim 5, wherein the engagement units are spaced apart from each other by a predetermined distance in the first direction.
7. The display device according to claim 5, wherein each of the engagement units has an inverted trapezoidal shape when viewed in the second direction.
8. The display device of claim 1, wherein the support has a thickness of 40 micrometers to 50 micrometers in the third direction.

Description

Display apparatus Cross Reference to Related Applications The present application claims priority and equity from korean patent application No. 10-2019-0047746 filed in the korean intellectual property agency on 24 th month 2019, the contents of which are incorporated herein by reference in their entirety. Technical Field Embodiments of the present disclosure herein relate to a display device, and more particularly, to a display device capable of preventing deformation in a folding region. Background Electronic apparatuses (such as smartphones, digital cameras, laptop computers, navigation devices, and smart televisions) that display images to users include display devices that display images. The display device generates an image and displays the image to a user via a display screen. Recent technical developments of display devices have prompted the development of various new display devices. For example, various flexible display devices capable of being deformed, folded, or rolled into a curved shape are being developed. The flexible display device capable of changing its shape is easy to carry and can improve user convenience. The folding display device is folded about a folding axis extending in one direction. However, the folding display device may encounter undesirable phenomena such as deformation in the folding region or damage to portions of the folding region. Disclosure of Invention Embodiments of the present disclosure can provide a display device capable of preventing deformation of a folding region. Embodiments of the inventive concept provide a display apparatus including a display module, a support, a sub-support, and a plurality of joint units, wherein the display module includes a first non-folding region, a second non-folding region, and a folding region disposed between the first non-folding region and the second non-folding region, the support is disposed under the display module, the sub-support is disposed under the support, and the plurality of joint units are disposed under the sub-support and overlap the folding region. In an embodiment of the inventive concept, a display apparatus includes a display module, a support, an adhesive, a sub-support, and a plurality of coupling units, wherein the display module includes a first non-folding region, a second non-folding region, and a folding region disposed between the first non-folding region and the second non-folding region, wherein the first non-folding region and the second non-folding region and the folding region are disposed in a first direction, the support is disposed under the display module, the adhesive is disposed between the display module and the support, the sub-support is disposed under the support, and the plurality of coupling units protrude downward from the sub-support and overlap the folding region, wherein the coupling units extend in a second direction crossing the first direction and are spaced apart in the first direction. In an embodiment of the inventive concept, a display apparatus includes a display module including a first non-folding region, a second non-folding region, and a folding region disposed between the first non-folding region and the second non-folding region, a support disposed under the display module, a sub-support disposed under the support, and a plurality of coupling units protruding downward from the sub-support and overlapping the folding region. The young's modulus of the support has a first value and the young's modulus of the sub-support has a second value that is less than the first value. Drawings Fig. 1 is a perspective view of a display device according to an embodiment of the inventive concept. Fig. 2 illustrates a folded state of the display device illustrated in fig. 1. Fig. 3 is a perspective view of a display device according to an embodiment of the inventive concept. Fig. 4 illustrates a folded state of the display device illustrated in fig. 3. Fig. 5 is an exploded perspective view of a display device according to an embodiment of the inventive concept. Fig. 6 is a perspective view of the coupling unit shown in fig. 5. Fig. 7 schematically shows a cross section of the display module shown in fig. 5. Fig. 8 is a plan view of the display module shown in fig. 7. Fig. 9 schematically shows a cross-sectional configuration of one pixel shown in fig. 8. Fig. 10 is a side view of the display device shown in fig. 5 when viewed in a second direction. Fig. 11 is an enlarged view of the fold region shown in fig. 10, the support overlapping the fold region, the sub-support overlapping the fold region, and the joining unit. Fig. 12 schematically shows a cross-section of the AA area shown in fig. 10. Fig. 13 illustrates a folded state of the display device illustrated in fig. 10. Detailed Description In this specification, when an element, region, layer, section, or the like is referred to as being "on", "connected to" or "coupled to" another element, it can be directly on, connected/coup