A foldable display apparatus includes a display panel including a flexible substrate, in which at least one folding area folded based on a folding axis and non-folding areas disposed at one side and the other side of the folding area are defined, a glass substrate disposed below the flexible substrate, including an opening portion corresponding to the folding area, and a pattern frame disposed below the glass substrate, wherein the flexible substrate includes at least one groove pattern formed to overlap the folding area, and the groove pattern is formed on a rear surface of the flexible substrate.

The present invention provides an optical film comprising a polymer resin, which comprises a first repeating unit, a second repeating unit, a third repeating unit and a fourth repeating unit, wherein the optical index of the film is 1.0%/GU or more, the first repeating unit is an imide repeating unit derived from a first diamine-based compound and a dianhydride-based compound, the second repeating unit is an imide-repeating unit derived from a second diamine-based compound and a dianhydride-based compound, the third repeating unit is an amide-repeating unit derived from a first diamine-based compound and a dicarbonyl-based compound, the fourth repeating unit is an amide-repeating unit derived from a second diamine-based compound and a dicarbonyl-based compound, the first diamine-based compound is 2,2′-bis(trifluoromethyl)benzidine (TFDB), the second diamine-based compound includes an aromatic diamine-based compound, and the third repeating unit and the fourth repeating unit are included in a proportion of 80% or more with respect to the total number of the repeating units comprising the first to fourth repeating units.

According to aspects of the disclosure, an electronic display configured to output information to a user is provided comprising a display screen curved in a first dimension and a second dimension aligned with a field-of-view of the user, the first dimension being perpendicular to the second dimension.

According to aspects of the disclosure, an electronic display configured to output information to a user is provided comprising a display screen curved in a first dimension and a second dimension aligned with a field-of-view of the user, the first dimension being perpendicular to the second dimension.

A foldable display apparatus includes a display panel including a flexible substrate, in which at least one folding area folded based on a folding axis and non-folding areas disposed at one side and the other side of the folding area are defined, a glass substrate disposed below the flexible substrate, including an opening portion corresponding to the folding area, and a pattern frame disposed below the glass substrate, wherein the flexible substrate includes at least one groove pattern formed to overlap the folding area, and the groove pattern is formed on a rear surface of the flexible substrate.

A display apparatus includes a display panel having a display region, a non-display region, and a bending region. The display apparatus further includes a polarizing plate attached to the display panel, and a micro protective layer formed on the bending region. The micro protective layer is in contact with a side surface of the polarizing plate.