Abstract: The present invention relates to a TPO sheet allowing display and touch sensing. More specifically, the present invention relates to a TPO sheet having a color and light-transmitting properties used as surface materials for automobile interior parts. According to the present invention, when the TPO sheet is used as surface materials for automobile interior parts, an interior decorative effect may be obtained due to color properties thereof. In addition, when the TPO sheet is attached to the surface of a display panel, due to light-transmitting properties thereof, light emitted from the display panel may be transmitted through the TPO sheet. Thus, content displayed on the display panel may be visible through the TPO sheet. In addition, a touch sensing operation may be performed on the TPO sheet.

Abstract: The present invention relates to a TPO sheet allowing display and touch sensing. More specifically, the present invention relates to a TPO sheet having a color and light-transmitting properties used as surface materials for automobile interior parts. According to the present invention, when the TPO sheet is used as surface materials for automobile interior parts, an interior decorative effect may be obtained due to color properties thereof. In addition, when the TPO sheet is attached to the surface of a display panel, due to light-transmitting properties thereof, light emitted from the display panel may be transmitted through the TPO sheet. Thus, content displayed on the display panel may be visible through the TPO sheet. In addition, a touch sensing operation may be performed on the TPO sheet.

Abstract: An automotive sheet including a plurality of polygonal unit patterns and a method of manufacturing the automotive sheet are disclosed. In particular, horizontal and vertical lengths of each unit pattern included in a pattern unit may be set in consideration of elongation of a curved sheet. The automotive sheet reduces distortion of the pattern and forms a uniform pattern size and shape, such that it is possible to improve the aesthetic appearance and the tactile sensation of the automotive sheet. In addition, an outer layer of the automotive sheet is formed through vacuum molding, such as IMG molding, after which multiple patterns may be coated and printed to manufacture the automotive sheet. In the method of manufacturing the automotive sheet, therefore, time and cost are reduced compared to other methods, such as a cloth wrapping method, whereby economic efficiency is improved.

Abstract: The present invention provides relates to a polypropylene-graphene composite and a method for preparing the same, and in particular, relates to a polypropylene-graphene composite more uniformly dispersing graphene oxide into a polypropylene polymer substrate without graphene oxide aggregation and thereby obtaining an effect of enhancing mechanical properties of the composite even when a small amount of graphene oxide is added, by, in preparing the composite from mixing graphene oxide to a polypropylene polymer substrate, activing a surface of the graphene oxide with aminoalkyl trialkoxysilane, then preparing graphene oxide master batch powder organophilized through an amide bond with maleic anhydride-grafted polypropylene and mixing the graphene oxide master batch powder, and a method for preparing the same.