A roller-blind structure, comprising a MSE-type window openable to the inside having three glasses and two separately openable frames (2,7), these two frames being an inner frame and an outer frame, the inner frame comprising a sealed glass element with a double glass, and an energy saving blind located in the space between the two frames (2, 7) of the window, characterized in that it comprises - a tube being at its ends mounted in bearings, which bearings are fastened to the inner frame of said MSE-type window, as well as - a blind material having one of its ends fastened to this tube and being rollable around the tube, which blind material, when being in an unrolled state, covers the whole MSE-type window, whereby the bearings are fastened to the upper part of the inner frame on a surface opposing the outer frame such that the tube is located in the space between the opposing surfaces of the two frames (2,7) and that said tube is arranged to be adjacent to the inner frame and the blind material is rolled onto the tube so that the blind material unrolls to the side of the tube facing the inner frame, or said tube is arranged to be adjacent to the outer frame and the blind material is rolled onto the tube so that the blind material unrolls to the side of the tube facing the outer frame. a MSE-type window openable to the inside having three glasses and two separately openable frames (2,7), these two frames being an inner frame and an outer frame, the inner frame comprising a sealed glass element with a double glass, and an energy saving blind located in the space between the two frames (2, 7) of the window, characterized in that it comprises - a tube being at its ends mounted in bearings, which bearings are fastened to the inner frame of said MSE-type window, as well as - a blind material having one of its ends fastened to this tube and being rollable around the tube, which blind material, when being in an unrolled state, covers the whole MSE-type window, whereby the bearings are fastened to the upper part of the inner frame on a surface opposing the outer frame such that the tube is located in the space between the opposing surfaces of the two frames (2,7) and that said tube is arranged to be adjacent to the inner frame and the blind material is rolled onto the tube so that the blind material unrolls to the side of the tube facing the inner frame, or said tube is arranged to be adjacent to the outer frame and the blind material is rolled onto the tube so that the blind material unrolls to the side of the tube facing the outer frame. - a tube being at its ends mounted in bearings, which bearings are fastened to the inner frame of said MSE-type window, as well as - a blind material having one of its ends fastened to this tube and being rollable around the tube, which blind material, when being in an unrolled state, covers the whole MSE-type window, whereby the bearings are fastened to the upper part of the inner frame on a surface opposing the outer frame such that the tube is located in the space between the opposing surfaces of the two frames (2,7) and that said tube is arranged to be adjacent to the inner frame and the blind material is rolled onto the tube so that the blind material unrolls to the side of the tube facing the inner frame, or said tube is arranged to be adjacent to the outer frame and the blind material is rolled onto the tube so that the blind material unrolls to the side of the tube facing the outer frame.