A display apparatus comprising a circuit board (3; 620) having row and column electrodes (7, 8) arranged thereon to connect a driver to a plurality of electrofluidic chromatophore pixel cells provided on the circuit board (3; 620), wherein each pixel cell comprises: a fluid holder for holding a polar fluid and a non-polar fluid having differing display properties; wherein the fluid holder comprises a reservoir (32; 632) having an orifice and a channel, the reservoir (32; 632) and the channel having respective cross sections, projected in the direction of a viewer, wherein the channel has a larger cross-section and a larger visible area projected in the direction of a viewer than the reservoir (32; 632), the channel being connected to the reservoir (32; 632) via said orifice so as to enable free movement of the polar fluid and non-polar fluid between the channel and the reservoir (32; 632), at least part of a surface of the channel comprising a wetting property and at least two pixel cell terminals connectable to the row and column electrodes (7, 8) on the circuit board (3; 620) and being configured to supply a supply voltage to at least part of the surface of the channel comprising the wetting property for supply voltage controlled movement of polar fluid; the at least two pixel cell terminals dielectrically separated from the polar fluid; wherein the reservoir (32; 632) is formed in a stack structure (630, 640) of homogenous film layers arranged on the circuit board (3; 620), the stack structure comprising an orifice film layer and a reservoir film layer (30; 630), wherein the reservoir (32; 632) arranged in the reservoir layer (30; 630) is obscured partly in the direction of a viewer by the orifice film layer, said orifice film layer defining said orifice that is smaller in cross-section than the cross sectional area of the reservoir (32; 632) and reducing the visible area of the reservoir; wherein the film layers have mutually differing thicknesses, with the orifice film layer having a thickness smaller than the reservoir film layer (30; 630); wherein the orifice film layer is formed by a laminate resin layer of a homogenous thickness that is laminated in the stack structure (630, 640); and wherein the reservoir film layer (30; 630) comprises a reservoir structure with support spacers supporting the orifice film layer. a fluid holder for holding a polar fluid and a non-polar fluid having differing display properties; wherein the fluid holder comprises a reservoir (32; 632) having an orifice and a channel, the reservoir (32; 632) and the channel having respective cross sections, projected in the direction of a viewer, wherein the channel has a larger cross-section and a larger visible area projected in the direction of a viewer than the reservoir (32; 632), the channel being connected to the reservoir (32; 632) via said orifice so as to enable free movement of the polar fluid and non-polar fluid between the channel and the reservoir (32; 632), at least part of a surface of the channel comprising a wetting property and at least two pixel cell terminals connectable to the row and column electrodes (7, 8) on the circuit board (3; 620) and being configured to supply a supply voltage to at least part of the surface of the channel comprising the wetting property for supply voltage controlled movement of polar fluid; the at least two pixel cell terminals dielectrically separated from the polar fluid; wherein the reservoir (32; 632) is formed in a stack structure (630, 640) of homogenous film layers arranged on the circuit board (3; 620), the stack structure comprising an orifice film layer and a reservoir film layer (30; 630), wherein the reservoir (32; 632) arranged in the reservoir layer (30; 630) is obscured partly in the direction of a viewer by the orifice film layer, said orifice film layer defining said orifice that is smaller in cross-section than the cross sectional area of the reservoir (32; 632) and reducing the visible area of the reservoir; wherein the film layers have mutually differing thicknesses, with the orifice film layer having a thickness smaller than the reservoir film layer (30; 630); wherein the orifice film layer is formed by a laminate resin layer of a homogenous thickness that is laminated in the stack structure (630, 640); and wherein the reservoir film layer (30; 630) comprises a reservoir structure with support spacers supporting the orifice film layer.