on the interior of the open shut end 120 a to fix the flexible film the exterior of the support part 120 b is formed so as to be able to be combined with the step created on the interior of the open shut end 120 a the film tray 100 may be used in a process chamber and then be transferred by a transferring robot not shown in a direction indicated in fig2 the film tray 100 may also be used in a laser induced thermal imaging process using a donor film for example a light to heat conversion layer lthc a transfer layer and the like may be formed while the base substrate of a flexible donor film is fixed on the support plate 110 and transferred to the deposition chamber referring to fig3 a to 3c the flexible film 210 is placed on the film tray 100 when the open end part 120 a is open one side of the flexible film 210 is inserted into the open shut part 120 a an external deviation prevention device 220 for example a removable weighted block fixes the flexible film 210 using pressure to prevent the flexible film 210 from folding or bending on the film tray 100 the flexible film 210 described here is film formed by soft materials such as polyethyleneterephthalate pet polyethersulfone pes.