Patent application EP20165945A (EP), filed 2020-03-26
Publication number: EP3730333A1
Title: DISPLAY ASSEMBLY FOR VEHICLE
Abstract: The present disclosure relates to a display assembly for a vehicle, wherein the display assembly comprises a light source provided in an instrument panel or on an instrument panel, for projecting to a windshield of the vehicle. In order to prevent light emitted by a light source of the display assembly from exiting to an undesired position, the present disclosure specifies that a film having a microstructure is applied onto the light source, wherein the microstructure is used for restricting an exit angle of light emitted by the light source at least in a longitudinal direction and a transverse direction of the vehicle. By means of the present disclosure, it is possible to avoid participants inside and outside the vehicle from being disturbed by light of the display assembly in a simply structured and easily implemented manner, and it is also possible to avoid reflection of the light on a side-window glazing. With the display assembly according to the present disclosure, it is also possible to omit opening a deep hole within an instrument panel of the vehicle or mounting a light shielding wall on the instrument panel. Further, the present disclosure also relates to a vehicle which comprises the display assembly according to the present disclosure, wherein the display assembly is disposed in or on an instrument panel and used for emitting light to a windshield.
IPC codes: B60K  35/    00            A I
G02B  27/    01            A I
G02F   1/  1335            A I
Claims: number: 1
text: A display assembly for a vehicle, wherein the display assembly comprises a light source provided in an instrument panel or on an instrument panel, for projecting to a windshield of the vehicle,
number: 2
text: The display assembly according to claim 1, characterized in that, the microstructure is an opaque or light-absorbing grid structure which forms a plurality of rectangular light transmissive portions, wherein the rectangle has both sides respectively oriented along a longitudinal direction and a transverse direction of the vehicle.
number: 3
text: The display assembly according to claim 2, characterized in that, the grid structure is formed by two layers of louver films, in which louvers are stacked orthogonally to each other.
number: 4
text: The display assembly according to claim 3, characterized in that, the two layers of louver films are constructed to be the same; or the two layers of louver films have mutually different louver pitches and/or mutually different louver heights.
number: 5
text: The display assembly according to claim 4, characterized in that, a pitch of the louvers oriented along a longitudinal direction of the vehicle is less than a pitch of the louvers oriented along a transverse direction of the vehicle; and/or a height of the louvers oriented along a longitudinal direction of the vehicle is more than a height of the louvers oriented along a transverse direction of the vehicle.
number: 6
text: The display assembly according to claim 3 or 4, characterized in that, the louver pitch and/or the louver height vary in an extension direction thereof, and in particular the louver pitch gradually decreases from a center of the light source to edge s of the light source and/or the louver height gradually increases from a center of the light source to edges of the light source.
number: 7
text: The display assembly according to claim 2, characterized in that, the grid structure is formed by a single layer of meshes.
number: 8
text: The display assembly according to claim 7, characterized in that, the single layer of meshes define a square or oblong shape.
number: 9
text: The display assembly according to claim 7 or 8, characterized in that, a mesh dimension of the single layer of meshes varies in an extension direction thereof, in particular the mesh dimension gradually decreases from a center of the light source to edge s of the light source.
number: 10
text: The display assembly according to claim 1, characterized in that, the microstructure is an opaque or light-absorbing pore plate structure which forms a plurality of round light transmissive portions.
number: 11
text: The display assembly according to claim 10, characterized in that, an aperture of the round light transmissive portions varies in an extension direction of the pore plate structure, in particular the aperture gradually decreases from a center of the light source to edges of the light source and/or a height of the pore plate gradually increases from a center of the light source to edges of the light source.
number: 12
text: The display assembly according to claim 1, characterized in that, the microstructure is an opaque or light-absorbing pore plate structure which forms a plurality of elliptical light transmissive portions, wherein a long axis of the ellipse is oriented along a longitudinal direction of the vehicle.
number: 13
text: The display assembly according to one of claims 1 to 12, characterized in that, the light source includes an LCD display, an LED display, an OLED display, a projection device; and/or the display assembly is a head-up display or an augmented reality display.
number: 14
text: The display assembly according to one of claims 1 to 13, characterized in that, a surface of the light source is constructed to be flat or curved.
number: 15
text: A vehicle, comprising the display assembly according to one of claims 1 to 14, wherein the display assembly is disposed in or on an instrument panel and used for emitting light to a windshield.
Office action: search_report, dated 2020-10-28
Rejection reasons: novelty_epc_54
inventive_step_epc_56
Prior art cited: ref_id: US2017097505A1
ref_type: patent
severity: background
ref_id: US8816578B1
ref_type: patent
severity: background
ref_id: DE102015220654A1
ref_type: patent
severity: background
ref_id: US2011074657A1
ref_type: patent
severity: background
ref_id: US2011074657
ref_type: patent
severity: novelty_destroying
ref_id: US8816578
ref_type: patent
severity: obviousness
ref_id: US2017097505
ref_type: patent
severity: novelty_destroying
ref_id: DE102015220654
ref_type: patent
severity: obviousness
Final disposition: pending (2020-10-28)