阅读说明：本技术 用于平视显示器的复合玻璃板 (Composite glass pane for head-up display ) 是由 S.吉尔 V.舒尔茨 R.坎嫩吉泽 于 2019-10-25 设计创作，主要内容包括：本发明涉及一种用于平视显示器(HUD)的复合玻璃板(1),其具有上侧(O)和下侧(U),其至少包括外玻璃板(2)、内玻璃板(3)和布置在外玻璃板(2)和内玻璃板(3)之间的具有楔形横截面的拉伸的热塑性中间层(4),其中外玻璃板(2)和/或内玻璃板(3)具有楔形横截面。本发明还涉及一种用于制造这种复合玻璃板(1)的方法。(The invention relates to a composite glass pane (1) for a head-up display (HUD), having an upper side (O) and a lower side (U), comprising at least an outer glass pane (2), an inner glass pane (3) and a stretched thermoplastic interlayer (4) having a wedge-shaped cross section arranged between the outer glass pane (2) and the inner glass pane (3), wherein the outer glass pane (2) and/or the inner glass pane (3) have a wedge-shaped cross section. The invention also relates to a method for producing such a composite glass pane (1).)

1. Composite glass pane (1) for a head-up display (HUD), comprising at least

-an outer glass plate (2);

-an inner glass plate (3); and

-a stretched thermoplastic interlayer (4) with a wedge-shaped cross-section arranged between the outer glass pane (2) and the inner glass pane (3);

wherein the outer glass plate (2) and/or the inner glass plate (3) have a wedge-shaped cross section.

2. The composite glass pane (1) according to claim 1, wherein the wedge angle of the stretched thermoplastic interlayer (4) is between 0.01mrad and 0.15mrad, preferably between 0.01mrad and 0.1 mrad.

3. A composite glass pane (1) according to claim 1 or 2, wherein the sum (KS) of the wedge angle (K2) of the outer glass pane (2) and the wedge angle (K3) of the inner glass pane (3) is between 0.05 mrad and 0.9 mrad.

4. Composite glass pane (1) according to one of claims 1 to 3, wherein the wedge angle (K1) of the composite glass pane (1) is between 0.1 and 1.0 mrad, preferably between 0.15 and 0.75 mrad, particularly preferably between 0.3 and 0.7 mrad.

5. Composite glass pane (1) according to one of claims 1 to 4, wherein the thermoplastic interlayer (4) comprises at least polyvinyl butyral (PVB), Ethylene Vinyl Acetate (EVA), Polyurethane (PU) or mixtures or copolymers or derivatives thereof, preferably polyvinyl butyral (PVB), particularly preferably polyvinyl butyral (PVB) and a plasticizer.

6. Composite glass pane (1) according to one of claims 1 to 5, wherein the stretched thermoplastic interlayer (4) is a functional interlayer, in particular an interlayer with sound-insulating properties, an infrared radiation-reflecting interlayer, an infrared radiation-absorbing interlayer, a UV radiation-absorbing interlayer, an at least partially dyed interlayer and/or an at least partially coloured interlayer.

7. Composite glass pane (1) according to one of claims 1 to 6, wherein the outer glass pane (2) and/or the inner glass pane (3) are flat glass, in particular float glass manufactured in the float glass process.

8. Composite glass pane (1) according to one of claims 1 to 7, further comprising at least one additional intermediate layer (6) of substantially constant thickness, in particular an infrared radiation absorbing layer, an infrared radiation reflecting layer, a UV radiation absorbing layer, a tinted or dyed layer, a barrier layer or a combination of these.

9. Composite glass pane (1) according to one of claims 1 to 8, wherein the outer glass pane (2) and/or the inner glass pane (3) have an anti-reflection coating, an anti-adhesion coating, an anti-scratch coating, a photocatalytic coating, an electrically heatable coating, a sun protection coating and/or a low-emissivity coating.

10. A composite glass pane (1) according to claim 9, wherein the composite glass pane (1) is a vehicle glass, in particular a windscreen for a motor vehicle.

11. Projection device (10) for a head-up display (HUD) for displaying information for a viewer (11) in a HUD region (B), comprising at least:

-a composite glass pane (1) according to one of claims 1 to 10, and

-a projector (12) aimed at the HUD region (B).

12. Method for manufacturing a composite glass pane (1) for a head-up display (HUD) according to one of claims 1 to 10, comprising at least the following steps:

(a) providing an outer glass pane (2) and an inner glass pane (3), wherein the outer glass pane (2) and/or the inner glass pane (3) have a wedge-shaped cross section;

(b) providing a stretched thermoplastic intermediate layer (4) having a wedge-shaped cross-section;

(c) arranging the stretched thermoplastic interlayer (4) planarly between the outer glass pane (2) and the inner glass pane (3);

(d) the outer glass pane (2), the stretched thermoplastic interlayer (4) and the inner glass pane (3) are joined by lamination.

13. Method according to claim 12 for manufacturing a composite glass sheet (1) having a desired wedge angle (K1), the method comprising at least the steps of:

(a) determining a desired wedge angle (K1) of the composite glass sheet (1);

(b) providing an outer glass pane (2) and an inner glass pane (3), wherein the outer glass pane (2) and/or the inner glass pane (3) have a wedge-shaped cross section and the sum (KS) of the wedge angle (K2) of the outer glass pane (2) and the wedge angle (K3) of the inner glass pane (3) is smaller than the desired wedge angle (K1);

(c) determining a difference (KD) between the desired wedge angle (K1) and the sum (KS);

(d) providing a stretched thermoplastic intermediate layer (4) having a wedge-shaped cross-section, wherein the wedge angle (K4) of the stretched thermoplastic intermediate layer (4) corresponds to the difference (KD);

(e) arranging the stretched thermoplastic interlayer (4) planarly between the outer glass pane (2) and the inner glass pane (3); and

(f) the outer glass pane (2), the stretched thermoplastic interlayer (4) and the inner glass pane (3) are joined by lamination.

14. The method according to claim 12 or 13, further comprising the step of: at least one additional interlayer (6) of substantially constant thickness is provided and arranged independently of each other between the outer glass pane (2) and the stretched thermoplastic interlayer (4) or between the inner glass pane (3) and the stretched thermoplastic interlayer (4).

15. Use of a composite glass pane (1) according to one of claims 1 to 10 as a vehicle glass in a land, air or water vehicle, in particular in a motor vehicle, and in particular as a windscreen acting as a projection surface for a projection device of a head-up display.