CN115117274A

CN115117274A - Display device, manufacturing method thereof and vehicle-mounted display

Info

Publication number: CN115117274A
Application number: CN202210736290.0A
Authority: CN
Inventors: 刘明丽; 李旭
Original assignee: BOE Technology Group Co Ltd
Current assignee: BOE Technology Group Co Ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-09-27

Abstract

The present disclosure provides a display device, a method of manufacturing the same, and a vehicle-mounted display, the display device including: a display panel; the first shading layer is arranged on the light emergent side of the display panel and is provided with a plurality of first openings; set up in the first reflection stratum of display panel's light-emitting side, be equipped with a plurality of second openings, a plurality of first openings and a plurality of second openings all coincide with a plurality of first openings at least part in the orthographic projection of perpendicular to display panel orientation, each second opening and the transversal regular trapezoid that personally submits of the pixel opening pattern that corresponds first opening link up formation in the perpendicular to display panel orientation, the relative both sides open edge of pixel opening pattern in the first direction is the first waist and the second waist of regular trapezoid respectively, the first direction is on a parallel with display panel, first waist is for being close to display panel one side to keeping away from display panel one side to the first hypotenuse that extends to this pixel opening pattern central direction gradually. The display device, the manufacturing method thereof and the vehicle-mounted display have an anti-dazzle effect.

Description

Display device, manufacturing method thereof and vehicle-mounted display

Technical Field

The invention relates to the technical field of display, in particular to a display device, a manufacturing method thereof and a vehicle-mounted display.

Background

The OLED (Organic light emitting semiconductor) Display technology is a third generation Display technology that is subsequent to CRT and LCD Display, and has great potential in the fields of illumination and Display due to its advantages of low energy consumption, wide viewing angle, fast response speed, high definition, ultra-thin property, flexibility, self-luminescence property, etc., and is now widely applied in the fields of mobile phones, computers, televisions, vehicles, intelligent wearable devices, etc.

Due to the flexible characteristic of the OLED screen, the OLED screen can be made into various forms, such as a bending state, a rolling state, a folding state and the like, and therefore, the OLED screen is applied to the fields of vehicle-mounted instrument panel display and the like.

Disclosure of Invention

The embodiment of the disclosure provides a display device, a manufacturing method thereof and a vehicle-mounted display, which have an anti-glare effect.

The technical scheme provided by the embodiment of the disclosure is as follows:

an embodiment of the present disclosure provides a display device, including:

a display panel including a plurality of pixel regions;

the first light shielding layer is arranged on the light emitting side of the display panel, a plurality of first openings are arranged on the first light shielding layer, and at least part of orthographic projections of the plurality of first openings and the plurality of pixel areas in the direction vertical to the display panel are overlapped; and

the display panel comprises a first reflection layer arranged on the light outlet side of the display panel, wherein a plurality of second openings are arranged on the first reflection layer, the plurality of second openings and the plurality of first openings are at least partially overlapped in orthographic projection in the direction perpendicular to the display panel, the second openings and the corresponding first openings penetrate through to form pixel opening patterns, the cross section of the pixel opening patterns in the direction perpendicular to the display panel is in a regular trapezoid shape, two opposite side opening edges of the pixel opening patterns in the first direction are respectively a first waist and a second waist of the regular trapezoid shape, the first direction is parallel to the display panel, and the first waist is a first inclined edge which gradually extends towards the center direction of the pixel opening patterns from one side close to the display panel to one side far away from the display panel.

Illustratively, the inclination angle theta of the first oblique edge relative to the light emergent side of the display panel is in a range of 45 DEG & lt theta & lt 90 deg.

Illustratively, the first oblique side is flush with the edge of the pixel region on the side corresponding to the first waist at the end far away from the display panel;

the second waist is a straight edge perpendicular to the display panel and flush with the edge of the pixel region at the side corresponding to the second waist, or

The second waist is a second oblique edge which gradually extends towards the center direction of the pixel opening pattern from one side close to the display panel to one side far away from the display panel, the range of the inclination angle theta' of the second oblique edge relative to the light emergent side of the display panel is 0 & lttheta & lt 15 DEG, and one end, far away from the display panel, of the second oblique edge is flush with the edge, corresponding to the second waist, of the pixel area.

Illustratively, the pixel opening pattern is filled with an inorganic protective layer having a refractive index configured such that a refraction angle of light exiting from a light exit side of the display panel is smaller than a predetermined value.

Illustratively, the first light shielding layer is located between the first reflective layer and the display panel;

alternatively, the first reflective layer is located between the first light shielding layer and the display panel.

For example, when the first light shielding layer is located between the first reflective layer and the display panel, a liquid crystal dimming layer is further disposed on a side of the first reflective layer away from the first light shielding layer.

In an example, the display device further includes a second light-shielding layer disposed on a side of the first reflective layer away from the display panel, the second light-shielding layer is provided with a light-shielding pattern, the pixel regions have a first side and a second side opposite to each other in a second direction, the light-shielding pattern is disposed on the first side of each of the pixel regions, and the second direction crosses the first direction and is parallel to the display panel.

Illustratively, the light shielding pattern includes a plurality of light shielding bars, and the same row of the pixel regions arranged along the first direction shares the same light shielding bar at the first side;

or, the shading pattern comprises a plurality of shading line segments, at least one shading line segment is respectively arranged on the first side of each pixel area, and the shape of each shading line segment extends along the edge shape of the corresponding pixel area on the first side.

Illustratively, the display panel includes a pixel defining layer, the pixel area is defined by an opening pattern on the pixel defining layer, wherein a cross section of the opening pattern on the pixel defining layer in the first direction is an inverted trapezoid, two opposite side opening edges of the opening pattern on the pixel defining layer in the first direction are respectively a third waist and a fourth waist of the inverted trapezoid, the third waist and the first waist are located on the same side of the opening pattern, the third waist is a second oblique side gradually extending to a center direction of the opening pattern from a side close to the light emitting side to a side far away from the light emitting side, and a second reflective layer is disposed on the third waist and the fourth waist.

Illustratively, the inclination angle alpha of the second oblique edge relative to the light-emitting side of the display panel is in a range of 90 degrees and less than 180 degrees.

Illustratively, the first reflective layer is a metal reflective layer having a reflectivity of greater than or equal to 85%, and a film thickness of greater than or equal to 20 nm.

Illustratively, the display area of the display device includes a first side and a second side opposite to each other in the first direction, the first side is a side where the first waist is located, the second side is a side where the second waist is located, the display area of the display device is divided into a plurality of sub-areas from one side of the first side to the second side, and an inclination angle θ of the first oblique side in the sub-areas gradually decreases from the first side to the second side; and/or the film thicknesses of the first shading layer and the first reflecting layer in the sub-area are gradually reduced.

The embodiment of the disclosure also provides an on-vehicle display, which comprises the display device.

The embodiment of the present disclosure also provides a manufacturing method of a display device, for manufacturing the display device as described above, the method including the steps of:

manufacturing the display panel;

forming a first shading material layer and a first reflecting material layer on the light emergent side of the display panel;

etching the first shading material and the first reflecting material layer at positions corresponding to the pixel regions to form opening regions;

and engraving at one side of the opening area corresponding to the first waist to form the first bevel edge.

Illustratively, after the first oblique side is formed by etching at a side of the opening region corresponding to the first waist, the method further comprises:

forming a second light shielding material layer;

and patterning the second light shielding material layer to form a second light shielding layer with the light shielding pattern.

The beneficial effects brought by the embodiment of the disclosure are as follows:

in the above solution, the reflective layer and the first light shielding layer are disposed on the light emitting side of the display panel, and the pixel opening pattern formed on the reflective layer and the first light shielding layer is opposite to the pixel area on the display panel, the pixel opening pattern formed on the reflective layer and the first light shielding layer is a regular trapezoid, and the first waist thereof is a first oblique side, that is, one side edge of the pixel opening pattern is an oblique side, so that a part of the light normally emitted from the pixel area of the display panel can be reflected by the first oblique side of the reflective layer and focused toward the predetermined direction, another part of the light can be absorbed by the first light shielding layer, and another part of the light can be emitted through the pixel opening pattern, thereby improving the bad phenomenon existing in the display device in the whole light emitting state, for example, when the display device is applied to a vehicle-mounted display, the first oblique side can focus a part of the light toward the driver, the left direction of the whole instrument panel is converged, so that the effect of eliminating glare generated by the front glass window can be realized, and the display content of the vehicle-mounted display can not be influenced by the copilot and the normal observation of the back row personnel.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of a first embodiment of a display device provided in the present disclosure, in which a liquid crystal dimming layer is not provided;

fig. 2 is a schematic cross-sectional structure diagram of a first embodiment of a display device provided by the present disclosure, in which a liquid crystal dimming layer is disposed;

fig. 3 is a schematic cross-sectional structure diagram of a second embodiment of a display device provided by the present disclosure;

fig. 4 to 9 are top views of several exemplary embodiments of a second light shielding layer in a first embodiment of a display device provided by the present disclosure;

fig. 10 is a schematic cross-sectional structure diagram of a third embodiment of a display device provided by the present disclosure;

fig. 11 is a schematic structural diagram illustrating a manufacturing step of a first embodiment of a display device provided in the present disclosure;

fig. 12 is a schematic view of an installation position of the display device provided by the present disclosure when applied to an in-vehicle display;

fig. 13 is a schematic view of a partition of a display area in some embodiments of display devices provided by the present disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Before detailed description of the display device, the method for manufacturing the same, and the in-vehicle display provided by the embodiments of the present disclosure, it is necessary to perform the following description of the related art: in the related art, in some cases, since the OLED screen emits light in a full-scale manner, adverse effects may occur. For example, when an OLED screen is applied to an instrument panel in an in-vehicle display, glare may be caused to a front windshield of a vehicle, thereby affecting driving.

In order to solve the above problems, embodiments of the present disclosure provide a display device, a method of manufacturing the same, and a vehicle-mounted display, which can improve the above disadvantages.

Fig. 1 to 3 and 11 are schematic structural diagrams of several exemplary embodiments of a display device provided by the present disclosure.

Referring to fig. 1 to 4 and fig. 11, a display device provided in an embodiment of the present disclosure includes:

a display panel 10, the display panel 10 including a plurality of pixel regions S, each of the pixel regions S including a plurality of pixel regions S';

a first light shielding layer 20 disposed on the light emitting side of the display panel 10, wherein a plurality of first openings are disposed on the first light shielding layer 20, and at least a part of orthographic projections of the plurality of pixel regions S in a direction perpendicular to the display panel 10 are overlapped with the plurality of first openings; and

the first reflection layer 30 is disposed on the light exit side of the display panel 10, the first reflection layer 30 is provided with a plurality of second openings, the plurality of second openings and the plurality of first openings at least partially overlap in an orthographic projection in a direction perpendicular to the display panel 10, a cross section of each second opening and a corresponding pixel opening pattern 40 formed by penetrating through the first opening in the direction perpendicular to the display panel 10 is a regular trapezoid, two opposite side opening edges of the pixel opening pattern 40 in a first direction X are a first waist 41 and a second waist 42 of the regular trapezoid respectively, the first direction X is parallel to the display panel 10, and the first waist 41 is a first oblique side gradually extending from a side close to the display panel 10 to a side far away from the display panel 10 toward a center direction of the pixel opening pattern 40.

The cross section of the pixel opening pattern 40 in the direction perpendicular to the display panel 10 is a regular trapezoid, where a side of the pixel opening pattern 40 away from the display panel 10 is an upper bottom, a side close to the display panel 10 is a lower bottom, the upper bottom is short, and the lower bottom is long, and two side walls of the pixel opening pattern 40 opposite in the first direction X are a first waist 41 and a second waist 42 of the regular trapezoid. The first waist 41 is a first oblique side extending from a side close to the display panel 10 to a side far from the display panel 10 to a center direction of the pixel opening pattern 40, that is, a side wall of the two opposite side walls of the pixel opening pattern 40 in the first direction X corresponding to the first waist 41 is an oblique surface, so that light emitted from the pixel region S on the display side of the display panel 10 can be reflected by being incident on the oblique surface. It should be noted that the center of the pixel opening pattern 40 refers to the middle position of the pixel opening pattern in the first direction X, as shown by the position a in fig. 1.

In the above-described embodiment, by providing the reflective layer and the first light-shielding layer 20 on the light-emitting side of the display panel 10, and the pixel opening pattern 40 formed on the reflective layer and the first light-shielding layer 20 is opposite to the pixel region S on the display panel 10, and the pixel aperture patterns 40 formed on the reflective layer and the first light-shielding layer 20 are in a regular trapezoid shape, the first waist 41 thereof is a first oblique side, that is, one side edge of the pixel opening pattern 40 is formed in a diagonal shape, so that a part of the light normally emitted from the pixel region S of the display panel 10 can be condensed toward a predetermined direction by being reflected by the first diagonal edge of the reflective layer, the predetermined direction is a reflection direction from the first oblique side, and another part of the light can be shielded and absorbed by the first light shielding layer 20, and another part of the light can exit through the pixel opening pattern 40, so that the bad phenomenon of the display device in the whole light emitting process can be improved. For example:

as shown in fig. 12, when the display device is applied to a vehicle-mounted display, the first direction X may substantially correspond to a width direction of a vehicle, i.e., a direction from a driving seat to a passenger seat, the display device may be mounted in the direction shown in fig. 12, the first waist 41 may be disposed at a side close to the passenger seat, and the second waist 42 may be disposed at a side close to the driving seat, so that light emitted from the pixel region S may converge a portion of the light toward the driving seat, i.e., a left direction of the entire instrument panel, thereby achieving an anti-glare effect.

In addition, the first direction X is parallel to the display panel 10, which means that when the display panel 10 is a flat display panel, the first direction X is a straight line direction parallel to the flat surface; when the display panel 10 is a curved display panel, the first direction is a curved direction parallel to the curved surface.

In order to explain the display device provided by the present disclosure in more detail, the following is an exemplary explanation of the display device provided by the present disclosure.

In some exemplary embodiments, the display panel 10 may be an OLED display panel. Referring to fig. 1, the display panel 10 may include a substrate, a display unit formed on the substrate, and an encapsulation layer 15 encapsulating the display unit, where the display unit may include a pixel defining layer 11, a first electrode layer 12, an organic light emitting layer 13, and a second electrode layer 14, an opening pattern on the pixel defining layer 11 defines the pixel region S, the first electrode layer 12 and the organic light emitting layer 13 are located in the pixel region S, the second electrode layer 14 entirely covers the organic light emitting layer 13 and the pixel defining layer 11 on a side away from the substrate, and the encapsulation layer 15 is located on a side of the second electrode layer 14 away from the substrate. The light emitting side of the display panel 10 may be a side of the encapsulation layer 15 away from the substrate.

The display panel 10 may further include a display driving layer, and the display driving layer may include a thin film transistor, a driving signal line, a driving circuit, and the like. In addition, the display panel 10 may not be limited to the OLED display panel.

The first reflective layer 30 may be a metal reflective layer made of a metal having a reflective function, and particularly, the first reflective layer 30 may be a metal reflective layer having a reflectivity of 85% or more. For example, any suitable metal having a reflective function such as Mg, Ag, Al, Mo, etc. It is understood that the first reflective layer 30 is not limited to metal material.

Fig. 1 is a schematic cross-sectional structure diagram of some embodiments of a display device provided by the present disclosure.

As shown in fig. 1, in the present embodiment, the first light shielding layer 20 may be located between the first reflective layer 30 and the display panel 10.

Referring to fig. 1, a cross section of a pixel opening pattern 40 formed by penetrating through a first opening on the first light shielding layer 20 and a second opening on the first reflective layer 30 in a direction perpendicular to the display panel 10 is a regular trapezoid, two opening edges of the pixel opening pattern 40 opposite to each other in a first direction X are a first waist 41 and a second waist 42 of the regular trapezoid, respectively, the first direction X is parallel to the display panel 10, and the first waist 41 is a first oblique side gradually extending from a side close to the display panel 10 to a side away from the display panel 10 toward a center of the pixel opening pattern 40.

Still referring to fig. 1, taking the size of the pixel area S' in the pixel area S as 30-40 μm as an example, the vertical height from the pixel area S to the first reflective layer 30 in the direction perpendicular to the substrate is about 14 μm, so that most of the light emitted from the pixel area S can be converged by the first reflective layer 30 at the second waist 42 toward a predetermined direction and reflected to enter the human eye, and a small part of the light is absorbed by the first light shielding layer 20, and a small part of the light is reflected into the pixel area S and absorbed by the pixel defining layer 11.

The inventors have found that, in order to make the light emitted from the pixel region S more receivable by human eyes, the thickness of the first reflective layer 30 may be greater than or equal to 20nm, and the inclination angle θ of the first oblique side with respect to the light emitting side of the display panel 10 may be 45 ° ≦ θ < 90 °. Here, the inclination angle θ of the first oblique side with respect to the light emitting side of the display panel 10 refers to an acute angle between the first oblique side and the light emitting side of the display panel 10.

It is understood that the thickness of the first reflective layer 30 and the tilt angle θ of the first oblique side may be in a range without limitation. In practical application, the design can be reasonably carried out according to the size specification and the like of an actual product.

Further, in the present embodiment, exemplarily, as shown in fig. 1, the pixel opening pattern 40 is filled with an inorganic protective layer 50, and a refractive index of the inorganic protective layer 50 is configured such that a refraction angle of light emitted from a light emitting side of the display panel 10 is smaller than a predetermined value.

With the above-mentioned scheme, the inorganic protective layer 50 can perform a planarization function to fill the pixel opening pattern 40, and the material thereof should be selected from a material that does not affect the light transmitted by the pixel opening pattern 40.

In the above scheme, the predetermined value may be 0 or a small value to reduce an adverse effect on the transmission of light through the pixel opening pattern 40. For example, the light transmittance of the inorganic protective layer 50 may be substantially the same as the light transmittance of the encapsulation layer 15. Wherein the inorganic protective layer 50 may be formed on the pixel opening pattern 40 by a deposition process and flow the pixel opening pattern 40.

In addition, the first opening on the first light shielding layer 20 corresponds to the pattern of the pixel region S, and can play a role in limiting the light emitting range and absorbing light, thereby reducing the front light emission of the display device. Thus, when the display device is applied to a vehicle-mounted display, the path of emergent light similar to the window glass can be reduced to a certain extent, and the glare brightness is reduced. The first light shielding layer 20 should be made of a material that can shield light and absorb light. For example, the first light-shielding layer 20 may be made of a black matrix material.

In addition, in the present embodiment, for example, as shown in fig. 1,

the first oblique side is flush with the edge of the pixel region S on the side corresponding to the first waist 41 at the end away from the display panel 10. The second waist 42 is a straight edge perpendicular to the display panel 10 and flush with an edge of the pixel region S at a side corresponding to the second waist 42, or the second waist 42 is a second oblique edge gradually extending from a side close to the display panel 10 to a side far from the display panel 10 toward a center of the pixel opening pattern 40, and an inclination angle θ 'of the second oblique edge with respect to a light emitting side of the display panel 10 is in a range of 0 < θ' < 15 °.

It should be noted that, the inclination angle θ' of the second oblique side with respect to the light emitting side of the display panel 10 refers to an acute angle between the second oblique side and the light emitting side of the display panel 10.

Optionally, an inclination angle θ' of the second oblique side with respect to the light exit side of the display panel 10 is smaller than an inclination angle θ of the first oblique side with respect to the light exit side of the display panel 10, and the difference range is 40 ° to 50 °. For example: the difference between the angle of inclination theta' of the second oblique side with respect to the light exit side of the display panel 10 and the angle of inclination theta of the first oblique side with respect to the light exit side of the display panel 10 is 45 deg.. By the design, the light emitted from the pixel region S can be reflected by the second inclined edge 42 and then converged towards the driver direction through the first inclined edge 41, namely the left direction of the whole instrument panel, so that the anti-glare purpose is achieved.

In the above solution, the pixel aperture pattern 40 formed by penetrating the first aperture and the second aperture is an aperture with a cross section similar to a right trapezoid, and the first waist 41 and the second waist 42 thereof are respectively flush with the edge of the pixel region S, i.e. as shown by the dotted line in the figure, so as to ensure that the light-emitting area of the pixel region S is not reduced due to the arrangement of the first reflective layer 30 and the first light-shielding layer 20, and ensure that the emitted light of the pixel region S is emitted along an ideal path. In this embodiment, the first waist 41 is flush with the edge of the pixel region S, that is, the edge of the first reflective layer 30 closest to the center of the pixel opening pattern 40 is flush with the opening edge of the pixel defining layer 11.

In addition, in this embodiment, for example, as shown in fig. 2, when the first light-shielding layer 20 is located between the first reflective layer 30 and the display panel 10, a liquid crystal light-modulating layer 80 is further disposed on a side of the first reflective layer 30 away from the first light-shielding layer 20, and the liquid crystal light-modulating layer 80 is configured to change the transmittance of light emitted from each of the pixel opening patterns 40 by controlling a liquid crystal deflection state.

With the above arrangement, by providing the liquid crystal dimming layer 80, the liquid crystal deflection can be controlled to control whether the light emitted from the pixel region S is totally emitted or partially emitted. That is, the liquid crystal dimming layer 80 is in a state where all light rays are emitted, and is in a transparent state, and the display device is in mirror display; when the liquid crystal dimming layer 80 partially emits light, the display device displays normally. Therefore, the mirror display or normal display of the display device can be realized by regulating and controlling the liquid crystal dimming layer 80 according to actual needs.

As shown in fig. 1 and 2, when the display device is applied to an in-vehicle display, the first direction X may be a vehicle width direction, i.e., a direction from a driver seat to a passenger seat. The first waist 41 is located at a side close to a driver, and the second waist 42 is located at a side close to a passenger side, so that light emitted from the pixel region S is collected towards the driver by reflection of the first reflective layer 30, and due to the first light shielding layer 20 below the first reflective layer 30, front light emission is reduced, and the emergent light path of the windshield is reduced to a certain extent, so that the brightness of glare is reduced.

Here, the liquid crystal light modulation layer 80 may be any suitable liquid crystal panel structure capable of controlling the light transmission state thereof by controlling the liquid crystal deflection. For example, the liquid crystal dimming layer 80 may include a common electrode, a pixel electrode, a liquid crystal layer between the common electrode and the pixel electrode, a driving circuit for driving the common electrode and the pixel electrode, and the like.

In addition, in the present embodiment, for example, as shown in fig. 4 to 9, the display device further includes a second light shielding layer 60 disposed on a side of the first reflective layer 30 away from the display panel 10. Taking the embodiment shown in fig. 1 as an example, when the first light shielding layer 20 is located between the first reflective layer 30 and the display panel 10, the second light shielding layer 60 is located on a side of the liquid crystal control layer 80 away from the display panel 10. The second light shielding layer 60 is provided with light shielding patterns, the pixel regions S have a first side and a second side opposite to each other in a second direction Y, the light shielding patterns are disposed on the first side of each of the pixel regions S, and the second direction Y intersects with the first direction X and is parallel to the display panel 10.

The second direction Y is a direction crossing the first direction X and parallel to the display panel 10, for example, the second direction Y is perpendicular to the first direction X.

In the above solution, taking the application of the display device to an on-vehicle display as an example, the first direction X may be a vehicle width direction, i.e., a direction from a driving seat to a passenger seat. The first waist 41 is located closer to the driver, and the second waist 42 is located closer to the passenger side. The second direction Y may be a vehicle length direction, i.e., a front-to-rear direction. Taking the vehicle-mounted display as an example, the first side may be a side of the display device near the front of the vehicle. Taking the vertical setting of the vehicle-mounted display as an example, the first side may be the side of the display device facing upward. By arranging the light shielding pattern on the first side of each pixel region S, light emitted from the corresponding pixel region S to the first side (i.e., upward or forward of the vehicle) can be absorbed, while light emitted from another pixel region S located on the first side of the pixel region S to the second side (i.e., downward or rearward of the vehicle) is not affected. In this way, since most of the light is concentrated on the side of the first direction X where the second waist 42 is located, i.e., the light received by the driver on the left side is strong, while the light on the front and second sides (i.e., the right side) of the display device is slightly reduced, the glare can be completely solved.

Further, exemplarily, as shown in fig. 12 and 13, the display area of the display device includes a first side and a second side opposite to each other in the first direction X, the first side is a side where the first waist 41 is located, the second side is a side where the second waist 42 is located, the display area of the display device is divided into a plurality of sub-areas from the first side to the second side, and an inclination angle θ of the first oblique side in the sub-area is gradually decreased from the first side to the second side; and/or the film thickness of the first light shielding layer 20 and the first reflective layer 30 in the sub-region gradually decreases from the first side to the second side.

For example, as shown in fig. 13, the display area includes a first sub-area a1, a second sub-area a2, and a third sub-area A3 arranged in sequence from the first side to the second side, wherein an inclination angle θ of a first oblique side in the pixel opening pattern 40 corresponding to each pixel area S in the first sub-area a1, the second sub-area a2, and the third sub-area A3 is gradually reduced, and/or a film thickness of the first light shielding layer 20 and the first reflective layer 30 is gradually reduced.

For example, the inclination angle θ of the first oblique side in the first sub-region a1 is 55 to 60 °, the film thickness of the first light shielding layer 20 is 20nm, and the film thickness of the first reflective layer 30 is 0.3 μm; the inclination angle theta of the first oblique side in the second sub area A2 is 50-55 degrees, the film thickness of the first shading layer 20 is 25-30 nm, and the film thickness of the first reflection layer 30 is 0.3-0.7 mu m; the inclination angle theta of the first oblique side in the third sub-area A3 is 55-60 degrees, the film thickness of the first light shielding layer 20 is 30-40 nm, and the film thickness of the first reflection layer 30 is 0.7-1.2 mu m.

By adopting the scheme, when the display device is applied to the vehicle-mounted display, the inclination angle theta of the second bevel edge in each sub-area from one side of the copilot to one side of the driving position is gradually reduced, and/or the film thickness of the first light shielding layer 20 and the film thickness of the first reflection layer 30 are gradually reduced, so that the emergent light of the pixel area S can be better converged to the driving position, and a better anti-dazzling effect is achieved.

The pixel structure of the display panel 10 may be, but is not limited to, GGRB, blue diamond, Real RGB, etc.

In this embodiment, for example, the light shielding pattern may include a plurality of light shielding bars 61, and the pixel regions S of the same row arranged along the first direction X share the same light shielding bars 61 on the first side.

Taking the pixel structure shown in fig. 4 as a GGRB pixel structure as an example, the pixel region S includes a plurality of pixel regions S' arranged in an array, wherein the plurality of pixel regions S are arranged in a plurality of rows in the first direction X, and the first sides of the pixels in the same row share the same light-shielding strip 61. Each of the light-shielding bars 61 may be linear.

Taking the example that the pixel structure shown in fig. 5 is a blue diamond pixel structure, the pixel region S includes a plurality of pixel regions S' distributed in an array, wherein the plurality of pixel regions S are arranged in a plurality of rows in the first direction X, and first sides of the pixels in the same row share the same light-shielding strip 61. Each of the light-shielding bars 61 may be linear.

Taking the pixel structure shown in fig. 6 as a Real RGB pixel structure as an example, the pixel region S includes a plurality of pixel regions S' distributed in an array, wherein the plurality of pixel regions S are arranged in a plurality of rows in the first direction X, and the first sides of the pixels in the same row share the same light-shielding strip 61. Each of the light-shielding bars 61 may be linear.

In the above exemplary embodiment, each row of pixels shares the same one of the light-shielding bars 61 only on the first side.

In other embodiments, the structure of the light blocking pattern is not limited thereto. For example:

referring to fig. 7 to 9, in other exemplary embodiments of the present disclosure, the light shielding pattern includes a plurality of light shielding line segments, at least one light shielding line segment 62 is disposed on a first side of each of the pixel regions S, and the shape of the light shielding line segment 62 extends along the edge shape of the corresponding pixel region S on the first side.

Taking the pixel structure shown in fig. 7 as a GGRB pixel structure as an example, the pixel region S includes a plurality of pixel regions S' and the plurality of pixel regions S are distributed in an array, wherein the light-shielding pattern includes a plurality of light-shielding line segments 62, at least one light-shielding line segment 62 is respectively disposed on a first side of each pixel region S, and the shape of the light-shielding line segment 62 extends along with the edge shape of the corresponding pixel region S on the first side, that is, the shape is the same as the edge shape of the pixel region S on the first side.

Taking the example that the pixel structure shown in fig. 8 is a blue diamond pixel structure, the pixel region S includes a plurality of pixel regions S', the plurality of pixel regions S are distributed in an array, wherein the light-shielding pattern includes a plurality of light-shielding line segments 62, at least one light-shielding line segment 62 is respectively disposed on a first side of each pixel region S, and the shape of the light-shielding line segment 62 extends along with the edge shape of the corresponding pixel region S on the first side, that is, the shape is the same as the edge shape of the pixel region S on the first side.

Taking the pixel structure shown in fig. 9 as a Real RGB pixel structure as an example, the pixel region S includes a plurality of pixel regions S' distributed in an array, wherein the light-shielding pattern includes a plurality of light-shielding line segments 62, at least one light-shielding line segment 62 is respectively disposed on a first side of each pixel region S, and the shape of the light-shielding line segment 62 extends along with the edge shape of the corresponding pixel region S on the first side, that is, the shape is the same as the edge shape of the pixel region S on the first side.

In addition, in the present embodiment, the thickness of the second light shielding layer 60 may be 0.5 to 1 μm, and the line width of the light shielding bars 61 or the light shielding line width may be about 0.5 μm.

The second light-shielding layer 60 may be made of a light-shielding and light-absorbing material, for example, the second light-shielding layer 60 is made of a black matrix material.

The following explains a manufacturing method of a display device provided by the present disclosure, including the steps of:

step S01, manufacturing the display panel 10, wherein the display panel 10 includes a plurality of pixel regions S;

step S02, forming a first light shielding material layer and a first reflective material layer on the light emitting side of the display panel 10;

step S03, please refer to fig. 11, etching the first light shielding material 20 'and the first reflective material layer 30' at the positions corresponding to the pixel regions S to form opening regions, wherein the opening regions completely coincide with the orthographic projections of the pixel regions S on the substrate, i.e. the shapes and the sizes of the opening regions and the pixel regions S are the same;

step S04, forming the first oblique side by etching at the side of the opening area corresponding to the first waist 41.

In some embodiments, when the first light shielding layer 20 is located between the first reflective layer 30 and the display panel 10, after the step S04, the method further includes:

step S05 is to form a liquid crystal light modulation layer 80 on the first reflective metal layer, where the liquid crystal light modulation layer 80 is used to change the transmittance of the light emitted from each of the pixel opening patterns 40 by controlling the liquid crystal deflection state.

For example, the step S05 may specifically include:

step S051, forming a display driving circuit layer and a pixel defining layer 11, wherein the opening on the pixel defining layer 11 defines a pixel area S;

step S052 of forming a pixel electrode, wherein the pixel electrode may be a first ITO layer patterned to remove portions outside the pixel region S while leaving a pattern inside the pixel region S;

step S053 of forming an organic light emitting layer 13 in the pixel region S;

step S054, forming a common electrode layer on the organic light emitting layer 13 and the pixel defining layer 11.

In the above method, the patterning process in each step may be a patterning process such as etching.

Further, in this embodiment, for example, when the first light shielding layer 20 is located between the first reflective layer 30 and the display panel 10, after step S05, the method may further include:

step S06, forming a second light-shielding material layer on a side of the liquid crystal light-modulating layer 80 away from the display substrate;

step S07, patterning the second light-shielding material layer to form a second light-shielding layer 60 having the light-shielding pattern, wherein the pixel areas S have a first side and a second side opposite to each other in a second direction Y, the light-shielding pattern is disposed on the first side of each of the pixel areas S, and the second direction Y intersects with the first direction X and is parallel to the display panel 10.

In addition, fig. 3 is a schematic structural diagram of a display device provided in other exemplary embodiments of the present disclosure.

Referring to fig. 3, the present embodiment is different from the embodiment shown in fig. 1 in that in the present embodiment, the first reflective layer 30 is located between the first light shielding layer 20 and the display panel 10, and the second light shielding layer 60 is directly formed on a side of the first light shielding layer 20 away from the display panel 10.

That is, in this embodiment, the positions of the first reflective layer 30 and the first light-shielding layer 20 to be stacked are switched from top to bottom. In this way, compared to the embodiment shown in fig. 1, since the first light shielding layer 20 is located on the side of the first reflective layer 30 away from the display panel 10, and can perform the functions of light absorption and light shielding, the light emitted from the pixel opening pattern 40 will be less than that in the embodiment shown in fig. 1, that is, the light transmittance will be reduced, but the liquid crystal light modulation layer 80 may not be required to be provided in this embodiment.

Accordingly, in this embodiment, as shown in fig. 3, positions of the first opening and the second opening are exchanged up and down, and an end of the first oblique side of the pixel opening pattern 40 formed by penetrating the first opening and the second opening, which is far away from the display panel 10, is flush with an edge of the pixel area S on a side corresponding to the first waist 41, that is, an edge of the first light shielding layer 20 on the side of the first waist 41 is flush with an edge of the pixel defining layer 11.

Meanwhile, correspondingly, in the method for manufacturing the display device in the present embodiment, when the first reflective layer 30 is located between the first light shielding layer 20 and the display panel 10, after step S04, the method further includes:

step S06, forming a second light-shielding material layer on a side of the first light-shielding layer 20 away from the display substrate;

Fig. 10 is a schematic structural view of a display device provided in another exemplary embodiment of the present disclosure.

As shown in fig. 10, in the present embodiment, compared with the embodiment shown in fig. 1, the difference is that, in the present embodiment, the display panel 10 includes a pixel defining layer 11, an opening pattern on the pixel defining layer 11 defines the pixel region S, wherein the cross section of the opening pattern on the pixel defining layer 11 in the first direction X is an inverted trapezoid, the two side opening edges of the opening pattern on the pixel defining layer 11 opposite in the first direction X are respectively the third waist 111 and the fourth waist 112 of the inverted trapezoid, the third waist 111 and the first waist 41 are located on the same side of the opening pattern, the third waist 111 is a second oblique side gradually extending from the side close to the light-emitting side to the side far from the light-emitting side toward the center of the opening pattern, and the third waist 111 and the fourth waist 112 are provided with a second reflective layer 70.

In this embodiment, with the above-mentioned scheme, the cross section of the aperture pattern on the pixel defining layer 11 has an inverted trapezoid shape, a second oblique side is formed on a side corresponding to the first waist 41, that is, the third waist 111 forms the second oblique side, a straight side is formed on a side corresponding to the second waist 42, or an oblique angle of the first waist 41 with respect to the light exit side of the display panel 10 is smaller than 15 °, and an edge of the first waist 41 of the first light shielding layer 20 is flush with an edge of the third waist 111 of the pixel defining layer 11. Thus, the cross section of the opening pattern on the pixel defining layer 11 is in an inverted trapezoid shape, while the cross section of the corresponding pixel opening pattern 40 above the encapsulating layer 15 is in a regular trapezoid shape, most of the light emitted from the pixel region S is directly emitted, and part of the light is incident on the first oblique edge and is emitted by reflecting part of the light; another part is reflected to the second oblique side of the pixel defining layer 11, wherein the light reflected to the pixel defining layer 11 is absorbed (the pixel defining layer 11 absorbs best because the light received there will exit from the pixel regions S' of other colors if reflected multiple times to cause color mixing), and another part is reflected to the second reflecting layer 70 inside the second oblique side to finally exit again by reflection, so that the exiting light beam can be increased.

Taking the size of the pixel region S' as 30 to 40 μm as an example, the vertical height from the pixel region S to the first light shielding layer 20 and the side of the first reflective layer 30 far away from the display panel 10 is about 14 μm, so that most of the light emitted from the pixel region S to the second oblique side can be reflected out through the metal and enter human eyes, as shown in fig. 10.

In order to receive more light emitted from the pixel region S by the human eye, the first oblique side has an angle in a range of 45 ° ≦ θ < 90 °, and the second oblique side has an inclination angle α in a range of 90 ° ≦ α < 180 ° with respect to the light-emitting side of the display panel 10.

In addition, in this embodiment, the manufacturing method of the display device is different from the manufacturing method of the display device of the embodiment shown in fig. 1 in that a step of forming the second reflective layer 70 is added when the display panel 10 is manufactured in step S01.

In addition, fig. 10 only illustrates that the second oblique side is provided on the pixel defining layer 11 and the second reflective layer 70 is additionally provided when the first reflective layer 30 is located on the side of the first light shielding layer 20 away from the display panel 10; in other embodiments not shown, when the first reflective layer 30 is located on the side of the first light shielding layer 20 close to the display panel 10, the pixel defining layer 11 may also be provided with the second oblique side, and the second reflective layer 70 is additionally provided. This will not be described in detail.

In addition, the embodiment of the disclosure also provides a vehicle-mounted display which comprises the display device provided by the embodiment of the disclosure.

It should be noted that the display device provided by the embodiment of the present disclosure may not only be applied to a vehicle-mounted display, but also be applied to other occasions.

The following points need to be explained:

(1) the drawings of the embodiments of the disclosure only relate to the structures related to the embodiments of the disclosure, and other structures can refer to the common design.

(2) For purposes of clarity, the thickness of layers or regions in the figures used to describe embodiments of the present disclosure are exaggerated or reduced, i.e., the figures are not drawn on a true scale. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "under" another element, it can be "directly on" or "under" the other element or intervening elements may be present.

(3) Without conflict, embodiments of the present disclosure and features of the embodiments may be combined with each other to arrive at new embodiments.

The above are only specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and the scope of the present disclosure should be subject to the scope of the claims.

Claims

1. A display device, comprising:

a display panel including a plurality of pixel regions;

set up in the first reflection stratum of display panel's light-emitting side, be equipped with a plurality of second openings on the first reflection stratum, a plurality of second openings with a plurality of first openings are at the perpendicular to at least partial coincidence of orthographic projection in the display panel direction, and each the second opening with correspond the pixel opening pattern that first opening link up and form is at the perpendicular to the cross section in the display panel direction is the regular trapezoid, the relative two side opening edge of pixel opening pattern in the first direction does respectively be the first waist and the second waist of regular trapezoid, the first direction is on a parallel with display panel, just first waist is for being close to from display panel one side is to keeping away from display panel one side is to the first hypotenuse that this pixel opening pattern central direction of this extends gradually.

2. The display device according to claim 1,

the value range of the inclination angle theta of the first bevel edge relative to the light emergent side of the display panel is more than or equal to 45 degrees and less than 90 degrees.

3. The display device according to claim 1,

the end, far away from the display panel, of the first bevel edge is flush with the edge, corresponding to the first waist, of the pixel area;

The second waist is a second oblique side which gradually extends towards the center direction of the pixel opening pattern from one side close to the display panel to one side far away from the display panel, the range of the inclination angle theta 'of the second oblique side relative to the light emergent side of the display panel is 0 & lt theta' & lt 15 DEG, and one end, far away from the display panel, of the second oblique side is flush with the edge, corresponding to the second waist, of the pixel area.

4. The display device according to claim 1,

the pixel opening pattern is filled with an inorganic protective layer having a refractive index configured such that a refraction angle of light exiting from a light exit side of the display panel is smaller than a predetermined value.

5. The display device according to claim 1,

the first shading layer is positioned between the first reflecting layer and the display panel;

6. The display device according to claim 5,

when the first light shielding layer is positioned between the first reflecting layer and the display panel, a liquid crystal dimming layer is further arranged on one side, far away from the first light shielding layer, of the first reflecting layer.

7. The display device according to claim 1,

the display device further comprises a second light shielding layer arranged on one side, far away from the display panel, of the first reflection layer, light shielding patterns are arranged on the second light shielding layer, the pixel areas are provided with a first side and a second side which are opposite to each other in a second direction, the light shielding patterns are arranged on the first sides of the pixel areas, and the second direction is crossed with the first direction and is parallel to the display panel.

8. The display device according to claim 7,

the shading pattern comprises a plurality of shading strips, and the same row of the pixel regions arranged along the first direction share the same shading strip on the first side;

9. The display device according to claim 1,

the display panel comprises a pixel defining layer, wherein an opening pattern on the pixel defining layer is defined in the pixel area, the cross section of the opening pattern on the pixel defining layer in the first direction is in a reversed trapezoid shape, two opposite side opening edges of the opening pattern on the pixel defining layer in the first direction are respectively a third waist and a fourth waist of the reversed trapezoid shape, the third waist and the first waist are located on the same side of the opening pattern, the third waist is a second inclined edge which is close to one side of the light emitting side and gradually extends towards the center direction of the opening pattern to the side of the light emitting side, and a second reflecting layer is arranged on the third waist and the fourth waist.

10. The display device according to claim 9,

the value range of the inclination angle alpha of the second bevel edge relative to the light-emitting side of the display panel is more than or equal to 90 degrees and less than 180 degrees.

11. The display device according to any one of claims 1 to 10,

the first reflecting layer is a metal reflecting layer with the reflectivity of more than or equal to 85%, and the thickness of the film layer is more than or equal to 20 nm.

12. The display device according to claim 1,

the display area of the display device comprises a first side and a second side which are opposite in the first direction, the first side is the side where the first waist is located, the second side is the side where the second waist is located, and the display area of the display device is divided into a plurality of sub-areas from one side of the first side to the second side; and/or from the first side to the second side, the inclination angle theta of the first oblique side in the sub-area is gradually reduced, and the film layer thicknesses of the first light shielding layer and the first reflecting layer in the sub-area are gradually reduced.

13. A vehicle-mounted display comprising the display device according to any one of claims 1 to 12.

14. A method of manufacturing a display device, characterized in that it is used to manufacture a display device according to any one of claims 1 to 12, said method comprising the steps of:

manufacturing the display panel;

15. The method according to claim 14, for manufacturing the display device according to claim 7, wherein after the forming the first oblique side by over-etching the side of the opening region corresponding to the first waist, the method further comprises:

forming a second light shielding material layer;