KR20190081768A - Display Device And Vehicle - Google Patents

Abstract

The present embodiment relates to a display device which does not include a light control film and improves a viewing angle, and a vehicle including the same. The display device comprises a plurality of pixels, comprises a display panel having a first axis and a second axis and a polarizing plate disposed on the display panel, and the polarizing plate polarizes light at a specific angle with one of the first and second axes.

Description

DISPLAY DEVICE AND VEHICLE [0002]

The present embodiment relates to a display device for displaying an image and a vehicle including the same.

2. Description of the Related Art [0002] With the development of an information society, demands for a display device for displaying an image have increased in various forms. Recently, a liquid crystal display device (LCD), a plasma display panel (PDP) Various display devices such as an organic light emitting display device (OLED) and the like are being utilized.

Such a display device includes a data driver including data lines and gate lines, a display panel having subpixels defined at points where data lines and gate lines cross each other, and supplying data signals to the data lines, A gate driver for supplying a scan signal to the gate lines, and the like.

Generally, a screen of a video display device is reflected and projected on the inside of the room or the front glass of the vehicle. If the screen of the image display device is reflected and projected on the front glass of the vehicle at nighttime driving, it may interfere with the driving of the driver, thus posing a safety hazard. To prevent this, a light control film (LCF) is used.

However, the addition of LCF to the process causes the unit price to rise. In addition, there is a disadvantage that the viewing angle is limited when an outside passenger watches the display device.

The present embodiment is to provide a display device that minimizes or reduces image reflection of a windshield during nighttime driving to eliminate a driver's visual disturbance factor, and a vehicle including the same.

The present embodiment is to provide a vehicle including a display device and a display device that do not restrict the viewing angle when the outside driver watches the display device even when the nighttime driving does not include a film for a specific use.

One embodiment for achieving the above-mentioned object includes a display panel including a plurality of pixels and a polarizing plate disposed on the display panel and polarizing the light output from the display panel in a plane from 5 to 30 degrees from the vertical axis Display device.

Another embodiment is a display device including a display panel including a plurality of pixels, a display device including a polarizing plate disposed on the display panel and polarizing light output from the display panel in parallel with the incident surface, and a display device including a front glass and a front glass And a dashboard including a display device to be disposed.

According to the present embodiments, there is an effect that a visual disturbance factor of the driver can be removed by minimizing or reducing the image reflection of the windshield during night driving.

According to the embodiments, there is an effect that the viewing angle is not limited when the outside driver watches the display device even when the nighttime driving does not include a film for a specific use.

1 and 2 are a plan view and a cross-sectional view of a display device according to an embodiment.
FIG. 3 is a comparative example showing the internal state of a vehicle in which a general display device not including a polarizer is mounted at nighttime.
FIG. 4 is a three-dimensional representation of a display device, a reflection-projected image, and a state of a driver's eye when the display device of FIG. 3 is embedded in a vehicle.
5 is a diagram illustrating Brewster's law in which light incident on a boundary surface between two media having different refractive indices is reflected and transmitted.
6A and 6B show that light output from the display device is reflected and transmitted to the front glass in a vehicle including a display device not including the polarizer of Fig. 2 and a display device including the polarizer of Fig. 2 These are the drawings.
7 is a cross-sectional view of the polarizing plate of Fig.
8A to 8D are views showing a method of polarizing outgoing light so as to be parallel to the incident surface.
9 is a view schematically showing a structure of a display device according to another embodiment.
10 is a view showing an inner appearance of a vehicle according to another embodiment.
Fig. 11 shows a video display environment of the display device in the vehicle of Fig.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will be more apparent from the following detailed description taken in conjunction with the accompanying drawings. In the drawings, like reference numerals are used to denote like elements throughout the drawings, even if they are shown on different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the components from other components, and the terms do not limit the nature, order, order, or number of the components. These terms are used only to distinguish one component from another. Therefore, the first component mentioned below may be the second component within the technical spirit of the present invention.

 When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; intervening "or that each component may be" connected, "" coupled, "or " connected" through other components.

The shapes, sizes, ratios, angles, numbers, and the like disclosed in the drawings for describing the embodiments of the present invention are illustrative, and thus the present invention is not limited thereto.

In the case where the word 'includes', 'having', 'done', etc. are used in this specification, other parts can be added unless '~ only' is used. Unless the context clearly dictates otherwise, including the plural unless the context clearly dictates otherwise.

In interpreting the constituent elements, it is construed to include the error range even if there is no separate description.

In the case of a description of the positional relationship, for example, if the positional relationship between two parts is described as "on", "on", "on", or "next to" There may be more than one other part between the two parts, unless 'direct' is used.

In the case of a description of a temporal relationship, for example, if a temporal posterior relationship is described by 'after', 'after', 'after', 'before', etc., 'May not be contiguous unless it is used.

It is to be understood that each of the features of the various embodiments of the present invention may be combined or combined with each other, partially or wholly, technically various interlocking and driving, and that the embodiments may be practiced independently of each other, It is possible.

In the drawings, the size and thickness of the device may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

In the present specification, the terms " film ", " plate ", " layer " and the like are used interchangeably when expressing structures related to the present disclosure. Therefore, it is not a separate constitution according to the expression.

1 and 2 are a plan view and a cross-sectional view of a display device according to an embodiment.

Referring to FIGS. 1 and 2, a display device 100 according to an embodiment includes a display panel 110 and a polarizer 120.

The display panel 110 includes a plurality of pixels that are defined by intersecting a plurality of gate lines and a plurality of data lines. The display panel 110 may be a liquid crystal display panel having a liquid crystal layer or an organic light emitting display panel having an organic light emitting diode, but is not limited thereto.

The display device 100 can be used, for example, in a vehicle or in a vehicle mounted on a separate stand outside the vehicle. For example, the display device 100 may be located on the right side of the steering wheel with respect to the driver in a dashboard in which various instrument panels of the vehicle and audio are embedded.

The polarizing plate 120 is disposed on the display panel 110 in a direction in which the image of the display panel 110 is output.

The polarizing plate 120 is configured to transmit the light output from the display panel 110 to the plane of the vehicle 100 in such a manner that the light emitted from the display panel 100 is transmitted to the front glass of the vehicle when the display device 100 is built- To polarize the light at a specific angle from the vertical axis. For example, the polarizing plate 120 polarizes the light output from the display panel 110 in a plane from 5 to 30 degrees from the vertical axis.

FIG. 3 is a comparative example showing the internal state of a vehicle in which a general display device not including a polarizer is mounted at nighttime.

3, a general display device 200 that does not include a polarizer can be embedded on the right side of the dashboard 242 having various instrument panels of the vehicle 240 and audio, .

It is possible to cause a safety hazard by interfering with the driving of the driver due to the reflection image 248 of the display device 200 on the windshield 246 of the vehicle 240 at night.

In order to prevent this, the upper and lower viewing angle control is performed using a light control film (LCF), which can limit the viewing angle and lower the luminance when the outside passenger sees the display device 200.

FIG. 4 is a three-dimensional representation of relative positions of a display device, a reflection-projected image, and a driver's eye when the display device of FIG. 3 is embedded in a vehicle.

Referring to FIG. 4, when the display device 200 of FIG. 3 is embedded in the vehicle 240, among the lights output from the display device 200, the light from the display device 200 to the front glass 246 And light is gathered on one axis to form an image 248 projected on the front glass.

Here, the axis perpendicular to the ground in the direction from the display device 200 toward the windshield 246 may be a relative concept. For example, in the case of the display device 200 built in the vehicle 240, if the display device 200 is a rectangle having a transverse long axis as shown in FIG. 3, the short axis is a vertical axis. On the contrary, in the case of a rectangular display device in which the short axis is transverse, the long axis corresponds to the vertical axis. However, the present invention is not limited thereto.

It is possible to determine an arbitrary point at which the image is emitted from the display device 200 and an arbitrary point where the image is emitted from the display device 200 in consideration of the vehicle body of the vehicle 240, the dashboard 242, the shape of the windshield 246, The average angle of the plane of the driver 250, that is, the plane of incidence 150, between the line segment between the points of the reflected projected image 248 corresponding to the image emitted from the point can be measured through simulation have.

As a result of the simulation, even if the vehicle body of the vehicle 240, the dashboard 242, the shape of the windshield 246, the built-in conditions of the display device 200, The angle of the incident surface 150 formed by the line segment connecting between the point and the point of the reflection projected image 248 corresponding to the image emitted from the point and the eyes of the driver 250, It was confirmed that the average deviation from the vertical axis in the plane was not deviated from 5 to 30 degrees.

As a result of the simulation, when considering only the shapes of the dashboard 242 and the windshield 246 of the vehicle 240, it is possible to use any point at which the image is emitted from the display device 200 and a reflection projection And the angle of the incident surface 150 formed by the line segment connecting between the points of the image 248 and the eyes of the driver 250 is such that the light output from the display panel 110 is averaged from the vertical axis on a plane, . ≪ / RTI >

Accordingly, the display apparatus 100 according to the embodiment includes the polarizer 120 that polarizes the light output from the display panel 110 in a plane on a specific angle, for example, 5 to 30 degrees from the vertical axis It is possible to minimize or reduce the reflection projection of the display device 100 on the windshield 246 of the vehicle 240 when the display device 100 is embedded or mounted on the vehicle 240. [

As a result of the simulation, when considering only the shapes of the dashboard 242 and the windshield 246 of the vehicle 240, the display device 100 according to the embodiment is capable of projecting the light output from the display panel 110, For example, from 10 to 20 degrees.

The polarizing plate 120 polarizes the light output from the display panel 110 to a specific angle from the vertical axis, for example, 5 to 30 degrees in a plane, so that the display device 100 is embedded in the vehicle 240 The principle of minimizing or reducing the reflection projection of the display device 100 to the windshield 246 of the vehicle 240 when the lens 240 is mounted will be described and the specific configurations of the polarizing plate 120 will be described.

5 is a diagram illustrating Brewster's law in which light incident on a boundary surface between two media having different refractive indices is reflected and transmitted.

Referring to FIG. 5, the light incident on the interface between two media having different refractive indexes is parallel to the incident surface among the incident light components (S wave 190 and P wave 180) based on Brewster's law One P wave 180 is transmitted and the S wave 190 is reflected. Here, the incident surface means a plane formed by an incident line segment of light incident on a boundary surface and a reflection line segment of reflected light.

6A and 6B show that light output from the display device is reflected and transmitted to the front glass in a vehicle including a display device not including the polarizer of Fig. 2 and a display device including the polarizer of Fig. 2 These are the drawings.

6A, when the light emitted from the display device 200 enters the windshield 170 in the vehicle 240 having the display device 200 without the polarizing plate of FIG. 2 incorporated therein, The P wave 180 parallel to the incident surface is transmitted through the incident light components (S wave 190 and P wave 180) based on the Brewster's law and the S wave 190 perpendicular to the incident surface is reflected .

Therefore, among the lights outputted from the display device 200 during the nighttime driving, the S waves 190 reflected on the windshield 170 of the vehicle 240 generate a reflection-projected image 248, thereby obstructing the driving of the driver Safety hazards may result.

6B, in the vehicle 240 incorporating the display device 100 of one embodiment, the light emitted from the display panel 110 passes through the polarizing plate 120 and is incident on a plane at a certain angle from the vertical axis, It is polarized by light of 5 to 30 degrees.

Even if the vehicle body of the vehicle 240 or the dashboard 242, the shape of the windshield 170, the built-in conditions of the display device 100, and the like are taken into consideration, And the plane of the reflective projection image 248 corresponding to the image emitted from the point and the eye of the driver 140 form the light output from the display panel 110 in a plane on the vertical axis Lt; RTI ID = 0.0 > 30 C. < / RTI > 6B, the incident surface is a line segment connecting an arbitrary point at which the image is emitted from the display device 100 and a point of the reflection projected image 248 corresponding to the image emitted from the point, ) Is the plane of the eye. The light parallel to the incident surface is the P wave 180, and the light perpendicular to the incident surface is the S wave 190.

That is, when the light emitted from the display device 100 is incident on the windshield 170, an incident light component (S wave 190, P wave 180), based on Brewster's law, Only the P wave 180 parallel to the plane of incidence formed by the line segment between the projection image 248 and the eye of the driver 140 reaches the windshield 170.

Therefore, since the light output from the display device 100 at the nighttime of the vehicle 240 is not projected on the windshield 170 of the vehicle 240, the reflected projected image 248 is not produced

7 is a cross-sectional view of the polarizing plate of Fig.

7, in order to polarize the light output from the display panel 110 on a plane from 5 to 30 degrees from the vertical axis, the polarizing plate 120 includes a linearly polarized light layer And an optical compensation layer 120a located on the linear polarization layer 120b and changing the polarization state of the linearly polarized light.

The linear polarized light layer 120b includes a transmission axis and an absorption axis, and linearly polarizes the light output from the display panel 110. [

As the electromagnetic wave passes through the optical compensation layer 120a, the polarization direction becomes a sum of two components parallel or perpendicular to the optical axis, and the vector sum of the two components changes according to the birefringence and the thickness of the optical compensation layer 120a. The polarization direction is different.

The aforementioned optical axis includes a slow axis and a fast axis. Since the ground axis and the true phase axis are orthogonal to each other, there is only a 90 degree difference regardless of the axis, and the essence of the embodiments is not changed. The following description will be made on the basis of the ground axis in one embodiment.

8A to 8D are views showing a method of polarizing outgoing light so as to be parallel to the incident surface.

8A, light (4) in the same oscillation direction as the transmission axis (2) of the linear polarization layer 120b passes through the linear polarization layer 120b when the outgoing light (1) from the display panel 110 passes through the linear polarization layer 120b And is linearly polarized.

The light (4) transmitted by the linearly polarized light layer 120b is linearly polarized light, elliptically polarized light, or circularly polarized light according to the rotation angle of the optical axis (5) of the optical compensation layer 120a.

(4) in the same oscillation direction as the transmission axis (2) and the absorption axis (3), the transmission axis (2), and the optical axis of the optical compensation layer 120a (5) and the light (6) transmitted through the optical compensation layer 120a are shown to form a certain traveling direction or angle. However, this is merely an illustrative example for explaining the present embodiment, but is not limited thereto.

8B and 8D are diagrams for explaining a method of calculating an angle for polarizing the polarizing plate so as to be parallel to the incident surface.

As shown in Figs. 8B and 8C, the angle formed by the transmission axis (2) of the linearly polarized light layer 120b with the vertical axis and the vertical axis is defined as?, And the angle formed between the incident plane and the vertical axis in the plane is?.

The angle? Of the transmission axis (2) of the linear polarized light layer 120b is calculated based on the first direction, but is not limited thereto. The same principle applies to any direction. For example, even if the values of [alpha] and [theta] are measured based on the second direction, the relational expression to be described later is the same. Therefore, one embodiment of the present invention will be described with an angle measured based on the first direction.

Referring to FIG. 8B, when? Is smaller than or equal to?, The linearly polarized light (4) must further rotate toward the second direction. Therefore, the angle of the optical axis (5) of the optical compensation layer 120a can be determined by taking into consideration both the angular difference between? And? And the value obtained by dividing Re [Rad] by 2?

The in-plane phase retardation value Re refers to the in-plane retardation value of the film at a wavelength of 23 (nm). Re [?] Is obtained by Re [?] = (Nx-ny) xd, where d (nm) is the thickness of the film. When Re is expressed in radians, Re [Rad] = (nx-ny) xd (2? /?).

Quot; nx " is a refractive index in a direction perpendicular to the slow axis (i.e., fast axis direction) in the plane, and " And " nz " is the refractive index in the thickness direction.

Expressing this as an equation,? + |? -? * Re [Rad] / (2?).

When the above-described relational expression is satisfied, the angle of the light (6) transmitted through the optical compensation layer 120a becomes?. Therefore, it can be polarized parallel to the incident surface.

Referring to FIG. 8C, when? Is larger than?, The linearly polarized light (4) must be rotated toward the first direction. Therefore, the angle of the optical axis (5) of the optical compensation layer 120a can be determined by taking into consideration both the angular difference between? And? And the value obtained by dividing Re [Rad] by 2?

This can be expressed as: α - | θ - α | * Re [Rad] / (2?).

When the above-described relational expression is satisfied, the angle of the light (6) transmitted through the optical compensation layer 120a becomes?. Therefore, it can be polarized parallel to the incident surface.

The phase retardation value Re of the optical compensation layer may have various values. For example, Re (Rad) = 2π for a full-wave plate, Re (Rad) = π for a half-wave plate, Re (Rad) for a quarter- =? / 2.

If the optical compensation layer 120a is a half wave plate, if? Is less than or equal to?, Then? + |? -? * (1/2) If the angle, α, is greater than θ, then α - | θ-α | * The optical axis (⑤) can be designed by a (1/2) angle. As a result, the linearly polarized light (4) is rotationally polarized and a light (6) having a vibration direction parallel to the incident surface is emitted.

8D, for example, when? Is 0 degree and? Is an average of 10 to 20 degrees,? + |? -? (1/2), the angle of the optical axis? Of the optical compensation layer 120a is 5 to 10 degrees on average with respect to?. The light (6) transmitted through the optical compensation layer 120a having an average of 5 to 10 degrees is an elliptically polarized light having an average angle of 10 to 20 degrees and has a vibration direction parallel to the incident surface.

The half wave plate has an in-plane phase retardation value Re [?] = 260 to 280 [nm], and the slow axis of the optical compensation layer 120a has an average value of 5 to 10 degrees .

On the other hand, when the driver wears sunglasses, the image display device may appear dark due to the polarizing plate 120 included in the sunglasses. At this time, even if sunglasses are worn, sunglasses free (Sunglass Free) function can be applied to improve visibility as if not wearing sunglasses.

The sunglass free function may be designed by adjusting the retardation value and the NZ coefficient in the thickness direction of the optical compensation layer 120a. That is, the optical compensation layer 120a may have a retardation value (Rth [?]) In the thickness direction so as to be sunglass-free.

For example, the half wave plate of the optical compensation layer 120a has in-plane phase retardation value Re [?] = 260 to 280 [nm], and the slow axis of the optical compensation layer 120a has an average value of 5 to 10 , The retardation value (Rth []) in the thickness direction is 500 nm or more and the NZ coefficient is 2.35 or more.

The phase delay value Rth in the thickness direction refers to the retardation value in the thickness direction of the film at a wavelength? (Nm) at 23 占 폚. Rth [?] = Rth [?] = (Nx + ny) / 2 - nz | × d. The NZ coefficient is a value calculated by Rth [?] / Re [?].

9 is a view schematically showing the structure of a display device according to another embodiment.

Referring to FIG. 9, a display device 300 according to another embodiment includes a display panel 310, a polarizing plate 320, and a protective film 330.

The polarizing plate 320 includes an optical compensation layer 320a disposed on the linear polarization layer 320b and the linear polarization layer 320b.

The display panel 310, the polarizing plate 320, the linear polarized light layer 320b and the optical compensation layer 320a are disposed on the display panel 110 and the polarizing plate 120, the linear polarized light layer 120b, Is substantially the same as the optical compensation layer 120a.

A protective film 330 for protecting the display device 300 is disposed on the polarizing plate 320. The protective film 330 may be formed of a cellulose resin such as triacetylcellulose (TAC) or a cellulose resin such as a polyester resin, a polyvinyl alcohol resin, a polycarbonate resin, a polyamide resin, a polyimide resin, a polyether sulfone resin, a polysulfone resin, a polystyrene resin , Polynorbornene-based, polyolefin-based, acrylic-based, and acetate-based transparent resins.

The protective film 330 can also be formed of a thermosetting resin such as an acrylic type, a woofile type, an acrylic urethane type, an epoxy type or a silicone type, or a vitreous type polymer such as an ultraviolet curing type resin or a siloxane type polymer.

10 is a view showing an inner appearance of a vehicle according to another embodiment. Fig. 11 shows a video display environment of the display device in the vehicle of Fig.

Referring to FIG. 10, the vehicle 440 according to another embodiment includes a display device 400 built in the right side of the steering wheel 444 on the basis of the driver, on a dashboard 442 having various instrument panels, audio, . The display device 400 may be the display devices 100 and 300 described with reference to FIGS.

Referring to Figs. 10 and 11 together with Figs. 2 and 7, the vehicle 440 according to another embodiment includes a display panel 110 including a plurality of pixels, a display panel 110 disposed on the display panel 110, A display device 400 including a polarizing plate 120 for polarizing the light output from the polarizing plate 110 in parallel with the incident surface 452 and a display device 400 disposed adjacent to the front glass 446 and the front glass 446 400 may be embedded in the dashboard 442.

It is preferable that any point at which the image is emitted from the display device 400 and a position at which the image is emitted from the display device 400 are determined in consideration of the vehicle body of the vehicle 440, the dashboard 442, the shape of the windshield 446, The average angle of the plane of the driver's eye 450, that is, the plane of incidence 452, between the line segment between the points of the reflected projected image 448 corresponding to the image emitted from the point and the eye of the driver 450 can be measured through simulation have.

As a result of the simulation, even if the vehicle body of the vehicle 440, the dashboard 442, the shape of the windshield 446, the built-in conditions of the display device 400, The angle of the point and the incidence plane 452 formed by the line segment connecting between the point of the reflection projected image 448 corresponding to the image emitted from the point and the eye of the driver 450 is the angle of the light output from the display panel 110 It was confirmed that the average deviation from the vertical axis in the plane was not deviated from 5 to 30 degrees.

Accordingly, the display device 400 includes the polarizing plate 120 that polarizes the light output from the display panel 110 in a plane on a specific angle, for example, 5 to 30 degrees from the vertical axis, The reflection projection of the display device 400 on the windshield 446 of the vehicle 440 can be minimized or reduced when the display device 400 is embedded or mounted in the vehicle 440. [

2 and 7, the polarizing plate 120 includes a linear polarized light layer 120b for linearly polarizing the light emitted from the display device 400, a linear polarized light layer 120b positioned on the linear polarized light layer 120b, And an optical compensation layer 120a that compensates for polarization from 5 degrees to 30 degrees from the vertical axis.

As described with reference to FIG. 8B and FIG. 8C, the angle formed by the transmission axis (2) of the linear polarized light layer 120b with the vertical axis with the vertical axis is?, The angle formed by the incident plane with the vertical axis with the vertical axis, When the value is represented by Re [Rad], the optical axis (5) of the optical compensation layer 120a is represented by? + |? -? If Re [Rad] / (2π) angle is satisfied, or if α is larger than θ, α - | θ-α | * Re [Rad] / (2 pi) angle can be satisfied.

The optical compensation layer 120a is a half-wave plate, and the optical axis? Of the optical compensation layer 120a is? +? -? -? * If (1/2) angle is satisfied, or if α is larger than θ, α - | θ-α | * (1/2) angle may be satisfied.

The half wave plate of the optical compensation layer 120a has an in-plane phase retardation value Re [?] Of 260 to 280 nm,? Of 0 degree,? Of 10 to 20 degrees on average, and a slow axis of? Lt; RTI ID = 0.0 > 5-10 < / RTI >

The optical compensation layer 120a may include a retardation value (Rth [?]) In the thickness direction so as to be sunglass-free. For example, the half wave plate of the optical compensation layer 120a has an in-plane phase retardation value Re [?] Of 260 to 280 nm,? Of 0 degree,? Of 10 to 20 degrees on average, ) Is 5 to 10 degrees on average for?, The retardation value in the thickness direction (Rth [?]) Is at least 500 nm and the NZ coefficient can be at least 2.35.

The vehicle 440 may be a vehicle having all kinds of vehicles, for example, a display device 400 such as an automobile, a truck, a train, or the like. Particularly, the vehicle 440 may be a vehicle having a narrow indoor space and displaying or navigating an image using the display device 400.

When the display device 400 is mounted on the vehicle 440, the display device 400 is mounted on the vehicle 440 in consideration of the angle of polarization of the polarizer of the display device 400, 440) can be obtained.

As described above, according to the embodiment described above, the vehicle 440 including the display device 400 and the display device 400 has the effect of preventing the reflection of the image of the windshield during nighttime operation, have. In addition, the vehicle 440 including the display device 400 and the display device 400 does not include a film for a specific use at night, so that the viewing angle is not limited. Further, the manufacturing cost of the display device can be reduced, and the display device can be made thinner.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. , Separation, substitution, and alteration of the invention will be apparent to those skilled in the art. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

100, 200, 300, 400: display device 110, 210: display panel
120, 320: polarizer 330: protective film
140, 250: driver 150, 452: incidence plane
170, 246: front glass
180: P wave 190: S wave
240, 440: vehicle 242, 442: dashboard
244, 444: steering wheel 248, 448: reflection projected image

Claims (15)

A display panel including a plurality of pixels; And
And a polarizing plate disposed on the display panel and polarizing the light output from the display panel in a plane from 5 to 30 degrees from a vertical axis. The method according to claim 1,
Wherein the polarizing plate includes a linear polarization layer for linearly polarizing the light emitted from the display device and an optical compensation layer positioned on the linear polarization layer and compensating for linearly polarized light on the plane from 5 to 30 degrees from the vertical axis Display device. 3. The method of claim 2,
When an angle formed by the transmission axis of the linearly polarized light layer with the vertical axis is represented by alpha, an angle between the incident plane of the linearly polarized light and the vertical axis is denoted by [theta]
The optical axis of the optical compensation layer,
If α is less than or equal to θ, then α + | θ-α | * Re [Rad] / (2 [pi]) angle,
If α is larger than θ, α - | θ - α | * Re [Rad] / (2?) Angle. The method of claim 3,
The optical compensation layer is a half-wave plate,
The optical axis of the optical compensation layer
If α is less than or equal to θ, then α + | θ-α | * ≪ / RTI > (1/2)
If α is larger than θ, α - | θ - α | * A display device satisfying the (1/2) angle. 5. The method of claim 4,
The half wave plate has an in-plane phase retardation value Re [?] Of 260 to 280 nm,
Alpha is 0 degrees, theta is an average of 10 to 20 degrees,
And the slow axis has an average of 5 to 10 degrees with respect to the alpha. 6. The method of claim 5,
Wherein the optical compensation layer includes a retardation value in a thickness direction (Rth [?]). The method according to claim 6,
The retardation value (Rth []) in the thickness direction is at least 500 nm, and the NZ coefficient is at least 2.35. The method according to claim 1,
Wherein the display panel is a liquid crystal display panel or an organic light emitting display panel. A display panel including a plurality of pixels and a polarizing plate disposed on the display panel and polarizing the light outputted from the display panel in parallel with the incident surface; And
And a dashboard including the front glass and the display device disposed adjacent to the front glass. 10. The method of claim 9,
Wherein the polarizing plate includes a linear polarization layer for linearly polarizing the light emitted from the display device and an optical compensation layer positioned on the linear polarization layer and compensating for linearly polarized light on the plane from 5 to 30 degrees from the vertical axis vehicle. 11. The method of claim 10,
When an angle formed by the transmission axis of the linearly polarized light layer with the vertical axis is represented by alpha, an angle between the incident plane of the linearly polarized light and the vertical axis is denoted by [theta]
The optical axis of the optical compensation layer,
If α is less than or equal to θ, then α + | θ-α | * Re [Rad] / (2 [pi]) angle,
If α is larger than θ, α - | θ - α | A vehicle that meets the Re [Rad] / (2π) angle. 12. The method of claim 11,
The optical compensation layer is a half-wave plate,
The optical axis of the optical compensation layer
If α is less than or equal to θ, then α + | θ-α | * ≪ / RTI > (1/2)
If α is larger than θ, α - | θ - α | * Vehicles that meet the (1/2) angle. 13. The method of claim 12,
The half wave plate has an in-plane phase retardation value Re [?] Of 260 to 280 nm,
Alpha is 0 degrees, theta is an average of 10 to 20 degrees,
Wherein the slow axis is an average of 5 to 10 degrees relative to the a. 14. The method of claim 13,
Wherein the optical compensation layer includes a retardation value in the thickness direction (Rth [?]). 15. The method of claim 14,
The retardation value (Rth []) in the thickness direction is at least 500 nm,
The NZ coefficient is at least 2.35.

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