JP2008111890A - Curved surface display panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curved surface display panel capable of preventing an image observed from a fixed direction from being recognized as distorted when the direction for observing the curved display panel is set to the fixed direction. <P>SOLUTION: A viewpoint 11 for observing the curved display panel 1 is present at a position distant from the curved surface panel 1 to the extent that each line of sight up to each position on the display surface of the curved surface display panel 1 can be approximated to be parallel. The curved surface display panel 1 is curved in a perpendicular direction. As regards the height of each pixel on the curved surface display panel 1, it is determined such that the height of the pixel more distant from a reference position 12 in the perpendicular direction becomes higher so that a distance between a line of sight connecting the viewpoint 11 to the upper end of a pixel and a line of sight connecting the viewpoint to the lower end of the pixel becomes equal to each other in each pixel. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a curved display panel that is a curved display panel, and more particularly to a curved display panel that can display an image that does not cause an observer to feel distortion.

  Conventionally, various display panels generally have an aspect in which an image is displayed on a flat panel. However, recently, a curved display panel (hereinafter referred to as a curved display panel) has been proposed as a display panel. For example, Patent Document 1 describes a curved liquid crystal panel.

  Further, in order to increase the degree of freedom of an image to be displayed, a driving method in which a plurality of pixels are arranged in a matrix and a desired image is displayed by controlling the state of each pixel is widely known. The curved liquid crystal panel described in Patent Document 1 has a configuration in which a plurality of combinations of transparent electrodes and thin film transistors (TFTs) are arranged so as to face the common electrode. Then, each pixel is driven independently using a thin film transistor as a switching element to display an image.

JP 2004-354468 A

  When an image is displayed by supplying image data for a flat panel to a curved display panel in which a plurality of pixels are arranged, the image looks locally distorted to the observer of the image because the panel shape is curved. There is a problem.

  FIG. 4 is an explanatory diagram showing a situation where the letter “A” is displayed on a flat panel in which pixels are arranged in a matrix. In the example illustrated in FIG. 4, the character “A” is displayed by the plurality of pixels 110. Note that the size of each pixel 110 is equal.

  FIG. 5 is an explanatory diagram illustrating an example of a curved display panel. A plurality of pixels (not shown in FIG. 5) are arranged in a matrix on the curved display panel 100, and each pixel has the same size. In addition, the size of each pixel of the curved display panel is assumed to be the same as the size of each pixel of the flat panel. FIG. 5 shows an example in which the display surface 101 of the curved display panel 100 is a concave curved surface. Assume that the same image data as that for displaying the letter “A” shown in FIG. 4 on the flat panel is supplied to the curved display panel 100 to display an image. Also in this case, the curved display panel 100 displays the letter “A” on the display surface 101. However, some characters appear to be distorted to the observer.

  Since the curved display panel 100 shown in FIG. 5 is curved in the vertical direction, when the display surface 101 is observed from the front, the height of each pixel is reduced for the observer as the distance from the central portion increases in the vertical direction. It feels like That is, the apparent height of the pixels that are away from the center in the upward or downward direction appears to be reduced. FIG. 6 is an explanatory diagram showing the apparent height of each pixel of the curved display panel. FIG. 6 shows a state where the curved display panel is viewed from the side. In the example shown in FIG. 6, 14 pixels having a height a are arranged vertically. However, since the curved display panel 100 is curved in the vertical direction, when the display surface is observed from the front, the height of the pixel at the center is almost the same as the height a of the pixel itself, such as H7 and H8. Become. However, the further away from the center in the vertical direction, the smaller the pixel height is observed. For example, the height of the upper end pixel and the lower end pixel is lower than the height of the pixels near the center, such as H1 and H14. Is done.

  When an image is displayed on such a curved display panel 100 by supplying the same image data as the image data supplied to the flat panel, the pixel height seems to be reduced as the distance from the center portion increases in the vertical direction. The upper and lower parts of the image appear distorted. FIG. 7 shows a case where the same image data as when the image illustrated in FIG. 4 is displayed on the flat panel is supplied to the curved display panel 100 and the image (in this example, the letter “A”) is displayed on the curved display panel. It is explanatory drawing which shows the example of the visual recognition state of this image. Since the curved display panel recognizes that the upper and lower pixels are shrunk, the upper and lower parts of the letter “A” displayed on the curved display panel are shrunk when FIG. The character is recognized as distorted. Note that the width of the character (image) is the same as that displayed on the flat panel, but the height of the character (image) is observed with the pixel height reduced, so that the height of the character (image) is smaller than that of the flat panel. Is also recognized low.

  Although the case where the display surface 101 (see FIG. 5) of the curved display panel 100 is observed from the front is described as an example here, the image appears to be locally distorted when observed from other directions. For example, when the display surface 101 of the curved display panel 100 is observed obliquely downward, the height of the pixel at the lower part of the curved display panel 100 is observed to be particularly reduced, and the lower part of the image looks particularly distorted.

  In the above example, the case where the curved display panel 100 is curved in the vertical direction has been described as an example. However, even when the curved display panel 100 is curved in the horizontal direction, the image is observed as if distorted. Note that “curved in the vertical direction” means a state in which the vertical sectional view of the panel is curved. “Curved in the horizontal direction” means a state in which the horizontal sectional view of the panel is curved.

  In addition, not only when the display surface is a concave curved surface, but also when the display surface is a convex curved surface, the problem is that the image is observed as if distorted.

  Accordingly, an object of the present invention is to provide a curved display panel that can prevent an image observed from the direction from being distorted and recognized when the direction in which the curved display panel is observed is set to a certain direction.

  Aspect 1 of the present invention is a curved display panel, which is a curved display panel in which a plurality of pixels are arranged, and the size of the pixel varies depending on the distance from the reference position of the curved display panel. Is a position where the line of sight to the reference position from a viewpoint determined at a position away from the curved display panel to the extent that the line of sight to each position of the curved display panel can be approximated to be parallel intersects the curved display panel vertically A curved display panel characterized by being defined as follows.

  Aspect 2 of the present invention provides a curved display panel according to Aspect 1, in which the longer the pixel in the predetermined direction is, the longer the pixel is in the predetermined direction from the reference position.

  Aspect 3 of the present invention is a curved display panel that is curved in the vertical direction in aspect 2, and is a curved surface in which the vertical length of the pixel (the height of the pixel) is longer as the pixel is further away from the reference position in the vertical direction. Provide a display panel.

  Aspect 4 of the present invention is the aspect 4 according to the aspect 3, in which the interval between the line of sight connecting the viewpoint and the upper end of the pixel and the line of sight connecting the viewpoint and the lower end of the pixel are equal to each other in the vertical direction from the reference position. Provided is a curved display panel in which a pixel in a vertical direction has a longer length in a longer distance.

  Aspect 5 of the present invention is a curved display panel that is curved in the horizontal direction in aspect 2, and is a curved display in which the pixels in the horizontal direction (pixel width) are longer in the horizontal direction from the reference position. Provide a panel.

  Aspect 6 of the present invention provides the horizontal direction from the reference position so that the distance between the line of sight connecting the viewpoint and the right end of the pixel and the line of sight connecting the viewpoint and the left end of the pixel is equal to each other. Provided is a curved display panel in which a pixel in a horizontal direction is set to have a longer length in the horizontal direction.

  Aspect 7 of the present invention is a curved display panel that is curved in each of the vertical direction and the horizontal direction in aspect 1, and a pixel that is further away from the reference position in the vertical direction has a vertical length (pixel height). A curved display panel having a longer pixel length in the horizontal direction (pixel width) is provided for pixels that are longer in the horizontal direction from the reference position.

  Aspect 8 of the present invention is the aspect 8 in the vertical direction from the reference position so that the distance between the line of sight connecting the viewpoint and the upper end of the pixel and the line of sight connecting the viewpoint and the lower end of the pixel are equal to each other. The reference position is set so that the distance between the visual line connecting the viewpoint and the right end of the pixel and the visual line connecting the viewpoint and the left end of the pixel are equal for each pixel. Provided is a curved display panel in which the pixels in the horizontal direction are longer in the horizontal direction as the pixels are further away from each other in the horizontal direction.

  According to the present invention, when the direction in which the curved display panel is observed is set to a certain direction, it is possible to prevent the image observed from that direction from being distorted and recognized.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[First Embodiment] FIG. 1 is an explanatory diagram showing a curved display panel according to a first embodiment of the present invention. The curved display panel 1 according to the first embodiment is a curved display panel that is curved in the vertical direction, and FIG. 1 schematically shows a vertical section of the curved display panel 1. In the following description, it is assumed that the curved display panel 1 is curved in an arc shape in the vertical direction, and the curvature radius of the curvature is constant. Hereinafter, this curvature radius is set to r. Further, a case where the display surface for displaying an image (the surface on which the image is observed by the observer) is a concave curved surface will be described as an example.

  On the curved display panel 1, a plurality of pixels are arranged in a matrix. Hereinafter, examples of the curved display panel 1 and pixel modes will be described.

  The curved display panel 1 may be a liquid crystal panel driven by an active matrix driving method, for example. In this case, the curved display panel 1 includes a first transparent substrate 21 and a second transparent substrate 22 shown in FIG. A plurality of combinations of switching elements (for example, TFT (Thin Film Transistor)) and display electrodes (not shown) are arranged in a matrix on one of the first transparent substrate 21 and the second transparent substrate 22. On the other substrate, a common electrode (not shown) facing each display electrode is arranged. Each electrode (common electrode or display electrode) is curved so as to match the shape of the transparent substrate on which the electrode is disposed. Further, the curved display panel 1 sandwiches liquid crystal between the first transparent substrate 21 and the second transparent substrate 22. In the curved display panel having such a structure driven by the active matrix driving method, the arrangement portion of each display electrode (not shown) is each pixel. That is, the width of the display electrode (horizontal length) is the pixel width, and the height of the display electrode (vertical length) is the pixel height.

  The curved display panel 1 may be a liquid crystal panel driven by a simple matrix driving method. In this case, the curved display panel 1 includes a first transparent substrate 21 and a second transparent substrate 22. A plurality of scanning electrodes (not shown) are arranged on one of the first transparent substrate 21 and the second transparent substrate 22, and a plurality of signal electrodes (not shown) are arranged on the other substrate. Be placed. Each scanning electrode and each signal electrode are arranged so as to be orthogonal to each other through a liquid crystal. Each electrode (row electrode or column electrode) is curved to match the shape of the transparent substrate on which the electrode is disposed. Further, the curved display panel 1 sandwiches liquid crystal between the first transparent substrate 21 and the second transparent substrate 22. In the curved display panel having such a structure driven by the simple matrix driving method, a portion where each scanning electrode and each signal electrode intersect is each pixel. Accordingly, the width of the scanning electrode is the height of the pixel (the vertical length of the pixel), and the width of the signal electrode is the width of the pixel (the horizontal length of the pixel).

  In this example, the curved display panel 1 is a liquid crystal panel driven by an active matrix driving method or a simple matrix driving method, but may be another display panel. For example, an organic EL (Electroluminescence) display panel may be used.

  In the present invention, it is assumed that the curved display panel 1 is observed from a predetermined direction. When the distance between the observer's viewpoint 11 and the curved display panel 1 is sufficiently large with respect to the radius of curvature r, each line of sight from the viewpoint 11 to each position on the display surface of the curved display panel 1 is parallel. And can be approximated. It is assumed that the viewpoint 11 exists at a position away from the curved display panel 1 to the extent that each line of sight from the viewpoint 11 to each position on the display surface of the curved display panel 1 can be approximated to be parallel. That is, the observer observes the image displayed on the display surface of the curved display panel 1 from such a position.

  A reference position 12 is defined on the curved display panel 1. The reference position 12 is a position in the curved display panel 1 where the line of sight from the viewpoint 11 intersects the curved display panel 1 perpendicularly. For convenience, in the following description, it is assumed that the reference position 12 is located at the boundary of pixels arranged vertically (pixels 31 and 32 in the example shown in FIG. 1). In the example shown in FIG. 1, the viewpoint 11 exists in the front direction of the curved display panel 1 and the reference position 12 is the central portion in the vertical direction of the curved display panel 1.

The height of each pixel of the curved display panel 1 according to the first embodiment is determined so as to increase as the pixel is separated from the reference position 12 in the vertical direction. For example, the pixels 31 and 32 adjacent to the reference position 12 have the lowest height (a ₁ and b ₁ shown in FIG. ₁ ) and are the furthest away from the reference position 12 in the vertical direction (the upper and lower ends of the curved display panel 1). The height (a _n , b _m shown in FIG. 1) is the highest. It is assumed that n pixels are arranged in the upward direction from the reference position 12 to the upper end of the curved display panel 1, and for each pixel arranged in the upward direction from the reference position 12, 1 to Assume that n is assigned. Similarly, it is assumed that m pixels are arranged in the downward direction from the reference position 12 to the lower end of the curved display panel 1, and 1 for each pixel arranged in the downward direction from the reference position 12 in the order closer to the reference position 12. A number of ~ m shall be assigned. In this example, since the reference position 12 is the central portion in the vertical direction of the curved display panel 1, n = m.

Also, each pixel is curved in accordance with the shape of the transparent substrates 21 and 22. The height _a 1 ~a _n and _b 1 ~b _m in each pixel is the length along the curve of each pixel. In other words, the arc length of each pixel curved in an arc shape.

  Further, the height of each pixel of the curved display panel 1 is set so that the distance between the line of sight connecting the viewpoint 11 and the upper end of the pixel and the line of sight connecting the viewpoint 11 and the lower end of the pixel is equal for each pixel. It is determined to be higher as the pixel is further away from the position 12 in the vertical direction.

For example, the height of each pixel aligned upward from the reference position 12 is set to a _k . A distance between a parallel line of sight connecting the viewpoint 11 and the upper end of the pixel and a parallel line of sight connecting the viewpoint 11 and the lower end of the pixel is _denoted by _Ak . Here, k is the number of each pixel lined up from the reference position 12. _{A 1} = A 2 = ··· = so that _{A n,} the height of each pixel defined as _{a 1 <a 2 <··· <} a n.

Similarly, the height of each pixel aligned in a downward direction from the reference position 12 and b _k. Further, to the parallel line of sight connecting the upper end of the viewpoint 11 and the pixel, the distance between the parallel line of sight connecting the viewpoint 11 and the lower end of the pixel and B _k. Here, k is the number of each pixel lined down from the reference position 12. _{B 1} = B 2 = ··· = such that _{B m,} defined as the height of each pixel _{b 1 <b 2 <··· <} b m.

At this time, A ₁ = A ₂ =... = A _n = S and B ₁ = B ₂ =... = B _m = S. S is the height of the pixel at the reference position 12 (pixels 31 and 32 in the example shown in FIG. 1).

In addition, when the magnification indicating how many times a _k is A _k is α _k , a _k = α _k · A _k is expressed. Similarly, when the magnification indicating how many times b _k is B _k is β _k , b _k = β _k · B _k is expressed. In this example, the reference position 12 is the central portion in the vertical direction of the curved display panel 1 and n = m, so α _k = β _k .

In order to determine the height of each pixel so that A ₁ = A ₂ =... = A _n = S, the height of each pixel may be determined as follows. The height _ak of the _kth pixel lined up from the reference position 12 is obtained by the following equation.

a _k = r · [sin ⁻¹ (k · S / r) −sin ⁻¹ {(k−1) · S / r}]

Similarly, in order to determine the height of each pixel so that B ₁ = B ₂ =... = B _m = S, the height of each pixel may be determined as follows. The height bk of the _kth pixel lined down from the reference position 12 is obtained by the following equation.

b _k = r · [sin ⁻¹ (k · S / r) −sin ⁻¹ {(k−1) · S / r}]

In the vertical cross section of the curved display panel 1 shown in FIG. 1, a line connecting the arcuate center position 13 formed by the curved display panel 1 and the reference position 12 is referred to as a reference line. In addition, an angle between a line connecting the arc-shaped center position 13 and the end of the kth pixel from the reference position (end far from the reference position 12) and the reference line is θ _k (see FIG. 1).

In each of the above equations, sin ⁻¹ (k · S / r) is θ _k , and sin ⁻¹ {(k−1) · S / r} is θ _k−1 .

  Next, the effect of the present invention will be described with reference to FIG. FIG. 2 is an explanatory diagram showing the effect of the present invention. In the present invention, the height of each pixel of the curved display panel 1 is higher as the pixel is away from the reference position 12 in the vertical direction. Therefore, assuming that the curved display panel 1 is not curved (that is, a flat surface), the observer is closer to the upper end and lower end of the curved display panel 1 as shown in FIG. The image will be observed as if stretched. Since the height of each pixel is determined in this way on the curved display panel 1, the observer can observe an image without distortion (see FIG. 2B).

[Second Embodiment] FIG. 3 is an explanatory diagram showing a curved display panel according to a second embodiment of the present invention. The curved display panel 1 according to the second embodiment is a curved display panel that is curved in the horizontal direction, and FIG. 3 schematically shows a horizontal section of the curved display panel 1. The curved display panel 1 will be described as being curved in an arc shape in the horizontal direction, and the curvature radius of the curvature is constant. As in the first embodiment, this radius of curvature is r. Further, a case where the display surface for displaying an image is a concave curved surface will be described as an example.

  Also in the second embodiment, it is assumed that the curved display panel 1 is observed from a predetermined direction. Similarly to the first embodiment, the viewpoint 11 is separated from the curved display panel 1 to the extent that each line of sight from the viewpoint 11 to each position on the display surface of the curved display panel 1 can be approximated to be parallel. It is assumed to exist at the position.

  The reference point 12 is a position in the curved display panel 1 where the line of sight from the viewpoint 11 intersects the curved display panel 1 perpendicularly. For convenience, in the following description, it is assumed that the reference position 12 is located at the boundary of pixels arranged in the horizontal direction (pixels 41 and 42 in the example shown in FIG. 3). In the example illustrated in FIG. 3, the viewpoint 11 is present in the front direction of the curved display panel 1 and the reference position 12 is the central portion in the horizontal direction of the curved display panel 1.

The width (length in the horizontal direction) of each pixel of the curved display panel 1 according to the second embodiment is determined so as to be wider as the pixel is further away from the reference position 12 in the horizontal direction. For example, the width of the pixels 41 and 42 adjacent to the reference position 12 (c ₁ and d ₁ shown in FIG. 3) is the narrowest, and the pixel farthest from the reference position 12 in the horizontal direction (the right and left edges of the curved display panel 1). The width of the pixel) (c _n , d _m shown in FIG. 3) is the widest. It is assumed that n pixels are arranged in the right direction from the reference position 12 to the right end of the curved display panel 1, and for each pixel arranged in the right direction from the reference position 12, 1 to Assume that n is assigned. Similarly, it is assumed that m pixels are arranged in the left direction from the reference position 12 to the left end of the curved display panel 1, and for each pixel arranged in the left direction from the reference position 12, 1 in the order closer to the reference position 12. A number of ~ m shall be assigned. In this example, since the reference position 12 is the central portion of the curved display panel 1 in the horizontal direction, n = m.

Each pixel is also curved in accordance with the shape of the transparent substrates 21 and 22. Width _c 1 to c _n and _d 1 to d _m of the pixels is the length along the curve of each pixel. In other words, the arc length of each pixel curved in an arc shape.

  Further, the width of each pixel of the curved display panel 1 is set so that the distance between the line of sight connecting the viewpoint 11 and the right end of the pixel and the line of sight connecting the viewpoint 11 and the left end of the pixel is equal for each pixel. The distance from the pixel 12 in the horizontal direction is determined to be wider.

For example, the width of each pixel arranged in the right direction from the reference position 12 is _ck . Further, a distance between a parallel line of sight connecting the viewpoint 11 and the right end of the pixel and a parallel line of sight connecting the viewpoint 11 and the left end of the pixel is C _k . Here, k is the number of each pixel arranged in the right direction from the reference position 12. _{C 1} = C 2 = As a ··· = _{C n,} defines the width of each pixel _c 1 _{<and c} 2 <··· <c _n.

Similarly, the width of each pixel arranged in the left direction from the reference position 12 is d _k . Further, the distance between the parallel line of sight connecting the viewpoint 11 and the right end of the pixel and the parallel line of sight connecting the viewpoint 11 and the left end of the pixel is _Dk . Here, k is the number of each pixel arranged in the left direction from the reference position 12. _{D 1} = D 2 = such that ··· = _{D m,} defining the width of each pixel _d 1 _{<and d} 2 <··· <d _m.

At this time, C ₁ = C ₂ =... = C _n = T and D ₁ = D ₂ =... = D _m = T. T is the width of the pixel at the reference position 12 (pixels 41 and 42 in the example shown in FIG. 3).

In order to determine the width of each pixel so that C ₁ = C ₂ =... = C _n = T, the width of each pixel may be determined as follows. The width _ck of the _kth pixel arranged in the right direction from the reference position 12 is obtained by the following equation.

c _k = r · [sin ⁻¹ (k · T / r) −sin ⁻¹ {(k−1) · T / r}]

Similarly, in order to determine the width of each pixel so that D ₁ = D ₂ =... = D _m = T, the width of each pixel may be determined as follows. The width d _k of the _kth pixel arranged in the left direction from the reference position 12 can be obtained by the following equation.

d _k = r · [sin ⁻¹ (k · T / r) −sin ⁻¹ {(k−1) · T / r}]

  As described above, by increasing the width of each pixel in the horizontal direction from the reference position 12, the observer can observe an image without local distortion.

  Although the case where the display surface of the curved display panel 1 is a concave curved surface has been described in the first embodiment and the second embodiment, the display surface of the curved display panel 1 may be a convex curved surface.

  In the first and second embodiments, the case where the viewpoint 11 exists in the front direction of the curved display panel 1 has been described as an example. However, the viewpoint 11 is not limited to the front direction. For example, it may be assumed that the viewpoint 11 exists obliquely below the curved display panel 1 (that is, the observer observes the curved display panel 1 from obliquely below).

  In the first embodiment, the curved display panel 1 is curved in the vertical direction, and in the second embodiment, the curved display panel 1 is curved in the horizontal direction. The curved display panel 1 may be curved in each of the vertical direction and the horizontal direction. In that case, the height of each pixel may be determined as shown in the first embodiment, and the width of each pixel may be determined as shown in the second embodiment.

  In addition, the curved display panel 1 may be a curved surface having a complicated shape as long as the height and width of each pixel are determined so that the observer can observe the image without distortion. For example, the curved display panel 1 may have a wavy curved surface.

  In each of the above embodiments, the case where the pixels are arranged in a matrix has been described as an example. The curved display panel 1 is a display panel driven by static drive, and the present invention can be applied even when each pixel is formed in a shape such as a character.

  The present invention is preferably applied to a curved display panel which is a curved display panel. For example, the present invention is suitably applied to a curved display panel used for an instrument panel of an automobile.

Explanatory drawing which shows the curved-surface display panel of the 1st Embodiment of this invention. Explanatory drawing which shows the effect of this invention. Explanatory drawing which shows the curved-surface display panel of the 2nd Embodiment of this invention. Explanatory drawing showing the condition which displays the character "A" on the flat panel by which the pixel is arrange | positioned at the matrix form. Explanatory drawing which shows the example of a curved-surface display panel. Explanatory drawing which shows the apparent height of each pixel of a curved-surface display panel. Explanatory drawing which shows the example of the visual recognition state of an image when an image is displayed on the conventional curved-surface display panel.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Curved display panel 11 View point 12 Reference position 21 1st transparent substrate 22 2nd transparent substrate

Claims (8)

A curved display panel which is a curved display panel in which a plurality of pixels are arranged,
The pixel size varies depending on the distance from the reference position of the curved display panel,
The reference position is such that the line of sight to the reference position is perpendicular to the curved display panel from a viewpoint determined at a position away from the curved display panel to the extent that the line of sight to each position of the curved display panel can be approximated to be parallel. A curved display panel characterized by being defined as a position where it intersects.   2. The curved display panel according to claim 1, wherein a pixel farther from the reference position in a predetermined direction has a longer length in the predetermined direction. A curved display panel curved in a vertical direction,
The curved display panel according to claim 2, wherein the pixel in the vertical direction is longer as the pixel is further away from the reference position in the vertical direction. Pixels that are farther away from the reference position in the vertical direction have a longer vertical length so that the distance between the line of sight connecting the viewpoint and the upper end of the pixel and the line of sight connecting the viewpoint and the lower end of the pixel are equal for each pixel. The curved display panel according to claim 3, wherein the curved display panel is long. A curved display panel curved in the horizontal direction,
The curved display panel according to claim 2, wherein the pixel in the horizontal direction is longer as the pixel is further away from the reference position in the horizontal direction. Pixels that are further in the horizontal direction from the reference position have a horizontal length so that the distance between the line of sight connecting the viewpoint and the right end of the pixel and the line of sight connecting the viewpoint and the left end of the pixel are equal for each pixel. The curved display panel according to claim 5, wherein the curved display panel is long. A curved display panel curved in each of the vertical and horizontal directions,
The longer the pixel in the vertical direction from the reference position, the longer the vertical length of the pixel,
The curved display panel according to claim 1, wherein the pixel in the horizontal direction is longer as the pixel is further away from the reference position in the horizontal direction. Pixels that are farther away from the reference position in the vertical direction have a longer vertical length so that the distance between the line of sight connecting the viewpoint and the upper end of the pixel and the line of sight connecting the viewpoint and the lower end of the pixel are equal for each pixel. Long,
Pixels that are further in the horizontal direction from the reference position have a horizontal length so that the distance between the line of sight connecting the viewpoint and the right end of the pixel and the line of sight connecting the viewpoint and the left end of the pixel are equal for each pixel. The curved display panel according to claim 7, wherein the curved display panel is long.

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