Display device capable of enlarging visual area

Abstract

In order to solve the problems that the screen size of a common display device is fixed, and when a viewer needs to increase the image size, it is difficult to increase the visual area through the change of the area of a display screen, the invention provides a display device capable of increasing the visual area. The display device capable of enlarging the visual area comprises a display panel, a cylindrical lens grating and a reflector. Direct pixels at the edge position of the display panel are displayed through the projection effect of the cylindrical lens on the pixels, and indirect pixels at the edge position of the display panel are displayed through the reflection effect of the reflector. In the edge area of the screen, a viewer not only can directly view the direct pixels, but also can view the indirect pixels through the reflecting mirror, so that the visual area of the screen is effectively increased.

Description

Technical Field

[0001] The present invention belongs to the field of display technology, and more particularly, to a display device with an enlarged visible area. Background Art

[0002] The screen size of ordinary display devices is fixed. When the viewer needs to increase the image size, it is difficult to increase the visible area by changing the display screen area. To solve this problem, the present invention proposes a display device for increasing the visible area, which is provided with a display panel, a cylindrical lens grating and a reflector. The size of the displayed image is increased by the projection effect of the cylindrical lens on the pixel and the reflection effect of the reflector. Summary of the invention

[0003] In order to solve the problem that the screen size of ordinary display devices is fixed and it is difficult to increase the visible area by changing the display screen area when the viewer needs to increase the image size, the present invention proposes a display device with increased visible area.

[0004] The display device for increasing the visible area comprises a display panel, a cylindrical lens grating and a reflector.

[0005] The left edge and right edge regions of the pixel region of the display panel are covered with cylindrical lens gratings, and the cylindrical lens gratings are placed parallel to the display panel.

[0006] The distance from the apex of each cylindrical lens of the cylindrical lens grating to the display panel is equal to the focal length of the cylindrical lens grating.

[0007] The reflectors are placed at the left and right ends of the display panel, and their reflective surfaces are placed at 90 degrees to the display panel and aligned with the left and right edges of the pixel area of ​​the display panel; the edge of the cylindrical lens grating is aligned with the reflective surface of the reflector.

[0008] In the area where the left and right edges of the pixel area of ​​the display panel are covered with a cylindrical lens grating, direct pixels and indirect pixels are arranged alternately in columns. Any direct pixel column is parallel to the cylindrical lens grating, and any indirect pixel column is also parallel to the cylindrical lens grating.

[0009] Assume the focal length of the cylindrical lens grating is f , the viewport width is w , the cylindrical lens grating pitch is p , the width of direct pixel column and indirect pixel column is s , the distance from the viewing area to the cylindrical lens grating is d , then w = s × d / f , ( d +f ) / d =2 s / p .

[0010] The direct pixels of the direct pixel column are directly projected into the viewing area facing the display panel through the cylindrical lens grating.

[0011] After being projected by the cylindrical lens grating, the indirect pixels of the indirect pixel column cannot be projected into the viewing area facing the display panel.

[0012] After being projected by the cylindrical lens grating, the direct pixels of the direct pixel column cannot be projected into the viewing area facing the display panel after being reflected by the reflective surface of the reflector.

[0013] The indirect pixels of the indirect pixel column are projected by the cylindrical lens grating, and then reflected by the reflective surface of the reflector and projected into the viewing area facing the display panel.

[0014] In the direct pixel column area, each pixel column is arranged in the positive direction in the left-right direction according to the displayed image.

[0015] In the indirect pixel column area, each pixel column is arranged in reverse direction in the left-right direction according to the displayed image.

[0016] The working principle of the present invention is as follows: 1. The viewer can directly see the image in the area covered by the display panel without column lens grating; 2. In the area covered by the cylindrical lens grating of the display panel, the viewer can see the image formed by the direct pixels in the viewing area without a reflector, but cannot see the indirect pixels; 3. In the area covered by the cylindrical lens grating of the display panel, since the mirror image of the indirect pixels through the reflector occupies the spatial position of the direct pixel arrangement in space, the viewer can see the image formed by the indirect pixels in the viewing area through the reflector, and conversely, he cannot see the image formed by the mirror image of the direct pixels; and since in the indirect pixel column area, each pixel column is arranged inversely in the left-right direction according to the displayed image, its mirror image is arranged in the forward direction.

[0017] In summary, in the present invention, in the edge area of ​​the screen, the viewer can not only directly view the direct pixels, but also view the indirect pixels through the reflector, thereby effectively increasing the visible area of ​​the screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention.

[0019] Icon: 100-display panel; 110-direct pixel; 120-indirect pixel; 111-direct pixel mirror; 121-indirect pixel mirror; 200-cylindrical lens grating; 201-cylindrical lens grating mirror; 300-reflector; 400-viewing area.

[0020] It should be understood that the above drawings are only schematic and are not drawn to scale. DETAILED DESCRIPTION

[0021] Please refer to Figure 1 The display device for increasing the visible area provided in this embodiment includes a display panel 100 , a cylindrical lens grating 200 and a reflector 300 .

[0022] The display panel 100 is a mobile phone screen, the cylindrical lens grating 200 and the reflector 300 are mobile phone bracket components, and the mobile phone is installed on the mobile phone bracket.

[0023] The left edge and right edge regions of the pixel region of the display panel 100 are covered with a lenticular lens grating 200 , and the lenticular lens grating 200 is placed parallel to the display panel 100 .

[0024] The distance between the vertices of each cylindrical lens of the cylindrical lens grating 200 and the display panel 100 is equal to the focal length of the cylindrical lens grating 200 .

[0025] The reflector 300 is placed at the left and right ends of the display panel 100 , and its reflective surface is placed at 90 degrees to the display panel 100 and aligned with the left and right edges of the pixel area of ​​the display panel 100 ; the edge of the cylindrical lens grating 200 is aligned with the reflective surface of the reflector 300 .

[0026] In the area where the left and right edge areas of the pixel area of ​​the display panel 100 are covered by the cylindrical lens grating 200, direct pixels 110 and indirect pixels 120 are arranged alternately in columns, and any direct pixel column is parallel to the cylindrical lens grating 200, and any indirect pixel column is also parallel to the cylindrical lens grating 200.

[0027] Assume the focal length of the cylindrical lens grating is 200 f =5 mm, the width of the viewing area 400 is w = 99 mm, cylindrical lens grating 200 pitch is p =1.98 mm, the width of direct pixel row and indirect pixel row is s =1 mm, the distance from the viewing area 400 to the cylindrical lens grating 200 is d =495 mm, then w = s × d / f , ( d +f ) / d =2 s / p .

[0028] The direct pixels 110 of the direct pixel column are directly projected into the viewing area 400 facing the display panel 100 through the cylindrical lens grating 200 .

[0029] The direct pixels 110 of the indirect pixel row will be projected outside the viewing area 400 via the cylindrical lens grating 200 , and therefore cannot be directly projected into the viewing area 400 facing the display panel 100 .

[0030] After being projected by the cylindrical lens grating 200 , the direct pixels 110 of the direct pixel column cannot be projected into the viewing area 400 facing the display panel 100 after being reflected by the reflective surface of the reflector 300 .

[0031] After being projected by the cylindrical lens grating 200 , the indirect pixels 120 of the indirect pixel column are reflected by the reflective surface of the reflector 300 and then projected into the viewing area 400 facing the display panel 100 .

[0032] In the direct pixel column area, each pixel column is arranged in the positive direction in the left-right direction according to the displayed image.

[0033] In the indirect pixel column area, each pixel column is arranged in reverse direction in the left-right direction according to the displayed image.

[0034] The working principle of the present invention is as follows: 1. In the area covered by the lenticular grating of the display panel 100, the viewer can directly see the image; 2. In the area covered by the cylindrical lens grating 200 of the display panel 100, the viewer can see the image formed by the direct pixel 110 in the viewing area 400 without the reflector 300, but cannot see the indirect pixel 120; 3. In the area of ​​the display panel 100 covered by the cylindrical lens grating 200, since the indirect pixel image 121 formed by the indirect pixel 120 through the reflector 300 occupies the spatial position of the original arrangement of the direct pixel 110 in space, it can be projected to the viewing area 400 through the cylindrical lens grating image 201, so the viewer can see the image formed by the indirect pixel 120 in the viewing area through the reflector 300. On the contrary, since the direct pixel image 111 occupies the spatial position of the original indirect pixel 120 in space, it cannot be projected to the viewing area 400 through the cylindrical lens grating image 201, and the viewer cannot see the image formed by the direct pixel 110 through the reflector 300; and since in the indirect pixel column area, each pixel column is arranged in reverse in the left-right direction according to the displayed image, its mirror image is arranged in the forward direction.

[0035] In summary, in the present invention, in the edge area of ​​the screen, the viewer can not only directly view the direct pixels 110 but also view the indirect pixels 120 through the reflector 300, thereby effectively increasing the visible area of ​​the screen.

Claims

1. A display device with an enlarged visible area, characterized in that: The display device for increasing the visible area comprises a display panel, a cylindrical lens grating and a reflector; The left edge and right edge of the pixel area of ​​the display panel are covered with a cylindrical lens grating, and the cylindrical lens grating is placed parallel to the display panel; The distance between the vertices of each cylindrical lens of the cylindrical lens grating and the display panel is equal to the focal length of the cylindrical lens grating; The reflectors are placed at the left and right ends of the display panel, and their reflective surfaces are placed at 90 degrees to the display panel and aligned with the left and right edges of the pixel area of ​​the display panel; the edge of the cylindrical lens grating is aligned with the reflective surface of the reflector; In the area where the left edge and right edge of the pixel area of ​​the display panel are covered with the cylindrical lens grating, direct pixels and indirect pixels are arranged alternately in columns, and any direct pixel column is parallel to the cylindrical lens grating, and any indirect pixel column is also parallel to the cylindrical lens grating; Assume the focal length of the cylindrical lens grating is f , the viewport width is w , the cylindrical lens grating pitch is p , the width of direct pixel column and indirect pixel column is s , the distance from the viewing area to the cylindrical lens grating is d , then w = s × d / f , ( d + f ) / d =2 s / p ; The direct pixels of the direct pixel column are directly projected into the viewing area facing the display panel through the cylindrical lens grating; After being projected by the cylindrical lens grating, the indirect pixels of the indirect pixel column cannot be projected into the viewing area facing the display panel; After being projected by the cylindrical lens grating, the direct pixels of the direct pixel column cannot be projected into the viewing area facing the display panel after being reflected by the reflective surface of the reflector; The indirect pixels of the indirect pixel column are projected by the cylindrical lens grating, and then reflected by the reflective surface of the reflector and projected into the viewing area facing the display panel; In the direct pixel column area, each pixel column is arranged in the left-right direction in the positive direction according to the displayed image; In the indirect pixel column area, each pixel column is arranged in reverse direction in the left-right direction according to the displayed image.

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