Display device and optical module

Abstract

A display device includes a casing assembly, an optical module and a display panel. The casing assembly includes a viewing window formed by a bezel. The optical module is disposed in the casing assembly and includes an optical assembly, a reflection sheet and a receiver assembly. The reflection sheet is located farther away from the viewing window than the optical assembly. The reflection sheet is provided with a plurality of light penetration holes. The light penetration holes are located in a visible area on the reflection sheet where the viewing window is projected. The receiver assembly is located at one side of the reflection sheet located farther away from the optical assembly. The receiver assembly corresponds to the light penetration holes. The display panel is located in the casing assembly and is located closer to the viewing window than the optical assembly.

Description

[Technical Field]

[0001] This invention relates to a display device and an optical module. [Previous Technology]

[0002] In current commercially available monitors, to enable the monitor to receive light signals sent by a remote control and thus be controlled by the remote, the receiver for receiving the light signals is generally placed at the bottom of the monitor's bezel. However, placing the receiver at the bottom of the monitor's bezel results in the bottom of the bezel being significantly wider than the width of other parts of the bezel (such as the sides or top), thus failing to meet the requirement of a narrow bezel. In view of this, researchers in the field are working to solve the aforementioned problem. [Summary of the Invention]

[0003] The present invention provides a display device and an optical module that can meet the requirement of narrow bezels.

[0004] One embodiment of the present invention discloses a display device comprising a housing, an optical module, and a display panel. The housing includes a viewing window surrounded by a frame. The optical module is disposed within the housing and includes an optical component, a reflector, and a receiver component. The reflector is located further away from the viewing window than the optical component. The reflector has a plurality of light-transmitting holes located within a visible area projected from the viewing window onto the reflector. The receiver component is located on the side of the reflector away from the optical component and is disposed corresponding to the light-transmitting holes. The display panel is disposed within the housing and closer to the viewing window than the optical component.

[0005] Another embodiment of the present invention discloses an optical module comprising an optical component, a reflective sheet, and a receiver assembly. The reflective sheet is located on one side of the optical component and has a plurality of light-transmitting holes located within a visible area of ​​the reflective sheet. The receiver assembly is located on the side of the reflective sheet away from the optical component and corresponds to the light-transmitting holes.

[0006] Another embodiment of the present invention discloses an optical module suitable for use with a receiver assembly, comprising an optical component and a reflective sheet. The reflective sheet is located on one side of the optical component and has a plurality of light-transmitting holes located within a visible area of ​​the reflective sheet, through which the receiver assembly is adapted to receive light.

[0007] According to the display device and optical module disclosed in the above embodiments, by having the receiver assembly disposed inside the housing and located on the side of the reflector away from the optical assembly, and the receiver assembly corresponding to the light-transmitting holes in the visible area of ​​the window projected onto the reflector to receive light that penetrates the display panel, the optical assembly and the reflector, the receiver assembly is not disposed on the bezel of the housing. Therefore, the width of the bezel of the housing does not need to be increased to accommodate the receiver assembly, which helps to meet the requirement of a narrow bezel for the display device.

[0008] The above description of the content of the present invention and the following description of the embodiments are used to demonstrate and explain the principles of the present invention, and to provide a further explanation of the scope of the patent application of the present invention.

Implementation Method

[0009] Please refer to Figures 1 and 2. Figure 1 is a perspective view of a display device disclosed according to a first embodiment of the present invention. Figure 2 is an exploded view of the display device of Figure 1.

[0010] In this embodiment, the display device 1 is, for example, a liquid crystal display. The display device 1 includes a housing 10, an optical module 20, and a display panel 30.

[0011] Next, please refer to Figures 2 and 3, where Figure 3 is a partial cross-sectional view of the display device in Figure 1.

[0012] The housing 10 includes an outer shell 11 and a support frame 12. The outer shell 11 includes a back cover 111 and a frame 112, with the back cover 111 connected to the frame 112. The frame 112 surrounds to form a viewing window W. The support frame 12 is fixed inside the outer shell 11. The support frame 12 includes a first surface 121, a second surface 122, and a clearance hole 123. The first surface 121 faces the viewing window W and is opposite to the second surface 122, and the clearance hole 123 passes through the first surface 121 and the second surface 122.

[0013] The optical module 20 is disposed within the housing 11. The optical module 20 includes an optical component 21, a reflector 22, and a receiver component 23. In addition, the optical module 20 may also include an assembly frame 24.

[0014] The optical component 21 is closer to the viewing window W than the support frame 12. The optical component 21 includes, for example but not limited to, stacked prism plates 211, 212, diffuser plate 213, and light guide plate 214. The prism plates 211, 212, diffuser plate 213, and light guide plate 214 are arranged sequentially along the viewing window W toward the support frame 12. The reflective sheet 22 is farther away from the viewing window W than the optical component 21, and the reflective sheet 22 is located between the light guide plate 214 of the optical component 21 and the support frame 12 and is disposed on the first surface 121 of the support frame 12.

[0015] Next, please refer to Figures 3 to 5. Figure 4 is a front view of the display device of Figure 1, omitting the display panel and optical components. Figure 5 is a partially enlarged front view of region X of Figure 4.

[0016] The reflective sheet 22 is provided with a plurality of light-transmitting holes H, which are located within a visible area VA projected onto the reflective sheet 22 by the viewing window W. The structure of the reflective sheet 22 will be described below with an example. The reflective sheet 22 includes a main body 221, and the light-transmitting holes H are directly disposed on the main body 221. The main body 221 of the reflective sheet 22 includes a light-transmitting hole setting area A, which is located in the central region of the main body 221, and the light-transmitting hole setting area A is a polygonal region, such as an octagonal region. Two of these light-transmitting holes H are located outside the light-transmitting hole setting area A and on opposite sides of the light-transmitting hole setting area A, while the others are located inside the light-transmitting hole setting area A. That is, these light-transmitting holes H surround the light-transmitting hole setting area A on the reflective sheet 22. These light-transmitting holes H are arranged in an array, and the center distance P between the two nearest light-transmitting holes H is not greater than 1.0 mm. In other words, the distance P between the centers of the nearest two light-transmitting holes H is no greater than 1.0 mm. The aperture D of these light-transmitting holes H is no less than 0.6 mm and no greater than 0.8 mm.

[0017] The receiver assembly 23 includes, for example, a circuit board 231 and a receiver 232 disposed on the circuit board 231. The circuit board 231 is fixed to the second surface 122 of the support frame 12 via an assembly frame 24. The receiver 232 corresponds to the light-transmitting holes H of the reflector 22 through clearance holes 123. The receiving area R of the receiver 232 projected onto the reflector 22 overlaps with the light-transmitting hole setting area A surrounded by the light-transmitting holes H, and the area R of the receiving area of ​​the receiver 232 projected onto the reflector 22 is smaller than the area of ​​the light-transmitting hole setting area A surrounded by the light-transmitting holes H.

[0018] As shown in Figures 2 and 3, the display panel 30 is, for example, a liquid crystal display panel 30. The display panel 30 is disposed inside the housing 11 and is closer to the viewing window W than the optical components 21.

[0019] In this embodiment, the receiver assembly 23 is used to receive light emitted from the remote control. For example, the remote control is an infrared remote control, and the receiver assembly 23 is an infrared receiver assembly 23. The infrared light emitted by the remote control penetrates the light-transmitting hole H of the display panel 30, the optical assembly 21, and the reflector 22, and is received by the receiver 232 of the receiver assembly 23.

[0020] In this embodiment, by having the receiver assembly 23 disposed inside the housing 10 and located on the side of the reflector 22 away from the optical component 21, and the receiver assembly 23 corresponding to the light-transmitting holes H in the visible area VA projected onto the reflector 22 by the viewing window W, in order to receive the light that penetrates the display panel 30, the optical component 21 and the reflector 22, the receiver assembly 23 is not disposed on the frame 112 of the housing 10. Therefore, the width of the frame 112 of the housing 10 does not need to be increased to accommodate the receiver assembly 23, which helps to meet the requirement of the narrow frame 112 of the display device 1.

[0021] In this embodiment, by arranging these light-transmitting holes H in an array, light can pass through more easily than with a reflective sheet without light-transmitting holes, allowing the receiver 232 to receive light from a greater distance to meet the requirements. Simulation results show that in a display with a reflective sheet without light-transmitting holes, the receiver 232 can only receive light from a maximum distance of 1.8 meters at the front and only from a maximum distance of 0.6 meters at the left and right sides; in the display device 1 with a reflective sheet 22 having light-transmitting holes H in this embodiment, the receiver 232 can receive light from a maximum distance of 10 meters at the front and from a maximum distance of 6 meters at the left and right sides.

[0022] In this embodiment, by arranging these light-transmitting holes H in an array, compared to a reflective sheet with a single large-sized light-transmitting hole, the display device 1 can avoid the presence of clearly visible black spots in the image, thus affecting image quality. Furthermore, by arranging the aperture D of these light-transmitting holes H to be no greater than 0.8 mm, the display device 1 can further avoid the presence of clearly visible black spots in the image.

[0023] In this embodiment, by configuring the aperture D of these light-transmitting holes H to be not less than 0.6 mm, it is convenient to process and form the light-transmitting holes H.

[0024] In this embodiment, the configuration that the center distance P between the two nearest light-transmitting holes H is no greater than 1.0 mm ensures that the light received by the receiver 232 meets the requirements.

[0025] It should be noted that the aperture D of these light-transmitting holes H is not limited to the range mentioned above. If other structures can prevent black spots from appearing in the image, or if the manufacturing process can easily produce smaller light-transmitting holes H, the aperture of these light-transmitting holes H can be greater than 0.8 mm or less than 0.6 mm. In addition, the center-to-center distance P between the two nearest light-transmitting holes H is not limited to no more than 1.0 mm, but can be adjusted according to requirements. Furthermore, these light-transmitting holes H are not limited to being arranged in an array, but can be adjusted according to requirements.

[0026] In this embodiment, the area R on which the receiving range of the receiver 232 is projected onto the reflective sheet 22 overlaps with the light-transmitting hole area A surrounded by these light-transmitting holes H, and the area of ​​the area R on which the receiving range of the receiver 232 is projected onto the reflective sheet 22 is smaller than the area of ​​the light-transmitting hole area A surrounded by these light-transmitting holes H, thus avoiding insufficient number of light-transmitting holes H in the area R on which the receiving range of the receiver 232 is projected onto the reflective sheet 22 due to assembly tolerances. In one embodiment, if there is no assembly tolerance issue, the area of ​​the area on which the receiving range of the receiver is projected onto the reflective sheet can be equal to the area of ​​the light-transmitting hole area surrounded by these light-transmitting holes.

[0027] In this embodiment, by means of the light-transmitting hole setting area A of the reflective sheet 22 being located in the central region of the main body portion 221 of the reflective sheet 22, and the arrangement of these light-transmitting holes H being set in the light-transmitting hole setting area A of the main body portion 221, the receiver 232 can achieve a balance in its ability to receive light from different directions.

[0028] It should be noted that the position of the light-transmitting hole setting area A of the reflector 22 is not limited to the central area of ​​the main body 221 of the reflector 22, but can be adjusted to other areas of the main body 221 of the reflector 22 as needed.

[0029] In this embodiment, by using the light-transmitting hole setting area A as a polygonal area, two of these light-transmitting holes H are located outside the light-transmitting hole setting area A and on opposite sides of the light-transmitting hole setting area A, and the other light-transmitting holes H are located inside the light-transmitting hole setting area A, the arrangement helps to identify the direction of the reflective sheet 22 so as to facilitate assembly.

[0030] It should be noted that the light-transmitting hole setting area A is not limited to a polygonal area, but can be an area of ​​any shape.

[0031] Next, please refer to Figures 6 and 7. Figure 6 is a partial perspective view of the reflective sheet disclosed according to the second embodiment of the present invention. Figure 7 is a partial exploded view of the reflective sheet of Figure 6.

[0032] The reflector 22a of this embodiment is similar to the reflector 22 of the above embodiment and can replace the reflector 22 of the above embodiment. The following mainly describes the differences between the two, while the same parts will not be described again.

[0033] In this embodiment, the reflective sheet 22a includes a main body portion 221a and an attachment portion 222a. The main body portion 221a has a hollow area HA, which may be, for example, but is not limited to, a hole located in the central region of the main body portion 221a. The attachment portion 222a is attached to the main body portion 221a, and the light-transmitting holes H of the reflective sheet 22a are disposed on the attachment portion 222a, and these light-transmitting holes H correspond to the hollow area HA of the main body portion 221a.

[0034] According to the display device and optical module disclosed in the above embodiments, by having the receiver assembly disposed inside the housing and located on the side of the reflector away from the optical assembly, and the receiver assembly corresponding to the light-transmitting holes in the visible area projected onto the reflector by the viewing window, in order to receive light that penetrates the display panel, the optical assembly and the reflector, the receiver assembly is not disposed on the bezel of the housing. Therefore, the width of the bezel of the housing does not need to be increased to accommodate the receiver assembly, which helps to meet the requirement of a narrow bezel for the display device.

[0035] Although the present invention has been disclosed above with reference to the preferred embodiments described above, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of patent protection of the present invention shall be determined by the scope of the patent application attached to this specification. [Simplified Explanation of the Diagram]

[0036] FIG1 is a perspective view of the display device disclosed according to the first embodiment of the present invention. FIG2 is an exploded view of the display device of FIG1. ​​FIG3 is a partial cross-sectional view of the display device of FIG1. ​​FIG4 is a front view of the display device of FIG1 omitting the display panel and optical components. FIG5 is a partially enlarged front view of region X of FIG4. FIG6 is a partial perspective view of the reflective sheet disclosed according to the second embodiment of the present invention. FIG7 is a partial exploded view of the reflective sheet of FIG6.

Claims

1. A display device comprising: a housing including a viewing window surrounded by a frame; an optical module disposed within the housing and including: an optical component; a reflector located away from the viewing window from the optical component, the reflector having a plurality of light-transmitting holes located in a visible area projected from the viewing window onto the reflector; a receiver assembly located on the side of the reflector away from the optical component, the receiver assembly being disposed corresponding to the light-transmitting holes; and a display panel disposed within the housing and closer to the viewing window than the optical component.

2. The display device as claimed in claim 1, wherein the light-transmitting holes are located in the central region of the reflective sheet.

3. The display device as claimed in claim 1, wherein the light-transmitting holes are arranged in an array.

4. The display device as claimed in claim 3, wherein the center-to-center distance between the two nearest light-transmitting holes is not greater than 1.0 mm.

5. The display device as claimed in claim 3, wherein the aperture of the light-transmitting holes is not less than 0.6 mm and not more than 0.8 mm.

6. The display device as claimed in claim 1, wherein the area of ​​the receiving range of the receiver assembly projected onto the reflective sheet overlaps with the area surrounded by the light-transmitting holes, and the area of ​​the area of ​​the receiving range of the receiver assembly projected onto the reflective sheet is smaller than the area of ​​the area surrounded by the light-transmitting holes.

7. The display device as claimed in claim 1, wherein the reflective sheet includes a main body and an attachment portion, the main body having a cutout area, the attachment portion being attached to the main body, and the light-transmitting holes being disposed on the attachment portion and corresponding to the cutout area.

8. The display device as claimed in claim 1, wherein the reflective sheet includes a main body portion and the light-transmitting holes are directly disposed on the main body portion.

9. The display device as claimed in claim 1, wherein the light-transmitting holes surround a light-transmitting hole setting area on the reflective sheet, the light-transmitting hole setting area is a polygonal area, two of the light-transmitting holes are located outside the light-transmitting hole setting area and on opposite sides of the light-transmitting hole setting area, and the others of the light-transmitting holes are located inside the light-transmitting hole setting area.

10. The display device as claimed in claim 1, wherein the housing includes an outer shell and a support frame fixed within the outer shell, the support frame including a first surface, a second surface and a clearance hole, the first surface facing the viewing window and facing away from the second surface, the clearance hole penetrating the first surface and the second surface, the reflector being disposed on the first surface of the support frame, the optical module further including an assembly frame, the receiver assembly being fixed to the second surface of the support frame through the assembly frame, and the receiver assembly corresponding to the light-transmitting holes of the reflector through the clearance hole.

11. The display device as claimed in claim 1, wherein the receiver assembly is an infrared receiver assembly.

12. An optical module comprising: an optical component; a reflector sheet located on one side of the optical component, the reflector sheet having a plurality of light-transmitting holes located within a visible area of ​​the reflector sheet; and a receiver assembly located on the side of the reflector sheet away from the optical component, the receiver assembly corresponding to the light-transmitting holes.

13. The optical module as described in claim 12, wherein the light-transmitting holes are located in the central region of the reflector.

14. The optical module as described in claim 12, wherein the light-transmitting holes are arranged in an array.

15. The optical module as claimed in claim 14, wherein the center-to-center distance between the two nearest light-transmitting holes is no greater than 1.0 mm.

16. The optical module as described in claim 14, wherein the aperture of the light-transmitting holes is not less than 0.6 mm and not more than 0.8 mm.

17. The optical module as claimed in claim 12, wherein the area of ​​the receiving range of the receiver assembly projected onto the reflector overlaps with the area surrounded by the light-transmitting holes, and the area of ​​the area of ​​the receiving range of the receiver assembly projected onto the reflector is smaller than the area of ​​the area surrounded by the light-transmitting holes.

18. The optical module as claimed in claim 12, wherein the reflector includes a main body and an attachment portion, the main body having a cutout area, the attachment portion being attached to the main body, and the light-transmitting holes being disposed on the attachment portion and corresponding to the cutout area.

19. The optical module as claimed in claim 12, wherein the reflector includes a main body portion and the light-transmitting holes are directly disposed on the main body portion.

20. An optical module adapted to cooperate with a receiver assembly, comprising: an optical component; and a reflector located on one side of the optical component, the reflector having a plurality of light-transmitting holes located within a visible area of ​​the reflector, the receiver assembly being adapted to receive light through the light-transmitting holes.

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