JP2022046345A - Display unit - Google Patents

Abstract

To allow a light guide unit of a display unit to normally exert its function.SOLUTION: An extension part (23) of a front cabinet (4) extends from a front face part (22) toward the back side of a display. A light receiving unit (11) of a light guide unit (6) projects from a main body part (14) of the light guide unit (6) toward a display surface. The extension part (23) is in contact with an upper end of a substrate holder (8).SELECTED DRAWING: Figure 8

Description

The present invention relates to a display device.

Some display devices are operated by receiving infrared signal light output from a remote controller (hereinafter, abbreviated as "remote control"). For example, a television device (hereinafter abbreviated as "television") is an example. The television is provided with a light receiving unit that receives infrared signal light from the remote controller.

In Patent Document 1, as an example of such a conventional technique, a display unit for displaying an image on the front surface, a box body having an open surface arranged on the back surface side of the display unit, a front peripheral portion of the display unit, and a peripheral portion on the front side of the display unit. A frame body that covers the peripheral side portion and is connected to the box body, a substrate having a light emitting portion that emits light to the outside of the device and a light receiving portion that receives an operation signal of the remote control device, and the substrate are fixed to the light emitting portion. It has a first light guide unit that guides the light emitted by the light source to the outside and a second light guide unit that guides the operation signal to the light receiving unit, and includes a light guide member fixed to the frame. A display device comprising the above is disclosed.

Japanese Unexamined Patent Publication No. 2017-005348

In the above-mentioned prior art, there is room for the function of the light guide member to be exhibited normally.

One aspect of the present invention has been made in view of the above problems, and an object thereof is to normally exert the function of the light guide unit of the display device.

In order to solve the above-mentioned problems, the display device according to one aspect of the present invention has a display unit, a bottom surface portion arranged below the display unit, and a front surface portion adjacent to the bottom surface portion and having a through hole. A cabinet having an extension portion extending from the front surface portion toward the back surface side of the display portion, a main body portion arranged on the back surface of the cabinet, and the main body portion from the main body portion to the display surface side through the through hole. A light guide portion having a protruding portion and a substrate holder arranged on the back surface of the light guide portion and on which a substrate is mounted are provided, and the extended portion is the upper end of the substrate holder or the main body portion. It is a configuration that corresponds to the upper end of.

According to one aspect of the present invention, the function of the light guide unit of the display device can be normally exhibited.

It is a front view which shows the appearance of the display device which concerns on Embodiment 1 of this invention. It is a figure which enlarges and shows the periphery of the light guide part in a display device. It is a figure which shows the inside of the display device partially. It is a figure which shows the inside of the display device partially. It is a figure which shows the inside of the display device partially. It is a figure which shows the inside of the display device partially. It is a figure which shows the inside of the display device partially. It is sectional drawing which shows the cross section of the inside of a display device. It is a figure which shows the inside of the display device which concerns on Embodiment 2 partially. It is sectional drawing which shows the cross section of the display device which concerns on Embodiment 2. FIG. It is a figure which shows the inside of the display device which concerns on Embodiment 3. FIG. It is a figure which shows the inside of the display device. It is a figure which partially shows the inside of the display device which concerns on Embodiment 4. FIG. It is a figure which shows the inside of the display device partially. It is a figure which shows the inside of the display device partially. It is sectional drawing which shows the cross section of the inside of a display device. It is a figure explaining the success example and the failure example of mounting of the light guide part.

[Embodiment 1]
(Configuration of display device 1)
FIG. 1 is a front view showing the appearance of the display device 1 according to the first embodiment of the present invention. The display device 1 is a device that can be operated by infrared light output from the remote controller. In the present embodiment, the display device 1 is realized as an organic EL television device, but is not limited to this, and is also realized as various devices having a display function such as a PC monitor.

As shown in FIG. 1, the display device 1 mainly includes a display unit 2, a front cabinet 4 (cabinet), and a light guide unit 6. The display unit 2 is a display panel that displays various types of images, and is realized as, for example, an organic EL display panel. The front cabinet 4 is one of the components constituting the housing portion for storing various parts such as the display unit 2 inside the display device 1, and the front cabinet 4 is arranged in front (display surface side) of the housing. Is. Although illustration and description are omitted, the front cabinet 4 constitutes a housing portion together with a back cabinet that covers the back side of the display unit 2. The light guide unit 6 is arranged at a position below the display unit 2 in the front cabinet 4.

FIG. 2 is an enlarged view showing the periphery of the light guide unit 6 in the display device 1. As shown in this figure, a part of the light guide unit 6 is exposed on the surface of the front cabinet 4, and each of them exhibits a function of receiving light or emitting light. In the example of FIG. 2, the light guide unit 6 includes a light receiving unit 11 (projecting portion), a light emitting unit 12 (projecting portion), and a light emitting unit 13 (projecting portion). The light receiving unit 11 is a portion that is responsible for the light receiving function of the light guide unit 6, and the light emitting unit 12 and the light emitting unit 13 are portions that are responsible for the light emitting function of the light guide unit 6. Specifically, the light receiving unit 11 receives infrared light from the remote controller. The light emitting unit 12 and the light emitting unit 13 emit visible light indicating an operating state of the display device 1. Examples of the operating state include a state in which the display device 1 is in operation, a state in which the display device 1 is in standby, and the like.

FIG. 3 is a diagram partially showing the inside of the display device 1. As shown in this figure, the display device 1 includes a display unit 2, a front cabinet 4, a light guide unit 6, a substrate holder 8, and a substrate 10. FIG. 3 illustrates the inside of the display device 1 in a state where the light guide unit 6, the substrate holder 8, and the substrate 10 are expanded.

The front cabinet 4 includes at least a bottom surface portion 21, a front surface portion 22, and an extension portion 23. The bottom surface portion 21 is arranged below the display unit 2 substantially parallel to the mounting surface of the display device 1. The front surface portion 22 is adjacent to the bottom surface portion 21 and is arranged parallel to the display surface of the display unit 2 at a position above the bottom surface portion 21. In the present embodiment, the lower end side of the front surface portion 22 is connected to the front end side of the bottom surface portion 21. The front surface portion 22 has a through hole 24, a through hole 25, and a through hole 26 penetrating the front surface portion 22. The light receiving unit 11, the light emitting unit 12, and the light emitting unit 13, which are a part of the light guide unit 6, are individually inserted into the through hole 24, the through hole 25, and the through hole 26.

The stretched portion 23 has an elongated shape as a whole, and is stretched from a predetermined position on the front surface portion 22 toward a predetermined position on the back surface side of the display portion 2. The stretching portion 23 has a engaging portion 27 that engages with the substrate holder 8. In the example of FIG. 3, the hook-shaped engaging portion 27 is arranged at the tip of the extending portion 23. The engaging portion 27 projects from the tip of the extending portion 23 toward the bottom surface portion 21 of the front cabinet 4.

The light guide unit 6 is made of a material that transmits light, such as a translucent plastic. The light guide unit 6 includes a main body unit 14, a light receiving unit 11, a light emitting unit 12, and a light emitting unit 13. The main body 14 is arranged on the back surface of the front cabinet 4 and extends laterally to the display surface of the display device 1. The light receiving unit 11, the light emitting unit 12, and the light emitting unit 13 all project from the main body unit 14 toward the display surface of the display unit 2.

The board holder 8 is a holder having a board mounting surface on which the board 10 is mounted. The board holder 8 is arranged on the back surface of the light guide unit 6 inside the display device 1. The board holder 8 holds the board 10 mounted on the board mounting surface. The substrate 10 has a light emitting element and a light receiving element (not shown) corresponding to the light emitting function and the light receiving function of the light guide unit 6.

(Assembly of display device 1)
FIG. 4 is a diagram partially showing the inside of the display device 1. At a certain stage when assembling the display device 1, a procedure for mounting the light guide unit 6, the substrate holder 8, and the substrate 10 on the front cabinet 4 is required. At that time, as shown in FIG. 4, the light guide unit 6 is first attached to the front cabinet 4. Specifically, the light receiving unit 11, the light emitting unit 12, and the light emitting unit 13 of the light guide unit 6 are individually inserted into the through hole 24, the through hole 25, and the through hole 26 of the corresponding front cabinet 4. , The light guide portion 6 is fitted into the front portion 22 of the front cabinet 4. At that time, the light guide portion 6 is fitted into the front cabinet 4 in a state where the lower portion of the light guide portion 6 is in contact with the bottom surface portion 21 of the front cabinet 4.

FIG. 5 is a diagram partially showing the inside of the display device 1. As shown in this figure, after mounting the light guide portion 6, the substrate holder 8 is mounted at a position on the back surface side of the light guide portion 6 in the front cabinet 4. At that time, the extension portion 23 is brought into contact with the upper end of the substrate holder 8 so that the substrate holder 8 is brought closer to the light guide portion 6. When the board holder 8 is pushed to the position where the board holder 8 correctly engages with the engaging portion 27, the mounting of the board holder 8 is completed. In this state, the welding pin 31 and the welding pin 32 of the front cabinet 4 are inserted into the pin holes of the substrate holder 8 and protrude onto the substrate mounting surface of the substrate 10.

FIG. 6 is a diagram partially showing the inside of the display device 1. As shown in this figure, after mounting the substrate holder 8, both the welding pin 31 and the welding pin 32 are welded to the substrate mounting surface of the substrate holder 8. FIG. 7 is a diagram partially showing the inside of the display device 1. As shown in this figure, after fixing the board holder 8, the board 10 is mounted on the board mounting surface of the board holder 8. Since the mounting method at that time is general, detailed description thereof will be omitted. This completes the mounting of the light guide unit 6, the substrate holder 8, and the substrate 10.

FIG. 8 is a cross-sectional view showing a cross section inside the display device 1. As shown in this figure, in the display device 1 to which the light guide portion 6, the substrate holder 8, and the substrate 10 are mounted, the stretched portion 23 is in contact with the upper end of the substrate holder 8. Further, the engaging portion 27 of the extending portion 23 is engaged with the substrate mounting surface of the substrate holder 8.

(Advantages of this embodiment)
At the time of assembling the display device 1, the light guide portion 6 is arranged on the bottom surface portion 21 of the front cabinet 4. When the protruding portion of the light guide portion 6 penetrates the through hole of the front cabinet 4, the bottom surface portion 21 of the front cabinet 4 is located below the lower end of the light guide portion 6. Further, the stretched portion 23 is in contact with the upper end of the substrate holder 8. In this way, with the light guide portion 6 covered by the bottom surface portion 21 and the extension portion 23 of the front cabinet 4, the light receiving portion 11, the light emitting portion 12, and the light emitting portion 13 of the light guide portion 6 have a through hole 24 and a through hole. It abuts on each peripheral edge of the 25 and the through hole 26. When the light guide unit 6 is attached, the light receiving unit 11, the light emitting unit 12, and the light emitting unit 13 of the light guide unit 6 press the front surface portion 22 of the front cabinet 4, whereby the front surface portion 22 of the front cabinet 4 is tilted by stress. Try to. However, at this time, since the light guide portion 6 faces the stress directed in a direction other than the front portion 22 of the front cabinet 4 due to the bottom portion and the extending portion 23 of the front cabinet 4, the front portion 22 of the front cabinet 4 does not tilt. .. As a result, it is possible to suppress the occurrence of a mounting error of the light guide unit 6, so that the light guide unit 6 can normally exhibit the light receiving function and the light emitting function.

When the light guide unit 6 and the board holder 8 are mounted on the front cabinet 4, if the board holder 8 is fitted in a position where the board holder 8 correctly engages with the engagement portion 27, the light guide portion 6 and the substrate holder 8 are fronted at the correct angle. It can be attached to the cabinet 4. As a result, when assembling the display device 1, the light guide unit 6 can be mounted on the front cabinet 4 without causing a mounting error of the light guide unit 6. As a result, the light receiving unit 11, the light emitting unit 12, and the light emitting unit 13 are sufficiently well exposed to the front surface portion 22 of the front cabinet 4 without being recessed toward the back of the surface of the front cabinet 4. As a result, in the display device 1 in operation, the light guide unit 6 can normally exhibit the original light receiving function and light emitting function.

[Embodiment 2]
FIG. 9 is a diagram partially showing the inside of the display device 1A according to the second embodiment. As shown in this figure, in this embodiment, the display device 1A includes a front cabinet 4A having two stretched portions 41 and stretched portions 42 arranged at different positions. In the example of FIG. 9, the stretched portion 41 is arranged in the upper part of the corresponding through hole 24, and the stretched portion 42 is arranged in the upper part of the corresponding through hole 25. The stretched portion 41 has a engaging portion 43 arranged at its tip, and the stretched portion 42 has a engaging portion 44 arranged at its tip. The structure and stretching direction of the stretched portion 41 and the stretched portion 42 are the same as the structure and stretching direction of the stretched portion 23 according to the first embodiment.

FIG. 10 is a cross-sectional view showing a cross section of the display device 1A according to the second embodiment. As shown in this figure, the stretched portion 41 is arranged above the light receiving portion 11 of the light guide portion 6 and is in contact with the upper part of the substrate holder 8. The engagement unit 43 engages with the substrate holder 8 above the light receiving unit 11. Although not shown, the stretched portion 42 is arranged above the light emitting portion 12 of the light guide portion 6 and is in contact with the upper part of the substrate holder 8. The engagement unit 44 engages with the substrate holder 8 above the light emitting unit 12. As described above, in the present embodiment, the substrate holder 8 is in contact with the two stretched portions 41 and the stretched portion 42. Further, the substrate holder 8 is engaged with the two engagement portions 43 and the engagement portion 44.

In the present embodiment, when the user pushes the light receiving portion 11 exposed from the through hole 24, the engaging portion 43 of the extending portion 41 located at the upper part of the through hole 24 acts on the light guide portion 6 portion pushed by the user. The power is offset. This makes it possible to more effectively prevent the light guide unit 6 from moving inside the display device 1. Similarly, when the user pushes the light emitting portion 12 exposed from the through hole 25, the force acting on the light guide portion 6 pushed by the user is applied by the engaging portion 44 of the extending portion 42 located at the upper part of the through hole 25. Will be offset. This makes it possible to more effectively prevent the light guide unit 6 from moving inside the display device 1.

Further, in the present embodiment, since the substrate holder 8 is supported by the two extension portions 41 and the extension portion 42, the light guide portion 6 arranged in front of the substrate holder 8 can be more firmly fixed to the front cabinet 4A. ..

In this embodiment, the front cabinet 4A may have two stretched portions 41 and a stretched portion 42 located above the through hole 24 or a position different from the through hole 25. Alternatively, the front cabinet 4A may have a plurality of three or more extension portions 23. In either case, the light guide portion 6 arranged in front of the substrate holder 8 can be more firmly fixed to the front cabinet 4A.

[Embodiment 3]
FIG. 11 is a diagram showing the inside of the display device 1B according to the third embodiment. The display device 1B according to the present embodiment further has a front surface portion 51 (first side surface portion), a side surface portion 52 (second side surface portion), a rib 53 (first rib), and a rib 54 (second rib). It is equipped with a cabinet 4B. In the first and second embodiments, the front cabinet 4 (and the front cabinet 4A) has the side surface portion 51 and the side surface portion 52, which is the same as the present embodiment. The fact that the side surface portion 51 and the side surface portion 52 are not referred to in the other embodiments other than the present embodiment is merely that the reference is not necessary for explaining the characteristics of the display device 1 according to these embodiments.

In the front cabinet 4B, the side surface portion 51 and the side surface portion 52 are arranged at positions facing each other and adjacent to the bottom surface portion 21 and the front surface portion 22. The rib 53 is arranged on the side surface portion 51 and protrudes from the side surface portion 51 toward the side surface portion 52. Further, the rib 53 abuts on the board mounting surface of the board holder 8 mounted on the front cabinet 4B. The rib 54 is arranged on the side surface portion 52, and protrudes from the side surface portion 52 toward the side surface portion 51. Further, the rib 54 abuts on the board mounting surface of the board holder 8 mounted on the front cabinet 4B. In this way, in the board holder 8 mounted on the front cabinet 4B, both ends of the board holder 8 are supported by the ribs 53 and 54.

FIG. 12 is a diagram showing the inside of the display device 1B. As shown in this figure, the front cabinet 4B does not have a welding pin 31 and a welding pin 32. Therefore, when assembling the display device 1B, the welding work after mounting the substrate holder 8 is unnecessary.

In the present embodiment, since the light guide portion 6 and the substrate holder 8 are supported by a plurality of structures including the stretch portion 23, the rib 53, and the rib 54, the light guide portion 6 and the substrate holder 8 are more firmly fixed. Can be done. Further, since the fixing by the stretched portion 23, the rib 53, and the rib 54 is sufficiently strong, it is possible to save the trouble of separately fixing the substrate holder 8 to the front cabinet 4B by welding. Further, the front cabinet 4B having a simple structure of ribs 53 and ribs 54 can have a simpler structure than the front cabinet 4A having the stretched portion 41 and the stretched portion 42 according to the second embodiment.

[Embodiment 4]
FIG. 13 is a diagram partially showing the inside of the display device 1C according to the fourth embodiment. As shown in this figure, the display device 1C according to the present embodiment has a light guide portion 6C that abuts on the stretched portion 23. In the light guide portion 6C, a part of the central portion of the main body portion 14 of the light guide portion 6C protrudes in the upper direction of the light guide portion 6C from other portions different from the central portion of the main body portion 14. More specifically, a part of the central portion is stretched to a position corresponding to the stretched portion 23. As described above, in the present embodiment, the stretched portion 23 is in contact with the upper end of the main body portion 14.

The light guide unit 6C further includes an upper surface unit 15 in addition to the light receiving unit 11, the light emitting unit 12, and the light emitting unit 13. The upper surface portion 15 extends in the internal direction of the display device 1C from the tip of the central portion of the main body portion 14, that is, the contact position with the extending portion 23. The upper surface portion 15 is arranged substantially parallel to the bottom surface portion 21 of the front cabinet 4. The extension portion 23 of the front cabinet 4B is arranged at the center position of the light guide portion 6C and is in contact with the upper surface portion 15. The engaging portion 27 of the extending portion 23 is engaged with the tip portion of the upper surface portion 15. As described above, in the present embodiment, the light guide unit 6C is engaged with the engagement unit 27 instead of the substrate holder 8.

FIG. 14 is a diagram partially showing the inside of the display device 1C. As shown in this figure, the display device 1C includes a substrate holder 8C whose central portion is slightly recessed. The structure of the substrate holder 8C is basically the same as that of the substrate holder 8 according to each of the other embodiments, but the central portion at the upper end thereof is slightly recessed. The range with the dent is equal to or larger than the width of the upper surface portion 15 of the light guide portion 6C. By having such a recess, it is possible to prevent the upper portion of the substrate holder 8 from colliding with the upper surface portion 15 of the light guide portion 6C when the substrate holder 8 is mounted.

FIG. 15 is a diagram partially showing the inside of the display device 1C. As shown in this figure, the method of mounting the substrate 10 on the substrate holder 8C is the same as that of each of the above-described embodiments, and therefore detailed description thereof will be omitted. FIG. 16 is a cross-sectional view showing a cross section inside the display device 1C. As shown in this figure, in the display device 1C to which the light guide portion 6C, the substrate holder 8C, and the substrate 10 are mounted, the stretched portion 23 is mounted on the upper end of the main body portion 14 of the light guide portion 6C and the surface of the upper surface portion 15. It is in contact. Further, the engaging portion 27 of the extending portion 23 is engaged with the upper surface portion 15 of the light guide portion 6C at the tip end.

FIG. 17 is a diagram illustrating an example of success and an example of failure in mounting the light guide unit 6C. 1010 of FIG. 17 shows a correct mounting example of the light guide unit 6C, and 1020 and 1030 show a mounting error example of the light guide unit 6C. As shown in 1010 of this figure, if the light guide portion 6C is fitted into the front cabinet 4 so that the upper surface portion 15 of the light guide portion 6C correctly engages with the engagement portion 27, the light guide portion 6C can be fitted to the front cabinet 4 at the correct angle. Can be attached to. In this case, the light receiving portion 11 of the light guide portion 6C is inserted straight into the through hole 24. In 1020 of FIG. 17, since the upper surface portion 15 is caught by the engaging portion 27 and does not engage correctly, the light guide portion 6C is incompletely mounted. That is, the light receiving portion 11 does not reach the exposed surface of the through hole 24, and remains at a recessed position of the front cabinet 4. Therefore, there may be a problem that the function of receiving infrared light of the remote controller is lowered. In 1030 of FIG. 17, since the light guide portion 6C is erroneously mounted obliquely with respect to the front surface portion 22 of the front cabinet 4, the tip of the light receiving portion 11 does not face the front direction of the display unit 2. In this case as well, as in the example shown in 1020, there may be a problem that the function of receiving infrared light of the remote controller is lowered.

〔summary〕
The display device according to the first aspect of the present invention includes a display unit, a bottom surface portion arranged below the display unit, a front surface portion adjacent to the bottom surface portion and having a through hole, and the front surface portion to the display unit. A cabinet having an extending portion extending toward the back surface side of the cabinet, a main body portion arranged on the back surface of the cabinet, and a protruding portion protruding from the main body portion to the display surface side of the display portion through the through hole. It is provided with a light guide portion having a light guide portion and a substrate holder arranged on the back surface of the light guide portion and on which a substrate is mounted, and the extension portion is in contact with the upper end of the substrate holder or the upper end of the main body portion. It is a configuration that is.

In the display device according to the second aspect of the present invention, in the first aspect, the stretched portion is in contact with the upper end of the substrate holder, and the stretched portion has a engaging portion that engages with the substrate holder. ..

In the display device according to the third aspect of the present invention, in the second aspect, the stretched portion is arranged in the upper part of the through hole.

The display device according to the fourth aspect of the present invention has a configuration in which the cabinet has a plurality of the extending portions in any one of the first to third aspects.

In the display device according to the fifth aspect of the present invention, in any one of the first to fourth aspects, the cabinet has a first side surface portion and a second side surface portion adjacent to the bottom surface portion, and the first side surface portion to the first. The first rib that protrudes to the side surface portion and abuts on the substrate mounting surface of the substrate holder, and the first rib that projects from the second side surface portion toward the first side surface portion and abuts on the substrate mounting surface of the substrate holder. It is a configuration having two ribs.

[Additional notes]
The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims, and the embodiments obtained by appropriately combining the technical means disclosed in the different embodiments. Is also included in the technical scope of the present invention. Further, by combining the technical means disclosed in each embodiment, new technical features can be formed.

1, 1A, 1B, 1C Display device 2 Display unit 4, 4A, 4B Front cabinet 6, 6C Light guide unit 8, 8C Board holder 10 Substrate 11 Light receiving unit 12, 13 Light emitting unit 14 Main body 15 Top surface 21 Bottom surface 22 Front parts 23, 41, 42 Stretched parts 24, 25, 26 Through holes 27, 43, 44 Mating parts 31, 32 Welding pins 51, 52 Side parts 53, 54 Ribs

Claims (5)

Display and
A cabinet having a bottom surface portion arranged below the display portion, a front surface portion adjacent to the bottom surface portion and having a through hole, and an extension portion extending from the front surface portion toward the back surface side of the display portion. ,
A light guide portion having a main body portion arranged on the back surface of the cabinet and a protruding portion protruding from the main body portion toward the display surface side of the display portion through the through hole.
It is provided with a substrate holder that is arranged on the back surface of the light guide and on which the substrate is mounted.
A display device characterized in that the stretched portion is in contact with the upper end of the substrate holder or the upper end of the main body portion. The stretched portion is in contact with the upper end of the substrate holder.
The display device according to claim 1, wherein the stretched portion has a engaging portion that engages with the substrate holder. The display device according to claim 2, wherein the stretched portion is arranged above the through hole. The display device according to any one of claims 1 to 3, wherein the cabinet has a plurality of the stretched portions. The cabinet is
The first side surface portion and the second side surface portion adjacent to the bottom surface portion,
A first rib that protrudes from the first side surface portion toward the second side surface portion and abuts on the substrate mounting surface of the substrate holder.
The invention according to any one of claims 1 to 4, further comprising a second rib that protrudes from the second side surface portion toward the first side surface portion and that abuts on the substrate mounting surface of the substrate holder. Display device.

Images