CN102800250A - Display device - Google Patents

Abstract

The invention discloses a display device, which comprises a light guide plate, a light source, a reflector plate and a reflector, wherein the light source is positioned on one side of the light guide plate, the reflector plate is positioned below the light guide plate, the reflector plate is sequentially provided with a first blocking arm, a second blocking arm and a third blocking arm from top to bottom, the light guide plate is clamped between the first blocking arm and the second blocking arm, and the reflector plate is clamped between the light guide plate and the third blocking arm. The invention directly utilizes the baffle arm to fix the light guide plate, the light source and the reflector plate without utilizing an additional fixing piece, thereby reducing the assembly cost of the display device.

Description

display device

technical field

The invention relates to a display device of an electronic product.

Background technique

The display devices of existing electronic products generally include a frame (frame), a backplane (bezel), a light guide plate (LGP), a light source (LED), a reflector (reflector), an optical film (optical films) and a display panel (cell). ). In the above display device, the reflective sheet is arranged on the back plate, the light source is located on one side of the light guide plate, and the light source and the light guide plate are located above the reflective sheet, the optical film is located above the light guide plate, and the frame is fixed on the back plate and surrounds the above-mentioned The reflection sheet, the light source, the light guide plate and the optical film, and the display panel are arranged above the frame.

When the above-mentioned display device is assembled, the light source is usually fixed on the backplane by sticking or locking, and then the reflector, the light guide plate and the optical film are fixed in order by stacking, and then the frame is assembled, and finally Put on the display panel to get the display device.

However, since the components such as the backplane, the light guide plate, and the reflection sheet of the display device are all single, multiple fixing pieces are required to support and fix the above components during assembly, which increases the assembly cost of the display device.

Contents of the invention

In view of this, the purpose of the present invention is to provide a display device with low assembly cost.

The present invention mainly provides a display device, which includes a light guide plate, a light source, a reflection sheet and a reflection cover. A blocking arm, a second blocking arm and a third blocking arm, the light guide plate is sandwiched between the first blocking arm and the second blocking arm, and the reflective sheet is sandwiched between the light guide plate and the third blocking arm between.

In one embodiment of the present invention, the reflector further includes a mounting portion, and an accommodating space is formed in the mounting portion, the light source is arranged in the accommodating space, the first blocking arm and the second blocking arm are controlled by the The mounting part is formed by extending outwards.

In an embodiment of the present invention, the reflector further includes a first fixing portion and a second fixing portion, the first fixing portion is connected to the first blocking arm, the second fixing portion is connected to the second blocking arm, The light guide plate is respectively provided with a first fixing groove and a second fixing groove corresponding to the first fixing part and the second fixing part.

In one embodiment of the present invention, the first fixing part is L-shaped, T-shaped or hook-shaped, and the second fixing part is strip-shaped.

In one embodiment of the present invention, the first fixing portion is formed by extending downwards from the upper surface of the light guide plate, and the second fixing portion is elongated.

In one embodiment of the present invention, the first fixing part is in the shape of a golf club, and the second fixing part is in the shape of a strip.

In an embodiment of the present invention, neither the first fixing groove nor the second fixing groove penetrates through the light guide plate.

In one embodiment of the present invention, the display device further includes an optical film and a display panel, and the reflector further includes a fourth stop arm, and the distance between the fourth stop arm and the first stop arm is equal to that of the optical film. and the thickness of the display panel.

In one embodiment of the present invention, a part of the reflective sheet is bent upward along the edge of the light guide plate, and the uppermost layer of the optical film is bent downward along the edge of the light guide plate.

In one embodiment of the present invention, the edge of the light guide plate is provided with a number of openings, and the front cover of an electronic product is provided with a number of fixing posts corresponding to these openings, and a locking part is provided corresponding to the display panel. The rear cover of the back cover is provided with a number of through holes corresponding to the opening, and a number of fixing elements pass through these through holes and openings and are fixed to these fixing columns, so as to fix the display panel card and the optical film to the card part of the light guide plate and the front cover between.

To sum up, the display device of the present invention fixes the corresponding light source, light guide plate and reflection sheet by arranging accommodating space and blocking arm on the reflector, and sets corresponding fixing parts and fixing parts on the reflector and light guide plate. The grooves are used to further fix the light guide plate, so that each independent component of the display device does not need to be fixed by additional fixing parts during the assembly process, which saves the assembly cost of the display device.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic cross-sectional view of a first embodiment of a display device of the present invention.

FIG. 2 is a schematic side view of the reflector in the first embodiment of the display device of the present invention.

FIG. 3 is a schematic side view of the light guide plate in the first embodiment of the display device of the present invention.

FIG. 4 is a schematic front view of the light guide plate in the first embodiment of the display device of the present invention.

5 to 11 are schematic diagrams of the assembly process of the first embodiment of the inventive display device.

FIG. 12 is a schematic top view of FIG. 11 .

FIG. 13 is a schematic side view of the light guide plate in the second embodiment of the display device of the present invention.

FIG. 14 is a schematic side view of the light guide plate in the third embodiment of the display device of the present invention.

FIG. 15 is a schematic side view of the light guide plate in the fourth embodiment of the display device of the present invention.

FIG. 16 is a schematic side view of the light guide plate in the fifth embodiment of the display device of the present invention.

FIG. 17 is a schematic side view of the light guide plate in the sixth embodiment of the display device of the present invention.

FIG. 18 is a schematic side view of the light guide plate in the seventh embodiment of the display device of the present invention.

FIG. 19 is a schematic side view of the light guide plate in the eighth embodiment of the display device of the present invention.

FIG. 20 is a schematic side view of the light guide plate in the ninth embodiment of the display device of the present invention.

FIG. 21 is a schematic diagram of the connection between the display device and the electronic product of the present invention.

FIG. 22 is a schematic cross-sectional view along line XXII in FIG. 21 .

FIG. 23 is a schematic cross-sectional view along line XXIII in FIG. 21 .

Detailed ways

In order to further explain the technical means and effects of the present invention to achieve the intended purpose of the invention, the specific implementation, structure, features and effects of the display device proposed according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments. The description is as follows.

FIG. 1 is a schematic cross-sectional view of a first embodiment of a display device of the present invention. As shown in FIG. 1 , the display device of this embodiment includes a reflector 10 , a light guide plate 20 , a light source 30 , a reflector 40 , an optical film 50 and a display panel 60 . Wherein, the light source 30 is disposed on one side of the light guide plate 20, the reflection sheet 40 is disposed below the light guide plate 20, the optical film 50 is disposed above the light guide plate 20, the display panel 60 is disposed above the optical film 50, and the light guide plate 20, The light source 30 , the reflector 40 , the optical film 50 and the display panel 60 are all assembled into the reflector 10 . The reflection cover 10 and the light guide plate 20 will be described respectively below.

FIG. 2 is a schematic diagram of the reflector in FIG. 1 . As shown in FIG. 2 , the reflector 10 includes a first installation portion 11 , a second installation portion 12 and a third installation portion 13 .

The first installation part 11 is a rectangular frame body, the middle part of which one side of the above-mentioned rectangular frame body has an opening 111, and the interior of the rectangular frame body forms an accommodating space 112, the light source 30 of the display device can be arranged in the accommodating space 112 inside.

The second mounting portion 12 is disposed on one side of the first mounting portion 11 , and includes a first blocking arm 121 , a second blocking arm 122 , a third blocking arm 123 , a first fixing portion 124 and a second fixing portion 125 . Wherein, the first blocking arm 121 and the second blocking arm 122 extend horizontally outward from the upper and lower ends of the opening 111 of the first installation part 11 respectively, that is to say, the first blocking arm 121 and the second blocking arm 122 are parallel to each other, and at a certain distance. The distance between the first blocking arm 121 and the second blocking arm 122 is approximately equal to the thickness of the light guide plate 20 . The first fixing portion 124 extends vertically downward from the end of the first blocking arm 121 and then horizontally inward. 124a and a second extension portion 124b extending horizontally inward from the end of the first extension portion 124a toward the first installation portion 11 . The second fixing portion 125 is elongated from the end of the second blocking arm 122 perpendicular to the second blocking arm 122 , and the lowermost end of the second fixing portion 125 is slightly lower than the second blocking arm 122 . The third arm 123 extends outward horizontally from the lowermost end of the second fixing part 125, and its height is slightly lower than the second arm 122, and the height difference between the second arm 122 and the third arm 123 is the same as that of the reflector. 40 are approximately equal in thickness.

The third installation portion 13 includes a fourth blocking arm 131 and a connecting arm 132 . The connecting arm 132 extends vertically upward from the end of the first blocking arm 121 , and the fourth blocking arm 131 extends horizontally outward from the end of the connecting arm 132 . The height of the connecting arm 132 is approximately equal to the sum of the thicknesses of the display panel 60 and the optical film 50 .

3 and 4 are schematic views of the light guide plate in FIG. 1 . As shown in FIGS. 3 and 4 , the light guide plate 20 includes a first fixing groove 201 and a second fixing groove 202 respectively corresponding to the first fixing portion 124 and the second fixing portion 125 . The first fixing groove 201 and the second fixing groove 202 are respectively arranged on two opposite surfaces of the light guide plate 20. In this embodiment, the first fixing groove 201 is arranged on the upper surface of the light guide plate 20, while the second fixing groove 202 is It is provided on the lower surface of the light guide plate 20 . The first fixing groove 201 and the second fixing groove 202 extend along the width direction of the light guide plate 20, and neither penetrate the light guide plate 20 in the width direction of the light guide plate 20, that is, the first fixing groove 201 and the second fixing groove 202 are blind grooves . Corresponding to the first fixing portion 124 , the cross section of the first fixing slot 201 is L-shaped. Corresponding to the second fixing portion 125 , the second fixing groove 202 is elongated in cross section. It should be noted that the first fixing groove 201 and the second fixing groove 202 of the light guide plate 20 can be opened separately after the light guide plate 20 is processed, or can be integrally formed with the light guide plate 20 when the light guide plate 20 is processed.

As shown in Figures 5 to 12, when the above-mentioned display device is assembled, at first, the light source 30 is installed in the accommodation space 112 of the reflector 10; then, a rubber bushing (bushing rubber) is installed in the accommodation space 112 70 to further fix the position of the light source 30; then, align the first fixing groove 201 and the second fixing groove 202 with the first fixing part 124 and the second fixing part 125 respectively, and push the light guide plate 20 along the width direction of the light guide plate 20 into the reflector 10, so that the light guide plate 20 is sandwiched between the first arm 121 and the second arm 122; then, align the reflective sheet 40 with the gap between the light guide plate 20 and the third arm 123, along Push the reflective sheet 40 into the reflective cover 10 in the same direction, so that the reflective sheet 40 is sandwiched between the third arm 123 and the light guide plate 20; then, push the optical film 50 and the display panel 60 into the light guide plate 20 in sequence In the gap between the fourth arm 131 and the fourth arm 131, the optical film 50 and the display panel 60 are sandwiched between the fourth arm 131 and the light guide plate 20; finally, between the optical film 50 and the fourth arm 131 Four rubber bushes 80 are installed at the four corners of the gap between them to further fix the position of the display panel 60 .

In addition, as shown in Figure 1, in order to enhance the assembly strength of the reflection sheet 40 and the optical film 50, the length of the reflection sheet 40 and the optical film 50 of the uppermost layer can be designed slightly longer, and the reflection sheet 40 can be assembled After reaching the reflection cover 10 , bend the end of the reflection sheet 40 protruding from the light guide plate 20 upwards along the edge of the light guide plate 20 , and glue the optical film 50 to the light guide plate 20 with glue. Similarly, after the optical film 50 is assembled to the reflector 10, the end of the uppermost optical film 50 protruding from the light guide plate 20 can be bent downward along the edge of the light guide plate 20, and glued to the reflector 10. The optical film 50 is bonded to the bent reflection sheet 40 . In the above method, in order to make the optical film 50 and the reflective sheet 40 easier to bend, a stitching line can be added on the optical film 50 and the reflective sheet 40 corresponding to the side of the light guide plate 20. The above-mentioned stitching line is not The continuous linear structure may include a plurality of through holes formed on the optical film 50 or the reflection sheet 40 at intervals.

To sum up, in the display device of the first embodiment of the present invention, the corresponding light source, light guide plate, reflective sheet and optical film are fixed by arranging the accommodating space and the blocking arm on the reflector, and the reflector and the light guide plate Corresponding fixing parts and fixing grooves are provided on the upper part to further fix the light guide plate, so that each independent component of the display device does not need to be fixed by additional fixing parts during the assembly process, which saves the assembly cost of the display device.

Fig. 13 is a schematic diagram of a second embodiment of the present invention. As shown in FIG. 13 , the difference between the second embodiment and the first embodiment lies in: the first fixing portion of the reflector and the first fixing groove of the light guide plate. In the second embodiment, the second extension portion 211 b of the first fixing groove 211 of the light guide plate 21 extends away from the first installation portion 11 horizontally and outwards. Correspondingly, the second extending portion of the first fixing portion of the reflector also extends away from the first installation portion, that is, the first fixing portion is formed by extending vertically downward and then horizontally outward from the end of the first blocking arm.

FIG. 14 is a schematic diagram of a third embodiment of the present invention. As shown in FIG. 14 , the difference between the third embodiment and the first embodiment lies in: the first fixing portion of the reflector and the first fixing groove of the light guide plate. In the third embodiment, the first fixing groove 221 of the light guide plate 22 is a T-shaped groove. Correspondingly, the first fixing portion of the reflector is also T-shaped.

Fig. 15 is a schematic diagram of a fourth embodiment of the present invention. As shown in FIG. 15 , the difference between the fourth embodiment and the first embodiment lies in: the first fixing portion of the reflector and the first fixing groove of the light guide plate. In the fourth embodiment, the first fixing groove 231 of the light guide plate 23 is a slanted groove, which extends downward and outward from the upper surface of the light guide plate 23. Correspondingly, the first fixing part of the reflector is arranged obliquely. , which extends obliquely downward and outward from the end of the first arm.

Fig. 16 is a schematic diagram of a fifth embodiment of the present invention. As shown in FIG. 16 , the difference between the fifth embodiment and the first embodiment lies in: the first fixing portion of the reflector and the first fixing groove of the light guide plate. In the fifth embodiment, the first fixing groove 241 of the light guide plate 24 is a slanted groove, which extends downward and inward from the upper surface of the light guide plate 24. Correspondingly, the first fixing part of the reflector is formed by the first The end of a retaining arm extends downward and inwardly.

Fig. 17 is a schematic diagram of a sixth embodiment of the present invention. As shown in FIG. 17 , the difference between the sixth embodiment and the first embodiment lies in: the first fixing portion of the reflector and the first fixing groove of the light guide plate. In the sixth embodiment, the first fixing groove 251 of the light guide plate 25 is similar to a golf club. Correspondingly, the first fixing portion of the reflector is also similar to a golf club, which includes a first extension extending downward and inward from the end of the first blocking arm and an inward horizontal extension from the end of the first extension. Extended second extension.

Fig. 18 is a schematic diagram of a seventh embodiment of the present invention. As shown in FIG. 18 , the difference between the seventh embodiment and the first embodiment lies in: the first fixing portion of the reflector and the first fixing groove of the light guide plate. In the seventh embodiment, the first fixing groove 261 of the light guide plate 26 is similar to a golf club. Correspondingly, the first fixing portion of the reflector is also similar to a golf club, which includes a first extending portion extending obliquely downwards and outwards from the end of the first arm, and a horizontal portion extending outwards from the end of the first extending portion. Extended second extension.

FIG. 19 is a schematic diagram of an eighth embodiment of the present invention. As shown in FIG. 19 , the difference between the eighth embodiment and the first embodiment lies in: the first fixing portion of the reflector and the first fixing groove of the light guide plate. In the eighth embodiment, the first fixing groove 271 of the light guide plate 27 is a hook-shaped groove. Correspondingly, the first fixing part of the reflector is also in the shape of a hook, which includes a first extension extending vertically downward from the end of the first arm and an arc bent inward from the end of the first extension. the second extension of .

Fig. 20 is a schematic diagram of a ninth embodiment of the present invention. As shown in FIG. 20 , the difference between the ninth embodiment and the first embodiment lies in: the first fixing portion of the reflector and the first fixing groove of the light guide plate. In the ninth embodiment, the first fixing groove 281 of the light guide plate 28 is a hook-shaped groove. Correspondingly, the first fixing part of the reflector is also hook-shaped, which includes a first extension extending vertically downward from the end of the first arm and an arc bent outward from the end of the first extension. the second extension of .

21 to 23 are schematic diagrams showing the connection between the display device of the present invention and electronic products. The electronic product in FIGS. 21 to 23 is a TV set 90 . As shown in Figures 21 to 23, in order to facilitate the connection between the display device and the TV set 90, the light guide plate 20 protrudes from the display panel 60 and the optical film 50 along its width direction, and at the part protruding from the display panel 60 A number of openings 203 are set at the four corners. The front cover 91 of the TV set 90 includes a pressing arm 91d and an inverted L-shaped locking portion 91c extending upward and inward from the pressing arm 91d. The pressing arm 91d is provided with a number of fixed columns 91a that can be respectively accommodated in the above-mentioned openings 203. These fixed columns 91a are provided with screw holes 91b, and the positions corresponding to the openings 203 are provided on the back cover 92 of the TV set 90. There are four through holes 92b.

When assembling, use fixing elements such as screws 93 to pass through the above-mentioned through hole 92b and opening 203 and fix on the fixing column 91a of the front cover 91 of the TV set, so that the part of the light guide plate 20 protruding from the display panel 60 is clamped on the TV set Between the pressing arm 91d of the TV set 90 and the back cover 92, and a part of the optical film 50 and the display panel 60 are sandwiched between the clamp portion 91c of the TV set 90 and the back cover 92, and the display device is connected to the TV set 90 together, and make the middle part of the display panel 60 expose the front cover 91 of the TV set 90 to facilitate displaying images.

To sum up, in the display device of the present invention, the corresponding light source, light guide plate, reflective sheet and optical film are fixed by arranging accommodating space and blocking arm on the reflector, and corresponding The light guide plate is further fixed by the fixed portion and the fixed groove, so that the individual components of the display device do not need to be fixed by additional fixing parts during the assembly process, which saves the assembly cost of the display device.

It should also be noted that in this embodiment, the light source can be a light emitting diode or a fluorescent tube, and the display panel can be a liquid crystal display panel or a cholesteric liquid crystal display panel, but the present invention is not limited thereto. The optical film can be a prism film, a brightness enhancement film, a diffusion film, a composite optical film or a combination thereof, but the present invention is not limited thereto, and the type, quantity and placement order of the optical film can be adjusted according to actual needs.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the technical content disclosed above to make some changes or modify them into equivalent embodiments with equivalent changes, but as long as they do not depart from the technical solution of the present invention, the Technical Essence Any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims (10)

1. A display device, comprising a light guide plate, a light source and a reflector, the light source is positioned at one side of the light guide plate, and the reflector is positioned under the light guide plate, it is characterized in that: the display device also includes a reflector, the reflector The cover is sequentially provided with a first blocking arm, a second blocking arm and a third blocking arm from top to bottom, the light guide plate is sandwiched between the first blocking arm and the second blocking arm, and the reflective sheet is sandwiched between the first blocking arm and the second blocking arm. Between the light guide plate and the third blocking arm. 2. The display device according to claim 1, characterized in that: the reflector further comprises a mounting portion, an accommodating space is formed in the mounting portion, the light source is disposed in the accommodating space, the first stop arm and The second blocking arm is formed by extending outward from the mounting portion. 3. The display device according to claim 1, wherein the reflector further comprises a first fixing portion and a second fixing portion, the first fixing portion is connected to the first stop arm, and the second fixing portion is connected to the second fixing portion The second blocking arm is connected, and the light guide plate is respectively provided with a first fixing groove and a second fixing groove corresponding to the first fixing part and the second fixing part. 4. The display device as claimed in claim 3, wherein the first fixing part is L-shaped, T-shaped or hook-shaped, and the second fixing part is elongated. 5 . The display device according to claim 3 , wherein the first fixing part is formed by extending downwardly from the upper surface of the light guide plate, and the second fixing part is elongated. 6. The display device as claimed in claim 3, wherein the first fixing part is in the shape of a golf club, and the second fixing part is in the shape of a strip. 7. The display device as claimed in claim 3, wherein neither the first fixing groove nor the second fixing groove penetrates through the light guide plate. 8. The display device according to claim 1, characterized in that: the display device further comprises an optical film and a display panel, and the reflector further comprises a fourth stop arm, between the fourth stop arm and the first stop arm The distance is equal to the sum of the thicknesses of the optical film and the display panel. 9. The display device as claimed in claim 8, wherein a part of the reflective sheet is bent upward along the edge of the light guide plate, and the uppermost layer of the optical film is bent downward along the edge of the light guide plate. 10. The display device according to claim 8, characterized in that: the edge of the light guide plate is provided with a number of openings, and the front cover of an electronic product is provided with a number of fixing posts corresponding to these openings, and corresponding to the display panel is provided There is a card part, the back cover of the electronic product is provided with a number of through holes corresponding to the opening, and a number of fixing elements pass through these through holes and openings and are fixed to these fixing posts, so as to fix the display panel card and the optical film to the guide. Between the light board and the locking part of the front cover.

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