CN110568665B

CN110568665B - Display device

Info

Publication number: CN110568665B
Application number: CN201910864956.9A
Authority: CN
Inventors: 廖乾廷
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2018-12-05
Filing date: 2019-09-09
Publication date: 2023-03-21
Anticipated expiration: 2039-09-09
Also published as: CN110568665A

Abstract

A display device comprises an optical film, a substrate, a liquid crystal display panel and a supporting pad. The liquid crystal display panel is arranged on the optical diaphragm, at least one side edge of the liquid crystal display panel is supported on the substrate, and the supporting pad is adhered to the bottom surface of the substrate through the adhesive layer.

Description

Display device

Technical Field

The present invention relates to a display device, and more particularly, to a display device having a combination of a buffer material and an optical film, in which a rubber frame is omitted.

Background

Display devices such as computer screens and televisions are widely used with the advancement of technology. In addition, demands for display devices are also gradually increasing, for example, to make the display devices thinner, to improve display resolution, and to design narrow sides.

Conventionally, some display devices are composed of a rubber frame and an iron frame, which are fixed by a welding means in one side. Therefore, the light mixing distance between the light emitting side of the internal lamp strip and the display area is reduced, and the overall light emitting effect is poor.

On the other hand, the light guide plate and the light bar in the display device are mostly arranged on one side of the light-emitting element in a strip shape by the double-sided adhesive tape to be bonded, so that the brightness of the light-emitting side is easily reduced, and in addition, the double-sided adhesive tape is not properly attached, so that the light-emitting effect of the light bar is easily influenced, and the visual perception of a user is influenced.

Disclosure of Invention

In view of the above, an embodiment of the invention provides a display device including an optical film, a substrate, a liquid crystal display panel and a supporting pad.

A first splicing structure is arranged on one side edge of the optical diaphragm; the bottom surface of the substrate is a reflecting surface, and one side edge of the substrate is provided with a second splicing structure corresponding to the first splicing structure and spliced with the first splicing structure so as to limit the optical diaphragm; the liquid crystal display panel is positioned on the optical film, and at least one side edge of the liquid crystal display panel is supported on the substrate; the supporting pad is adhered to the bottom surface of the substrate through the adhesive layer.

In an embodiment of the display device, the display device further includes a back cover, and the optical film, the substrate, the liquid crystal display panel and the supporting pad are disposed above the back cover.

In an embodiment of the display device, the substrate includes a buffer layer and a light reflecting layer, the light reflecting layer is disposed below the buffer layer, and a bottom surface of the light reflecting layer is the light reflecting surface.

In the display device, in an embodiment, the buffer layer and the light reflecting layer are adhered to each other via the adhesive layer.

In one embodiment of the display device, the supporting pad includes a plurality of supporting portions and a plurality of adhesive portions, the adhesive portions are respectively disposed under the supporting portions, and the supporting portions and the adhesive portions are arranged at equal or unequal intervals along the extending direction of the substrate.

In an embodiment of the display device, the display device further includes a light emitting assembly and a light guide plate, and the light emitting assembly and the light guide plate are located below the optical film.

In one embodiment, the light-emitting assembly includes a plurality of light-emitting elements and a circuit board, wherein the light-emitting elements are disposed on the circuit board in a spaced arrangement; one light incident side of the light guide plate is adjacent to the light emitting element, the light guide plate comprises a plurality of protruding parts which are arranged on the light incident side in an equidistant or non-equidistant mode, and the protruding parts are respectively arranged in a part of intervals.

In an embodiment of the display device, the width of the adhesive layer is smaller than or equal to the width of the circuit board, and the protrusion is adhered to the supporting pad through the adhesive layer.

In an embodiment of the display device, the protrusion is adhered to the supporting pad through an adhesive layer, and the adhesive layer includes a plurality of extending portions corresponding to the protrusion.

In one embodiment of the display device, the supporting pad includes a plurality of supporting portions disposed in a space of another portion.

In an embodiment of the display device, the supporting pad further includes a plurality of adhesive portions respectively disposed below the supporting portions, and the supporting portions are adhered to the circuit board via the adhesive portions.

In one embodiment of the display device, the first splicing structure comprises two convex portions respectively located at two ends of the side edge, and the second splicing structure comprises two concave portions.

Through the structural design of the display device of one or more of the above embodiments, the use of the rubber frame is omitted. So, the luminous side and the display area of inside lamp strip keep certain mixed light distance, improve because of the not good problem of luminous effect of butt fusion frame and chase.

Drawings

Fig. 1 is an external view of a display device according to an embodiment of the invention.

FIG. 2A is a schematic view of the display device of FIG. 1 with 2A-2A as a cross-section.

FIG. 2B is a schematic diagram of the display device shown in FIG. 1 with 2B-2B taken as a cross-sectional line.

FIG. 2C is a schematic diagram of the display device shown in FIG. 1 with 2C-2C as a cross-sectional line.

FIG. 2D is a schematic diagram of the display device shown in FIG. 1 with 2D-2D as a cross-sectional line.

Fig. 3 is a partially exploded view of the embodiment of fig. 1.

Fig. 4 is a partially exploded view of the embodiment of fig. 1.

Fig. 5 is a partial schematic view of an adhesive layer in a display device according to another embodiment of the invention.

FIG. 6A is a partial schematic view of embodiment 6A shown in FIG. 1.

FIG. 6B is a partial schematic view of FIG. 1 illustrating embodiment 6B.

The reference numbers are as follows:

1. display device

11. Optical film

11a side edge

111. First splicing structure

12. Substrate

12a side edge

121. Bottom surface

122. Second splicing structure

123. Buffer layer

124. Light reflecting layer

125. Adhesive layer

13. Liquid crystal display panel

14. Supporting pad

141. Supporting part

142. Adhesive part

15. Adhesive layer

151. Extension part

17. Light emitting assembly

171. Circuit board

172. Light emitting element

18. Light guide plate

181. Protrusion part

19. Reflector plate

2. Back cover

W interval

Width of W1

Width of W2

D direction of extension

Detailed Description

Please refer to fig. 1 to 2D. Fig. 1 is an external view of a display device 1 according to an embodiment of the invention. FIG. 2A is a schematic view of the display device 1 of the embodiment shown in FIG. 1 with 2A-2A as a cross-section. FIG. 2B is a schematic diagram of the display device 1 shown in FIG. 1 with 2B-2B taken as a cross-sectional line. Fig. 2C is a schematic view of the display device 1 of the embodiment shown in fig. 1 with 2C-2C taken as a cross-section line. FIG. 2D is a schematic diagram of the display device 1 of the embodiment shown in FIG. 1 with 2D-2D as a cross-sectional line.

As shown in fig. 2A to fig. 2D, the display device 1 includes an optical film 11, a substrate 12, a liquid crystal display panel 13, a supporting pad 14, and a back cover 2, wherein an edge of the back cover 2 extends vertically to form a side wall, so that the side wall surrounds and defines an accommodating area. The optical film 11, the substrate 12, the liquid crystal display panel 13 and the supporting pad 14 are disposed above the back cover 2.

A side 11a of the optical film 11 is disposed with a first splicing structure 111 (see the following description and refer to fig. 6A and 6B). The bottom surface 121 of the substrate 12 is a light-reflecting surface, and a side 12a of the substrate 12 is provided with a second splicing structure 122 (see below and refer to fig. 6A and 6B) corresponding to the first splicing structure 111, and can be spliced with the first splicing structure 111 to define the position of the optical film 11. The liquid crystal display panel 13 is disposed on the optical film 11, and at least one side of the liquid crystal display panel 13 is supported by the substrate 12. The support pad 14 is adhered to the bottom surface 121 of the substrate 12 via an adhesive layer 15.

In this embodiment, the substrate 12 includes a buffer layer 123 and a light reflecting layer 124, the light reflecting layer 124 is disposed below the buffer layer 123, the light reflecting layer 124 is a light reflecting sheet, and the bottom surface 121 is the light reflecting surface. In some embodiments, the buffer layer 123 is made of a rubber material, such as natural rubber, butyl rubber, polyurethane rubber, or silicone rubber, and has elasticity and high temperature resistance.

As shown in fig. 2A, the buffer layer 123 and the light reflecting layer 124 are bonded and fixed to each other via the adhesive layer 125.

Referring to fig. 3, fig. 3 is a partially exploded view of the embodiment shown in fig. 1. Note that, the liquid crystal display panel 13 and the optical film 11 are omitted here for the sake of describing the configuration in detail. As shown in fig. 2C and 3, the supporting pad 14 includes a plurality of supporting portions 141 and a plurality of adhesive portions 142, the adhesive portions 142 are respectively disposed below the supporting portions 141, and the supporting portions 141 and the adhesive portions 142 are arranged at equal or unequal intervals in the extending direction D of the substrate 12.

To further illustrate, referring to fig. 4, fig. 4 is a partially exploded view of the embodiment shown in fig. 1. Note that, for the sake of detailed description of the configuration, the liquid crystal display panel 13, the optical film 11, and the back cover 2 are omitted here. In this embodiment, the display device 1 further includes a light emitting assembly 17 and a light guide plate 18 disposed on the back cover 2 and located in the accommodating area. The lighting assembly 17 is, for example, an LED light bar.

As shown in fig. 2A and 2D, the light-emitting assembly 17 and the light guide plate 18 are located below the optical film 11, the light-emitting assembly 17 includes a plurality of light-emitting elements 172 (e.g., LEDs) and a circuit board 171, and the light-emitting elements 172 are disposed on the circuit board 171 in an arrangement manner with a spacing W (see also fig. 4). The light incident side of the light guide plate 18 is adjacent to the light emitting element 172, so that the light emitting element 172 projects light to the light incident side of the light guide plate 18.

As shown in fig. 4, the light guide plate 18 includes a plurality of protrusions 181 arranged on the light incident side at equal or unequal intervals, and the protrusions 181 are respectively disposed in a part of the space W such that one protrusion 181 is disposed between at least one pair of light emitting elements 172. In this embodiment, the width W1 (see fig. 5) of the adhesive layer 15 is less than or equal to the width W2 of the circuit board 171, and the protrusion 181 is adhered to the supporting pad 14 through the adhesive layer 15, on the other hand, the supporting portions 141 of the supporting pad 14 are disposed in the other portion of the interval between the light emitting elements 172 and adhered to the circuit board 171 through the adhering portion 142.

Fig. 5 is a partial schematic view of an adhesive layer 15 in a display device 1 according to another embodiment of the invention. In this embodiment, in order to improve the fixing property between the light guide plate 18 and the supporting pad 14, the adhesive layer 15 corresponds to the protrusion 181 of the light guide plate 18, and the adhesive layer 15 includes a plurality of extensions 151 to increase the area for adhering the light guide plate 18.

Referring to fig. 2D, and to fig. 6A and 6B, fig. 6A and 6B are partial schematic views of

embodiments

6A and 6B shown in fig. 1, respectively. Similarly, the liquid crystal display panel 13 is omitted for clarity of the alternate structure. As shown in fig. 6A and 6B, the first splicing structure 111 of the optical film 11 includes two convex portions respectively located at two ends of the side edge, and the second splicing structure 122 of the substrate 12 includes two concave portions, and the convex portions and the concave portions are combined to fix the optical film 11 so that it does not generate a displacement phenomenon in the display device 1. However, the above-mentioned protrusion and recess are only examples, and the invention is not limited to the manner of the first tile structure 111 and the second tile structure 122, and in another embodiment, the first tile structure 111 includes a recess, and the second tile structure 122 includes a protrusion. As shown in fig. 1, 2D, and 6A and 6B, the 2D-2D cross-section is located on the first and

second tiles

111 and 122. As shown in fig. 2D, the substrate 12 is bonded and fixed to the light emitting assembly 17 via the adhesive layer 15, a light guide plate 18 is provided below the substrate 12, and a reflective sheet 19 is provided below the light guide plate 18.

In the above embodiments, the adhesive layer 125, the adhesive part 142 and the adhesive layer 15 may be double-sided tape or glue, but the invention is not limited thereto.

The display device of one or more embodiments of the invention has the advantages of omitting the use of the rubber frame, saving the welding process of the traditional rubber frame and the iron frame, increasing the length of the light mixing area in the display device and ensuring better overall light emitting effect.

Claims

1. A display device, comprising:

the optical diaphragm is provided with a first splicing structure at one side edge;

a substrate, a bottom surface of the substrate is a reflecting surface, the substrate comprises a buffer layer and a light reflecting layer, the light reflecting layer is arranged below the buffer layer, the bottom surface of the light reflecting layer is the reflecting surface, and one side edge of the substrate is provided with a second splicing structure corresponding to the first splicing structure and spliced with the first splicing structure so as to limit the optical diaphragm;

a liquid crystal display panel, which is positioned on the optical film and at least one side edge of the liquid crystal display panel is supported on the buffer layer of the substrate;

the supporting pad is adhered to the bottom surface of the substrate through an adhesive layer and comprises a plurality of supporting parts which are arranged at intervals;

the light-emitting assembly comprises a plurality of light-emitting elements and a circuit board, wherein the plurality of light-emitting elements are arranged on the circuit board in an interval arrangement mode; and

an incident side of a light guide plate is adjacent to the plurality of light emitting elements, the light guide plate comprises a plurality of protrusions arranged on the incident side in an equidistant or non-equidistant manner, the plurality of protrusions of the light guide plate are respectively arranged in the plurality of intervals between a part of the plurality of light emitting elements, the plurality of supporting parts are arranged in the plurality of intervals between another part of the plurality of light emitting elements, the adhesive layer comprises a plurality of extensions corresponding to the plurality of protrusions of the light guide plate, so that the adhesive layer on the bottom surface of the substrate supporting the liquid crystal display panel can be simultaneously adhered to the light emitting assembly, the supporting pad and the plurality of protrusions of the light guide plate.

2. The display device of claim 1, further comprising a back cover over which the optical film, the substrate, the liquid crystal display panel, and the support pads are disposed.

3. The display device according to claim 1, wherein the buffer layer and the light reflecting layer are bonded to each other via an adhesive layer.

4. The display device according to claim 1, wherein the supporting pad comprises a plurality of adhesive portions disposed under the supporting portions, and the supporting portions and the adhesive portions are arranged at equal or unequal intervals in an extending direction of the substrate.

5. The display device of claim 1, wherein portions of the light emitting assembly and the light guide plate are located under the substrate, and other portions of the light guide plate are located under the optical film.

6. The display device of claim 1, wherein the width of the adhesive layer is less than or equal to the width of the circuit board, and the plurality of protrusions are adhered to the supporting pad through the adhesive layer.

7. The display device according to claim 1, wherein a plurality of the protrusions are adhered to the supporting pad via the adhesive layer, and the adhesive layer comprises a plurality of extensions corresponding to the plurality of protrusions.

8. The display device of claim 1, wherein the support pad further comprises a plurality of adhesive portions disposed under the support portions, respectively, and the support portions are adhered to the circuit board via the adhesive portions.

9. The display device of claim 1, wherein the first tile structure comprises two protrusions at two ends of the side, and the second tile structure comprises two recesses.