CN203909434U - Display device - Google Patents

Abstract

The utility model provides a novel display device. The display device comprises a display panel and a backlight module. The backlight module is arranged opposite to the display panel and is provided with a light guide unit and at least one light emitting unit, the light guide unit is provided with at least one light incident surface and a light emergent surface, the light emergent surface faces the display panel and shares a first side edge with the light incident surface, and the light emitting unit is provided with a plurality of light emitting elements which are arranged adjacent to the light incident surface. Therefore, the display device of the utility model is different from the prior art, and the viewer can obtain the full-view visual field feeling with better surrounding feeling.

Description

display device

technical field

The utility model relates to the field of image display, in particular to a curved display device.

Background technique

Flat display apparatus (flat display apparatus) has been used in a variety of electronic products due to its advantages of low power consumption, low heat generation, light weight and non-radiation, and has gradually replaced traditional cathode ray tubes (cathode ray tube, CRT) display device.

Taking a liquid crystal display device as an example, a known liquid crystal display device includes a liquid crystal display panel (LCD Panel) and a backlight module (Backlight Module), which are arranged opposite to each other. A liquid crystal display panel has a plurality of pixels arranged in an array. The backlight module can emit light through the liquid crystal display panel, and display colors through each pixel of the liquid crystal display panel to form an image.

In addition, in order to meet the various needs of different consumers, various business operators are constantly developing new flat panel display devices to meet the different needs of different consumers. Among them, some industries have proposed the idea of a curved display device. It is generally believed that the distance between each point of the full screen and the eyeball of the curved display device is equivalent, so that the viewer can obtain a full-view field of view with a better sense of envelopment.

Utility model content

The purpose of the utility model is to provide a curved display device, which can meet the different needs of different consumers.

To achieve the above purpose, a display device according to the present invention includes a display panel and a backlight module. The backlight module is arranged opposite to the display panel, and has a light guide unit and at least one light emitting unit. The light guide unit has at least one light incident surface and one light exit surface. The light exit surface faces the display panel and shares a curved side with the light incident surface. The first side, and the light-emitting unit has a plurality of light-emitting elements adjacent to the light-incident surface.

In one embodiment, a curved line passes through the light emitting elements, and the curvature of the curved line is substantially equal to that of the first side.

In one embodiment, the display panel has a second side corresponding to the first side, and the curvature radius of the first side, the second side or the curve is between 500 mm and 10000 mm.

In an embodiment, the radius of curvature of the first side, the second side or the curve is between 2000 mm and 7500 mm.

In one embodiment, the display panel further has a display surface, which is a concave curved surface or a convex curved surface.

In one embodiment, the light-emitting unit further has a circuit board, the light-emitting elements are disposed on the circuit board, the circuit board has a third side, and the curvature of the third side matches the first side.

In one embodiment, the circuit board has a surface on which the light-emitting elements are disposed, and the surface faces the light-incident surface.

In one embodiment, the circuit board has a surface on which the light-emitting elements are disposed, and the extension of the surface is substantially parallel to the light-emitting surface.

In one embodiment, the light guide unit further has a bottom surface opposite to the light-emitting surface, and the bottom surface is in contact with the surface.

In one embodiment, the display device further includes a back panel and a front frame. The backplane accommodates the backlight module. The front frame is connected with the back panel to form an accommodating space, and the display panel and the backlight module are accommodated in the accommodating space.

In one embodiment, the curvatures of the display panel, the backlight module, the back panel and the front frame match each other.

Based on the above, in the display device of the present invention, the backlight module is arranged opposite to the display panel, and has a light guide unit and at least one light emitting unit. The light guide unit has at least one light incident surface and a light exit surface, and the light exit The surface faces the display panel and shares a curved first side with the light-incident surface. The light-emitting unit has a plurality of light-emitting elements adjacent to the light-incident surface. In this way, the display device of the present invention can be distinguished from the known ones, and can meet different needs of different consumers.

Description of drawings

FIG. 1A is a three-dimensional schematic diagram of a display device according to a preferred embodiment of the present invention.

FIG. 1B is an exploded schematic diagram of the display device in FIG. 1A .

FIG. 1C and FIG. 1D are respectively a schematic side view and a schematic cross-sectional view of the backlight module in FIG. 1B .

FIG. 2A is a schematic perspective view of another display device according to a preferred embodiment of the present invention.

FIG. 2B is a schematic perspective view of a backlight module of the display device shown in FIG. 2A .

3A and 3B are respectively a schematic side view and a schematic cross-sectional view of another backlight module according to a preferred embodiment of the present invention.

FIG. 4 is a schematic side view of another backlight module according to a preferred embodiment of the present invention.

reference sign

1, 1a: display device

2, 2a: display panel

21: First Substrate

22: Second substrate

3~3c: Backlight module

31, 31a~31c: light guide unit

311: light incident surface

312: light emitting surface

313: Bottom

32, 32a~32c: light emitting unit

321: Light emitting element

322: circuit board

323: surface

33: reflector

341～343: Optical film

AA: display surface

B: Backplane

C: centroid

F: Front frame

L: curve

S1: first side

S2: second side

S3: third side

T: plastic frame

Detailed ways

A display device according to a preferred embodiment of the present invention will be described below with reference to related drawings, wherein the same components will be described with the same reference numerals. The accompanying drawings of all the implementation aspects of the utility model are only schematic, and do not represent real dimensions and proportions.

Please refer to FIG. 1A to FIG. 1D respectively. Among them, FIG. 1A is a perspective view of a display device 1 according to a preferred embodiment of the present invention, and FIG. 1B is an exploded view of the display device 1 in FIG. 1A , and FIG. 1C and FIG. 1D is a schematic side view and a schematic cross-sectional view of the backlight module 3 in FIG. 1B , respectively.

The display device 1 includes a display panel 2 and a backlight module 3 .

The display panel 2 is, for example, a liquid crystal display panel, and has a display surface AA, and the display surface AA is a concave curved surface or a convex curved surface. Here, the so-called "concave curved surface" means that the two sides of the display panel protrude more than the middle part, and the "convex curved surface" means that the middle part of the display panel protrudes more than the two sides. The display surface AA of the display panel 2 in this embodiment is a concave curved surface as an example.

The display panel 2 has a first substrate 21 and a second substrate 22 , and the first substrate 21 and the second substrate 22 are disposed opposite to each other. Here, the first substrate 21 is a color filter substrate, and the second substrate 22 is a thin film transistor substrate as an example, however, in other embodiments, the black matrix layer (black matrix) and The filter layer can also be disposed on the TFT substrate, so that the second substrate 22 becomes a BOA (BM on array) substrate, or a COA (color filter on array) substrate. In addition, the display panel 2 can also have an upper polarizer and a lower polarizer (not shown in the figure), the upper polarizer is attached to the upper surface of the first substrate 21, and the lower polarizer is attached to the lower surface of the second substrate 22. side surface. In addition, the display panel 2 can also have a liquid crystal layer (not shown in the figure), and the liquid crystal layer is interposed between the first substrate 21 and the second substrate 22 . Since the display surface AA of the display panel 2 is a concave curved surface, it means that the display panel 2 is a curved panel, and it also means that the degrees of curvature of the first substrate 21, the second substrate 22, the liquid crystal layer, the upper polarizer and the lower polarizer are substantially the same. Are the same.

The backlight module 3 is disposed opposite to the display panel 2 . The backlight module 3 can emit light to enter the display panel 2 so that the display panel 2 can display images. Wherein, the backlight module 3 has a light guide unit 31 and at least one light emitting unit 32 , the light guide unit 31 has at least a light incident surface 311 , a light exit surface 312 and a bottom surface 313 opposite to the light exit surface 312 . The light incident surface 311 and the light exit surface 312 are adjacent surfaces, and the light exit surface 312 faces the display panel 2 , and the light exit surface 312 and the light incident surface 311 share a curved first side S1 . In other words, the backlight module 3 of this embodiment is a side-mounted backlight module, and is also a curved backlight module. Wherein, the light guide unit 31 can be made of a light-transmitting material, and the light-transmitting material can be, for example, acrylic resin, polycarbonate, polyethylene resin or glass. Herein, no limitation is imposed.

The light-emitting unit 32 is a light-emitting diode light bar (light bar), and has a plurality of light-emitting elements 321 adjacent to the light incident surface 311, so that the emitted light enters the light guide unit 31 from the light incident surface 311, and is emitted from the light exit surface 312 . In addition, the light emitting unit 32 also has a circuit board 322 (such as MCPCB/PCBA), and the light emitting elements 321 are disposed on the circuit board 322 . Wherein, the circuit board 322 is a curved circuit substrate. In addition, in this embodiment, it is taken as an example that one light-emitting unit 32 corresponds to a light-incident surface 311, but in other implementations, the other surface ( Another light incident surface) is provided with another light emitting unit 32 . In addition, in this embodiment, as shown in FIG. 1D , the circuit board 322 has a surface 323 on which the light-emitting elements 321 are disposed, and the surface 323 of the circuit board 322 faces the light-incident surface 311 (that is, the top view LED).

A curve L can pass through the light emitting elements 321 , and the curvature of the curve L is substantially equal to the first side S1 of the light guide unit 31 . In this embodiment, as shown in FIG. 1C , the curve L passes through the centroid C of the light emitting elements 321 . Here, the “centroid C” is the geometric center of the light emitting element 321 . In other words, a curved curve L passes through the geometric center of each light-emitting element 321, so that the light-emitting elements 321 have a curved arrangement, so that the degree of curvature of the curve L passing through all centroids C (or can be called " curvature") and the first side S1 are substantially equal (or may be referred to as "mutually matched").

In addition, please refer to FIG. 1B again, since the first side S1 is a curved side, the display panel 2 also has a second side S2 corresponding to the first side S1, and the first side S2 of the light guide unit 31 The radius of curvature of one side S1 , the second side S2 of the display panel 2 , or the curve L passing through the centroids C of all light emitting elements 321 may be between 500 mm and 10000 mm (500 mm≦radius of curvature≦10000 mm). Preferably, the curvature radius of the first side S1 , the second side S2 or the curve L can be between 2000 mm and 7500 mm (2000 mm≦curvature radius≦7500 mm). In addition, the curvatures of the first side S1 , the second side S2 and the curve L are equal (may have substantially the same radian). In addition, the circuit board 322 also has a third side S3, and the degree of curvature of the third side S3 is substantially the same as that of the first side S1. Here, the curvature radii of the first side S1 , the second side S2 , the third side S3 and the curve L are: second side S2<first side S1<third side S3<curve L.

In addition, the backlight module 3 may further include a reflector 33 and a plurality of optical films 341 , 342 , 343 . The reflection plate 33 is disposed on the bottom surface 313 , and the optical films 341 , 342 , 343 are disposed between the light emitting surface 312 of the light guide unit 31 and the display panel 2 . Wherein, the optical film sheets 341 , 342 , and 343 may include, for example but not limited to, a light collecting sheet or a diffusing sheet, respectively. The reflector 33 and the optical films 341 , 342 , 343 of the backlight module 3 are a known technology, and those skilled in the art should be able to understand their relative arrangement relationship and functions, which will not be repeated in the present invention.

The display device 1 may further include a back plate B, a plastic frame T and a front frame F. The backplane B can accommodate the backlight module 3, the plastic frame T is arranged on the backplane B to carry the display panel 2, and the front frame part F is connected to the backplane B to form an accommodating space, so that the display panel 2 and the backlight The module 3 can be accommodated in the accommodating space. In this embodiment, as shown in Figure 1B, the optical films 341, 342, 343 are arranged on the lower side of the plastic frame T, however, in other implementations, the optical films 341, 342, 343 can also be arranged The utility model is not limited to the upper side of the plastic frame T.

Since the display device 1 is a curved display device, the degrees of curvature of the above-mentioned display panel 2, backlight module 3, backplane B, plastic frame T and front frame member F are all matched to each other, that is, the degrees of curvature of these components are essentially the same. What is particularly mentioned here is that in the actual manufacturing process of the display device 1, a one-piece or multi-piece hardware arc-shaped support frame (the curved shape of the arc-shaped support frame has been fixed, not shown in the figure) can be used to achieve The purpose of forcing a display to bend to a specific arc. Among them, the arc-shaped support frame can be used, and the backplane B is forced to be locked on the arc-shaped support frame by, for example, screw locking, so that the bending degree of the backplane B is the same as that of the arc-shaped support frame. Then, the The reflector 33 , the light guide unit 31 , and the optical films 341 , 342 , 343 , etc. of the soft flat plate are attached to the curved backplane B, and bend and deform according to the curvature of the backplane B. In addition, the light emitting unit 32 with the same curvature as the first side S1 of the light guide unit 31 is disposed adjacent to the light incident surface 311 of the light guide unit 31 . Finally, the plastic frame T and the display panel 2 are bent and deformed according to the curvature of the backlight module 3 and the backplane B, and connected to the backplane B through the design of the curved shape of the front frame part F, so that the display device 1 is fixed in a curved state .

Next, please refer to FIG. 2A and FIG. 2B. Among them, FIG. 2A is a perspective view of another display device 1a according to a preferred embodiment of the present invention, and FIG. 2B is a perspective view of the backlight module 3a of the display device 1a in FIG. 2A schematic diagram.

The main difference between the display device 1 a in FIG. 2A and the display device 1 in FIG. 1A is that the display surface AA of the display device 1 a is a convex surface. In other words, the middle part of the display panel 2a of the display device 1a protrudes more than the two side parts. Therefore, as shown in FIG. 2B , the middle portion of the light guide unit 31 a of the backlight module 3 a of the display device 1 a protrudes more than the side portions. However, the curve L can also pass through all the centroids C of the light emitting elements 321 of the light emitting unit 32a, and the bending degree of the curve L is substantially the same as that of the first side S1 of the light guide unit 31 . In addition, the curvature degree of the third side S3 of the circuit board 322 of the light emitting unit 32 a is substantially the same as that of the first side S1 .

In addition, other technical features of the display device 1 a can refer to the same components of the display device 1 , which will not be repeated here.

In addition, please refer to FIG. 3A and FIG. 3B , which are respectively a schematic side view and a schematic cross-sectional view of another backlight module 3 b according to a preferred embodiment of the present invention.

The main difference between the backlight module 3b of FIG. 3A and FIG. 3B and the backlight module 3 of FIG. 1C and FIG. The extension of the surface 323 is substantially parallel to the light-emitting surface 312 instead of facing the light-incident surface 311, so that the light emitting element 321 is a side view LED (side view LED). Wherein, the surface 323 of the circuit board 322 of the light emitting unit 32b contacts the bottom surface 313 of the light guiding unit 31b.

In addition, please refer to FIG. 4 , which is a schematic side view of another backlight module 3c according to a preferred embodiment of the present invention.

The main difference between the backlight module 3c in FIG. 4 and the backlight module 3 in FIG. 1C is that although the light emitting elements 321 of the light emitting unit 32c and the light emitting elements 321 of the light emitting unit 32 are arranged in an arc, each of the light emitting units 32c A light emitting element 321 is not arranged obliquely along the first side S1 of the light guide unit 31c, but is vertically arranged on the circuit board 322 of the light emitting unit 32c. In addition, the curve L can also pass through all the centroids C of the light emitting elements 321 of the light emitting unit 32c, and the degree of curvature of the curve L is substantially the same as (matches with) the first side S1 of the light guide unit 31c. In addition, the curvature degree of the third side S3 of the circuit board 322 of the light emitting unit 32c is substantially the same as that of the first side S1.

In addition, other technical features of the backlight modules 3a, 3b can refer to the same elements of the backlight module 3, and will not be repeated here.

To sum up, in the display device of the present invention, the backlight module is arranged opposite to the display panel, and has a light guide unit and at least one light emitting unit. The light guide unit has at least one light incident surface and one light exit surface, and the light exit The surface faces the display panel and shares a curved first side with the light-incident surface. The light-emitting unit has a plurality of light-emitting elements adjacent to the light-incident surface. In this way, the display device of the present invention can be distinguished from the known ones, and can meet different needs of different consumers.

The above description is for illustration only, not for limitation. Any equivalent modification or change made without departing from the spirit and scope of the present utility model shall be included in the appended application claims.

Claims (10)

1. a display device, is characterized in that, described display device comprises:

One display panel; And

One backlight module, relative with described display panel and establish, and there is a light element and at least one luminescence unit, described light element has at least one incidence surface and an exiting surface, described exiting surface is towards described display panel, and having a bending first side with described incidence surface, described luminescence unit has multiple light-emitting components and is adjacent to described incidence surface.

2. display device according to claim 1, is characterized in that, light-emitting component described in a curve negotiating, and the degree of crook of described curve equates with described first side.

3. display device according to claim 2, it is characterized in that, described display panel has a second side corresponding with described first side, and the radius-of-curvature of described first side, described second side or described curve is between 500 millimeters to 10000 millimeters.

4. display device according to claim 1, is characterized in that, described display panel also has a display surface, and described display surface is a concave curved surface or a convex surface.

5. display device according to claim 1, it is characterized in that, described luminescence unit also has a circuit board, and described light-emitting component is arranged at described circuit board, described circuit board has one the 3rd side, and the degree of crook of described the 3rd side mates mutually with described first side.

6. display device according to claim 5, is characterized in that, described circuit board has the surface that described light-emitting component is set, and described surface is towards described incidence surface.

7. display device according to claim 5, is characterized in that, described circuit board has the surface that described light-emitting component is set, and the extension on described surface is parallel with described exiting surface.

8. display device according to claim 7, is characterized in that, described light element also has a bottom surface relative with described exiting surface, described bottom surface and described Surface Contact.

9. display device according to claim 1, is characterized in that, described display device also comprises:

One backboard, accommodating described backlight module; And

One front framework, is connected and forms an accommodation space with described backboard, and described display panel and described backlight module are placed in described accommodation space.

10. display device according to claim 9, is characterized in that, the degree of crook of described display panel, described backlight module, described backboard and described front framework mates mutually.