CN110824777B - Backlight modules, displays and electronic equipment - Google Patents

Abstract

The invention discloses a backlight module, a display screen and electronic equipment, wherein the backlight module comprises a light-emitting component, the light-emitting component comprises a substrate, a first light-emitting device, a second light-emitting device and a third light-emitting device, the substrate is provided with a first surface, a second surface and a third surface, the first surface is adjacent to the second surface, the third surface is arranged opposite to the second surface, the first light-emitting device is arranged on the first surface, the second light-emitting device is arranged on the second surface, and the third light-emitting device is arranged on the third surface. The backlight module can be arranged corresponding to the bent part of the display screen, light emitted by the first light-emitting device can be used as backlight of the bent part, and light emitted by the second light-emitting device and light emitted by the third light-emitting device can be used as backlight of other parts of the display screen. Therefore, after the structure is adopted, the bending part of the display screen can display, so that the screen of the electronic equipment is higher in occupation ratio.

Description

Backlight modules, displays and electronic equipment

technical field

The present invention relates to the technical field of backlight devices, and in particular, to a backlight module, a display screen and an electronic device.

Background technique

As the user's demand for the use of electronic devices continues to increase, the screen size of the electronic devices continues to expand. At the same time, the increase in the screen size usually leads to an increase in the overall size of the electronic device, which brings about the problem of inconvenience in portability. Therefore, for the structural design of electronic devices, larger screen size and portability have become a prominent contradiction.

In order to meet users' demands for larger screen size and portability at the same time, foldable electronic devices have emerged. This kind of electronic device has a folded state and an unfolded state. When the electronic device is in the unfolded state, the display screen is flattened, so that a larger display area can be obtained; when the electronic device is in the folded state, the display screen is bent, and the whole of the electronic device is The size is reduced for easy portability.

However, for a display screen with a backlight module, a corresponding backlight module is not disposed at the bending part of the display screen, so the bending part cannot be displayed, resulting in a low screen ratio of the electronic device.

SUMMARY OF THE INVENTION

The invention discloses a backlight module, a display screen and an electronic device to solve the problem that the screen ratio of the electronic device is low.

In order to solve the above problems, the present invention adopts the following technical solutions:

A backlight module includes a light-emitting assembly, the light-emitting assembly includes a substrate, a first light-emitting device, a second light-emitting device and a third light-emitting device, the substrate has a first surface, a second surface and a third surface, the The first surface is adjacent to the second surface, the third surface is arranged opposite to the second surface, the first light emitting device is arranged on the first surface, and the second light emitting device is arranged on the second surface On the second surface, the third light emitting device is disposed on the third surface.

A display screen, comprising a display screen main body and the above-mentioned backlight module, the display screen main body can be bent into a first area, a second area and a third area, the third area is located in the first area and the Between the second areas, the backlight module is disposed corresponding to the third area.

An electronic device includes the above-mentioned display screen.

The technical scheme adopted in the present invention can achieve the following beneficial effects:

In the backlight module disclosed in the present invention, the light-emitting assembly includes a substrate, a first light-emitting device, a second light-emitting device, and a third light-emitting device, and the first light-emitting device, the second light-emitting device, and the third light-emitting device may share the same substrate, and The three can emit light in different directions. The backlight module can be set corresponding to the bend of the display screen, the light emitted by the first light-emitting device can be used as the backlight at the bend, and the light emitted by the second light-emitting device and the third light-emitting device can be used as the backlight of other parts of the display screen. . It can be seen that after adopting this structure, the display screen can also be displayed at the bend, so that the screen ratio of the electronic device is higher.

Description of drawings

The accompanying drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the attached image:

1 is a schematic diagram of an electronic device disclosed in an embodiment of the present invention;

Fig. 2 is the sectional view along the A-A direction of Fig. 1;

FIG. 3 is a schematic diagram of a backlight module disclosed in an embodiment of the present invention.

Description of reference numbers:

100-display main body, 110-first area, 120-second area, 130-third area, 200-light-emitting component, 210-substrate, 211-first surface, 212-second surface, 213-third surface , 220-first light-emitting device, 221-first light-emitting chip, 222-first light-emitting material, 230-second light-emitting device, 231-second light-emitting chip, 232-second light-emitting material, 240-third light-emitting device, 241-the third light-emitting chip, 242-the third light-emitting material, 300-the light source board, 400-the hinge structure, 510-the first main board, 520-the second main board.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the corresponding drawings. Obviously, the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

The technical solutions disclosed by the various embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 3 , an embodiment of the present invention discloses a backlight module. The backlight module can be used as a part of a display screen. The display screen can include a display screen main body 100. The display screen main body 100 can be bent into The first area 110, the second area 120 and the third area 130, the third area 130 is located between the first area 110 and the second area 120, the backlight module can be set corresponding to the third area 130, and the third area 130 here is Bends of the display.

The above-mentioned backlight module may specifically include a light-emitting assembly 200 , and the light-emitting assembly 200 includes a substrate 210 , a first light-emitting device 220 , a second light-emitting device 230 and a third light-emitting device 240 . The substrate 210 may be a ceramic substrate, the substrate 210 has a first surface 211, a second surface 212 and a third surface 213, the first surface 211 is adjacent to the second surface 212, and the third surface 213 is disposed opposite to the second surface 212, The first light emitting device 220 is disposed on the first surface 211 , the second light emitting device 230 is disposed on the second surface 212 , and the third light emitting device 240 is disposed on the third surface 213 .

In the backlight module disclosed in the embodiment of the present invention, the first light-emitting device 220 , the second light-emitting device 230 and the third light-emitting device 240 can share the same substrate 210 , compared to the whole backlight module using multiple independent light bars According to the solution, the backlight module can reduce the space occupied by the backlight module and at the same time reduce the cost of the backlight module. In addition, the first light-emitting device 220, the second light-emitting device 230 and the third light-emitting device 240 can emit light in different directions, the backlight module can be arranged corresponding to the bending of the display screen, and the light emitted by the first light-emitting device 220 can be used as a For the backlight at the bend, the light emitted by the second light emitting device 230 and the third light emitting device 240 can be used as the backlight for other parts of the display screen. It can be seen that after adopting this structure, the display screen can also be displayed at the bend, so that the screen ratio of the electronic device is higher.

The above-mentioned light-emitting components 200 can be provided with only one. In order to increase the light-emitting area of the backlight module and ensure the light-emitting effect of the backlight module, the substrate 210 can be set to a strip-shaped structure, and even the first light-emitting device 220, the second light-emitting device 220 and the second light-emitting device 220 are required. The device 230 and the third light-emitting device 240 are arranged in a strip-shaped structure. After the backlight module is assembled with the display screen main body 100, the extension directions of the substrate 210, the first light-emitting device 220, the second light-emitting device 230 and the third light-emitting device 240 are all the same. It is parallel to the bending axis of the display screen body 100 . At this time, the size of the substrate 210 , the first light emitting device 220 , the second light emitting device 230 and the third light emitting device 240 are relatively large, and occupy a relatively large space.

In order to solve the above problems, the backlight module further includes a light source plate 300 , and the light source plate 300 is a strip-shaped structure. After the backlight module is assembled with the display screen body 100 , the extension direction of the light source plate 300 is parallel to the bending of the display screen body 100 . axis. The number of the light-emitting components 200 is at least two, and the at least two light-emitting components 200 are disposed on the light source board 300 at intervals. There are at least two light-emitting components 200, so that different positions of the backlight module can emit light. At the same time, the way that the light-emitting components 200 are arranged at intervals not only does not affect the light-emitting effect of the backlight module, but also reduces the size of each light-emitting component 200. , the overall space occupied by each light emitting assembly 200 is smaller. In addition, when this arrangement is adopted, the installation of each light-emitting assembly 200 is relatively flexible, thereby facilitating the assembly operation of the backlight module and the display screen main body 100 .

The above-mentioned light source board 300 can be electrically connected to the first light emitting device 220 , the second light emitting device 230 and the third light emitting device 240 through the substrate 210 , so as to realize the driving of the three. The light source board 300 may adopt a rigid structure, but in order to facilitate the assembly of the backlight module and the display screen body 100 , the light source board 300 may be configured as a flexible circuit board. At this time, the backlight module can be deformed, so as to facilitate the assembly operation. At the same time, when the backlight module is accommodated, the space occupied by the backlight module can be reduced by bending the backlight module, thereby facilitating the storage of the backlight module.

In an optional embodiment, in order to simplify the structures of the first light-emitting device 220 , the second light-emitting device 230 and the third light-emitting device 240 , the first light-emitting device 220 , the second light-emitting device 230 and the third light-emitting device 240 all include light-emitting chips. and light-emitting material, the light-emitting chip is disposed on the substrate 210, and the light-emitting material wraps the light-emitting chip. Specifically, the first light-emitting device 220 includes a first light-emitting chip 221 and a first light-emitting material 222 , the second light-emitting device 230 includes a second light-emitting chip 231 and a second light-emitting material 232 , and the third light-emitting device 240 includes a third light-emitting chip 241 and the third light-emitting material 242, the first light-emitting chip 221 is disposed on the first surface 211 of the substrate 210, the second light-emitting chip 231 is disposed on the second surface 212 of the substrate 210, and the third light-emitting chip 241 is disposed on the third surface of the substrate 210 213 , the first light-emitting material 222 wraps the first light-emitting chip 221 , the second light-emitting material 232 wraps the second light-emitting chip 231 , and the third light-emitting material 242 wraps the third light-emitting chip 241 .

The main function of the above-mentioned backlight module is to provide backlight, so the first light-emitting device 220, the second light-emitting device 230 and the third light-emitting device 240 can all include backlights. When the number of light-emitting assemblies 200 is at least two, each The first light emitting device 220 , the second light emitting device 230 and the third light emitting device 240 of each light emitting assembly 200 are all backlights, and some light emitting assemblies 200 may include backlights, and in another part of the light emitting assemblies 200 , the first light emitting device 220 At least one of the second light emitting device 230 and the third light emitting device 240 includes a light emitting device other than a backlight, and the function of the light emitting device is different from that of the backlight, for example, the light emitting device may be a flash lamp or a fill light. Certainly, the first light emitting device 220, the second light emitting device 230, and the third light emitting device 240 may also include other devices having a light emitting function, which is not limited in this embodiment of the present invention.

Based on the backlight module described in any of the above embodiments, an embodiment of the present invention further discloses a display screen, which includes a display screen main body 100 and the backlight module described in any of the above-mentioned embodiments, and the display screen main body 100 can be bent into a first An area 110 , a second area 120 and a third area 130 , the third area 130 is located between the first area 110 and the second area 120 , and the backlight module is disposed corresponding to the third area 130 . As mentioned above, after adopting this structure, the display screen can also be displayed at the bend, so that the screen ratio of the electronic device is higher.

The above-mentioned first surface 211 can extend along the thickness direction of the display screen. At this time, the first light-emitting device 220 needs to work in a side-emitting manner, so an additional light-guiding structure needs to be provided, so that the light emitted by the first light-emitting device 220 passes through the light-guiding structure. The structure is uniformly injected into the third region 130 , which makes the structure of the backlight module too complicated, and the light-emitting effect depends on the light-guiding performance of the light-guiding structure, which is prone to the problem of poor light-emitting effect. Based on this, the first surface 211 can face the third area 130 , and the light emitted by the first light emitting device 220 can be directly conducted to the third area 130 without additional light guide structure to guide the light. It can be seen that the first light emitting device 220 works in a top light emitting manner, which can simplify the structure of the backlight module and improve the light emitting effect.

Further, since the second surface 212 and the third surface 213 are both the side surfaces of the substrate 210, the second light-emitting device 230 and the third light-emitting device 240 work in a side-emitting manner, which can correspond to the second light-emitting device 230 and the third light-emitting device 240. The device 240 is provided with a light guide structure, so that the light-emitting effect of the second light-emitting device 230 and the third light-emitting device 240 is better, and the purpose of optimizing the display effect is achieved.

When the first surface 211 faces the third area 130, the first light emitting device 220 faces the third area 130. At this time, the first light emitting device 220 includes a backlight, and the first light emitting device 220 further includes a flash lamp and a fill light. At least one, so that a part of the light emitted by the first light emitting device 220 can directly exit the third region 130, so as to realize the function of flashing or filling light. Since the first light emitting device 220 faces the third region 130, the first light emitting device 220 has better effects when performing flashing or fill light operations.

Based on the display screen described in any of the foregoing embodiments, an embodiment of the present invention further discloses an electronic device, and the electronic device may include the display screen described in any of the foregoing embodiments.

In an optional embodiment, the above-mentioned electronic device further includes a first main body part, a second main body part, and a hinge structure 400, the first main body part is hinged with the second main body part through the hinge structure 400, and the display screen main body 100 is connected with the first main body part. The main body part is connected to the second main body part, and the hinge structure 400 is disposed corresponding to the third area 130 . Here, the first main body part may include a first main board 510 , the second main body part may include a second main board 520 , and the hinge structure 400 may be located between the first main board 510 and the second main board 520 . After the first main body part and the second main body part are hinged, the first main body part and the second main body part can rotate relative to each other, so that the display screen main body 100 can be folded. The device is more portable, and the first main body is hinged with the second main body through the hinge structure 400, and the specific structure of the hinge structure 400 can be optimized to make the relative rotation of the first main body part and the second main body part more accurate and reliable.

The specific structure of the hinge structure 400 can be selected flexibly. For example, the hinge structure 400 may include a hinge shaft, and the structure of the hinge structure 400 is simpler. Certainly, the hinge structure 400 may also adopt other structural forms, which are not limited in this embodiment of the present invention.

As can be seen from the above content, the backlight module and the hinge structure 400 can be arranged corresponding to the third area 130, the backlight module and the hinge structure 400 may not be in contact with each other, and a certain interval may be maintained between them. The utilization rate of the space in the device can make the backlight module connect with the hinge structure 400 . That is, the backlight module can be installed through the hinge structure 400 , so there is no need to additionally provide a structure for installing the backlight module, thereby saving the space occupied by the structure and facilitating the installation of other components in the electronic device.

The electronic device disclosed in the embodiments of the present invention may be a smart phone, a tablet computer, an e-book reader, or a wearable device. Certainly, the electronic device may also be other devices, which are not limited in this embodiment of the present invention.

The above embodiments of the present invention mainly describe the differences between the various embodiments. As long as the different optimization features of the various embodiments are not contradictory, they can be combined to form better embodiments. No longer.

The above descriptions are merely embodiments of the present invention, and are not intended to limit the present invention. Various modifications and variations of the present invention are possible for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims (9)

1. A display screen is characterized by comprising a display screen main body (100) and a backlight module, wherein the display screen main body (100) can be bent into a first area (110), a second area (120) and a third area (130), the third area (130) is positioned between the first area (110) and the second area (120), and the backlight module is arranged corresponding to the third area (130);

the backlight module comprises a light emitting assembly (200), wherein the light emitting assembly (200) comprises a substrate (210), a first light emitting device (220), a second light emitting device (230) and a third light emitting device (240), the substrate (210) is provided with a first face (211), a second face (212) and a third face (213), the first face (211) is adjacent to the second face (212), the third face (213) is opposite to the second face (212), the first light emitting device (220) is arranged on the first face (211), the second light emitting device (230) is arranged on the second face (212), and the third light emitting device (240) is arranged on the third face (213).

2. A display screen according to claim 1, wherein the backlight module further comprises a light source board (300), the light source board (300) is a bar structure, the number of the light emitting assemblies (200) is at least two, and at least two of the light emitting assemblies (200) are arranged on the light source board (300) at intervals.

3. A display screen according to claim 2, characterised in that the light source board (300) is a flexible circuit board.

4. The display screen of claim 1, wherein the first light emitting device (220), the second light emitting device (230), and the third light emitting device (240) each comprise a light emitting chip disposed on the substrate (210) and a light emitting material encapsulating the light emitting chip.

5. A display screen according to claim 1, wherein the first light emitting device (220) comprises a backlight and the first light emitting device (220) further comprises at least one of a flash and a fill light.

6. A display screen according to claim 1, characterised in that the first face (211) faces the third area (130).

7. An electronic device characterized by comprising a display screen according to any one of claims 1 to 6.

8. The electronic device of claim 7, further comprising a first main body portion, a second main body portion and a hinge structure (400), wherein the first main body portion is hinged to the second main body portion through the hinge structure (400), the display screen main body (100) is connected to the first main body portion and the second main body portion, and the hinge structure (400) is disposed corresponding to the third region (130).

9. The electronic device of claim 8, wherein the backlight module is coupled to the hinge structure (400).

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