CN216287412U

CN216287412U - Display module and electronic equipment

Info

Publication number: CN216287412U
Application number: CN202122840967.9U
Authority: CN
Inventors: 王智雄; 莫祖良
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-04-12
Anticipated expiration: 2031-11-18

Abstract

The embodiment of the application provides a display module assembly and electronic equipment, the display module assembly includes base plate, light source subassembly, apron and light-equalizing plate, the light source subassembly includes a plurality of light sources, light-equalizing plate set up in the light source subassembly with between the apron, light-equalizing plate is close to one side of light source subassembly is provided with a plurality of light-equalizing grooves, every light-equalizing groove is corresponding to one on the light source. The light source assembly of the display module comprises a plurality of light sources, the light sources are distributed on the surface of the substrate in an array mode, the cover plate is arranged on one side, away from the substrate, of the light source assembly, the light equalizing plate is arranged between the light source assembly and the cover plate, a plurality of light equalizing grooves are formed in the light equalizing plate, each light equalizing groove corresponds to one light source, the light equalizing grooves can disperse light rays of the light sources, the balance of the light brightness of the display module is improved, and the picture dizziness effect caused by the light sources is reduced.

Description

Display module and electronic equipment

Technical Field

The application belongs to the technical field of electronic equipment components, and particularly relates to a display module and electronic equipment.

Background

Along with the continuous development of intelligent electronic equipment, the display screen also becomes more and more important as the important display module group of electronic equipment. The variety of display screens is very rich, from the earliest Cathode Ray Tube (CRT) display to the following liquid crystal display, to the more mainstream Organic Light Emitting Diode (OLED) display, mini LED (sub-millimeter light emitting diode) display and micro LED (micro light emitting diode) display in the industry at present. Among them, the mini LED display has been widely pursued by various manufacturers due to its high contrast and color saturation.

However, in a display represented by a mini LED display, the density of LED arrays is still low, and the spacing range between adjacent LEDs is generally 0.1-1mm, which causes a problem of local over-lighting on the display, causes a dizzy feeling when a user watches the display, and reduces the display effect of the display.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the application is to provide a new technical scheme of a display module and an electronic device.

According to a first aspect of the present application, there is provided a display module comprising:

the light source assembly comprises a plurality of light sources, and a plurality of light source arrays are distributed on the surface of the substrate;

the cover plate is arranged on one side, away from the substrate, of the light source assembly;

the light equalizing plate is arranged between the light source assembly and the cover plate, one side, close to the light source assembly, of the light equalizing plate is provided with a plurality of light equalizing grooves, and each light equalizing groove corresponds to one light source.

According to a second aspect of the present application, there is provided an electronic device including the display module of the first aspect.

One technical effect of the embodiment of the application is as follows:

the embodiment of the application provides a display module assembly, display module assembly includes base plate, light source subassembly, apron and equal worn-out fur. The light source assembly of the display module comprises a plurality of light sources, the light sources are distributed on the surface of the substrate in an array mode, the cover plate is arranged on one side, away from the substrate, of the light source assembly, the light equalizing plate is arranged between the light source assembly and the cover plate, a plurality of light equalizing grooves are formed in the light equalizing plate, each light equalizing groove corresponds to one light source, the light equalizing grooves can disperse light rays of the light sources, the balance of the light brightness of the display module is improved, and the picture dizziness effect caused by the light sources is reduced.

Further features of the present application and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which is to be read in connection with the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.

Fig. 1 is a first side view of a display module according to an embodiment of the present disclosure;

fig. 2 is a schematic partial light-emitting view of a display module according to an embodiment of the present disclosure;

fig. 3 is a second side view of a display module according to an embodiment of the present disclosure;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

fig. 5 is a side view of a light homogenizing plate according to an embodiment of the present disclosure;

fig. 6 is a schematic view of a light-equalizing groove of a light-equalizing plate according to an embodiment of the present disclosure.

Wherein: 1. a substrate; 2. a light source assembly; 21. a light source; 3. a cover plate; 4. a light homogenizing plate; 41. a light homogenizing groove; 411. a planar portion; 412. an inclined portion; 42. an atomizing layer; 5. a diffusion membrane; 6. a brightness enhancement film.

Detailed Description

Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the application, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Referring to fig. 1 to 6, an embodiment of the present application provides a display module, including:

base plate 1, light source subassembly 2, apron 3 and all smooth board 4, light source subassembly 2 includes a plurality of light sources 21, and is a plurality of light source 21 array distribution in the surface of base plate 1, apron 3 set up in light source subassembly 2 keeps away from one side of base plate 1, apron 3 can be the liquid crystal apron, so that when light source 21 transmits brightly, apron 3 can also be right light source subassembly 2 forms fine protection.

Referring to fig. 1 and 2, the light equalizing plate 4 is disposed between the light source assembly 2 and the cover plate 3, one side of the light equalizing plate 4 close to the light source assembly 2 is provided with a plurality of light equalizing grooves 41, each light equalizing groove 41 corresponds to one light source 21, and the light equalizing grooves 41 can disperse light of the light sources 21, so as to improve the balance of the brightness of the display module.

When one of the light equalizing grooves 41 is correspondingly disposed on one of the light sources 21, specifically, the light equalizing groove 41 may form a structure similar to a hat, the light source 21 is covered by the downward-inclined side surface close to the edge of the light equalizing groove 41 and the middle top surface, and the light rays of the light source 21 may be diffused by the downward-inclined side surface of the light equalizing groove 41, so that the light energy distribution of the light emitted by the light source 21 may be changed, and the lack of brightness in the dark area between the light sources 21 may be compensated. Meanwhile, the light energy right above the light source 21 can be reduced, and the light energy on the side edge of the light source 21 is increased, so that the picture display effect is more uniform.

The embodiment of the application provides display module assembly includes base plate 1, light source subassembly 2, apron 3 and light equalizing plate 4, light source subassembly 2 includes a plurality of light sources 21, and is a plurality of light source 21 array distribution in the surface of base plate 1, apron 3 set up in light source subassembly 2 keeps away from one side of base plate 1, light equalizing plate 4 set up in light source subassembly 2 with between the apron 3, be provided with a plurality of light equalizing grooves 41 on the light equalizing plate 4, every light equalizing groove 41 corresponds the cover and locates one on the light source 21, light equalizing groove 41 can be right light source 21's light is dispersed, promotes the equilibrium of display module assembly luminance reduces the picture dizzy effect that light source 21 leads to. In addition, the light equalizing plate 4 adjusts the brightness balance of the light source assembly 2, so that the number of the light sources 21 in the light source assembly 2 can be reduced, the power consumption of the light source assembly 2 is further reduced, and meanwhile, the using amount of the atomization film material in the display module can be reduced.

Alternatively, referring to fig. 4, the light uniformizing groove 41 includes a planar portion 411 and an inclined portion 412, the planar portion 411 is directly opposite to the light source 21 and is parallel to the substrate 1, and the inclined portion 412 is provided around a peripheral side of the planar portion 411 and is inclined toward the substrate 1.

Specifically, the light-homogenizing plate 4 may be made of a high-transmittance material such as a Polycarbonate (PC) material or a Polymethyl methacrylate (PMMA) material, and a plurality of light-homogenizing grooves 41 may be formed on one side of the light-homogenizing plate 4 close to the light source assembly 2 in a high-pressure injection molding manner. The planar portion 411 may transmit light directly above the light source 21 when being parallel to the substrate 1, and in order to equalize brightness of light presented outward by the light source 21, the planar portion 411 may be provided as an atomized layer having an astigmatism effect, for example, the planar portion 411 is provided as a surface having a fine groove blasting structure, or the planar portion 411 is provided as a surface having a light reflective coating, for example, a particle coating layer having a high refractive index such as titanium dioxide is provided on the surface of the planar portion 411. The slope formed by the slope part 412 can improve the brightness of the side surface of the light source 21, thereby improving the balance of the brightness of the display module.

Alternatively, referring to fig. 3 and 4, the inclined portion 412 is inclined at an angle ranging from 45 ° to 60 ° with respect to the planar portion 411.

Specifically, when the inclined portion 412 is inclined toward the substrate 1 with respect to the planar portion 411, the luminance of the side surface of the light source 21 can be improved, and the luminance of the light source assembly 2 can be more uniformly balanced. And the angle of the inclined part 412 inclined relative to the plane part 411 is directly related to the light homogenizing effect of the light homogenizing groove 41. For example, when the inclination angle of the inclined portion 412 with respect to the planar portion 411 is too small, that is, the inclined portion 412 is close to being parallel to the planar portion 411, the luminance directly above the light sources 21 is high, and the luminance of the side surface of the light sources 21 cannot be improved, so that dark areas among a plurality of the light sources 21 are obvious; on the other hand, when the angle of the inclined portion 412 inclined with respect to the planar portion 411 is too large, for example, when the inclined portion 412 is perpendicular to the planar portion 411, the brightness of the light source 21 is separated from the brightness of the light source 21 directly above the inclined portion 412 in addition to the brightness of the side surface of the light source 412, and a dark area is generated between the plurality of light sources 21, which affects the display screen effect of the display module.

Alternatively, referring to fig. 5 and 6, the inclined portion 412 has a tapered shape, and the tapered surface of the inclined portion 412 includes a conical surface, a triangular tapered surface, a rectangular tapered surface, or a pentagonal tapered surface.

Specifically, the light source 21 has a generally square shape in size, and the light source 21 emits light to the outside through a top surface and a plurality of side surfaces thereof. When the inclined part 412 is a conical surface, the inclined part 412 can be matched with the light sources 21 with different numbers of side surfaces, and the inclined part 412 can improve the brightness of the side surfaces of the light sources 21 no matter how the number of the side surfaces of the light sources 21 is changed; when the tapered surface of the inclined portion 412 is a multi-surface tapered surface such as a triangular tapered surface, a rectangular tapered surface, or a pentagonal tapered surface, the number of the side surfaces of the light source 21 may be matched with the number of the tapered surfaces of the inclined portion 412, so that one side surface of the light source 21 corresponds to one tapered surface of the inclined portion 412, and the brightness of the side surface of the light source 21 is precisely adjusted.

In a specific embodiment, referring to fig. 6, the tapered surface of the inclined portion 412 is a quadrangular pyramid surface, and the light source 21 is a cube, and each tapered surface of the quadrangular pyramid inclined portion 412 is matched with one side surface of the light source 21, so that the brightness of the side surface of the light source 21 is effectively improved.

Alternatively, referring to fig. 4 and 6, the tapered surface of the inclined portion 412 is stepped, and an included angle between adjacent step surfaces of the stepped tapered surface ranges from 60 ° to 90 °.

Specifically, when the tapered surface of the inclined portion 412 is stepped, a plurality of prism structures facing the light source 21 may be formed between adjacent stepped surfaces of the tapered surface, and the prism structures may condense light rays on the side surface of the light source 21, so as to improve the brightness on the side surface of the light source 21 and the brightness between the plurality of light sources 21, and ensure the balance of the display brightness of the display module. The size of the included angle between the adjacent step surfaces of the conical surface is directly related to the effect of condensing the light on the side surface of the light source 21. For example, when the included angle between adjacent step surfaces of the tapered surface is too small, the incident angle of the light beam emitted from the side surface of the light source 21 to the step surface is too large, and the light transmission effect of the inclined part 412 is reduced; when the included angle between the adjacent step surfaces of the tapered surfaces is too large, that is, the inclined portion 412 is close to the plane, effective light condensation of the light on the side surface of the light source 21 cannot be achieved, and the brightness of the side surface of the light source 21 is also limited.

Alternatively, referring to fig. 4 and 5, the side of the light homogenizing plate 4 away from the light source assembly 2 forms an atomizing layer 42.

Specifically, the matte layer 42 may be a surface with a groove sandblasting structure, or a matte layer with a slightly reflective coating surface, so that the matte layer 42 can scatter light directly above the light source 21, and the brightness of light directly above the light source 21 is close to that of the side surface of the light source 21. In addition, the atomizing layer 42 can cooperate with the planar portion 411 having an atomizing effect to further improve the uniformity of the display image of the display module.

Optionally, the light homogenizing groove 41 is hemispherical.

Specifically, when the light equalizing groove 41 is hemispherical, the hemispherical light equalizing groove 41 may be covered on the light source 21, so as to improve the side brightness of the light source 21. Moreover, the semispherical light-equalizing groove 41 can be matched with the light sources 21 with different numbers of side surfaces, and the semispherical light-equalizing groove 41 can balance and improve the brightness of the side surfaces of the light sources 21 no matter how the number of the side surfaces of the light sources 21 is changed, so that the display effect of the display module is ensured.

Optionally, the light source 21 is an LED light source.

Specifically, since the plurality of light sources 21 are distributed on the surface of the substrate 1 in an array, uniformity of distribution of the light sources 21 is ensured. The substrate 1 may be a Circuit substrate, for example, a Printed Circuit Board (PCB) or a Flexible Printed Circuit Board (FPC), or an entire line of a glass substrate plated with thick copper for conducting an LED light source. The LED Light Sources (LEDs) may be welded to the substrate 1 by a fastener or ultrasonic welding, and a white tape or other material for increasing reflectivity may be attached between the LED light sources to ensure the brightness of the side of the light source 21.

The light equalizing grooves 41 on the light equalizing plate 4 can change the light energy distribution of the light emitted by the LED light sources, supplement the brightness of dark areas between the LED light sources, weaken the light energy right above the LED light sources, increase the side brightness between the LED light sources, enable the picture effect of the display module to be more uniform, and reduce the picture dizziness effect caused by the process defects of the LED light sources.

Optionally, referring to fig. 1 and 2, the display module further includes a diffusion film 5, and the diffusion film 5 is disposed between the light equalizing plate 4 and the cover plate 3.

Specifically, the light generated by the light source 21 of the light source assembly 2 may have high and non-uniform intensity after passing through the light homogenizing plate 4. When the diffusion film 5 is disposed between the light uniformizing plate 4 and the cover plate 3, the diffusion film 5 can diffuse light, that is, light can be diffused when passing through the surface of the diffusion film 5, so that light generated by the light source 21 can be diffused softly and uniformly, and the structure of the diffusion film 5 can be obtained by coating optical diffusion particles on two surfaces of a transparent substrate such as PET.

Optionally, referring to fig. 1 and 2, the display module further includes a brightness enhancement film 6, and the brightness enhancement film 6 is disposed between the diffusion film 5 and the cover plate 3.

Specifically, the brightness enhancement film 6 may be one or more layers, and the brightness enhancement film 6 may be a PET diffusion film or a Quantum Dot (QD) film. The light generated from the light source 21 of the light source module 2 may still have a problem of scattering or angular deviation after passing through the diffusion film 5. The brightness enhancement film 6 can concentrate the scattered light to the front side, so as to achieve the purpose of improving the front brightness. In addition, the brightness enhancement film 6 can reflect and recycle light rays which are not utilized outside the visual angle, so that the loss of the light rays is reduced, and the purposes of energy conservation, low cost and environmental protection are achieved.

The embodiment of the application also provides electronic equipment, and the electronic equipment comprises the display module.

Specifically, the display module of the electronic device includes a substrate 1, a light source assembly 2, a cover plate 3 and a light-equalizing plate 4, the light source assembly 2 includes a plurality of light sources 21, a plurality of light-equalizing grooves 41 are provided on the light-equalizing plate 4, each light-equalizing groove 41 corresponds to one light source 21, and the light-equalizing grooves 41 can disperse light of the light sources 21, so that the balance of the display brightness of the electronic device is improved, and the picture dizziness caused in the use process of the electronic device is reduced.

Additionally, the electronic device includes, but is not limited to, one of a smart watch, a cell phone, a tablet, an e-book reader, an MP3 player, an MP4 player, a computer, a set-top box, a smart television, and a wearable device.

Although some specific embodiments of the present application have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present application. The scope of the application is defined by the appended claims.

Claims

1. A display module, comprising:

the light source module comprises a substrate (1) and a light source assembly (2), wherein the light source assembly (2) comprises a plurality of light sources (21), and the plurality of light sources (21) are distributed on the surface of the substrate (1) in an array manner;

the cover plate (3), the cover plate (3) is arranged on one side of the light source component (2) far away from the substrate (1);

the light source assembly comprises a light equalizing plate (4), wherein the light equalizing plate (4) is arranged between the light source assembly (2) and the cover plate (3), one side, close to the light source assembly (2), of the light equalizing plate (4) is provided with a plurality of light equalizing grooves (41), and each light equalizing groove (41) corresponds to one light source (21).

2. The display module according to claim 1, wherein the light uniformizing grooves (41) include a planar portion (411) and an inclined portion (412), the planar portion (411) is opposed to the light source (21) and is parallel to the substrate (1), and the inclined portion (412) is provided around a peripheral side of the planar portion (411) and is inclined toward the substrate (1).

3. A display module according to claim 2, characterized in that the inclined portion (412) is inclined with respect to the planar portion (411) in an angle in the range of 45 ° -60 °.

4. The display module according to claim 2, wherein the inclined portion (412) has a conical shape, and the conical surface of the inclined portion (412) comprises a conical surface, a triangular conical surface, a quadrangular conical surface, or a pentagonal conical surface.

5. The display module according to claim 4, wherein the tapered surface of the inclined portion (412) is stepped, and the included angle between adjacent stepped surfaces of the step shape is in the range of 60 ° to 90 °.

6. The display module according to claim 1, wherein the side of the light homogenizing plate (4) away from the light source assembly (2) forms a matte layer (42).

7. The display module according to claim 1, wherein the light uniformizing grooves (41) are hemispherical.

8. The display module according to claim 1, further comprising a diffusion film (5), wherein the diffusion film (5) is disposed between the light homogenizing plate (4) and the cover plate (3).

9. The display module according to claim 8, further comprising a brightness enhancement film (6), wherein the brightness enhancement film (6) is disposed between the diffuser film (5) and the cover plate (3).

10. An electronic device comprising the display module according to any one of claims 1 to 9.