CN219625844U - Direct type display module - Google Patents

Abstract

The utility model provides a direct type display module, which relates to the technical field of display screens, and comprises a glass substrate, a reflecting layer, an LED lamp bead layer, a transparent UV adhesive layer and a liquid crystal screen which are sequentially arranged; the transparent UV glue layer is provided with a plurality of protruding reflecting net points. According to the direct type display module provided by the utility model, the transparent UV adhesive layer and the plurality of reflection dots arranged on the transparent UV adhesive layer are arranged to mix light rays emitted by the LED lamp bead layer, most of the light rays are diffusely reflected back to the LED lamp bead layer through the reflection net points at the most dense position of the LED lamp bead, and then are reflected through the bottom reflection layer, and the light rays are changed into uniform area light sources from concentrated point light sources through multiple diffuse reflection of the reflection dots and the bottom reflection layer of the lamp panel, so that on the basis of guaranteeing the light utilization rate and the brightness, the components of the display module are reduced, and the thickness and the weight of the direct type display module are reduced.

Description

Direct type display module

Technical Field

The utility model relates to the technical field of display screens, in particular to a direct type display module.

Background

The LCD display screen can normally display pictures only by providing light rays depending on a backlight source; the backlight modes for LCD display screen at present mainly include side-in backlight and direct-down backlight; the side-entry backlight can realize thin design, but has low light utilization rate and insufficient light-emitting brightness; the direct type backlight module has better luminous brightness, but the light mixing distance needs to be set between the LED lamp panel and the diffusion plate of the light guide component to eliminate the LED lamp shadow, so that the direct type backlight module has larger thickness and does not accord with the concept of light and thin display pursued at present.

Disclosure of Invention

The utility model solves the problem that the existing direct type display module is thicker.

In order to solve the above problems, the present utility model provides a direct type display module, which includes a glass substrate, a reflective layer, an LED lamp bead layer, a transparent UV glue layer, and a liquid crystal screen, which are sequentially disposed; the transparent UV glue layer is provided with a plurality of protruding reflecting net points.

Optionally, the transparent UV glue layer is 0.2mm higher than the LED light bead layer.

Optionally, the LED light bead layer includes a plurality of uniformly distributed LED light beads.

Optionally, the positions of the reflecting dots are matched with the positions of the LED lamp beads, the density of the reflecting dots is gradually reduced from the center of the LED lamp beads to the periphery, and the reflecting dots are fully distributed on the transparent UV adhesive layer.

Optionally, the glass substrate includes a glass base layer and a circuit layer disposed on the glass base layer.

Optionally, the thickness of the reflective layer is 40 μm.

Optionally, the reflectivity of the reflective layer is greater than 94%.

Optionally, the liquid crystal display further comprises an optical film layer arranged between the transparent UV glue layer and the liquid crystal screen.

Compared with the prior art, the direct type display module provided by the utility model has the following advantages:

according to the direct type display module provided by the utility model, the transparent UV adhesive layer and the plurality of reflection dots arranged on the transparent UV adhesive layer are arranged to mix light rays emitted by the LED lamp bead layer, most of the light rays are diffusely reflected back to the LED lamp bead layer through the reflection net points at the most dense position of the LED lamp bead, and then are reflected through the bottom reflection layer, and the light rays are changed into uniform area light sources from concentrated point light sources through multiple diffuse reflection of the reflection dots and the bottom reflection layer of the lamp panel, so that on the basis of guaranteeing the light utilization rate and the brightness, the components of the display module are reduced, and the thickness and the weight of the direct type display module are reduced.

Drawings

Fig. 1 is a schematic structural diagram of a direct type display module according to the present utility model.

Reference numerals illustrate:

1-a glass substrate; 11-a glass substrate layer; 12-a circuit layer; a 2-reflective layer; 3-an LED lamp bead layer; 4-a transparent UV glue layer; 41-reflecting dots; 5-a liquid crystal screen; 6-optical film layer.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below are intended to be illustrative of the present utility model and not to be construed as limiting the utility model, and all other embodiments, based on the embodiments of the utility model, which a person of ordinary skill in the art would obtain without inventive faculty, are within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for simplicity of description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used merely for simplicity of description and are not to be construed as indicating or implying relative importance, or as implying an indication of the number of technical features being indicated. Thus, a feature defined as "first", "second" may include one or more such feature, either explicitly or implicitly. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, a first feature "above" or "below" a first feature may include both the first feature and a second feature in direct contact, and may also include both the first feature and the second feature not in direct contact but in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply indicating that the first feature is at a lower level than the second feature.

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.

In order to solve the problem that the existing direct type display module is thicker, the utility model provides a direct type display module, which is shown in fig. 1, and comprises a glass substrate 1, a reflecting layer 2, an LED lamp bead layer 3, a transparent UV adhesive layer 4 and a liquid crystal screen 5 which are sequentially arranged; wherein the transparent UV glue layer 4 is provided with a number of protruding reflective dots 41.

The preferred reflective dots 41 of the present utility model protrude from the surface of the transparent UV glue layer 4; in the working process of the direct type display module, the LED lamp bead layer 3 is a luminous layer, after light emitted by the LED lamp bead layer passes through the transparent UV adhesive layer 4, a small part of the light directly passes through gaps and the inside between the reflecting lattice points 41 and directly exits, and most of the light is diffusely reflected by the reflecting lattice points 41 back to the reflecting layer 2 at the bottom of the LED lamp panel, and then is diffusely reflected by the reflecting layer 2, and after light is diffusely reflected by the reflecting lattice points 41 and the reflecting layer 2 for multiple times, a uniform surface light source is formed, so that the purpose of uniform light mixing is achieved under the condition that a diffusion plate is not required to be arranged.

According to the direct type display module provided by the utility model, the transparent UV adhesive layer 4 and the plurality of reflection dots 41 arranged on the transparent UV adhesive layer 4 are arranged to mix light emitted by the LED lamp bead layer 3, so that a surface light source can be formed without arranging a diffusion plate, the components of the display module are reduced on the basis of ensuring the light utilization rate and the brightness, the thickness of the direct type display module is reduced, and the problem that the existing direct type display module is thicker is solved.

In the working process of the direct type display module, the light reflected by the reflecting lattice points 41 is mixed in the transparent UV adhesive layer 4; in order to give consideration to the light mixing effect and the thickness of the direct type display module, the thickness of the transparent UV adhesive layer 4 is preferably larger than that of the LED lamp bead layer 3, and the height of the transparent UV adhesive layer 4 is 0.2mm higher than that of the LED lamp bead layer 3, namely, as shown in FIG. 1, the bottom of the LED lamp bead layer 3 is flush with the bottom of the transparent UV adhesive layer 4, and the top of the transparent UV adhesive layer 4 is 0.2mm higher than that of the LED lamp bead layer 3.

Specifically, the LED lamp bead layer 3 comprises a plurality of uniformly distributed LED lamp beads, and transparent UV adhesive layers 4 are filled between adjacent LED lamp beads.

According to the LED lamp bead, the transparent UV adhesive layer 4 is arranged between the adjacent LED lamp beads, so that the adjacent LED lamp beads form an integral structure, the stability of the structure is improved, the light mixing space is increased or decreased, and the light mixing effect is improved.

The reflection net point 41 is preferably obtained by spraying a piezoelectric valve, and the material is reflection ink; and further preferably the reflective dots 41 have a reflectivity greater than 94% and a transmittance less than 4%; in order to ensure the light mixing effect, the position of the reflecting lattice point 41 is preferably matched with the position of the LED lamp beads, namely, the reflecting lattice point 41 is arranged above the LED lamp beads so as to reflect the light rays emitted by each LED lamp bead, realize light mixing and shade the lamp shadow.

The size, the number and the density of the reflecting dots 41 above each LED lamp bead 31 can be determined according to the requirements of the display module; according to the utility model, the density of the reflecting dots 41 is preferably gradually reduced from the center of the LED lamp beads to the periphery, the transparent UV adhesive layer 4 is fully distributed on the reflecting dots 41, so that most of light rays at the center of the LED lamp beads are diffusely reflected back to the LED lamp bead layer 3 through the reflecting dots 41, and then reflected through the bottom reflecting layer 2, and the light rays are changed into uniform surface light sources from concentrated point light sources through multiple diffuse reflection of the reflecting dots 41 and the lamp panel bottom reflecting layer 2, so that the uniformity of the light rays is improved.

Specifically, the glass substrate 1 in the present utility model includes a glass base layer 11, and a circuit layer 12 disposed on the glass base layer 11.

In order to ensure optical properties, the thickness of the reflective layer 2 is preferably 40 μm in the present utility model.

The material of the reflecting layer 2 can be selected according to the specific requirements; the reflective layer 2 is preferably prepared by means of piezo-valve spraying; the reflectivity of the reflective layer 2 is preferably greater than 94% in the present utility model.

Furthermore, the direct type display module provided by the utility model further comprises an optical film layer 6 arranged between the transparent UV adhesive layer 4 and the liquid crystal screen 5 according to requirements; the optical film 6 may be tailored to specific needs.

Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the utility model.

Claims (8)

1. The direct type display module is characterized by comprising a glass substrate (1), a reflecting layer (2), an LED lamp bead layer (3), a transparent UV adhesive layer (4) and a liquid crystal screen (5) which are sequentially arranged; a plurality of protruding reflecting lattice points (41) are arranged on the transparent UV adhesive layer (4).

2. Direct type display module assembly according to claim 1, characterized in that the transparent UV glue layer (4) is 0.2mm higher than the LED bead layer (3).

3. The direct type display module assembly according to claim 1, wherein the LED lamp bead layer (3) comprises a plurality of uniformly distributed LED lamp beads.

4. A direct type display module assembly as claimed in claim 3, characterized in that the positions of the reflecting dots (41) are adapted to the positions of the LED beads, the density of the reflecting dots (41) gradually decreases from the center of the LED beads to the periphery, and the reflecting dots (41) are covered with the transparent UV glue layer (4).

5. Direct type display module according to any of claims 1-4, characterized in that the glass substrate (1) comprises a glass matrix layer (11) and a wiring layer (12) arranged on the glass matrix layer (11).

6. Direct type display module according to claim 5, characterized in that the thickness of the reflective layer (2) is 40 μm.

7. Direct type display module assembly according to claim 5, characterized in that the reflectivity of the reflective layer (2) is greater than 94%.

8. The direct type display module assembly as claimed in claim 5, further comprising an optical film layer (6) disposed between the transparent UV glue layer (4) and the liquid crystal panel (5).