TWM573449U - Display device - Google Patents

Abstract

A display device including a housing, a backlight module, a display module, and an optical compensation layer is provided. The housing includes a body and a support structure. The backlight module includes at least one light emitting element, a light guiding element, and a plurality of optical layers, and the optical layers are disposed on the top surface of the light guiding element. The optical compensation layer is disposed on the second surface of the support structure and located between the support structure and the backlight module, wherein the extending direction of the optical compensation layer is parallel to the extending direction of the light guiding element. The orthographic projection of the optical compensation layer on the top surface of the light guiding element overlaps with the orthographic projection of the support structure on the top surface of the light guiding element.

Description

Display device

This novel creation is about an electronic device, and especially about a display device.

In current display panels, quantum dot materials are used more and more widely as optical elements to convert light wavelengths. Quantum dot materials are semiconductor nanocrystals, and the particle size is less than 10 nanometers in particle size, which is not directly visible to the naked eye. In detail, among the characteristics of quantum dot materials, when they are stimulated by light or electricity, the quantum dot materials emit colored light, and the color is determined by the composition material, size, and shape. In the current display panel market, quantum dot materials are widely used in the optical film material interlayer in the backlight module, and are generally matched with blue light-emitting diodes for light mixing to achieve the effect of white light.

However, because there is a gap between the quantum dot film and the device casing, the blue edge (blue light leakage) will be generated around the monitor directly from the naked eye when the quantum dot film is not covered by the naked eye, resulting in poor user perception. good. Therefore, how to design a display device that does not generate a blue light leakage phenomenon is a study of those skilled in the art.

The novel creation provides a display device, which can reduce blue light leakage on the display panel and generate blue light leakage, thereby providing good display effects.

The novel creation provides a display device, which includes a casing, a backlight module, a display module and an optical compensation layer. The casing includes a body and a supporting structure. The supporting structure has a first surface and a second surface opposite to each other. The backlight module is disposed in the casing. The backlight module includes at least one light-emitting element, a light guide element, and a plurality of optical layers, and the optical layer is disposed on a top surface of the light guide element. The display module is arranged on the first surface of the support structure. The optical compensation layer is disposed on the second surface of the support structure and between the support structure and the backlight module, wherein the extension direction of the optical compensation layer is parallel to the extension direction of the light guide element. The orthographic projection of the optical compensation layer on the top surface of the light guide element overlaps with the orthographic projection of the support structure on the top surface of the light guide element.

In an embodiment of the invention, the optical compensation layer is a quantum dot film.

In an embodiment of the invention, the at least one light-emitting element is disposed on a side of the light-guiding element.

In an embodiment of the present invention, there is a gap between the support structure and the optical layer, and the opposite ends of the gap are completely covered by the optical compensation layer and the light guide element.

In an embodiment of the invention, the above-mentioned backlight module is an edge-lit backlight module, which has at least one light-incident side. The optical compensation layer is distributed on at least one side of the support structure, and at least one side of the support structure corresponds to at least one light incident side of the backlight module.

In an embodiment of the invention, the above backlight module is a direct type backlight module. The optical compensation layer is distributed on multiple sides of the support structure, and the sides correspond to the periphery of the backlight module.

In an embodiment of the invention, the above-mentioned shell is made by integrally forming the body and the support structure.

In an embodiment of the invention, the above-mentioned optical compensation layer is made by integrally forming one of the optical layers.

In an embodiment of the present invention, the above-mentioned body has a groove, which is suitable for inlaying a convex block of the supporting structure.

In an embodiment of the invention, the above display device further includes a plurality of adhesive layers, respectively connected between the support structure and the optical compensation layer and between the optical compensation layer and the backlight module.

Based on the above, in the display device of the present invention, the support structure of the housing is equipped with an optical compensation layer, which is located between the support structure and the backlight module and its structure is parallel to the extending direction of the light guide element, and the optical compensation layer is in the guide The orthographic projection of the top surface of the light element overlaps with the orthographic projection of the support structure on the top surface of the light guide element. Therefore, the excess blue light emitted by the backlight module in the display device can be converted into light of other colors to reduce blue light leakage on the display panel to generate blue light leakage, thereby providing a good display effect.

In order to make the above-mentioned features and advantages of the creation of the new model more obvious and understandable, the embodiments are specifically described below and described in detail in conjunction with the attached drawings.

FIG. 1 is a schematic cross-sectional view of a display device according to an embodiment of the novel creation. Please refer to Figure 1. In this embodiment, the display device 100 includes a housing 110, a backlight module 120, a display module 130, and an optical compensation layer 140. The display device 100 is, for example, a liquid crystal display (Liquid Crystal Display, LCD). In this embodiment, an active or passive liquid crystal display can be used, and different types of light sources can be selected according to needs, and the creation of the new type is not limited to this.

In this embodiment, the housing 110 may be a plastic shell or a metal shell. In detail, the housing 110 includes a body 112 and a support structure 114. The body 112 is suitable for receiving other components. The support structure 114 has a first surface S1 and a second surface S2 opposite to each other. Specifically, the first surface S1 is a surface facing the display side of the display device 100, and the second surface S2 is a surface facing the bottom of the display device 100. In this embodiment, the body 112 and the support structure 114 can be made of the same or different materials. For example, the support structure 114 can be a plastic frame, and can be manufactured together with the body 112. That is to say, the housing 110 is formed by integrally forming the body 112 and the support structure 114, but the creation of the present invention is not limited to this.

FIG. 2 is an enlarged schematic view of area A in the display device of FIG. 1. Please refer to Figure 1 and Figure 2. It is worth mentioning that the above-mentioned support structure 112 can be fixed on the housing 110 or its appearance is adapted to the shape of the internal space of the housing 110. For example, in the present embodiment, the body 112 has a groove U, which is suitable for mounting a convex block T of the support structure 114 in a detachably fixed manner, as shown in FIG. 2.

Please continue to refer to Figure 1. In this embodiment, the backlight module 120 is disposed in the housing 110. The backlight module 120 includes at least one light emitting element 122, a light guiding element 124, and a plurality of optical layers 126. The optical layers 126 are disposed on a top surface ST of the light guide element 124, and at least one light emitting element 122 is disposed on a side surface SS of the light guide element 124, that is, an edge-lit backlight module. The light-emitting element 122 is, for example, a light-emitting diode (LED) or other types of light-emitting elements. The light guide element 124 is, for example, a light guide plate. The optical layer 126 includes, for example, a quantum dot film, a brightness enhancement film, a diffusion sheet, or a reflection sheet. However, in other embodiments, at least one light-emitting element 122 may also be disposed on the side of the light guide element 124 opposite to the top surface ST (that is, the bottom surface of the light guide element 124), that is, a direct-type backlight module. this.

The display module 130 is disposed on the first surface S1 of the support structure 114. In other words, the support structure 114 is located between the display module 130 and the backlight module 120, that is, the display module 130 of the positive assembly structure. However, in other embodiments, the display module 130 may be disposed between the backlight module 120 and the support structure 114 according to the type of the housing 110. The creation of the present invention is not limited to this. The display module 130 is, for example, a liquid crystal panel, and includes a polarizing plate, a glass substrate, a color filter, an alignment film, a brightness enhancement film, or a liquid crystal element. However, in other embodiments, it may be other types of display panels, and the creation of the present invention is not limited to this.

The optical compensation layer 140 is disposed on the second surface S2 of the support structure 114 and is located between the support structure 114 and the backlight module 120 to be suitable for absorbing stray light transmitted in the internal space of the display device 100. In this embodiment, the optical compensation layer 140 is a quantum dot film (Quantum Dots Film, QD-Film). Therefore, it can be used to convert excess blue light into light of other colors, so as to reduce the situation of blue light leakage caused by blue light escape on the display panel.

In detail, the extending direction of the optical compensation layer 140 is parallel to the extending direction of the light guide element 124, and the orthographic projection of the optical compensation layer 140 on the top surface ST of the light guide element 124 and the support structure 114 on the top surface ST of the light guide element 124 The orthographic projections partially overlap. Specifically, in this embodiment, there is a gap G between the support structure 114 and the optical layer 126, and the opposite ends of the gap G are completely covered by the optical compensation layer 140 and the light guide element 124. In other words, the optical compensation layer 140 is disposed above the edge of the light guide element 124, and the light emitted by the light guide element 124 is transmitted to the optical compensation layer 140 through the gap G. In this way, the blue light leakage at the edge of the display module 130 in the display device 100 can be reduced, thereby providing a good display effect.

FIG. 3 is a schematic top view of the display device of FIG. 1. Please refer to Figure 3. In an embodiment in which the backlight module is an edge-lit backlight module, the backlight module has at least one light incident side, for example, light emitting elements 122 are disposed on opposite sides thereof, as shown in FIG. 3. The arrangement position of the optical compensation layer 140 may be distributed on at least one side of the support structure 114, and the side of the support structure 114 corresponds to the light incident side of the backlight module 120. Therefore, the phenomenon of easy leakage of blue light on the light-entering side of the backlight module can be effectively reduced.

4 is a schematic top view of a display device according to another embodiment of the new creation. Please refer to Figure 4. In the display device 100A of this embodiment, the backlight module is a direct type backlight module, and the optical compensation layer 140A is distributed on multiple sides of the support structure 114, and these sides correspond to the periphery of the backlight module 120, such as Shown in Figure 4. Therefore, the phenomenon of easy leakage of blue light on the light-entering side of the backlight module can be effectively reduced. In other words, the optical compensation layer 140A may have different distribution methods according to different types of display devices 100A, and the present invention is not limited thereto.

Please continue to refer to Figure 1. In this embodiment, the display device 100 further includes a plurality of adhesive layers 150 respectively connected between the support structure 114 and the optical compensation layer 140 and between the optical compensation layer 140 and the backlight module 120 to fix the support structure 114, The relative positions of the optical compensation layer 140 and the backlight module 120 increase the stability of the structure, but the creation of the present invention is not limited to this. In addition, in some embodiments, the optical compensation layer 140 may be directly formed by integrally forming one of the optical layers 126. That is to say, one of the optical layers 126 can be extended and arranged on the second surface S2 of the support structure 114 to be used as the optical compensation layer 140, and the creation of the present invention is not limited thereto.

In summary, in the display device of the present invention, the support structure of the housing is equipped with an optical compensation layer, which is located between the support structure and the backlight module and its structure is parallel to the extending direction of the light guide element The orthographic projection on the top surface of the light guide element overlaps with the orthographic projection of the support structure on the top surface of the light guide element. Therefore, the excess blue light emitted by the backlight module in the display device can be converted into light of other colors to reduce blue light leakage on the display panel to generate blue light leakage, thereby providing a good display effect.

Although the new creation has been disclosed as above with examples, it is not intended to limit the creation of the new creation. Anyone with ordinary knowledge in the technical field of the subject can make some changes and without departing from the spirit and scope of the new creation. Retouch, so the scope of protection of this new creation shall be subject to the scope defined in the appended patent application.

100、100A‧‧‧Display device

110‧‧‧Housing

112‧‧‧Body

114‧‧‧Support structure

120‧‧‧Backlight module

122‧‧‧Lighting element

124‧‧‧Light guide element

126‧‧‧Optical layer

130‧‧‧Display module

140, 140A‧‧‧ optical compensation layer

150‧‧‧ adhesive layer

A‧‧‧Region

G‧‧‧Gap

S1‧‧‧The first side

S2‧‧‧Second side

SS‧‧‧Side

ST‧‧‧Top

T‧‧‧Bump

U‧‧‧groove

FIG. 1 is a schematic cross-sectional view of a display device according to an embodiment of the novel creation. FIG. 2 is an enlarged schematic view of area A in the display device of FIG. 1. FIG. 3 is a schematic top view of the display device of FIG. 1. 4 is a schematic top view of a display device according to another embodiment of the new creation.

Claims (10)

A display device includes: a housing including a body and a support structure, the support structure having a first surface and a second surface opposite to each other; a backlight module disposed in the housing, the backlight module includes At least one light emitting element, a light guiding element and a plurality of optical layers, and the optical layers are arranged on a top surface of the light guiding element; a display module is arranged on the first surface of the support structure; and an optical The compensation layer is disposed on the second surface of the support structure and between the support structure and the backlight module, wherein the extension direction of the optical compensation layer is parallel to the extension direction of the light guide element, and the optical compensation layer is located at The orthographic projection of the top surface of the light guide element overlaps with the orthographic projection of the support structure on the top surface of the light guide element. The display device as described in item 1 of the patent application range, wherein the optical compensation layer is a quantum dot film. The display device according to item 1 of the patent application scope, wherein the at least one light-emitting element is disposed on a side of the light-guiding element. The display device according to item 1 of the patent application scope, wherein a gap is provided between the support structure and the optical layers, and opposite ends of the gap are completely covered by the optical compensation layer and the light guide element. The display device as described in item 1 of the patent application range, wherein the backlight module is an edge-lit backlight module having at least one light incident side, the optical compensation layer is distributed on at least one side of the support structure, and the The at least one side of the support structure corresponds to the at least one light incident side of the backlight module. The display device as described in Item 1 of the patent application range, wherein the backlight module is a direct type backlight module, the optical compensation layer is distributed on a plurality of sides of the support structure, and the sides correspond to the backlight module Around the group. The display device as described in item 1 of the patent application scope, wherein the casing is made by integrally molding the body and the support structure. The display device as described in Item 1 of the patent application range, wherein the optical compensation layer is made by integrally forming one of the optical layers. The display device as described in item 1 of the patent application scope, wherein the body has a groove, which is suitable for inlaying and combining a bump of the support structure. The display device as described in item 1 of the patent application scope further includes a plurality of adhesive layers respectively connected between the support structure and the optical compensation layer and between the optical compensation layer and the backlight module.