TWM576270U - Display module - Google Patents

Abstract

A display module including a first substrate, a polarizer plate, a sealant, a liquid crystal layer, a light module and a second substrate is provided. An inner surface of the first substrate is faced to an inner surface of the second substrate. An outer surface of the first substrate or an outer surface of the second substrate has a plurality of patterns for diffusing light. The polarizer plate is disposed between the first substrate and the second substrate. The first substrate is bonded to the second substrate by the sealant. A housing space is formed by the sealant, the first substrate and the second substrate. The liquid crystal layer is filled in the housing space. The light module is faced to a side surface of the first substrate with the plurality of patterns for diffusing light or is faced to a side surface of the second substrate with the plurality of patterns for diffusing light.

Description

Display module

This novel creation relates to a display module, and particularly to a display module with a light guide plate.

A general transmissive display module usually includes a display panel, a circuit driving the display panel, and a backlight module. The display module usually has a large size. In addition, the general reflective display module must add a layer of light guide plate when the front light source is needed, so that the display module also has a larger size.

The novel creation provides a display module that has a reduced size and can reduce manufacturing costs.

The display module created by the novel includes a first substrate, a polarizing plate, a frame glue, a liquid crystal layer, a light source module, and a second substrate. The inner surface of the first substrate and the inner surface of the second substrate face each other. The outer surface of the first substrate or the outer surface of the second substrate has a plurality of patterns of diffuse light sources. The polarizing plate is disposed between the first substrate and the second substrate. The sealant bonds the first substrate and the second substrate. The sealant, the first substrate and the second substrate form an accommodating space. The liquid crystal layer is filled in the accommodating space. The light source module is disposed facing the side surface of the first substrate having a pattern of multiple diffused light sources or facing the side surface of a second substrate having a pattern of multiple diffused light sources.

In an embodiment of the invention, the above-mentioned display module further includes a reflective layer. The outer surface of the first substrate has a pattern of multiple diffuse light sources. The reflective layer is provided on the outer surface of the first substrate.

In an embodiment of the invention, the above-mentioned display module further includes a reflective layer. The outer surface of the second substrate has a pattern of multiple diffuse light sources. The reflective layer is disposed between the first substrate and the polarizing plate.

In an embodiment of the invention, the patterns of the plurality of diffuse light sources are, for example, ultraviolet hardening glue.

In an embodiment of the invention, the shapes of the patterns of the plurality of diffuse light sources are dots, ellipses, or a combination thereof.

In an embodiment of the invention, the above display module includes two polarizers. The two polarizing plates are respectively disposed on the inner surface of the first substrate and the inner surface of the second substrate.

In an embodiment of the invention, an alignment layer is provided between the polarizing plate and the liquid crystal layer.

In an embodiment of the invention, the first substrate and the second substrate are, for example, glass substrates.

In an embodiment of the invention, the light source module is, for example, a light emitting diode.

In an embodiment of the invention, the above-mentioned first substrate is an active device array substrate.

In an embodiment of the invention, the above-mentioned second substrate is a color filter substrate.

Based on the above, the creation of the present invention allows the patterns of multiple diffused light sources to be arranged on the outer surface of the first substrate or the outer surface of the second substrate, whereby the first substrate or the second substrate can be used as a light guide plate, so no additional The light guide plate is provided to reduce the size of the display module and reduce the cost.

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.

Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the drawings. Wherever possible, the same element symbols are used to indicate the same or similar parts in the drawings and descriptions. The present invention can also be embodied in various forms, and should not be limited to the embodiments described herein. The thickness of layers and regions in the drawings will be exaggerated for clarity. The same or similar reference numbers indicate the same or similar elements, and the following paragraphs will not repeat them one by one. In addition, the directional terms mentioned in the embodiments, for example: up, down, left, right, front or back, etc., are only directions referring to the drawings. Therefore, the directional terms used are used to illustrate but not to limit the new model.

FIG. 1 is a schematic cross-sectional view of a display module according to an embodiment of the present invention.

Referring to FIG. 1, a display module 10 according to an embodiment of the present invention includes a first substrate 100, a polarizing plate 110, a frame glue 120, a liquid crystal layer 130, a light source module 140 and a second substrate 200.

In one embodiment, the first substrate 100 and the second substrate 200 are disposed facing each other. The first substrate 100 and the second substrate 200 are, for example, glass substrates. In an embodiment, the first substrate 100 is an active device array substrate, and the second substrate 200 is a color filter substrate, but the present invention is not limited thereto. For example, a plurality of active elements (not shown), a plurality of scan lines (not shown), a plurality of data lines (not shown), and a plurality of sub-pixels (not shown) are provided on the first substrate 100, each The sub-pixels can be electrically connected to the corresponding scan lines and the corresponding data lines in the first substrate 100, but the present invention is not limited to this. For example, a plurality of color filter patterns (not shown), a black matrix (not shown), and a common electrode (not shown) are provided on the second substrate 200, but the present invention is not limited to this.

In one embodiment, the polarizing plate 110 is disposed between the first substrate 100 and the second substrate 200. In detail, the polarizing plate 110 is disposed on the inner surface 100 i of the first substrate 100 or / and the inner surface 200 i of the second substrate 200. In this embodiment, the polarizing plate 110 includes two polarizing plates 110a, 110b. The polarizing plate 110a and the polarizing plate 110b are respectively disposed on the inner surface 100i of the first substrate 100 and the inner surface 200i of the second substrate 200.

In one embodiment, the sealant 120 is disposed between the first substrate 100 and the second substrate 200. From another perspective, the frame glue 120 is disposed in the non-display area (not shown) of the display module 10. The non-display area may be located on at least one side of the display area (not shown). For example, the non-display area may surround the display area, but the present invention is not limited thereto. The sealant 120 may include a plurality of sealant spacers, for example. For example, the sealant 120 is, for example, conductive particles having a specific size or a spacer having a specific shape, but the present invention is not limited thereto. The sealant 120 can bond the first substrate 100 and the second substrate 200. In this embodiment, the sealant 120, the first substrate 100, and the second substrate 200 form an accommodating space.

In one embodiment, the liquid crystal layer 130 is filled in the accommodating space formed by the sealant 120, the first substrate 100 and the second substrate 200. From another perspective, the liquid crystal layer 130 is disposed in the display area of the display module 10. The liquid crystal layer 130 includes, for example, a plurality of liquid crystal molecules. The liquid crystal molecules are preferably liquid crystal molecules that can be rotated or switched by a vertical electric field or liquid crystal molecules that can be rotated or switched by a horizontal electric field, but the present invention is not limited to this.

In one embodiment, the light source module 140 is disposed to face the side surface 100s of the first substrate 100 having a plurality of patterns of diffuse light sources 300 or to face the side surface of the second substrate 200 having a pattern of multiple diffuse light sources 300 200s set face to face. In this embodiment, the light source module 140 is disposed to face the side surface 100s of the first substrate 100 having a plurality of patterns 300 of diffused light sources. From another perspective, the light source module 140 is, for example, disposed on the light incident surface of the first substrate 100 (that is, the side surface 100s of the first substrate 100) to provide light L to the first substrate 100. In detail, the light source module 140 is disposed on one side of the light incident surface of the first substrate 100 and emits light L toward the first substrate 100, so that the light L emitted from the light source module 140 can pass through the first substrate 100 The light surface enters the first substrate 100, and then leaves the first substrate 100 through the light exit surface of the first substrate 100 (ie, the inner surface 100i of the first substrate 100). In this embodiment, since the light incident surface of the first substrate 100 and the light exit surface of the first substrate 100 are adjacent to each other, the light source module 140 is an edge-type light source module, but the present invention is not limited thereto. In one embodiment, the light source module 140 includes a light emitting diode. Since the light source module 140 in this embodiment is disposed opposite to the first substrate 100 (substrate located relatively below), the display module 10 in this embodiment may be, for example, a transmissive display module or a semi-through display Module.

In one embodiment, the display module 10 may further include a reflective layer 150. The reflective layer 150 is disposed on the outer surface 100o of the first substrate 100, for example. In this embodiment, since the reflective layer 150 is disposed on the outer surface 100o of the first substrate 100, the light L emitted by the light source module 140 can be reduced from leaking to the environment, that is, the reflective layer 150 can pass through the first The light L on the outer surface 100o of the substrate 100 is reflected back to the first substrate 100, so that the light L can leave the first substrate 100 through the light exit surface of the first substrate 100 (ie, the inner surface 100i of the first substrate 100). In an embodiment, the reflective layer 150 may be further disposed on a surface opposite to the light incident surface of the first substrate 100 (ie, the side surface 100s of the first substrate 100) to enhance the reflection of the light L back to the first substrate 100 and through The efficiency of passing through the light exit surface of the first substrate 100.

In one embodiment, the display module 10 may further include an alignment layer 160. The alignment layer 160 is disposed between the polarizing plate 110 and the liquid crystal layer 130, for example. In this embodiment, the alignment layer 160 includes two alignment layers 160a and 160b, but the present invention is not limited to this. The alignment layer 160a and the alignment layer 160b are respectively disposed between the polarizing plate 110a and the liquid crystal layer 130 and between the polarizing plate 110b and the liquid crystal layer 130. The alignment layer 160 allows the liquid crystal molecules in the liquid crystal layer 130 to have uniform directivity without the application of an electric field.

The outer surface 100o of the first substrate 100 or the outer surface 200o of the second substrate 200 may have, for example, a pattern 300 of multiple diffuse light sources. In this embodiment, the outer surface 100o of the first substrate 100 has a plurality of patterns 300 of diffuse light sources, but the present invention is not limited to this. The method of forming the patterns 300 of the plurality of diffused light sources is, for example, to perform a dot printing process on the outer surface 100o of the first substrate 100. In an embodiment, the material of the patterns 300 of the plurality of diffusion light sources includes ultraviolet hardening glue, and the shape of the patterns 300 of the plurality of diffusion light sources is a dot shape, an ellipse shape, or a combination thereof. In this embodiment, the size and density of the patterns 300 of the plurality of diffused light sources on the outer surface 100o of the first substrate 100 change with the distance from the light source module 140. For example, as the patterns 300 of the plurality of diffused light sources are farther away from the light source module 140, the size and density of the patterns 300 of the plurality of diffused light sources on the outer surface 100o of the first substrate 100 are greater. This is because the intensity of the light L becomes weaker when the patterns 300 of the plurality of diffused light sources are far away from the light source module 140, and the scattering by the patterns 300 of the plurality of diffused light sources can be increased by increasing the size and density of the patterns 300 of the multiple diffused light sources Light L to achieve the requirement of uniform display brightness. Based on this, the first substrate 100 of this embodiment may have the purpose of a light guide plate. In an embodiment, the thickness of the first substrate 100 having a plurality of patterns 300 of diffused light sources may be greater than the thickness of the second substrate 200, but the present invention is not limited thereto. In another embodiment, the thickness of the first substrate 100 having a plurality of patterns 300 of diffused light sources may be equal to the thickness of the second substrate 200.

In this embodiment, since the first substrate provided with a pattern of multiple diffuse light sources is used as the light guide plate, there is no need to additionally provide a light guide plate to reduce the size of the display module.

2 is a schematic cross-sectional view of a display module according to another embodiment of the present invention. It must be noted here that the element numbers of the embodiment of FIG. 2 and the embodiment of FIG. 1 are the same or similar to the parts to indicate the same or similar elements, and the description of some of the same technical content is omitted. For the description of the omitted parts, reference may be made to the description and effects of the foregoing embodiments and corresponding changes to the settings, and the following embodiments will not be repeated.

Please refer to FIG. 2. The main difference between the embodiment shown in FIG. 2 and the embodiment shown in FIG. 1 is: 1) The outer surface 200o of the second substrate 200 is provided with a plurality of patterns 300 of diffuse light sources, and the first substrate 100 does not have a pattern 300 of a plurality of diffused light sources; 2) the light source module 140 is disposed facing the side surface 200s of the second substrate 200 having a pattern of a plurality of diffused light sources 300; and 3) the reflective layer 150 is provided on the first Between the substrate 100 and the polarizing plate 110.

In this embodiment, the patterns 300 of the plurality of diffused light sources disposed on the outer surface 200o of the second substrate 200 can change the geometric shape of the second substrate 200 and thus destroy the total reflection, so that the light L emitted from the light source module 140 Pass through the outer surface 200o of the second substrate 200 to achieve the function of displaying a picture. The size and density of the pattern 300 of multiple diffuse light sources can be adjusted according to the requirement of uniform display brightness. Based on this, the second substrate 200 of this embodiment may be used as a light guide plate.

In this embodiment, the light source module 140 is disposed to face the side surface 200s of the second substrate 200 having a pattern 300 of a plurality of diffused light sources. From another perspective, the light source module 140 is, for example, disposed on the light incident surface of the second substrate 200 (ie, the side surface 200 s of the second substrate 200) to provide light L to the second substrate 200. In detail, the light source module 140 is disposed on the side of the light incident surface of the second substrate 200 and emits light L toward the second substrate 200, so that the light L emitted from the light source module 140 can pass through the second substrate 200. The light surface enters the second substrate 200, and then leaves the second substrate 200 through the light exit surface of the second substrate 200 (ie, the inner surface 200i of the second substrate 200). In this embodiment, since the light incident surface of the second substrate 200 and the light exit surface of the second substrate 200 are adjacent to each other, the light source module 140 is an edge-type light source module, but the present invention is not limited thereto. Since the light source module 140 in this embodiment is disposed opposite to the second substrate 200 (substrate located above) and the reflective layer 150 is disposed between the first substrate 100 and the polarizing plate 110, the display mode of this embodiment The group 20 may be, for example, a reflective display module. In an embodiment, the reflective layer 150 may be further disposed on the surface opposite to the light incident surface of the second substrate 200 (ie, the side surface 200s of the second substrate 200) to enhance the reflection of the light L back to the second substrate 200 and through Efficiency through the light exit surface of the second substrate 200.

In this embodiment, since the second substrate provided with a pattern of multiple diffused light sources is used as the light guide plate, there is no need to additionally provide a light guide plate to reduce the size of the display module.

In summary, in the creation of the present invention, a plurality of patterns of diffused light sources are arranged on the outer surface of the first substrate or the outer surface of the second substrate, so that the first substrate or the second substrate can be used as a light guide plate. An additional light guide plate is required to reduce the size and cost of the display module, and the thickness of the first substrate or the second substrate with multiple diffused light source patterns may be greater than that of the other substrate or may be equal to the thickness of the other substrate , And can choose the LED light source matching the thickness of the substrate. Furthermore, the creation of the new invention integrates the function of the light guide plate into the first substrate or the second substrate, which facilitates the assembly process of the display module created by the new invention. In addition, the display module created by the present invention can be applied to a transmissive display module, a transflective display module, or a reflective display module, which has flexibility in the manufacturing process.

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.

10.20‧‧‧Display module

100‧‧‧The first substrate

100i, 200i‧‧‧Inner surface

100o, 200o‧‧‧ outer surface

100s, 200s‧‧‧Side surface

110, 110a, 110b ‧‧‧ polarizer

120‧‧‧frame glue

130‧‧‧Liquid crystal layer

140‧‧‧light source module

150‧‧‧Reflective layer

160, 160a, 160b ‧‧‧ alignment layer

200‧‧‧Second substrate

300‧‧‧Diffusion light source pattern

L‧‧‧Light

FIG. 1 is a schematic cross-sectional view of a display module according to an embodiment of the present invention. 2 is a schematic cross-sectional view of a display module according to another embodiment of the present invention.

Claims (11)

A display module includes: a first substrate; a second substrate, wherein the inner surface of the first substrate and the inner surface of the second substrate face each other, and the outer surface of the first substrate or the first substrate The outer surface of the two substrates has a pattern of multiple diffusion light sources; a polarizing plate, which is disposed between the first substrate and the second substrate; a sealant, which bonds the first substrate and the second substrate, wherein The sealant, the first substrate and the second substrate form an accommodating space; a liquid crystal layer is filled in the accommodating space; and a light source module and the pattern having the patterns of the plurality of diffused light sources The side surface of the first substrate is disposed to face or to face the side surface of the second substrate having the patterns of the plurality of diffusion light sources. The display module according to item 1 of the patent application scope further includes a reflective layer, wherein the outer surface of the first substrate has a pattern of the plurality of diffused light sources, and the reflective layer is disposed on the first A substrate on the outer surface. The display module according to item 1 of the patent application scope further includes a reflective layer, wherein the outer surface of the second substrate has a pattern of the plurality of diffused light sources, and the reflective layer is disposed on the first Between a substrate and the polarizing plate. The display module as described in item 1 of the patent application range, wherein the patterned material of the plurality of diffused light sources includes ultraviolet hardening glue. The display module according to item 1 of the patent application scope, wherein the shapes of the patterns of the plurality of diffused light sources are dots, ellipses, or a combination thereof. The display module according to item 1 of the patent application scope includes two polarizing plates, the two polarizing plates are respectively disposed on the inner surface of the first substrate and the second substrate On the inner surface. The display module according to item 1 of the patent application scope, wherein an alignment layer is provided between the polarizing plate and the liquid crystal layer. The display module according to item 1 of the patent application scope, wherein the first substrate and the second substrate include glass substrates. The display module according to item 1 of the patent application scope, wherein the light source module includes a light emitting diode. The display module according to item 1 of the patent application scope, wherein the first substrate includes an active element array substrate. The display module according to item 1 of the patent application scope, wherein the second substrate includes a color filter substrate.