CN215770449U

CN215770449U - Counter glass projection display device

Info

Publication number: CN215770449U
Application number: CN202122420242.4U
Authority: CN
Inventors: 王飞
Original assignee: Industrial and Commercial Bank of China Ltd ICBC
Current assignee: Industrial and Commercial Bank of China Ltd ICBC
Priority date: 2021-10-08
Filing date: 2021-10-08
Publication date: 2022-02-08
Anticipated expiration: 2031-10-08

Abstract

The utility model provides a counter glass projection display device, can be used to financial equipment field or other fields. This counter glass projection display device includes: a counter frame; the glass is fixed on the counter frame, and a transparent display assembly is arranged in the glass; the projection light source can project a display picture onto the transparent display assembly; wherein, transparent display module includes: the liquid crystal layer can present a transparent state or a scattering state under the action of an electric field; the array substrate is arranged on the first side of the liquid crystal layer, and a plurality of pixel electrodes are arranged on the array substrate; and the opposite substrate is arranged on the second side of the liquid crystal layer, a common electrode is arranged on the opposite substrate, and an electric field surrounding the liquid crystal layer can be formed between the common electrode and the pixel electrode. The display device can utilize the glass of the cash counter to display pictures and information, facilitates communication between counter staff and users, and can improve business handling efficiency.

Description

Counter glass projection display device

Technical Field

The disclosure relates to the technical field of financial equipment, in particular to a counter glass projection display device.

Background

Currently, when a bank cash counter transacts business, counter staff needs to face a computer screen, so the counter staff often faces a user. In some cases, the user cannot see the content displayed on the counter computer screen, which may cause inconvenience for the user to communicate with the counter staff, resulting in a decrease in the efficiency of business handling. Therefore, a bank counter glass with a display function is needed, which is convenient for a user to view a display picture.

SUMMERY OF THE UTILITY MODEL

In view of at least one aspect of the above problems, embodiments of the present disclosure provide a counter glass projection display device to solve at least some of the problems of inconvenient communication between a user and a counter worker, resulting in reduced business handling efficiency, and the like.

According to a first aspect of the present disclosure, there is provided a counter glass projection display device comprising:

a counter frame;

the glass is fixed on the counter frame, and a transparent display assembly is arranged in the glass; and

a projection light source capable of projecting a display image onto the transparent display assembly;

wherein the transparent display assembly comprises:

the liquid crystal layer can present a transparent state or a scattering state under the action of an electric field;

the array substrate is arranged on the first side of the liquid crystal layer, and a plurality of pixel electrodes are arranged on the array substrate; and

the liquid crystal display panel comprises an opposite substrate, wherein the opposite substrate is arranged on the second side of the liquid crystal layer, a common electrode is arranged on the opposite substrate, an electric field surrounding the liquid crystal layer can be formed between the common electrode and the pixel electrode, and the first side and the second side are respectively located on two sides of the liquid crystal layer.

According to the embodiment of the present disclosure, the array substrate further includes a first substrate, and the pixel electrode is disposed on one side of the first substrate close to the liquid crystal layer.

According to the embodiment of the present disclosure, the array substrate further includes a first alignment layer located on a side of the pixel electrode away from the first substrate.

According to an embodiment of the present disclosure, the opposite substrate further includes a second substrate, and the common electrode is disposed on a side of the second substrate close to the liquid crystal layer.

According to the embodiment of the disclosure, the refractive index of the second substrate base plate is 1.45-2.

According to an embodiment of the present disclosure, the counter substrate further includes a second alignment layer on a side of the common electrode away from the second substrate.

According to an embodiment of the present disclosure, the liquid crystal layer includes polymer-stabilized liquid crystal or polymer-dispersed liquid crystal.

According to an embodiment of the present disclosure, the first side of the liquid crystal layer faces away from a user and the second side of the liquid crystal layer faces towards a user.

According to the embodiment of the disclosure, the projection light source is positioned on one side of the glass, which is far away from a user, and the included angle between the light emitting direction of the projection light source and the surface of the glass is larger than 0 degree.

According to the embodiment of the disclosure, the light emitting direction of the projection light source is parallel to the glass surface.

According to the counter glass projection display device disclosed by the embodiment of the disclosure, at least, pictures and information can be displayed by using the glass of the cash counter, so that communication between counter staff and users is facilitated, and the product display effect and the service handling efficiency can be greatly improved.

Drawings

The foregoing and other objects, features and advantages of the disclosure will be apparent from the following description of embodiments of the disclosure, which proceeds with reference to the accompanying drawings, in which:

fig. 1 schematically illustrates an overall structural view of a transparent display assembly included in a counter glass projection display device according to an embodiment of the present disclosure.

Fig. 2 is a block diagram schematically illustrating a transparent display assembly included in a counter glass projection display device according to an embodiment of the present disclosure, in which an optical path diagram of a "projected light" mode is shown.

Fig. 3 is a block diagram schematically illustrating a transparent display assembly included in a counter glass projection display device according to an embodiment of the present disclosure, in which an optical path diagram for a "side-in light" mode is shown. And

fig. 4 schematically illustrates an application scene diagram of a counter glass projection display device according to an embodiment of the disclosure.

In the figure, 100, a counter frame; 200. a transparent display assembly; 210. an array substrate; 211. a first substrate base plate; 212. a pixel electrode; 213. a first alignment layer; 220. an opposing substrate; 221. a second substrate base plate; 222. a common electrode; 223. a second alignment layer; 230. a liquid crystal layer; 300. a projection light source.

Detailed Description

Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. It should be understood that the description is illustrative only and is not intended to limit the scope of the present disclosure. In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The terms "comprises," "comprising," and the like, as used herein, specify the presence of stated features, steps, operations, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, or components.

All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art unless otherwise defined. It is noted that the terms used herein should be interpreted as having a meaning that is consistent with the context of this specification and should not be interpreted in an idealized or overly formal sense.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the utility model.

It should be noted that the counter glass projection display device of the present disclosure can be applied to the financial field (for example, used for a cash counter glass display screen in a bank), and can also be applied to any field except the financial field in a glass projection display process, and the application field of the present disclosure is not limited.

An embodiment of the present disclosure provides a counter glass projection display device, including: a counter frame 100; glass fixed on the counter frame 100, wherein a transparent display assembly 200 is arranged in the glass; and a projection light source 300, the projection light source 300 being capable of projecting a display screen onto the transparent display assembly 200; wherein the transparent display assembly 200 includes: the liquid crystal layer 230, the said liquid crystal layer 230 can present the transparent state or scattering state under the influence of electric field; an array substrate 210, wherein the array substrate 210 is disposed on a first side of the liquid crystal layer 230, and a plurality of pixel electrodes 212 are disposed on the array substrate 210; and an opposite substrate 220, wherein the opposite substrate 220 is disposed on a second side of the liquid crystal layer 230, a common electrode 222 is disposed on the opposite substrate 220, and an electric field surrounding the liquid crystal layer 230 can be formed between the common electrode 222 and the pixel electrode 212, and the first side and the second side are respectively located on two sides of the liquid crystal layer 230.

Fig. 1 schematically illustrates an overall block diagram of a transparent display assembly 200 included in a counter glass projection display device according to an embodiment of the present disclosure. Fig. 2 is a block diagram schematically illustrating a transparent display assembly 200 included in a counter glass projection display device according to an embodiment of the present disclosure, in which an optical path diagram of a "projected light" mode is shown. Fig. 3 is a block diagram schematically illustrating a transparent display assembly 200 included in a counter glass projection display device according to an embodiment of the present disclosure, in which an optical path diagram of a "side-in light" mode is shown. And fig. 4 schematically shows an application scene diagram of a counter glass projection display device according to an embodiment of the disclosure.

As shown in fig. 1 to 4, the counter glass projection display device according to the embodiment may include a counter frame 100, a glass mounted on the counter frame 100, the glass including a transparent display assembly 200 capable of displaying pictures and information, and a projection light source 300.

Specifically, in the embodiment of the present disclosure, the array substrate 210 and the opposite substrate 220 are arranged in a cell, the pixel electrode 212 on the array substrate 210 and the common electrode 222 on the opposite substrate 220 form an electric field, and the liquid crystal layer 230 is arranged in the electric field between the array substrate 210 and the opposite substrate 220. By controlling the voltages of the pixel electrode 212 and the common electrode 222, the liquid crystal layer 230 can be switched between a transparent state and a scattering state. When the liquid crystal layer 230 is in a transparent state, the light emitted from the projection light source 300 passes through the liquid crystal layer 230 and is totally reflected on an interface between the transparent display assembly 200 and an external environment, and at this time, the transparent display assembly 200 does not display a picture; when the liquid crystal layer 230 is in a scattering state, the light emitted from the projection light source 300 is scattered when passing through the liquid crystal layer 230, and the scattered light can be emitted from the transparent display assembly 200, and at this time, the transparent display assembly 200 can display images and information.

Through the structural design, the display picture can be projected to the cash counter glass, the display picture and information of the cash counter glass can be controlled, and the cash counter glass can also be controlled to be transparent glass. Through the display picture and information of the counter glass, communication between counter staff and users can be facilitated, and the product display effect and the service handling efficiency can be greatly improved.

It should be noted that the transparent display assembly 200 may be: a transparent display module based on a conventional liquid crystal display panel, or a transparent display module based on a Light Emitting Diode (LED) display panel, or a transparent display module based on an Organic Light Emitting Diode (OLED) display panel, or a transparent display module based on a scattering type display panel.

However, the conventional liquid crystal display panel includes film layers such as a polarizer, so that the light transmittance of the transparent display assembly based on the conventional liquid crystal display panel is less than 10%, so that the brightness of the transparent display assembly is low, and the light utilization rate is low; moreover, the larger size of the light emitting diode leads to larger pixel points of the transparent display component based on the light emitting diode display panel, and the light emitting diode display panel is more suitable for the transparent display component with the oversized size; in addition, the cost of the transparent display component based on the organic light emitting diode display panel is high, and the service life is difficult to guarantee; the scattering type transparent display technology adopts a field sequential light source matched with a liquid crystal with quick response (such as a polymer dispersed liquid crystal or a polymer stabilized liquid crystal), a polarizer and a color filter are not needed, the transmittance of the transparent display component based on the scattering type display panel is high (more than 80%), and the manufacturing process is similar to that of the traditional liquid crystal display panel. Therefore, in the embodiment of the present disclosure, the scattering type liquid crystal layer 230 is selected for display, and the manufacturing process of the scattering type liquid crystal layer 230 is mature and reliable, so that the manufacturing cost of the transparent display assembly 200 is low, and the stability and the service life are relatively long.

Referring to fig. 1, the array substrate 210 further includes a first substrate 211, the pixel electrode 212 is fixed on the first substrate 211, and the pixel electrode 212 is disposed on a side of the first substrate 211 close to the liquid crystal layer 230. When a plurality of pixel electrodes 212 are disposed, the plurality of pixel electrodes 212 may be distributed on the first substrate 211 in an array manner, so that an electric field generated between the pixel electrodes 212 and the common electrode 222 is more uniform, and the scattering effect of the liquid crystal layer 230 is better.

In some exemplary embodiments, the array substrate 210 further includes a first alignment layer 213 on a side of the pixel electrode 212 away from the first substrate 211. The first alignment layer 213 is used for aligning liquid crystal molecules in the liquid crystal layer 230, so that the liquid crystal molecules are arranged according to a predetermined sequence, and a phenomenon of light leakage caused by irregular arrangement of the liquid crystal molecules is avoided.

Optionally, the array substrate 210 further includes a circuit structure for driving the pixel electrode 212, and the circuit structure may refer to conventional design in the art and is not described in detail in the embodiment of the present disclosure.

With further reference to fig. 1, the opposite substrate 220 further includes a second substrate 221, the common electrode 222 is fixed on the second substrate 221, and the common electrode 222 is disposed on a side of the second substrate 221 close to the liquid crystal layer 230. The common electrode 222 is used for forming an electric field with the pixel electrode 212 to drive liquid crystal in the liquid crystal layer 230.

Note that, the embodiment of the present disclosure includes, but is not limited to, the case where the common electrode 222 is located on the opposite substrate 220. It should be understood that the common electrode 222 is disposed at a position that the electric field generated by the common electrode 222 and the pixel electrode 212 can switch the liquid crystal layer 230 into a scattering state. For example, the common electrode 222 may also be disposed on the array substrate 210.

In some exemplary embodiments, the refractive index of the second substrate base 221 ranges from 1.45 to 2. Therefore, when the liquid crystal layer 230 is in a transparent state, the light emitted from the projection light source 300 directly passes through the liquid crystal layer 230, and is totally reflected at the interface between the second substrate 221 and the external environment. Therefore, the liquid crystal layer 230 in the transparent state does not perform light emitting display.

In some exemplary embodiments, the opposite substrate 220 further includes a second alignment layer 223 on a side of the common electrode 222 away from the second substrate base 221. The second alignment layer 223 is capable of cooperating with the first alignment layer 213 for aligning liquid crystal molecules in the liquid crystal layer 230 from both sides of the liquid crystal layer 230, respectively.

In the embodiment of the present disclosure, the liquid crystal layer 230 includes polymer-stabilized liquid crystal or polymer-dispersed liquid crystal. The pixel electrode 212 and the common electrode 222 can drive the polymer stabilized liquid crystal or the polymer dispersed liquid crystal to switch between a transparent state and a scattering state.

In the embodiment of the present disclosure, the first side of the liquid crystal layer 230 faces away from a user, and the second side of the liquid crystal layer 230 faces toward the user. That is, the pixel electrode 212 is disposed at a side close to a counter staff member, and the common electrode 222 is disposed at a side close to a user. In a specific application, the projection light source 300 is disposed at a side close to a counter staff, and light emitted from the projection light source 300 can be incident into the liquid crystal layer 230 from a side surface or a surface of the liquid crystal layer 230. That is, the light incident mode of the counter glass projection display device of the embodiment of the present disclosure may be "side light incident" or "projection light incident".

For example, referring to fig. 2, the projection light source 300 is located on a side of the counter glass facing away from the user, and the light emitting direction of the projection light source 300 forms an angle greater than 0 ° with the surface of the counter glass (i.e., the surface of the liquid crystal layer 230). In the embodiment of the present disclosure, the projection light source 300 is disposed at one side of the transparent display module 200, and the light emitting direction of the projection light source 300 forms a certain angle with the surface of the liquid crystal layer 230. Namely, the "projection light in" mode is adopted. The light emitted from the projection light source 300 is incident from one side of the transparent display module 200, and when the light emitted from the projection light source 300 encounters the liquid crystal layer 230 in a scattering state, the light is scattered, and the scattered light can be emitted from the other side of the liquid crystal layer 230, so that a user can see a display image.

Also for example, referring to fig. 3, the light emitting direction of the projection light source 300 is parallel to the counter glass surface. In the embodiment of the present disclosure, the projection light source 300 is disposed at a side of the liquid crystal layer 230 of the transparent display assembly 200. I.e. in a "side-lit" manner. The light emitted from the projection light source 300 enters the transparent display assembly 200, and is totally reflected at the interface between the transparent display assembly 200 and the external environment, and is scattered when encountering the liquid crystal layer 230 in a scattering state, and the scattered light can be emitted from the transparent display assembly 200, so as to perform display.

When the counter glass projection display device of the embodiment of the disclosure is applied to a bank, the specific use principle is as follows: the liquid crystal layer 230 is switched between a transparent state and a scattering state by controlling an electric field between the pixel electrode 212 and the common electrode 222. When the liquid crystal layer 230 is in a transparent state, light emitted from the projection light source 300 directly passes through the liquid crystal layer 230; when the liquid crystal layer 230 is in a scattering state, light emitted from the projection light source 300 is scattered after passing through the liquid crystal layer 230, and the scattered light can be emitted from the transparent display assembly 200, so that a picture can be displayed on one side of the counter glass.

The counter glass projection display device in the embodiment of the disclosure has a transparent display function, can utilize the glass of a cash counter to display pictures and information, is convenient for communication between counter staff and users, greatly improves business handling efficiency, and can be used for publicizing and displaying bank products. Meanwhile, the counter glass projection display device can be controlled not to display the picture, and the counter glass is used as common transparent glass.

Those skilled in the art will appreciate that various combinations and/or combinations of features recited in the various embodiments and/or claims of the present disclosure can be made, even if such combinations or combinations are not expressly recited in the present disclosure. In particular, various combinations and/or combinations of the features recited in the various embodiments and/or claims of the present disclosure may be made without departing from the spirit or teaching of the present disclosure. All such combinations and/or associations are within the scope of the present disclosure.

The embodiments of the present disclosure have been described above. However, these examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure. Although the embodiments are described separately above, this does not mean that the measures in the embodiments cannot be used in advantageous combination. The scope of the disclosure is defined by the appended claims and equivalents thereof. Various alternatives and modifications can be devised by those skilled in the art without departing from the scope of the present disclosure, and such alternatives and modifications are intended to be within the scope of the present disclosure.

Claims

1. A counter glass projection display device, comprising:

a counter frame;

wherein the transparent display assembly comprises:

2. The counter glass projection display device of claim 1, wherein the array substrate further comprises a first substrate, and the pixel electrode is disposed on a side of the first substrate adjacent to the liquid crystal layer.

3. The counter glass projection display device of claim 2, wherein the array substrate further comprises a first alignment layer on a side of the pixel electrode remote from the first substrate.

4. The counter glass projection display device of claim 1, wherein the counter substrate further comprises a second substrate, the common electrode being disposed on a side of the second substrate adjacent to the liquid crystal layer.

5. The counter glass projection display device of claim 4, wherein the second substrate base plate has a refractive index of 1.45 to 2.

6. The counter glass projection display device of claim 4, wherein the counter substrate further comprises a second alignment layer on a side of the common electrode remote from the second substrate.

7. The counter glass projection display device of claim 1, wherein the liquid crystal layer comprises a polymer stabilized liquid crystal or a polymer dispersed liquid crystal.

8. The counter glass projection display device of any of claims 1-7, wherein the first side of the liquid crystal layer faces away from a user and the second side of the liquid crystal layer faces toward a user.

9. The counter glass projection display device of claim 8, wherein the projection light source is positioned on a side of the glass facing away from a user, and an angle between a light emitting direction of the projection light source and a surface of the glass is greater than 0 °.

10. The counter glass projection display device of claim 8, wherein the light exit direction of the projection light source is parallel to the glass surface.