Teaching and assisting multifunctional display screen for middle and primary schools

Abstract

The utility model belongs to the field of liquid crystal display, and particularly discloses a middle and primary school teaching-aid multifunctional display screen which comprises a touch control layer, a structure protection layer, a transparent display body layer and a task conversion layer. The task conversion layer comprises an optical adjustment layer, and an organic transparent conductive coating and a transparent insulating layer which are symmetrically distributed on the two sides of the optical adjustment layer in sequence in the display direction; and the optical adjusting layer can be converted from a fuzzy state to a clear transparent state under the action of current after the transparent conductive coating is electrified. The display screen can realize different teaching scenes, on one hand, conventional teaching can be carried out by using the display screen, and on the other hand, under the condition that the task conversion layer is powered off, character images can be mapped by means of the'curtain 'effect of the task conversion layer and under the irradiation of light at the back. The virtual background on the display body and the manual shadow puppet figure behind the task conversion layer are matched in real time, the unique visual effect of combining the traditional shadow puppet art and the modern teaching technology is presented, and the application prospect is wide.

Description

Technical Field

[0001] This utility model belongs to the field of liquid crystal display, and in particular relates to a multi-functional display screen for primary and secondary school teaching aids. Background Technology

[0002] With the development of communication technology in my country, it is common to use multimedia equipment in primary and secondary school classrooms for teaching. However, current multimedia equipment for teaching generally suffers from problems such as small display size, low resolution, and poor interactivity with learners.

[0003] Furthermore, with the development of quality education in my country, traditional curriculum-based subjects can no longer meet current teaching requirements. Various interest-based and entertainment-assisted educational methods are emerging, but these are usually developed separately, requiring learners to frequently change equipment or venues for different teaching tasks, which is extremely inconvenient. Currently, there is no precedent for integrating multimedia teaching equipment with entertainment-assisted educational equipment. Moreover, with the rise of modern technological civilization, the inheritance of my country's traditional intangible cultural heritage also needs to be revitalized, such as shadow puppetry. However, due to the shortage of performance venues and corresponding display equipment, it is difficult to frequently carry out such integrated teaching and entertainment activities in primary and secondary schools. Students can only watch recorded videos on computers instead of live performances, but creating a live performance setting is not as convenient as computer-designed scenarios.

[0004] Traditional shadow puppet performances typically consist of a screen, puppet figures, and supplementary lighting. Now, we've incorporated a specially structured task conversion layer on the back of a backless, transparent LCD screen. This layer functions as the "screen" in traditional shadow puppetry, with the puppet figures projected onto the screen by the supplementary lighting behind it. Simultaneously, the transparent LCD screen displays the digital background of the shadow puppet performance. This fusion of the puppet figures and the digital background on the transparent screen creates a unique visual effect that combines traditional shadow puppetry with modern digital technology. Utility Model Content

[0005] To address the aforementioned technical problems and the shortcomings of existing displays, this utility model provides a shadow puppet display screen suitable for primary and secondary school teaching. It can not only meet the needs of regular syllabus teaching but also be used for auxiliary teaching tasks, such as recess activities, interest group activities, hand shadow performances, shadow puppet shows, etc., with a wide range of application scenarios.

[0006] According to the first aspect of the present invention, the present invention first provides a multi-functional teaching aid display screen, which includes, in the viewing direction, a touch layer, a structural protection layer, a transparent display body layer and a task conversion layer, wherein the task conversion layer includes an optical adjustment layer and an organic transparent conductive coating and a transparent insulating layer that are symmetrically distributed on both sides of the optical adjustment layer in the display direction.

[0007] The organic transparent conductive coating is connected to an external first power source, and one end of the transparent display body layer is connected to an external second power source, while the other end is connected to an external computer.

[0008] According to one aspect of the present invention, the optical adjustment layer is an organic polymer matrix layer randomly filled with inorganic liquid crystal particles.

[0009] According to one aspect of the present invention, the polymer matrix layer is one or more selected from polymethyl methacrylate, polybutyl methacrylate, polystyrene, and siloxane resin.

[0010] According to one aspect of the present invention, the inorganic liquid crystal particles are one or more of silicon dioxide particles, titanium dioxide particles, calcium carbonate particles, and barium sulfate particles.

[0011] According to one aspect of the present invention, the transparent insulating layer is a transparent organic polymer, wherein the transparent organic polymer is PET or acrylic.

[0012] According to one aspect of the present invention, the structural protective layer is tempered glass.

[0013] According to one aspect of the present invention, the transparent display body layer is a liquid crystal display screen, the size of the liquid crystal display screen is not less than 110 inches, the liquid crystal display screen is evenly divided into 4 sub-display screens, and the 4 sub-display screens are connected to the computer after being combined into one interface through the 4 interfaces in the HDIM splicing device.

[0014] Compared with the prior art, the shadow puppet display screen of this utility model has the following advantages:

[0015] 1. The display screen of this utility model can realize different teaching scenarios. On the one hand, it can be used for regular teaching. At the same time, when the task conversion layer is powered off, it can also use the "screen" function of the task conversion layer to project the image of the characters under the illumination of the light behind it. The virtual background on the display screen and the handmade shadow puppet characters behind the task conversion layer are coordinated in real time, presenting a unique visual effect that combines traditional shadow puppet art with modern teaching technology. It has broad application prospects.

[0016] 2. The task conversion layer of this utility model can function as a "curtain" in traditional shadow puppetry when the power is off. When the organic transparent conductive coating is energized, the disordered inorganic particles in the matrix of the optical adjustment layer in the middle will undergo directional migration, thereby changing the optical adjustment layer from a blurry state to a transparent state. The preferred optical adjustment layer has good compatibility between organic and inorganic components and a faster state conversion speed. The time from blurry to clear and transparent can be controlled within 0.1 seconds. Therefore, after being powered on, the performers on the back of the transparent display body layer can be quickly and synchronously displayed, which can meet the needs of different batches of performers to take their final bow quickly and increase the fun of the performance.

[0017] 3. The display screen of this utility model is larger and more suitable for teaching outline tasks. Furthermore, after being divided into 4 sub-display screens, its display is clearer and more user-friendly for nearsighted people and dense classrooms. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the multifunctional display screen of this utility model.

[0019] Figure 2 This is a schematic diagram of the sub-display screen structure of the transparent display body layer of this utility model.

[0020] Figure 3 This is a schematic diagram of the task conversion layer of this utility model.

[0021] Reference numerals: 1-Touch layer, 2-Structural protection layer, 3-Transparent display body layer, 4-Task conversion layer, 5-HDIM splicer, 6-Sub-display screen, 7-Transparent PET layer, 8-Organic transparent conductive coating, 9-Polymethyl methacrylate layer, 10-Silica particles. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Furthermore, the technical features involved in the various embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] Example

[0024] like Figure 1As shown, this embodiment provides a dual-task educational display screen. The dual-task educational display screen includes, in the viewing direction, a touch layer 1, tempered glass 2, a transparent display body layer 3, and a task conversion layer 4. The task conversion layer 4 includes an optical adjustment layer and organic transparent conductive coating 8 and a transparent PET layer 7 symmetrically distributed on both sides of the optical adjustment layer in the display direction. The optical adjustment layer is a polymethyl methacrylate layer 9 randomly filled with silica particles 10. Figure 3 As shown, the optical adjustment layer can transform from a blurred state to a clear and transparent state under the action of current after the organic transparent conductive coating is energized. The organic transparent conductive coating 8 is connected to an external first power source. One end of the transparent display body layer 2 is connected to an external second power source, and the other end is connected to an external computer. The transparent display body layer 2 is a liquid crystal display screen with a size of 134 inches. The liquid crystal display screen is evenly divided into four sub-display screens 6. The four sub-display screens are connected to the computer after being combined into one interface through four interfaces in the HDIM splicer. Figure 2 As shown. The usage process of this embodiment is as follows:

[0025] When performing normal syllabus teaching tasks, keep the first power supply off. At this time, the task conversion layer 4 appears blurry. Turn on the second power supply and the external computer. Click to play the pre-prepared teaching video on the external computer, and the main screen displays the teaching content.

[0026] When performing teaching and auxiliary tasks such as hand shadow or shadow puppetry, simply turn on the light source behind the task conversion layer. The performer or robotic arm is positioned between the light source and the "screen," allowing the shadow puppet figures to be pressed tightly against the surface of the task conversion layer, and the puppet props to be manipulated for continuous performance.

[0027] In this embodiment, the task conversion layer not only functions as a "curtain" in traditional shadow puppetry when the power is off, but also, when the organic transparent conductive coating is energized, the disordered inorganic particles in the matrix of the optical adjustment layer located in the middle undergo directional migration, causing the optical adjustment layer to change from a blurred state to a transparent state. The preferred optical adjustment layer has good compatibility between organic and inorganic components and a faster state conversion speed. The time from blurry to clear and transparent can be controlled within 0.1 seconds. Therefore, after being powered on, the performers on the back of the transparent display body layer can be quickly and synchronously displayed, which can meet the needs of different batches of performers to quickly take their final bow, increasing the fun of the performance.

[0028] The technical solution of this utility model creatively combines conventional teaching and tutoring work with traditional shadow puppet performance work. It can not only realize conventional teaching and tutoring work, but also realize shadow puppet performance work using the display screen. Moreover, the display screen can create a background for the traditional shadow puppet performance during the performance, increasing the richness and aesthetics of the picture. Finally, it can realize the performers' quick curtain call, further increasing the fun.

[0029] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-functional display screen for elementary and secondary school teaching aids, characterized by, The educational auxiliary multi-functional display screen includes, in the viewing direction, a touch layer, a structural protection layer, a transparent display body layer, and a task conversion layer. The task conversion layer includes an optical adjustment layer and an organic transparent conductive coating and a transparent insulating layer that are symmetrically distributed on both sides of the optical adjustment layer in the display direction. The organic transparent conductive coating is connected to an external first power source, and one end of the transparent display body layer is connected to an external second power source, while the other end is connected to an external computer. The optical adjustment layer is an organic polymer matrix layer randomly filled with inorganic liquid crystal particles. The optical adjustment layer can change from a blurred state to a transparent state under the action of current after the transparent conductive coating is energized.

2. The multi-functional display screen for teaching aids in primary and secondary schools according to claim 1, characterized in that, The transparent insulating layer is a transparent organic polymer, which is PET or acrylic.

3. The multi-functional display screen for teaching aids in primary and secondary schools according to claim 1, characterized in that, The protective layer of the structure is tempered glass.

4. The multi-functional display screen for teaching aids in primary and secondary schools according to claim 1, characterized in that, The transparent display body layer is a liquid crystal display screen with a size of not less than 110 inches. The liquid crystal display screen is evenly divided into 4 sub-display screens, and the 4 sub-display screens are connected to the computer after being combined into one interface through the 4 interfaces in the HDIM splicing device.

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