阅读说明：本技术 一种基于碳基功能电路的交互显示器及其制作方法 (Interactive display based on carbon-based functional circuit and manufacturing method thereof ) 是由 梁学磊 于 2020-04-11 设计创作，主要内容包括：本发明公开了一种基于碳基功能电路的交互显示器,包括显示基板和位于所述显示基板上的多个像素单元,在所述多个像素单元之间的空档区域或像素单元下层设置有碳基功能电路。同时还提出该交互显示器的制作方法,首先在显示基板上形成包括多个像素单元的像素阵列,然后在像素阵列上形成碳纳米材料薄膜,并在像素阵列的空档区中制作以碳纳米材料薄膜作为沟道层的碳基功能电路。本发明提出的基于碳基功能电路的交互显示器可实现像素分辨率级别的非接触式触控,还可以实现显示器主动对外界进行探测,主动反馈,进而控制显示效果。(The invention discloses an interactive display based on a carbon-based functional circuit, which comprises a display substrate and a plurality of pixel units positioned on the display substrate, wherein the carbon-based functional circuit is arranged in a gap area among the pixel units or at the lower layer of the pixel units. The manufacturing method of the interactive display is also provided, and comprises the steps of firstly forming a pixel array comprising a plurality of pixel units on a display substrate, then forming a carbon nano-material film on the pixel array, and manufacturing a carbon-based functional circuit taking the carbon nano-material film as a channel layer in a neutral area of the pixel array. The interactive display based on the carbon-based functional circuit can realize non-contact touch control at the pixel resolution level, and can also realize active detection and active feedback of the display to the outside so as to control the display effect.)

1. An interactive display based on carbon-based functional circuitry, comprising a display substrate (1) and a plurality of pixel cells (2) located on the display substrate (1), characterized in that:

and a carbon-based functional circuit (3) is arranged in the region of the gap between the pixel units (2).

2. The carbon-based functional circuit-based interactive display of claim 1, wherein: and a carbon-based functional circuit (3) is arranged between the display substrate (1) and the pixel unit (2).

3. An interactive display based on carbon-based functional circuitry according to claim 1 or 2, characterized in that: the carbon-based functional circuit (3) is selected from one or more of signal transmitting/outputting, signal amplifying, signal processing, signal transmission, signal detecting/sensing and signal feedback circuits, and is preferably a signal transmitting circuit, an infrared signal transmitting and detecting circuit or a temperature and humidity sensor.

4. An interactive display based on carbon-based functional circuitry according to claim 1 or 2, characterized in that: wherein the carbon-based functional circuit (3) comprises a transistor which adopts a carbon nano material as a channel material.

5. The carbon-based functional circuit-based interactive display of claim 4, wherein: the carbon nano material comprises carbon nano tubes, carbon nano wires, graphene, fullerene, carbon nano fibers, carbon nano spheres and the like, wherein the carbon nano tubes comprise single-walled carbon nano tubes and multi-walled carbon nano tubes.

6. The carbon-based functional circuit-based interactive display of claim 1, wherein: the pixel unit (2) comprises a TFT switch (201) and an electro-optical unit (202), wherein the TFT switch (201) is a silicon-based TFT, an oxide TFT or a carbon-based TFT, and the electro-optical unit (202) is an LCD, an OLED, a QLED, a micro-LED or a mini-LED.

7. The carbon-based functional circuit-based interactive display of claim 1, wherein: the display substrate is an inorganic substrate such as glass or a flexible organic substrate such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN).

8. A method of making an interactive display based on carbon-based functional circuitry according to claims 1-7, comprising the steps of:

step A: providing a display substrate (1) on which a pixel array comprising a plurality of pixel units is formed;

and B: forming a carbon nanomaterial film (301) on the pixel array;

and C: and manufacturing a carbon-based functional circuit (3) with a carbon nano material film (301) as a channel layer in the blank region of the pixel array.

9. The method of claim 8, wherein the method comprises: the manufacturing method further comprises the steps of forming a carbon nano material film (301) on the display substrate, then manufacturing and forming the carbon-based functional circuit, and then forming the pixel array on the carbon-based functional circuit.

10. A method of making an interactive display based on carbon-based functional circuitry according to claim 8 or 9, wherein: the carbon nanomaterial film (301) is formed by spraying, dipping, coating, or transferring a carbon nanomaterial solution.

Technical Field

The invention belongs to the technical field of display, and particularly relates to an interactive display based on a carbon-based functional circuit and a manufacturing method thereof.

Background

The existing display can be carried with other functions besides the display function, and realizes the real-time control of external control signals on partial pixels of a screen to a certain extent. For example, "touch display" is to control the display state and the image by the external contact on the screen. At present, the touch display is widely applied to display terminals in many occasions, but the touch display screen used in public places usually has sanitary problems of pathogen transmission, cross infection and the like caused by a multi-user touch panel.

In addition, the existing display can not realize signal interaction between different areas in the screen and can not simultaneously and respectively regulate and control the display effect of each area. Therefore, the existing touch display generally has the problems that the precision (such as spatial resolution) of the screen control by the external signal is not high enough, and the response speed is not fast enough. The current display, even touch-control display screen, all is passive form feedback control, just is to control the screen display effect through external touch-control signal, still can't realize that the display is initiatively surveyed the external world, and initiative feedback, and then control display effect.

In addition, for an ultra-large screen, when display signals are transmitted from one side of the pixel array area to the other side, or from both sides to the middle at the same time, due to signal delay, coordination is needed between the display signals in different areas. Although a certain adjustment can be realized at present, it is difficult to realize real-time monitoring and active coordination control of display signals of various regions (even each pixel).

In the active light emitting display structures such as OLED, micro-LED and the like, a pixel array area has a certain neutral space except a pixel Light Emitting Device (LED) and a pixel array TFT device, particularly the area of the neutral area of a large-screen display is larger, and the neutral area can be fully utilized to increase the functions of display products. At present, no case of realizing function expansion of display products by using a neutral area on a display panel is found in the prior art.

The carbon nano material is an excellent transistor preparation material, an excellent infrared emission and detection material and also has excellent light transmittance. Can be used for preparing transparent, flexible and high-performance transistors and infrared emission and detection devices. And the carbon nano material device can be prepared by a low-temperature process, and the preparation process can not damage the performance of a display driving TFT circuit and a light-emitting element on a display panel. At present, although there are reports of using carbon nanotubes to prepare transistors or integrated displays, there is no case of using carbon nanotube devices to realize non-contact touch or active detection feedback displays.

Disclosure of Invention

In view of the above problems in the prior art, the present invention provides a novel multifunctional interactive display and a method for manufacturing the same. The invention aims to solve the technical problem of realizing interactive response between pixels in different areas of a flat panel display and between the pixels and external signals by arranging a carbon-based functional circuit in a pixel unit.

Specifically, the technical scheme adopted by the invention is as follows:

the invention provides an interactive display based on a carbon-based functional circuit, which comprises a display substrate and a plurality of pixel units positioned on the display substrate, wherein the carbon-based functional circuit is arranged in an empty area among the pixel units.

Further, a carbon-based functional circuit is disposed between the display substrate and the pixel unit.

Further, the carbon-based functional circuit is selected from one or more of signal emission/output, signal amplification, signal processing, signal transmission, signal detection/sensing and signal feedback circuits, and is preferably a signal emission circuit, an infrared signal emission and detection circuit or a temperature and humidity sensor.

Further, the carbon-based functional circuit (3) comprises a transistor which adopts a carbon nano material as a channel material.

Further, the carbon nanomaterial includes carbon nanotubes, carbon nanowires, graphene, fullerene, carbon nanofibers, carbon nanospheres, and the like, wherein the carbon nanotubes include single-walled and multi-walled carbon nanotubes.

Further, the pixel unit comprises a TFT switch and an electro-optical unit, wherein the TFT switch is a silicon-based TFT, an oxide TFT or a carbon-based TFT, and the electro-optical unit is an LCD, an OLED, a QLED, a micro-LED or a mini-LED.

The display substrate is an inorganic substrate such as glass or a flexible organic substrate such as polyethylene terephthalate (PET) or polyethylene naphthalate (PEN).

Another aspect of the present invention provides a method for manufacturing the above interactive display based on carbon-based functional circuits, which specifically comprises the following steps:

step A: providing a display substrate, and forming a pixel array comprising a plurality of pixel units on the display substrate;

and B: forming a carbon nanomaterial film on the pixel array;

and C: and manufacturing a carbon-based functional circuit with the carbon nano material film as a channel layer in the blank area of the pixel array.

Further, the manufacturing method also comprises the step A-1 of firstly forming a carbon nano material film on the display substrate, then manufacturing and forming a carbon-based functional circuit, and then forming the pixel array on the carbon-based functional circuit.

Further, the carbon nanomaterial film is formed by spraying, dipping, coating, or transferring a carbon nanomaterial solution.

The invention can realize high-resolution non-contact touch display on one hand. For example, an external infrared signal can be detected by the carbon-based functional circuit and transmitted to the backboard control circuit to realize the control of image display. Such non-contact control can avoid pollution, pathogen transmission, cross infection and the like caused by touching a multi-person touch panel usually. Meanwhile, the carbon-based functional circuit can be prepared into the neutral area of each pixel, so that non-contact touch control at the resolution level of the pixel can be realized.

On the other hand, the carbon-based functional circuit arranged in the pixel unit gap can monitor the display state of the pixel or the pixel in the nearby area (such as the TFT current of the pixel, or the current or light intensity of the electro-optical unit and other signals) in real time, and perform operations such as feedback adjustment control on abnormal signals, so that the improvement of the whole display effect is realized.

The invention can also realize active detection and feedback control of image signals. If the carbon-based infrared signal transmitting circuit integrated on the back plate transmits infrared rays and detects infrared signals reflected back from the outside, the detection of the state, the spatial position, the speed and other information of the display panel can be realized, and feedback response is made (for example, the product is protected by active shutdown and the like in the falling process).

Drawings

The above and other objects, features and advantages of the present invention will become more apparent by describing a carbon-based functional circuit based interactive display and a method of fabricating the same with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a carbon-based functional circuit-based interactive display structure in the region of the spaces between pixel cells. Where 2 is a pixel unit including the TFT array switch 201 and the electro-optical unit 202, and 3 is a carbon-based functional circuit.

FIG. 2 is a schematic diagram of an interactive display based on carbon-based functional circuitry underlying a pixel cell. Wherein, 1 is a display substrate, 2 is a pixel unit including a TFT array switch 201 and an electro-optical unit 202, and 3 is a carbon-based functional circuit.

FIG. 3 is a schematic diagram of a manufacturing process of an interactive display based on carbon-based functional circuits.

Fig. 4 is a schematic structural diagram of a display substrate 1 with carbon-based functional circuits 3 after pixel units 2 are fabricated, wherein the carbon-based functional circuits 3 are located in the gap regions between the pixel units 2.

Fig. 5 is a schematic structural diagram of a display substrate 1 after a pixel unit array is formed thereon.

Fig. 6 is a schematic structural view of the carbon-based functional circuit 3 formed by the carbon nanomaterial film 301.

Fig. 7 is a schematic structural diagram of a pixel unit 2 fabricated on a display substrate 1 having a carbon-based functional circuit 3, where the carbon-based functional circuit 3 is located at a lower layer of the pixel unit 2.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Like elements in the drawings are represented by like reference numerals, and parts of the drawings are not drawn to scale. In addition, certain well known components may not be shown. For simplicity, the semiconductor structure obtained after several steps can be described in one figure.

It will be understood that when a layer or region is referred to as being "on" or "over" another layer or region in describing the structure of the device, it can be directly on the other layer or region or intervening layers or regions may also be present. And, if the device is turned over, that layer, region, or regions would be "under" or "beneath" another layer, region, or regions.

If for the purpose of describing the situation directly above another layer, another region, the expression "a directly above B" or "a above and adjacent to B" will be used herein. In the present application, "a is directly in B" means that a is in B and a and B are directly adjacent, rather than a being in a doped region formed in B.

The invention provides an interactive display based on a carbon-based functional circuit, which comprises a display substrate 1, a pixel unit 2 and a carbon-based functional circuit 3. The carbon-based functional circuit 3 is one or more of a signal transmitting/outputting circuit, a signal amplifying circuit, a signal processing circuit, a signal transmitting circuit, a signal detecting/sensing circuit and a signal feedback circuit, and is preferably a signal transmitting circuit, an infrared signal transmitting and detecting circuit or a temperature and humidity sensor. The carbon-based functional circuit 3 performs real-time monitoring and feedback control on the display state of the pixel unit 2. The carbon-based functional circuit 3 may be located in the gap region between the pixel units 2, as shown in fig. 1, or in the lower layer of the pixel unit 2, as shown in fig. 2, or the carbon-based functional circuit 3 may be disposed behind the lower layer of the pixel unit 2, and the carbon-based functional circuit may be disposed in the gap region of the pixel unit 2. The display substrate is an inorganic substrate such as glass or a flexible organic substrate such as polyethylene terephthalate (PET), polyethylene naphthalate (PEN). The carbon-based functional circuit 3 comprises a transistor which adopts a carbon-based film as a channel material, a carbon nano tube, a carbon nano wire, graphene, fullerene, carbon nano fiber, a carbon nano sphere and the like, wherein the carbon nano tube is preferably a single-walled carbon nano tube or a multi-walled carbon nano tube. The pixel unit comprises a TFT switch and an electro-optical unit, the TFT switch can be a silicon-based TFT, an oxide TFT or a carbon-based TFT, and the electro-optical unit is an LCD, an OLED, a QLED, a micro-LED or a mini-LED. Various specific embodiments are described in detail below.