CN202120573U - Omnidirectional normal vision space imaging system based on organic light-emitting diode - Google Patents

Abstract

The utility model relates to a full-angle naked-view space imaging system based on organic light-emitting diodes. It includes an OLED array, an FPGA embedded system and a computer. There are two groups of OLED arrays back to back to form a double-sided display. , fixedly install a strong magnet outside the turntable close to the Hall device and the running track; the DC power supply provides working power for two groups of OLED arrays and the FPGA embedded system, and the two groups of OLED arrays are connected to the computer through the FPGA embedded system, and the Hall device is directly connected computer. The utility model has the advantages of low cost, easy realization, reliable operation and high stability.

Description

Full-angle naked-view space imaging system based on organic light-emitting diodes

technical field

The utility model relates to a full-angle naked-view space imaging system based on OLED (Organic Light-Emitting Diode, organic light-emitting diode), which belongs to the technical field of three-dimensional image display. the

Background technique

The objective world is a three-dimensional space with three dimensions. Since the birth of display devices, in order to truly reproduce the objective world, people have never stopped researching on stereoscopic display technology. The so-called three-dimensional display refers to the ability to display the image depth (third dimension) effect, just like we see the real world, it is three-dimensional. Stereoscopic display technology can be divided into naked-eye stereoscopic display technology and non-naked-eye stereoscopic display technology according to whether to add stereoscopic glasses. the

The current naked-view stereoscopic display technology mainly includes three types: holographic three-dimensional display, autostereoscopic display and volumetric display technology. Holographic three-dimensional display tries to reconstruct the light wave of the object that the eyes can get, so that the realistic image of the object can be seen even if the object is not in the original place. The biggest problem at present is that the reproduction of three-dimensional light field information is relatively complicated, which is not convenient for large-scale application . Autostereoscopic display uses materials such as cylindrical lenses and microlenses to decompose the original three-dimensional image into multiple interrelated two-dimensional images (or multiple images), and form stereoscopic vision through binocular parallax. The defect of this method is the contradiction between the viewing area and the resolution. The larger the resolution, the wider the viewing area. However, the resolution cannot be greatly improved at present, which limits the expansion of the viewing area and causes eye discomfort during observation. . For multiple film sources, it will inevitably bring about the complexity of the system structure, and it is difficult to achieve vertical parallax. The third is the volumetric display technology, which excites the medium in the display body in an appropriate way to generate visible light radiation to form volume pixels, and these volume pixels scattered in three-dimensional space constitute a stereoscopic image. Volumetric 3D display images exist in the real 3D space, showing a 3D picture closest to the real object, in line with people's real feelings of observing the world scene, satisfying all physiological and psychological depth hints, and allowing multiple people, multiple angles, and naked eyes to watch the scene at the same time , without any auxiliary glasses, compared with the other two naked-view stereoscopic display technologies, it is closer to the goal of the ultimate display. the

Although volumetric display technology can be used to model and reproduce three-dimensional objects, most of the three-dimensional scenes are still presented in the form of two-dimensional scanning display, which can effectively reduce the difficulty of reconstructing three-dimensional objects. In China, East China Normal University, Zhejiang University and other units have done a lot of research work on volume 3D scanning display, and developed a rotating volume scanning 3D display based on LED (Light Emitting Diode, light emitting diode) array. Although the above-mentioned solutions all realize volumetric three-dimensional display, the true three-dimensional display system based on the two-dimensional LED rotating screen uses LED array as the display unit, and its physical resolution is affected by the size of the LED. Currently, the maximum resolution is only 128×64; The LED array, control circuit, power supply and other components are heavy and cannot meet the conditions of high-speed rotation in large-volume applications. Due to the single-display array method, the screen flickers when rotating at low speed; the LED module has a large thickness, forming a bulk space Visual blind spots cause disadvantages such as difficulty in commercial popularization. the

Utility model content

In view of the above-mentioned problems and deficiencies in the prior art, the purpose of this utility model is to provide a full-angle naked-view space imaging system based on organic light-emitting diodes. The system is equipped with two sets of OLED arrays, which can improve the resolution of the display space, reduce the motor speed and noise, and constitute a complete full-angle naked-view imaging machine. the

The utility model adopts the following technical solutions to realize:

A full-angle naked-view space imaging system based on organic light-emitting diodes, including an OLED array, an FPGA embedded system and a computer, is characterized in that:

a. There are two groups of OLED arrays mounted back to back on a metal sheet to form a double-sided display imaging carrier, the double-sided display imaging carrier is vertically installed on a turntable, and is located on the center line of the turntable;

b. a DC stabilized power supply, the FPGA embedded system and a Hall device are installed on the turntable, and a strong magnet is fixedly installed outside the turntable, and the strong magnet is close to the running track of the Hall device;

c. The DC power supply provides working power for two groups of OLED arrays and the FPGA embedded system, the two groups of OLED arrays are connected to the computer via the FPGA embedded system, and the Hall device is directly connected to the computer.

The above-mentioned OLED array adopts high-brightness active-driven OLED units, the brightness reaches 10000cd/m2, and the panoramic viewing angle is 170 degrees.

The turntable is driven by a motor connection to rotate at a high speed of 8 to 10 revolutions per second.

The above two groups of OLED arrays are connected with the FPGA embedded system through data lines.

The above-mentioned double-sided display imaging carrier has a resolution of 132×64, a brightness of 10,000 cd/m2, and a panoramic viewing angle of 170 degrees. Sixteen OLED display modules form a group of OLED arrays. the

A motor is connected to the turntable and drives the turntable to rotate at a high speed of 8 to 10 revolutions per second. the

The above-mentioned FPGA embedded system consists of CycloneII2C35 FPGA (Field-Programmable Gate Array, field programmable gate array), SDRAM (Synchronous Dynamic Random Access Memory, synchronous dynamic random access memory), NAND flash (NAND flash memory), USB (Universal Serial Bus, universal Serial bus) interface chip ISP1362, 32 groups of OLED driver interface chip SH1101A and power management modules. The computer communicates with the FPGA embedded system through the USB interface. After the USB cable is disconnected, the turntable starts to work. The FPGA embedded system stores images and When the stereoscopic display system is running, the image is transmitted to the OLED array through the OLED driver interface, and the FPGA embedded system sends a synchronous display signal to the FPGA embedded system according to the signal of the Hall device. the

Compared with the LED-based rotating true three-dimensional display system, the present invention has a spatial display resolution of 528×256×360 due to the use of an OLED array, and its motor speed can be reduced by half due to the double-sided OLED display, and the Half the system noise, increasing the reliability of operation. The display panel thickness of OLED is one hundredth of that of LED, which can eliminate visual blind spots. the

The invention has the advantages of low cost, easy realization, reliable operation and high stability. the

Description of drawings

Figure 1 Schematic diagram of OLED-based full-angle naked-view space imaging system

Figure 2 is a block diagram of the FPGA embedded system based on CycloneII2C35.

Detailed ways

A preferred embodiment of the utility model is described as follows in conjunction with the accompanying drawings: Referring to Fig. 1, the full-angle naked-view space imaging system based on organic light-emitting diodes includes an OLED array (2), an FPGA embedded system (3) and a computer (9 ), two groups of OLED arrays (2) are mounted back-to-back on a metal sheet (1) to form a double-sided display imaging carrier, and the double-sided display imaging carrier is vertically installed on a turntable (7) and located on the turntable (7) on the center line; a DC stabilized power supply (3), the FPGA embedded system (3) and a Hall device (4) are installed on the turntable (7). A strong magnet (6) is fixedly installed, and the strong magnet (6) is close to the running track of the Hall device (4); the DC power supply (3) is two groups of OLED arrays (2) and the FPGA embedded system (3 ) to provide working power, the two groups of OLED arrays (2) are connected to a computer (9) via an FPGA embedded system (3), and the Hall device (4) is directly connected to a computer (9). The OLED array (2) adopts high-brightness active-driven OLED units, the brightness reaches 10000 cd/m2, and the panoramic view angle is 170 degrees. A motor is connected to the turntable and drives the turntable to rotate at a high speed of 8 to 10 revolutions per second. The two groups of OLED arrays (2) are connected to the FPGA embedded system (3) through data lines. Referring to Fig. 2, the FPGA embedded system (3) consists of CycloneII2C35 FPGA (Field-Programmable Gate Array, field programmable gate array), synchronous dynamic random access memory SDRAM, NAND flash memory, USB interface chip ISP1362, and 32 groups of OLED driver interface chips SH1101A and power management modules. The computer (9) communicates with the FPGA embedded system (3) through the USB interface. After the USB cable is disconnected, the turntable starts to work. The FPGA embedded system stores images and sends them to the OLED array (2) through the OLED driver interface when the stereoscopic display system is running. For image transmission, the FPGA embedded system (3) sends a synchronous display signal to the FPGA embedded system (3) according to the signal of the Hall device (4). the

Claims (4)

1. the naked visual space of the full-shape based on an Organic Light Emitting Diode imaging system comprises OLED array (2), FPGA embedded system (3) and computing machine (9), it is characterized in that:

A. have two groups of said OLED arrays (2) to be mounted on a sheet metal (1) back-to-back and go up formation double-sided display imaging support, this double-sided display imaging support vertically is installed on the turntable (7), and is positioned on the center line of turntable (7);

B., a D.C. regulated power supply (3), said FPGA embedded system (3) and a hall device (4) are housed on said turntable (7); At turntable (7) external fixation a strong magnet (6) is installed, this strong magnet (6) is near the running orbit of said hall device (4);

C. said direct supply (3) is that two groups of OLED arrays (2) and FPGA embedded system (3) provide working power; Said two groups of OLED arrays (2) connect computing machine (9) through FPGA embedded system (3), and said hall device (4) directly connects computing machine (9).

2. the naked visual space of the full-shape based on Organic Light Emitting Diode according to claim 1 imaging system is characterized in that said OLED array (2) adopts the active driving OLED of high brightness unit, and brightness reaches 10000cd/m2, and the panorama visible angle is 170 degree.

3. the naked visual space of the full-shape based on Organic Light Emitting Diode according to claim 1 imaging system is characterized in that connecting the said turntable of driving (7) with per second 8 to 10 circle high speed rotating by a motor (8).

4. the naked visual space of the full-shape based on Organic Light Emitting Diode according to claim 1 imaging system is characterized in that said two groups of OLED arrays (2) are connected with FPGA embedded system (3) through data line.

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