Static / semi-dynamic image display system based on micro light emitting diode display

Abstract

A static / semi-dynamic image display system based on a micro light-emitting diode display is characterized by comprising a low-density mask driving circuit on the bottom layer, a pixel dot matrix is laid on the low-density mask driving circuit, the low-density mask driving circuit and the pixel dot matrix are connected through a connecting electrode, and the pixel dot matrix is covered with an anti-dizziness protective film; the low-density mask driving circuit is connected with an MCU (Microprogrammed Control Unit); the pixel dot matrix is provided with N pattern assemblies, each pattern assembly is composed of at least one pixel point, all the pixel points of the pattern assembly are connected in parallel, the anodes of all the pixel points are connected in parallel to form the driven end of the pattern assembly, and the cathodes of all the pixel points are connected in parallel to form the grounding end of the pattern assembly. The micro light-emitting diode display has the advantages that the pixel dot matrix in the micro light-emitting diode display is divided into a plurality of pattern assemblies, display driving of corresponding images can be achieved through the low-density mask driving circuit by using an external cheap MCU, and the micro light-emitting diode display is simple in structure, low in use cost, stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of display, in particular to a static / semi-dynamic image display system based on a micro-light emitting diode display. Background Art

[0002] Microled is a new type of "light source + imaging" device, that is, a micro-light emitting diode display. Compared with traditional display or projection technology, Microled devices serve as both light sources and imaging functions, so their device structure is simpler and more reliable. And because its light-emitting pixels are smaller, it can provide high resolution in a very small area, so the device can be used as a light source and image source for projection, and can also be directly used to manufacture display screens.

[0003] The driving circuit of traditional Microled devices is manufactured using high-density ASIC chip technology, which can independently control each pixel in the Microled dot matrix. The chip circuit is complex and uses a high-speed communication interface to receive digital video signals. Therefore, the peripheral chip that cooperates with it must also be a high-speed and high-configuration SOC chip. It cannot work with a cheap MCU, so the product cost is usually high.

[0004] Disadvantages of existing technology: The driving circuit of traditional microled devices is complex and requires high-speed communication interfaces and dedicated ASIC circuits for encoding processing, which is costly. Utility Model Content

[0005] The utility model provides a static / semi-dynamic image display system based on a micro-light emitting diode display, which has a simple structure and low use cost.

[0006] To achieve the above-mentioned purpose, the utility model provides a static / semi-dynamic image display system based on a micro-LED display, the key of which is: comprising a low-density mask drive circuit at the bottom, a pixel matrix is ​​laid on the low-density mask drive circuit, the two are connected via connecting electrodes, and the low-density mask drive circuit is connected to an MCU;

[0007] The pixel matrix is ​​provided with N pattern components, each of which is composed of at least one pixel point, all the pixel points of the pattern component are connected in parallel, the anodes of all the pixel points are connected in parallel to form the driven end of the pattern component, and the cathodes of all the pixel points are connected in parallel to form the ground end of the pattern component. Wherein, N is a positive integer greater than or equal to 2.

[0008] Through the above design, the pixel matrix is ​​divided into N pattern components, which are connected and driven by the MCU through a low-density mask drive circuit to achieve precise control of a single pattern component, and the corresponding image is displayed by lighting up multiple pattern components corresponding to the image to be displayed. Its structure is simple, and it only needs to be driven by a simple low-density mask drive circuit controlled by an ordinary MCU to realize the display function of the corresponding image. It has a low cost and is particularly suitable for static / semi-dynamic effect projection lamps with fixed graphics and logos on vehicles, reducing the production cost of projection lamps.

[0009] Multiple pixels are connected in parallel to form a pattern component. Since all pixels in the same pattern component can only be turned on or off at the same time, the number of signal points required to control the lighting of the entire pattern will be greatly reduced, from the need to control tens of thousands / hundreds of thousands of pixels separately to only need to control dozens of pattern components, which greatly reduces the complexity of the driving circuit and can significantly reduce the chip cost and the cost of the peripheral control circuit.

[0010] Preferably, the low-density mask driving circuit is provided with N driving ends, and the N driving ends are respectively connected to the driven ends of the N pattern components in a one-to-one correspondence.

[0011] One driver drives one pattern component to achieve precise control of each pattern component.

[0012] Preferably, the pixel matrix is ​​either an RGB pixel matrix or a monochrome pixel matrix. According to specific use requirements, it can be driven and displayed for monochrome images or for color images.

[0013] Preferably, each pixel in the RGB pixel matrix is ​​composed of an RLED micro light emitting diode, a GLED micro light emitting diode and a BLED micro light emitting diode.

[0014] Each pixel is composed of three colors of micro-light-emitting diodes: red, yellow and blue, which meets the image color display requirements.

[0015] Preferably, the pixel matrix is ​​provided with 8 pattern components, and the 8 pattern components constitute an eight-segment digital tube image.

[0016] Through the above design, the image display function of the ten natural numbers 0-9 and a decimal point symbol is realized.

[0017] Preferably, at least one pattern component in the pixel matrix constitutes an image.

[0018] N pattern components realize the display of various images through different driving instructions.

[0019] Preferably, the image is either a static image or a semi-dynamic image.

[0020] By controlling the on and off of different pattern components, static or semi-dynamic image display functions can be achieved. For static images, the corresponding pattern components are lit or extinguished at the same time to achieve a completely static image display effect; for semi-dynamic images, the time and order of lighting or extinguishing each pattern component are set to form semi-dynamic image display effects such as animation and gradient.

[0021] Preferably, the low-density mask driving circuit is made of a silicon wafer, a PCB board, or a glass substrate.

[0022] Silicon wafer circuits have good electrical properties, are stable and reliable, and have low cost of use. PCB boards have the characteristics of high reliability, high stability, small size, light weight, and high flexibility. Glass substrates have excellent thermal stability, mechanical strength, dimensional stability, and insulation properties.

[0023] Preferably, the MCU is a low-power and low-computing-rate MCU.

[0024] The control and drive of the micro-LED display can be achieved through a low-power and low-computing-rate MCU, effectively reducing the cost of driving.

[0025] The low-power and low-operating-rate MCU is any one of microprocessors such as 8051, STM32, and S32K series.

[0026] Preferably, the pixel matrix is ​​covered with an anti-dizziness protective film.

[0027] The anti-glare protective film can effectively reduce reflected light and scattered light, providing a clearer and more comfortable viewing experience, especially in a bright outdoor environment or under strong light, and can effectively reduce the interference of glare on vision.

[0028] The beneficial effects of the utility model are as follows: by dividing the pixel matrix in the micro-light-emitting diode display microled into multiple pattern components, a low-power and low-computation rate MCU can be used to realize the display drive of the corresponding image through a low-density mask driving circuit, and the structure is simple, the use cost is low, and it is stable and reliable. It is very suitable for static / semi-dynamic effect projection lights for fixed graphics and logos on vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of an embodiment;

[0030] Figure 2 is a schematic diagram of an embodiment circuit;

[0031] Figure 3 Schematic diagram of the circuit structure of the embodiment. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and specific examples. The following embodiments or drawings are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0033] like Figure 1 As shown: a static / semi-dynamic image display system based on a micro-light emitting diode display, comprising a low-density mask driving circuit 1 at the bottom, a pixel matrix 2 is laid on the low-density mask driving circuit 1, and the two are connected via a connecting electrode 3, and the pixel matrix 2 is covered with an anti-dizziness protective film 4;

[0034] The low-density mask driving circuit 1 is connected to an MCU;

[0035] The pixel matrix 2 is provided with N pattern components, each of which is composed of at least one pixel point, all the pixel points of the pattern component are connected in parallel, the anodes of all the pixel points are connected in parallel to form the driven end of the pattern component, and the cathodes of all the pixel points are connected in parallel to form the ground end of the pattern component.

[0036] The low-density mask driving circuit 1 is provided with N driving ends, and the N driving ends are respectively connected to the driven ends of the N pattern components in a one-to-one correspondence.

[0037] The pixel matrix 2 is an RGB pixel matrix, and each pixel in the RGB pixel matrix is ​​composed of an RLED micro light emitting diode, a GLED micro light emitting diode and a BLED micro light emitting diode.

[0038] The pixel matrix 2 is provided with 8 pattern components, and the 8 pattern components constitute an eight-segment digital tube image, including the display states of ten natural numbers 0-9 and an image of a decimal point symbol.

[0039] At least one pattern component in the pixel matrix 2 constitutes an image.

[0040] The MCU in this embodiment is specifically a STM32L0 microprocessor, and the low-density mask driving circuit 1 is made of a silicon wafer.

[0041] like Figure 2 , Figure 3 As shown: the driving image in this embodiment is an 8-segment digital symbol image, including pattern components ah, a total of 8 pattern components, the input end of the low-density mask driving circuit 1 is connected to the control end of the MCU, the 8 driving ends of the low-density mask driving circuit 1 are connected one-to-one with the driven ends of the 8 pattern components, and the ground end of the pattern component is grounded.

[0042] The 8 pattern components can realize the image display function of 10 natural number display states of 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 and the decimal point symbol.

[0043] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A static / semi-dynamic image display system based on a micro-light emitting diode display, characterized in that: It comprises a bottom low-density mask driving circuit (1), a pixel matrix (2) is laid on the low-density mask driving circuit (1), the two are connected via a connecting electrode (3), and the low-density mask driving circuit (1) is connected to an MCU; The pixel matrix (2) is provided with N pattern components, each of which is composed of at least one pixel point, all the pixel points of the pattern component are connected in parallel, the anodes of all the pixel points are connected in parallel to form a driven end of the pattern component, and the cathodes of all the pixel points are connected in parallel to form a ground end of the pattern component.

2. The static / semi-dynamic image display system based on a micro-LED display according to claim 1, characterized in that: The low-density mask driving circuit (1) is provided with N driving ends, and the N driving ends are respectively connected to the driven ends of the N pattern components in a one-to-one correspondence.

3. The static / semi-dynamic image display system based on a micro-LED display according to claim 1, characterized in that: The pixel matrix (2) is either an RGB pixel matrix or a monochrome pixel matrix.

4. The static / semi-dynamic image display system based on a micro-LED display according to claim 3, characterized in that: Each pixel in the RGB pixel matrix is ​​composed of an RLED micro light emitting diode, a GLED micro light emitting diode and a BLED micro light emitting diode.

5. The static / semi-dynamic image display system based on a micro-LED display according to claim 1, characterized in that: The pixel matrix (2) is provided with 8 pattern components, and the 8 pattern components form an eight-segment digital tube image.

6. The static / semi-dynamic image display system based on a micro-LED display according to claim 1, characterized in that: At least one pattern component in the pixel matrix (2) forms an image.

7. The static / semi-dynamic image display system based on a micro-LED display according to claim 6, characterized in that: The image is either a static image or a semi-dynamic image.

8. The static / semi-dynamic image display system based on a micro-LED display according to claim 1, characterized in that: The low-density mask driving circuit (1) is made of either a silicon wafer, a PCB board, or a glass substrate.

9. The static / semi-dynamic image display system based on a micro-LED display according to claim 1, characterized in that: The MCU is a low-power and low-computing-rate MCU.

10. The static / semi-dynamic image display system based on micro-LED display according to claim 1, characterized in that: The pixel matrix (2) is covered with an anti-dizziness protective film (4).

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