CN216248696U

CN216248696U - High-definition energy-saving dynamic backlight module

Info

Publication number: CN216248696U
Application number: CN202122800016.9U
Authority: CN
Inventors: 王子龙; 傅斌
Original assignee: Shenzhen Liyan Technology Co ltd
Current assignee: Shenzhen Liyan Technology Co ltd
Priority date: 2021-06-21
Filing date: 2021-11-16
Publication date: 2022-04-08
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a high-definition energy-saving dynamic backlight module which comprises a plurality of LED assemblies arranged in an array, wherein the LED assemblies are powered by a 4.2V power supply, each LED assembly comprises a monochromatic LED lamp bead on a PCB (printed circuit board), the PCB is formed by laminating 4 layers of RF-4 materials and is fixed in an aluminum alloy shell, and the LED assemblies are driven by a low-voltage energy-saving driver in a sawtooth shape and in odd-even independent mode. The utility model adopts the monochromatic LED as the dynamic background self-luminous device, the energy-saving driving adopts the sawtooth shape, odd number and even number independent driving in the LED arrangement, and the normal use is not influenced when the self-luminous device is partially failed.

Description

High-definition energy-saving dynamic backlight module

Technical Field

The utility model relates to the technical field of display screens, in particular to a high-definition energy-saving dynamic backlight module.

Background

The LCD display household television 24-100 inches on the market adopts static LED and CCFL cold cathode fluorescent lamp backlight as the display light source. The self-luminous technology is an ideal mode of the display technology, and self-luminous does not have the problem of a visual angle naturally, but from the beginning of plasma display, the self-luminous technology has two major problems, namely service life and cost. Since it is self-luminous, the light emitting material is easily damaged, so that the life of the panel is problematic; the high price of the product caused by the high price of the self-luminous material is also an important reason for the difficulty in popularization of the self-luminous technology. If the self-luminous material is partially failed, the product cannot be normally used, and the use cost of a user is further increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a high-definition energy-saving dynamic backlight module, which solves the problems that in the prior art, if a self-luminous material is partially failed, a product cannot be normally used, and the use cost of a user is further increased.

The technical scheme of the utility model is realized as follows:

a high-definition energy-saving dynamic backlight module comprises a plurality of LED assemblies which are arranged in an array, wherein the LED assemblies are powered by a 4.2V power supply, the LED assemblies comprise monochromatic LED lamp beads on a PCB (printed circuit board), the PCB is formed by pressing 4 layers of RF-4 materials and is fixed in an aluminum alloy shell, and the LED assemblies are driven by a low-voltage energy-saving driver in a sawtooth shape and in odd-even independent mode.

The LED driving circuit further comprises a controller, wherein the controller is connected with the LED assembly through a low-voltage energy-saving driver.

As a preferred embodiment of the present invention, the controller includes a communication circuit and a control circuit, the communication circuit receives the input HDMI and GVA SDI signals and transmits them to the control circuit, and the control circuit is composed of an FPGA, a CPU, a GPU, a DSP, a gigabit network chip and a high-speed static storage chip, and is used for data scaling and grouping and high-speed modulation.

As a preferred embodiment of the present invention, the resolutions of the HDMI, GVA SDI signals are 1600 × 1200, 1920 × 1080, 2048 × 1152, 2560 × 960 and custom resolution.

As a preferred embodiment of the utility model, the controller comprises a circuit board formed by laminating 4 layers of RF-4 materials, and the communication circuit and the control circuit are fixed on the circuit board.

As a preferred embodiment of the utility model, the LED assembly comprises 4 single-color LED lamp beads fixed on a PCB.

As a preferred embodiment of the present invention, the single-color LED lamp beads include, but are not limited to, red lamp beads, yellow lamp beads, blue lamp beads, green lamp beads and white lamp beads.

The utility model has the beneficial effects that: the single-color LED is used as a dynamic background self-luminous device, the LED arrangement is driven in a sawtooth shape, an odd number and an even number independently in an energy-saving mode, and the normal use is not influenced when the self-luminous device is partially failed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a high-definition energy-saving dynamic backlight module according to the present invention;

FIG. 2 is a schematic diagram of independent driving of LED assemblies;

fig. 3 is a circuit schematic of a low voltage power saving driver.

In the figure, 1-LED assembly; 2-LED lamp beads.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1-3, the utility model provides a high-definition energy-saving dynamic backlight module, which comprises a plurality of LED assemblies 1 arranged in an array, wherein the LED assemblies 1 are powered by a 4.2V power supply, the LED assemblies 1 comprise monochromatic LED lamp beads 2 on a PCB circuit board, the PCB circuit board is formed by laminating 4 layers of RF-4 materials and is fixed in an aluminum alloy shell, and the LED assemblies 1 are driven by a low-voltage energy-saving driver in a zigzag and odd-even independent manner. The zigzag and odd-even independent driving means that the LED assemblies 1 arranged in an array are numbered according to the position sequence, and the same low-voltage energy-saving driver does not drive the LED assemblies 1 with adjacent numbers at the same time so as to ensure that the normal use is not influenced after the LED assemblies 1 are partially failed.

As a preferred embodiment of the present invention, the present invention further comprises a controller, and the controller is connected with the LED assembly 1 through a low-voltage energy-saving driver. The controller comprises a communication circuit and a control circuit, wherein the communication circuit receives input HDMI and GVA SDI signals and transmits the signals to the control circuit, and the control circuit is formed by combining an FPGA, a CPU, a GPU, a DSP, a gigabit network chip and a high-speed static storage chip and is used for data scaling grouping and high-speed modulation. The resolutions of HDMI, GVA SDI signals are 1600 × 1200, 1920 × 1080, 2048 × 1152, 2560 × 960, and custom resolution.

HDMI and GVA SDI data are sent to an FPGA, a CPU, a GPU, a DSP, a gigabit network chip and a high-speed static storage chip, specific models of the chips are selected by users in a user-defined mode, connection among the chips is achieved by wiring on a circuit board, a powerful and programmable chip is formed, data scaling grouping and high-speed modulation are carried out, data bit scaling is carried out, and network cable error rate and receiving detection are supported. Dynamic backlight drive output arbitrary configuration: such as: the LCD displays 1920 x 1080 pixels and the dynamic backlight 5400 x 300 pixels. The dynamic background self-luminous device and the dynamic backlight module automatically configure the display under the coordination of the controller, such as: the display picture with the resolution of 1920 × 1080, the control circuit 3 automatically matches the required light source brightness according to the display picture, and the backlight 5 of the black background part is in a closed state. By automatically detecting the color and brightness of the display screen, the backlight 5 is turned on to provide the required brightness. The utilization rate of the self-luminous device is reduced by more than 40%, and the requirement on the self-luminous device can be reduced by more than 40%; the self-luminous cost is reduced, the temperature of the LCD is reduced, and the service life is prolonged. And the contrast of the picture is improved.

As a preferred embodiment of the utility model, the controller comprises a circuit board formed by laminating 4 layers of RF-4 materials, and the communication circuit and the control circuit are fixed on the circuit board. The controller is also fixed in the aluminum alloy shell, and the display screen is guaranteed to run at a low-temperature high-brightness state to achieve low power consumption and high reliability. The specific shape of the aluminum alloy shell is set according to the requirements of users. The fixing mode of the PCB and the aluminum alloy is the prior art, and the details are not repeated.

As a preferred embodiment of the utility model, the LED component 1 comprises 4 single-color LED lamp beads 2 fixed on a PCB circuit board. The monochromatic LED lamp beads 2 include, but are not limited to, red lamp beads, yellow lamp beads, blue lamp beads, green lamp beads and white lamp beads.

The utility model adopts the monochromatic LED as the dynamic background self-luminous device, the energy-saving driving adopts the sawtooth shape, odd number and even number independent driving in the LED arrangement, and the normal use is not influenced when the self-luminous device is partially failed.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an energy-conserving dynamic backlight unit of high definition which characterized in that: the LED lamp is characterized by comprising a plurality of LED assemblies which are arranged in an array, wherein the LED assemblies are powered by a 4.2V power supply, the LED assemblies comprise monochromatic LED lamp beads on a PCB (printed circuit board), the PCB is formed by pressing 4 layers of RF-4 materials and is fixed in an aluminum alloy shell, and the LED assemblies are driven by a low-voltage energy-saving driver in a sawtooth shape and in odd-even independent mode.

2. The high definition energy saving dynamic backlight module according to claim 1, wherein: the LED lamp also comprises a controller, wherein the controller is connected with the LED assembly through a low-voltage energy-saving driver.

3. The high definition energy saving dynamic backlight module according to claim 2, wherein: the controller comprises a communication circuit and a control circuit, wherein the communication circuit receives input HDMI and GVA SDI signals and transmits the signals to the control circuit, and the control circuit is composed of an FPGA, a CPU, a GPU, a DSP, a gigabit network chip and a high-speed static storage chip and is used for data scaling grouping and high-speed modulation.

4. The high definition energy saving dynamic backlight module according to claim 3, wherein: the resolutions of the HDMI and GVA SDI signals are 1600 × 1200, 1920 × 1080, 2048 × 1152, 2560 × 960 and custom resolution.

5. The high definition energy saving dynamic backlight module according to claim 3, wherein: the controller comprises a circuit board formed by pressing 4 layers of RF-4 materials, and the communication circuit and the control circuit are fixed on the circuit board.

6. The high definition energy saving dynamic backlight module according to claim 1, wherein: the LED assembly comprises 4 monochromatic LED lamp beads fixed on the PCB.

7. The high definition energy saving dynamic backlight module according to claim 6, wherein: the monochromatic LED lamp beads comprise red lamp beads, yellow lamp beads, blue lamp beads, green lamp beads and white lamp beads.