LED screen based on IPS hard screen technology

Abstract

The utility model discloses an LED screen based on an IPS hard screen technology. The LED screen comprises a shell, an IPS display panel, an LED panel and a master controller. The IPS display panel is installed at the outermost end of the shell, and a plurality of light beam channels are arranged in the IPS display panel. The LED panel is mounted on the inner side of the IPS display panel, and an LED pixel substrate corresponding to the light beam channel is arranged in the LED panel; the main controller is connected with the LED panel and is used for controlling the display state of each pixel substrate on the LED panel, and the display state comprises a lightening state and an extinguishing state; and the master controller is also connected with the IPS display panel. During use, for a color area (colors except black) in a picture, the main controller can enable the pixel substrate in the corresponding area to be in a lightened state and output a specified color; for the black area in the picture, the main controller can enable the pixel substrate in the corresponding area to be in the extinguished state, the pixel substrate in the extinguished state is naturally black and has no light source, the problem of light leakage is naturally solved, and the user experience feeling is improved.

Description

Technical Field

[0001] This application relates to the field of displays, and more specifically to an LED screen based on IPS hard screen technology. Background Technology

[0002] As is well known, IPS monitors have many advantages such as wide viewing angles and vibrant colors. However, most IPS monitors currently have an inherent flaw: light leakage. This is because these monitors typically have a backlight panel installed at the bottom, and the light emitted from this panel is then used by a backlight panel to illuminate the entire IPS display. During use, the backlight panel is constantly on. For black areas on the screen, because the liquid crystal molecules in the IPS panel cannot perfectly block light transmission, the black areas appear washed out in dark environments, negatively impacting the user experience. Summary of the Invention

[0003] This application is made in order to solve at least one of the above problems.

[0004] This application provides an LED screen based on IPS hard screen technology, including a housing, an IPS display panel, an LED panel, and a main controller;

[0005] The IPS display panel is mounted at the outermost end of the housing, and its interior contains several beam channels;

[0006] The LED panel is mounted inside the IPS display panel, and its interior contains an LED pixel substrate corresponding to the beam channel;

[0007] The main controller is connected to the LED panel and is used to control the display state of each pixel substrate on the LED panel, wherein the display state includes a lit state and an off state.

[0008] The main controller is also connected to the IPS display panel and is used to control the corresponding beam channel of the IPS display panel to be in an open or closed state according to the display state of each pixel substrate.

[0009] In one embodiment, each pixel substrate further includes a red LED, a green LED, a blue LED, and a pixel controller;

[0010] The pixel controller is connected to the red LED, green LED, and blue LED respectively, and is used to control the light intensity of each of the red LED, green LED, and blue LED to ultimately display the specified light beam.

[0011] In one embodiment, the red LED, green LED, and blue LED are miniature light-emitting diodes with a length or width of no more than 350 micrometers.

[0012] In one embodiment, the IPS display panel includes a first polarizing plate, a second polarizing plate, a glass substrate, a liquid crystal molecule structure, and an electric field application structure;

[0013] The first polarizing plate and the second polarizing plate are arranged side by side, with a gap between them;

[0014] The glass substrate is in close contact with the first polarizing plate;

[0015] The liquid crystal molecule structure is located between the glass substrate and the first polarizing plate;

[0016] The electric field application structure is installed on both sides of the liquid crystal molecule structure and connected to the main controller for applying an electric field to the liquid crystal molecule structure.

[0017] In one embodiment, the electric field dispensing structure includes a positive terminal, a negative terminal, and a power source;

[0018] The positive and negative ends are located on both sides of the liquid crystal molecule structure;

[0019] The power supply is connected to the main controller and is used to supply voltage to the positive and negative terminals under the control of the main controller.

[0020] In one possible implementation, the main controller is a microcontroller.

[0021] In one embodiment, the microcontroller is mounted on the inner side of the housing.

[0022] In one embodiment, two adjacent LED pixel substrates are provided with non-transparent baffles.

[0023] In one embodiment, the non-transparent baffle has a height of 0.8~1.1 mm.

[0024] In one embodiment, the non-transparent baffle is integrally formed with the LED panel.

[0025] The above embodiments have the following beneficial effects: In use, for colored areas (colors other than black) in the image, the main controller can make the corresponding pixel substrates in the corresponding areas light up and output the specified color; for black areas in the image, the main controller can make the corresponding pixel substrates in the corresponding areas turn off. The pixel substrates in the off state naturally appear black, without light source, thus solving the problem of light leakage and improving the user experience. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a simplified exploded view of the structure of an LED screen based on IPS hard screen technology according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0029] Figure 3 This is a simplified structural diagram of the electric field application structure in an embodiment of the present invention.

[0030] Reference numerals: 1. Housing; 2. IPS display panel; 21. Beam channel; 211. First polarizing plate; 212. Second polarizing plate; 213. Glass substrate; 214. Liquid crystal molecule structure; 215. Positive terminal; 216. Negative terminal; 217. Power supply; 3. LED panel; 31. Pixel substrate; 311. Pixel controller; 4. Main controller; 5. Non-transparent baffle. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. It should be understood that the present invention is not limited to the exemplary embodiments described herein. Based on the embodiments of the present invention described herein, all other embodiments obtained by those skilled in the art without inventive effort should fall within the protection scope of the present invention.

[0032] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0033] It should be understood that the invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0034] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. When used herein, the singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “compose” and / or “comprising,” when used in this specification, confirm the presence of the stated features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0035] To fully understand this invention, a detailed structure will be presented in the following description to illustrate the technical solution proposed by this invention. Optional embodiments of the invention are described in detail below; however, in addition to these detailed descriptions, the invention may have other embodiments.

[0036] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] like Figure 1 and Figure 2 As shown, this application provides an LED screen based on IPS hard screen technology, including a housing 1, an IPS display panel 2, an LED panel 3, and a main controller 4;

[0038] The IPS display panel 2 is mounted at the outermost end of the housing 1, and its interior contains several beam channels 21;

[0039] The LED panel 3 is installed inside the IPS display panel 2, and its interior contains an LED pixel substrate 31 corresponding to the beam channel 21.

[0040] The main controller 4 is connected to the LED panel 3 and is used to control the display status of each pixel substrate 31 on the LED panel 3, including the on state and the off state.

[0041] The main controller 4 is also connected to the IPS display panel 2 and is used to control the corresponding beam channel 21 of the IPS display panel 2 to be in an open or closed state according to the display state of each pixel substrate 31.

[0042] In this embodiment, the housing 1 is a rectangular body with a cavity on one side. The LED panel 3 and the IPS display panel 2 are installed inside the cavity, with the IPS display panel 2 located on the outermost side of the housing 1.

[0043] The LED panel 3 has several pixel substrates 31 (pixels) arranged in an array. Each pixel substrate 31 is connected to a master controller 4, which controls each pixel substrate 31 to emit a beam of light of a specified color. The master controller 4 is a microcontroller, which is attached to the inner side of the housing 1 and can be quickly cooled by the housing 1.

[0044] The IPS display panel 2 also has several pixel substrates 31 with several beam channels 21 arranged on them. Each beam channel 21 is connected to a master controller 4, which controls whether each beam channel 21 is in an open or closed state. When the beam channel 21 is in an open state, the light beam emitted by the pixel substrate 31 can pass through the beam channel 21 to display the corresponding color on the screen.

[0045] Therefore, during use, for colored areas (colors other than black) in the image, the main controller 4 can make the corresponding pixel substrate 31 in the lit state and output the specified color; for black areas in the image, the main controller 4 can make the corresponding pixel substrate 31 in the off state. The pixel substrate 31 in the off state naturally appears black, without a light source, which naturally solves the problem of light leakage and improves the user experience.

[0046] like Figure 2 As shown, in one possible embodiment, each pixel substrate 31 further includes a red LED, a green LED, a blue LED, and a pixel controller 311;

[0047] The pixel controller 311 is connected to the red LED, green LED and blue LED respectively, and is used to control the light intensity of the red LED, green LED and blue LED respectively, so as to ultimately display the specified light beam.

[0048] In this embodiment, the red LED, green LED, and blue LED are arranged in a triangular shape. The pixel controller 311 is specifically installed on the side of the LED and is used to control the light intensity of each of the red LED, green LED, and blue LED to ultimately display the specified color.

[0049] The pixel controller 311 is specifically connected to the main controller 4, and under the instruction of the main controller 4, it controls the pixel substrate 31 to emit a specified light beam.

[0050] In one embodiment, the red LED, green LED, and blue LED are miniature light-emitting diodes with a length or width of no more than 350 micrometers.

[0051] In this embodiment, the red LED, green LED, and blue LED are all miniature light-emitting diodes. The screen can accommodate hundreds of thousands or even tens of millions of pixel substrates 31 to display more exquisite images.

[0052] like Figure 3 As shown, in one possible embodiment, the IPS display panel 2 includes a first polarizing plate 211, a second polarizing plate 212, a glass substrate 213, a liquid crystal molecule structure 214, and an electric field application structure.

[0053] The first polarizing plate 211 and the second polarizing plate 212 are arranged side by side, with a gap between them;

[0054] The glass substrate 213 is in close contact with the first polarizing plate 211;

[0055] The liquid crystal molecule structure is located between the glass substrate 213 and the first polarizing plate 211;

[0056] An electric field application structure is installed on both sides of the liquid crystal molecule structure 214 and connected to the main controller 4 to apply an electric field to the liquid crystal molecule structure 214.

[0057] In this embodiment, as shown in the figure, the electric field applied by the electric field application structure is horizontal. Therefore, the liquid crystal molecules twist parallel to the substrate. Liquid crystal molecules without an applied electric field are aligned parallel to the substrate (HOMOGENEOUS). The upper and lower polarizing plates are arranged at a 90-degree angle, always remaining perpendicular. The polarization axis of the bottom polarizing plate is the same as the alignment of the liquid crystal molecules. Incident light travels in a straight line through the parallel-arranged liquid crystal layer without changing its direction of travel. The emitted light cannot pass through the upper polarizing plate, thus presenting an opaque black state. After applying an electric field, the liquid crystal molecules twist, producing birefringence in the liquid crystal layer. This changes the direction of travel of the incident light, allowing it to pass through the upper polarizing plate and present a transparent state. When the liquid crystal molecules twist parallel to the substrate without an applied electric field, and the arrangement of the liquid crystal molecules is less than the tilt angle, the viewing angle of the black state increases, resulting in a wider viewing angle for the brightness ratio.

[0058] In one embodiment, the electric field dispensing structure includes a positive terminal 215, a negative terminal 216, and a power supply 217;

[0059] The positive electrode 215 and the negative electrode 216 are located on both sides of the liquid crystal molecule structure 214;

[0060] Power supply 217 is connected to the main controller 4 and is used to supply voltage to the positive terminal 215 and the negative terminal 216 under the control of the main controller 4.

[0061] In this embodiment, during use, the main controller 4 controls the power supply 217 to turn on or off. When the power supply 217 is turned on, an electric field is applied, and when the power supply 217 is turned off, the electric field is stopped.

[0062] In one embodiment, two adjacent LED pixel substrates 31 are provided with non-transparent baffles 5.

[0063] In this embodiment, the non-transparent baffle 5 is specifically disposed between each pair of pixel substrates 31, which can reduce interference to other pixel positions when the light beam reaches the designated position.

[0064] Preferably, the pixel controller 311 can also act as a non-transparent baffle 5 disposed between every two pixel substrates 31, which can save costs.

[0065] Preferably, the non-transparent baffle 5 has a height of 0.8~1.1 mm, which is sufficient to block the transmission of light beams between the two pixel substrates 31 without increasing the thickness of the entire display screen.

[0066] Preferably, the non-transparent baffle 5 is integrally set with the LED panel 3, which can be integrally formed during injection molding, thereby improving the neatness and strength of the LED panel 3.

[0067] The present invention has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the invention to the scope of the described embodiments. Furthermore, those skilled in the art will understand that the present invention is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of the present invention, all of which fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. An IPS hard screen based LED screen, characterized in that, The shell, the IPS display panel, the LED panel and the general controller are included. The IPS display panel is installed at the outermost end of the shell, and the inner part of the IPS display panel contains several light beam channels. The LED panel is installed at the inner side of the IPS display panel, and the inner part of the LED panel contains LED pixel substrates corresponding to the light beam channels. The general controller is connected to the LED panel, and is used for controlling the display state of each pixel substrate on the LED panel, wherein the display state includes the lighting state and the extinguishing state. The general controller is also connected to the IPS display panel, and is used for controlling the IPS display panel to be in the opening state or the closing state according to the display state of each pixel substrate.

2. The IPS hard screen technology based LED screen according to claim 1, wherein, Each pixel substrate further includes a red LED lamp, a green LED lamp, a blue LED lamp and a pixel controller. The pixel controller is connected to the red LED lamp, the green LED lamp and the blue LED lamp respectively, and is used for controlling the light intensity of the red LED lamp, the green LED lamp and the blue LED lamp respectively, so as to finally display a specified light beam.

3. The IPS hard screen technology based LED screen according to claim 2, characterized in that, The red LED lamp, the green LED lamp and the blue LED lamp are micro light emitting diodes with the length or width not greater than 350 microns.

4. The IPS hard screen technology based LED screen according to claim 1, wherein, The IPS display panel includes a first polaroid, a second polaroid, a glass substrate, a liquid crystal molecule structure and an electric field applying structure. The first polaroid and the second polaroid are arranged side by side, and a gap is left between the first polaroid and the second polaroid. The glass substrate is close to the first polaroid. The liquid crystal molecule structure is located between the glass substrate and the first polaroid. The electric field applying structure is installed on both sides of the liquid crystal molecule structure, and is connected to the general controller, and is used for applying an electric field to the liquid crystal molecule structure.

5. The IPS hard screen technology based LED screen according to claim 4, characterized in that, The electric field applying structure includes a positive electrode, a negative electrode and a power supply. The positive electrode and the negative electrode are located on both sides of the liquid crystal molecule structure. The power supply is connected to the general controller, and is used for giving the positive electrode and the negative electrode a voltage under the control of the general controller.

6. The IPS hard screen technology based LED screen according to any one of claims 1-5, characterized in that, The general controller is a single-chip microcomputer.

7. The IPS hard screen technology based LED screen according to claim 6, characterized in that, The single-chip microcomputer is installed on the inner side of the shell.

8. The IPS hard screen technology based LED screen according to claim 1, wherein, Two adjacent LED pixel substrates are provided with a non-transparent baffle.

9. The IPS hard screen technology based LED screen according to claim 8, characterized in that, The non-transparent baffle has a height of 0.8-1.1 mm.

10. The IPS hard screen technology based LED screen according to claim 8, wherein, The non-transparent baffle is integrally arranged with the LED panel.

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