LED display panel with improved light extraction

Abstract

The utility model discloses an LED display panel that improves light emitting effect, including substrate, red LED, green LED and blue LED, still include the retaining wall of setting on the substrate, and the retaining wall includes M horizontal retaining wall units and N vertical retaining wall units, and the distance between two adjacent horizontal retaining wall units is equal with the distance between two adjacent vertical retaining wall units, and PxQ pixel areas are formed between horizontal retaining wall unit and vertical retaining wall unit, wherein M is the integer greater than 1, N is the integer greater than 1, P=M-1, Q=N-1, and one pixel unit that is composed of red LED, green LED and blue LED is arranged in each pixel area, wherein red LED, green LED and blue LED are all fixed on the substrate. The pixel unit in the utility model is arranged in the pixel area formed by horizontal retaining wall unit and vertical retaining wall unit, and the ink drop in each pixel area will not flow mutually when jetting on the substrate, thereby making the ink layer thickness in each pixel area more uniform.

Description

Technical Field

[0001] This utility model relates to an LED display panel with improved light emission effect, belonging to the field of liquid crystal display technology. Background Technology

[0002] An LED display panel consists of a substrate and several pixel units fixedly disposed on the substrate. Each pixel unit includes red, green, and blue LEDs, which are typically rectangular. The arrangement of these LEDs significantly affects their light output. Existing LED display panels typically employ the following arrangement of red, green, and blue LEDs: Figure 2 and Figure 3 As shown, rectangular red, green, and blue LEDs are arranged in parallel and equally spaced order, with the red and blue LEDs located on either side of the green LEDs. To reduce the size of the pixel units, some or all of the green LEDs are located between the red and blue LEDs. This distribution causes the green LEDs to block the red and blue LEDs, thus affecting the light emission effect of the LED display panel. In order to encapsulate the LED display panel, after fixing the red, green, and blue LEDs onto the substrate, inkjet printing is required on the substrate. In the prior art, there are no gaps between the pixel units, and the ink droplets between the pixel units flow to each other, resulting in uneven inkjet layer thickness of the LED display panel, which affects the quality of the LED display panel. Summary of the Invention

[0003] The purpose of this invention is to provide an LED display panel that improves light emission performance and solves the technical defect in the prior art where the ink droplets flow during the encapsulation of LED display panels causes uneven ink spraying at each pixel unit.

[0004] To solve the above problems, the technical solution adopted by this utility model is: an LED display panel for improving light emission effect, including a substrate, red LEDs, green LEDs and blue LEDs, and also including baffles disposed on the substrate. The baffles include M horizontal baffle units and N vertical baffle units. The horizontal baffle units are evenly distributed, and the vertical baffle units are evenly distributed. The distance between two adjacent horizontal baffle units is equal to the distance between two adjacent vertical baffle units. P×Q pixel areas are formed between the horizontal baffle units and the vertical baffle units, where M is an integer greater than 1, N is an integer greater than 1, P=M-1, Q=N-1. Each pixel area is provided with a pixel unit composed of red LEDs, green LEDs and blue LEDs, wherein the red LEDs, green LEDs and blue LEDs are all fixed on the substrate.

[0005] As a further improvement of the present utility model, the red LED, green LED and blue LED are all rectangular, wherein the red LED and the blue LED are arranged in parallel in a longitudinal direction, the green LED is arranged transversely perpendicular to the red LED and the blue LED, and the green LED, the red LED and the blue LED are integrally distributed in a "pin" shape.

[0006] As a further improvement of the present utility model, the distance between the red LED and the blue LED and the adjacent longitudinal barrier wall units is equal, both being D1, the distance between the green LED and the adjacent transverse barrier wall unit is D2, and D2=D1.

[0007] As a still further improvement of the present utility model, the distance between the red LED and the blue LED in the same pixel unit is D3, and D3=D1.

[0008] In summary, the beneficial effects of the present utility model are: the pixel units of the present utility model are arranged in the pixel regions formed by the transverse barrier wall units and the longitudinal barrier wall units, when ink is jetted on the substrate, ink droplets in each pixel region will not flow to each other, so that the thickness of the ink jet layer in each pixel region is more uniform.

[0009] In the present utility model, the distribution of the red LED, the green LED and the blue LED is closer to a square shape, and the green LED will not overlap the red LED and the blue LED, thereby not affecting the light emission of the red LED and the blue LED, and improving the light output effect of the present utility model.

[0010] In the present utility model, the distances among the red LED, the green LED and the blue LED, and the distances between the LEDs and the barrier walls allow the area of the pixel region to be set to the minimum on the premise of ensuring that the light output effect is not affected, thereby improving the authenticity and accuracy of the color displayed by the display panel. Description of Drawings

[0011] Figure 1 is a schematic structural view of the present utility model.

[0012] Figure 2 is a schematic arrangement diagram of red LED, green LED and blue LED in the prior art Figure 1 .

[0013] Figure 3 is a schematic arrangement diagram of red LED, green LED and blue LED in the prior art Figure 2 .

[0014] Wherein: 1, substrate; 2, red LED; 3, green LED; 4, blue LED; 5, transverse barrier wall unit; 6, longitudinal barrier wall unit. Detailed Description of Embodiments

[0015] The specific embodiments of the present utility model will be further described below with reference to the accompanying drawings.

[0016] As Figure 1 The LED display panel with improved light extraction effect shown comprises a substrate 1, a red LED 2, a green LED 3, a blue LED 4 and a barrier wall arranged on the substrate 1. The barrier wall comprises M horizontal barrier units 5 and N vertical barrier units 6. Both the horizontal barrier units 5 and the vertical barrier units 6 are in the shape of long strips and are fixed on the substrate 1. The M horizontal barrier units 5 are distributed at equal intervals, and the N vertical barrier units 6 are distributed at equal intervals. The distance between two adjacent horizontal barrier units 5 is equal to the distance between two adjacent vertical barrier units 6, and P×Q square pixel regions are formed between the horizontal barrier units 5 and the vertical barrier units 6, wherein M is an integer greater than 1, N is an integer greater than 1, P=M-1, Q=N-1. One pixel unit composed of red LED 2, green LED 3 and blue LED 4 is arranged in each pixel region, one pixel unit is composed of one red LED 2, one green LED 3 and one blue LED 4, wherein the red LED 2, the green LED 3 and the blue LED 4 are all fixed on the substrate 1. In the present utility model, after the red LED 2, the green LED 3 and the blue LED 4 are fixed on the substrate 1, ink-jet printing is carried out in the pixel regions. Due to the arrangement of the horizontal barrier units 5 and the vertical barrier units 6, ink droplets in different pixel regions will not flow into each other, so that the ink-jet layer is more uniform.

[0017] As Figure 1 shown, in the present utility model, the red LED 2, the green LED 3 and the blue LED 4 are all rectangular. The red LED 2 and the blue LED 4 are parallel and arranged longitudinally, the green LED 3 is perpendicular to the red LED 2 and the blue LED 4 and arranged transversely, and the green LED 3, the red LED 2 and the blue LED 4 are distributed in an overall "pin-shaped" arrangement, so that there is no mutual shielding between the green LED 3, the red LED 2 and the blue LED 4, and the light extraction effect of the present utility model is improved.

[0018] As Figure 1 shown, in the present utility model, the red LED 2 is located on the left side of the blue LED 4, the distance between the red LED 2 and the vertical barrier unit 6 on the left side of the red LED 2 is D1, the distance between the blue LED 4 and the vertical barrier unit 6 on the right side of the blue LED 4 is also D1, the distance between the green LED 3 and the adjacent horizontal barrier unit 5 is D2, and D2=D1. In the present utility model, the distance between the red LED 2 and the blue LED 4 in the same pixel unit is D3, and D3=D1.

[0019] Unless otherwise specified in the above description, all parts are existing technology or can be implemented using existing technology. Furthermore, the specific embodiments described in this utility model are merely preferred embodiments of the invention and are not intended to limit the scope of this utility model. That is, all equivalent changes and modifications made within the scope of this utility model patent should be considered within the technical scope of this utility model.

Claims

1. An LED display panel for improving light emission performance, comprising a substrate (1), a red LED (2), a green LED (3), and a blue LED (4), characterized in that: further comprising a barrier wall arranged on a substrate (1), wherein the barrier wall comprises M transverse barrier wall units (5) and N longitudinal barrier wall units (6), the transverse barrier wall units (5) are distributed at equal intervals, the longitudinal barrier wall units (6) are distributed at equal intervals, a distance between two adjacent transverse barrier wall units (5) is equal to a distance between two adjacent longitudinal barrier wall units (6), and P×Q pixel regions are formed between the transverse barrier wall units (5) and the longitudinal barrier wall units (6), wherein M is an integer greater than 1, N is an integer greater than 1, P=M-1, Q=N-1, one pixel unit consisting of a red LED (2), a green LED (3) and a blue LED (4) is arranged in each pixel region, and the red LED (2), the green LED (3) and the blue LED (4) are all fixed on the substrate (1).

2. The LED display panel with improved light emission effect according to claim 1, characterized in that: The red LED (2), the green LED (3) and the blue LED (4) are all rectangular, wherein the red LED (2) and the blue LED (4) are parallel and arranged longitudinally, the green LED (3) is perpendicular to the red LED (2) and the blue LED (4) and arranged transversely, and the green LED (3), the red LED (2) and the blue LED (4) are overall distributed in a triangular arrangement like the Chinese character "pin".

3. The LED display panel with improved light emission effect according to claim 2, characterized in that: A distance between the red LED (2), the blue LED (4) and the adjacent longitudinal barrier wall unit (6) is equal and is D1 respectively, a distance between the green LED (3) and the adjacent transverse barrier wall unit (5) is D2, and D2=D1.

4. The LED display panel with improved light emission effect according to claim 3, characterized in that: A distance between the red LED (2) and the blue LED (4) in the same pixel unit is D3, and D3=D1.

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