OLED display structure

Abstract

The utility model relates to the technical field of micro-displays, in particular to an OLED (Organic Light Emitting Diode) display structure, which comprises a light combination prism, the light combination prism comprises a light-in surface and a light-out surface; the light incident surface is connected with a single-color silicon-based OLED (Organic Light Emitting Diode) display; the light emitting surface is connected with a micro lens assembly; the micro-lens assembly is arranged on the light emitting surface of the light combining prism, the micro-lens assembly rotates the light path through the micro-lens array and increases the light extraction efficiency, so that the brightness of the OLED display is improved, the power consumption is reduced, and the structure can increase the direction of light reflected in the panel by adjusting the light path, so that the front brightness is improved, and the side brightness is reduced.

Description

Technical Field

[0001] This utility model relates to the field of microdisplay technology, specifically to an OLED display structure. Background Technology

[0002] To meet the application requirements of AR (Augmented Reality) / VR (Artificial Intelligence) devices, current OLED (Organic Light Emitting Diode) displays require high brightness. High brightness can improve the display effect. In AR / VR devices, high brightness can ensure clear images in various lighting environments and avoid image blurring and distortion caused by environmental interference. The current display brightness of OLED displays cannot meet the needs of AR / VR devices.

[0003] The applicant discovered through a search that Chinese patent document application number 201110180021.2, published on November 2, 2011, discloses an OLED display, an OLED display module, and a splicing structure thereof. The OLED display comprises multiple columns and rows of light-emitting pixel units. Each group of light-emitting pixel units includes a red, green, and blue sub-pixel unit. Each light-emitting pixel unit also includes a scanning electrode sub-pixel unit. Each row of light-emitting pixel units has a scanning electrode contact hole within the scanning electrode sub-pixel unit of a group of light-emitting pixel units, which is used to connect the cathode layer to the auxiliary electrode layer of the group of scanning electrode sub-pixel units, extending along the auxiliary electrode layer of the same column of scanning electrode sub-pixel units and leading out from the same scanning line. This device also fails to solve the aforementioned technical problem.

[0004] Therefore, in order to improve or solve at least one of the above problems, it is necessary to provide an OLED display structure that can improve the display brightness of OLED displays. Utility Model Content

[0005] The purpose of this invention is to provide an OLED display structure that can improve the display brightness of an OLED display.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an OLED display structure, including a light-combining prism; the light-combining prism includes a light-incident surface and a light-exiting surface; a monochrome silicon-based OLED display is connected to the light-incident surface; and a microlens assembly is connected to the light-exiting surface.

[0007] The microlens assembly includes a light-emitting substrate; a microlens is provided on one side of the light-emitting substrate.

[0008] The light-emitting substrate is provided with a light-emitting pixel; the microlens is disposed on the side of the light-emitting pixel away from the light-emitting substrate.

[0009] The plurality of light-emitting pixels are uniformly distributed on the light-emitting substrate; the plurality of microlenses are disposed on one side of the light-emitting pixels; the principal optical axis of the light-emitting pixels coincides with the principal optical axis of the microlenses.

[0010] The light-emitting pixel and the light-emitting substrate are an integral structure; the light-emitting substrate is a silicon-based transparent substrate.

[0011] The light-incident surface includes a red light-incident surface, a green light-incident surface, and a blue light-incident surface; the green light-incident surface is provided on one side of the light-exiting surface, and the blue light-incident surface is provided on the other side of the light-exiting surface; the red light-incident surface is provided on the side of the light-combining prism away from the light-exiting surface.

[0012] The monochrome silicon-based OLED display includes a pure red silicon-based OLED display, a pure blue silicon-based OLED display, and a pure green silicon-based OLED display; the pure red silicon-based OLED display is connected to the red light incident surface; the pure blue silicon-based OLED display is connected to the blue light incident surface; and the pure green silicon-based OLED display is connected to the green light incident surface.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention features a microlens assembly on the light-emitting surface of a light-combining prism. The microlens assembly rotates the optical path through a microlens array, increasing light extraction efficiency and thereby improving the brightness of the OLED display and reducing power consumption. This structure can increase the orientation of the light reflected from inside the panel by adjusting the optical path, thereby improving the brightness of the front and reducing the brightness of the sides.

[0015] Microlens components can guide and focus emitted light to the viewer, enhancing the brightness of OLED displays; this produces brighter, more vivid images, thus improving the overall visual experience.

[0016] This device helps maintain consistent image quality and color accuracy even when viewing the OLED display from different angles; it reduces potential brightness loss and color shift in OLED displays, ensuring better visibility from different viewing positions.

[0017] This device can effectively reduce the screen door effect; the screen door effect refers to the visibility of pixel structure on a display, especially in virtual reality applications; providing a smoother, more immersive viewing experience.

[0018] This device can enhance the display uniformity of OLED displays and reduce brightness or color variations between different areas of the screen; this makes the image quality of the entire display more aesthetically pleasing and consistent. Attached Figure Description

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0020] Figure 1 This is a schematic diagram of the OLED display structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the optical combining prism of this utility model.

[0022] Figure 3 This is a schematic diagram of the microlens assembly of this utility model.

[0023] The markings in the above figures are all:

[0024] The diagram is marked as follows:

[0025] 1. Optical combining prism,

[0026] 2. Received light surface: 201. Red light received light surface; 202. Green light received light surface; 203. Blue light received light surface.

[0027] 3. The surface that produces light.

[0028] 4. Monochrome silicon-based OLED display; 401. Pure red silicon-based OLED display; 402. Pure blue silicon-based OLED display; 403. Pure green silicon-based OLED display.

[0029] 5. Microlens assembly,

[0030] 6. Light-emitting substrate, 601 microlens,

[0031] 7. Light emitting pixel. Detailed Implementation

[0032] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of this utility model, and to facilitate its implementation.

[0033] Figure 1-3 The OLED display structure shown includes a light-combining prism 1; the light-combining prism 1 includes an incident light surface 2 and an exit light surface 3; a monochrome silicon-based OLED display 4 is connected to the incident light surface 2; and a microlens assembly 5 is connected to the exit light surface 3.

[0034] The light-emitting surface 3 of the light-combining prism 1 is provided with a microlens assembly 5. The microlens assembly 5 rotates the optical path through the microlens array to increase the light extraction efficiency, thereby improving the brightness of the OLED display and reducing power consumption. This structure can increase the orientation of the light reflected inside the panel by adjusting the optical path, thereby improving the brightness of the front and reducing the brightness of the sides.

[0035] The microlens assembly 5 includes a light-emitting substrate 6; a microlens 601 is provided on one side of the light-emitting substrate 6.

[0036] The light-emitting substrate 6 is a silicon substrate; the light-emitting substrate 6 is attached to the light-emitting surface 3 of the light-combining prism 1; the light emitted by the monochrome silicon-based OLED display 4 enters the light-emitting substrate 6 after being combined by the light-combining prism 1; the microlens 601 is made of transparent photoresist; the microlens 601 can adjust the light path to increase the direction of the light reflected inside the panel, thereby improving the brightness of the front and reducing the brightness of the side.

[0037] The light-emitting substrate 6 is provided with a light-emitting pixel 7; the microlens 601 is provided on the side of the light-emitting pixel 7 away from the light-emitting substrate 6.

[0038] The light-emitting pixel 7 is a light-emitting pixel block; the light-emitting pixel 7 and the light-emitting substrate 6 are an integral structure; the light emitted by the monochrome silicon-based OLED display 4 is combined by the light-combining prism 1 and then enters the light-emitting substrate 6; all the light in the light-emitting substrate 6 is emitted from the light-emitting pixel 7; the light emitted by the light-emitting pixel 7 is in a divergent state, and the microlens 601 is an elliptical lens. The light emitted by the light-emitting pixel 7 enters the microlens 601, and the microlens 601 focuses the light before emitting it, which can effectively improve the light emission efficiency.

[0039] Multiple light-emitting pixels 7 are evenly distributed on the light-emitting substrate 6; multiple microlenses 601 are disposed on one side of the light-emitting pixels 7; the principal optical axis of the light-emitting pixels 7 coincides with the principal optical axis of the microlenses 601.

[0040] Multiple light-emitting pixels 7 are evenly distributed on the side of the light-emitting substrate 6 away from the light-combining prism 1; the light-emitting substrate 6 emits light through the light-emitting pixels 7; a microlens 601 is disposed on one side of the light-emitting pixel 7, and an installation gap is provided between the microlens 601 and the light-emitting pixel 7; multiple microlenses 601 are provided on one side of the light-emitting substrate 6; each light-emitting pixel 7 is correspondingly provided with a microlens 601; multiple microlenses 601 form a microlens array, thereby enhancing the brightness of the emitted light.

[0041] The light-emitting pixel 7 and the light-emitting substrate 6 are an integral structure; the light-emitting substrate 6 is a silicon-based transparent substrate.

[0042] The light-incident surface 2 includes a red light-incident surface 201, a green light-incident surface 202, and a blue light-incident surface 203; the light-exiting surface 3 has a green light-incident surface 202 on one side and a blue light-incident surface 203 on the other side; the red light-incident surface 201 is located on the side of the light-combining prism 1 away from the light-exiting surface 3.

[0043] A green light-incident surface 202 and a blue light-incident surface 203 are respectively set on both sides of the light-emitting surface 3, and a red light-incident surface 201 is set on the side of the light-combining prism 1 away from the light-emitting surface 3. This allows red, green and blue light to enter the light-combining prism 1, reducing light loss and interference during light transmission, effectively improving light-combining efficiency, achieving precise and efficient mixing of the three colors of light, and thus outputting high-quality, high-purity composite light to meet the needs of various application scenarios with strict requirements for precise light-combining.

[0044] The monochrome silicon-based OLED display 4 includes a pure red silicon-based OLED display 401, a pure blue silicon-based OLED display 402, and a pure green silicon-based OLED display 403; the pure red silicon-based OLED display 401 is connected to the red light incident surface 201; the pure blue silicon-based OLED display 402 is connected to the blue light incident surface 203; and the pure green silicon-based OLED display 403 is connected to the green light incident surface 202.

[0045] Pure red silicon-based OLED display 401, pure blue silicon-based OLED display 402, and pure green silicon-based OLED display 403 are respectively connected to the red light incident surface 201, the blue light incident surface 203, and the green light incident surface 202. This allows each monochromatic light to directly and accurately enter the light combining prism 1 from its corresponding silicon-based OLED display, reducing light loss and interference during transmission and coupling. This ensures high purity and high quality input of the three primary colors of red, green, and blue, enabling the light combining prism 1 to efficiently and accurately mix the three colors, thereby outputting composite light with high color fidelity, strong contrast, and uniform brightness. This significantly improves the display effect and meets the application scenarios with high requirements for color accuracy and display quality.

[0046] The specific workflow of this utility model is as follows:

[0047] The light emitted by the monochrome silicon-based OLED display 4 is combined by the light-combining prism 1 and then enters the light-emitting substrate 6. All the light in the light-emitting substrate 6 is emitted from the light-emitting pixel 7. The light emitted from the light-emitting pixel 7 is in a divergent state. The light emitted from the light-emitting pixel 7 enters the microlens 601, and the microlens 601 focuses the light and then emits it, which can effectively improve the light emission efficiency.

[0048] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An OLED display structure, characterized in that: It includes a light-combining prism (1); the light-combining prism (1) includes an incident light surface (2) and an exit light surface (3); a monochrome silicon-based OLED display (4) is connected to the incident light surface (2); and a microlens assembly (5) is connected to the exit light surface (3).

2. An OLED display structure according to claim 1, characterized in that: The microlens assembly (5) includes a light-emitting substrate (6); a microlens (601) is provided on one side of the light-emitting substrate (6).

3. An OLED display structure according to claim 2, characterized in that: The light-emitting substrate (6) is provided with a light-emitting pixel (7); the microlens (601) is provided on the side of the light-emitting pixel (7) away from the light-emitting substrate (6).

4. An OLED display structure according to claim 3, characterized in that: Multiple light-emitting pixels (7) are uniformly distributed on the light-emitting substrate (6); multiple microlenses (601) are disposed on one side of the light-emitting pixels (7); the principal optical axis of the light-emitting pixels (7) coincides with the principal optical axis of the microlenses (601).

5. An OLED display structure according to any one of claims 3-4, characterized in that: The light-emitting pixel (7) and the light-emitting substrate (6) are an integral structure; the light-emitting substrate (6) is a silicon-based transparent substrate.

6. An OLED display structure according to claim 5, characterized in that: The light-incident surface (2) includes a red light-incident surface (201), a green light-incident surface (202), and a blue light-incident surface (203); the green light-incident surface (202) is provided on one side of the light-exiting surface (3), and the blue light-incident surface (203) is provided on the other side of the light-exiting surface (3); the red light-incident surface (201) is provided on the side of the light-combining prism (1) away from the light-exiting surface (3).

7. An OLED display structure according to claim 6, characterized in that: The monochrome silicon-based OLED display (4) includes a pure red silicon-based OLED display (401), a pure blue silicon-based OLED display (402), and a pure green silicon-based OLED display (403); the pure red silicon-based OLED display (401) is connected to the red light incident surface (201); the pure blue silicon-based OLED display (402) is connected to the blue light incident surface (203); and the pure green silicon-based OLED display (403) is connected to the green light incident surface (202).

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