Backlight structure of narrow frame of liquid crystal display screen

Abstract

A narrow frame backlight structure of a liquid crystal display screen comprises a thin film transistor (TFT) screen which is of a circular structure. The display area is arranged in the middle of the TFT screen; the frame is located on the outer side of the TFT screen; the LED light source can be a first LED light source, the first LED light source is arranged at the bottom of one side of the frame, the first LED light source is designed to be of an arc-shaped structure, and the radian of the arc-shaped outer side edge of the first LED light source is the same as that of the arc-shaped outer side edge of the frame. The periphery of the LED light source and the periphery of the frame are located on the same arc line, the narrow frame requirement of a product can be met, the light source requirement of the product can also be met, the LED backlight module is more suitable for a small-size circular TFT, the lighting effect is high, the brightness and uniformity effect can be met, and the cost is lower compared with a direct type backlight module.

Description

Technical Field

[0001] This utility model relates to the technical field of liquid crystal displays, and in particular to a narrow bezel backlight structure for a liquid crystal display screen. Background Technology

[0002] An LED LCD screen is a display screen that combines LED backlighting technology and LCD technology. It uses light-emitting diodes (LEDs) as the backlight source, and by controlling the brightness and color of the LEDs, it provides uniform and bright backlighting to the LCD screen, thereby improving the display effect of the LCD screen.

[0003] Typically, TFTs have their driver ICs bonded to the glass, resulting in a relatively large bezel on the IC side. This bezel serves as the placement edge for edge-lit LED backlights, so the narrow bezel usually refers to the non-light source side. Some TFTs, especially small-sized circular TFTs, have their driver ICs bonded to the FPC, requiring all edges to be narrow. Therefore, for TFTs with driver ICs not on the glass, only direct-lit backlighting can meet the requirement of a consistently narrow bezel. However, direct-lit backlighting has lower luminous efficiency, leading to more heat generation and reduced product reliability. Furthermore, direct-lit backlighting typically uses more LEDs to achieve brightness and uniformity, resulting in higher costs.

[0004] This solution provides a side-lit backlight that can meet the requirement of a consistently narrow bezel across the entire frame. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a narrow bezel backlight structure for a liquid crystal display screen.

[0006] The purpose of this utility model is achieved through the following technical solution: a narrow bezel backlight structure for a liquid crystal display screen, comprising: a TFT screen, the TFT screen having a circular structure; a display area, the display area being disposed in the middle of the TFT screen; a bezel, the bezel being located on the outer side of the TFT screen; and an LED light source, the LED light source being an LED light source one, the LED light source one being disposed at the bottom of one side of the bezel.

[0007] As a further embodiment of this utility model: the LED light source is designed with an arc shape, and the outer arc of the LED light source has the same curvature as the outer arc of the frame.

[0008] As a further embodiment of this utility model: the outer edge of the LED light source is on the same arc as the outer edge of the frame.

[0009] As a further embodiment of this utility model: the inner side of the first LED light source is far from the inner side of the frame, and the width of the first LED light source is smaller than the width of the frame.

[0010] As a further embodiment of this utility model: the LED light source can also be a second LED light source, which is disposed at the upper left corner, upper right corner, lower left corner and lower right corner of the frame.

[0011] As a further embodiment of this utility model: the outer edge of the second LED light source is on the same arc as the outer edge of the frame.

[0012] As a further embodiment of this utility model: the inner side of the second LED light source is far from the inner side of the frame, and the width of the second LED light source is smaller than the width of the frame.

[0013] As a further embodiment of this utility model: the LED light source can also be LED light source three, which is circular and arranged around the frame.

[0014] As a further embodiment of this utility model: the outer edge of the LED light source three is on the same arc as the outer edge of the frame.

[0015] As a further embodiment of this utility model: the inner side of the LED light source three is far from the inner side of the frame, and the width of the LED light source three is smaller than the width of the frame.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] The present invention relates to a narrow bezel backlight structure for a liquid crystal display screen. By setting an arc-shaped LED light source on the bezel and making the outer edge of the LED light source and the outer edge of the bezel the same arc, it can meet both the narrow bezel requirements and the light source requirements of the product. It is more suitable for small-sized circular TFTs. Furthermore, this method has higher luminous efficiency, can meet the requirements for brightness and uniformity, and has a lower cost compared to direct-lit backlights. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of Embodiment 3 of this utility model;

[0022] Figure 4 This is a schematic diagram illustrating the dark area generated by the irregularly shaped TFT screen without the use of curved LED light sources in another embodiment;

[0023] Figure 5 This is a schematic diagram of an irregularly shaped TFT screen using an arc-shaped LED light source in another embodiment.

[0024] In the diagram: 1. TFT screen; 2. Display area; 3. Bezel; 4. LED light source one; 5. LED light source two; 6. LED light source three. Detailed Implementation

[0025] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0026] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] Unless otherwise explicitly specified and limited, the terms “installation,” “connection,” “linking,” “fixing,” etc., should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] Example 1, please refer to Figure 1 :

[0030] A narrow bezel backlight structure for a liquid crystal display includes: a TFT screen 1, which is circular; a display area 2, located in the center of the TFT screen 1; a bezel 3, located on the outer side of the TFT screen 1; and an LED light source, which may be an LED light source 4, located at the bottom of one side of the bezel 3. The LED light source 4 has an arc-shaped design, with the outer arc of the LED light source 4 having the same curvature as the outer arc of the bezel 3. The outer arc of the LED light source 4 and the outer arc of the bezel 3 are on the same arc line. The inner edge of the LED light source 4 is far from the inner edge of the bezel 3, and the width of the LED light source 4 is smaller than the width of the bezel 3.

[0031] Specifically, by setting an arc-shaped LED light source 4 on the frame 3, and making the outer edge of the LED light source 4 and the outer edge of the frame 3 on the same arc, the narrow frame requirement of the product can be met, as well as the light source requirement of the product. This method is more suitable for small-sized circular TFTs. Moreover, this method has higher luminous efficiency, can meet the brightness and uniformity requirements, and has a lower cost compared to direct-lit backlighting.

[0032] Example 2, please refer to Figure 2 :

[0033] The LED light source can also be LED light source 25, which is set at the upper left, upper right, lower left and lower right corners of the frame 3; the outer edge of LED light source 25 is on the same arc as the outer edge of the frame 3; the inner edge of LED light source 25 is far away from the inner edge of the frame 3, and the width of LED light source 25 is less than the width of the frame 3.

[0034] Specifically, to meet different usage needs, since the frame 3 is not limited by the placement of LED light sources, multiple LED light sources 2 5 can be set. The LED light sources 2 5 are evenly distributed on the frame 3 to increase brightness and meet uniformity requirements.

[0035] Example 3, please refer to Figure 3 :

[0036] The LED light source can also be LED light source 36, which is circular and set around the frame 3; the outer edge of LED light source 36 is on the same arc as the outer edge of frame 3; the inner edge of LED light source 36 is far away from the inner edge of frame 3, and the width of LED light source 36 is smaller than the width of frame 3.

[0037] Specifically, to meet different usage needs, since the frame 3 is not limited by the placement of the LED light source, a ring-shaped LED light source 6 can also be set. The LED light source 6 is arranged in a ring on the frame 3 to increase brightness and meet uniformity requirements.

[0038] In another embodiment, the above-described solution can also be extended to other irregularly shaped or non-circular products, such as... Figure 4 Irregularly shaped TFT screens will have dark areas when using ordinary LED point light sources, while using... Figure 5 After the curved LED light source is installed, LEDs can be placed in the dark areas to effectively illuminate the dark areas, thereby increasing the brightness and uniformity of the entire irregularly shaped TFT screen.

[0039] In summary, LED light sources can be manufactured into irregularly shaped LEDs to meet the needs of light sources of different shapes.

[0040] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A narrow bezel backlight structure for a liquid crystal display screen, characterized in that, include, TFT screen (1), the TFT screen (1) is circular in structure; Display area (2), which is located in the middle of TFT screen (1); A frame (3) is located on the outside of the TFT screen (1); LED light source, wherein the LED light source may be LED light source one (4), and the LED light source one (4) is disposed at the bottom of one side of the frame (3).

2. The narrow bezel backlight structure for a liquid crystal display screen according to claim 1, characterized in that, The LED light source (4) has an arc-shaped structure design, and the outer arc of the LED light source (4) has the same arc as the outer arc of the frame (3).

3. The narrow bezel backlight structure for a liquid crystal display screen according to claim 1, characterized in that, The outer edge of the LED light source (4) and the outer edge of the frame (3) are on the same arc.

4. The narrow bezel backlight structure for a liquid crystal display screen according to claim 1, characterized in that, The inner side of the LED light source (4) is far from the inner side of the frame (3), and the width of the LED light source (4) is smaller than the width of the frame (3).

5. The narrow bezel backlight structure for a liquid crystal display screen according to claim 1, characterized in that, The LED light source can also be LED light source two (5), which is set at the upper left corner, upper right corner, lower left corner and lower right corner of the frame (3).

6. The narrow bezel backlight structure for a liquid crystal display screen according to claim 5, characterized in that, The outer edge of the second LED light source (5) and the outer edge of the frame (3) are on the same arc.

7. The narrow bezel backlight structure for a liquid crystal display screen according to claim 5, characterized in that, The inner side of the second LED light source (5) is far from the inner side of the frame (3), and the width of the second LED light source (5) is smaller than the width of the frame (3).

8. The narrow bezel backlight structure for a liquid crystal display screen according to claim 1, characterized in that, The LED light source can also be LED light source three (6), which is circular and arranged around the frame (3).

9. A narrow bezel backlight structure for a liquid crystal display screen according to claim 8, characterized in that, The outer edge of the LED light source (6) and the outer edge of the frame (3) are on the same arc.

10. A narrow bezel backlight structure for a liquid crystal display screen according to claim 8, characterized in that, The inner side of the LED light source three (6) is far from the inner side of the frame (3), and the width of the LED light source three (6) is smaller than the width of the frame (3).

Images