An ultra-thin flexible liquid crystal display module

Abstract

This utility model relates to the field of liquid crystal display module technology, and more particularly to an ultra-thin flexible liquid crystal display module, comprising a light source module, flexible ribbon cables, and an illumination component. Flexible ribbon cables are arranged between the light source modules. An illumination component is arranged on the light-emitting side of each light source module. A first flexible substrate is arranged on the light-emitting side of each light source module. A liquid crystal layer is arranged on one side of the first flexible substrate. A color filter is arranged on one side of the liquid crystal layer. A surface polarizing film is arranged on one side of the color filter. This utility model arranges multiple sets of light source modules in an orthogonal array on one side of the liquid crystal layer, and simultaneously connects the multiple sets of light source modules to the display control circuit board via flexible ribbon cables. This allows the light source modules to emit light independently while being bent along with the flexible liquid crystal module. The light source modules can be mass-produced and assembled according to requirements. Replacement is also convenient when a single light source module is damaged, avoiding the high cost and high replacement cost of flexible circuit boards.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal display module technology, and in particular to an ultra-thin flexible liquid crystal display module. Background Technology

[0002] A liquid crystal display (LCD) module is an electronic component used to display images and text. It consists of one or more liquid crystal screens and can display text, images, and other information. The working principle of an LCD module is that the liquid crystal screen is composed of a series of small pixels made up of liquid crystal molecules. Each pixel has an electrode; when a voltage is applied to the electrode, the liquid crystal molecules emit light, thus displaying images and text.

[0003] A liquid crystal display module is generally composed of a liquid crystal panel and a backlight, and is used in conjunction with various optical film layers. In a flexible liquid crystal display module, the original glass substrate and liquid crystal layer in the liquid crystal panel are replaced with a bendable material, and the backlight is also designed with a flexible circuit board and LED beads, so that both the liquid crystal panel and the backlight can be bent within a certain range, thus allowing the screen to be bent and installed on curved screens, pillars and arc display panels.

[0004] The backlights of existing flexible LCD modules use flexible circuit boards. While this allows the backlights to achieve the best bending performance, it also increases production costs. Many installation scenarios do not require very high bending performance; they only need to meet the requirements of flexible installation. This results in a significant performance overrun of the flexible circuit board, leading to waste. Furthermore, the LEDs in the backlight are the most easily damaged components in the LCD module. When the LEDs are damaged, the entire flexible circuit board needs to be replaced, which is costly. In addition, depending on the screen size and aspect ratio, separate production lines are required, further increasing production costs. Utility Model Content

[0005] To overcome the problem that using flexible circuit boards to make LCD modules bendable leads to higher production and maintenance costs.

[0006] The technical solution of this utility model is as follows: an ultra-thin flexible liquid crystal display module, including a light source module, a flexible ribbon cable and an illumination component. The light source module is provided in multiple orthogonal arrays, and a flexible ribbon cable is provided between the light source modules. The multiple light source modules are electrically connected to the screen control unit through the flexible ribbon cable. An illumination component is provided on the light-emitting side of the light source module. A first flexible substrate is provided on the light-emitting side of the light source module. A liquid crystal layer is provided on one side of the first flexible substrate. A color filter is provided on one side of the liquid crystal layer. A surface polarizing film is provided on one side of the color filter.

[0007] As a preferred option, the flexible cabling meanders between multiple light source modules, forming a pathway in the shape of the multiple light source modules.

[0008] Preferably, the liquid crystal layer is made using flexible liquid crystal technology and is bonded to the first flexible substrate and the color filter using a special adhesive for liquid crystal screens.

[0009] Preferably, the first flexible substrate and the second flexible substrate are made of flexible materials. The first flexible substrate is bonded and fixed to the light source module with adhesive, and the second flexible substrate is bonded and fixed to the surface polarizing film with adhesive.

[0010] Preferably, the light source module has surface-mount LEDs on the side closest to the liquid crystal layer, and a ribbon cable groove is provided on the side of the light source module.

[0011] Preferably, the illumination component includes a reflector and a composite optical film layer, with the composite optical film layer disposed on one side of the patch LED and the reflector disposed on the side of the composite optical film layer closer to the light source module.

[0012] Preferably, the reflector shields the portion of the composite optical film layer exposed outside the range of the light source module and the side of the composite optical film layer, which is composed of a polarizing film, a light guiding film, a diffusion film and a prism film.

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

[0014] By separating the original single light panel into independent light source modules, and orthogonally arranging multiple light source modules in an array on one side of the liquid crystal layer, and electrically connecting multiple light source modules to the display control circuit board via flexible cables, the light source modules can emit light independently while being bent together with the flexible first and second flexible substrates and the liquid crystal layer. The light source modules can be mass-produced and assembled according to requirements, and are easy to replace if a single light source module is damaged, avoiding the high cost and high replacement cost of flexible circuit boards. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0016] Figure 2 The diagram shown is a planar structural schematic of this utility model;

[0017] Figure 3 The diagram shown is a three-dimensional exploded structure of this utility model;

[0018] Figure 4 The diagram shown is a planar exploded structure of this utility model.

[0019] Figure 5 The diagram shown is a three-dimensional structural schematic of the illumination component of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 1. Light source module; 101. Reflector; 102. Composite optical film layer; 103. Patch LED bead; 104. Cable tray; 2. Flexible cable; 301. First flexible substrate; 302. Second flexible substrate; 4. Liquid crystal layer; 5. Color filter; 6. Surface polarizing film. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-5 This utility model provides an embodiment of an ultra-thin flexible liquid crystal display module, comprising a light source module 1, a flexible ribbon cable 2, and an illumination component. Multiple light source modules 1 are arranged in an orthogonal array, with flexible ribbon cables 2 connecting them. The multiple light source modules 1 are electrically connected to a screen control unit via the flexible ribbon cables 2. An illumination component is disposed on the light-emitting side of the light source module 1. A first flexible substrate 301 is disposed on the light-emitting side of the light source module 1. A liquid crystal layer 4 is disposed on one side of the first flexible substrate 301, a color filter 5 is disposed on one side of the liquid crystal layer 4, and a surface layer is disposed on one side of the color filter 5. Polarizing film 6; By splitting the original single lamp board into independent light source modules 1, and orthogonally arranging multiple light source modules 1 on one side of the liquid crystal layer 4, and electrically connecting multiple light source modules 1 to the display control circuit board through flexible ribbon cable 2, the light source modules 1 can emit light independently, and can be bent together with the flexible first flexible substrate 301, the second flexible substrate 302 and the liquid crystal layer 4. The light source modules 1 can be mass-produced and assembled according to requirements. It is also easy to replace a single light source module 1 after it is damaged, avoiding the high cost and high replacement cost of flexible circuit boards.

[0023] Please see Figure 1 In this embodiment, the flexible ribbon cable 2 meanders between multiple light source modules 1, so that the multiple light source modules 1 form a path in shape. This connection method uses the light source module 1 as a signal relay, which ensures the signal strength while avoiding the redundancy and excessive length of the wires caused by directly connecting all light source modules 1 to the screen circuit board using the flexible ribbon cable 2.

[0024] Please see Figure 5In this embodiment, the illumination component includes a reflector 101 and a composite optical film layer 102. The composite optical film layer 102 is disposed on one side of the patch LED 103. The reflector 101 is disposed on the side of the composite optical film layer 102 near the light source module 1. The reflector 101 covers the part of the composite optical film layer 102 exposed outside the range of the light source module 1 and the side of the composite optical film layer 102. The composite optical film layer 102 is composed of a polarizing film, a light guiding film, a diffusion film, and a prism film. The ribbon cable groove 104 is used to insert a flexible ribbon cable 2. The reflector 101 reflects and concentrates the light emitted by the patch LED 103, so that all the light is concentrated at the composite optical film layer 102. The composite optical film layer 102 performs light homogenization, direct illumination, and light filtering operations on the light.

[0025] In use, the screen's circuit board is electrically connected to all light source modules 1 via flexible ribbon cables 2, controlling the surface-mount LEDs 103 to emit light. A reflector 101 reflects and concentrates the light emitted by the surface-mount LEDs 103, focusing all the light onto the composite optical film layer 102. The composite optical film layer 102 performs homogenization, direct illumination, and filtering operations on the light. The processed light then enters the liquid crystal layer 4, color filter 5, and surface polarizing film 6 for illumination, thereby enabling the display module to display images. Furthermore, the partitioned arrangement of the light source modules 1 allows the circuit board to individually control each group of light source modules 1. Whether or not the light is on, when the pixel display image in the area of ​​the light source module 1 is black, the surface-mount LEDs 103 of the light source module 1 can be turned off to prevent the black from turning gray due to light, making the black even blacker, improving the contrast and thus improving the visual experience. The reflector 101 can prevent light from entering the composite optical film layer 102 from the side and turning the black gray. After turning off the surface-mount LEDs 103 of the light source module 1, the surface-mount LEDs 103 will no longer generate heat, so that the multiple light source modules 1 can have rest time instead of constantly emitting light, thereby reducing the heat generation of the display module and increasing the service life of the surface-mount LEDs 103.

[0026] Through the above steps, the original single light panel is split into independent light source modules 1, and multiple sets of light source modules 1 are orthogonally arrayed on one side of the liquid crystal layer 4. At the same time, multiple sets of light source modules 1 are electrically connected to the display control circuit board through flexible ribbon cables 2. This allows the light source modules 1 to emit light independently, while also being bent together with the flexible first flexible substrate 301, the second flexible substrate 302, and the liquid crystal layer 4. The light source modules 1 can be mass-produced and assembled according to requirements. It is also easy to replace a single light source module 1 if it is damaged, thus avoiding the high cost and high replacement cost of flexible circuit boards.

Claims

1. An ultra-thin flexible liquid crystal display module, comprising a light source module (1); characterized in that: It also includes a flexible ribbon cable (2) and an illumination component. The light source module (1) is provided with multiple sets arranged in an orthogonal array. The light source modules (1) are provided with flexible ribbon cables (2). The multiple sets of light source modules (1) are electrically connected to the screen control unit through the flexible ribbon cables (2). The light-emitting side of the light source module (1) is provided with an illumination component. The light-emitting side of the light source module (1) is provided with a first flexible substrate (301). A liquid crystal layer (4) is provided on one side of the first flexible substrate (301). A color filter (5) is provided on one side of the liquid crystal layer (4). A surface polarizing film (6) is provided on one side of the color filter (5).

2. The ultra-thin flexible liquid crystal display module according to claim 1, characterized in that: The flexible cabling (2) meanders between multiple light source modules (1), so that the multiple light source modules (1) form a path in shape.

3. The ultra-thin flexible liquid crystal display module according to claim 1, characterized in that: The liquid crystal layer (4) is made using flexible liquid crystal technology and is bonded to the first flexible substrate (301) and the color filter (5) using special adhesive for liquid crystal screens.

4. The ultra-thin flexible liquid crystal display module according to claim 1, characterized in that: The first flexible substrate (301) and the second flexible substrate (302) are made of flexible materials. The first flexible substrate (301) is bonded and fixed to the light source module (1) with adhesive, and the second flexible substrate (302) is bonded and fixed to the surface polarizing film (6) with adhesive.

5. The ultra-thin flexible liquid crystal display module according to claim 1, characterized in that: A surface mount LED (103) is provided on the side of the light source module (1) near the liquid crystal layer (4), and a ribbon cable groove (104) is provided on the side of the light source module (1).

6. The ultra-thin flexible liquid crystal display module according to claim 5, characterized in that: The illumination assembly includes a reflector (101) and a composite optical film (102). The composite optical film (102) is disposed on one side of the patch LED (103), and the reflector (101) is disposed on the side of the composite optical film (102) closer to the light source module (1).

7. The ultra-thin flexible liquid crystal display module according to claim 6, characterized in that: The reflector (101) covers the portion of the composite optical film layer (102) exposed outside the range of the light source module (1) and the side of the composite optical film layer (102). The composite optical film layer (102) is composed of a polarizing film, a light guiding film, a diffusion film and a prism film.

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