Saturation-adjustable mobile phone backlight assembly

Abstract

The utility model discloses a saturation-adjustable mobile phone backlight assembly which comprises an iron frame, the upper portion of the iron frame is provided with a reflector plate, the upper surface of the reflector plate is provided with a light guide plate, the upper surface of the light guide plate is provided with a diffusion film, the upper surface of the diffusion film is provided with a lower bright enhancement film, and the upper surface of the lower bright enhancement film is provided with a light guide plate. A light enhancement film is arranged on the upper surface of the lower light enhancement film, a shading film is arranged on the upper surface of the upper light enhancement film, a light bar FPC is arranged below the tail portion of the shading film and comprises a front face arrangement face and a back face arrangement face, a plurality of front face LED lamp beads are arranged on the front face arrangement face, and a plurality of back face LED lamp beads are arranged on the back face arrangement face. And a plurality of back LED lamp beads are arranged on the back arrangement surface. According to the mobile phone backlight assembly with the adjustable saturation degree, two groups of LED lamp beads with different color saturation degrees are arranged to provide different color saturation degrees for a display screen, so that the overall color saturation degree of a screen module can be effectively adjusted, and the mobile phone backlight assembly can meet the requirements of different consumers.

Description

Technical Field

[0001] The utility model relates to a backlight component, more specifically, to a mobile phone backlight component with adjustable saturation. Background Art

[0002] Different consumers have different preferences for the color saturation of display screens. Some consumers prefer ordinary color saturation (such as the common 70% NTSC), while some consumers prefer higher color saturation (such as 100% NTSC). In addition to the backlight source, the overall color saturation of the LCD display module is also related to the RGB red, green and blue sub-pixel ink of the CF color filter on the LCD liquid crystal display panel. If the color filter ink is fixed, if you want to adjust the color saturation of the entire LCD display module, you can only adjust the backlight source. At present, when designing the hardware of the electronic equipment display screen in the industry, the overall color saturation of the screen module has been fixed, that is, the LCD CF ink is fixed, and the backlight source only uses a fixed color saturation LED, so the color saturation of the entire LCD display module is fixed and cannot be adjusted.

[0003] Chinese utility model patent document CN208489878U discloses a mobile phone and an LCD display device thereof, comprising a processor and an LCD display device connected to the processor, wherein the LCD display device comprises a display module, wherein the display module comprises a backlight structure and a liquid crystal module arranged on the backlight structure, wherein the backlight structure comprises a plurality of LED light-emitting components and an optically functional film, wherein the liquid crystal module comprises an upper substrate and an upper polarizer arranged on the upper substrate, wherein a color filter is arranged on a side of the upper substrate close to the upper polarizer, and wherein the LED light-emitting component comprises an LED chip and an encapsulation adhesive layer containing green inorganic phosphor arranged on the LED chip; wherein the color filter comprises a blue filter film, a green filter film and a red filter film, wherein a side of the red filter film close to the upper substrate is coated with a red light organic fluorescent conversion material.

[0004] Obviously, this patent uses color filters to achieve high color saturation, which cannot solve the existing problem that the saturation cannot be adjusted. Utility Model Content

[0005] Based on this, it is necessary to provide a saturation-adjustable mobile phone backlight assembly for the above technical problems. The saturation-adjustable mobile phone backlight assembly comprises an iron frame, a reflective sheet is provided on the upper part of the iron frame, a light guide plate is provided on the upper surface of the reflective sheet, a diffusion film is provided on the upper surface of the light guide plate, a lower light-enhancing film is provided on the upper surface of the diffusion film, a light-enhancing film is provided on the upper surface of the lower light-enhancing film, a light-shielding film is provided on the upper surface of the upper light-enhancing film, a light-strip FPC is provided below the tail of the light-shielding film, and the light-strip FPC comprises a front arrangement surface and a back arrangement surface, a plurality of front LED lamp beads are provided on the front arrangement surface, and a plurality of back LED lamp beads are provided on the back arrangement surface. The saturation-adjustable mobile phone backlight assembly provides different color saturation effects for the display screen by setting two groups of LED lamp beads with different color saturations, so that the overall color saturation of the screen module can be effectively adjusted, which can adapt to the needs of different consumers and improve the competitiveness of the product. In addition, even if one group of LED lamp beads fails, the other group of LED lamp beads can continue to provide backlight illumination, thereby improving the reliability and durability of the screen module.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A mobile phone backlight assembly with adjustable saturation, characterized in that the mobile phone backlight assembly with adjustable saturation comprises an iron frame, a reflective sheet is provided on the upper part of the iron frame, a light guide plate is provided on the upper surface of the reflective sheet, a diffusion film is provided on the upper surface of the light guide plate, a lower light-enhancing film is provided on the upper surface of the diffusion film, a light-enhancing film is provided on the upper surface of the lower light-enhancing film, a light-shielding film is provided on the upper surface of the upper light-enhancing film, a light bar FPC is provided below the tail of the light-shielding film, the light bar FPC comprises a front arrangement surface and a back arrangement surface, a plurality of front LED lamp beads are provided on the front arrangement surface, a plurality of back LED lamp beads are provided on the back arrangement surface, the light-emitting surfaces of the front LED lamp beads and the back LED lamp beads are both facing the light guide plate, and the light-emitting surfaces of the front LED lamp beads and the back LED lamp beads are parallel to and in contact with the light guide plate.

[0008] As a preferred implementation of the saturation-adjustable mobile phone backlight assembly provided by the utility model, the lower surface of the light bar FPC is bonded and connected to the upper surface of the light guide plate by means of a single-sided adhesive of the light bar FPC.

[0009] As a preferred implementation of the saturation-adjustable mobile phone backlight assembly provided by the utility model, a plastic shell is provided between the light bar FPC and the iron frame.

[0010] As a preferred implementation of the saturation-adjustable mobile phone backlight assembly provided by the utility model, the front LED lamp beads are LEDs with high color saturation, and the back LED lamp beads are LEDs with ordinary color saturation.

[0011] As a preferred implementation of the saturation-adjustable mobile phone backlight assembly provided by the utility model, the number of the front LED lamp beads is the same as the back LED lamp beads, and the number of the front LED lamp beads and the back LED lamp beads are both even numbers.

[0012] As a preferred implementation of the saturation-adjustable mobile phone backlight assembly provided by the utility model, the sum of the thicknesses of the light strip FPC, the front LED lamp beads and the back LED lamp beads is consistent with the light guide plate.

[0013] As a preferred implementation of the saturation-adjustable mobile phone backlight assembly provided by the utility model, the front LED lamp beads are symmetrically arranged on the front layout surface, and the back LED lamp beads are symmetrically arranged on the back layout surface.

[0014] As a preferred implementation of the saturation-adjustable mobile phone backlight assembly provided by the utility model, a white covering film is applied on both the front arrangement surface and the back arrangement surface.

[0015] As a preferred implementation of the saturation-adjustable mobile phone backlight assembly provided by the utility model, the thickness of the white covering film is between 0.03 mm and 0.08 mm.

[0016] As a preferred implementation of the saturation-adjustable mobile phone backlight assembly provided by the utility model, the thickness of the white covering film is 0.05 mm.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a saturation-adjustable mobile phone backlight assembly, which provides different color saturation effects for the display screen by setting two groups of LED lamp beads with different color saturations, so that the overall color saturation of the screen module can be effectively adjusted, which can meet the needs of different consumers and improve the competitiveness of the product. In addition, even if one group of LED lamp beads fails, the other group of LED lamp beads can continue to provide backlight illumination, thereby improving the reliability and durability of the screen module.

[0019] In addition, the number of the front LED lamp beads can be the same as the back LED lamp beads, and the number of the front LED lamp beads and the back LED lamp beads are both even numbers. The sum of the thickness of the light bar FPC, the front LED lamp beads, and the back LED lamp beads is consistent with the light guide plate. The front LED lamp beads are symmetrically arranged on the front layout surface, and the back LED lamp beads are symmetrically arranged on the back layout surface. Since the sum of the thickness of the light bar FPC, the front LED lamp beads, and the back LED lamp beads is consistent with the light guide plate, the light source of the LED lamp beads can be effectively utilized, and neither waste of light energy nor light leakage will be caused. Since the front LED lamp beads and the back LED lamp beads are symmetrically arranged on the light bar FPC, the uniformity and consistency of the backlight can be effectively provided.

[0020] In addition, a white covering film can be applied to both the front and back surfaces. The thickness of the white covering film is between 0.03 mm and 0.08 mm. The thickness of the white covering film is 0.05 mm. The white covering film can effectively improve the luminous effect of the front LED lamp beads and the back LED lamp beads, thereby improving the utilization rate of the backlight. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 This is a schematic diagram of the hierarchical structure of the saturation-adjustable mobile phone backlight assembly of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the light bar FPC of the mobile phone backlight assembly with adjustable saturation, showing the front side of the light bar FPC;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the light bar FPC of the mobile phone backlight assembly with adjustable saturation, in which the reverse side of the light bar FPC is shown;

[0025] Figure 4 for Figure 1 The circuit connection diagram of the light bar FPC of the mobile phone backlight assembly with adjustable saturation, showing the front side at this time;

[0026] Figure 5 for Figure 1 The circuit connection diagram of the light bar FPC of the mobile phone backlight assembly with adjustable saturation, showing the back side at this time;

[0027] The markings in the figure are as follows: 1. Plastic shell; 11. Light strip FPC; 111. Front layout surface; 1111. Front LED lamp beads; 112. Back layout surface; 1121. Back LED lamp beads; 2. Iron frame; 3. Light guide plate; 4. Reflective sheet; 5. Diffusion film; 6. Lower light enhancement film; 7. Upper light enhancement film; 8. Shading film; 9. Light strip FPC single-sided adhesive; S. White covering film. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0029] As described in the background technology, in the prior art, for the display screen of a mobile phone, different consumers have different preferences for the color saturation of the display screen. Some consumers like ordinary color saturation (such as the common 70% NTSC), and some consumers like higher color saturation (such as 100% NTSC). In addition to being related to the backlight source, the overall color saturation of the liquid crystal display module is also related to the RGB red, green, and blue sub-pixel ink of the CF color filter on the LCD liquid crystal display panel. If the color filter ink is fixed, if you want to adjust the color saturation of the entire liquid crystal display module, you can only adjust the backlight source. At present, when designing the hardware of the electronic device display screen in the industry, the overall color saturation of the screen module has been fixed, that is, the LCD CF ink is fixed, and the backlight source only uses an LED with a fixed color saturation, so the color saturation of the entire liquid crystal display module is fixed and cannot be adjusted.

[0030] In order to solve this technical problem, the utility model provides a mobile phone backlight assembly with adjustable saturation, comprising an iron frame 2, a reflective sheet 4 is provided on the upper part of the iron frame 2, a light guide plate 3 is provided on the upper surface of the reflective sheet 4, a diffusion film 5 is provided on the upper surface of the light guide plate 3, a lower light enhancement film 6 is provided on the upper surface of the diffusion film 5, a light enhancement film 7 is provided on the upper surface of the lower light enhancement film 6, a light shielding film 8 is provided on the upper surface of the upper light enhancement film 7, a light bar FPC 11 is provided below the tail of the light shielding film 8, the light bar FPC 11 comprises a front arrangement surface 111 and a back arrangement surface 112, a plurality of front LED lamp beads 1111 are provided on the front arrangement surface 111, and a plurality of back LED lamp beads 1121 are provided on the back arrangement surface 112. The front LED lamp beads 1111 are LEDs with high color saturation, and the back LED lamp beads 1121 are LEDs with ordinary color saturation.

[0031] Through the above structural design, the saturation-adjustable mobile phone backlight assembly provides different color saturation effects for the display screen by setting two groups of LED lamp beads with different color saturations, so that the overall color saturation of the screen module can be effectively adjusted, which can adapt to the needs of different consumers and improve the competitiveness of the product. In addition, even if one group of LED lamp beads fails, the other group of LED lamp beads can continue to provide backlighting, improving the reliability and durability of the screen module.

[0032] In order to enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0034] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0035] Example 1

[0036] like Figure 1 , Figure 2 and Figure 3As shown, the saturation-adjustable mobile phone backlight assembly includes an iron frame 2, a reflective sheet 4 is provided on the upper portion of the iron frame 2, a light guide plate 3 is provided on the upper surface of the reflective sheet 4, a diffusion film 5 is provided on the upper surface of the light guide plate 3, a lower light-enhancing film 6 is provided on the upper surface of the diffusion film 5, a light-enhancing film 7 is provided on the upper surface of the lower light-enhancing film 6, a light-shielding film 8 is provided on the upper surface of the upper light-enhancing film 7, a light-shielding film 8 is provided below the tail of the light-shielding film 8, and a light bar FPC11 is provided below the tail of the light-shielding film 8, and the light bar FPC11 includes a front arrangement surface 111 and a back arrangement surface 112, a plurality of front LED lamp beads 1111 are provided on the front arrangement surface 111, and a plurality of back LED lamp beads 1121 are provided on the back arrangement surface 112.

[0037] In addition, the light-emitting surfaces of the front LED lamp bead 1111 and the back LED lamp bead 1121 are both facing the light guide plate 3, and the light-emitting surfaces of the front LED lamp bead 1111 and the back LED lamp bead 1121 are parallel to and in contact with the light guide plate 3.

[0038] It should be noted that the lower surface of the light bar FPC 11 is bonded and connected to the upper surface of the light guide plate 3 via the light bar FPC single-sided adhesive 9 .

[0039] In addition, a plastic shell 1 is disposed between the light bar FPC 11 and the iron frame 2 .

[0040] In addition, the front LED lamp bead 1111 is an LED with high color saturation, and the back LED lamp bead 1121 is an LED with ordinary color saturation.

[0041] The working mode of this embodiment is described below.

[0042] like Figure 4 and Figure 5 As shown, the control circuits of the front LED lamp beads 1111 and the back LED lamp beads 1121 of the light strip FPC11 are independent of each other, and the LEDs on each side are connected in series first and then in parallel, and each has a positive electrode and a negative electrode interface.

[0043] When all the front LED lamp beads 1111 are working normally, all the back LED lamp beads 1121 are turned off. At this time, the front LED lamp beads 1111 provide a lighting effect with high color saturation.

[0044] When all the back LED lamp beads 1121 are working normally, all the front LED lamp beads 1111 are turned off. At this time, the back LED lamp beads 1121 provide a lighting effect with normal color saturation.

[0045] It should be noted that under the same driving current, the white CIE color coordinates and brightness value at the center of the backlight emitting surface should be very close, which can be adjusted by adjusting the LED color block and brightness level.

[0046] The control circuits of the front LED lamp bead 1111 and the back LED lamp bead 1121 both use an operating voltage of 2.7 to 2.9 V and a maximum operating current of 20 mA, requiring a maximum drive current of 40 mA for each LED (two circuits in parallel).

[0047] The saturation-adjustable mobile phone backlight assembly provides different color saturation effects for the display screen by setting two groups of LED lamp beads with different color saturations, so that the overall color saturation of the screen module can be effectively adjusted, which can meet the needs of different consumers and improve the competitiveness of the product. In addition, even if one group of LED lamp beads fails, the other group of LED lamp beads can continue to provide backlighting, improving the reliability and durability of the screen module.

[0048] Example 2

[0049] The saturation-adjustable mobile phone backlight assembly provided in Example 1 is further optimized. Specifically, the number of the front LED lamp beads 1111 is the same as the number of the back LED lamp beads 1121, and the number of the front LED lamp beads 1111 and the number of the back LED lamp beads 1121 are both even numbers.

[0050] The sum of the thicknesses of the light strip FPC11 , the front LED lamp beads 1111 , and the back LED lamp beads 1121 is consistent with that of the light guide plate 3 .

[0051] It should be noted that the front LED lamp beads 1111 are symmetrically arranged on the front arrangement surface 111 , and the back LED lamp beads 1121 are symmetrically arranged on the back arrangement surface 112 .

[0052] The working mode of this embodiment is described below.

[0053] Since the sum of the thickness of the light bar FPC11, the front LED lamp beads 1111 and the back LED lamp beads 1121 is consistent with the light guide plate 3, the light source of the LED lamp beads can be effectively utilized, and neither light energy is wasted nor light leakage is caused. Since the front LED lamp beads 1111 and the back LED lamp beads 1121 are symmetrically arranged on the light bar FPC11, the uniformity and consistency of the backlight can be effectively provided.

[0054] Example 3

[0055] The saturation-adjustable mobile phone backlight assembly provided in Example 1 or 2 is further optimized. Specifically, a white covering film S is applied to both the front arrangement surface 111 and the back arrangement surface 112 .

[0056] It should be noted that the thickness of the white covering film S is between 0.03 mm and 0.08 mm. Preferably, the thickness of the white covering film S is 0.05 mm.

[0057] The working mode of this embodiment is described below.

[0058] By using the white covering film S, the luminous effects of the front LED lamp beads 1111 and the back LED lamp beads 1121 can be effectively improved, thereby improving the utilization rate of the backlight.

[0059] The terms "coupling" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, they may refer to a direct physical connection, or an indirect connection achieved through electronic devices, such as a connection achieved through resistors, inductors, capacitors or other electronic devices.

[0060] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0061] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A mobile phone backlight assembly with adjustable saturation, characterized in that: The saturation-adjustable mobile phone backlight assembly comprises an iron frame (2), a reflective sheet (4) is provided on the upper part of the iron frame (2), a light guide plate (3) is provided on the upper surface of the reflective sheet (4), a diffusion film (5) is provided on the upper surface of the light guide plate (3), a lower light-enhancing film (6) is provided on the upper surface of the diffusion film (5), an upper light-enhancing film (7) is provided on the upper surface of the lower light-enhancing film (6), a light-shielding film (8) is provided on the upper surface of the upper light-enhancing film (7), a light strip FPC (11) is provided below the tail of the light-shielding film (8), and the light strip The FPC (11) comprises a front arrangement surface (111) and a back arrangement surface (112); a plurality of front LED lamp beads (1111) are arranged on the front arrangement surface (111); a plurality of back LED lamp beads (1121) are arranged on the back arrangement surface (112); the light-emitting surfaces of the front LED lamp beads (1111) and the back LED lamp beads (1121) are both oriented toward the light guide plate (3); and the light-emitting surfaces of the front LED lamp beads (1111) and the back LED lamp beads (1121) are parallel to and in contact with the light guide plate (3).

2. The saturation-adjustable mobile phone backlight assembly according to claim 1, characterized in that: The lower surface of the light bar FPC (11) is bonded and connected to the upper surface of the light guide plate (3) via the light bar FPC single-sided adhesive (9).

3. The saturation-adjustable mobile phone backlight assembly according to claim 1, characterized in that: A plastic shell (1) is provided between the light bar FPC (11) and the iron frame (2).

4. The saturation-adjustable mobile phone backlight assembly according to claim 1, characterized in that: The front LED lamp bead (1111) is an LED with high color saturation, and the back LED lamp bead (1121) is an LED with ordinary color saturation.

5. The saturation-adjustable mobile phone backlight assembly according to claim 4, characterized in that: The number of the front LED lamp beads (1111) is the same as the number of the rear LED lamp beads (1121), and the number of the front LED lamp beads (1111) and the number of the rear LED lamp beads (1121) are both even numbers.

6. The saturation-adjustable mobile phone backlight assembly according to claim 4, characterized in that: The sum of the thicknesses of the light bar FPC (11), the front LED lamp beads (1111) and the back LED lamp beads (1121) is consistent with that of the light guide plate (3).

7. The saturation-adjustable mobile phone backlight assembly according to claim 4, characterized in that: The front LED lamp beads (1111) are symmetrically arranged on the front arrangement surface (111), and the back LED lamp beads (1121) are symmetrically arranged on the back arrangement surface (112).

8. The saturation-adjustable mobile phone backlight assembly according to claim 1, characterized in that: The front arrangement surface (111) and the back arrangement surface (112) are both affixed with a white covering film (S).

9. The saturation-adjustable mobile phone backlight assembly according to claim 8, characterized in that: The thickness of the white covering film (S) is between 0.03 mm and 0.08 mm.

10. The saturation-adjustable mobile phone backlight assembly according to claim 9, characterized in that: The thickness of the white covering film (S) is 0.05 mm.

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