A module structure and a display device

Abstract

The present application relates to the field of display technology, and discloses a module structure and a display device, wherein the module structure includes a stacked backlight plate, a display screen and a glass cover plate, and also includes a light guide plate, an LED lamp and a flexible circuit board arranged between the display screen and the glass cover plate, wherein the LED lamp is located on the side of the light guide plate away from the display area, and the LED lamp is electrically connected to the flexible circuit board. The module structure disclosed in the present application, by arranging a light guide plate and an LED lamp between the display screen and the glass cover plate, can not only ensure normal display and no delay in Selfie, but also improve brightness, increase the life of the LED lamp, and reduce power consumption.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a module structure and a display device. Background Art

[0002] Due to space limitations, there is no flash in the surrounding area of ​​the existing mobile phone display screen. When taking selfies in a dark environment, it is impossible to take clear photos. In order to realize the solution of taking selfies in a dark environment, the following fill light technology solutions are currently available: when a person takes a selfie with a mobile phone, he or she triggers a hardware key or touchpad to input a selfie start signal to the mobile phone. The mobile phone's red IR photosensitive device detects the ambient light. If the ambient light is detected to be lower than a, the processor will turn on all the pixels of the display screen to achieve the highest transmittance mode, and then output an instantaneous high current to the backlight LED lamp (twice the normal supply current under extreme conditions) to achieve the brightest white screen on the display screen. The screen light is projected onto the person and the surrounding environment. The selfie starts after the front camera inputs the signal. After the selfie is completed, all settings are reset and the screen returns to the normal display interface.

[0003] However, the above scheme will result in low fill light brightness due to only twice the normal supply current under extreme conditions, shorten the life of the LED lamp due to instantaneous high current, cause high power consumption due to additional supply current, and slow down the selfie speed due to the stimulation of multiple signals. Summary of the invention

[0004] The present invention provides a module structure, which can improve brightness, increase the life of LED lamps and reduce power consumption while ensuring normal display.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a module structure, including a stacked backlight plate, a display screen and a glass cover plate, and also including a light guide plate, an LED lamp and a flexible circuit board arranged between the display screen and the glass cover plate, wherein the LED lamp is located on the side of the light guide plate away from the display area, and the LED lamp is electrically connected to the flexible circuit board.

[0006] The above module structure sets a light guide plate and an LED light on the display screen and the glass cover. On the one hand, the light guide plate and the LED light do not affect the screen-to-body ratio and the normal display. On the other hand, the time-sharing circuit of the LED light is synchronized. When the selfie signal is triggered to sense the ambient light, the LED light is excited with a low current under the condition that fill light is required. After the LED light emits light, the line light source is converted into a surface light source through the light guide plate, and the light is emitted from the glass substrate to illuminate the selfie environment, thereby achieving clear selfie photos. Since the LED light is lit with a low current, for example, the required brightness is 1800nit (three times higher than the original structure), and the power consumption of the LED light will be reduced to one-sixth of the original (the original backlight brightness is 10400nit), and the current is reduced to one-sixth of the original, so the life of the LED light can be increased and the power consumption is low.

[0007] Therefore, the module structure provided in the present application can not only ensure normal display and selfie without delay, but also improve the brightness, increase the life of the LED lamp, and reduce power consumption.

[0008] Preferably, the light guide plate includes a main body and a wedge-shaped portion, the main body is arranged in parallel between the display screen and the glass cover plate, the wedge-shaped portion is located on the side of the main body away from the display area, and the thickness of the wedge-shaped portion gradually decreases along the direction from the wedge-shaped portion to the main body, and the LED lamp is installed on the side of the wedge-shaped portion away from the main body.

[0009] Preferably, the side of the wedge-shaped portion facing the glass cover plate is parallel to the glass cover plate, and the side of the wedge-shaped portion facing the display screen is an inclined surface.

[0010] Preferably, a side of the wedge-shaped portion facing the display screen has a light shielding layer.

[0011] Preferably, the material of the light-shielding layer is black ink.

[0012] Preferably, the thickness of the main body is 0.2-0.3 mm.

[0013] Preferably, the thickness of the side of the wedge-shaped portion on which the LED lamp is mounted is 0.3-0.4 mm, and the distance between the side of the wedge-shaped portion on which the LED lamp is mounted and the boundary of the display area is 0.45 mm.

[0014] Preferably, the light guide plate is bonded between the display screen and the glass cover plate.

[0015] Preferably, the LED lamp comprises a plurality of red LED lamps, a plurality of blue LED lamps and a plurality of green LED lamps, and the red LED lamps, the blue LED lamps and the green LED lamps are electrically connected to the flexible circuit board, respectively.

[0016] Preferably, the flexible circuit board is bonded between the glass cover plate and the light guide plate.

[0017] Preferably, the present invention further provides a display device, comprising any one of the module structures described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the module structure in this application;

[0019] Figure 2 A schematic diagram of the structure of the light guide plate in this application;

[0020] Figure 3 A schematic diagram of a structure of the light guide plate and LED lamp assembly in this application;

[0021] Figure 4 A structural schematic diagram of the light guide plate and the LED lamp assembled with the glass cover in this application;

[0022] Figure 5 A schematic diagram of the structure of an LED lamp in this application;

[0023] Figure 6 This is a schematic diagram of a control signal principle when the LED lamp is used in this application.

[0024] In the figure:

[0025] 1-backlight plate; 2-display screen; 3-glass cover plate; 4-light guide plate; 41-main body; 42-wedge-shaped portion; 421-light shielding layer; 5-LED lamp; 51-red LED lamp; 52-green LED lamp; 53-blue LED lamp; 6-flexible circuit board; 7-transparent optical tape; 8-light strip glue. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Please refer to Figure 1 The present invention provides a module structure, including: a stacked backlight plate 1, a display screen 2 and a glass cover plate 3, and also includes a light guide plate 4, an LED lamp 5 and a flexible circuit board 6 arranged between the display screen 2 and the glass cover plate 3, wherein the LED lamp 5 is located on a side of the light guide plate 4 away from the display area, and the LED lamp 5 is electrically connected to the flexible circuit board 6.

[0028] The module structure is provided with a light guide plate 4 and an LED lamp 5 between the display screen 2 and the glass cover plate 3. On the one hand, since the LED lamp 5 is provided in the non-display area, the light guide plate 4 and the LED lamp 5 do not affect the screen ratio and can display normally. On the other hand, combined with Figure 6 , synchronize the time-sharing circuit of LED lamp 5, when the selfie signal is triggered to sense the ambient light, under the condition of supplementary light, low current excites LED lamp 5, after LED lamp 5 emits light, the line light source is converted into a surface light source through light guide plate 4, and the light is emitted from the glass substrate to illuminate the environment of selfie, so as to achieve clear selfie photos. Since LED lamp 5 is lit with low current, for example, the required brightness is 1800nit (three times higher than the original structure), and the power consumption of LED lamp 5 will be reduced to one-sixth of the original (the original backlight brightness is 10400nit), the current is reduced to one-sixth of the original, so the life of LED lamp 5 can be increased, and the power consumption is low.

[0029] Therefore, the module structure provided by the present invention can not only ensure normal display and Selfie without delay, but also improve brightness, increase the life of LED lamp 5, and reduce power consumption.

[0030] In one embodiment, Figure 2 As shown, the light guide plate 4 comprises a main body 41 and a wedge-shaped portion 42, wherein the main body 41 is arranged parallel to and between the display screen 2 and the glass cover plate 3, the wedge-shaped portion 42 is located at a side of the main body 41 away from the display area, and the thickness of the wedge-shaped portion 42 gradually decreases along the direction from the wedge-shaped portion 42 to the main body 41, wherein the LED lamp 5 is installed at a side of the wedge-shaped portion 42 away from the main body 41. The wedge-shaped structure can increase the light emitting area of ​​the LED lamp 5 and also increase the installation stability of the LED lamp 5 by installing the LED lamp 5 at one end of the wedge-shaped portion 42.

[0031] On this basis, the side of the wedge-shaped portion 42 facing the glass cover plate 3 is parallel to the glass cover plate 3, and the side facing the display screen 2 is an inclined surface, that is, the wedge-shaped portion 42 is an inverted structure. Through the structural design of the inverted light guide plate 4, not only the structural strength can be increased, but also the interference problem of the thickness of the wedge-shaped portion 42 with the overall module structure can be solved, ensuring that the module structure is not affected.

[0032] As an implementation, a light shielding layer 421 is provided on the side of the wedge-shaped portion 42 facing the display screen 2. The light shielding layer 421 can prevent light from being emitted from the side of the wedge-shaped portion 42 toward the display screen 2 and affecting vision, thereby reducing the difficulty of debugging the light effect and improving the surface uniformity of the light. It should be noted that the material of the light shielding layer 421 can be black ink, which is easy to implement and helps to reduce costs.

[0033] Furthermore, based on the structure that the above-mentioned light guide plate 4 includes a main body 41 and a wedge-shaped portion 42, the thickness of the main body 41 is 0.2-0.3 mm. The thickness of the main body 41 is relatively small. While being able to transform the LED lamp 5 from a line light source into a surface light source and emit it out of the glass cover 3, it can also ensure that the thickness of the overall module structure will not increase significantly, which is conducive to the thin design of the module structure.

[0034] On this basis, the thickness of the side of the wedge-shaped portion 42 on which the LED lamp 5 is installed can be 0.3-0.4mm, and the distance between the side of the wedge-shaped portion 42 on which the LED lamp 5 is installed and the boundary of the display area is 0.45mm. This distance can ensure that the installation position of the LED lamp 5 avoids the display area, thereby not affecting the normal display.

[0035] It should be noted that the thickness of the side surface of the wedge-shaped portion 42 on which the LED lamp 5 is mounted can be adapted to the thickness of the LED lamp 5 , thereby better increasing the structural strength and facilitating improving the display effect.

[0036] It should also be noted that if Figure 1 and Figure 3 As shown, the light guide plate 4 can be installed between the display screen 2 and the glass cover plate 3 by bonding, wherein the side of the light guide plate 4 facing the display screen 2 is bonded to the display screen 2 by a transparent optical tape 7, and the side facing the glass cover plate 3 is bonded to the glass cover plate 3 by a transparent optical tape 7. In addition, the flexible circuit board 6 can also be fixed to the side of the glass cover plate 3 facing the display screen 2 by bonding, specifically, it can be fixed to the glass cover plate 3 and the light guide plate 4 by a light bar glue 8, thereby ensuring the temperature resistance of the LED lamp 5.

[0037] Taking the above structure and bonding method as an example, combined with Figure 1 , Figure 3 as well as Figure 4 , specifically describe the manufacturing process of the light guide plate 4 and the LED lamp 5 added in the present application: first, the two sides of the light guide plate 4 are respectively bonded with the transparent optical tape 7, and the LED lamp 5 is assembled with the flexible circuit board 6, and then the LED lamp 5 is fixed to one side of the light guide plate 4 with the light strip glue 8, and then the light guide plate 4 assembly is bonded with the glass cover plate 3, wherein the glass cover plate 3 can be placed at the bottom to ensure the flatness of the bonding, and finally, the bonded glass cover plate 3, light guide plate 4 and LED lamp 5 are bonded with the display screen 2 to complete the assembly.

[0038] In one embodiment, Figure 5As shown, K1, K2 and K3 are negative electrodes, A is positive electrode, and the LED lamp 5 in the present application may include multiple red LED lamps 51, multiple blue LED lamps 53 and multiple green LED lamps 52, and the LED lamps 5 of each color mentioned above are electrically connected to the flexible circuit board 6, and can be controlled by the host to achieve different colors of fill light. For example, blue light fill color can be achieved for people with yellow skin, and yellow light fill color can be achieved for people with white skin.

[0039] Based on the same inventive concept, the present application can also provide a display device, including a module structure as in any embodiment involved in the present application. Since the above-mentioned module structure can improve the brightness of selfie fill light while ensuring normal display, increase the life of LED lamps, and reduce power consumption, the display device in the present application has a good user experience.

[0040] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A module structure, comprising a stacked backlight plate, a display screen and a glass cover plate, characterized in that: It also includes a light guide plate, an LED lamp and a flexible circuit board arranged between the display screen and the glass cover plate, wherein the light guide plate is bonded between the display screen and the glass cover plate by a transparent optical tape, the LED lamp is located on a side of the light guide plate away from the display area, and the LED lamp is electrically connected to the flexible circuit board.

2. The module structure according to claim 1, characterized in that: The light guide plate includes a main body and a wedge-shaped portion, the main body is arranged in parallel between the display screen and the glass cover plate, the wedge-shaped portion is located on the side of the main body away from the display area, and the thickness of the wedge-shaped portion gradually decreases along the direction from the wedge-shaped portion to the main body, and the LED lamp is installed on the side of the wedge-shaped portion away from the main body.

3. The module structure according to claim 2, characterized in that: The side surface of the wedge-shaped portion facing the glass cover plate is parallel to the glass cover plate, and the side surface of the wedge-shaped portion facing the display screen is an inclined surface.

4. The module structure according to claim 3, characterized in that: The side of the wedge-shaped portion facing the display screen is provided with a light shielding layer.

5. The module structure according to claim 4, characterized in that: The material of the light-shielding layer is black ink.

6. The module structure according to claim 2, characterized in that: The thickness of the main body is 0.2-0.3 mm.

7. The module structure according to claim 2, characterized in that: The thickness of the side of the wedge-shaped portion on which the LED lamp is mounted is 0.3-0.4 mm, and the distance between the side of the wedge-shaped portion on which the LED lamp is mounted and the boundary of the display area is 0.45 mm.

8. The module structure according to claim 1, characterized in that: The LED lamp comprises a plurality of red LED lamps, a plurality of blue LED lamps and a plurality of green LED lamps, and the red LED lamps, the blue LED lamps and the green LED lamps are electrically connected to the flexible circuit board respectively.

9. The module structure according to claim 1, characterized in that: The flexible circuit board is bonded between the glass cover plate and the light guide plate.

10. A display device, characterized in that: It comprises a module structure as described in any one of claims 1 to 9.

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