Liquid crystal display screen capable of automatically adjusting brightness and mobile terminal with same

Abstract

The utility model provides a liquid crystal display screen capable of automatically adjusting brightness and a mobile terminal with the liquid crystal display screen. The liquid crystal display screen comprises a touch module, a liquid crystal display screen and a liquid crystal display screen, the glass module comprises liquid crystal display glass; the backlight module is provided with a light hole which penetrates through part of the backlight module from inside to outside; the display FPC is connected with the liquid crystal display glass, the display FPC is connected with a light sensor, and the light sensor is attached to the inner side of the backlight module and corresponds to the light hole. According to the technical scheme provided by the embodiment of the invention, the influence on the display effect can be reduced while the effectiveness of light sensation automatic brightness adjustment is ensured.

Description

Technical Field

[0001] This disclosure belongs to the field of liquid crystal display technology, and in particular relates to a liquid crystal display screen with automatic brightness adjustment and a mobile terminal having the same. Background Technology

[0002] TFT LCD screens are widely used in many fields, providing a more intuitive and vivid way to display information. With technological advancements, TFT LCD screens have developed the ability to adapt to different ambient light conditions, meaning they can automatically adjust their brightness based on the surrounding light. Current solutions often involve creating openings or integrating light sensors into the display FPC at specific locations to achieve automatic brightness adjustment. However, these methods still face limitations in the location and size of these openings, which can easily affect the display's performance. Therefore, minimizing the impact on display quality while ensuring the effectiveness of automatic brightness adjustment has become a pressing technical challenge. Utility Model Content

[0003] The present invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the purpose of this invention is to provide an automatically adjustable brightness liquid crystal display screen and a mobile terminal having the same, so as to ensure the effectiveness of automatic brightness adjustment based on light sensitivity while minimizing the impact on display quality.

[0004] According to one aspect of the embodiments of this application, an automatically brightness-adjustable liquid crystal display screen is provided, comprising, arranged sequentially from the outside in:

[0005] Touch module;

[0006] A glass module, comprising a liquid crystal display glass;

[0007] A backlight module, wherein the backlight module has a light-transmitting hole that penetrates from the inside out of the backlight module;

[0008] The display FPC is connected to the liquid crystal display glass. The display FPC is connected to a light sensor, which is attached to the inner side of the backlight module and is arranged corresponding to the light-transmitting hole.

[0009] The automatically brightness-adjustable liquid crystal display screen provided in the embodiments of this application includes a touch module, a glass module, a backlight module, and a display FPC. The glass module includes a liquid crystal display glass. The backlight module has a light-transmitting hole that penetrates a portion of the backlight module from the inside out. The display FPC is connected to the liquid crystal display glass and is connected to a light sensor. The light sensor is attached to the inner side of the backlight module and is correspondingly positioned with respect to the light-transmitting hole. Therefore, by providing a light-transmitting hole on the backlight module and attaching the light sensor to the inner side of the backlight module corresponding to the light-transmitting hole, the ambient light intensity can be detected more accurately, thereby achieving more precise automatic brightness adjustment. This provides the best visual experience for users in both strong and weak light environments. Furthermore, light can be captured at any position within the effective display area (AA area) of the display screen, avoiding the impact of openings or blind holes on the display effect. It also reduces the obstruction of the display screen by the light sensor, improving the overall performance of the display screen.

[0010] In addition, the automatically brightness-adjustable liquid crystal display screen proposed in the above embodiments of this utility model may also have the following additional technical features:

[0011] Optionally, the light-transmitting hole is located on the backlight module at any position corresponding to the effective display area of ​​the liquid crystal display glass.

[0012] Optionally, the backlight module includes a brightness enhancement film, a diffusion film, a light guide plate, a reflective film, and a bonding plate arranged sequentially from the outside to the inside; the light-transmitting hole penetrates at least the bonding plate and the reflective film, and the light sensor is attached to the inner side of the bonding plate and is arranged corresponding to the light-transmitting hole.

[0013] Optionally, the cross-sectional shape of the light-transmitting hole can be any one of a circle, rectangle, rhombus, or regular polygon.

[0014] Optionally, the touch module includes a cover glass, a touch sensing layer, and an optical adhesive layer arranged sequentially from the outside to the inside, and the touch sensing layer is connected to a touch FPC.

[0015] Optionally, the glass module further includes an upper polarizer disposed on the outer side of the liquid crystal display glass and a lower polarizer disposed on the inner side of the liquid crystal display glass, and the liquid crystal display glass is connected to a driver IC.

[0016] This utility model embodiment also provides a mobile terminal, which includes a liquid crystal display screen as described in any of the above embodiments. Attached Figure Description

[0017] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.

[0018] Figure 1 This is a schematic diagram of the structure of an automatically brightness-adjustable liquid crystal display screen according to an embodiment of the present disclosure.

[0019] Explanation of reference numerals in the attached figures

[0020] Touch module 100, cover glass 110, touch sensing layer 120, touch FPC 121, optical adhesive layer 130, glass module 200, liquid crystal display glass 210, driver IC 211, upper polarizer 220, lower polarizer 230, backlight module 300, brightness enhancement film 310, upper brightness enhancement film 311, lower brightness enhancement film 312, diffusion film 320, light guide plate 330, reflective film 340, adhesive iron 350, light-shielding adhesive layer 360, display FPC 400, light sensor 410. Detailed Implementation

[0021] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the disclosure. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present disclosure are shown in the accompanying drawings.

[0022] It should be noted that, where there is no conflict, the embodiments and features described in this disclosure can be combined with each other. The technical solutions of this disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] Unless otherwise stated, the exemplary implementations / embodiments shown are to be understood as providing exemplary features of various details that provide ways in which the technical concepts of this disclosure can be implemented in practice. Therefore, unless otherwise stated, the features of various implementations / embodiments may be additionally combined, separated, interchanged and / or rearranged without departing from the technical concepts of this disclosure.

[0024] The use of crosshairs and / or shading in the accompanying drawings is generally used to clarify the boundaries between adjacent components. Thus, unless otherwise stated, the presence or absence of crosshairs or shading does not convey or indicate any preference or requirement for the specific material, material properties, dimensions, proportions, commonalities between the illustrated components, or any other characteristics, properties, etc., of the components. Furthermore, in the accompanying drawings, the dimensions and relative dimensions of components may be exaggerated for clarity and / or descriptive purposes. When exemplary embodiments can be implemented differently, a specific process sequence may be performed in a different order than that described. For example, two consecutively described processes may be performed substantially simultaneously or in the reverse order of their description. Furthermore, the same reference numerals denote the same components.

[0025] When a component is referred to as being "on" or "above" another component, "connected to," or "joined to" another component, the component may be directly on, directly connected to, or directly joined to the other component, or there may be intermediate components. However, when a component is referred to as being "directly on" another component, "directly connected to," or "directly joined to" another component, there are no intermediate components. Therefore, the term "connection" can refer to a physical connection, an electrical connection, etc., and may or may not have intermediate components.

[0026] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” another component or feature would subsequently be positioned “above” said other component or feature. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.

[0027] The terminology used herein is for the purpose of describing particular embodiments and is not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms “a” and “the” are intended to include the plural forms as well. Furthermore, when the terms “comprising” and / or “including” and variations thereof are used in this specification, it indicates the presence of the stated features, integrals, steps, operations, parts, components, and / or groups thereof, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, parts, components, and / or groups thereof. It should also be noted that, as used herein, the terms “substantially,” “about,” and other similar terms are used as approximate terms rather than as terms of degree, thus explaining the inherent biases in measurements, calculated values, and / or provided values ​​that would be recognized by one of ordinary skill in the art.

[0028] Please refer to Figure 1 This utility model embodiment provides an automatically adjustable brightness liquid crystal display screen, which includes a touch module 100, a glass module 200, a backlight module 300, and a display FPC 400 arranged sequentially from the outside to the inside. It should be noted that "from the outside to the inside" in this application means the direction from the outside (closest to the user or external environment) to the inside (closest to the device core or internal components).

[0029] Specifically, the touch module 100 is used to realize the touch interaction function of the display screen. The glass module 200 includes a liquid crystal display glass 210 for displaying images. The backlight module 300 provides a light source for the display screen and has a light-transmitting hole that penetrates a portion of the backlight module 300 from the inside out. The display FPC 400 (Flexible Printed Circuit) is connected to the liquid crystal display glass 210 to transmit display signals and power signals. Furthermore, the display FPC 400 also integrates a light sensor 410, which is attached to the inner side of the backlight module 300 and corresponding to the light-transmitting hole. That is, after the display FPC 400 is connected to the liquid crystal display glass 210, it is bent from one side of the backlight module 300 to the inner side of the backlight module 300, and the light sensor 410 is attached to the inner side of the backlight module 300 and corresponding to the light-transmitting hole.

[0030] In actual use, natural light and external lights illuminate the AA area of ​​the display screen. The light passes through the liquid crystal display glass 210, the brightness enhancement film, the diffusion film 320, and the light guide plate 330 and is sensed by the light sensor 410. After the light is sensed in the light sensor 410, it is processed by the ADC to convert the analog signal into a digital signal. The logic module (which mainly consists of registers) then processes the signal and outputs it to the main control terminal through the IIC. The main control terminal reads the digital signal value from the IIC and calculates the current that needs to be supplied to the screen backlight, thereby controlling the overall brightness of the screen.

[0031] In this way, the light sensor 410 can directly sense the ambient light passing through the light-transmitting hole, thereby realizing the function of automatically adjusting the screen brightness of the display. Furthermore, by placing the light sensor 410 inside the backlight module 300, interference from the external environment can be avoided, improving the accuracy and stability of the light sensor 410.

[0032] Furthermore, based on the above settings, light can be captured at any position within the effective display area (AA area) of the display screen, avoiding the impact of openings or blind holes on the display effect, while reducing the obstruction of the display screen by the light sensor 410, thus improving the overall performance of the display screen.

[0033] In one embodiment of this utility model, the light-transmitting hole is located on the backlight module 300 at any position corresponding to the effective display area of ​​the liquid crystal display glass 210. That is, the technical solution of this application does not impose a fixed limitation on the location of the light-transmitting hole; the light-transmitting hole can be located on the backlight module 300 at any position corresponding to the effective display area of ​​the liquid crystal display glass 210, allowing the light sensor 410 to directly sense ambient light. This design not only improves the sensing accuracy of the light sensor 410 but also reduces the impact on the effective display area of ​​the screen. By placing the light-transmitting hole within the effective display area, the impact on the appearance of the screen is avoided, while simultaneously improving the sensing accuracy of the light sensor 410 and providing good heat dissipation performance, which helps to improve the lifespan and stability of the screen.

[0034] Please refer to Figure 1In one embodiment, the backlight module 300 includes a brightness enhancement film 310, a diffusion film 320, a light guide plate 330, a reflective film 340, and a glue frame 350 arranged sequentially from the outside to the inside. The brightness enhancement film 310 is used to improve the brightness and directionality of the backlight module 300. In one example, the brightness enhancement film 310 includes an upper brightness enhancement film 311 and a lower brightness enhancement film 312 arranged sequentially from the outside to the inside. The diffusion film 320 is used to distribute light more evenly in all directions, reducing light non-uniformity and improving display quality. The light guide plate 330 is used to evenly diffuse the light emitted by the light source to the entire display screen area. The reflective film 340 is used to reflect light back to the display screen, improving light utilization. The glue frame 350 includes a glue frame and a metal frame, which mainly serve to support, fix, and protect the backlight module.

[0035] The light-transmitting hole penetrates at least the adhesive plate 350 and the reflective film 340. The light sensor 410 is attached to the inner side of the adhesive plate 350 and is positioned corresponding to the light-transmitting hole. This allows the light sensor 410 to directly sense the light passing through the light-transmitting hole, thus improving the sensing accuracy of the light sensor 410 and reducing its impact on the effective display area of ​​the screen. By placing the light-transmitting hole inside the backlight module 300, interference from the external environment is avoided, improving the accuracy and stability of the light sensor 410. Furthermore, it provides good heat dissipation, contributing to a longer lifespan and greater stability of the display screen.

[0036] In one example, the backlight module 300 also includes a light-shielding adhesive layer 360 disposed on the outside of the upper brightness enhancement film 310 to prevent light leakage and reduce optical interference.

[0037] In one embodiment of this utility model, the cross-sectional shape of the light-transmitting hole can be any shape. In one example, the cross-sectional shape of the light-transmitting hole can be any one of a circle, rectangle, rhombus, or regular polygon, and this application does not impose any special limitation on it. It should be noted that the cross-sectional shape of the light-transmitting hole is sufficient to enable the light sensor 410 to uniformly sense the light passing through the light-transmitting hole.

[0038] Furthermore, the size of the light-transmitting hole is not limited to a fixed size. Those skilled in the art can adjust it according to the size of the pixels to minimize the impact on the display effect. For example, if the size of a pixel is 0.2*0.2mm, then the size of the light-transmitting hole can be 0.2*0.2mm to minimize the impact of the light-transmitting hole on the display effect.

[0039] Please refer to Figure 1In one embodiment of this invention, the touch module 100 includes a cover glass 110, a touch sensing layer 120, and an optically clear adhesive layer 130 (OCA) arranged sequentially from the outside in. The touch sensing layer 120 is connected to a touch FPC 121 for transmitting touch signals. This enables the touch module 100 to achieve high-precision touch interaction while improving its reliability and durability. By placing the touch sensing layer 120 between the cover glass 110 and the optically clear adhesive layer 130, interference from the external environment is avoided, improving the accuracy and stability of the touch sensing layer 120.

[0040] In one embodiment of this utility model, the glass module 200 further includes an upper polarizer 220 disposed on the outer side of the liquid crystal display glass 210 and a lower polarizer 230 disposed on the inner side of the liquid crystal display glass 210. The upper polarizer 220 and the lower polarizer 230 are used to control the polarization direction of light, thereby realizing image display. Through the above arrangement, not only is the contrast and clarity of the display screen improved, but the interference of external light on the display screen is also reduced. Furthermore, the liquid crystal display glass 210 is connected to a driver IC 211. Thus, the liquid crystal display glass 210 is connected to the motherboard of the mobile terminal through the display FPC 400. The main control IC and driver IC 211 on the motherboard of the mobile terminal can establish signal and command transmission and reception, thereby controlling the display screen and display effect of the liquid crystal display glass 210.

[0041] In some embodiments of this utility model, a mobile terminal is also provided, which includes a liquid crystal display screen as described in any of the foregoing embodiments. Based on the configuration of this liquid crystal display screen, not only is the display effect of the mobile terminal improved, but the impact on the appearance of the mobile terminal is also reduced. It should be noted that the mobile terminal may include, but is not limited to, one or more of smartphones, tablet computers, laptops, desktop computers, and wearable devices.

[0042] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.

[0043] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. A liquid crystal display screen with automatic brightness adjustment, characterized in that, Including those set from the outside in: Touch module; A glass module, comprising a liquid crystal display glass; A backlight module, wherein the backlight module has a light-transmitting hole that penetrates from the inside out of the backlight module; The display FPC is connected to the liquid crystal display glass. The display FPC is connected to a light sensor, which is attached to the inner side of the backlight module and is arranged corresponding to the light-transmitting hole.

2. The liquid crystal display screen according to claim 1, characterized in that, The light-transmitting hole is located on the backlight module at any position corresponding to the effective display area of ​​the liquid crystal display glass.

3. The liquid crystal display screen according to claim 2, characterized in that, The backlight module includes a light enhancement film, a diffusion film, a light guide plate, a reflective film, and a bonding plate arranged sequentially from the outside to the inside; the light-transmitting hole penetrates at least the bonding plate and the reflective film, and the light sensor is attached to the inner side of the bonding plate and is arranged corresponding to the light-transmitting hole.

4. The liquid crystal display screen according to claim 2, characterized in that, The cross-sectional shape of the light-transmitting hole can be any one of a circle, rectangle, rhombus, or regular polygon.

5. The liquid crystal display screen according to any one of claims 1-4, characterized in that, The touch module includes a cover glass, a touch sensing layer, and an optical adhesive layer arranged sequentially from the outside to the inside, and the touch sensing layer is connected to a touch FPC.

6. The liquid crystal display screen according to any one of claims 1-4, characterized in that, The glass module further includes an upper polarizer disposed on the outer side of the liquid crystal display glass and a lower polarizer disposed on the inner side of the liquid crystal display glass, and the liquid crystal display glass is connected to a driver IC.

7. A mobile terminal, characterized in that, Including the liquid crystal display screen as described in any one of claims 1-6.

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