WO2020107748A1

WO2020107748A1 - Structure for hiding front-facing camera, and camera module and terminal device

Info

Publication number: WO2020107748A1
Application number: PCT/CN2019/078527
Authority: WO
Inventors: 王希林; 陈浩; 王帆
Original assignee: 华为技术有限公司
Priority date: 2018-11-28
Filing date: 2019-03-18
Publication date: 2020-06-04
Also published as: CN210327649U

Abstract

Provided in the present application are a structure and a terminal device. The structure comprises a light guide plate, wherein the light guide plate is located between a front-facing camera and cover glass, and a projection of the light guide plate, in a direction perpendicular to a display screen covers a projection of a notch, in the direction perpendicular to the display screen. In addition, the structure further comprises one or more color light sources located on a side face of the light guide plate and used to emit light of a specified color to the side face of the light guide plate under the control of a processor. The light guide plate is further used to change a propagation direction of the light of the specified color to the direction perpendicular to the display screen, such that the light guide plate displays the specified color. With the matching between the provided light guide plate and the provided color light sources, light rays emitted from the color light sources are refracted into the notch covered by the light guide plate and are emitted out, such that the notch is covered, thereby improving the display effect of the terminal device.

Description

Structure for hiding front camera, camera module and terminal equipment

This application requires the priority of the Chinese patent application submitted to the State Intellectual Property Office of China on November 28, 2018, with the application number 201821972979.9 and the invention titled "terminal device with hidden front camera", the entire content of which is incorporated by reference in this document Applying.

Technical field

The present application relates to the technical field of terminal equipment, in particular to a structure, a camera module and a terminal equipment for hiding a front camera.

Background technique

With the rise of comprehensive screen technology, there is an increasing need to increase the screen share of mobile phones and hide some devices on the top of the mobile phone screen. The devices at the top of the screen mainly include a front camera, ambient light sensor, proximity light sensor, earpiece, etc.

In order to improve the screen ratio, there are bangs screens and water drop screens on the market. The shape of the screen is shaped to improve the screen ratio, but whether it is a bangs screen or a water drop screen, it is used to open a gap on the top of the screen Used to arrange the front camera and other sensors, this special-shaped design will destroy the integrity of the screen, making the screen look incomplete most of the time, especially the gap in the middle is very obvious, affecting the user experience.

Summary of the invention

The present application provides a structure for hiding a front camera, a camera module, and a terminal device to improve the display effect of the terminal device.

In a first aspect, a structure for hiding a front camera is provided for a terminal device. The terminal device includes: a display screen, a front camera, a cover glass, and a processor, wherein the display screen is in the There is a notch above the front camera; the structure includes a light guide plate, which is located between the front camera and the cover glass, and the light guide plate is projected perpendicular to the direction of the display screen Covering the projection of the notch in the direction perpendicular to the display screen; in addition, it also includes one or more color light sources, located on the side of the light guide plate, for controlling the light guide plate under the control of the processor The side emits light of a specified color; the light guide plate is also used to change the propagation direction of the light of the specified color to a direction perpendicular to the display screen, so that the light guide plate displays the specified color. Through the cooperation of the provided light guide plate and the color light source, the light emitted by the color light source is refracted and emitted into the gap blocked by the light guide plate, thereby blocking the gap and improving the display effect of the terminal device.

When the light guide plate is specifically provided, the light guide plate is a nano light guide plate, and the light guide plate is made of transparent plastic or glass doped with nano-sized small particles. The nanometer-sized small particles are provided to improve the refraction effect of the light guide plate, thereby improving the effect of blocking the gap.

Of course, the light guide plate may also take other forms, for example, the light guide plate is an electrically controlled liquid crystal panel or an electrically controlled liquid crystal film. When the power is applied, the light guide plate is transparent, and when not powered, the light guide plate becomes foggy. The display is realized by using an electronically controlled liquid crystal panel or an electronically controlled liquid crystal film, and when not powered, it can cooperate with the front camera.

When specifically setting the position of the light guide plate, the light guide plate is located above the display screen, or the light guide plate is located below the display screen. That is, the light guide plate can be disposed at different positions relative to the display screen.

In a specific embodiment, the light guide plate is located above the display screen, and a layer of light attenuating material is coated around the light guide plate except for the side opposite to the color light source. The light guide plate and the light attenuation material are provided to improve the matching effect with the display screen.

When the light guide plate is located above the display screen, the light guide plate is embedded in the cover glass, and its lower surface is flush with the lower surface of the cover glass.

When a color light source is specifically provided, the color light source includes red, green, and blue light emitting diodes (RGB LEDs).

In a specific embodiment, the light emitting direction of the RGB LED is side light emitting.

In a specific embodiment, the thickness of the color light source is the same as that of the light guide plate, and the color light source is placed flush with the side of the light guide plate when placed. Therefore, the light can be transmitted to the light guide plate more evenly.

The specified color in the above is the color corresponding to the image data in the display buffer area corresponding to the gap. Or the specified color is a color similar to or the same as the color of the display screen around the notch.

In a specific embodiment, the light guide plate is used to allow outside light to pass through and enter the front camera when the front camera is working.

In a specific embodiment, the light guide plate displays the light of the specified color when the front camera is not working.

In a second aspect, a terminal device is provided. The terminal device includes a display screen, a front camera, a cover glass, a processor, and any of the above-mentioned structures. Through the cooperation of the provided light guide plate and the color light source, the light emitted by the color light source is refracted and emitted into the gap blocked by the light guide plate, thereby blocking the gap and improving the display effect of the terminal device.

In a specific feasible embodiment, the processor is used for:

Obtaining one-screen complete image data for display, wherein the complete image data is all image data for display on the display screen including the notch;

Acquiring notch image data corresponding to the notch;

Converting the notch image data into color light source data corresponding to the specified color to be displayed by the color light source;

The color light source data is used to control the color light source to display the specified color.

In a specific possible implementation, the processor is further used to control the light guide plate to turn off the color light source when the front camera is working.

In a specific possible implementation, the processor is further configured to control the light guide plate to display the light of the specified color when the front camera is not working.

In a specific feasible embodiment, the terminal device further includes a color light source driving chip, the color light source driving chip is connected to the color light source and the processor, and the color is controlled using the color light source data The light source displaying the specified color includes: using the color light source data to control the color light source to display the specified color through the color light source driving chip.

In a specific feasible embodiment, the light guide plate in the terminal device is an electronically controlled liquid crystal panel or an electronically controlled liquid crystal film, and the terminal device further includes: a liquid crystal switch drive circuit, and the liquid crystal switch drive circuit is used for Generates a voltage that drives the deflection of liquid crystal molecules in the liquid crystal panel; the output of the liquid crystal switch drive circuit is connected to the two poles of the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film, the input of the liquid crystal switch drive circuit and the processor Connected.

In a specific feasible embodiment, the processor is further used to control the electronically controlled liquid crystal panel or the electrically controlled liquid crystal film to be in a transparent state when the front camera is working through the liquid crystal switch driving circuit, so that Outside light can pass through the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film and enter the front camera.

In a specific feasible embodiment, the processor is further used to control the electronically controlled liquid crystal panel or the electrically controlled liquid crystal film through the liquid crystal switch driving circuit when the front camera is not in operation.

In a specific possible implementation, the color light source is a red, green, and blue light emitting diode (RGB) LED, and the processor is used to convert the notch image data into an LED corresponding to the specified color to be displayed by the LED Data, specifically used:

Perform average processing on the notch image data according to the three colors of R, G and B to obtain an initial color value;

Then, the initial color value is corrected non-linearly, so that the input data and the output brightness have a linear relationship;

Then, brightness correction is performed on the non-linearly corrected data to obtain the final LED data corresponding to the specified color.

In a specific possible implementation, obtaining one screen of complete image data for display includes obtaining one screen of complete image data for display from the display buffer area.

In a third aspect, a camera module is provided. The camera module includes a front camera and any one of the above structures for hiding the front camera.

Through the cooperation of the provided light guide plate and the color light source, the light emitted by the color light source is refracted and emitted into the gap blocked by the light guide plate, thereby blocking the gap and improving the display effect of the terminal device.

BRIEF DESCRIPTION

1 is a structural reference diagram for hiding a front camera provided by an embodiment of this application;

2 is a schematic structural diagram of a terminal device provided by an embodiment of this application;

FIG. 3 is a schematic diagram of application of the structure provided by the embodiment of the present application to a terminal device;

4 is a schematic structural diagram of another terminal device provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of application of a structure for hiding a front camera in a terminal device provided by an embodiment of the present application;

FIG. 6 is a flow chart of the structure used to hide the front camera provided by an embodiment of the present application;

FIG. 7 is a flow chart of the structure used to hide the front camera provided by an embodiment of the present application;

8 is a schematic diagram of application of the structure provided in the embodiment of the present application to a terminal device;

9 is a schematic structural diagram of a terminal device provided by an embodiment of this application.

detailed description

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be described in further detail below with reference to the accompanying drawings.

In order to facilitate understanding of the structure for hiding the front camera provided by the embodiments of the present application, the application scenario is first described below. The structure for hiding the front camera is applied to a terminal device, and the terminal device may be a common terminal device such as a tablet computer or a mobile phone. As shown in FIG. 1, the terminal device includes a display screen, and a cover glass stacked on the display screen, wherein the cover glass is located on the light exit surface of the display screen. In addition, the terminal device also includes a front camera, which is a hidden front camera. Therefore, when setting the display screen, the display screen is provided with a notch or through hole in the corresponding area above the front camera . Of course, in FIG. 1, taking the front camera as an example, the structure corresponding to the notch or the through hole may also be other devices, such as a proximity light sensor and a color light source. In addition, the terminal device provided in the embodiment of the present application further has a processor, and the processor is used to control the operation of devices such as a front camera and a display screen.

With continued reference to FIG. 1, the structure provided by the embodiment of the present application includes a light guide plate 20, which is located between the front camera and the cover glass when assembled on the terminal device, and can be positioned relative to the display screen Above the display screen, or below the display screen, but no matter which side of the display screen, the projection of the light guide plate 20 on a plane perpendicular to the display screen covers the projection of the notch on the plane, so that the light guide plate 20 can Cover gaps or through holes. In addition, the structure also includes one or more colored light sources, which are located on the side of the light guide plate 20 and are used to emit light of a specified color to the side of the light guide plate 20 under the control of the processor. After the light is transmitted into the light guide plate 20 The light guide plate 20 is used to change the propagation direction of the light of the specified color to a direction perpendicular to the display screen, so that the light guide plate 20 displays the specified color, thereby blocking the corresponding gap or through hole of the front camera through light.

Continuing to refer to FIG. 1, taking the placement direction of the structure shown in FIG. 1 as a reference direction, when three components are provided, the light guide plate 20 and the camera 10 are stacked and positioned above the camera 10, and the color light source 30 is provided on the light guide plate 20 At least one side.

With continued reference to FIG. 1, when the light guide plate 20 provided by the embodiment of the present application is arranged, its shape may be different shapes, such as a circular, polygonal, elliptical, or irregular shape, etc. In the specific setting, the actual light Need to choose different shapes. The light guide plate 20 is located in the angle of view area of the camera 10; thus, the light irradiated by the object imaged by the camera 10 needs to enter the range of the camera 10 through the light guide plate 20. In the structure shown in FIG. 1, the light guide plate 20 adopts a rectangular shape. For convenience of describing the light guide plate 20, each face of the light guide plate 20 is defined. The side of the light guide plate 20 facing away from the camera 10 is the first surface. The surface of the optical panel 20 facing the camera 10 is a second surface, and the surfaces connected to the first surface and the second surface are side surfaces. Continuing to refer to FIG. 1, the light guide plate 20 is a plate-like structure, wherein the length and width of the light guide plate 20 are much greater than the thickness of the light guide plate 20, wherein the length and width of the light guide plate 20 refer to the light guide plate 20 first The length and width of the surface, and the thickness of the light guide plate 20 refer to the vertical distance from the first surface to the second surface. In use, as shown in FIG. 1, the light guide plate 20 is parallel or approximately parallel to the light exit surface of the lens of the camera 10; external light is incident from the first surface and passes through the light guide plate 20 and exits from the second surface and enters Into the camera 10. In addition, the light guide plate 20 is also used to scatter the light irradiated by the color light source 30 to the first surface and emit it. Therefore, in order to improve the scattering effect, when the light guide plate 20 is specifically installed, the light guide plate 20 is a nano light guide plate 20, and the light guide plate 20 is made of transparent plastic or glass doped with small nano-scale particles That is, the prepared light guide plate 20 is provided with nano particles 21, which are doped in the light guide plate 20 to improve the effect of light scattering. When the nano particles 21 are specifically doped, the existing technology can be used The common concentration is mixed, and the size of the nanoparticles 21 can be selected according to specific needs. For example, the diameter of the nanoparticle 21 is below 1um.

In addition, the light guide plate 20 in the embodiment of the present application includes, but is not limited to, a light guide plate 20 or film doped with nanoparticles, and a light guide plate 20 or film printed with microstructures (such as dots and score lines). For example, the light guide plate 20 can also be an electrically controlled liquid crystal panel or an electrically controlled liquid crystal film. The electrically-controlled liquid crystal panel or the electrically-controlled liquid crystal film is a transparent light guide plate 20 when it is powered, and becomes misty when not powered, and the through-hole or The occlusion of the gap.

When the light guide plate 20 is installed, the light guide plate 20 may be located above or below the display screen, and the specific installation position may be determined according to the space in the actual terminal device. In specific settings, when the light guide plate 20 is located above the display screen, the light guide plate 20 may be embedded in the cover glass, and the lower surface of the light guide plate 20 is flush with the lower surface of the cover glass, so that it can pass through the cover The glass guide plate 20 is used to fix the light guide plate 20. Of course, the above-mentioned light guide plate 20 embedded in the cover glass is only a specific embodiment. The light guide plate 20 provided in the embodiment of the present application may also be fixed in other ways.

In addition, the sides (side walls) of the light guide plate 20 except for the side opposite to the color light source are coated with a layer of light attenuation material, such as black paint or paint of other colors. When light is irradiated into the light guide plate 20, the light attenuation material can effectively reduce the leakage of light from the side wall of the light guide plate 20, and improve the matching effect of the light guide plate 20 and the display screen when in use.

When specifically setting the color light source 30, the number of the color light sources 30 may be different numbers, such as one, two, three, four, etc., and in the specific setting, the color light source 30 is set On at least one side of the light guide plate 20. For example, when the light guide plate 20 adopts a rectangular shape, a color light source 30 may be provided on one side of the light guide plate 20, or on two adjacent sides, three sides, or four sides; the light guide plate 20 is oval or round At this time, the color light source 30 may be provided on one side, or the color light source 30 may be provided on the entire circle. In addition, the number of color light sources 30 provided on each side of the light guide plate 20 may be one or more. When the color light source 30 is provided, the light emitting surface of the color light source 30 faces the light guide plate 20, so that the light emitted by the color light source 30 can be irradiated into the light guide plate 20, as shown by the dotted arrow in FIG. 1, the color light source 30 emits The outgoing light can only be scattered by the first surface after being diffused by the nanoparticles 21, thereby improving the uniformity of the light after being irradiated on the first surface.

In addition, when the color light source 30 is specifically provided, the color light source 30 can emit light of different colors, so that the colors of the light guide plate 20 and the display screen 200 during display can be matched as much as possible. For example, each color light source 30 includes red, green, and blue light-emitting diodes (RGB) LEDs, so that the color light source 30 can emit different colors of light. In use, the different color light sources 30 can be controlled to emit different lights according to needs, such as Some color light sources 30 emit red light, another part of the light source 30 emits blue light, and other color light sources 30 emit green light. When it is determined that the color light source 30 emits different light, it is controlled by the processor in the terminal device. When the processor controls the color light source 30 to emit a specified color, the specified color refers to the color corresponding to the image data in the display buffer area corresponding to the notch, which can be understood as the position of the notch when the notch is not provided on the display Corresponds to the color that should be displayed. Or the specified color is similar to or the same as the color of the display screen around the notch. Therefore, the color displayed by the light guide plate 20 is approximately the same as the color displayed by the display screen, the display difference between the light guide plate 20 and the display screen is reduced, and the display effect of the display screen is improved.

In addition, when the color light source 30 is provided, the light emitting direction of the color light source 30 is side light emission, and the light emitted by the color light source 30 directly illuminates the light guide plate 20. In order to match the color light source 30 with the light guide plate 20, when the color light source 30 is provided, the thickness of the color light source 30 is the same as the thickness of the light guide plate 20, and the color light source is placed flush with the side of the light guide plate 20, that is, the color light source The light exit surface of 30 is flush with the side surface of the light guide plate 20, so that the light irradiated by the color light source 30 can be more evenly transmitted to the light guide plate 20, and the effect of light propagation is improved.

The light guide plate 20 can be used to allow outside light to pass through and enter the front camera when the front camera is working. At this time, external light can directly pass through the light guide plate 20 and illuminate the front camera. The front camera can be normal jobs. In addition, the light guide plate 20 displays light of a specified color when the front camera is not in operation. At this time, the color light source emits light of a specified color to the light guide plate 20, and the light guide plate 20 refracts the specified color to the light exit surface, so that the light guide plate 20 displays a color similar to that of the display screen.

In order to facilitate understanding of how the camera component provided by the embodiment of the present application improves the display effect of the terminal device 100. The application of the camera module will be described in detail below with reference to the drawings.

For ease of understanding, the structure of the terminal device 100 provided in the embodiments of the present application will be described first. The terminal device 100 includes a display screen 200, and any of the above-mentioned structures. When the structure is specifically configured, the display screen 200 is provided with The light transmissive area (the above-mentioned notch or through hole) corresponding to the camera 10, and the light guide plate 20 cover the light transmissive area. The light-transmitting regions may have different structures, which will be described below by way of examples.

As shown in FIG. 2, the light-transmitting area is a notch 201 provided on the display screen 200. At this time, when the terminal device 100 is installed, when an external sensor device or structure is used, a protrusion protruding in the direction of the display screen 200 is provided on the frame of the terminal device 100, and the protrusion is used to accommodate the The camera 10 and the sensor. When the display screen 200 is set, a notch 201 is correspondingly provided on the display screen 200. The specific setting of the notch 201 may be provided at the middle position of one edge of the display screen 200, or other positions, which is determined according to the position of the protrusion, and is generally set at the middle position. In the embodiment of the present application, the structure is provided at the convex position, that is, at the position of the notch 201. Referring to FIG. 3 together, FIG. 3 shows a specific arrangement manner of the structure in the embodiment of the present application. In specific settings, as shown in FIG. 1, the light guide plate 20 covers the gap 201, and when specifically covering the gap 201, two different methods can be adopted. One method is that the light guide plate 20 is located at the The notch 201 is inside and embedded in the notch 201. Another method is that the light guide plate 20 and the display screen 200 are stacked, and the light guide plate 20 partially covers the non-display area of the display screen 200. The non-display area refers to the non-display area located around the notch 201. Refer to FIG. 3 In the structure shown in FIG. 2, a partial area of the light guide plate 20 covers the non-display area of the display screen 200 around the notch 201. And when the color light source 30 is provided, as shown in FIG. 3, a plurality of color light sources 30 are provided on the side of the light guide plate 20 opposite to the display screen 200. When supplementary light is needed, the light irradiated by the color light source 30 enters the light guide plate 20 and is emitted from the first surface of the light guide plate 20. Thus, the light guide plate 20 can display different colors. In addition, since the light guide plate 20 and the display screen 200 are stacked, and the color light source 30 is located on the opposite side of the display screen 200, all areas in contact with the non-display area of the display screen 200 can emit light. The non-display area of the display screen 200 can be blocked, so that the display area of the display screen 200 and the light-emitting area of the light guide plate 20 can be approached to the maximum extent. During external observation, the light emitted by the light guide plate 20 can make up for the gap 201 of the display screen 200, thereby making the picture display more complete.

With continued reference to FIG. 3, when the light guide plate 20 is specifically provided, it may be connected to the display screen 200 by means of bonding, and of course, other methods may be used to connect the light guide plate 20 and the display screen 200 together. Alternatively, the light guide plate 20 is fixedly connected to the middle frame of the terminal device 100, and the laminated part of the light guide plate 20 and the display screen 200 is suspended, and the position between the light guide plate 20 and the display screen 200 can also be relatively fixed. And when the light guide plate 20 is specifically provided, the light guide plate 20 is located on the display surface side of the display screen 200, so that the light emitted by the light guide plate 20 can block the non-display area of the display screen 200. As for the installation position of the camera 10, it is arranged on both sides of the display screen 200 with the light guide plate 20 to reduce the opening size of the notch 201 and minimize the impact on the display screen 200.

When specifically setting up the structure, as shown in FIG. 3, a layer of glass cover 300 is also provided on the terminal device 100, and the glass cover 300 covers the display screen 200 and the light guide plate 20, thereby aligning the light guide plate 20 and the display screen 200 are protected.

In addition, when the structure is specifically set, when the structure is applied to the terminal device 100, it is connected to the processor of the terminal device. In application, when the processor obtains a complete set of image data, it intercepts the image content data at the protrusions and performs average processing to obtain a single-color RGB value (in the Android user interface, most of the protrusions The scene is monochrome). Then, while sending the display to the display screen 200, the monochrome RGB value is sent to the processor-so that while the screen is displayed, the color light source 30 is controlled to light up, thereby obtaining a complete display of the entire screen and improving the entire terminal device 100 display effect.

It should be understood that the light guide plate 20 in the camera assembly provided by the embodiment of the present application is not limited to the camera 10 shown in FIG. 3, and it can also be used to block other sensor devices. Only the light guide plate 20 can transmit and The light corresponding to the sensor device is sufficient. The principle is similar to the principle of blocking the camera 10 and will not be repeated here.

As shown in FIGS. 4 and 5, FIG. 4 shows an application of another structure. The light-transmitting area is a through hole 202 provided in the display screen 200; at this time, the structure is a hidden camera 10 when the structure is set. As shown in FIG. 5, the structure is disposed below the through hole 202 corresponding to the display screen 200 (the side facing away from the display surface of the display screen 200 ). When in use, light passes through the through hole 202 on the display screen 200. The light guide plate 20 is irradiated, and the camera 10 is irradiated through the light guide plate 20.

When the through hole 202 is specifically provided, the through hole 202 may be located in different positions, such as the display area or the non-display area of the display screen 200, or partially located in the display area and partially located in the non-display area. The through hole 202 shown in FIG. 3 is located in the display area of the display screen 200.

When the light guide plate 20 is provided, the light guide plate 20 is located on the side of the display screen 200 facing away from the display surface, and the light guide plate 20 covers the through hole 202. When the color light source 30 emits light, light can be scattered into the through hole 202 through the light guide plate 20 Therefore, the position corresponding to the through hole 202 can also be displayed, which improves the display effect of the display screen 200 and further improves the display effect of the terminal device 100.

With continued reference to FIG. 5, when the light guide plate 20 is specifically provided, the color light source 30 corresponding to the light guide plate 20 may be set according to actual conditions, either the color light source 30 may be provided on one side of the light guide plate 20, or the light guide plate 20 may be provided. The color light sources 30 are provided on all sides, and the shape of the light guide plate 20 may not be limited. The light guide plate 20 may be provided in different shapes such as a circle, a square, and an ellipse.

For this processor, during application, when acquiring a complete set of image data, the processor intercepts the image content data at the through-hole 202, performs averaging, etc., to obtain a single-color RGB value (in the Android user interface, (Most scenes are monochromatic at the bulge). Then, while sending the display to the display screen 200, the monochrome RGB value is sent to the processor-so that while the screen is displayed, the color light source 30 is controlled to light up, thereby obtaining a complete display of the entire screen and improving the entire terminal device 100 display effect.

As can be seen from the above description, by covering the light-guiding plate 20 with the light-transmitting area, the light-transmitting area can be supplemented by the color light source 30. The colors of the light guide plate 20 and the display screen 200 can be matched as much as possible. At the same time, during imaging, light can be transmitted into the camera 10 through the light guide plate 20, so that imaging can be performed. The above structure not only ensures the integrity of the display screen 200 during display, but also satisfies the requirements of camera shooting and improves the user experience.

In an embodiment of the present application, a camera module is further provided. The camera module includes a front camera 10 and any one of the above-mentioned structures for hiding the front camera 10. For specific coordination, please refer to the above description of the structure. Through the cooperation of the provided light guide plate 20 and the color light source 30, the light emitted by the color light source 30 is refracted and emitted into the gap blocked by the light guide plate 20, thereby blocking the gap and improving the display effect of the terminal device.

As shown in FIG. 6, an embodiment of the present application further provides a terminal device. The terminal device includes a display screen 200, a front camera 10, a cover glass, a processor 40, and any of the foregoing structures. And when adopting this structure, through the cooperation of the provided light guide plate 20 and the color light source 30, the light emitted by the color light source 30 is refracted and emitted into the gap blocked by the light guide plate 20, thereby blocking the gap and improving the display effect of the terminal device.

When the structure is in use, it is controlled by the processor 40. At this time, the processor 40 is used to: obtain one-screen complete image data for display, wherein the complete image data is used for display on the display screen 200 including the notch All image data; Obtain notch image data corresponding to the notch; Convert notch image data into color light source 30 data corresponding to the specified color to be displayed by the color light source 30; Use the color light source 30 data to control the color light source 30 to display the specified color. In specific implementation, the processor 40 is used to control the light guide plate 20 and the color light source 30 in the structure. As shown in FIG. 7, before use, the processor 40 first obtains the complete image data to be displayed by the entire display screen 200, and in specific implementation, obtains one screen of complete image data for display from the display buffer 50. The data includes data corresponding to each pixel unit on the display screen 200 (including image data corresponding to the gap). After acquiring all the data, the processor 40 can determine the corresponding gap at the gap according to the pixel unit array on the display screen 200 Image data, and control the color light source 30 to emit specified light through the gap image data, and in specific control, convert the gap image data into color light source 30 data corresponding to the specified color to be displayed by the color light source 30, and use the color light source 30 The data controls the color light source 30 to display the specified color. If the color light source 30 is a red, green, and blue light emitting diode (RGB) LED, the processor 40 converts the gap image data into LED data corresponding to the specified color to be displayed by the LED. In the specific processing process, the gap image data is first pressed by RGB The three colors are averaged to obtain an initial color value; then the initial color value is nonlinearly corrected to make the input data linearly related to the output brightness; finally, the nonlinearly corrected data is brightness corrected to obtain the final designation LED data corresponding to color. After generating the corresponding LED data, the LED will be controlled to emit light of a specified color according to the LED data, thereby matching the color displayed by the light guide plate 20 with the color displayed by the display screen 200, as shown in FIG. 8, the processor is acquiring After the complete image data of a frame of image is transmitted to the display screen 200, the image data at the notch is intercepted and weighted and averaged according to the three colors of R, G, and B respectively to obtain an initial color value R0, G0, B0. After that, the non-linear curve between the current and brightness of the RGB LED at the gap is gamma-calibrated, so that the input data and the output brightness have a linear relationship. At this time, the corrected color values R1, G1, B1 are obtained. Finally, according to the brightness setting of the screen, multiply R1, G1, B1 by a brightness correction coefficient β to obtain the final color values R2, G2, B2 to be displayed. Taking the color values R2, G2, B2 to be displayed finally as an example, the processor 40 controls the RGB LEDs to emit light of corresponding colors. The light guide plate 20 whose display colors are R2, G2, and B2 is mixed with the screen image to obtain a relatively complete screen image display. Therefore, the display difference on the display screen 200 is reduced, and the display effect is improved.

In actuality, refer to FIG. 6. In the structure provided by the embodiment of the present application, the terminal device further includes a color light source 30 driver chip 60, and the color light source 30 driver chip 60 is connected to the color light source 30 and the processor 40 respectively And used to control the color light source 30 to display the specified color after receiving the signal from the processor 40. After the color light source 30 receives the data of the color light source 30 sent by the processor 40, the chip 60 passes the color light source 30 data through the color light source 30 The driving chip 60 controls the color light source 30 to display the specified color.

When the structure works, the working state of the light guide plate 20 needs to be matched with the terminal device. When the structure is specifically controlled, it is also realized by the processor 40. When the front camera 10 is in the working state, the processor 40 is also used to control the light guide plate 20 to turn off the color light source 30 when the front camera 10 is working. At this time, the light guide plate 20 is a transparent light guide plate 20. The light can illuminate the front camera 10. When the front camera 10 is not working, the processor 40 is also used to control the light guide plate 20 to display light of a specified color when the front camera 10 is not working, at this time, the color light source 30 emits the specified color and refracts through the light guide plate 20 Going out, the color displayed on the display screen 200 of the terminal device is approximately the same as the color of the light refracted by the light guide plate 20, thereby improving the display effect of the terminal device in use. As shown in FIG. 9, when the front camera 10 is specifically controlled, it is also controlled by the processor 40, and the processor 40 controls the front camera 10 through a control chip 90. When necessary, the processor 40 transmits a signal to the control chip 90, and the front camera 10 is controlled to work through the control chip 90.

As for the structure of the light guide plate 20, different structures may be adopted, that is, a light guide plate 20 or film doped with nanoparticles, and a light guide plate 20 or film printed with microstructures (such as dots and scores). It can also be an electrically controlled liquid crystal panel or an electrically controlled liquid crystal film. The electrically-controlled liquid crystal panel or the electrically-controlled liquid crystal film is a transparent light guide plate 20 when it is powered, and becomes misty when not powered, and the through-hole or The occlusion of the gap. When the light guide plate 20 uses an electrically controlled liquid crystal panel or an electrically controlled liquid crystal film, the electrically controlled liquid crystal panel or the electrically controlled liquid crystal film needs to be controlled. Therefore, a liquid crystal switch drive circuit is provided on the terminal device, and the liquid crystal switch drive circuit is used to generate a voltage that drives the deflection of liquid crystal molecules in the liquid crystal panel; the output of the liquid crystal switch drive circuit is connected to the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film , The input of the liquid crystal switch driving circuit is connected to the processor 40. When the control signal sent by the processor 40 controls the conduction of the liquid crystal switch driving circuit, when the two poles of the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film are formed, a control of the liquid crystal molecules in the electrically controlled liquid crystal panel or the electrically controlled liquid crystal film is formed between the two poles The electric field causes the liquid crystal molecules to deflect, thereby changing the state (transparent state or fog state) of the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film. During specific control, the electronically controlled liquid crystal panel or electronically controlled liquid crystal film also needs to cooperate with the terminal device. For example, when the front camera 10 is working, the processor 40 controls the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film to be in a transparent state through the liquid crystal switch drive circuit, so that external light can enter the electronically controlled liquid crystal panel or the electrically controlled liquid crystal film Front camera 10. When the front camera 10 is not working, the processor 40 controls the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film to be in the form of a mist through the liquid crystal switch driving circuit.

It should be understood that in the above embodiments, the above description is directed to the AMOLED screen. As shown in FIG. 9, for the LCD screen, because it needs a backlight, there will be a white light driving chip 70, which is connected to the processor, and the processor controls the white LED 80 through the white light driving chip 70. The white LED 80 is Backlight source, when the screen is lit, the processor controls the white light driving chip 70 to light the backlight of the LCD module, while sending display data to the display screen 200, so that the LCD displays an image.

In order to facilitate understanding of the terminal device provided by the embodiments of the present application, the embodiments of the present application also provide a control display method, which is applied to any of the above terminal devices, and the method is executed by the processor in the terminal device, the following The specific work flow is explained in conjunction with flowchart 7 and FIG. 8.

Step 001: Obtain complete image data for one screen for display, wherein the complete image data is all image data for display on the display screen 200 including a notch;

In a specific implementation, the processor 40 obtains one screen of complete image data for display from the display buffer 50.

Step 002: Obtain notch image data corresponding to the notch;

In a specific implementation, after acquiring all the data, the processor 40 may determine the corresponding gap image data at the gap according to the pixel unit array on the display screen 200. When the image data is displayed through the display screen 200, each pixel unit corresponds to one of the complete image data, which is used to control the color of its display; after matching the data of the pixel unit, the processor 40 can obtain the gap Image data corresponding to the gap. Alternatively, a coordinate system may be established to obtain the coordinate area of the gap in the display screen 200, and the gap image data may be obtained by acquiring data corresponding to the coordinate area in the complete image data.

Step 003: Convert the gap image data into color light source 30 data corresponding to the specified color to be displayed by the color light source 30;

In specific implementation, the processor 40 converts the gap image data into LED data corresponding to the specified color to be displayed by the LED. In the specific processing process, the gap image data is first averaged according to the three RGB colors to obtain an initial Color value; after that, non-linear correction is performed on the initial color value, so that the input data and the output brightness have a linear relationship; finally, the non-linear correction data is subjected to brightness correction to obtain the LED data corresponding to the final specified color. The display of the color light source 30 can be controlled by this LED data. As shown in FIG. 8, after acquiring the complete image data of a frame of image, the processor intercepts the image data of the gap while transmitting it to the display screen 200, and performs weighted average according to the three colors of R, G, and B, respectively. To obtain an initial color value R0, G0, B0. After that, the non-linear curve between the current and brightness of the RGB LED at the gap is gamma-calibrated, so that the input data and the output brightness have a linear relationship. At this time, the corrected color values R1, G1, B1 are obtained. Finally, according to the brightness setting of the screen, multiply R1, G1, B1 by a brightness correction coefficient β to obtain the final color values R2, G2, B2 to be displayed.

Step 004: Use the color light source 30 data to control the color light source 30 to display the specified color.

In specific implementation, the display of the color light source 30 is controlled by the processor 40, which is specifically realized by the color light source driving chip 60, which is connected to the color light source 30 and the processor 40 respectively, and used to receive the processor After the 40 signal, the color light source 30 is controlled to display the specified color. After the color light source 30 chip 60 receives the color light source 30 data sent by the processor 40, the color light source 30 data is used to control the color light source 30 to display the specified color through the color light source drive chip 60 colour. Taking the above-mentioned obtaining the final color values R2, G2, B2 as an example, the processor 40 controls the RGB LEDs to emit light of corresponding colors. The light guide plate 20 whose display colors are R2, G2, and B2 is mixed with the screen image to obtain a relatively complete screen image display.

In addition, the method further includes controlling the light guide plate 20 to turn off the color light source 30 when the front camera 10 is working. And control the light guide plate 20 to display light of a specified color when the front camera 10 is not in operation. In the specific implementation, reference may be made to the above description of the structure of the terminal device.

It should be understood that in the above embodiments, the above description is directed to the AMOLED screen. As shown in FIG. 9, for the LCD screen, because it needs a backlight, there will be a white light driving chip 60, which is connected to the processor, and the processor controls the white LED through the white light driving chip 60. The white LED is Backlight source, when the screen is lit, the processor controls the white light driving chip 60 to light the backlight of the LCD module, while sending display data to the display screen 200, so that the LCD displays an image.

As can be seen from the above description, through the cooperation of the provided light guide plate 20 and the color light source 30, the light emitted by the color light source 30 is refracted and emitted into the gap blocked by the light guide plate 20, thereby blocking the gap and improving the display effect of the terminal device.

The above are only specific implementations of this application, but the scope of protection of this application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in this application, and should cover Within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A structure for hiding a front camera, which is characterized by being used in a terminal device. The terminal device includes: a display screen, a front camera, a cover glass, and a processor. The display screen is located in the front camera There is a gap at the upper part; the structure includes:

A light guide plate, located between the front camera and the cover glass, and the projection of the light guide plate in the direction perpendicular to the display screen covers the projection of the notch in the direction perpendicular to the display screen; and

One or more colored light sources, located on the side of the light guide plate, for emitting light of a specified color to the side of the light guide plate under the control of the processor;

The light guide plate is also used to change the propagation direction of the light of the specified color to a direction perpendicular to the display screen, so that the light guide plate displays the specified color.
The structure of claim 1, characterized in that:

The light guide plate is a nano light guide plate, and the light guide plate is made of transparent plastic or glass doped with nano-sized small particles.
The structure of claim 1, wherein:

The light guide plate is an electrically controlled liquid crystal panel or an electrically controlled liquid crystal film. When the power is applied, the light guide plate is transparent, and when the power is not applied, the light guide plate becomes misty.
The structure according to any one of claims 1 to 3, wherein the light guide plate is located above the display screen, or the light guide plate is located below the display screen.
According to the structure of claim 4, the light guide plate is located above the display screen, and a side of the light guide plate except for the side opposite to the color light source is coated with a layer of light attenuation material.
The structure according to any one of claims 1 to 5, wherein the light guide plate is located above the display screen, the light guide plate is embedded in the cover glass, and its lower surface is flush with the lower surface of the cover glass .
The structure according to any one of claims 1 to 6, wherein the color light source includes red, green and blue light emitting diodes (RGB LEDs).
The structure according to claim 7, wherein the RGB LED emits light in a side direction.
The structure according to any one of claims 1-8, wherein the thickness of the color light source is the same as that of the light guide plate, and the color light source is placed flush with the side of the light guide plate when placed.
The structure according to any one of claims 1-9, wherein the specified color is a color corresponding to the image data in the display buffer area corresponding to the gap.
The structure according to any one of claims 1-9, wherein the specified color is a color similar to or the same as the color of the display screen around the notch.
The structure according to any one of claims 1-11, wherein the light guide plate is used for allowing external light to pass through and enter the front camera when the front camera is in operation.
The structure according to any one of claims 1-12, wherein the light guide plate displays the light of the specified color when the front camera is not in operation.
A terminal device includes a display screen, a front camera, a cover glass, a processor, and the structure according to any one of claims 1-13.
The apparatus of claim 14, wherein the processor is used to:

Obtaining one-screen complete image data for display, wherein the complete image data is all image data for display on the display screen including the gap;

Acquiring notch image data corresponding to the notch;

Converting the notch image data into color light source data corresponding to the specified color to be displayed by the color light source;

The color light source data is used to control the color light source to display the specified color.
The terminal device according to claim 15, wherein the processor is further configured to control the light guide plate to turn off the color light source when the front camera is working.
The terminal device according to any one of claims 15-16, wherein the processor is further configured to control the light guide plate to display the light of the specified color when the front camera is not in operation.
The terminal device according to claims 15-17, characterized in that the terminal device further comprises a color light source driving chip, the color light source driving chip is connected to the color light source and the processor, and the use of the The color light source data controlling the color light source to display the specified color includes: using the color light source data to control the color light source to display the specified color through the color light source driving chip.
The terminal device according to claim 18, wherein the light guide plate in the terminal device is an electronically controlled liquid crystal panel or an electrically controlled liquid crystal film, and the terminal device further includes: a liquid crystal switch drive circuit, the liquid crystal The switch drive circuit is used to generate a voltage that drives the deflection of liquid crystal molecules in the liquid crystal panel; the output of the liquid crystal switch drive circuit is connected to the two poles of the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film, and the input of the liquid crystal switch drive circuit Connected to the processor.
The terminal device according to claim 19, wherein the processor is further used to control the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film through the liquid crystal switch driving circuit when the front camera operates It is in a transparent state, so that external light can pass through the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film and enter the front camera.
The terminal device according to claim 19 or 20, wherein the processor is further used to control the electronically controlled liquid crystal panel or the electronically controlled liquid crystal film on the front camera through the liquid crystal switch drive circuit It is misty when not working.
The terminal device according to any one of claims 15 to 21, wherein the color light source is a red, green, and blue light emitting diode (RGB), and the processor is used to convert the notch image data to the LED. When displaying the LED data corresponding to the specified color, it is specifically used to:

The notch image data is averaged according to the three RGB colors to obtain an initial color value;

Then, the initial color value is corrected non-linearly, so that the input data and the output brightness have a linear relationship;

Then, brightness correction is performed on the non-linearly corrected data to obtain the final LED data corresponding to the specified color.
The terminal device according to any one of claims 15-22, wherein obtaining one screen of complete image data for display comprises: obtaining one screen of the complete image data for display from a display buffer area.
A camera module, characterized by comprising a front camera and the structure for hiding the front camera according to any one of claims 1-13.