Patent ID: 12216356

DETAILED DESCRIPTION OF EMBODIMENTS

The technical solutions in the present application will be clearly and completely described below in conjunction with accompanying drawings and with reference to specific embodiments. Obviously, the embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work shall fall within the protection scope of the present application. In addition, it should be understood that the specific embodiments described here are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, unless otherwise specified, directional terms such as “upper” and “lower” generally refer to the upper and lower directions of a device in actual use or work state, and specifically refer to the directions in the drawings. The terms “inner” and “outer” are referred to with respect to outlines of the device.

Please refer toFIG.1.FIG.1is a schematic cross-sectional view of a display device and an electronic component according to prior art. A display panel1is disposed on a light emitting side of a backlight module2, and the backlight module2includes a light source21and a light guide plate22, a reflective film23, an optical film24, and a frame25. The reflective film23is disposed on the frame25, the light guide plate22is disposed on the reflective film23, the optical film24is disposed on the light guide plate22, and the light source21is disposed at a lateral side of the light guide plate22. In order to realize under-screen camera technology, a via hole26corresponding to a camera is defined in the frame25, the reflective film23, the light guide plate22, and the optical film24. Moreover, the optical film24is bonded to the display panel1through a light-shielding adhesive27, and the frame25is bent into the via hole26, so as to prevent light leakage at the via hole26from affecting camera shooting. However, when the display device is displaying images, the light-shielding adhesive27and a sealant frame at the via hole26cause black borders. Obviously, such a structure is not conducive to integral full-screen display performance.

The present application provides a display device and a mobile terminal. A detailed description is provided below. It should be noted that a description order of the following embodiments is not intended to limit a preferable order of the embodiments.

Referring toFIGS.2and3, the present application provides a display device10including a display panel100and a backlight module200. The backlight module200is disposed on one side of the display panel100. In the display device10of the present application, the display panel100can be a liquid crystal display panel, and the backlight module200provides a light source for the display panel100.

Specifically, as shown inFIG.2, the display panel100includes a first display area110, a second display area120, and a third display area130. The second display area120is disposed on one side of the first display area110, and the third display area130is disposed within the second display area120. The second display area120surrounds at least a portion of the third display area130. In the display device10of the present application, the third display area130is completely surrounded by the second display area120. In other words, the second display area120surrounds the third display area130. Certainly, the third display area130can be partially surrounded by the second display area120according to actual situation and specific requirements, and the present application is not limited in this regard.

Specifically, as shown inFIG.2andFIG.3, the backlight module200is provided with a via area264, and the via area264is disposed corresponding to the third display area130. The backlight module200includes a plurality of first light sources210and a plurality of second light sources230. The first light sources210are disposed corresponding to the first display area110, and the first light sources210are used to provide a light source for the first display area110. The second light sources230are disposed corresponding to the second display area120, and the second light source230is used to provide a light source for the second display area120. Since the third display area130is disposed in the second display area120, the second light source230can also be used to provide a light source for the third display area130.

In the display device10of the present application, in a first state, the first light sources210are turned on, and the second light sources230are turned on. In a second state, the first light sources210are turned on, and the second light sources230are turned off. When the display device10is used in a mobile terminal, the mobile terminal includes an electronic component20and the display device10of the present application. The third display area130and the via area264are disposed corresponding to the electronic component20(a camera, a sensor, etc.). When the camera is in operation, the first light sources210are turned on to make the first display area110display normally, and the second light sources230are turned off, so that the second display area120and the third display area130do not display images, which can reduce light leakage of the backlight module200, and thereby prevent camera shooting from being affected by the light leakage. When the camera is not in operation, the first light sources210are turned on to enable the first display area110to display normally, and the second light sources230are turned on to enable the second display area120and the third display area130to display normally, so as to achieve a true full screen function. Compared with the prior art shown inFIG.1, the display device10of the present application can reduce the light leakage at the via area264of the backlight module200while ensuring an integral display effect.

Specifically, as shown inFIGS.2to4, in the display panel100of the present application, the backlight module200further includes a first driving module220and a second driving module240, and the first driving module220is electrically connected to the first light sources210. The first driving module220is used to control the first light sources210, and the first light source210can be turned on or off through the first driving module220. The second driving module240is electrically connected to the second light sources230, the second driving module240is used to control the second light source230, and the second light sources230can be turned on or off through the second driving module240. In the first state, the first driving module220turns on the first light sources210, and the second driving module240turns on the second light sources230. In the second state, the first driving module220turns on the first light sources210, and the second driving module240turns off the second light sources230.

In the display device10of the present application, the first light source210and the second light source230in the display device10are turned on by respective driving modules. When the camera is in operation, the first driving module220turns on the first light sources210to make the first display area110display normally, and the second driving module240turns off the second light sources230, so that the second display area120and the third display area130do not display images, which can reduce the light leakage of the backlight module200and thereby prevent camera shooting from being affected. When the camera is not in operation, the first driving module220lights up the first light sources210to make the first display area110display normally, and the second driving module240lights up the second light sources230to make the second display area120and the third display area130display normally, thereby realizing true full-screen operations.

Specifically, the backlight module200further includes a light guide plate250. In the light guide plate250, a light propagation ability along the first direction X is greater than a light propagation ability along the second direction Y. That is to say, light has a strong light-gathering ability along the first direction X in the light guide plate250, and light has a weak light-spreading ability along the second direction Y in the light guide plate250. In the second direction Y, the first display area110is arranged on one side of the display area120, the first direction X intersects with the second direction Y. This way, the light emitted by the second light sources230can be prevented from spreading to regions corresponding to the second display area120and the third display area130in the light guide plate250.

Specifically, the first light sources210and the second light sources230are arranged on one side of the light guide plate250. The first light sources210and the second light sources230are arranged along the second direction Y. The first light sources210and the second light source230are arranged on a same side. The first direction X and the second direction Y are both parallel to a light emitting surface of the light guide plate250.

Specifically, according to the present application, in the second direction Y, a width of the second display area120is greater than a width of the third display area130, thereby separating the third display area130from the first display area110to prevent backlight of the first display area110from spreading to the third display area130. In the present application, the width of the second display area120ranges from 5 mm to 20 mm, and the width of the third display area130ranges from 4 mm to 7 mm Such configuration can prevent the backlight of the first display area110from spreading to the third display area130.

Specifically, as shown inFIG.3, the light guide plate250includes a light guide area253and a light transmissive area254. The light guide area253is disposed corresponding to the first display area110and the second display area120, and the light transmissive area254is disposed corresponding to the third display area130. The light transmissive area254is disposed corresponding to the via area264. The light guide plate250is provided with a plurality of first microstructures255for guiding the light to propagate along the first direction X. The microstructures255are disposed in the light guide area253and bypass the light transmissive area254. In this structure, by arranging the first microstructures255on the light guide plate250, the light can be guided to propagate along the first direction X, so that the light has a strong light-gathering ability along the first direction X in the light guide plate250. Further, by making the first microstructures255bypass the light transmissive area254, the light transmissive area254is not provided with the first microstructures255, which can prevent the first microstructures255from affecting camera shooting.

Specifically, as shown inFIG.3, on one side close to the display panel100, a surface of the light guide plate250is a light emitting surface251, and the light emitting surface251is provided with the first microstructures255. By arranging the first microstructures255on the light emitting surface251of the light guide plate250, the light can be guided to propagate along the first direction X, so that the light has a strong light-gathering ability along the first direction X in the light guide plate250.

Specifically, as shown inFIG.3, on one side away from the display panel100, a surface of the light guide plate250is a bottom surface252, and the bottom surface252is provided with the first microstructures255. In this structure, by arranging the first microstructures255on the bottom surface252of the light guide plate250, the light can be guided to propagate along the first direction X, so that the light has a strong light-gathering ability along the first direction X in the light guide plate250.

In the display device10of the present application, the light emitting surface251and the bottom surface252of the light guide plate250are both provided with the first microstructures255. Certainly, the first microstructures255can be provided on only one of the light emitting surface251or the bottom surface252according to actual situations and specific requirements, and the present application is not limited in this regard.

Specifically, as shown inFIG.3andFIG.5, the first microstructures255include a plurality of grooves arranged in sequence along the first direction X, and each groove extends along the second direction Y in a strip shape. By arranging the grooves extending along the second direction Y on the light guide plate250, the light guide plate250has a strong light-gathering ability along the first direction X. It can be understood that, a specific structure of the first microstructure255can be appropriately modified according to actual situations and specific requirements, and the present application is not limited in this regard.

Specifically, as shown inFIG.3, a cross-section of each first microstructure255along the first direction X can be V-shaped. Certainly, the cross-section of the first microstructure255along the first direction X can be appropriately modified according to actual situations and specific requirements. For example, the cross-section of each first microstructure255along the first direction X can be arc-shaped, and the present application is not limited in this regard.

Specifically, as shown inFIG.5, in order to improve output light uniformity of the light guide plate250, the light guide plate250is provided with a plurality of second microstructures256for scattering light. The second microstructures256are arranged bypassing the light transmissive area254. By disposing the second microstructures256on the light guide plate250, light can be scattered to thereby improve the output light uniformity of the light guide plate250. By arranging the second microstructures256bypassing the light transmissive area254, that is, the light transmissive area254is not provided with the second microstructures256, the present application prevents the second microstructures256from affecting the camera shooting.

Specifically, the second microstructures256include a plurality of dots. By arranging the dots on the light guide plate250, light can be scattered, thereby improving the output light uniformity of the light guide plate250. It can be understood that, a specific structure of the second microstructure256can be appropriately modified according to actual situations and specific requirements, and the present application is not limited in this regard.

Specifically, as shown inFIG.5, the light emitting surface251of the light guide plate250is provided with the second microstructures256. By disposing the second microstructures256on the light emitting surface251of the light guide plate250, light can be scattered, thereby improving the light output uniformity of the light guide plate250.

Specifically, the bottom surface252of the light guide plate250is provided with second microstructures256. By disposing the second microstructures256on the light emitting surface251of the light guide plate250, light can be scattered, thereby improving the light output uniformity of the light guide plate250.

In the display device10of the present application, the light emitting surface251and the bottom surface252of the light guide plate250are both provided with the second microstructures256. Certainly, the second microstructures256can be provided on one of the light emitting surface251or the bottom surface252according to actual situations and specific requirements, and the present application is not limited in this regard.

Specifically, the first microstructures255and the second microstructures256are arranged bypassing the light transmissive area254, so that light transmittance of the light transmissive area254of the light guide plate250is greater than light transmittance of the light guide area253of the light guide plate250. In this structure, ambient light can pass through the light transmissive area254of the light guide plate250to reach the camera, thereby improving imaging quality of the camera.

Specifically, the light transmittance of the light transmissive area254of the light guide plate250is greater than or equal to 80%. Accordingly, the light transmittance of the light transmissive area254of the light guide plate250is high, so that ambient light can pass through the light transmissive area254of the light guide plate250to reach the camera, thereby effectively improving the imaging quality of the camera.

In the display device10of the present application, the light transmittance of the light transmissive area254of the light guide plate250can be 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, 98%, 99%, or 99.9%. Certainly, the light transmittance of the light transmissive area254of the light guide plate250can be adjusted appropriately, and the present application is not limited in this regard.

Specifically, as shown inFIG.3, the backlight module200further includes a reflective film261and an optical film262. The reflective film261is disposed on one side of the light guide plate250away from the display panel100, and the optical film262is disposed on one side of the light guide plate250close to the display panel100. The reflective film261is provided with a first via hole2641, and the optical film262is provided with a second via hole2642. The first via hole2641and the second via hole2642are arranged corresponding to the light transmissive area254. The arrangement of the reflective film261and the optical film262can improve light output efficiency of the backlight module200. Further, by arranging the first and second via holes2641and2642in the reflective film261and the optical film262, the camera can receive ambient light normally.

Specifically, the optical film262can include at least one of a diffuser sheet, a brightness enhancement sheet, or a prism sheet. Certainly, the optical film262can also include other films according to actual situations and specific requirements, and the present application is not limited in this regard.

Specifically, as shown inFIG.3, the backlight module200further includes a frame263. The frame263is disposed on one side of the reflective film261away from the display panel100. The frame263is provided with a third via hole2643. The third via hole2643is disposed corresponding to the light transmissive area254. By arranging the third via hole2643in the frame263, the camera can receive ambient light normally. In this embodiment, the frame263can be, but not limited to, an iron frame.

Specifically, as shown inFIGS.3and6, the first light sources210and the second light sources230are disposed on two opposite sides of the light guide plate250along the first direction X. That is to say, on the two opposite sides of the light guide plate250along the first direction X, the first light sources210and the second light sources230are disposed. By arranging the first light sources210and the second light sources230on the two opposite sides of the light guide plate250, light output quality of the backlight module200can be improved.

Specifically, as shown inFIG.2, when the first light sources210are turned on, and the second light sources230are turned off, light emitted by the first light sources210may spread to the second display area120and the third display area130. This will cause light leakage from the third display area130and affect normal operations of the electronic component20. In order to improve or solve the above problems, a buffer interval is present between the first light source210closest to the second display area120and the second light source230closest to the first display area110, and the buffer interval is used to prevent the light from the first light sources210from spreading to the second display area120and the third display area130.

Specifically, in the display device10of the present application, the buffer interval can be 1 mm to 5 mm. For example, the buffer interval may be 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm, or 5 mm. It can be understood that specific values of the buffer interval can be adjusted appropriately according to actual situations and specific requirements, and the present application is not limited in this regard.

Specifically, the backlight module200can include multiple first light sources210, and the first light sources210can provide light sources for the first display area110. The first light sources210can be electrically connected to the same first driving module220. The first light sources210are simultaneously turned on or off through the same one first driving module220. Certainly, one first light source210can also be arranged corresponding to one first driving module220. That is to say, the first light sources210are arranged in one-to-one correspondence with multiple first driving modules220. Each first light source210is electrically connected to one first driving module220, and each first driving module220is used for turning on or off one first light source210. In this embodiment, a distribution spacing of the first light sources210can be 1 mm to 5 mm That is to say, the spacing between two adjacent first light sources210can be 1 mm to 5 mm.

Similarly, the backlight module200can include multiple second light sources230, and the multiple second light sources230can provide light sources for the second display area120and the third display area130. The second light sources230can be electrically connected to the same second driving module240. The second light sources230can be simultaneously turned on or off through one second driving module240. Certainly, one second light source230can also be arranged corresponding to one second driving module240. That is to say, the multiple second light sources230are arranged in one-to-one correspondence with multiple second driving modules240, each second light source230is electrically connected to one second driving module240, and each second driving module240is used for lighting or extinguishing one second light source230. In this embodiment, a distribution spacing of the second light sources230can be 1 mm to 5 mm That is to say, the spacing between two adjacent second light sources230can be 1 mm to 5 mm Specifically, in order to make the first display area110receive uniform backlight, the distribution spacing of the first light sources210can be adjusted. In this embodiment, the distribution spacing of the first light sources210is smaller than the buffer interval. Accordingly, the backlight received by the first display area110is more uniform, and the light from the first light source210can be prevented from spreading to the second display area120and the third display area130.

Specifically, in order to make the second display area120and the third display area130receive uniform backlight, the distribution spacing of the second light sources230can be adjusted. In this embodiment, the distribution spacing of the second light sources230is smaller than the buffer interval, so that the backlight received by the second display area120and the third display area130is more uniform.

Specifically, since the first microstructures255bypass the light transmissive area254, a portion of the light guide plate250corresponding to the second display area120has poor light-output brightness and uniformity. In order to improve the above problems, the distribution spacing of the first light sources210can be larger than the distribution spacing of the second light sources230, thereby improving the light-output brightness and uniformity of the portion of the light guide plate250corresponding to the second display area120.

Specifically, as shown inFIG.3, the backlight module200further includes a compensation backlight unit270. The compensation backlight unit270is disposed on one side of the light guide plate250away from the display panel100, and the compensation backlight unit270is disposed corresponding to the third display area130of the display panel100. The compensation backlight unit270is used to provide a light source for the third display area130. By adding the compensation backlight unit270, compensation backlight can be provided for the third display area130of the display panel100, which is beneficial to realize high-quality full-screen display. In this embodiment, the compensation backlight unit270is arranged on one side of the iron frame away from the display panel100. Certainly, a specific position of the compensation backlight unit270can be modified appropriately according to actual situations and specific requirements, as long as the compensation backlight unit270is located on a light incident side of the display panel100; and the present application is not limited in this regard.

Specifically, as shown inFIG.3, the compensation backlight unit270includes a compensation light source271. The compensation light source271is arranged in a ring shape, so that the camera can receive ambient light through an opening in a middle of the compensation light source271. In the display device10of the present application, the compensation light source271can be electrically connected to the second driving module240, so that the second driving module240can turn on or off the second light source230and the compensation light source271at the same time. Certainly, the compensation light source271can also be electrically connected to other driving modules according to actual situations and specific requirements, as long as the compensation light source271and the first light source210can be separately driven and controlled; and the present application is not limited in this regard.

Specifically, as shown inFIG.3, the compensation backlight unit270further includes a liquid crystal layer272, a first electrode273disposed on one side of the liquid crystal layer272close to the display panel100, and a second electrode274disposed on one side of the liquid crystal layer272away from the display panel100. The compensation light source271surrounds the liquid crystal layer272. By changing a voltage difference between the first electrode273and the second electrode274, a tilt angle in the liquid crystal layer272is changed, so that the liquid crystal layer272is switched between a transparent state and a foggy state. When the liquid crystal layer272is in the foggy state, light emitted by the compensation light source271is refracted by the foggy liquid crystal layer272and irradiated to the third display area130of the display panel100, thereby realizing the full-screen display of the display panel100.

Specifically, the first light source210, the second light source230, and the compensation light source271can be light-emitting diodes (LEDs). Certainly, the first light source210, the second light source230, and the compensation light source271can also be other light emitting elements according to actual situations and specific requirements; and the present application is not limited in this regard.

Specifically, as shown inFIG.2, in the display device10of the present application, the display panel100is rectangular shaped, and the third display area130is located in a middle of a top of the display panel100. Certainly, a specific position of the third display area130can be adjusted appropriately according to the actual situations and specific requirements. For example, the third display area130can be located on one side of the display panel100close to the second light source230, and the present application is not limited in this regard.

Please refer toFIG.2,FIG.3, andFIG.6. The present application further provides a mobile terminal. The mobile terminal can be a mobile phone, a tablet computer, a notebook computer screen, a desktop display, a television (TV), an in-vehicle display screen, and other devices. The mobile terminal includes the electronic component20(a camera, a sensor, etc.) and the above-mentioned display device10. The electronic component20is disposed corresponding to the third display area130. Since the mobile terminal of the present application includes the technical solutions of all the above-mentioned embodiments, the mobile terminal has the advantages of all the above-mentioned technical solutions, which is not repeated herein.

In the present application, the electronic component20is disposed on one side of the backlight module200away from the display panel100, and can be located on one side of the compensation backlight unit270away from the display panel100. Certainly, a specific position of the electronic component20can be adjusted appropriately according to actual situations and specific requirements, as long as the electronic component20can be disposed corresponding to the third display area130; and the present application is not limited in this regard.

The above describes in detail the display device and the mobile terminal according to the embodiments of the present application. Specific examples are used in the present disclosure to illustrate working principles and embodiments of the present application. The description of the above embodiments is only for ease of understanding the method and main ideas of the present application. According to the idea of the present application, those skilled in the art can change the embodiments and the range of application. In summary, the content of this specification should not be construed as a limitation to the present application.