This application relates to the field of communication technologies, and in particular, to a display assembly and a display device.
With the development of mobile intelligent terminals, the three-dimensional (3D) sensing technology gradually becomes a standard hardware configuration of smartphones. Time of flight (TOF) is widely applied. In smartphones, the TOF is applied to physical ranging, 3D modeling, photographing performance improvement, and the like.
According to a first aspect, an embodiment of this application provides a display assembly, including:
a display panel;
a cover plate, disposed on a display side of the display panel;
a diverging element, located on a side of the cover plate close to the display panel, where the diverging element is disposed in a non-display region of the cover plate and is configured to diverge received light and emit diverged light;
an emission module, configured to emit light, where the emission module is disposed on a non-display side of the display panel and faces the diverging element; and
a receiving module, disposed on the non-display side of the display panel and configured to receive reflected light that is formed by a detection target through reflecting light diverged by the diverging element.
According to a second aspect, an embodiment of this application provides a display device, including the display assembly in the foregoing embodiment.
The following clearly describes the technical solutions in the embodiments in this application with reference to the accompanying drawings in the embodiments of this application. Apparently, the described embodiments are merely some but not all of the embodiments of this application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of this application shall fall within the protection scope of this application.
Terms “first”, “second”, and the like in the specification and claims of this application are used to distinguish similar objects, but are not used to describe a specific sequence or order. It should be understood that the data so used may be interchanged in an appropriate condition, so that the embodiments of this application can be implemented in an order other than those illustrated or described herein. In addition, in this specification and the claims, “and/or” represents at least one of the connected objects, and the character “I” generally indicates an “or” relationship between the associated objects.
A display assembly provided in the embodiments of this application is described below with reference to the accompanying drawings by using embodiments and application scenarios thereof.
Currently, as shown in
As shown in
In other words, the display assembly mainly includes the display panel 10, the cover plate 20, the diverging element 30, the emission module, and the receiving module 40. The cover plate 20 may be a member made of a transparent material, such as a glass plate, and may be disposed on the display side of the display panel 10. The display panel 10 may be protected by the cover plate 20. The diverging element 30 may diverge light incident on the diverging element 30, so that light transmitted from the diverging element 30 has a large angle and can illuminate a large region. The diverging element 30 may be located on the side of the cover plate 20 close to the display panel 10. The diverging element 30 and the display panel 10 are located on the same side of the cover plate 20. The diverging element 30 is disposed on the non-display region of the cover plate 20 and is configured to diverge received light and emit diverged light. The non-display region is a region of the cover plate 20 that is not covered by the display panel 10, that is, the diverging element 30 is disposed on the region of the cover plate 20 that is not covered by the display panel 10. For example, as shown in
The emission module may be configured to emit light, and the light emitted by the transmission module may be transmitted to the diverging element 30. The emission module is disposed on the non-display side of the display panel 10 and faces the diverging element 30. The emission module emits light to the diverging element 30. The diverging element 30 may diverge the light after receiving the light emitted by the emission module. The receiving module 40 is disposed on the non-display side of the display panel 10, and may be configured to receive reflected light that is formed by a detection target through reflecting light diverged by the diverging element 30. The receiving module 40 may include a module lens and a module image sensor, and may receive a light signal through the module lens and the module image sensor. The display assembly may further include a processing module, and the light signal is processed by the processing module. When the detection target is close to a side of the cover plate away from the display panel 10, the detection target starts to reflect light after entering a region of light diverged by the diverging element 30. The receiving module 40 may receive light reflected by the detection target, to perform identification and analysis and make decisions according to the received reflected light. In the display assembly of this application, the light emitted by the emission module to the diverging element is diverged by the diverging element to form a light region with a large angle. Light is diverged from the non-display region of cover plate 20 and does not pass through the display panel 10 during emission. In this way, a light signal loss is reduced and light utilization is increased. The damage to the organic light-emitting material when the light illuminates the display region is reduced, and the color difference in the display effect of the illuminated region is reduced, thereby avoiding serious quality problems and punching on the display panel.
In an application process, as shown in
In some embodiments of this application, the cover plate 20 may be provided with an optical adhesive layer in a region corresponding to the diverging element 30, where the optical adhesive layer may be a transparent optical adhesive layer. The diverging element 30 may be glued on the cover plate 20 by the optical adhesive layer for ease of installing the diverging element 30. The diverging element 30 may also be glued on the cover plate 20 by other highly-transparent glue with high transmittance for the light emitted by the emission module. The light emitted by the emission module can pass through the optical adhesive layer, thereby avoiding a light loss caused by the optical adhesive layer. Alternatively, the diverging element 30 may be integrated with the cover plate 20 to reduce fitting processes and a quantity of devices.
In some embodiments, the emission module may include a light source 50 and an optical component. The light source 50 may be configured to emit light. The optical component may be configured to receive the light emitted by the light source 50, and may transmit the received light to the diverging element 30. After the light is diverged by the diverging element 30, the light transmitted from the diverging element 30 has a large angle and can illuminate a large region.
The emission module further includes a light collimator 51. Collimated light is transmitted from the light collimator 51 after the light emitted by the light source 50 is collimated by the light collimator 51. The light is collimated by the light collimator 51, thereby ensuring that a transmission path of the light is in a fixed region. The optical component adjusts the collimated light. For example, the optical component may adjust a transmission direction of the collimated light, or may cause the collimated light to be displaced/shifted. The optical component may transmit the adjusted light to the diverging element 30.
In some other embodiments of this application, the emission module may include a light source 50, a light collimator 51, and an optical component. The light source 50 may emit light, for example, a laser or an infrared ray. The light source 50 may be a vertical-cavity surface-emitting laser (VCSEL) chip, or an edge emitting laser (EEL) chip. The light emitted by the light source 50 may be transmitted to the light collimator 51. Collimated light may be transmitted after the light emitted by the light source 50 is adjusted by the light collimator 51. The light is collimated by the light collimator 51, thereby ensuring that the transmission path of the light is in the fixed region. The optical component may receive the collimated light from the light collimator 51 and adjust the collimated light. For example, the optical component may adjust the transmission direction of the collimated light, or may cause the collimated light to be displaced/shifted. The optical component transmits the adjusted light to the diverging element 30. The light source 50, the light collimator 51, and the optical component jointly cause the light to be transmitted to the diverging element 30. After being diverged by the diverging element 30, the light is transmitted from the non-display region of the cover plate 20 to form a light region with a large angle for ease of detecting a detection target.
As shown in
In some embodiments, as shown in
Optionally, as shown in
In this embodiment of this application, the emission module may further include a housing structure 54. The light source 50 and the light collimator 51 may be encapsulated in the housing structure 54. The housing structure 54 encapsulates the light source 50 and the light collimator 51 together, which can achieve a good integration effect and help ensure the accuracy of the light transmitted from the light collimator 51. The first prism 52 may be disposed on the non-display side of the display panel 10, glued to the non-display side of the display panel 10 by an optical clear adhesive, and disposed on the display panel 10.
Optionally, the display assembly may further include a frame body 60. The second prism 53 may be disposed on the frame body 60, and the cover plate 20 may be connected to the frame body 60. Alternatively, the receiving module 40 may be disposed on the frame body 60. The light source 50 and the light collimator 51 may be disposed on the frame body 60. The frame body 60 may support and fix other components in the assembly.
In some embodiments of this application, as shown in
In this embodiment of this application, the non-display region of the cover plate 20 may be coated with an ink layer, and the light emitted by the emission module may pass through the ink layer. For example, the light emitted by the emission module is an infrared ray. The infrared ray can pass through the ink layer, thereby avoiding a loss of light caused by the ink layer.
An embodiment of this application further provides a display device, including the display assembly in the foregoing embodiment. In the display device of this application, light emitted by an emission module does not pass through a display panel. In this way, a light signal loss is reduced and light utilization is increased. Damage to an organic light-emitting material when the light illuminates a display region is reduced, thereby improving a display effect and avoiding punching on the display panel.
The embodiments of this application have been described above with reference to the accompanying drawings. This application is not limited to the embodiments described above, and the embodiments described above are merely exemplary and not limitative. Those of ordinary skill in the art may make various variations under the teaching of this application without departing from the spirit of this application and the protection scope of the claims, and such variations shall all fall within the protection scope of this application.
Number | Date | Country | Kind |
---|---|---|---|
202010718348.X | Jul 2020 | CN | national |
This application is a Bypass Continuation application of PCT/CN2021/107765 filed Jul. 22, 2021, and claims priority to Chinese Patent Application No. 202010718348.X filed Jul. 23, 2020, the disclosures of which are hereby incorporated by reference in their entireties.
Number | Date | Country | |
---|---|---|---|
Parent | PCT/CN2021/107765 | Jul 2021 | US |
Child | 18098864 | US |