WO2021008598A1 - Dispositif électronique - Google Patents

Dispositif électronique Download PDF

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Publication number
WO2021008598A1
WO2021008598A1 PCT/CN2020/102575 CN2020102575W WO2021008598A1 WO 2021008598 A1 WO2021008598 A1 WO 2021008598A1 CN 2020102575 W CN2020102575 W CN 2020102575W WO 2021008598 A1 WO2021008598 A1 WO 2021008598A1
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WO
WIPO (PCT)
Prior art keywords
display
display area
optical
electronic device
screen
Prior art date
Application number
PCT/CN2020/102575
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English (en)
Chinese (zh)
Inventor
贾彦峰
Original Assignee
华为技术有限公司
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Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2021008598A1 publication Critical patent/WO2021008598A1/fr

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel

Definitions

  • This application relates to the field of product technology, and in particular to an electronic device.
  • terminal devices with a high screen-to-body ratio such as mobile phones
  • handset openings, front cameras (and flashes), distance and light set on the front of mobile phones and other terminal devices Sensors and other components will occupy a part of the front of the terminal device, thereby reducing the screen-to-body ratio of the terminal device.
  • the camera module such as the front camera (and flash) components can be set up and down.
  • the front camera automatically rises to complete the front camera.
  • it is hidden inside the terminal device, thereby achieving the purpose of increasing the screen ratio of the terminal device.
  • the lifting of the above-mentioned camera module requires a combination of mechanical structure and electronic control.
  • the structure is relatively complicated and the lifting process of the camera module not only requires response time, but is also easily damaged, which has a problem of poor user experience.
  • the embodiments of the present application provide an electronic device to solve the problems of complicated structure, easy damage, and poor user experience in existing devices with high screen-to-body ratio.
  • This application provides an electronic device, including: a transparent cover, a display screen, a light signal sensor, and an optical component;
  • the display screen includes: a first display area attached to the transparent cover, a second display area having an included angle with the plane where the first display area is located, and the second display area is far away from the first display area.
  • the light signal sensor is arranged at one end of a display area, and the optical component is arranged between the light signal sensor and the transparent cover plate;
  • the first display area is used to display a first part of a first display image
  • the second display area is used to display a second part of the first display image
  • the optical assembly is used to perform projection processing on the second part displayed on the second display area, so that the projected second part and the first part form the first display image, and It appears through the transparent cover.
  • the user can observe a full-screen display image, which avoids the complicated structure and easy damage caused by the lifting and lowering of the camera or the camera component and the sliding operation of the sliding cover in the related technology, resulting in user experience Poor problem.
  • the display screen includes any one or a combination of the following: flexible screen and rigid screen;
  • the optical component includes any one of the following: a half lens, a prism, and an optical waveguide.
  • the display screen includes any one or a combination of the following: a liquid crystal display screen and a light emitting diode display screen;
  • the optical component includes any one of the following: a half lens, a prism, and an optical waveguide.
  • the liquid crystal display includes: a liquid crystal on silicon LCoS display, and the light emitting diode display includes an organic light emitting diode AMOLED display.
  • the display screen is a flexible screen
  • the optical component is an optical waveguide
  • the optical waveguide includes: a light guide layer group composed of different colors, and the optical waveguide is used to display the second part of the second display area Conduct branch light transmission.
  • the structure of a flexible screen and an optical waveguide is adopted, and the pixels of different colors of the optical waveguide are respectively arranged in rows, and the waveguide part is used for branched light guide transmission, which also realizes a full screen display and improves user experience.
  • each layer of the optical waveguide is implemented by any one of the following waveguide structures: slab waveguide, strip waveguide or ridge waveguide.
  • the waveguide part of the optical waveguide is used for branched light guide transmission, and each row can adopt a preset waveguide structure to reduce the problem of pixel crosstalk in the row.
  • an optical control film is provided on the side of the second display area close to the transparent cover, and the optical control film is used to increase the light exit angle of the second display area .
  • the optical control film on the side of the second display area close to the transparent cover, on the one hand, the light output angle of the second display area can be increased, and the second part of the first display image can be increased accordingly.
  • the brightness on the other hand, can also control the angle between the light path of the second part and the optical component to control the light exit angle of the second part.
  • the optical control film is a nanoimprinted microprism structure or an optical fiber collimation structure.
  • the electronic device further includes: a processing component
  • the processing component is used to perform distortion compensation processing on the second part that has undergone the projection processing of the optical component, and perform compensation processing on the light intensity passing through the optical signal sensor.
  • the processing component is used to perform algorithmic compensation on the second part of the second display area to solve the problem that the image passing through the second part and the first part of the optical component is upside down.
  • the light of the sensor is compensated to adjust the light path where the light signal sensor is located.
  • the electronic devices include: smart phones, tablet devices, computers, and smart TVs.
  • the electronic device includes a transparent cover plate, a display screen, a light signal sensor, and an optical component
  • the display screen includes: a first display area attached to the transparent cover plate, and a first display area
  • the plane has a second display area with an included angle, and an end of the second display area far from the first display area is provided with a light signal sensor, and the optical component is fixed between the light signal sensor and the transparent cover.
  • the first display area is used to display the first part of the first display image
  • the second display area is used to display the second part of the first display image.
  • the optical assembly can perform projection processing on the second part displayed on the second display area , So that the projected second part and the first part form a first display image, which is presented through the transparent cover.
  • the user can observe the full-screen display image, which avoids the complicated structure and easy damage caused by the lifting of the camera or the camera component and the sliding operation of the sliding cover in the related technology, resulting in poor user experience The problem.
  • FIG. 1 is a schematic diagram of the front camera of a mobile phone in the related art as a lifting structure
  • FIG. 2 is a schematic diagram of the camera module of the mobile phone in the related art as a lifting structure
  • Figure 3 is a structural schematic diagram of a mobile phone adopting a sliding full screen in related technologies
  • FIG. 4 is a schematic diagram of part of the structure of an electronic device provided by an embodiment of the application.
  • FIG. 5 is a schematic diagram of the principle of an optical control film in an embodiment of the application.
  • Fig. 6 is a schematic diagram of another optical control film in an embodiment of the application.
  • FIG. 7 is a schematic diagram of the principle of yet another optical control film in an embodiment of the application.
  • FIG. 8 is a schematic structural diagram of a possible design of an electronic device provided by an embodiment of this application.
  • FIG. 9 is an oblique view of the positions of the display screen, the half lens, and the optical signal sensor in the electronic device shown in FIG. 8;
  • FIG. 10 is a schematic structural diagram of another possible design of an electronic device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of another possible design of an electronic device provided by an embodiment of this application.
  • FIG. 12 is an oblique view of the positions of the display screen, the optical waveguide, and the optical signal sensor in the electronic device shown in FIG. 11;
  • FIG. 13 is a schematic diagram of the distribution of different color pixels of the display screen in FIG. 12;
  • Fig. 14 is a schematic diagram of the optical path of the optical waveguide in the embodiment shown in Fig. 12.
  • full screen is a relatively broad definition of the mobile phone industry’s design of ultra-high screen-to-body mobile phones.
  • the literal interpretation is that all the fronts of mobile phones are The screen and the four frame positions of the mobile phone are all frameless designs, pursuing a screen-to-body ratio close to 100%.
  • the full-screen mobile phone claimed by the industry is only a mobile phone with an ultra-high screen-to-body ratio for the time being. There is no mobile phone that can achieve a 100% front screen ratio.
  • the front camera or camera module is usually made into a lifting structure, and the mobile phone is made into a sliding screen structure.
  • FIG. 1 is a schematic diagram of the front camera of a mobile phone in the related art as a lifting structure.
  • the front camera of the mobile phone is made up and down using the idea of moving components, that is, when the front camera function is not used, the front camera is hidden in the mobile phone, and the front camera function is required. , The front camera will automatically rise to complete the front camera, through this technology can be made into a full screen mobile phone with a screen ratio of 91.24%.
  • the realization principle of the lifting structure of the front camera or camera module is to precisely control the lifting stroke of the mechanical components of the front camera through a micro stepping motor, an independent driver IC, and cooperation with a precision control algorithm.
  • the hardware device responsible for mechanical transmission consists of three parts: a stepping motor, a reduction gear box and a drive screw.
  • Each lift of the front camera or camera module relies on the twisting of the stepping motor to generate power, and the precision gearbox is used to amplify the torque and drive the screw to rotate to provide sufficient transmission force to drive the front camera to complete the lifting and The action of landing and recycling.
  • FIG. 2 is a schematic diagram of the camera module of the mobile phone in the related art as a lifting structure.
  • a dual-track periscope structure namely a fully hidden 3D camera, is used to integrate 3D-structured optical components, front cameras, earpieces, and rear dual cameras. All are hidden inside the dual-track periscope structure.
  • the phone will automatically rise when you pick up the phone, and it will automatically be recycled after the phone is unlocked.
  • the design of the front camera or camera module lifting and lowering requires the combination of mechanical structure and electronic control. Not only is the structure complicated, but the mechanical structure requires a response time (for example, about 800ms) during the expansion and contraction process, which is easily damaged.
  • the pop-up camera The dustproof and waterproof capability is relatively weak, and the pop-up camera itself is large in size, and the required motor and other structures occupy too much body space, which makes the existing terminal relatively bulky and reduces the user experience.
  • FIG. 3 is a structural diagram of a mobile phone adopting a sliding cover full screen in related technologies.
  • the front camera/earpiece/sensor, etc. are placed under the display.
  • the user manually slides down the display screen, and the device under the screen is leaked to achieve the corresponding Features.
  • the maturity and stability of the sliding cover structure in this way has been verified and optimized to the extreme.
  • the performance of the under-screen devices has not been reduced due to volume limitations, but the sliding cover technology separates the overall structure of the phone from the display part and the screen.
  • the sliding cover structure reduces the convenience of the user interface UI, which reduces the user experience.
  • an embodiment of the present application provides an electronic device, including a transparent cover, a display screen, a light signal sensor, and an optical component
  • the display screen includes: and a transparent cover
  • the laminated first display area, the second display area having an included angle with the plane where the first display area is located, and an optical signal sensor is provided at the end of the second display area far from the first display area, and the optical component is fixed on the light
  • the first display area is used to display the first part of the first display image
  • the second display area is used to display the second part of the first display image.
  • the optical assembly can The second part displayed on the second display area is subjected to projection processing, so that the projected second part and the first part form a first display image, which is presented through the transparent cover.
  • this embodiment adds The optical component allows the user to observe the full-screen display image, avoiding the problem of complex structure and easy damage caused by the lifting and lowering of the camera or the camera component and the sliding operation of the sliding cover in the related technology, resulting in poor user experience.
  • “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone.
  • the character “/” generally indicates that the associated objects are in an "or” relationship.
  • FIG. 4 is a schematic diagram of a part of the structure of an electronic device provided by an embodiment of the application.
  • an electronic device will include a housing 41.
  • the electronic device may also include a transparent cover 42, a display screen 43, a light signal sensor 44 and an optical component 45.
  • the transparent cover 42 may be wrapped by the terminal housing 41, and the display screen 43 may be arranged between the transparent cover 42 and the terminal housing 41.
  • the display screen 43 includes: a first display area 431 adhered to the transparent cover 42, a second display area 432 having an angle with the plane where the first display area 431 is located, and the second display
  • the optical signal sensor 44 is disposed at an end of the area 432 far away from the first display area 431, and the optical component 45 is disposed between the optical signal sensor 44 and the transparent cover 42.
  • the first display area 431 may be used to display the first part of the first display image
  • the second display area 432 may be used to display the second part of the first display image
  • the optical assembly 45 is used for projecting the second part displayed on the second display area 432 so that the projected second part and the first part form a first display image, which is presented through the transparent cover 42.
  • the first display image may be a display image of the electronic device, and the "first" is only used to indicate a display image, and does not indicate a sequence. In other cases, other terms may also be used for expression, which are not limited here.
  • the display screen 43 can be realized by using an independent flexible display substrate, or by splicing two independent display substrates, that is, the first display area 431 and the second display area 432 can be located on a flexible display substrate. It can also be located on two independent display substrates.
  • the embodiment of the present application does not limit the included angle between the first display area 431 and the second display area 432, which can be determined according to the actual conditions such as the type, shape, and attributes of the optical component 45, and will not be omitted here. Repeat.
  • the light signal sensor 44 may be a camera module or a sensor, for example, a proximity light sensor, a structured light sensor, etc.
  • the embodiment of the present application does not limit the specific manifestation of the optical signal sensor, which can be determined according to actual conditions.
  • the optical signal sensor 44 is located between the second display area 432 and the terminal housing 41, and is located under the transparent cover 42 and the optical assembly 45, that is, the optical signal sensor 44 is located between the optical assembly 45 and the terminal Between the rear shells 41, the reflected light from ambient light or infrared radiation (IR) projected by the external environment still retains a certain proportion of light intensity after passing through the optical component 45, which can be used for the imaging requirements of the optical signal sensor 44.
  • IR infrared radiation
  • the electronic device may further include a processing component, and the processing component may display the first display image based on a display instruction issued by the user through the display screen 43 corresponding to the user interaction interface.
  • the first The display image may include a first part displayed in the first display area 431 and a second part displayed in the second display area 432 during the display process.
  • the first part can be presented through the transparent cover plate 42 through the light path 1, and the second part needs to be projected (for example, reflected or refracted) through the optical component 45, that is, through the light path 2 and presented through the transparent cover plate 42.
  • the second display area 432 and the plane where the transparent cover 42 is located have an included angle, the second part displayed in the second display area 432 after being projected by the optical assembly 45 can be compared with the first part displayed in the first display area 431 The complete first display image is displayed to the user.
  • the transparent cover plate 42 may be a cover glass (CG), which is mainly used to protect the others in the housing 41 from external damage and can project the image displayed on the display screen 43.
  • CG cover glass
  • the specific implementation of the cover plate 42 can be determined according to actual conditions, and will not be repeated here.
  • the electronic device of this embodiment is realized by the principle of the display screen 43 (a flexible display component or two independent display components) + an optical assembly 45 including a first display area 431 and a second display area 432, wherein Since the first display area 431 of the display screen 43 is directly attached to the transparent cover plate 42, the first part displayed by the first display area 431 can be directly presented through the transparent cover plate 42.
  • the second display area 432 is attached to the optical component 45, so that the second part displayed by the second display area 432 is projected by the optical component and transmitted by the transparent cover 42.
  • one display substrate is used to display the first part of the first display image
  • the other display substrate is used to display the second part of the first display image.
  • the display functions of the first part and the second part are only a description of the embodiment of the present application, and the display image determined from the perspective of the processing component of the electronic device and the user is a complete display image.
  • the optical component 45 can not only adjust the light path 2 corresponding to the second part of the first display image, but also provide a passage function for the external ambient light, that is, the light path 3, so as to meet the requirements of the camera assembly and the camera under the transparent cover 42.
  • the light path after passing through the optical component 45 is the light path 3', as shown in FIG. 4 for details.
  • the electronic device may include terminal devices such as smart phones, tablet devices, computers, etc., or electronic devices such as smart TVs. That is, the technical solution of the present application can not only be applied to terminals such as tablets and computers.
  • the product field can also be applied to the field of electronic products such as televisions to achieve the purpose of high screen-to-body ratio.
  • the embodiment of the present application does not limit the specific form of the electronic device, which can be determined according to actual conditions.
  • the electronic device includes a transparent cover, a display screen, a light signal sensor, and an optical component
  • the display screen includes: a first display area attached to the transparent cover, and a plane where the first display area is located There is a second display area with an included angle, and an end of the second display area far away from the first display area is provided with a light signal sensor, and the optical component is fixed between the light signal sensor and the transparent cover.
  • the first A display area is used to display the first part of the first display image
  • the second display area is used to display the second part of the first display image.
  • the optical assembly can perform projection processing on the second part displayed on the second display area, So that the projected second part and the first part form a first display image, which is presented through the transparent cover plate.
  • the user can observe the full-screen display image, which avoids the complicated structure and easy damage caused by the lifting of the camera or the camera component and the sliding operation of the sliding cover in the related technology, resulting in poor user experience The problem.
  • the aforementioned display screen 43 may include any one or a combination of the following: a flexible screen and a rigid screen.
  • the above-mentioned optical component 45 includes any one of the following: a half lens, a prism, and an optical waveguide.
  • the display screen includes any one or a combination of two of the following: liquid crystal display (LCD), light emitting diode (LED) display;
  • LCD liquid crystal display
  • LED light emitting diode
  • the optical component includes any one of the following: a half lens, a prism, and an optical waveguide.
  • the liquid crystal display includes: a silicon-based liquid crystal LCoS display
  • the light-emitting diode display includes: an organic light-emitting diode AMOLED display.
  • the display screen 43 in this embodiment may include a flexible screen and a rigid screen.
  • the display screen 43 in this embodiment may include a liquid crystal display screen and a light emitting diode display screen.
  • the flexible screen can be a flexible (Flexible) active-matrix organic light emitting diode (AMOLED) display
  • the rigid screen can be a rigid (Rigid) AMOLED display
  • a liquid crystal display liquid crystal display
  • the LCD may include a liquid crystal on silicon (LCoS) display screen, which is a reflective micro liquid crystal projection display screen.
  • LCD liquid crystal on silicon
  • the foregoing display screen may be implemented by a single Flexible AMOLED.
  • the display screen 43 and the optical component 45 of the electronic device may be designed with the combination of a flexible screen and a half lens, a combination of a flexible screen and a prism, a combination of a flexible screen and an optical waveguide, etc.
  • a flexible screen and a half lens a combination of a flexible screen and a prism
  • a combination of a flexible screen and an optical waveguide etc.
  • the realization principle of the combination of flexible screen and semi-lens please refer to the description of the embodiment shown in Figs. 8 and 9 below.
  • the specific realization principle of the combination of flexible screen and prism refer to the description of the embodiment shown in Fig. 10
  • the specific implementation principle of the combination of the flexible screen and the optical waveguide can be referred to the description of the embodiments shown in FIG. 11 to FIG. 13 below, and details are not repeated here.
  • the semi-lens can perform reflection processing on the second portion displayed in the second display area, and the second portion after the reflection processing can be presented through the transparent cover 42.
  • the prism can perform refraction processing on the second portion displayed in the second display area, and the second portion after the refraction processing can also be presented through the transparent cover 42.
  • the optical waveguide the second part of the light is subjected to branch processing, and then appears through the transparent cover 42.
  • an optical control film 46 is provided on the side of the second display area 432 close to the transparent cover 42.
  • the optical control film 46 is used to improve the 2.
  • the optical control film is a nano-imprinted microprism structure or an optical fiber collimation structure.
  • FIG. 5 is a schematic diagram of the principle of an optical control film in an embodiment of the application.
  • the light wave control film can be a nano-imprinted microprism structure, which is similar to a regular sawtooth structure, and its function is mainly for light collection.
  • the optical control film 46 may also be an optical fiber collimating structure, which may also collimate the emitted light from the optical fiber into an approximately parallel beam with a very small divergence angle or converge the parallel beam into the optical fiber, thereby To improve the coupling efficiency of the optical control film 46.
  • FIG. 6 is a schematic diagram of another optical control film in an embodiment of the application.
  • the main element of the optical control film 46 of the fiber collimation structure can be a C-lens, which has the advantages of low cost, low insertion loss at long working distance, and large working distance range.
  • FIG. 7 is a schematic diagram of the principle of yet another optical control film in an embodiment of the application.
  • the main element of the optical control film 46 of the fiber collimation structure may be grating collimation, which is a photoelectric detection element made by light projection and diffraction.
  • the optical control film 46 on the side of the second display area 432 close to the transparent cover plate 42, on the one hand, the light exit angle of the second display area 432 can be increased, and the first display image can be increased accordingly.
  • the brightness of the second part on the other hand, can also control the angle between the light path of the second part and the optical assembly 45 to control the light output angle of the second part.
  • optical control film 46 in the embodiment of the present application is not limited to the realization of the above-mentioned principle (microprism structure, C-lens, grating collimation, etc.), and it can also adopt other principle structures, specifically adopting The structure of can be determined according to the actual situation and will not be repeated here.
  • the electronic device may further include: a processing component.
  • the processing component is used to perform distortion compensation processing on the second part that has been projected by the optical component 45, and perform compensation processing on the light intensity passing through the optical signal sensor 44.
  • FIG. 8 is a schematic structural diagram of a possible design of an electronic device provided in an embodiment of this application.
  • FIG. 9 is an oblique view of the positions of the display screen, the half lens, and the optical signal sensor in the electronic device shown in FIG. 8.
  • the electronic device of this embodiment adopts a flexible screen and a half-lens architecture.
  • the display screen 43 is a flexible AMOLED display screen
  • the first display area 431 is used to display the first part of the first display image
  • the second display area 432 is used to display the second part of the first display image
  • the optical assembly 45 is a half lens.
  • an optical control film 46 is provided on the coupling portion of the optical component 45, that is, on the side of the second display area 432 close to the transparent cover plate 42, so as to utilize the optical control film 46 to control the light output angle of the flexible AMOLED, thereby increasing the brightness, and the optical control film 46 can also be angled with the half lens to control the projection angle of the light path 2 where the second part is located.
  • the external ambient light or the reflected light after IR projection still retains a certain proportion of light intensity (light path 3') after passing through the half lens for the imaging requirements of the optical signal sensor 44.
  • the electronic device of this embodiment can also perform the second display area 432 The second part of the display is compensated so that the second part can form a complete display image with the first part after being reflected by the semi-lens, and it will be presented through the transparent cover 42.
  • the electronic device provided by the embodiments of the present application is used in combination with a flexible screen and a half-lens, so that the second part of the second display area formed on the flexible screen can be reflected by the half-lens to be combined with the first part of the first display area.
  • a complete display image is formed so that the electronic device that the user observes is a full-screen display, which reduces the structural complexity of the electronic device, reduces the probability of damage to the electronic device, increases the service life of the electronic device, and improves the user experience.
  • FIG. 10 is a schematic structural diagram of another possible design of an electronic device provided in an embodiment of this application.
  • the electronic device of this embodiment is implemented using a flexible screen and prism architecture.
  • the prism may be a triangular prism.
  • this embodiment is similar to the embodiment shown in FIG. 8.
  • the display screen 43 still uses a flexible AMOLED display screen, and the first display area 431 is used to display the first part of the first display image.
  • the second display area 432 is used to display the second part of the first display image, but in this embodiment, the optical assembly 45 uses a triangular prism.
  • an optical control film 46 is added to the coupling portion of the optical component 45, that is, the side of the second display area 432 close to the transparent cover 42 to utilize the optical control film 46
  • the light output angle of the flexible AMOLED display screen is controlled to increase the brightness.
  • the optical control film 46 can be used to control the second The exit angle of the part of the light path.
  • the incident angle is smaller than the total reflection angle, so the refraction formed light path 3'can be used for the camera module and each The imaging requirements of the optical signal sensor 44 such as various sensors.
  • the electronic device since the second part of the image displayed by the second display area 432 after the prism reflection process and the unprocessed image are upside down, in this embodiment, the electronic device also uses a processing component to The two parts are compensated, so that the second part can form a complete display image with the first part after being reflected by the prism.
  • the optical path under the transparent cover plate 42 where the optical signal sensor 44 is located after being refracted by the prism may cause problems such as distortion and lower light transmittance, it is also necessary to adjust and/or adjust the optical path through the prism in this embodiment. Compensation treatment.
  • the electronic device provided by the embodiments of the present application is used in combination with a flexible screen and a triangular prism, so that the second part of the second display area formed on the flexible screen is formed by the refraction process of the triangular prism and the first part displayed in the first display area
  • the complete first display image is presented so that the user can observe the electronic device as a full-screen display, avoiding the lifting structure of the optical signal sensor or the sliding cover structure of the electronic device, and reducing the structural complexity and the probability of damage to the electronic device , Improve the user experience.
  • FIG. 11 is a schematic structural diagram of another possible design of an electronic device provided by an embodiment of this application
  • FIG. 12 is a display screen and light in the electronic device shown in FIG. An oblique view of the position of the waveguide and the optical signal sensor.
  • FIG. 13 is a schematic diagram of the distribution of different color pixels of the display screen in FIG. 12.
  • Fig. 14 is a schematic diagram of the optical path of the optical waveguide in the embodiment shown in Fig. 12.
  • the display screen 43 of the electronic device is a flexible screen
  • the optical component 45 is an optical waveguide.
  • an optical waveguide is a dielectric device that guides light waves to propagate in it, and is also called a dielectric optical waveguide.
  • the pixels of different colors in the second display area 432 on the flexible screen are arranged in rows, and the optical waveguide includes: a light guide layer group composed of different colors, and the optical waveguide is used to display the The second part on the second display area 432 performs branch light transmission.
  • this embodiment is similar to the embodiment shown in FIGS. 8 and 10, as shown in FIGS. 11 and 12, the display screen 43 still uses a flexible AMOLED display screen, and the first display area 431 is used to display the first display The first part of the image, the second display area 432 is used to display the second part of the first display image.
  • the optical component 45 is realized by an optical waveguide.
  • the pixels of different colors in the second display area are arranged in rows.
  • the pixels of different colors in the second display area are arranged in a special manner, for example, red and green.
  • the blue R/G/B pixels are arranged in rows on the second display area.
  • the optical component 45 is composed of a coupling-in part, a waveguide part, and a coupling-out part of an optical waveguide.
  • the coupling part of the optical waveguide is responsible for the second part of the display light collection.
  • the pixels in the second part can be specially arranged, for example, composed of red, green and blue R/G/B
  • the light guide layer components are arranged in rows. Exemplarily, as shown in FIG. 14, the red, green and blue R/G/B are arranged in rows on a horizontal plane. It is understandable that the red, green and blue R/G/B can also be arranged in vertical planes in rows, which will not be repeated here.
  • each row of the optical waveguide is used for branched light guide transmission, and each row can adopt a preset waveguide structure to reduce the problem of pixel crosstalk in the row.
  • each row of the optical waveguide in this embodiment is implemented by any one of the following waveguide structures: slab waveguide, strip waveguide or ridge waveguide.
  • the optical waveguide of this embodiment is a planar optical waveguide, which can be divided into a slab waveguide, a strip waveguide or a ridge waveguide according to the shape.
  • the slab waveguide is a waveguide structure with the simplest geometric shape among the optical waveguides. It does not impose any restriction on the light wave field in the lateral direction, and only restricts the light wave field in the lateral direction.
  • the strip waveguide can limit the current and the square, and can improve the modulation characteristics.
  • a ridge waveguide is a special strip waveguide, which is a vertical and planar convex strip made on a thin layer similar to a slab waveguide. The convex strip and the thin layer are composed of the same material, so that the optical field can be thinned. Spread simultaneously in layers and ribs. No matter which waveguide structure is adopted, the loss and noise of the optical path where the second part is located can be minimized.
  • the out-coupling part of the optical waveguide is responsible for guiding the second part of the light at a specific angle.
  • an optical control film 46 is also provided on the side of the second display area 432 close to the transparent cover 42 to control the light output angle of the flexible AMOLED display screen, thereby increasing the brightness.
  • ambient light or reflected light (light path 3) after IR projection passes through the optical component 45 and forms an optical path 3'through the optical waveguide, which can be used for the camera module and various sensors under the transparent cover 42 Wait for the imaging requirements of the light signal sensor 44.
  • the electronic device provided by the embodiments of the present application adopts the structure of a flexible screen and an optical waveguide, and the pixels of different colors of the optical waveguide are respectively arranged in rows, and the waveguide part is used for branched optical transmission, which also realizes a full screen display and improves user experience.
  • the optical component 45 may also adopt a grating-type waveguide, for example, in the form of mosaic.
  • mosaic refers to a currently widely used image processing method.
  • I will not repeat it here.
  • the embodiments of the present application provide a full-screen display technology for electronic devices.
  • a new display technology that combines different parts of the first display image is realized, so that users of electronic devices can observe and obtain a full-screen display.
  • Display at the same time, it can ensure the imaging function of the light signal sensor under the transparent cover, remove the complicated structure design such as automatic lifting/manual sliding cover, and improve the user experience.
  • At least one refers to one or more, and “multiple” refers to two or more.
  • “And/or” describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects before and after are in an “or” relationship; in the formula, the character “/” indicates that the associated objects before and after are in a “division” relationship.
  • “The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a).
  • at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or multiple One.
  • the size of the sequence numbers of the foregoing processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not be implemented in this application.
  • the implementation process of the example constitutes any limitation.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

La présente invention concerne un dispositif électronique. Le dispositif électronique comprend : une plaque de recouvrement transparente, un écran d'affichage, un capteur de signal optique, et un composant optique, l'écran d'affichage comprenant : une première zone d'affichage qui s'adapte à la plaque de recouvrement transparente, et une seconde zone d'affichage qui a un angle inclus avec un plan dans lequel la première zone d'affichage est située ; le capteur de signal optique est disposé à l'extrémité, loin de la première zone d'affichage, dans la deuxième zone d'affichage ; le composant optique est fixé entre le capteur de signal optique et la plaque de recouvrement transparente ; la première zone d'affichage est utilisée pour afficher une première partie d'une première image d'affichage ; la seconde zone d'affichage est utilisée pour afficher une seconde partie de la première image d'affichage ; et le composant optique est utilisé pour effectuer un traitement de projection sur la seconde partie affichée sur la seconde zone d'affichage, de telle sorte que la seconde partie projetée et la première partie forment la première image d'affichage, et la première image d'affichage est présentée à travers la plaque de recouvrement transparente. Selon la solution technique, par l'ajout du composant optique, un utilisateur peut observer une image d'affichage affichée en plein écran. Le dispositif électronique présente une structure simple, est facile à installer, et améliore l'expérience de l'utilisateur.
PCT/CN2020/102575 2019-07-17 2020-07-17 Dispositif électronique WO2021008598A1 (fr)

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CN111770261A (zh) * 2020-08-12 2020-10-13 上海摩勤智能技术有限公司 一种摄像模组及移动终端
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