WO2021213022A1 - Module d'affichage, ensemble d'affichage et dispositif électronique - Google Patents

Module d'affichage, ensemble d'affichage et dispositif électronique Download PDF

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Publication number
WO2021213022A1
WO2021213022A1 PCT/CN2021/079580 CN2021079580W WO2021213022A1 WO 2021213022 A1 WO2021213022 A1 WO 2021213022A1 CN 2021079580 W CN2021079580 W CN 2021079580W WO 2021213022 A1 WO2021213022 A1 WO 2021213022A1
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WO
WIPO (PCT)
Prior art keywords
main body
optical structure
screen
display
optical
Prior art date
Application number
PCT/CN2021/079580
Other languages
English (en)
Chinese (zh)
Inventor
崔志佳
孙舟
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Publication of WO2021213022A1 publication Critical patent/WO2021213022A1/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
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED

Definitions

  • the present disclosure relates to the technical field of mobile terminals, and in particular to a display module, a display assembly and an electronic device.
  • the LCD (Liquid Crystal Display, liquid crystal display) industry has entered a mature stage.
  • Flexible OLED (Organic Light-Emitting Diode) displays are a new development direction in the future display industry. The flexible characteristics of flexible OLED displays are constantly being developed and utilized. .
  • curved screens gradually become mainstream display screens, curved screens that are bent at a large angle will also become the development trend of subsequent electronic devices.
  • the curved screen can realize the front and side display of the product, because part of the image is displayed in the side area, it does not fully reflect the advantages of the large-screen display, but also affects the integrity of the image display, resulting in a poor user experience.
  • the present disclosure provides a display module, which includes a flexible display screen, a cover plate, and an optical structure.
  • the bent portion can be used for displaying images;
  • the cover plate is arranged on the flexible display screen, and the cover plate includes a cover plate main body and a bent portion bent and extended outward from the side of the cover plate main body;
  • the cover plate The main body is attached to the surface of the screen main body, the bending part is arranged on the outside of the bending part;
  • the optical structure is arranged on the inside of the cover plate, and is arranged on the bending part and the bending part
  • the optical structure has a transparent surface and a reflective surface, and the transparent surface of the optical structure is opposite to the light emitting surface of the bending portion, so that the original display screen of the bending portion passes through the optical structure
  • the reflection of the reflective surface is formed on the outside of the screen main body to form a floating display screen, and the floating display screen and the display screen of the screen main body are located on the same plane.
  • the present disclosure also provides a display assembly, which includes the above-mentioned display module and a backlight module, and the backlight module is used to provide backlight to the display module.
  • the present disclosure also provides an electronic device, which includes a housing and the above-mentioned display assembly, and the display assembly is arranged on the housing.
  • FIG. 1 is a schematic structural diagram of an embodiment of an electronic device of the present disclosure
  • FIG. 2 is a cross-sectional view of an embodiment of the display module of the present disclosure
  • FIG. 3 is an enlarged view of the end structure of the display module shown in FIG. 2;
  • FIG. 4 is a schematic structural diagram of an optical structure in the display module shown in FIG. 2;
  • FIG. 5 is a schematic diagram of the use state of the optical structure shown in FIG. 4;
  • FIG. 6 is a schematic structural diagram of the optical module of the optical structure shown in FIG. 4;
  • FIG. 7 is a schematic diagram of the structure of the main body in the optical module shown in FIG. 6.
  • Optical structure 100, electronic equipment; 10, display module; 11, flexible display screen; 111, screen main body; 112, bending part; 12, cover plate; 121, cover plate main body; 122, bending part; 14.
  • the electronic device involved in the embodiments of the present application may be any terminal device with communication, storage, and display functions, such as smart phones, tablet computers, notebook computers, e-readers, vehicle-mounted devices, wearable devices, and so on.
  • the electronic device 100 of this embodiment includes a display module 10 and a housing 20.
  • the housing 20 may include a frame and a back cover, and the frame is arranged around the edge of the back cover.
  • the display module 10 is disposed on the side of the frame away from the rear cover, and the display module 10 and the casing 20 are jointly enclosed to form an accommodating space of the electronic device 100.
  • the electronic device 100 further includes a camera, and the camera is arranged in the accommodating space. Arranging the camera inside the electronic device 100 can prevent the camera from occupying the space of the display module 10, and there is no need to open an installation slot in the display module 10, which can effectively increase the screen-to-body ratio of the electronic device 100, thereby facilitating the realization of the electronic device 100 Full screen design.
  • an ambient light sensor, a proximity light sensor, or an optical fingerprint sensor can also be arranged in the accommodating space of the electronic device 100 to realize the corresponding light sensing and fingerprint recognition functions while ensuring the full screen design of the electronic device 100.
  • the electronic device 100 may also include a motherboard and a backlight module.
  • the main board is arranged in the accommodating space, the main board is the main control element of the entire electronic device 100, and the camera is electrically connected to the main board.
  • the backlight module is arranged in the accommodating space of the electronic device 100, and the backlight module is stacked with the display module 10 and is used to provide a backlight source for the display module 10.
  • the display module 10 of this embodiment includes a flexible display screen 11, a cover plate 12 and an optical structure 14.
  • the flexible display screen 11 includes a screen main body 111 and a bending portion 112 bent and arranged on the side of the screen main body 111, and both the screen main body 111 and the bending portion 112 can be used for displaying images.
  • the cover plate 12 is disposed on the flexible display screen 11, and the cover plate 12 includes a cover plate main body 121 and a bent portion 122 extending outwardly from the sides of the cover plate main body 121.
  • the cover main body 121 is attached to the surface of the screen main body 111, and the bending part 122 is arranged outside the bending part 112.
  • the optical structure 14 is arranged on the inner side of the cover plate 12 and arranged between the bent portion 112 and the bent portion 122.
  • the optical structure 14 has a light-transmitting surface and a reflective surface.
  • the light-transmitting surface of the optical structure 14 is opposite to the light-emitting surface of the bending portion 112, so that the original display image of the bending portion 112 is reflected by the reflective surface of the optical structure 14.
  • a floating display screen 200 is formed on the outside of the screen main body 111, and the floating display screen 200 and the display screen of the screen main body 111 are located on the same plane.
  • the flexible display screen 11 of this embodiment is made of flexible materials.
  • the flexible display screen 11 includes a substrate layer, a polarizer disposed on the substrate layer, and a display layer disposed between the substrate layer and the polarizer.
  • the substrate layer is the carrier of the display layer and the polarizer.
  • the substrate layer may be LTPS (low temperature polysilicon) glass.
  • LTPS glass is a polysilicon structure formed by projecting a laser onto a glass substrate with an amorphous silicon structure so that the glass substrate with an amorphous silicon structure absorbs laser energy.
  • the substrate layer is formed of LTPS glass, which enables the flexible display screen 11 of this embodiment to have the advantages of high resolution, high brightness, and sensitive response, so as to effectively enhance the use characteristics of the electronic device 100.
  • the substrate layer 11 of this embodiment can also be TFT glass.
  • the polarizer is arranged above the display layer, which can control the polarization direction of a specific light beam, and is used to convert the light beam generated by the light source into polarized light, and form a contrast between light and dark, thereby generating a display image, which can be implemented in conjunction with other components of the flexible display screen 11. Display of color images.
  • the display layer includes a metal cathode layer, a color resist layer, a metal anode layer, and metal wiring.
  • the color resist layer is arranged between the metal cathode layer and the metal anode layer, and the metal wiring is inserted between the metal anode layer or arranged under the metal anode layer.
  • the metal cathode layer has a light transmittance of 50%, and there are light-transmitting positions on the edges of the metal traces.
  • the color resist layer of this embodiment includes a plurality of color resist blocks, the plurality of color resist blocks are arranged in a matrix, and there is a space between two adjacent color resist blocks.
  • the multiple color resist blocks of the color resist layer include R (red) color resist, G (green) color resist, and B (blue) color resist.
  • R color resist, G color resist, and B color resist can filter white light into three primary colors, so that the flexible display screen 11 forms a color display screen.
  • the metal anode layer includes a plurality of metal anode blocks.
  • Each metal anode block is arranged corresponding to a color resist block, that is, the interval between the metal anode layer and the color resist layer is also provided with an interval.
  • the light can pass through the transparent metal cathode layer, pass through the gap between the color resist layer and the metal anode layer, and pass through the edge position of the metal wiring, so as to realize the light transmission of the flexible display screen 11.
  • the flexible display screen 11 of this embodiment may also include an encapsulation layer.
  • the encapsulation layer can be made of glass, and the encapsulation layer is arranged between the polarizer and the display layer.
  • the packaging layer and the substrate layer can be integrated to reduce the overall thickness of the flexible display screen 11.
  • cover plate 12 is arranged above the flexible display screen 11 to protect the flexible display screen 11 from external influences and interferences, and to ensure the better display function and human-computer interaction function of the flexible display screen 11.
  • the cover plate 12 of this embodiment is made of a transparent material, such as curved glass.
  • the curved glass can be formed by large-angle hot bending and welding to enhance the sense of unity of the cover plate 12.
  • the cover 12 includes a cover main body 121 and a bent portion 122, and the bent portion 122 is formed by bending and extending the side of the cover main body 121 outward.
  • the cover plate 12 has a square structure and has four sides facing each other in pairs.
  • the bent portion 122 can be provided on any one side of the cover plate 12, or on two opposite sides, or on two adjacent sides, or on any three sides, or Set on four sides.
  • cover plate 12 can also have other shapes, as long as it can ensure the protection of the cover plate 12 to the flexible display screen 11 and ensure that the cover plate 12 forms a bend at the side of the flexible display screen 11 outside. Department 122 is sufficient.
  • the cover plate main body 121 is attached to the surface of the screen main body 111, and the bent portion 122 is arranged on the outside of the bent portion 112, that is, the flexible display screen 11 is arranged on the inner side of the bent portion 122 .
  • the optical structure 14 of this embodiment includes a plurality of optical modules 140, the plurality of optical modules 140 are arranged in a matrix, and each optical module 140 includes a main body 141 and a reflective part 142.
  • the specific structure of the optical module 140 of this embodiment is shown in FIG. 6.
  • the reflection part 142 on the end surface 1411 of the main body part 141 is not shown in FIGS. 4 and 5 out.
  • the reflecting part 142 can reflect light.
  • the main body 141 is made of a transparent material and can transmit light.
  • the main body 141 has a rectangular parallelepiped structure, and its surface includes a pair of opposite end faces 1411, two relatively parallel first side faces 1412, and two relatively parallel second side faces 1413.
  • the reflection part 142 is provided and covers the two end faces 1411 and the two first side faces 1412 of the main body part 141.
  • the area of the reflection portion 142 is adapted to the area of the end surface 1411 of the main body portion 141 and the area of the first side surface 1412.
  • the surface of the reflective portion 142 constitutes the reflective surface of the optical structure 14, and the second side surface 1413 of the main body portion 141 constitutes the transmissive surface of the optical structure 14, that is, each optical module 140 has four reflective surfaces and a pair of parallel transmissive surfaces. noodle.
  • each row of the optical structure 14 of this embodiment a plurality of optical modules 140 are successively attached and fixed by the end surface 1411 of the main body 141 covered with the reflecting part 142, and each column of the optical structure 14 is a plurality of optical modules 140 covered by the main body 141.
  • the first side surface 1412 with the reflection part 142 is bonded and fixed.
  • the outer peripheral side surfaces of the formed optical structure 14 are reflective surfaces, the opposite side surfaces are transparent, and the opposite two side surfaces of the optical modules 140 in each row are reflective surfaces.
  • the transparent surface of the optical structure 14 is opposite to the light-emitting surface of the bent portion 112.
  • the light from various angles on the bending portion 112 can pass through the transparent light-transmitting surface of the optical structure 14 to enter the interior of each optical module 140.
  • the light reaches the reflective portion 142 of each optical module 140 and then passes through the optical module 140 through reflection. , To converge and image on the outside of the screen main body 111.
  • the three-dimensional light of the original display screen on the bent portion 112 can be converged to the same point on the outside of the screen body 111, thereby forming a suspension on the outside of the cover plate 12.
  • the screen 200 is displayed, and the floating display screen 200 and the display screen of the screen main body 111 are located on the same plane.
  • the floating display screen 200 and the original display screen are in a symmetrical relationship with respect to the plane where the optical structure 14 is located, so that the user can see the floating display screen 200 from various angles.
  • the reflective portion 142 may also be provided and covered only on the two end surfaces 1411 of the main body portion 141.
  • the surface of the reflective portion 142 constitutes the reflective surface of the optical structure 14
  • the first side surface 1412 and the second side surface 1413 of the main body portion 141 constitute the light-transmitting surface of the optical structure 14, that is, each optical module 140 has four light-transmitting surfaces. Surface and a pair of parallel reflecting surfaces.
  • Each row of the optical structure 14 is where a plurality of optical modules 140 pass through the end surface 1411 of the main body part 141 covered with the reflecting part 142 and are sequentially attached and fixed. 1412 fits and fixes.
  • two side surfaces of the outer peripheral side surface of the formed optical structure 14 are reflective surfaces, the other two side surfaces are light-transmitting surfaces, and the opposite side surfaces are transparent, and the optical structure of each row
  • the two pairs of side surfaces of the module 140 are both light-transmitting surfaces.
  • the transparent surface of the optical structure 14 is opposite to the light-emitting surface of the bending portion 112.
  • the light on the bending portion 112 can pass through the transparent light-transmitting surface of the optical structure 14 to enter the interior of each optical module 140, and the light reaches each optical module 140.
  • the upper reflecting portion 142 then passes through the optical module 140 through reflection to converge and image on the outside of the screen main body 111, so that the user can see the floating display screen 200 at a specific angle.
  • the reflection part 142 may also be provided and covered only on the first side surface 1412 of the main body part 141.
  • the surface of the reflective portion 142 constitutes the reflective surface of the optical structure 14
  • the end surface 1411 and the second side surface 1413 of the main body portion 141 constitute the light-transmitting surface of the optical structure 14, that is, each optical module 140 has four light-transmitting surfaces and A pair of parallel reflecting surfaces.
  • Each row of the optical structure 14 has a plurality of optical modules 140 attached and fixed in turn through the end surface 1411 of the main body portion 141, and each column of the optical structure 14 is a first side surface of the plurality of optical modules 140 covered with the reflection portion 142 via the main body portion 141 1412 fits and fixes.
  • two of the outer peripheral sides of the formed optical structure 14 are reflective surfaces, the other two sides are translucent surfaces, and the opposite sides are transparent, and each row of optical modules 140 A pair of side surfaces are light-transmitting surfaces, and two opposite end surfaces 1411 are also light-transmitting surfaces.
  • the transparent surface of the optical structure 14 is opposite to the light-emitting surface of the bending portion 112.
  • the light on the bending portion 112 can pass through the transparent light-transmitting surface of the optical structure 14 to enter the interior of each optical module 140, and the light reaches each optical module 140.
  • the upper reflecting portion 142 then passes through the optical module 140 through reflection to converge and image on the outside of the screen main body 111, so that the user can see the floating display screen 200 at a specific angle.
  • the angle ⁇ between the plane where the optical structure 14 is located and the plane where the screen main body 111 is located is greater than 0°, so that the bending portion arranged on the side of the screen main body 111 is bent.
  • the light from the light-emitting surface 112 can efficiently irradiate the light-transmitting surface of the optical structure 14, and under the transmission of the optical structure 14, a floating display screen 200 is formed on the outside of the screen main body 111.
  • the bending portion 112 is bent perpendicularly to the side of the screen main body 111, and the angle ⁇ between the plane where the optical structure 14 is located and the plane where the screen main body 111 is located is 45°.
  • This arrangement makes the light from the light-emitting surface of the bending portion 112 arranged perpendicular to the screen main body 111 reflect by the optical structure 14 which is biased to 45° with respect to the screen main body 111, so that the plane where the floating display screen 200 is located is the same as the plane where the screen main body 111 is located.
  • the plane is on the same plane stably.
  • the floating display screen 200 and the display image of the screen main body 111 are on the same plane, so that the user can see both the floating display screen 200 and the image of the screen main body 111 at the same position, so that the overall display function of the electronic device 100 is more comprehensive .
  • the end of the optical structure 14 abuts the connection between the screen main body 111 and the bending portion 112.
  • the bending portion 112 is bent perpendicularly to the screen main body 111, the light on the bending portion 112 is transmitted through the optical structure 14 and the floating display screen 200 formed on the outside of the screen main body 111 can be flush with the screen main body 111, making the user more
  • the display information on the screen main body 111 and the bending portion 112 is comprehensively acquired.
  • the flexible display screen 11 of this embodiment may include a plurality of bending parts 112.
  • Each bending portion 112 is correspondingly provided with an optical structure 14 so that the original display screen on each bending portion 112 can form a floating display screen 200 on the outside of the screen main body 111, so that the peripheral side of the electronic device 100 has a floating display screen.
  • the screen 200 is displayed, so that the display function of the electronic device 100 is more diversified.
  • multiple bending portions 112 may be provided on each side of the screen main body 111.
  • the multiple bending portions 112 on each side of the screen main body 111 can be provided with an optical structure 14 correspondingly, and the multiple bending portions 112 can form a floating display screen 200 on the side of the screen main body 111 through one optical structure 14 .
  • the optical structure can be bent on the bending portion on the edge of the screen body.
  • the original display image is reflected to form a floating display image on the same plane as the main body of the screen on the outside of the main body of the screen.
  • the user can obtain the display information on the bending part through the floating display screen.
  • the floating display screen cooperates with the image display of the main display screen to ensure the integrity of the image display of the flexible display screen, which not only highlights the advantages of the large screen display, but also enhances the user Experience.

Abstract

La présente invention concerne un module d'affichage (10) et un dispositif électronique (100), le module d'affichage (10) comprenant un écran d'affichage flexible (11), une plaque de recouvrement (12) et une structure optique (14) ; l'écran d'affichage flexible (11) comprend un corps principal d'écran (111) et une partie de flexion (112) ; la plaque de recouvrement (12) est disposée sur l'écran d'affichage flexible (11), la plaque de recouvrement (12) comprend un corps principal de plaque de recouvrement (121) et une partie de courbure (122), et la structure optique (14) est disposée entre la partie de flexion (112) et la partie de courbure (122) ; la structure optique (14) est pourvue d'une surface de transmission de lumière et d'une surface réfléchissante, la surface de transmission de lumière étant opposée à une surface d'émission de lumière de la partie de flexion (112). La structure optique (14) est disposée entre la partie de flexion (112) de l'écran d'affichage flexible (11) et la partie de courbure (122) de la plaque de recouvrement (12), de sorte que la structure optique (14) peut réfléchir une image d'affichage d'origine sur la partie de courbure (112) disposée au bord du corps principal d'écran (111), et elle forme une image d'affichage flottante (200) sur le même plan que le corps principal d'écran (111) sur le côté externe du corps principal d'écran (111).
PCT/CN2021/079580 2020-04-21 2021-03-08 Module d'affichage, ensemble d'affichage et dispositif électronique WO2021213022A1 (fr)

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Application Number Priority Date Filing Date Title
CN202010316575.XA CN111599270B (zh) 2020-04-21 2020-04-21 显示模组及电子设备
CN202010316575.X 2020-04-21

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Cited By (1)

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CN114724467A (zh) * 2022-05-11 2022-07-08 武汉华星光电半导体显示技术有限公司 曲面显示屏及移动终端

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CN111599271B (zh) * 2020-04-21 2022-01-04 Oppo广东移动通信有限公司 显示模组及电子设备
CN111599270B (zh) * 2020-04-21 2022-01-04 Oppo广东移动通信有限公司 显示模组及电子设备
CN114141164A (zh) * 2021-12-09 2022-03-04 维沃移动通信有限公司 电子设备

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CN111599271A (zh) * 2020-04-21 2020-08-28 Oppo广东移动通信有限公司 显示模组及电子设备
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CN107422466A (zh) * 2017-07-14 2017-12-01 华为技术有限公司 显示装置和终端设备
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CN114724467B (zh) * 2022-05-11 2023-07-25 武汉华星光电半导体显示技术有限公司 曲面显示屏及移动终端

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