WO2023000162A1 - 一种显示屏及终端 - Google Patents

一种显示屏及终端 Download PDF

Info

Publication number
WO2023000162A1
WO2023000162A1 PCT/CN2021/107303 CN2021107303W WO2023000162A1 WO 2023000162 A1 WO2023000162 A1 WO 2023000162A1 CN 2021107303 W CN2021107303 W CN 2021107303W WO 2023000162 A1 WO2023000162 A1 WO 2023000162A1
Authority
WO
WIPO (PCT)
Prior art keywords
photosensitive
filter
unit
display
display screen
Prior art date
Application number
PCT/CN2021/107303
Other languages
English (en)
French (fr)
Inventor
魏其源
梁晓琳
孙佳
卢俊宏
王英琪
Original Assignee
重庆康佳光电技术研究院有限公司
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 重庆康佳光电技术研究院有限公司 filed Critical 重庆康佳光电技术研究院有限公司
Priority to PCT/CN2021/107303 priority Critical patent/WO2023000162A1/zh
Priority to US17/866,592 priority patent/US20230027218A1/en
Publication of WO2023000162A1 publication Critical patent/WO2023000162A1/zh

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/50—Constructional details
    • H04N23/53—Constructional details of electronic viewfinders, e.g. rotatable or detachable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/60—Control of cameras or camera modules
    • H04N23/63—Control of cameras or camera modules by using electronic viewfinders
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/144—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light being ambient light

Definitions

  • the present application relates to the field of electronic technology, in particular to a display screen and a terminal.
  • camera modules are installed on terminal devices such as mobile phones and PADs to realize image acquisition.
  • terminal devices such as mobile phones and PADs
  • it is usually necessary to open a hole on the display screen so that the camera module can obtain a sufficient viewfinder window, which is obvious. It will seriously affect the display effect of the display.
  • the purpose of the present application is to provide a display screen and a terminal, which aims to solve the problems that the terminal needs to be separately provided with a camera module, which leads to the problem that the thickness of the terminal cannot be reduced and the portability is poor.
  • a display comprising:
  • a display layer comprising a plurality of LED pixel units configured to convert electrical signals into optical signals
  • a photosensitive layer comprising a plurality of photosensitive units configured to convert light signals into electrical signals
  • a filter layer comprising a plurality of filter units
  • the filter unit is arranged on the filter setting substrate, and the LED pixel unit and the photosensitive unit are arranged on the carrier substrate and are respectively electrically connected to the display drive circuit and the photosensitive input circuit on the carrier substrate; the light incident surface of the photosensitive unit is connected to the LED pixel unit
  • the light emitting surfaces of the LEDs have the same direction, and the light incident surface of the photosensitive unit faces the filter unit; the photosensitive unit is located in the space between adjacent LED pixel units, and its position corresponds to the filter unit.
  • the present application also provides a terminal, which includes a main control chip and the above-mentioned display screen, and the main control chip is configured to communicate with the LED pixel unit through a display driving chip and a display driving circuit to control the LED pixel unit.
  • the pixel unit performs display and is configured to communicate with the photosensitive unit through the photosensitive processing chip and the photosensitive input circuit, so as to obtain the image acquisition result of the photosensitive unit.
  • the above-mentioned display screen includes not only LED pixel units and a display drive circuit for driving the LED pixel units to display, but also includes a filter unit, a photosensitive unit, and a photosensitive input circuit that transmits photosensitive results of the photosensitive unit. Therefore, the display screen can use the photosensitive unit to convert the light passing through the filter unit into an electrical signal to realize image acquisition, achieving the effect of integrating the image display function and the image acquisition function.
  • the display screen is installed in the terminal, there is no need to set an independent camera module under the screen for image capture, which can greatly reduce the thickness and cost of the terminal, and improve the portability and product competitiveness of the terminal.
  • the display screen of the above-mentioned terminal includes not only LED pixel units and a display driving circuit for driving the LED pixel units to display, but also includes a filter unit, a photosensitive unit, and a photosensitive input circuit that transmits photosensitive results of the photosensitive unit. Therefore, the display screen can use the photosensitive unit to convert the light passing through the filter unit into an electrical signal to realize image acquisition, achieving the effect of integrating the image display function and the image acquisition function. Therefore, there is no need to set up an independent camera module at the bottom of the screen for image capture in the terminal, which can greatly reduce the thickness and cost of the terminal, and improve the portability and product competitiveness of the terminal.
  • FIG. 1 is a schematic diagram of a setting position of a display screen and a camera module in the related art shown in the present application;
  • Fig. 2 is a schematic cross-sectional structure diagram of a first display screen provided in an optional embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a filter unit group provided in an optional embodiment of the present application.
  • Fig. 4 is a schematic cross-sectional structure diagram of a second display screen provided in an optional embodiment of the present application.
  • FIG. 5 is a schematic diagram of division of an imaging area and a non-imaging area on a display screen shown in an optional embodiment of the present application;
  • Fig. 6 is a schematic cross-sectional structure diagram of a third display screen provided in an optional embodiment of the present application.
  • Fig. 7 is a schematic cross-sectional structure diagram of a fourth display screen provided in an optional embodiment of the present application.
  • Fig. 8 is a schematic cross-sectional structure diagram of a fifth display screen provided in an optional embodiment of the present application.
  • FIG. 9 is a schematic diagram of a hardware structure of a terminal provided in an optional embodiment of the present application.
  • Fig. 10 is a schematic cross-sectional structure diagram of a display screen provided in another optional embodiment of the present application.
  • FIG. 11 is a schematic diagram of a circuit structure in a display screen provided in another optional embodiment of the present application.
  • FIG. 12 is a schematic diagram of obtaining a voltage value of a photosensitive unit by a photosensitive processing chip provided in another optional embodiment of the present application.
  • 101-camera module 102-display screen; 1021-translucent area; 1022-non-transparent area; 20-display screen; 201-first area; 202-second area; 21-carrying substrate; 211-display bearing Substrate; 212-photosensitive bearing substrate; 22-filter setting substrate; 23-display layer; 230-LED pixel unit; 24-photosensitive layer; 240-photosensitive unit; 25-filter layer; 250-filter unit; 251- Transparent adhesive layer; 2501-red light filter unit; 2502-blue light filter unit; 2503-green light filter unit; 2504-one-way anti-reflection film; 260-light blocking unit;
  • the position of the light-transmitting area 1021 corresponds to the position of the camera module 101. In this way, when the camera module 101 needs to collect images, it can pass through the light-transmitting area 1021 to collect external light incident into the screen, thereby converting the light signal It is an electrical signal, and then converts the electrical signal into a digital signal to realize image acquisition.
  • the volume and thickness of the camera module 101 are usually relatively large, which will cause the volume and thickness of the terminal to be reduced to the state expected by the user, hindering the development trend of light, thin and portable terminal products.
  • This embodiment provides a display screen. Please refer to a schematic cross-sectional structure diagram of the display screen shown in FIG. Layer 25.
  • the display layer 23 includes a plurality of LED pixel units 230, and each LED pixel unit 230 may include one or more LED chips that can convert electrical signals into optical signals.
  • the LED pixel units 230 It should at least include LED chips of the three primary colors of RGB.
  • the LED pixel unit 230 may also include LED chips that can emit light of other colors, such as , LED chips that can emit indigo light, LED chips that can emit yellow light, etc.
  • the LED pixel unit 230 is disposed on the carrier substrate 21 and is electrically connected to a display driving circuit (not shown in FIG. 2 ) on the carrier substrate 21 , and can work under the driving of the display driving circuit.
  • the display driving circuit is disposed on the carrier substrate 21 , and the word “upper” does not mean that the display driving circuit must be located on the surface of the carrier substrate 21 , nor does it mean that the display driving circuit is located on the upper part of the carrier substrate 21 .
  • the display driver circuit is in contact with the carrier substrate 21, it can be considered that the display driver circuit is arranged on the carrier substrate 21, so in some examples, the display driver circuit can be arranged on the surface of the carrier substrate 21, and in other examples, the display driver circuit It may be arranged inside the carrier substrate 21 .
  • the filter layer 25 includes a plurality of filter units 250 arranged on the filter setting substrate 22.
  • the filter unit 250 can allow some light to pass through itself, while blocking other light from reaching another layer from one side.
  • the filter unit 250 is an optical device that can be used to select a desired radiation wavelength band.
  • the filter layer 25 includes a filter unit group, and the filter unit group is formed by a plurality of filter units 250 of different colors, for example, please refer to a filter unit group shown in FIG.
  • the proportions of red, green and blue color filter units are basically the same, but in some other examples of this embodiment, in one filter unit group,
  • the red and blue color filter units account for 25% each, and the green filter unit accounts for 50%, thus forming an RGBG filter unit group.
  • the RGBG filter unit group is a primary color filter, which is also called called a Bayer filter. It can be understood that the proportion of the filter units of each color in the filter unit group can also be other values, which will not be repeated here.
  • the filter unit group may also include filter units of other colors, and the setting of the filter units of other colors can realize complementary colors, so
  • the filter unit group including filter units of colors other than red, green and blue is actually a complementary color filter.
  • the filter unit group also includes a yellow filter unit, and the red, green, blue, and yellow four-color filter units each account for 25%, thereby forming an RGBY filter unit group .
  • the filter units in the filter layer 25 are directly arranged in the form of filter unit groups, that is, the filter units belonging to the same filter unit group are arranged adjacent to each other.
  • the filter unit 250 also needs to be driven by current to work, for example, the filter unit 250 is an electrochromic filter element or a liquid crystal filter element.
  • a filter driving circuit for driving the filter unit 250 may be provided on the filter setting substrate 22 .
  • the photosensitive layer 24 includes a plurality of photosensitive units 240 disposed on the carrier substrate 21 , and the photosensitive units 240 can be used to convert optical signals into electrical signals.
  • the photosensitive unit 240 is electrically connected to a photosensitive input circuit (not shown in FIG. 2 ) on the carrier substrate 21 , so as to transmit its photoelectric conversion result to the photosensitive processing chip through the photosensitive input circuit.
  • the photosensitive input circuit can be arranged on the surface of the carrying substrate 21 or inside the carrying substrate 21 .
  • the light incident surface of the photosensitive unit 240 is oriented in the same direction as the light outgoing surface of the LED pixel unit 230 . Therefore, whichever direction the display layer 23 faces for image display, the photosensitive unit 240 will sense the light signal in that direction. At the same time, the light incident surface of the photosensitive unit 240 faces the filter unit 250, and the position of the photosensitive unit 240 in the photosensitive layer 24 corresponds to the position of the filter unit 250 in the filter layer 25, so the light incident surface of the photosensitive unit 240 is in line with the filter unit.
  • the light emitting surfaces of the unit 250 are opposite, so that the light passing through the filter unit 250 can be sensed by the photosensitive unit 240 to generate an electrical signal.
  • the photosensitive unit 240 is arranged in the space between the adjacent LED pixel units 230 , the photosensitive unit 240 and the filter unit 250 will not affect the light output of the LED pixel unit 230 and will not affect the display effect of the display layer 23 .
  • the filter layer 25 is located on the light incident surface of the photosensitive layer 24, the filter layer 25 is also located on the light exit surface of the display layer 23.
  • the filter setting substrate 22 for carrying the filter layer 25 It must also be located on the light-emitting surface of the display layer 23.
  • the filter substrate 22 is transparent.
  • the filter substrate 22 can be Glass base board.
  • the filter setting substrate 22 may also be a sapphire substrate or the like.
  • the filter setting substrate 22 is closer to the photosensitive layer 24 than the filter layer 25 in FIG.
  • the filter arrangement substrate 22 may also be located on the side of the filter layer 25 away from the photosensitive layer 24 .
  • the filter setting substrate 22 can be placed below the filter layer 25 , or the filter setting substrate 22 can be set above the filter layer 25 .
  • the carrier substrate 21 in the display screen 20 shown in FIG. Also arranged on the same carrier substrate 21 , the display layer 23 and the photosensitive layer 24 are on the same horizontal plane.
  • the carrying substrate 21 in the display screen may also include two or even more than two substrates, and the photosensitive layer 24 and the display layer 23 are located on different substrates.
  • the display layer 23 is located on the display carrier substrate 211
  • the photosensitive input circuit is disposed on the photosensitive carrier substrate 212
  • the photosensitive layer 24 is located on the photosensitive carrier substrate 212 .
  • the photosensitive carrier substrate 212 is located between the display carrier substrate 211 and the filter substrate 22 , so in order to prevent the photosensitive carrier substrate 212 from blocking the light of the LED pixel unit 230 , the photosensitive carrier substrate 212 is also transparent.
  • the photosensitive carrier substrate 212 is located on the side of the photosensitive layer 24 close to the filter layer 25, and the photosensitive carrier substrate 212 is arranged on the photosensitive layer 24, in other examples of this embodiment, the photosensitive carrier substrate 212 It may also be provided under the photosensitive layer 24 .
  • the display layer 23 and the photosensitive layer 24 can also be in the same horizontal plane, even the display layer 23 and the photosensitive layer 24 are flush, but in some other examples of this embodiment, the photosensitive layer 24 and the display layer 23 can also be in a different horizontal plane, for example, the photosensitive layer 24 can be higher than the display layer 23 .
  • the photosensitive carrier substrate 212 when the photosensitive carrier substrate 212 is located between the photosensitive unit 240 and the display layer 23, the photosensitive layer 24 must be higher than the display layer 23; between the display carrier substrate 211 , but the photosensitive layer 24 can also be set higher than the display layer 23 .
  • the filter layer 25 includes a filter unit 250 corresponding to the position of the photosensitive unit 240 in the photosensitive layer 24.
  • the filter layer 25 also includes a position and a display layer 23 Please continue to refer to FIG. 2 for the transparent adhesive layer 251 corresponding to the LED pixel unit 230 .
  • the display layer 23 and the photosensitive layer 24 are at the same level, and the LED pixel unit 230 on the carrier substrate 21 and a plurality of photosensitive units 240 corresponding to the same filter unit group (hereinafter referred to as the same filter unit group)
  • a plurality of photosensitive units 240 are arranged alternately, and correspondingly, the transparent adhesive layer 251 and the filter units 250 are also arranged alternately on the filter substrate 22 .
  • the position corresponding to the LED pixel unit 230 in the filter layer 25 may also be directly hollowed out without any device.
  • the display screen 20 includes a first area 201 and a second area 202 .
  • the first area 201 is an imaging area
  • the second area 202 is a non-imaging area.
  • the photosensitive unit 240 and the filter unit 250 are only distributed in the first area 201 and will not be distributed in the second area 202. middle.
  • the space between two adjacent LED pixel units 230 in the second region 202 can be provided with a light blocking unit, for example, please further refer to the structural schematic diagram of a display screen 60 shown in FIG.
  • photosensitive units 240 and LED pixel units 230 are both disposed on the carrier substrate 21 , and the photosensitive units 240 are disposed in gaps between the LED pixel units 230 , and photosensitive unit groups and LED pixel units 230 are arranged alternately.
  • the distribution density of the LED pixel units 230 is the same as the distribution density of the LED pixel units 230 in the first area 201, but the second area 202 does not include the photosensitive unit 240, but is replaced by the light blocking unit 260
  • the photosensitive unit group is disposed in the gap between the LED pixel units 230 .
  • the distribution density of the filter units 250 is the same as that of the photosensitive units 240, but the filter units 250 are also no longer provided in the second area 202.
  • the transparent adhesive layer 251 may be entirely disposed in the second region 202 of the filter setting substrate 22 .
  • the light blocking unit 260 has a light blocking effect, and it can be made of opaque materials such as black glue, and the light blocking unit 260 is set in the gap between adjacent LED pixel units 230, which can prevent adjacent LED pixel units 230 from connecting with each other. Light will affect the display effect of the display.
  • the photosensitive units 240 and the light filtering units 250 may also be evenly distributed in the entire area, and in these display screens, no distinction is made between the imaging area and the non-camera area.
  • the display screen 70 includes a first retaining wall 271, the first retaining wall 271 can be arranged on the carrier substrate 21, and it can be positioned on the carrier with the LED pixel unit 230. the same side of the substrate 21.
  • the first retaining wall 271 is arranged along the edge of the carrier substrate 21, thereby enclosing the display layer 23 and the photosensitive layer 24 in the middle, which can prevent external light from entering the LED pixel unit 230 and the photosensitive unit from the side of the display screen 70 240 , thereby affecting the display effect of the display layer 23 and the image collection effect of the photosensitive layer 24 .
  • the carrier substrate 21 is divided into a display carrier substrate 211 and a photosensitive carrier substrate 212, and the display layer 23 and the photosensitive layer 24 are respectively arranged on different substrates, then in this case, the display carrier substrate 211 and the photosensitive carrier substrate 212 can be divided into First retaining walls 271 are respectively arranged on the photosensitive carrying substrate 212: the first retaining walls 271 arranged on the display carrying substrate 211 are arranged along the edge of the display carrying substrate 211, and are used to enclose the display layer 23 and prevent light from passing through the display screen.
  • the side enters into the LED pixel unit 230; the first barrier wall 271 arranged on the photosensitive carrier substrate 212 is arranged along the edge of the photosensitive carrier substrate 212, and is used to enclose the photosensitive layer 24 to prevent light from entering the photosensitive layer from the side of the display screen.
  • Unit 240 The side enters into the LED pixel unit 230; the first barrier wall 271 arranged on the photosensitive carrier substrate 212 is arranged along the edge of the photosensitive carrier substrate 212, and is used to enclose the photosensitive layer 24 to prevent light from entering the photosensitive layer from the side of the display screen.
  • a second barrier 272 is also set in the display screen 70, and the second barrier 272 can be set along the edge of the filter setting substrate 22 to filter the light
  • the layer 25 is enclosed in the middle, and when the filter layer 25 only includes the filter unit 250, the second retaining wall 272 surrounds the filter unit 250 in the middle; when the filter layer 25 also includes a transparent adhesive layer 251, The second retaining wall 272 encloses the filter unit 250 and the transparent adhesive layer 251 in the middle, thereby preventing external light from entering the filter unit 250 from the side of the display screen 70 , and then passing through the filter unit 250 to the photosensitive unit 240 Affect image acquisition effect.
  • first retaining wall 271 and the second retaining wall 272 are set at the same time in the display screen shown in FIG. one of those.
  • a one-way anti-reflection film 2504 is also provided in the display screen, as shown in FIG. 8 , the one-way anti-reflection film 2504 It is arranged on the side of the filter unit 250 away from the photosensitive unit 240 , that is, it is arranged on the light incident surface of the filter unit 250 .
  • the one-way anti-reflection film 2504 should not cover the top of the LED pixel unit 230, therefore, when setting the one-way anti-reflection film 2504, a complete one-way anti-reflection film layer can be patterned first processing to hollow out the position corresponding to the LED pixel unit 230 , and then arrange the patterned film layer on the light incident surface of the filter layer 25 .
  • the one-way anti-reflection film 2504 is directly set in the filter unit 250.
  • one-way anti-reflection glue can be directly coated on the filter unit group to A one-way antireflection film 2504 is formed.
  • the display screen further includes a display driver chip, the display driver chip is electrically connected to the display driver circuit, and is used to receive a control signal from the main control chip, and control the display driver through the display driver circuit according to the control signal.
  • the LED pixel unit 230 works to make the display layer 23 display images.
  • the display screen includes a photosensitive processing chip, and the photosensitive processing chip is electrically connected to the photosensitive unit 240 through a photosensitive input circuit.
  • the photosensitive processing chip After the photosensitive unit 240 senses light and converts the light signal into an electrical signal, the photosensitive processing chip The photoelectric conversion result of the photosensitive unit 240 can be received, and then the electrical signal transmitted by the photosensitive unit 240 can be converted into a digital signal.
  • the display screen may include a display driver chip and a photosensitive processing chip at the same time.
  • the display screen itself may not include a display driver chip or a photosensitive processing chip. It is electrically connected with the photosensitive input circuit.
  • the terminal 9 includes a main control chip 91 and a display screen 92.
  • the display screen 92 can be a display screen provided in any of the foregoing examples.
  • the main control chip 91 and the display driving circuit 921 in the display screen 92, The light-sensing input circuit 922 is connected.
  • the main control chip 91 can be connected to the display driving circuit 921 and the light-sensing input circuit 922 through the display driving chip 931 and the light-sensing processing chip 932 respectively.
  • the main control chip 91 can control the LED pixel unit 230 to display through the display driver chip 931 and the display driver circuit 921 ;
  • the terminal 9 may also include an RF (Radio Frequency, radio frequency) unit, a WiFi module, an audio output unit, a sensor, a user input unit, an interface unit, a memory, etc. part.
  • RF Radio Frequency, radio frequency
  • the display screen provided in this embodiment not only has the display function, but also integrates the image acquisition function. Therefore, the terminal using this display screen does not need to install an additional camera module, which not only reduces the cost of the terminal, but also reduces the size of the terminal.
  • the thickness and volume of the terminal improve the portability of the terminal and enhance the product competitiveness of the terminal.
  • the display screen 100 includes a carrying substrate 111 and a filter setting substrate 112, these two substrates are arranged oppositely, because the carrying substrate 111 is on the bottom, and the light filtering setting substrate 112 is on the top, so the carrying substrate 111 and the light filtering setting substrate 112 can also be respectively Called "lower substrate” and "upper substrate”.
  • the carrying substrate 111 and the filter setting substrate 112 are each composed of a substrate, and both may be transparent substrates.
  • the carrying substrate 111 and the light filtering setting substrate 112 are both transparent. It is a glass substrate.
  • the carrier substrate 111 and the filter arrangement substrate 112 may also be sapphire substrates.
  • a plurality of LED pixel units 121 and a plurality of photosensitive units 122 are arranged on the carrier substrate 111, and a plurality of filter units 123 and a plurality of transparent layers 124 on the same horizontal plane are arranged on the filter setting substrate 112, and the photosensitive units 122 are arranged In the gap between the LED pixel units 121, the number of the filter unit 123 and the area on the horizontal plane are the same as those of the photosensitive unit 122, and at the same time, the position of the filter unit 123 is opposite to the position of the photosensitive unit 122; and the transparent layer 124 The area on the horizontal plane is the same as that of the LED pixel unit 121 , and the two positions are opposite.
  • the LED pixel unit 121 includes at least a red LED chip, a green LED chip and a blue LED chip.
  • the LED chips in this embodiment include but are not limited to Micro-LED (micro LED), mini-LED (mini LED) or OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode), etc.
  • the photosensitive unit 122 may include but not limited to at least one of a CCD (Charge Coupled) device and a CMOS (Complementary Metal Oxide Conductor) device, which can convert the optical signal passing through the filter unit 123 into an electrical signal.
  • CCD Charge Coupled
  • CMOS Complementary Metal Oxide Conductor
  • the filter unit 123 may include a one-way anti-reflection film 1230 , which is disposed on the light incident surface of the filter unit 123 to prevent light from the side of the filter unit 123 close to the photosensitive unit 122 from escaping to the opposite side. After the one-way anti-reflection film 1230 is provided, the filter unit 123 may not display colors to the outside.
  • the display screen 100 further includes a first retaining wall 131 and a second retaining wall 132, wherein the first retaining wall 131 is disposed on the carrier substrate 111, and is at the same position as the LED pixel unit 121 and the photosensitive unit 122.
  • the first retaining wall 131 is disposed along the edge of the carrier substrate 111 and attached to the LED pixel unit 121 and/or photosensitive unit 122 located at the outermost edge.
  • the height of the first retaining wall 131 is basically the same as the height of the LED pixel unit 121 and the photosensitive unit 122, or slightly greater than the height of the LED pixel unit 121 and the photosensitive unit 122, so that it can be ensured that no light will come from the side of the display screen 100. Injection into the LED pixel unit 121 or the photosensitive unit 122 is beneficial to ensure the display effect and image collection effect of the display screen 100 .
  • the second blocking wall 132 is arranged on the light filtering substrate 112, and is on the same side as the transparent layer 124 and the filter unit 123.
  • the transparent layer 124 and/or the filter unit 123 are pasted together.
  • the height of the second retaining wall 132 is basically the same as the height of the filter unit 123 and the transparent layer 124, or slightly greater than the height of the filter unit 123 and the transparent layer 124, so that it can be guaranteed that no light will pass through the side of the display screen 100.
  • the light incident into the transparent layer 124 or the filter unit 123 avoids the influence on the display effect of the LED pixel unit 121 and the interference on the imaging effect of the photosensitive unit 122 .
  • the display screen 100 also includes a display driver chip 141 and a photosensitive processing chip 142 , wherein the display driver chip 141 is electrically connected to the LED pixel unit 121 through a display driver circuit, and the photosensitive processing chip 142 is electrically connected to the LED pixel unit 121 through a display driver circuit.
  • the photosensitive input circuit is electrically connected to the photosensitive unit 122 .
  • the display driving circuit can be arranged in the gap between adjacent LED pixel units 121 on the carrier substrate 111
  • the photosensitive input circuit can be arranged in the gap between adjacent photosensitive units 122 on the carrier substrate 111 . It should be noted that in FIG.
  • the circuit for driving each LED chip by the display driver chip 141 is not shown, nor is the photosensitive input circuit between each photosensitive unit 122 and the photosensitive processing chip 142 shown.
  • the connection between some LED chips and the display driver chip 141 and the connection between part of the photosensitive unit 122 and the photosensitive processing chip 142 is shown schematically.
  • the display driver chip 141 and the photosensitive processing chip 142 may cooperate under the control of the main control chip.
  • the display driver chip 141 and the photosensitive processing chip 142 may be disposed on a COF (Chip On Flex, or, Chip On Film, chip on film), and may be located on different COFs.
  • the photosensitive processing chip 142 can determine the brightness of the color corresponding to the photosensitive unit 122 after obtaining the voltage amplitude of the electrical signal transmitted by the photosensitive unit 122, and integrate the colors and brightness corresponding to the multiple filter units 123, and the photosensitive processing chip 142 can determine a The pixel value at the pixel point of the image.
  • the photosensitive processing chip 142 can obtain the voltage value of each photosensitive unit 122 one by one according to the arrangement position of each photosensitive unit 122 on the display screen 100 , from left to right, and from top to bottom.
  • the photosensitive processing chip 142 may divide the display screen 100 into multiple regions, and then obtain the voltage values of the photosensitive units 122 in each region in a certain order. The acquisition of the voltage values corresponding to the photosensitive units 122 in different regions may be performed simultaneously.
  • This embodiment also provides a terminal, which includes a main control chip and the aforementioned display screen 100, and the display screen 100 is connected to the main control chip through communication, wherein the main control chip may be a processor of the terminal.
  • the display screen provided in this embodiment utilizes the photosensitive principle of the CCD camera to realize image acquisition, integrates the display function and the camera function, reduces the thickness of the terminal, and because the terminal equipment manufacturer does not need to purchase an additional camera module, it also saves the terminal cost.

Landscapes

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

Abstract

本申请涉及一种显示屏及终端。显示屏（20）中包括承载基板（21）、滤光设置基板（22）、显示层（23）、感光层（24）以及滤光层（25），显示层（23）中包括多个LED像素单元（230），感光层（24）中包括多个设置,LED像素单元（230）间的感光单元（240），滤光层（25）包括多个与感光单元（240）位置对应的滤光单元（250）；感光单元（240）的入光面与LED像素单元（230）的出光面朝向相同，感光单元（240）的入光面朝向滤光单元（250），感光层（24）可以将透过滤光单元（250）的光线感应转换为电信号，实现图像采集。

Description

一种显示屏及终端 技术领域
本申请涉及电子技术领域，尤其涉及一种显示屏及终端。
 背景技术
目前，手机、PAD等终端设备上都设置了摄像头模组以实现图像采集，为了设置摄像头模组，通常情况下需要对显示屏上开孔，以使摄像头模组获得足够的取景视窗，这显然会严重影响显示屏的显示效果。即便摄像头模组可以设置在显示屏之下实现屏下图像采集，但因为摄像头模组本身较厚，所以也会限制终端厚度的减小，影响终端便携性的提升，进而制约终端的产品竞争力。
因此，如何减小终端的厚度是目前亟待解决的问题。
 技术问题
鉴于上述相关技术的不足，本申请的目的在于提供一种显示屏及终端，旨在解决目前在终端中需要单独设置摄像头模组，导致终端厚度无法减小，便携性差的问题。
 技术解决方案
一种显示屏，包括：
承载基板；
透明的滤光设置基板；
包括多个LED像素单元的显示层，LED像素单元被配置为将电信号转换为光信号；
包括多个感光单元的感光层，感光单元被配置为将光信号转换为电信号；以及
包括多个滤光单元的滤光层；
滤光单元设置在滤光设置基板上，LED像素单元、感光单元均设置在承载基板上且分别与承载基板上的显示驱动电路、感光输入电路电连接；感光单元的入光面与LED像素单元的出光面朝向相同，感光单元的入光面朝向滤光单元；感光单元位于相邻的LED像素单元间的空间内，且其位置与滤光单元对应。
基于同样的发明构思，本申请还提供一种终端，该终端中包括主控芯片以及上述显示屏，主控芯片被配置为通过显示驱动芯片以及显示驱动电路与LED像素单元通信连接，以控制LED像素单元进行显示，以及被配置为通过感光处理芯片以及感光输入电路与感光单元通信连接，以获取感光单元的图像采集结果。
 有益效果
上述显示屏中，不仅包括LED像素单元以及驱动LED像素单元进行显示的显示驱动电路，而且包括滤光单元、感光单元以及传输感光单元感光结果的感光输入电路。因此，该显示屏可以利用感光单元可以将透过滤光单元的光线感应转换为电信号，实现图像采集，达到图像显示功能与图像采集功能一体化的效果。当终端中设置有该显示屏时，就不需要在屏幕下方设置独立的摄像头模组用于图像拍摄，这样可以极大地降低终端的厚度与成本，提升终端便携性与产品竞争力。
上述终端的显示屏中，不仅包括LED像素单元以及驱动LED像素单元进行显示的显示驱动电路，而且包括滤光单元、感光单元以及传输感光单元感光结果的感光输入电路。因此，该显示屏可以利用感光单元可以将透过滤光单元的光线感应转换为电信号，实现图像采集，达到图像显示功能与图像采集功能一体化的效果。所以在终端中不需要在屏幕下方设置独立的摄像头模组用于图像拍摄，这样可以极大地降低终端的厚度与成本，提升终端便携性与产品竞争力。
 附图说明
图1为本申请示出的相关技术中显示屏与摄像头模组的一种设置位置示意图；
图2为本申请一可选实施例中提供的第一种显示屏的剖面结构示意图；
图3为本申请一可选实施例中提供的一种滤光单元组的一种结构示意图；
图4为本申请一可选实施例中提供的第二种显示屏的剖面结构示意图；
图5为本申请一可选实施例中示出的显示屏上摄像区域与非摄像区域的一种划分示意图；
图6为本申请一可选实施例中提供的第三种显示屏的剖面结构示意图；
图7为本申请一可选实施例中提供的第四种显示屏的剖面结构示意图；
图8为本申请一可选实施例中提供的第五种显示屏的剖面结构示意图；
图9为本申请一可选实施例中提供的终端的一种硬件结构示意图；
图10为本申请另一可选实施例中提供的一种显示屏的剖面结构示意图；
图11为本申请另一可选实施例中提供的显示屏中电路结构的一种示意图；
图12为本申请另一可选实施例中提供的感光处理芯片获取感光单元电压值的一种示意图。
附图标记说明：
101-摄像头模组；102-显示屏；1021-透光区域；1022-非透光区域；20-显示屏；201-第一区域；202-第二区域；21-承载基板；211-显示承载基板；212-感光承载基板；22-滤光设置基板；23-显示层；230-LED像素单元；24-感光层；240-感光单元；25-滤光层；250-滤光单元；251-透明胶层；2501-红光滤光单元；2502-蓝光滤光单元；2503-绿光滤光单元；2504-单向防反射膜；260-挡光单元；271-第一挡墙；272-第二挡墙；40-显示屏；60-显示屏；70-显示屏；9-终端；91-主控芯片；92-显示屏；921-显示驱动电路；922-感光输入电路；931-显示驱动芯片；932-感光处理芯片；100-显示屏；111-承载基板；112-滤光设置基板；121-LED像素单元；122-感光单元；123-滤光单元；1230-单向防反射膜；124-透明层；131-第一挡墙；132-第二挡墙；141-显示驱动芯片；142-感光处理芯片。
 本发明的实施方式
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的较佳实施方式。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本申请的公开内容理解的更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本申请。
屏下摄像由于可以保证显示屏的完整性，提升显示效果，因此目前已经成为了手机等终端产品的主流摄像技术。不过，目前的屏下摄像也有显著的缺陷，例如，请参见图1所示：摄像头模组101设置在显示屏102之下，显示屏102分为透光区域1021与非透光区域1022，其中透光区域1021的位置与摄像头模组101的位置对应，这样，当摄像头模组101需要进行图像采集的时候可以透过该透光区域1021采集外部射入屏内的光线，从而将光信号转换为电信号，再将电信号转换为数字信号，实现图像采集。
受限于目前的摄像头技术，摄像头模组101的体积、厚度通常比较大，这就会导致终端的体积、厚度同样无法减小到用户期望的状态，阻碍了终端产品轻薄、便携的发展趋势。
基于此，本申请希望提供一种能够解决上述技术问题的方案，其详细内容将在后续实施例中得以阐述。
本申请一可选实施例：
本实施例提供一种显示屏，请参见图2示出的该显示屏的一种剖面结构示意图：显示屏20包括承载基板21、滤光设置基板22、显示层23、感光层24以及滤光层25。
其中，显示层23中包括多个LED像素单元230，每一个LED像素单元230中可以包括一颗或多颗可将电信号转换为光信号的LED芯片，对于彩色显示屏，LED像素单元230中至少应该包括RGB三原色的LED芯片，在本实施例的其他一些示例中，LED像素单元230中除了红、绿、蓝三色的LED芯片以外，还可以包括可以发出其他颜色光的LED芯片，例如，可以发出靛青色光LED芯片，可以发出黄色光的LED芯片等。LED像素单元230设置在承载基板21上，并与承载基板21上的显示驱动电路（图2中未示出）电连接，可在显示驱动电路的驱动下工作。通过对整个显示屏20中各LED像素单元230的不同控制，可以使得显示屏20实现显示。值得注意的是，显示驱动电路设置在承载基板21上，“上”字并不意味着显示驱动电路一定是位于承载基板21的表面，也不意味着显示驱动电路位于承载基板21上部。只要显示驱动电路与承载基板21有接触，就可以认为显示驱动电路设置在承载基板21上，所以在一些示例中，显示驱动电路可以设置在承载基板21的表面，另外一些示例中，显示驱动电路可以设置在承载基板21内部。
滤光层25中包括多个设置在滤光设置基板22上的滤光单元250，滤光单元250可以让一些光线通过自身，同时又可以阻挡另一些光线从一侧到达另一层，简单来说，滤光单元250是可以用来选取所需辐射波段的光学器件。在本实施例中，滤光层25中包括滤光单元组，滤光单元组是由多个不同颜色的滤光单元250形成的，例如，请参见图3示出的一个滤光单元组的一种结构示意图：滤光单元组可以包括仅供红光透过的红光滤光单元2501、仅供蓝光透过的蓝光滤光单元2502以及仅供绿光透过的绿光滤光单元2503。在本实施例的一些示例中，一个滤光单元组中，红、绿、蓝三色的滤光单元占比基本相同，但在本实施例的另外一些示例中，一个滤光单元组中，红、蓝两色滤光单元的占比各为25%，而绿色滤光单元占比50%，从而形成RGBG滤光单元组，RGBG滤光单元组是一种原色滤光镜，其又被称为拜尔滤光镜。可以理解的是，滤光单元组中各色滤光单元的占比还可以为其他值，这里不再赘述。在本实施例的其他一些示例中，滤光单元组中除了红绿蓝三色的滤光单元以外，还可以包括其他颜色的滤光单元，其他颜色的滤光单元的设置可以实现补色，所以包含红、绿、蓝以外颜色的滤光单元的滤光单元组实际上是补色滤色镜。例如，在本实施例的一种示例中，滤光单元组中还包括黄色滤光单元，且红、绿、蓝、黄四色滤光单元各自占比25%，从而形成RGBY滤光单元组。通常情况下，滤光层25中的滤光单元是直接以滤光单元组的形式设置的，也即属于同一滤光单元组的各滤光单元彼此邻近设置。在一些示例中，滤光单元250也需要在电流的驱动下才能工作，例如，滤光单元250为电致变色滤光元件或液晶滤光元件。在这些示例中，可以在滤光设置基板22上设置用于驱动滤光单元250的滤光驱动电路。
感光层24中包括多个设置在承载基板21上的感光单元240，感光单元240可以用于将光信号转换为电信号。感光单元240与承载基板21上的感光输入电路（图2中未示出）电连接，以通过感光输入电路将自己的光电转换结果传输给感光处理芯片。同样地，感光输入电路可以设置在承载基板21的表面，也可以设置在承载基板21的内部。
在本实施例中，感光单元240的入光面与LED像素单元230的出光面朝向相同，因此，显示层23朝向哪个方向进行图像显示，则感光单元240就朝向哪个方向进行光信号感应。同时，感光单元240的入光面朝向滤光单元250，并且感光层24中感光单元240的位置与滤光层25中滤光单元250的位置对应，因此感光单元240的入光面与滤光单元250的出光面相对，这样，穿过滤光单元250的光线可以被感光单元240感应到，从而生成电信号。同时，因为感光单元240设置在相邻LED像素单元230间的空间内，所以感光单元240以及滤光单元250不会对LED像素单元230的出光造成影响，不会影响显示层23的显示效果。
由于滤光层25位于感光层24的入光面上，因此，滤光层25也位于显示层23的出光面上，在这种情况下，用于承载滤光层25的滤光设置基板22必然也位于显示层23的出光面上，为了避免滤光设置基板22影响到显示层23的显示，在本实施例中，滤光设置基板22是透明的，例如，滤光设置基板22可以是玻璃基板。在本实施例的一些示例中，滤光设置基板22还可以为蓝宝石基板等。
可以理解的是，虽然在图2当中滤光设置基板22比滤光层25更靠近感光层24，也即滤光设置基板22设置在滤光单元250与感光单元240之间，但在本实施例的其他一些示例中，滤光设置基板22也可以位于滤光层25远离感光层24的一侧。以感光层24在下，滤光层25在上的方位来说，可以将滤光设置基板22设置在滤光层25的下方，也可以将滤光设置基板22设置在滤光层25的上方。
可以理解的是，虽然在图2示出的显示屏20中的承载基板21仅由一块基板构成，显示驱动电路、感光输入电路设置在相同的基板上，所以使得LED像素单元230与感光单元240也设置在相同的承载基板21上，显示层23与感光层24处于同一水平面。但在本实施例的其他一些示例中，显示屏中的承载基板21也可以包括两块，甚至两块以上的基板，感光层24与显示层23位于不同的基板上。例如，在本实施例的一种示例中，请参见图4示出的一种显示屏40：承载基板21包括显示承载基板211与感光承载基板212，其中，显示驱动电路设置在显示承载基板211上，因此，显示层23位于显示承载基板211上，而感光输入电路设置感光承载基板212上，故感光层24位于感光承载基板212上。
在图4当中，感光承载基板212位于显示承载基板211与滤光设置基板22之间，因此为了避免感光承载基板212遮挡LED像素单元230的光线，所以感光承载基板212也是透明的。虽然在图4当中，感光承载基板212位于感光层24靠近滤光层25的一侧，感光承载基板212设置在感光层24之上，但在本实施例的另外一些示例中，感光承载基板212也可以设置在感光层24之下。在图4当中，显示层23与感光层24同样可以处在同一水平面中，甚至显示层23与感光层24是齐平的，但在本实施例的其他一些示例中，感光层24与显示层23也可以处于不同的水平面内，例如，感光层24可以高于显示层23。例如，在一种示例当中，当感光承载基板212位于感光单元240与显示层23之间，则感光层24必然高于显示层23；还有一些示例中，即便感光单元240位于感光承载基板212与显示承载基板211之间，但感光层24也可以设置得比显示层23高。
根据前述介绍可知，在滤光层25中包含有与感光层24中感光单元240位置对应的滤光单元250，在本实施例的一些示例中，滤光层25中还包括位置与显示层23中LED像素单元230对应的透明胶层251，请继续参见图2所示。在一些示例中，显示层23与感光层24处于同一水平面，且承载基板21上LED像素单元230及对应于同一滤光单元组的多个感光单元240（以下将对应于同一滤光单元组的多个感光单元240称为“感光单元组”）交替设置，那么对应地，在滤光设置基板22上透明胶层251与滤光单元250也会交替设置。当然，在本实施例的其他一些示例中，滤光层25中与LED像素单元230对应的位置也可以直接镂空，不设置任何器件。
可以理解的是，在一些显示屏中，可以仅有部分区域用于图像采集，在这些示例中，感光层24、滤光层25将仅分布在显示屏的部分区域中，例如，请参见图5所示，显示屏20包括第一区域201与第二区域202。其中，第一区域201为摄像区域，而第二区域202为非摄像区域，在该示例当中，感光单元240与滤光单元250仅分布在第一区域201中，不会分布在第二区域202中。在这些示例中，第二区域202中相邻两个LED像素单元230间的空间可以设置挡光单元，例如，请进一步结合图6示出的一种显示屏60的结构示意图：显示屏60的第一区域201中，感光单元240与LED像素单元230均设置在承载基板21上，且感光单元240设置在LED像素单元230之间的间隙内，感光单元组与LED像素单元230交替设置。在第二区域202中，LED像素单元230的分布密度与第一区域201中LED像素单元230的分布密度相同，不过第二区域202中并不包括感光单元240，而是由挡光单元260代替感光单元组设置在LED像素单元230之间的间隙内。同时，在第一区域201当中，滤光单元250的分布密度与感光单元240的分布密度相同，但在第二区域202中也同样不再设置滤光单元250，在本实施例的一些示例中，滤光设置基板22的第二区域202中可以全部设置透明胶层251。
挡光单元260具有挡光作用，其可以通过诸如黑胶等不透光的材料制成，在相邻LED像素单元230的间隙中设置挡光单元260，可以避免相邻LED像素单元230相互串光，影响显示屏的显示效果。
毫无疑义的是，在本实施例的另外一些示例提供的显示屏中，也可以全部区域中都均匀分布有感光单元240与滤光单元250，在这些显示屏中就不再区分摄像区域与非摄像区域了。
在本实施例的一些示例中，请参见图7所示：显示屏70中包括有第一挡墙271，第一挡墙271可以设置在承载基板21上，其可以与LED像素单元230位于承载基板21的同一侧。第一挡墙271沿着承载基板21的边缘设置，从而将显示层23与感光层24围合在中间，这样可以避免外界的光从显示屏70的侧面射入到LED像素单元230与感光单元240中，从而影响到显示层23的显示效果以及感光层24的图像采集效果。
可以理解的是，如果承载基板21分为显示承载基板211与感光承载基板212，显示层23与感光层24分别设置在不同的基板上，则在这种情况下，可以在显示承载基板211与感光承载基板212上均分别设置第一挡墙271：设置在显示承载基板211上的第一挡墙271沿着显示承载基板211的边缘设置，用于围合显示层23，阻止光线自显示屏侧面进入到LED像素单元230中；设置在感光承载基板212上的第一挡墙271沿着感光承载基板212的边缘设置，用于围合感光层24，以阻止光线自显示屏侧面进入到感光单元240中。
在本实施例的一些示例中，请继续参见图7所示，显示屏70中还设置第二挡墙272，第二挡墙272可以沿着滤光设置基板22的边缘设置，以将滤光层25围合在中间，当滤光层25中仅包括滤光单元250时，第二挡墙272将滤光单元250围合在中间；当滤光层25中还包括透明胶层251时，第二挡墙272将滤光单元250与透明胶层251一起围合在中间，从而阻止外部光线自显示屏70的侧面进入到滤光单元250，进而透过滤光单元250射到感光单元240上影响图像采集效果。
可以理解的是，虽然在图7所示的显示屏中同时设置了第一挡墙271与第二挡墙272，但在本实施例的其他一些示例提供的显示屏中，也可能仅设置两者中的一者。
在本实施例的一些示例中，为了防止进入滤光层25的光线向显示屏外逃逸，显示屏中还设置有单向防反射膜2504，请参见图8所示，单向防反射膜2504设置在滤光单元250远离感光单元240的一侧，即设置在滤光单元250的入光面上。可以理解的是，单向防反射膜2504不应当覆盖在LED像素单元230上方，因此，在设置单向防反射膜2504的时候，可以先对一张完整的单向防反射膜层进行图案化处理，以将对应于LED像素单元230的位置镂空，然后再将图案化处理后的膜层设置在滤光层25的入光面之上。还有一些示例中，单向防反射膜2504是直接设置滤光单元250中的，例如，在制备滤光单元250的过程中，可以直接在滤光单元组上涂覆单向防反射胶以形成单向防反射膜2504。
在本实施例的一些示例中，显示屏中还包括显示驱动芯片，显示驱动芯片与显示驱动电路电连接，其用于接收来自主控芯片的控制信号，并根据该控制信号通过显示驱动电路控制LED像素单元230工作，进而使得显示层23显示图像。
还有一些示例中，显示屏中包括感光处理芯片，感光处理芯片通过感光输入电路与感光单元240电连接，这样，当感光单元240感应到光线并将光信号转换为电信号之后，感光处理芯片可以接收到感光单元240的光电转换结果，进而将感光单元240传输过来的电信号转换为数字信号。
还有一些示例中，显示屏中可以同时包括显示驱动芯片与感光处理芯片。当然，在一些示例中，显示屏本身可以不包含显示驱动芯片或感光处理芯片，当这种显示屏应用于终端时，需要另外设置显示驱动芯片与显示驱动电路电连接，或另外设置感光处理芯片与感光输入电路电连接。
本实施例还提供一种终端，该终端可以包括诸如手机、平板电脑、笔记本电脑、掌上电脑、个人数字助理（Personal Digital Assistant，PDA）、便捷式媒体播放器（Portable Media Player，PMP）、导航装置、可穿戴设备、智能手环、计步器等移动终端，以及诸如数字TV、台式计算机等固定终端。请参见图9，该终端9中包括主控芯片91与显示屏92，显示屏92可以为前述任意一种示例中提供的显示屏，主控芯片91与显示屏92中的显示驱动电路921、感光输入电路922连接，可以理解的是，主控芯片91可以通过显示驱动芯片931、感光处理芯片932分别与显示驱动电路921、感光输入电路922连接。主控芯片91一方面可以通过显示驱动芯片931、显示驱动电路921控制LED像素单元230进行显示，另一方面可以通过感光输入电路922、感光处理芯片932获取感光单元240的图像采集结果。
应当明白的是，虽然在图9示出的显示屏92中包含显示驱动芯片931与感光处理芯片932，但在其他一些示例提供的显示屏中，显示屏92本身可以不包含显示驱动芯片931和/或感光处理芯片932。
可以理解的是，终端9中除了包括主控芯片91与显示屏92以外，还可以包括RF（Radio Frequency，射频）单元、WiFi模块、音频输出单元、传感器、用户输入单元、接口单元、存储器等部件。
本实施例提供的显示屏，不仅具备显示功能，而且集成了图像采集功能，所以，应用这种显示屏的终端，不需要再另外设置摄像头模组，不仅可以降低终端成本，而且可以减小终端的厚度与体积，提升终端的便携性，增强终端的产品竞争力。
本申请另一可选实施例：
为了使本领域技术人员更清楚前述显示屏及终端的结构细节与优点，本实施例将结合示例继续对显示屏进行介绍，请参见图10：
显示屏100包括承载基板111与滤光设置基板112，这两个基板相对设置，因为承载基板111在下，而滤光设置基板112在上，因此承载基板111与滤光设置基板112也可以分别被称为“下基板”、“上基板”。在本实施例中，承载基板111与滤光设置基板112各由一块基板构成，二者可以均为透明基板，例如，在本实施例的一些示例中，承载基板111与滤光设置基板112均为玻璃基板，在本实施例的另外一些示例中，承载基板111与滤光设置基板112也可以为蓝宝石基板。
在承载基板111上设置有多个LED像素单元121、多个感光单元122，在滤光设置基板112上设置有多个滤光单元123与多个处于同一水平面的透明层124，感光单元122设置在LED像素单元121之间的间隙中，滤光单元123的数目以及在水平面上的面积与感光单元122的相同，同时，滤光单元123的位置与感光单元122的位置相对；而透明层124在水平面上的面积与LED像素单元121的相同，且二者位置相对。
在本实施例中，LED像素单元121中至少包括红光LED芯片、绿光LED芯片与蓝光LED芯片。本实施例中的LED芯片包括但不限于Micro-LED（微LED）、mini-LED（迷你LED）或者是OLED（Organic Light-Emitting Diode，有机发光二极管）等。
感光单元122可以包括但不限于CCD（电荷藕合）元件与CMOS（互补金属氧化物导体）器件中的至少一种，其可以将透过滤光单元123的光信号转换为电信号。
滤光单元123中可以包括单向防反射膜1230，单向防反射膜1230设置在滤光单元123的入光面上，可以防止滤光单元123靠近感光单元122侧的光线逃逸到对侧。在设置单向防反射膜1230后，滤光单元123就可以不对外显示颜色。
在本实施例中，显示屏100中还包括第一挡墙131与第二挡墙132，其中，第一挡墙131设置在承载基板111上，且与LED像素单元121、感光单元122处于同侧，第一挡墙131在承载基板111上沿着边缘设置，且与位于最边缘的LED像素单元121和/或感光单元122贴合。另外，第一挡墙131的高度与LED像素单元121、感光单元122的高度基本一致，或者略大于LED像素单元121、感光单元122的高度，这样可以保证不会有光线自显示屏100的侧面射入到LED像素单元121或感光单元122中，有利于保证显示屏100的显示效果与图像采集效果。
第二挡墙132设置在滤光设置基板112上，且与透明层124、滤光单元123处于同侧，第二挡墙132在滤光设置基板112上沿着边缘设置，且与位于最边缘的透明层124和/或滤光单元123贴合。另外，第二挡墙132的高度与滤光单元123、透明层124的高度基本一致，或者略大于滤光单元123、透明层124的高度，这样可以保证不会有光线自显示屏100的侧面射入到透明层124或滤光单元123中，避免了对LED像素单元121显示效果的影响与对感光单元122摄像效果的干扰。
请参见图11，在本实施例中显示屏100中还包括显示驱动芯片141与感光处理芯片142，其中，显示驱动芯片141通过显示驱动电路与LED像素单元121电连接，而感光处理芯片142通过感光输入电路与感光单元122电连接。在本实施例中，显示驱动电路可以设置在承载基板111上相邻LED像素单元121之间的空隙中，而感光输入电路则可以设置在承载基板111上相邻感光单元122之间的空隙中。值得注意的是，在图11当中，并没有示出显示驱动芯片141驱动每一颗LED芯片的电路，也没有示出每一个感光单元122与感光处理芯片142间的感光输入电路，仅仅是对部分LED芯片与显示驱动芯片141以及部分感光单元122与感光处理芯片142之间的连接进行示意。
一些示例中，当显示屏100应用到包括主控芯片的终端（例如手机、平板电脑、可穿戴设备）中时，显示驱动芯片141与感光处理芯片142可以在主控芯片的控制下协作。可选地，显示驱动芯片141与感光处理芯片142可以设置COF（Chip On Flex, or, Chip On Film,覆晶薄膜）上，且可以位于不同的COF上。
应当理解的是，在一个已经制备完成的显示屏当中，每一个感光单元122在该显示屏上的位置，以及该感光单元122所对应的滤光单元123都是确定的，因此，感光处理芯片142在获取到一个感光单元122所传输电信号的电压幅度之后，可以确定该感光单元122所对应颜色的亮度，综合多个滤光单元123对应的颜色及亮度，感光处理芯片142就可以确定一个图像像素点处的像素值。在本实施例的一些示例中，感光处理芯片142可以按照各感光单元122在显示屏100上的排布位置，自左向右，自上而下的顺序逐个获取各感光单元122的电压值。例如请参见图12示出的一种感光处理芯片142获取感光单元122电压值的一种示意图，其中，XnYn表示坐标为（Xn，Yn）的感光单元，横坐标表示获取感光单元122电压值的时间，而纵坐标表示对应感光单元122的电压值。还有一些示例中，感光处理芯片142可以将显示屏100划分为多个区域，然后在每一个区域中按照一定的顺序获取各感光单元122的电压值。对于不同区域中感光单元122对应电压值的获取，可以同时进行。
本实施例还提供一种终端，该终端中包括主控芯片以及前述显示屏100，显示屏100与主控芯片通信连接，其中主控芯片可以为终端的处理器。
本实施例提供的显示屏利用了CCD相机的感光原理，实现了图像采集，将显示功能与摄像功能一体化，降低了终端的厚度，而且因为终端设备厂商不需要额外购置摄像头模组，也节约了终端成本。
应当理解的是，本申请的应用不限于上述的举例，对本领域普通技术人员来说，可以根据上述说明加以改进或变换，所有这些改进和变换都应属于本申请所附权利要求的保护范围。

Claims (18)

  1. 一种显示屏，其特征在于，包括：
    承载基板；
    透明的滤光设置基板；
    包括多个LED像素单元的显示层，所述LED像素单元被配置为将电信号转换为光信号；
    包括多个感光单元的感光层，所述感光单元被配置为将光信号转换为电信号；以及
    包括多个滤光单元的滤光层；
    所述滤光单元设置在所述滤光设置基板上，所述LED像素单元、所述感光单元均设置在所述承载基板上且分别与所述承载基板上的显示驱动电路、感光输入电路电连接；所述感光单元的入光面与所述LED像素单元的出光面朝向相同，所述感光单元的入光面朝向所述滤光单元；所述感光单元位于相邻的所述LED像素单元间的空间内，且其位置与所述滤光单元对应。
  2. 如权利要求1所述的显示屏，其特征在于，还包括显示驱动芯片，所述显示驱动芯片被配置为接收来自主控芯片的控制信号，并根据所述控制信号通过所述显示驱动电路控制所述LED像素单元工作。
  3. 如权利要求1所述的显示屏，其特征在于，还包括感光处理芯片，所述感光处理芯片被配置为通过所述感光输入电路接收所述感光单元转换得到的电信号，并将所述电信号转换为图像数据。
  4. 如权利要求1所述的显示屏，其特征在于，还包括单向防反射膜，所述单向防反射膜设置在所述滤光单元远离所述感光单元的一侧。
  5. 如权利要求1所述的显示屏，其特征在于，所述滤光设置基板位于所述滤光层与所述感光层之间。
  6. 如权利要求1所述的显示屏，其特征在于，所述滤光设置基板位于所述滤光层远离所述感光层的一侧。
  7. 如权利要求1所述的显示屏，其特征在于，所述显示层与所述感光层处于同一水平面。
  8. 如权利要求7所述的显示屏，其特征在于，还包括第一挡墙，所述第一挡墙沿着所述承载基板的边缘设置，并将所述显示层与所述感光层围合在中间。
  9. 如权利要求1所述的显示屏，其特征在于，所述滤光层中还包括位置与所述显示层中所述LED像素单元相对的透明胶层。
  10. 如权利要求9所述的显示屏，其特征在于，还包括第二挡墙，所述第二挡墙沿着所述滤光设置基板的边缘设置，并将所述滤光层围合在中间。
  11. 如权利要求1-10任一项所述的显示屏，其特征在于，所述显示驱动电路与所述感光输入电路所在的所述承载基板相同。
  12. 如权利要求1-10任一项所述的显示屏，其特征在于，所述承载基板包括显示承载基板与感光承载基板，所述显示驱动电路设置在所述显示承载基板上，所述感光输入电路设置在所述感光承载基板上；所述感光承载基板透明，且其位于所述滤光设置基板与所述显示承载基板之间。
  13. 如权利要求12所述的显示屏，其特征在于，所述感光承载基板位于所述感光层与所述滤光层之间。
  14. 如权利要求12所述的显示屏，其特征在于，所述感光承载基板位于所述感光层与所述显示层之间。
  15. 如权利要求1-10任一项所述的显示屏，其特征在于，所述显示屏包括第一区域与第二区域，所述感光单元及所述滤光单元仅分布于所述第一区域中；在所述第二区域中，相邻的所述LED像素单元间的空间内设置有挡光单元。
  16. 如权利要求1-10任一项所述的显示屏，其特征在于，所述感光单元均匀分布于所述显示屏的全部区域中。
  17. 如权利要求1-10任一项所述的显示屏，其特征在于，所述滤光层包括RGBG滤光单元组与RGBY滤光单元组中的至少一种，所述RGBG滤光单元组由25%的红色滤光单元、25%的蓝色滤光单元以及50%的绿色滤光单元构成；所述RGBY滤光单元组由25%的红色滤光单元、25%的绿色滤光单元、25%的蓝色滤光单元以及25%的黄色滤光单元构成。
  18. 一种终端，其特征在于，所述终端中包括主控芯片以及如权利要求1-17任一项所述的显示屏，所述主控芯片被配置为通过显示驱动芯片以及所述显示驱动电路与所述LED像素单元通信连接，以控制所述LED像素单元进行显示，以及被配置为通过感光处理芯片以及所述感光输入电路与所述感光单元通信连接，以获取所述感光单元的图像采集结果。
PCT/CN2021/107303 2021-07-20 2021-07-20 一种显示屏及终端 WO2023000162A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2021/107303 WO2023000162A1 (zh) 2021-07-20 2021-07-20 一种显示屏及终端
US17/866,592 US20230027218A1 (en) 2021-07-20 2022-07-18 Display Screen and Terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/107303 WO2023000162A1 (zh) 2021-07-20 2021-07-20 一种显示屏及终端

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/866,592 Continuation US20230027218A1 (en) 2021-07-20 2022-07-18 Display Screen and Terminal

Publications (1)

Publication Number Publication Date
WO2023000162A1 true WO2023000162A1 (zh) 2023-01-26

Family

ID=84975903

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2021/107303 WO2023000162A1 (zh) 2021-07-20 2021-07-20 一种显示屏及终端

Country Status (2)

Country Link
US (1) US20230027218A1 (zh)
WO (1) WO2023000162A1 (zh)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104570449A (zh) * 2015-01-29 2015-04-29 京东方科技集团股份有限公司 显示面板及其制作方法、显示装置
CN104752445A (zh) * 2013-12-25 2015-07-01 昆山工研院新型平板显示技术中心有限公司 交互式电子装置及其像素单元
US20150241729A1 (en) * 2014-02-27 2015-08-27 Lg Electronics Inc. Mobile terminal
CN104932670A (zh) * 2014-03-21 2015-09-23 联想(北京)有限公司 交互投影设备及其制作方法
US20160155230A1 (en) * 2014-11-27 2016-06-02 Thomson Licensing Plenoptic camera comprising a light emitting device
CN111781756A (zh) * 2020-06-05 2020-10-16 北京小米移动软件有限公司 显示模组及其制作方法、电子设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102048924B1 (ko) * 2013-05-16 2019-11-27 삼성디스플레이 주식회사 유기발광표시장치
US10553179B2 (en) * 2017-09-08 2020-02-04 Apple Inc. Electronic devices with ambient light sensors
CN113113454A (zh) * 2021-03-26 2021-07-13 武汉华星光电半导体显示技术有限公司 显示面板及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104752445A (zh) * 2013-12-25 2015-07-01 昆山工研院新型平板显示技术中心有限公司 交互式电子装置及其像素单元
US20150241729A1 (en) * 2014-02-27 2015-08-27 Lg Electronics Inc. Mobile terminal
CN104932670A (zh) * 2014-03-21 2015-09-23 联想(北京)有限公司 交互投影设备及其制作方法
US20160155230A1 (en) * 2014-11-27 2016-06-02 Thomson Licensing Plenoptic camera comprising a light emitting device
CN104570449A (zh) * 2015-01-29 2015-04-29 京东方科技集团股份有限公司 显示面板及其制作方法、显示装置
CN111781756A (zh) * 2020-06-05 2020-10-16 北京小米移动软件有限公司 显示模组及其制作方法、电子设备

Also Published As

Publication number Publication date
US20230027218A1 (en) 2023-01-26

Similar Documents

Publication Publication Date Title
WO2020233243A1 (zh) 一种显示组件、显示屏和电子设备
CN211180477U (zh) 显示面板及显示装置
US6023307A (en) Liquid crystal display with photo conversion elements on a black matrix between color filter plates
US20210356788A1 (en) Liquid crystal display device for under-screen identification scheme
US6153927A (en) Packaged integrated processor and spatial light modulator
WO2021012428A1 (zh) 显示面板及显示装置
CN106950738B (zh) 显示装置与移动电子终端
WO2020108174A1 (zh) 显示屏组件及电子设备
WO2021244214A1 (zh) 显示面板及电子设备
WO2020220513A1 (zh) 显示面板及显示装置
CN208488755U (zh) 显示屏组件及电子设备
US20220321747A1 (en) Display device
WO2022063024A1 (zh) 电子设备
WO2020237782A1 (zh) 显示面板及显示装置
US20220302223A1 (en) Display panel and display device
US11662630B2 (en) Display panel and electronic device
WO2017219439A1 (zh) 彩膜基板及液晶显示装置
CN109031823B (zh) 显示屏、电子设备及其控制方法
CN108922427A (zh) 显示屏组件及电子设备
WO2021081862A1 (zh) 显示装置及电子设备
WO2021204093A1 (zh) 一种显示屏和电子设备
CN107167945B (zh) 显示装置与移动电子终端
CN114038343A (zh) 一种显示屏及终端
CN113540155B (zh) 一种显示屏和电子设备
WO2023000162A1 (zh) 一种显示屏及终端

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 21950428

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE