WO2021082983A1 - Appareil d'affichage et dispositif électronique - Google Patents

Appareil d'affichage et dispositif électronique Download PDF

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Publication number
WO2021082983A1
WO2021082983A1 PCT/CN2020/122137 CN2020122137W WO2021082983A1 WO 2021082983 A1 WO2021082983 A1 WO 2021082983A1 CN 2020122137 W CN2020122137 W CN 2020122137W WO 2021082983 A1 WO2021082983 A1 WO 2021082983A1
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WIPO (PCT)
Prior art keywords
pixels
display area
driving unit
pixel
display device
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PCT/CN2020/122137
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English (en)
Chinese (zh)
Inventor
杨鑫
Original Assignee
Oppo广东移动通信有限公司
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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 WO2021082983A1 publication Critical patent/WO2021082983A1/fr

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    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2074—Display of intermediate tones using sub-pixels
    • 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
    • H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof

Definitions

  • This application relates to the field of electronic technology, in particular to a display device and electronic equipment.
  • the electronic device can display a picture through the display screen.
  • the size of the display screen is getting larger and larger, and the screen-to-body ratio of the display screen is getting higher and higher.
  • the camera is arranged on the side of the non-display surface of the display screen, and a light transmission channel is arranged in the area of the display screen opposite to the camera, and the camera is used to obtain imaging of external light signals passing through the light transmission channel.
  • the embodiments of the present application provide a display device and electronic equipment, which can complete the display area of the display device.
  • an embodiment of the present application provides a display device, including:
  • a first display area including a plurality of first pixels
  • a plurality of first driving units are arranged on the non-display side of the first display area, and each of the first driving units is electrically connected to one or more of the first pixels to drive the one or more First pixel
  • a plurality of second driving units are arranged on the non-display side of the second display area, and each of the second driving units is electrically connected to one or more of the second pixels to drive the one or more Second pixel;
  • the number of thin film transistors included in each second driving unit is smaller than the number of thin film transistors included in each first driving unit.
  • an electronic device including:
  • a display device includes:
  • a first display area including a plurality of first pixels
  • a plurality of first driving units are arranged in the first display area, and each of the first driving units is electrically connected to one or more of the first pixels to drive the one or more first pixels;
  • a plurality of second driving units are arranged in the second display area, and each of the second driving units is electrically connected to one or more of the second pixels to drive the one or more second pixels; among them
  • the number of thin film transistors included in each second driving unit is less than the number of thin film transistors included in any one of the first driving units;
  • a camera the camera includes a lens, the lens is arranged toward the second display area of the display device, and the camera is used to obtain an external light signal passing through the second display area for imaging.
  • FIG. 1 is a schematic diagram of the structure of an electronic device provided by an embodiment of the application.
  • FIG. 2 is a schematic diagram of the first structure of a display device provided by an embodiment of the application.
  • FIG. 3 is a schematic diagram of a first partial structure of a display device provided by an embodiment of this application.
  • Fig. 4 is an enlarged view of part X of the display device in Fig. 3.
  • FIG. 5 is a schematic structural diagram of a driving circuit corresponding to a pixel of the display device in FIG. 4.
  • FIG. 6 is a schematic diagram of a first structure of pixels in a first display area and a first driving unit in a display device provided by an embodiment of the application.
  • FIG. 7 is a schematic diagram of a second structure of the pixels in the first display area and the first driving unit in the display device provided by an embodiment of the application.
  • FIG. 8 is a schematic diagram of a first structure of pixels in a second display area and a second driving unit in a display device according to an embodiment of the application.
  • FIG. 9 is a schematic diagram of a second structure of pixels in a second display area and a second driving unit in a display device provided by an embodiment of the application.
  • FIG. 10 is a schematic diagram of a first structure of a pixel in a second display area of a display device provided by an embodiment of the application.
  • FIG. 11 is a schematic diagram of a second structure of pixels in the second display area of the display device provided by an embodiment of the application.
  • FIG. 12 is a schematic diagram of a third structure of pixels in the second display area of the display device provided by an embodiment of the application.
  • FIG. 13 is a schematic diagram of a fourth structure of pixels in the second display area of the display device provided by an embodiment of the application.
  • FIG. 14 is a schematic diagram of a fifth structure of pixels in the second display area of the display device according to an embodiment of the application.
  • FIG. 15 is a schematic diagram of a sixth structure of pixels in the second display area of the display device provided by an embodiment of the application.
  • FIG. 16 is a schematic diagram of a circuit of the second driving unit in the display device provided by an embodiment of the application.
  • FIG. 17 is a schematic diagram of a circuit of the first driving unit in the display device provided by an embodiment of the application.
  • FIG. 18 is a schematic diagram of the second partial structure of the display device provided by an embodiment of the application.
  • FIG. 19 is a schematic diagram of a first structure of a display device and a camera provided by an embodiment of the application.
  • FIG. 20 is a schematic diagram of a second structure of a display device and a camera provided by an embodiment of the application.
  • the embodiment of the application provides an electronic device and a display device.
  • the electronic equipment may include a display device and a camera, and the lens of the camera is set toward the display device. Therefore, the camera can acquire the external light signal transmitted through the display device for imaging. It is understandable that the light transmittance of the conventional display device is low, so the camera can not perform well in imaging through the conventional display device.
  • the embodiment of the present application can arrange the display device in zones, such as setting the light transmittance of the area corresponding to the camera of the display device to be greater than the light transmittance of other areas of the display device, thereby improving the imaging effect of the camera.
  • the electronic devices provided by the embodiments of the application can be mobile terminal devices such as mobile phones and tablet computers, and can also be game devices, augmented reality (AR) devices, virtual reality (VR) devices, on-board computers, and laptop computers. , Data storage devices, audio playback devices, video playback devices, wearable devices and other devices with display devices, where the wearable devices can be smart bracelets, smart glasses, etc.
  • AR augmented reality
  • VR virtual reality
  • Data storage devices Audio playback devices, video playback devices, wearable devices and other devices with display devices, where the wearable devices can be smart bracelets, smart glasses, etc.
  • FIG. 1 is a schematic structural diagram of an electronic device 10 provided by an embodiment of the application.
  • FIG. 1 shows an example in which the electronic device is a mobile phone, where the electronic device 10 includes a display device 20.
  • the display device 20 includes a first display area 220 and a second display area 240, and the light transmittance of the second display area 240 is greater than that of the first display area 220.
  • the light transmittance of the second display area 240 may be greater than 60%, such as 80%; the light transmittance of the first display area 220 may be lower than 20%, such as 10%.
  • the electronic device 10 is provided with a camera 60, the lens of the camera 60 is set toward the second display area 240, and the camera 60 is used to obtain external light signals passing through the second display area 240 for imaging.
  • the camera 60 is disposed under the second display area 240 of the display device 20, and the camera 60 is used to obtain an external light signal passing through the second display area 240 of the display device 20 and to form images according to the obtained external light signal. Therefore, there is no need to separately provide a channel for imaging by the camera 60 on the display device 20, so the display area of the display device 20 is complete, and the screen-to-body ratio of the display device 20 is increased.
  • the camera 60 can be used as a front camera of the electronic device, and the camera 60 can be used to obtain images such as a user's selfie through the second display area 240 of the display device 20.
  • the display device 20 will be described in detail below.
  • FIG. 2 is a schematic diagram of the first structure of a display device provided by an embodiment of the application.
  • the display device 20 in the embodiment of the present application may include a first display area 220 and a second display area 240 that are adjacent to each other. Both the first display area 220 and the second display area 240 can be used to display text or images, and the first display area 220 and the second display area 240 can display the same image together, for example, the first display area 220 displays a part of a preset image , The second display area 240 displays the remaining part of the preset image. The first display area 220 and the second display area 240 may also display different images.
  • the first display area 220 displays a preset image
  • the second display area 240 displays a task bar image.
  • Both the first display area 220 and the second display area 240 can display content, the display area is complete, the display device 20 has a high screen-to-body ratio, the first display area 220 can surround the second display area 240, and the periphery of the second display area 240 can be both It is adjacent to the first display area 220, that is, the second display area 240 is located in the middle of the first display area 220.
  • the first display area 220 may also partially surround the second display area 240, and a part of the edge of the second display area 240 is adjacent to the first display area 220.
  • the second display area 240 is located at a corner of the display device 20 or is located on the display device. The top middle of 20.
  • FIG. 3 is a schematic diagram of the first partial structure of the display device according to an embodiment of the application
  • FIG. 4 is an enlarged view of the X part of the display device in FIG. 3.
  • the first display area 220 includes a plurality of first pixels 226, and the second display area 240 includes a plurality of second pixels 246.
  • the size of the second pixel 246 may be larger than the size of the first pixel 226, so that the distribution density of the second pixel 246 is smaller than the distribution density of the first pixel 226.
  • the distance between two adjacent second pixels 246 is positively correlated with the size of the second pixels 246. That is, the larger the size of the second pixel 246, the larger the separation distance between two adjacent second pixels 246. Therefore, the distribution density of the second pixels 246 in the second display area 240 is smaller than the distribution density of the first pixels 226 in the first display area 220. That is, in the same area, the number of the second pixels 246 is smaller, so that compared with the first display area 220, the light transmittance of the second display area 240 can be increased.
  • the size of the second pixel 246 may be four times the size of the first pixel 226, so that the area of each second pixel 246 in the second display area 240 is similar to the four first pixels 226 in the first pixel 226.
  • the area of a display area 220 is the same, so that the arrangement of the second pixels 246 in the second display area 240 can be the same as the arrangement of the first pixels 226 in the first display area 220. Therefore, it is convenient for the first display area 220 and the second display area 220.
  • the pixel layout of the display area 240 is the same.
  • each pixel set 242 can share one driving signal line to reduce the amount of driving signal lines.
  • Quantity and total area Considering that the driving signal lines may be non-light-transmissive metal traces, reducing the number of driving signal lines can increase the light transmittance of the second display area 240 and improve the imaging effect of the camera 60.
  • the driving signal line can also be a light-transmitting ITO (Indium Tin Oxides, indium tin oxide) trace. Although the light transmittance of the ITO trace is very high, the reduction of some ITO traces can still improve the transparency of the second display area 240. The light rate is used to improve the imaging effect of the camera 60.
  • FIG. 5 is a schematic structural diagram of a driving circuit corresponding to a pixel of the display device in FIG. 4.
  • the display device 20 further includes a plurality of first driving units 228 and a plurality of second driving units 248.
  • the plurality of first driving units 228 are arranged in the first display area 220, and specifically may be arranged on the non-display side of the first display area 220. It can be understood that the non-display side of the first display area 220 is the side where the first display area 220 does not display information, that is, the side of the first display area 220 facing the inside of the electronic device 10.
  • Each of the first driving units 228 is electrically connected to one or more of the first pixels 226 to drive the one or more of the first pixels 226.
  • the first driving unit 228 drives the first pixel 226 electrically connected to the first driving unit 228 in an active driving manner. That is, the first display area 220 is an active matrix organic light emitting diode (AMOLED) display area.
  • AMOLED active matrix organic light emitting diode
  • the plurality of second driving units 248 are arranged in the second display area 240, and specifically may be arranged on the non-display side of the second display area 240. It can be understood that the non-display side of the second display area 240 is the side where the second display area 240 does not display information, that is, the side of the second display area 240 facing the inside of the electronic device 10.
  • Each of the second driving units 248 is electrically connected to one or more of the second pixels 246 to drive the one or more of the second pixels 246.
  • the second driving unit 248 drives the second pixel 246 electrically connected to the second driving unit 248 in an active driving manner. That is, the second display area 240 is an active matrix organic light emitting diode (AMOLED) display area.
  • AMOLED active matrix organic light emitting diode
  • FIG. 6 is a first structure diagram of the pixels in the first display area and the first driving unit in the display device according to an embodiment of the application.
  • each first driving unit 228 is electrically connected to one first pixel 226 to drive the one first pixel 226. That is, each first driving unit 228 is used to drive one first pixel 226.
  • each first driving unit 228 may be used to drive one first pixel 226 to improve the control accuracy when controlling the display of the first display area 220.
  • FIG. 7 is a schematic diagram of a second structure of the pixels in the first display area and the first driving unit in the display device according to an embodiment of the application.
  • the number of first driving units 228 is less than the number of first pixels 226.
  • Each first driving unit 228 is electrically connected to at least two first pixels 226 to drive the at least two first pixels 226.
  • the at least two first pixels 226 electrically connected to the same first driving unit 228 are connected in parallel. That is, each first driving unit 228 is used to drive at least two first pixels 226, so that the number of first driving units 228 can be reduced.
  • each first driving unit 228 may be electrically connected to three first pixels 226 to drive the three first pixels 226.
  • the three first pixels 226 electrically connected to the same first driving unit 228 may be connected in parallel.
  • FIG. 8 is a first structure diagram of the pixels in the second display area and the second driving unit in the display device according to an embodiment of the application.
  • each second driving unit 248 is electrically connected to one second pixel 246 to drive the one second pixel 246. That is, each second driving unit 248 is used to drive one second pixel 246.
  • each second driving unit 248 may be used to drive one second pixel 246 to improve the control accuracy when controlling the display of the second display area 240.
  • FIG. 9 is a schematic diagram of a second structure of the pixels in the second display area and the second driving unit in the display device according to an embodiment of the application.
  • the number of second driving units 248 is less than the number of second pixels 246.
  • Each second driving unit 248 is electrically connected to at least two second pixels 246 to drive the at least two second pixels 246.
  • the at least two second pixels 246 electrically connected to the same second driving unit 248 are connected in parallel. That is, each second driving unit 248 is used to drive at least two second pixels 246 to reduce the number of second driving units 248, thereby helping to increase the light transmittance of the second display area 240.
  • each second driving unit 248 may be electrically connected to three second pixels 246 to drive the three second pixels 246.
  • the three second pixels 246 electrically connected to the same second driving unit 248 may be connected in parallel.
  • each second driving unit 248 may be disposed opposite to one second pixel 246, and the second driving unit 248 may be disposed opposite to the side or corner of the second pixel 246. That is, the orthographic projection of each second driving unit 248 on the second pixel 246 opposite to the second driving unit 248 is located on the side or corner of the second pixel 246.
  • the second driving unit 248 includes an electronic device that does not transmit light, such as a thin film transistor (TFT), when the second driving unit 248 is arranged opposite to the side or corner of the second pixel 246, it can be The influence of the second driving unit 248 on the light transmittance of the second display area 240 is reduced, so that the light transmittance of the second display area 240 can be increased, so as to improve the camera's ability to obtain external light signals passing through the second display area 240. The imaging effect during imaging.
  • TFT thin film transistor
  • FIG. 10 is a schematic diagram of a first structure of pixels in the second display area of the display device according to an embodiment of the present application.
  • the plurality of second pixels 246 of the second display area 240 may be divided into a plurality of pixel units 244, and each pixel unit 244 includes at least three second pixels 246 of different colors.
  • Each of the pixel units 244 can be displayed in mixed colors, so that each pixel unit 244 can display the required colors according to requirements.
  • the pixel unit 244 may include the second pixels 246 in three colors of R, G, and B, so that various colors such as red, green, blue, white, pink, cyan, etc. can be displayed as required.
  • At least two second pixels 246 of the same color of the pixel units 244 are connected in parallel to form a pixel set 242.
  • 4 pixel units 244 can form 3 pixel sets 242. Specifically, four red (R) second pixels 246 are connected in parallel to form a pixel set 242, four green (G) second pixels 246 are connected in parallel to form a pixel set 242, and four blue (B) second pixels 246 are connected in parallel to form a pixel set 242, and the four pixel units 244 form a display unit.
  • one pixel unit 244 may also include second pixels 246 of multiple colors such as R, G, B, W or R, G, B, Y, etc.
  • the parallel connection of the second pixels 246 may be formed by the direct connection of the second pixels 246.
  • the plurality of second pixels 246 are connected in parallel by connecting wires of the same material or connected in parallel by connecting wires of other materials.
  • the parallel connection of the second pixels 246 may also be connected in parallel in other ways.
  • the second display area 240 may include a plurality of metal anodes, and each metal anode is disposed opposite to and electrically connected to a second pixel 246.
  • the parallel connection of a plurality of second pixels 246 can be realized by the parallel connection of the metal anodes.
  • At least two second pixels 246 that are electrically connected to the same second driving unit 248 can be connected in parallel through one metal anode, so that one second driving unit 248 can be simultaneously connected. At least two second pixels 246 connected in parallel are driven.
  • each of the second driving units 248 can be used to drive at least two second pixels 246 in one pixel unit 244, and each of the second driving units 248 can also be used to drive at least two second pixels 246 in one pixel unit 244. It can be used to drive at least two second pixels 246 in one pixel set 242.
  • the number of the second driving units 248 may be a quarter of the number of the second pixels 246, that is, the number of the second pixels 246 is four times the number of the second driving units 248 .
  • Each of the second driving units 248 is electrically connected to the four second pixels 246 to drive the four second pixels 246.
  • each of the second driving units 248 may be electrically connected to four second pixels 246 in a pixel set 242 to drive four second pixels 246 in a pixel set 242 connected in parallel.
  • the four second pixels 246 electrically connected to the same second driving unit 248 may be pixels of the same color, that is, the four second pixels 246 driven by each second driving unit 248 may be the same. Color pixels.
  • the four second pixels 246 driven by one second driving unit 248 may all be blue (B) pixels.
  • the four second pixels 246 electrically connected to the same second driving unit 248 may also include pixels of different colors, that is, the four second pixels 246 driven by each second driving unit 248 may include pixels of different colors. For example, it may include at least three different color pixels.
  • the four second pixels 246 driven by one second driving unit 248 may include R, G, B, and R color pixels, or may include R, G, B, and W color pixels, or may also include R color pixels. , G, B, Y color pixels, etc.
  • the second display area 240 includes a gate line (not shown in the figure) and a data line, and the gate line, the data line, and a plurality of second driving units cooperate to drive each second pixel 246.
  • the gate lines and the data lines may be arranged in different layers and arranged alternately. For example, the gate lines are arranged in rows and the data lines are arranged in columns.
  • the arrangement of the second pixels 246 of the second display area 240 may be one of a standard RGB arrangement, a Pentile arrangement or a Delta arrangement. It should be noted that the data line and the second pixel 246 are not in the same layer.
  • FIG. 11 is a schematic diagram of the second structure of the pixels in the second display area of the display device provided by an embodiment of the application.
  • FIG. 12 is a schematic diagram of a third structure of pixels in the second display area of the display device according to an embodiment of the application
  • FIG. 13 is a second display area of the display device according to an embodiment of the application. Schematic diagram of the fourth structure of the pixel.
  • FIG. 12 shows a schematic diagram of the second pixel 246 in the second display area being a standard RGB arrangement
  • FIG. 13 shows the second pixel 246 in the second display area.
  • Schematic diagram of Delta arrangement A plurality of second pixels 246 are arranged in an array, and the R, G, and B second pixels 246 of the same color are all arranged in an array.
  • a first driving signal line 2462 is provided next to two adjacent pixels of the same color, and passes perpendicular to it.
  • the second driving signal line 2464 is connected in parallel.
  • first driving signal line 2462 next to the second pixel of the same color adjacent to the column, and it is connected in parallel through the second driving signal line 2464 perpendicular to the second pixel.
  • the B second pixel directly connects the two first driving signal lines 2462 in parallel at one end
  • the R second pixel directly connects the two first driving signal lines 2462 in parallel at the other end.
  • G second pixels are connected in parallel through a third driving signal line 2466, and the third driving signal line 2466 bypasses the B second pixels and R second pixels arranged between the two columns of G second pixels, and connects R second pixels at intervals The drive signal line.
  • FIG. 14 is a schematic diagram of a fifth structure of pixels in the second display area of the display device according to an embodiment of the present application.
  • the arrangement of the second pixels 246 in the second display area is a standard RGB arrangement or a Pentile arrangement.
  • a plurality of the second pixels 246 of the same color connected in parallel are perpendicular to the data line, and a first driving signal line 2462 is arranged along the direction perpendicular to the data line.
  • the first driving signal line 2462 is connected to the first driving signal.
  • the vertical second driving signal line 2464 of the line 2462 is electrically connected to the second pixel 246, wherein the second driving signal connecting the second pixels 246 of different colors is arranged at intervals.
  • FIG. 14 for ease of understanding, the following takes FIG. 14 as an example for detailed description.
  • a first driving signal line 2462 is provided on both sides of a plurality of second pixels 246 of the same color, a first driving signal line 2462 is provided in the middle, and a plurality of G second pixels are provided.
  • 246 is electrically connected to the first driving signal line 2462 through a plurality of second driving signal lines 2464 perpendicular to the first driving signal line 2462 to realize the parallel connection of a plurality of G communication pixels, and a plurality of B second pixels 246 are connected to the G
  • the second pixel 246 is connected in parallel in a similar manner.
  • the first driving signal line 2462 electrically connected to the R second pixel 246 is provided at the end.
  • the second display area also includes a plurality of R second pixels 246 connected in parallel.
  • the third driving signal line 2466 and the third driving signal line 2466 avoid the driving signal lines electrically connected to the G second pixel 246 and the B second pixel 246 to connect a plurality of R second pixels 246 in parallel. Specifically, the third driving signal line 2466 bypasses the G second pixel 246 along the side opposite to the second driving signal line 2464 connected to the G second pixel 246, and also along the second driving signal connected to the B second pixel 246 The opposite side of the line 2464 bypasses the B second pixel 246.
  • the second pixel 246 in one pixel unit 244 can also be connected in parallel with the second pixels 246 of different colors in at least one other pixel unit 244.
  • the connection forms a pixel set 242.
  • the R pixel of one pixel unit 244 and the G pixel and B pixel of another pixel unit 244 are connected in parallel to form a pixel set 242.
  • the R pixel of one pixel unit 244, the G pixel of another pixel unit 244, and the B pixel of another pixel unit 244 are connected in parallel to form a pixel set 242.
  • the pixel set 242 may also be formed by connecting at least two second pixels 246 of different colors in the same pixel unit 244 in parallel.
  • FIG. 15 is a schematic diagram of a sixth structure of pixels in the second display area of the display device provided by an embodiment of the application. Among them, the R pixels, B pixels, and G pixels in one pixel set 244 are connected in parallel to form a pixel set 242. It should be noted that, it is also possible that only the second pixels 246 of two colors are connected in parallel, and the second pixels 246 of another color are driven separately.
  • the first driving unit 228 and the second driving unit 248 can be set to one of 7T1C, 5T1C, 2T1C, and 1T as required.
  • T refers to thin film transistors (TFT)
  • C refers to capacitors.
  • the TFT is opaque, or it is understood that the light transmittance of the TFT is very low, the more the number of TFTs included in each drive unit, the more the light transmittance of the pixels arranged opposite to the drive unit. Correspondingly, the fewer the number of TFTs included in each driving unit, the higher the light transmittance of the pixels arranged opposite to the driving unit.
  • the second driving unit 248 disposed in the second display area 240 may be a simpler driving circuit than the first driving unit 228 of the first display area 220. That is, the number of thin film transistors (TFT) included in each second driving unit 248 is less than the number of thin film transistors (TFT) included in any one of the first driving units 228. Therefore, the number of opaque TFTs in the second driving unit 248 is smaller, so that the light transmittance of the second display area 240 is higher, that is, the light transmittance of the second display area 240 can be improved.
  • the second driving unit is a 7T1C driving circuit
  • the first driving unit may be a driving circuit such as 5T1C or 2T1C.
  • FIG. 16 is a schematic diagram of a circuit of the second driving unit in the display device according to an embodiment of the application
  • FIG. 17 is a circuit of the first driving unit in the display device according to an embodiment of the application. Schematic.
  • the second driving unit 248 is a 1T driving circuit, that is, the second driving unit 248 includes one TFT.
  • VDATA is a data line
  • SEL can be understood as a gate line
  • T1 is a TFT
  • OLED2 is a second pixel.
  • the figure shows a way of connecting three second pixels in parallel. It is understandable that other numbers of second pixels can be connected in parallel as needed, such as 2, 4, 9, 16 second pixels in parallel, etc.
  • the first driving unit 228 is a 2T1C driving circuit, that is, the first driving unit 228 includes two TFTs and one capacitor.
  • VDATA is a data line
  • SEL can be understood as a gate line
  • VDD is a power supply line
  • T1 and T2 are TFTs
  • Cs is a capacitor
  • OLED1 is a first pixel.
  • the figure shows a way of connecting three first pixels in parallel. It is understandable that other numbers of first pixels can be connected in parallel as required, such as 2, 4, 9, 16 first pixels in parallel.
  • FIG. 16 shows that the second driving unit 248 includes one TFT
  • FIG. 17 shows that the first driving unit 228 includes two TFTs, it can also be configured in other ways in practical applications.
  • each second driving unit 248 when the number of TFTs included in each second driving unit 248 is one, the number of TFTs included in each first driving unit 228 is two, five, or seven. That is, the second driving unit 248 is a 1T driving circuit, and the first driving unit 228 may be a 2T1C, 5T1C, or 7T1C driving circuit.
  • the second driving unit 248 is a 2T1C driving circuit
  • the first driving unit 228 may be a 5T1C or 7T1C driving circuit.
  • the second driving unit 248 is a 5T1C driving circuit
  • the first driving unit 228 is a 7T1C driving circuit.
  • FIG. 18 is a schematic diagram of the second partial structure of the display device according to an embodiment of the application.
  • the display device includes a substrate 291, a driving circuit layer 292, an anode layer 293, a light emitting layer 294, and a common electrode layer 295 stacked in sequence.
  • the substrate 291 can be used as a carrying platform of the display device, and the substrate 291 can be made of glass, plastic, resin, or other materials.
  • the material of the substrate 291 may be polyimide (PI).
  • the driving circuit layer 292 is disposed on the substrate 291, and a driving unit may be disposed in the driving circuit layer 292.
  • the driving circuit layer 292 may be provided with a first driving unit 228 for driving the first pixel 226 of the first display area 220 and a second driving unit 248 for driving the second pixel 246 of the second display area 240. .
  • the anode layer 293 is disposed on the driving circuit layer 292 or the substrate 291.
  • the anode layer 293 includes a first anode layer 2932, a first insulating layer 2934, and a second anode layer 2936.
  • the first insulating layer 2934 is disposed on the first anode layer 2932 and the second anode layer.
  • the two anode layers 2936 are used to separate and insulate the first anode layer 2932 and the second anode layer 2936.
  • the first anode layer 2932 includes the first signal line (gate line) in the first direction and the second anode layer 2936 Including the second signal line (data line) in the second direction, the first direction and the second direction can be arranged vertically, the first signal line and the second signal line are electrically connected to the first driving unit 228 and the second driving unit 248 ,
  • the driving chip of the display device controls the first driving unit 228 and the second driving unit 248 through the first signal line and the second signal line.
  • the anode layer 293 may also include a metal anode layer 2938.
  • the metal anode layer 2938 is adjacent to the light-emitting layer 294.
  • the metal anode of the metal anode layer 2938 and the pixel of the light-emitting layer 294 are adjacent and electrically connected.
  • the light-emitting layer 294 is disposed on the anode layer 293.
  • the light-emitting layer 294 includes a pixel definition layer 2942.
  • the pixel definition layer 2942 has a plurality of pixel holes. Each pixel hole is provided with a pixel (the first pixel 226 or the second pixel 246). Including organic light-emitting materials.
  • the common electrode layer 295 is disposed on the light emitting layer 294, and the anode layer 293 and the common electrode layer 295 are disposed on both sides of the pixel, and are used to jointly drive the pixel.
  • a planarization layer 296 may also be provided on the common electrode layer 295. Wherein, after the pixel is arranged in the pixel hole, the pixel does not fill the pixel hole. After the common electrode layer 295 is arranged on the pixel, a groove will appear. The planarization layer 296 can fill in the groove and cover the entire light-emitting layer 294 , Used to protect the light-emitting layer 294 and so on.
  • a touch layer 297 may be further provided on the planarization layer 296, and the touch layer 297 may be used to detect a touch operation of the user.
  • a polarizer (not shown in the figure) can also be provided on the touch layer 297, and the polarizer can be used to prevent internal light from being transmitted out and prevent the user from seeing the internal driving unit and other components.
  • part of the structure can be added or reduced as required.
  • at least one of the touch layer 297 and the polarizer can be reduced.
  • a protective layer can be added between the planarization layer 296 and the touch layer 297, and the protective layer can be made of the same material as the substrate 291.
  • each layer structure of the second display area 240 except for the driving circuit layer, light-transmitting materials are used to improve the light transmittance of the second display area 240.
  • the substrate, pixel definition layer, common electrode layer, planarization layer, and touch layer of the second display area 240 can be made of light-transmitting materials, and the signal lines in the anode layer can be made of light-transmitting materials such as nano-silver. to make.
  • the TFT of the driving circuit layer cannot use light-transmitting materials, and other parts of the driving circuit layer except TFTs can also use light-transmitting materials. It can be understood that the solutions of increasing the light transmittance of the material and changing the wiring arrangement to increase the light transmittance of the second display area 240 are all within the scope of the present application.
  • the lens of the camera is set toward the second display area of the display device, and the camera is used to acquire external light signals passing through the second display area for imaging. It is understandable that in order to reduce the space occupied by the camera, the lens of the camera may be close to or adjacent to the substrate of the display device.
  • the substrate of the display device is mainly used to carry other layer structures of the display device, and does not need special functions. Because, in order to further reduce the space occupied by the camera, the camera part can be arranged in the substrate.
  • FIG. 19 is a schematic diagram of the first structure of a display device and a camera provided by an embodiment of the application.
  • a first mounting hole 2912 is provided at a position of the substrate 291 relative to the camera 60, and the camera 60 is at least partially disposed in the first mounting hole 2912. Wherein, the first mounting hole 2912 is disposed opposite to the second display area. After the camera 60 is partially disposed in the first mounting hole 2912, the lens 62 of the camera 60 can face the second display area.
  • the first mounting hole 2912 may be a blind hole, that is, the thickness of the part of the substrate 291 relative to the camera 60 is smaller than the thickness of other parts.
  • the substrate 291 is still a complete substrate 291, which does not affect its function of carrying other layer structures of the display device 20, and can be vacant Part of the space accommodates the camera 60.
  • the installation manner of the first mounting hole 2912 and the camera 60 can be set according to the size of the first mounting hole 2912 and the size of the camera 60. Exemplarily, if the space of the first mounting hole 2912 is not enough to install the entire camera 60, the lens 62 of the camera 60 is partially disposed in the first mounting hole 2912. If the camera 60 is sufficiently small, the entire camera 60 is set in the first mounting hole 2912.
  • FIG. 20 is a schematic diagram of a second structure of a display device and a camera according to an embodiment of the present application.
  • the first mounting hole 2912 on the substrate 291 is a through hole
  • the driving circuit layer 292 has a second mounting hole 2922 opposite to the camera 60.
  • the second mounting hole 2922 is opposite to the first mounting hole 2912, and the second mounting hole 2922 is in communication with the first mounting hole 2912.
  • the camera 60 may also be at least partially located in the second mounting hole 2922.
  • the lens 62 of the camera 60 is partially located in the first mounting hole 2912 and the second mounting hole 2922.
  • the second mounting hole 2922 may be a through hole or a blind hole.
  • the first mounting hole 2912 and the second mounting hole 2922 can be made after the partial laminated structure of the display device 20 is formed. For example, after the driving circuit layer, anode layer, light-emitting layer, and common electrode layer of the display device 20 are all disposed on the substrate 291, the first mounting hole 2912 and the second mounting hole 2912 and the second mounting hole 2912 are made by laser engraving at the position corresponding to the lens 62 of the camera 60. Mounting hole 2922.
  • the camera 60 can be used as a front camera of an electronic device.
  • the lens of the front camera cannot be moved.
  • the substrate 291 and the driving circuit layer 292 of the display device may be provided with a first mounting hole 2912 and a second mounting hole 2922, and the lens 62 of the camera 60 may be installed in the first mounting hole 2912. And the second mounting hole 2922, the lens 62 of the camera 60 can be moved, so that the camera 60 can realize functions such as focusing through the movement of the lens 62.
  • the electronic device 10 further includes a housing 40 and a camera 60.
  • the housing 40 may include a back cover (not shown in the figure) and a frame 420, and the frame 420 is arranged around the periphery of the back cover.
  • the display device 20 may be disposed in the frame 420, and the display device 20 and the back cover may be used as two opposite sides of the electronic device 10.
  • the camera 60 is provided between the back cover of the housing 40 and the display device 20.
  • the display device 20 may be an organic light-emitting diode display device (Organic Light-Emitting Diode, OLED).
  • OLED Organic Light-Emitting Diode
  • the display device 20 may be a full screen, that is, the display surface of the display device 20 is basically a display area.
  • the display device 20 may also be provided with a cover plate.
  • the cover plate covers the display device 20 to protect the display device 20 and prevent the display device 20 from being scratched or damaged by water.
  • the cover plate may be a transparent glass cover plate, so that the user can observe the information displayed by the display device 20 through the cover plate.
  • the cover plate may be a cover plate made of sapphire.
  • Electronic equipment can also include circuit boards, batteries, and midplanes.
  • the frame 420 is arranged around the middle board, wherein the frame 420 and the middle board may form a middle frame of the electronic device 10.
  • the middle board and the frame 420 form a accommodating cavity on both sides of the middle board.
  • One accommodating cavity is used for accommodating the display device 20, and the other accommodating cavity is used for accommodating circuit boards, batteries, and other electronic components or functions of the electronic device 10 Components.
  • the middle plate may have a thin plate or sheet-like structure, or a hollow frame structure.
  • the middle board is used to provide support for the electronic components or functional components in the electronic device 10 so as to install the electronic components and functional components in the electronic device 10 together.
  • Functional components such as the camera 60, the receiver, and the battery of the electronic device 10 can all be mounted on the midplane or circuit board for fixing.
  • the material of the middle plate may include metal or plastic.
  • the circuit board can be installed on the midplane.
  • the circuit board may be the main board of the electronic device 10.
  • the circuit board may be integrated with one or more of functional components such as a microphone, a speaker, a receiver, a headphone interface, an acceleration sensor, a gyroscope, and a processor.
  • the display device 20 may be electrically connected to the circuit board to control the display of the display device 20 through a processor on the circuit board. Both the display device 20 and the camera 60 may be electrically connected to the processor.
  • the processor controls the second display area 240 of the display device 20 to turn off the display, and controls the camera 60 to capture images through the second display area 240; when the processor does not receive the shooting instruction, and receives When the image instruction is displayed, the processor controls the first display area 220 and the second display area 240 of the display device 20 to display an image together.
  • the battery can be installed on the midplane. At the same time, the battery is electrically connected to the circuit board, so that the battery can supply power to the electronic device 10.
  • a power management circuit may be provided on the circuit board. The power management circuit is used to distribute the voltage provided by the battery to various electronic components in the electronic device 10.

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

Abstract

L'invention concerne un appareil d'affichage (20) et un dispositif électronique (10). L'appareil d'affichage comprend : une première région d'affichage (220) comprenant une pluralité de premiers pixels (226) ; une pluralité de premières unités d'attaque (228), chacune des premières unités d'attaque (228) servant à attaquer un ou plusieurs premiers pixels (226) ; une seconde région d'affichage (240) comprenant une pluralité de seconds pixels (246) ; et une pluralité de secondes unités d'attaque (248), chacune des secondes unités d'attaque (248) servant à attaquer un ou plusieurs seconds pixels (246), et le nombre de transistors à couches minces compris dans chaque seconde unité d'attaque (248) étant inférieur au nombre de transistors à couches minces compris dans chaque première unité d'attaque (228).
PCT/CN2020/122137 2019-10-31 2020-10-20 Appareil d'affichage et dispositif électronique WO2021082983A1 (fr)

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CN201911050506.2 2019-10-31
CN201911050506.2A CN110648624A (zh) 2019-10-31 2019-10-31 显示装置及电子设备

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CN110648624A (zh) * 2019-10-31 2020-01-03 Oppo广东移动通信有限公司 显示装置及电子设备
CN111048005B (zh) * 2020-01-06 2021-06-22 昆山国显光电有限公司 显示面板及显示装置
CN112366216A (zh) * 2020-10-20 2021-02-12 Oppo广东移动通信有限公司 显示装置和电子设备
CN113299240B (zh) * 2021-05-13 2023-05-09 Oppo广东移动通信有限公司 显示屏、显示模组和终端设备

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