CN114400244A - Display screen and display device - Google Patents

Display screen and display device Download PDF

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Publication number
CN114400244A
CN114400244A CN202210025428.6A CN202210025428A CN114400244A CN 114400244 A CN114400244 A CN 114400244A CN 202210025428 A CN202210025428 A CN 202210025428A CN 114400244 A CN114400244 A CN 114400244A
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type
sub
pixel
pixels
light
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CN202210025428.6A
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Chinese (zh)
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刘明星
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Kunshan Govisionox Optoelectronics Co Ltd
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Kunshan Govisionox Optoelectronics Co Ltd
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Publication of CN114400244A publication Critical patent/CN114400244A/en
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • 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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/30—Devices specially adapted for multicolour light emission
    • H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
    • H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels

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

Abstract

The invention relates to a display screen and a display device, wherein the display screen comprises: the pixel density of the solid pixels in the first area is less than that in the second area; a first type of light emitting cells in the first region is different from a second type of light emitting cells of the second region; the density of the first type of light emitting cells in the first region is the same as the density of the second type of light emitting cells in the second region. This embodiment is through setting up normal display area and camera display area to make the entity pixel density in normal display area be greater than the entity pixel density in camera display area, thereby make light can see out in order to realize higher luminousness from the pixel clearance, and then realize full screen or full-screen display.

Description

Display screen and display device
The application is applied on the 09 th month in 2018, and the application numbers are as follows: 201810135642.0 entitled "display Panel and display device".
Technical Field
The invention relates to the field of display, in particular to a display screen and a display device.
Background
In the conventional art, a display screen includes an effective display area and a bezel surrounding the effective display area. For a smart phone with a touch function, the effective display area can be used for displaying a human-computer interface and operating applications provided by the human-computer interface. For example, a piece of video played by a video playing application of a smartphone is enjoyed. Typically, the camera assembly may be disposed on the bezel.
In implementing the conventional technique, the inventors found that the following technical problems exist:
for some applications that require a full screen or full screen display, the presence of the bezel portion affects the visual experience. For example, a picture or combination of an image and a border may be visually inconsistent.
Disclosure of Invention
Therefore, it is necessary to provide a solution to the above-mentioned technical problem of visual incompatibility caused by the combination of the application and the frame that require full-screen or full-screen display.
A display screen, comprising: the pixel density of the solid pixels in the first area is less than that in the second area; a first type of light emitting cells in the first region is different from a second type of light emitting cells of the second region; the density of the first type of light emitting cells in the first region is the same as the density of the second type of light emitting cells in the second region.
In one embodiment, the first type of light emitting unit is composed of a red sub-pixel, a green sub-pixel and a blue sub-pixel;
and the number of at least one of the red sub-pixel, the green sub-pixel and the blue sub-pixel is different from the number of the other two sub-pixels.
In one embodiment, the number of the first type light-emitting units is multiple;
the number of the second type light-emitting units is multiple.
In one embodiment, the first type of light emitting units are distributed in the shape of a pair of triangles sharing a common side.
In one embodiment, the first type of light emitting unit includes 1 red sub-pixel, 2 green sub-pixels and 1 blue sub-pixel, wherein the red sub-pixel and the blue sub-pixel are located on a common side, and the green sub-pixel is located on the other two vertices.
In one embodiment, the first type of light emitting units are distributed in the shape of a pair of triangles sharing a vertex.
In one embodiment, the first type of light emitting unit includes 1 red sub-pixel, 2 green sub-pixels, and 2 blue sub-pixels, wherein the red sub-pixels are located at a common vertex, and the green sub-pixels and the blue sub-pixels are located at two other vertices.
In one embodiment, the second type of light emitting unit is composed of three sub-pixels, namely a red sub-pixel, a green sub-pixel and a blue sub-pixel.
A display device, comprising:
the display screen comprises a first area and a second area, wherein the density of solid pixels in the first area is less than that in the second area; a first type of light emitting cells in the first region is different from a second type of light emitting cells of the second region; the density of the first type of light emitting cells in the first region is the same as the density of the second type of light emitting cells in the second region
An off-screen light sensitive module capable of sensing light impinging through a first area of the display screen.
In one embodiment, the under-screen photosensitive module is at least one of a photoelectric sensor and a camera.
The technical scheme provided by the application has at least the following beneficial technical effects:
through setting up normal display area and camera display area to make the entity pixel density in normal display area be greater than the entity pixel density in camera display area, thereby make light can see through in order to realize higher luminousness from the pixel clearance, and then realize full screen or full screen display.
Drawings
Fig. 1 is a schematic structural diagram of a display screen provided in the present application.
Fig. 2 is a schematic partial structure diagram of a display screen provided in the present application.
Fig. 3 is a schematic structural diagram of a first type of light-emitting unit in a first area of the display screen provided in fig. 2.
Fig. 4 is a partial structural schematic view of another display screen provided in the present application.
Fig. 5 is a schematic structural diagram of a first type of light-emitting unit in a first area of the display screen provided in fig. 4.
Fig. 6 is a schematic structural diagram of a display device provided in the present application.
In the drawings, the components represented by the respective reference numerals are listed below:
100. a first region; 200. a second region; 30. a display screen; 31. photosensitive module under the screen.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
An embodiment of the present invention provides a display screen, as shown in fig. 1, including a first area 100 and a second area 200. The first area 100 is typically used to position the photosensitive module under the screen in a particular application. For example, a camera for taking a picture, a photosensor for sensing whether a human face is in close proximity to the display screen to determine whether to turn off the display of the display screen. The second area 200 may be generally used for displaying images or implementing a touch function in a specific application. The second region 200 is mainly functionally embodied as a main display region having a high density of solid pixels. The solid pixel density refers to the number of physical pixels actually prepared in a unit area, but not the number of pixels participating in display in the unit area. The first area 100 is mainly functionally embodied as a sub-display area having a low density of physical pixels. The first area 100 is also functionally embodied to allow light to pass through the display screen to the inside to satisfy the illumination intensity requirement or the light sensitivity requirement of the photosensitive module under the screen. Therefore, in the present embodiment, the density of the solid pixels in the first area 100 is less than that in the second area 200, so that the light passes through the display screen and enters the inside.
The embodiment provided by the application has at least the following effects: since the first area 100 has a lower density of solid pixels, an under-screen photosensitive module can be disposed under the first area 100, so that light can penetrate from the sub-pixel gaps to achieve a higher transmittance, and a full-screen or full-screen display is achieved.
In the embodiment shown in fig. 1, the second area 200 is distributed in the middle of the display screen as the main display area of the display screen. The first area 100 is distributed on the upper side of the display screen as an auxiliary display area of the display screen. It should be noted that the positional relationship between the first area 100 and the second area 200 here may be adjusted according to actual situations. For example, the first area 100 may be located on the left, right, or lower side of the second area 200. Alternatively, the first regions 100 are distributed on the periphery of the second region 200, and surround the second region 200 in the middle. As long as there are two opposite regions of the display screen that require different illumination intensities, it should be understood that the scope of the present application is not to be substantially excluded.
Further, in one embodiment provided herein, the first type of light emitting cells in the first region is different from the second type of light emitting cells in the second region; the density of the first type of light emitting cells in the first region is the same as the density of the second type of light emitting cells in the second region
The first-type light-emitting unit consists of a red sub-pixel, a green sub-pixel and a blue sub-pixel;
the number of at least one of the red, green and blue sub-pixels is different from the other two sub-pixels.
In the embodiment provided by the application, on the basis of the main display area of the conventional display screen, no change is made, that is, the second area 200 is not changed, and the sub-pixels of the auxiliary display area of the conventional display screen are changed, that is, the sub-pixels of the first area 100 are changed, so that the first type of light-emitting units in the first area are different from the second type of light-emitting units in the second area, and thus, light can penetrate from the sub-pixel gaps of the first area to realize higher light transmittance, so that full-screen or full-screen display is realized, and meanwhile, the work of the photosensitive module under the screen is not influenced. Specifically, the number of at least one of the red, green, and blue sub-pixels is made different from the number of the other two sub-pixels. Or it will be understood that white balance will be achieved by sharing at least one of the red, green and blue sub-pixels while providing a gap through which light passes.
Further, in an embodiment provided by the present application, the number of the first type light emitting units is multiple;
the number of the second type light-emitting units is multiple.
An Active Matrix Organic Light Emitting Diode (AMOLED) is a display technology in which Organic Light Emitting Diode (OLED) pixels are deposited or integrated on a TFT array, and the current flowing into each OLED pixel is controlled by the TFT array, so as to determine the intensity of Light emitted by each pixel. In the embodiments provided herein, the light emission may be controlled by using the same driving algorithm for the first type light emitting unit and the second type light emitting unit, or by using different driving algorithms for the first type light emitting unit and the second type light emitting unit.
In a specific application, for example, for a display screen of a mobile phone, a display part of a traditional display screen of the mobile phone is not changed, namely, a plurality of second-type light-emitting units are arranged, and for a position of the traditional display screen of the mobile phone, where a front camera is arranged, a plurality of first-type light-emitting units are arranged. This has the advantage that the front camera needs a certain light intensity or exposure to light to achieve a good shooting effect. When the front camera is arranged on the lower layer of the layered structure of the display screen, the first type of light-emitting units are distributed. Due to the first type of light-emitting units arranged in the first area, at least one of the red sub-pixel, the green sub-pixel and the blue sub-pixel is shared to realize white balance and provide a gap for light to penetrate through, so that the requirements of the illumination intensity or the light sensing quantity of the photosensitive module under the screen can be met.
Further, in an embodiment provided by the present application, the first type light emitting units are distributed in a shape of a pair of triangles sharing a common side.
Further, in an embodiment provided by the present application, the first type of light emitting unit includes 1 red sub-pixel, 2 green sub-pixels, and 1 blue sub-pixel, where the red sub-pixel and the blue sub-pixel are located on a common side, and the green sub-pixel is located on two other vertices. It is to be understood that the OLED is self-luminous by virtue of the light emitting material. Whereas the decay rates of the luminescent materials of different colors are different. Generally, the red light emitting material decays at the slowest of the three colors, and has the longest emission lifetime. On the other hand, green light is the color most sensitive to the human eye among red, green and blue, and thus, the human eye can easily feel it by reducing the number of green sub-pixels. Therefore, the red sub-pixel and the blue sub-pixel are used as the common pixel, so that the influence on the visual perception of human eyes after the pixels are used is avoided, and the light-emitting life of each color sub-pixel is balanced.
Referring to fig. 2 and 3, the first type of light emitting units are disposed in the first region 100. The first type of light-emitting units are distributed in the shape of a pair of triangles sharing a common side. The specific structure or minimal repeating unit of the first type of light-emitting unit is shown in fig. 3 in detail, and includes 1 red sub-pixel, 2 green sub-pixels and 1 blue sub-pixel, where the red sub-pixel and the blue sub-pixel are located on a common side, and the green sub-pixel is located on two other vertexes.
It is to be understood that the red, green and blue sub-pixels are only exemplified by the most common red, green and blue sub-pixels, and that the red, green and blue sub-pixels can be replaced by sub-pixels of other colors.
Further, in an embodiment provided by the present application, the first type light emitting units are distributed in a shape of a pair of triangles sharing a vertex.
Further, in an embodiment provided by the present application, the first type of light emitting unit includes 1 red sub-pixel, 2 green sub-pixels, and 2 blue sub-pixels, the red sub-pixels are located at a common vertex, and the green sub-pixels and the blue sub-pixels are located at two other vertices. In this embodiment, only the red sub-pixel is used as the common pixel, and the emission life of each color sub-pixel can be balanced while reducing the pixel density.
Referring to fig. 4 and 5, the first type light emitting units are disposed in the first region 100. The first type of light emitting units are distributed in the shape of a pair of triangles sharing a vertex. The specific structure or minimal repeating unit of the first type of light-emitting unit is shown in detail in fig. 5, and comprises 1 red sub-pixel, 2 green sub-pixels and 2 blue sub-pixels, wherein the red sub-pixels are located at a common vertex, and the green sub-pixels and the blue sub-pixels are located at two other vertices.
It is to be understood that the red, green and blue sub-pixels are only exemplified by the most common red, green and blue sub-pixels, and that the red, green and blue sub-pixels can be replaced by sub-pixels of other colors.
Referring to fig. 2 and 4, the common red sub-pixel, the blue sub-pixel and the common red sub-pixel are used to realize white balance and provide a gap for light to pass through, so as to meet the requirement of the illumination intensity or the light sensing amount of the photosensitive module under the screen. It is understood that the white balance is realized in a sub-pixel sharing manner while providing a gap for light to pass through, and the technical solution that meets the requirements of the illumination intensity or the light sensing quantity of the photosensitive module under the screen should be understood as not departing from the scope of the substantial protection of the present application.
Further, in an embodiment provided by the present application, the second type of light emitting unit is composed of three sub-pixels, namely a red sub-pixel, a green sub-pixel and a blue sub-pixel.
In the embodiments provided in the present application, the arrangement of the sub-pixels in the second type light-emitting unit may be adaptively adjusted as needed, for example, the first type light-emitting unit shown in fig. 3 is arranged in the first region, and the first type light-emitting unit shown in fig. 5 is arranged in the second region as the second type light-emitting unit. Of course, a common second type of light-emitting unit may also be employed, such as a second type of light-emitting unit having the same number of red, green and blue sub-pixels.
In the embodiments provided in the present application, the sub-Pixels of the first region 100 are reduced through pixel sharing, and the resolution (Pixels Per inc, PPI for short) is not affected, so as to reduce the influence on the display.
Specifically, in the embodiment shown in fig. 2, by arranging the pixels in the first region 100 in a co-edge triangular manner, 2 sub-pixels are reduced for every two light emitting units, so that the light transmittance is increased by at least 50% or more; and the density of the light emitting cells is the same as that of the second region 200, so the resolution thereof is not affected.
Specifically, in the embodiment shown in fig. 4, the sub-pixels of the first type light emitting unit are distributed in a shape of a pair of triangles sharing a vertex. Every two light emitting units are reduced by 1 sub-pixel, so that the light transmittance is increased by more than 20%; and the density of the light emitting cells is the same as that of the second region 200, so the resolution thereof is not affected.
Referring to fig. 6, the present application further provides a display device, including:
a display screen 30; the display screen comprises a first area and a second area, and the density of the solid pixels in the first area is smaller than that in the second area;
an off-screen light sensitive module 31 capable of sensing light impinging through a first area of the display screen.
The display screen 30, the first area 100 and the second area 200 are explained in detail in the foregoing, and are not described in detail here.
In a specific application provided by the present application, the photosensitive module 31 under the screen can be a camera and a photoelectric sensor. The photoelectric sensor may specifically be an infrared sensor for measuring whether the face of a person is close to the display screen.
It is to be understood that the display device herein can be understood as a stand-alone product, such as a mobile phone, a tablet computer, etc. The display device may also include a dc power source, a dc or ac power source interface, memory, a processor, etc.
The dc power source may be a lithium battery in a particular application. The dc power supply or ac power supply interface may be a micro-USB socket in a specific application. The memory may be a flash memory chip. The processor can be a CPU, a singlechip and the like with an operation function.
Further, in an embodiment provided by the present application, the sub-screen photosensitive module is at least one of a photosensor and a camera.
Of course, the under-screen photosensitive module can be arranged as required. The under-screen photosensitive module can be specifically at least one of a photoelectric sensor and a camera.
Further, in one embodiment provided herein, the sub-screen photosensitive module is embedded 4mm to 6mm below the display screen.
It can be understood that, in the display screen, along with the depth of light propagation gradually getting bigger, the illumination intensity is attenuating, when photosensitive module under the screen imbeds the depth of 4mm-6mm under the display screen, both can guarantee the stable equipment of photosensitive module under the screen, can guarantee illumination intensity again within the within range that needs.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A display screen, comprising: a first region and a second region, a density of solid pixels in the first region being less than a density of solid pixels in the second region; a first type of light emitting cells in the first region is different from a second type of light emitting cells of the second region; the density of the first type of light emitting cells in the first region is the same as the density of the second type of light emitting cells in the second region.
2. The display screen of claim 1, wherein the first type of light-emitting units are composed of red, green and blue sub-pixels;
and the number of at least one of the red sub-pixel, the green sub-pixel and the blue sub-pixel is different from the number of the other two sub-pixels.
3. The display screen of claim 2, wherein the first type of light-emitting unit is multiple in number;
the number of the second type light-emitting units is multiple.
4. A display screen according to claim 3, wherein the first type of light-emitting units are distributed in the shape of a pair of triangles sharing a common side.
5. The display screen of claim 4, wherein the first type of light-emitting unit comprises 1 red sub-pixel, 2 green sub-pixels and 1 blue sub-pixel, the red sub-pixel and the blue sub-pixel are located on a common side, and the green sub-pixels are located on the other two vertices.
6. A display screen according to claim 3, wherein the first type of light-emitting units are distributed in the shape of a pair of triangles sharing a common vertex.
7. A display screen as recited in claim 6, wherein the first type of light-emitting units comprises 1 red sub-pixel, 2 green sub-pixels and 2 blue sub-pixels, the red sub-pixels being located at a common vertex and the green and blue sub-pixels being located at two other vertices.
8. A display screen according to any one of claims 1 to 7, wherein the second type of light-emitting unit consists of three sub-pixels, namely a red sub-pixel, a green sub-pixel and a blue sub-pixel.
9. A display device, comprising:
a display screen; the display screen comprises a first area and a second area, and the density of the solid pixels in the first area is smaller than that in the second area; a first type of light emitting cells in the first region is different from a second type of light emitting cells of the second region; the density of the first type of light emitting cells in the first region is the same as the density of the second type of light emitting cells in the second region
An off-screen light sensitive module capable of sensing light impinging through a first area of the display screen.
10. The display device according to claim 9, wherein the off-screen photosensitive module is at least one of a photosensor and a camera.
CN202210025428.6A 2017-09-30 2018-02-09 Display screen and display device Pending CN114400244A (en)

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