阅读说明：本技术 显示装置 (Display device ) 是由 杨汉宁 胡磊 于 2019-08-23 设计创作，主要内容包括：一种显示装置,包括TFT阵列基板、OLED发光显示层、偏光片、保护盖板、以及摄像头模组,所述偏光片上设置有一通孔,摄像头模组设置于TFT阵列基板背离OLED发光显示层的一侧且与通孔对应设置,保护盖板靠近所述OLED发光显示层的一侧设置有油墨层且与通孔能够完全重叠,且油墨层仅能够透过红、绿、蓝光。通过将屏下摄像头上方对应区域的偏光片去除,采用允许特定波长光透过的黑色油墨代替,能够提高显示装置的透过率,进而使得屏下摄像头能够高清成像,进而有利于全面屏的发展。(The utility model provides a display device, includes TFT array substrate, OLED luminous display layer, polaroid, protection apron and camera module, be provided with a through-hole on the polaroid, camera module sets up in one side that TFT array substrate deviates from OLED luminous display layer and corresponds the setting with the through-hole, and the protection apron is close to one side of OLED luminous display layer is provided with the printing ink layer and can overlaps completely with the through-hole, and the printing ink layer only can see through red, green, blue light. The polaroid in the corresponding area above the screen lower camera is removed, black printing ink allowing specific wavelength light to penetrate is adopted for replacement, the transmittance of the display device can be improved, and then the screen lower camera can form high-definition images, and further development of a full screen is facilitated.)

1. A display device, comprising:

a TFT array substrate;

the OLED light-emitting display layer is arranged on the TFT array substrate;

the polaroid is arranged on the OLED light-emitting display layer, and a through hole is formed in the polaroid;

the protective cover plate is arranged on the polarizer; and

the camera module is arranged on one side of the TFT array substrate, which is far away from the OLED light-emitting display layer, and is arranged corresponding to the through hole in the thickness direction of the TFT array substrate; wherein the content of the first and second substances,

one side of the protection cover plate close to the OLED light-emitting display layer is provided with an ink layer, the ink layer is in orthographic projection on the TFT array substrate is coincided with the through hole in orthographic projection on the TFT array substrate, and the ink layer can only penetrate through red light, green light and blue light.

2. The display device according to claim 1, further comprising an adhesive layer that adheres the tube protective cover plate and the polarizer.

3. The display device according to claim 2, wherein the ink layer is disposed on a surface of the protective cover plate adjacent to the OLED light-emitting display layer.

4. The display device according to claim 3, wherein the adhesive layer fills the through hole.

5. The display device according to claim 3, wherein the adhesive layer is disposed between an ink layer and the polarizer.

6. The display device according to claim 4, wherein the adhesive layer has a thickness of 50 to 200 μm.

7. The display device according to claim 1, wherein an orthographic projection of the camera on the TFT array substrate is within an orthographic projection of the ink layer on the TFT array substrate.

8. The display device according to claim 1, wherein the thickness of the ink layer is 10 to 100 μm.

9. The display device according to claim 1, wherein the ink layer is a black ink layer.

10. The display device of claim 9, wherein the ink layer has a transmission width in a range of 3 to 50 nm for each wavelength of the red, green, and blue light.

Technical Field

The invention relates to the technical field of display, in particular to a display device.

Background

With the development of science and technology and the higher and higher requirements of people on various aspects of performance of products, the comprehensive screen becomes an expectable technology of the smart phone. In order to realize the ultra-high screen occupation ratio, the front camera needs to be placed below the display screen, and the installation of the front camera is generally realized by adopting a punching mode at present, but the comprehensive screen technology with higher screen occupation ratio still cannot be realized. When the front camera is arranged below the display screen, the camera below the display screen cannot realize clear imaging due to the low transmittance of the display screen to visible light. At present, the transmittance of a polarizer for an OLED is usually 40% -50%, so that the polarizer is one of important factors for reducing the transmittance of a screen, and further a front-facing camera cannot obtain clear images, and the application of the camera under the screen is limited.

Disclosure of Invention

The invention provides a display device, which aims to solve the technical problem that in the existing display device, a camera below a display screen cannot clearly image due to the fact that a polarizer can reduce the transmittance of the screen, and therefore display is influenced.

In order to solve the above problems, the technical scheme provided by the invention is as follows:

the invention provides a display device, which comprises a Thin Film Transistor (TFT) array substrate, an organic light emitting display layer arranged on the TFT array substrate, a polarizer arranged on the OLED light emitting display layer, a protective cover plate arranged on the polarizer, and a camera module; the camera module is arranged on one side of the TFT array substrate, which is far away from the OLED light-emitting display layer, and is arranged corresponding to the through hole in the thickness direction of the TFT array substrate; the protection cover plate is provided with an OLED light-emitting display layer, the side, close to the OLED light-emitting display layer, of the protection cover plate is provided with an ink layer, the ink layer is located orthographic projection on the TFT array substrate is coincided with the through hole in orthographic projection on the TFT array substrate, and the ink layer can only penetrate through red light, green light and blue light.

In at least one embodiment of the present invention, the display device further includes an adhesive layer that adheres the tube protective cover plate and the polarizer.

In at least one embodiment of the present invention, the ink layer is disposed on a surface of the protective cover plate near the OLED light emitting display layer.

In at least one embodiment of the present invention, the adhesive layer fills the via.

In at least one embodiment of the present invention, the adhesive layer is disposed between the ink layer and the polarizer.

In at least one embodiment of the present invention, the thickness of the adhesive layer is 50 to 200 μm.

In at least one embodiment of the present invention, an orthographic projection of the ink layer on the TFT array substrate coincides with an orthographic projection of the camera on the TFT array substrate.

In at least one embodiment of the present invention, the thickness of the ink layer is 10 to 100 micrometers.

In at least one embodiment of the present invention, the ink layer is a black ink layer.

In at least one embodiment of the present invention, the transmission width of the ink layer to each wavelength of the red, green and blue light is 3 to 50 nm.

The invention has the beneficial effects that: the polaroid in the corresponding area above the screen lower camera is removed, black printing ink allowing specific wavelength light to penetrate is adopted for replacement, the transmittance of the display device can be improved, and then the screen lower camera can form high-definition images, and further development of a full screen is facilitated.

Drawings

In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a polarizer according to an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of an ink layer according to an embodiment of the invention;

fig. 4 is a schematic structural diagram of a display device according to another embodiment of the invention.

Detailed Description

The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.

The invention aims at the technical problem that the prior display device has the defects that the camera below the display screen cannot clearly image due to the fact that the transmittance of the screen is reduced by the polarizer, and the display is influenced, and the embodiment can solve the defects.

As shown in fig. 1, the present embodiment provides a display device 100, which includes a TFT (Thin Film Transistor) array substrate 20, an OLED light-emitting display layer 30, a polarizer 50, an ink layer 70, a protective cover plate 80, and a camera module 90.

The OLED light-emitting display layer 30 is arranged on the TFT array substrate 20, the polarizer 50 is arranged on the light-emitting side of the OLED light-emitting display layer 30, in the embodiment, the polarizer 50 is arranged on the OLED light-emitting display layer 30, the camera module 90 is arranged on one side, deviating from the OLED light-emitting display layer 30, of the TFT array substrate 20, namely, the lower side of the TFT array substrate 20 is arranged to be used for achieving the technology of a camera under a screen, and further the screen occupation ratio of a display screen is improved.

Because the transmittance of the polarizer 50 is not high, the transmittance of the display screen is affected, so that the camera 91 in the camera module 90 arranged below the TFT array substrate 20 cannot clearly image, and the application of the camera under the screen is limited. The embodiment of the present invention is improved to this end, as shown in fig. 2, a portion of the polarizer 50 corresponding to the camera 91 is hollowed to form a through hole 51, and an ink layer 70 only allowing red, green, and blue light to transmit is disposed right above the through hole 51, and the ink layer 70 can absorb all light except the red, green, and blue light, so that the polarizer can be replaced, the transmittance of the display screen is not affected, and the camera can clearly image.

Specifically, the camera module 90 and the through hole 51 are disposed in the thickness direction of the TFT array substrate 20, and the orthographic projection of the ink layer 70 on the TFT array substrate 20 coincides with the orthographic projection of the through hole 51 on the TFT array substrate 20, that is, the ink layer 70 and the through hole 51 can completely overlap.

Since the protective cover 80 functions to protect the internal display device, the protective cover 80 is disposed on the polarizer 50, and since the two are separate structures, the display device should further include an adhesive layer 60 functioning to adhere the protective cover 80 and the polarizer 50, that is, the adhesive layer 60 is disposed between the protective cover 80 and the polarizer 50.

The ink layer 70 is disposed on one side of the protection cover plate 80 close to the OLED light-emitting display layer 30, because the ink has a flowing characteristic, the ink layer 70 needs to be prepared on a substrate surface, and the part of the polarizer 50 corresponding to the ink layer 70 is the through hole 51, so that the ink layer 70 is not easily prepared on the surface of the polarizer 50, and the preparation of the ink layer 70 on the protection cover plate 80 is a better choice.

Specifically, ink is coated on the surface area of the protective cover plate 80 corresponding to the through hole 51 to form the ink layer 70, then the adhesive layer 60 is prepared on the surface of the protective cover plate 80 on which the ink layer 70 is formed, and then the ink layer 70 is attached to the polarizer 50 by using the adhesive layer 60.

In this embodiment, the Adhesive layer 60 is an OCA (optical Clear Adhesive), the ink layer 70 is prepared on the surface of the protective cover 80, the ink layer 70 corresponds to a layer of protrusion, when the protective cover 80 and the polarizer 50 are adhered by using the OCA Adhesive, the protrusion will cause the OCA Adhesive to fill the area where the through hole 51 of the polarizer 50 is located, so that the thickness of the OCA Adhesive is at least equal to the thickness of the polarizer, so as to ensure that the Adhesive layer 60 can fill the through hole 51, and the thickness of the Adhesive layer is 50 to 200 micrometers.

In order to enable the camera 91 to clearly form an image, light cannot be blocked, and therefore, the orthographic projection of the camera 91 on the TFT array substrate 20 needs to be located within the orthographic projection of the ink layer 70 on the TFT array substrate, so that the camera 91 obtains good light.

The camera module 90 filters the object to be measured mainly through the red, green and blue pixel points above the sensor to finally obtain a color image, and the red, green and blue pixel points above the sensor have high transmittance to the red, green and blue light with specific wavelength, so that the display screen can realize clear imaging of the camera below the display screen only by having high transmittance to the light with the three wavelengths. The ink layer 70 in the embodiment of the present invention is a black ink layer, and as for the black ink, when the black ink has high transmittance for monochromatic light in red, green, and blue light bands and has strong absorption for light in other visible light bands, the color of the black ink is still black.

Further, the sharpening of the color of the pixel point of the display screen is achieved by adjusting the light transmission width of the black ink to each wavelength, and therefore the setting range of the transmission width of the ink layer 70 to each wavelength of the red light, the green light and the blue light is 3-50 nanometers.

Because the high permeability to red, green and blue light needs to be guaranteed for the ink layer 70, the thickness of the ink layer 70 is not too thick, the thickness of the ink layer 70 is controlled within the range of 10-100 micrometers, and the size of the ink layer 70 is the same as that of the camera 91 during preparation.

As shown in fig. 3, since the non-display area of the display screen needs to be light-shielded, another black ink that is completely light-shielded may be used for the light-shielding treatment, and thus, when the light-shielding layer 70 'is formed around the display screen, the ink layer 70 and the light-shielding layer 70' may be completed in the channel coating process.

When the receiving wavelength of the R/G/B pixel of the camera 91 is the same as the emitting wavelength of the R/G/B pixel of the display screen, the ink layer only needs to have high transmittance for three optical wavelengths corresponding to the R/G/B pixel, and when the receiving wavelength of the R/G/B pixel of the camera 91 is different from the emitting wavelength of the R/G/B pixel of the display screen, the ink layer only needs to have high transmittance for six optical wavelengths corresponding to the R/G/B pixel.

When external light passes through the ink layer 70 below the protective cover plate 80, only light with a specific wavelength is transmitted and irradiated into the camera 91 under the screen, and other light which does not influence the imaging of the camera is absorbed by the ink layer 70; when the display screen emits light, only light with a specific wavelength can be emitted to the outside through the black ink layer 70 to form a display picture. Sharpening the color of the pixels of the display screen can be achieved by adjusting the width of light transmission of the black ink for each wavelength.

The TFT array substrate 20 includes a substrate and a TFT device disposed on the substrate, a protective layer 10 is further disposed on one side of the flexible substrate away from the TFT device to protect the TFT device on the substrate, and the camera module 90 is disposed below the protective layer 10.

As shown in fig. 4, in other embodiments, the display device 100 may further include a touch functional layer 40 ', where the touch functional layer 40 ' may be an on-cell structure, and is specifically formed between the OLED light-emitting display layer 30 and the polarizer 50, and the specific structure of the touch functional layer 40 ' is not described herein again, and reference may be made to the prior art. The OLED light emitting display layer 30 may be covered with an encapsulation layer 40 having a moisture isolation function, and the touch function layer 40' may be disposed between the encapsulation layer 40 and the polarizer 50.

Has the advantages that: the polaroid in the corresponding area above the screen lower camera is removed, black printing ink allowing specific wavelength light to penetrate is adopted for replacement, the transmittance of the display device can be improved, and then the screen lower camera can form high-definition images, and further development of a full screen is facilitated.

In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.