LIGHT TRANSMITTING DISPLAY PANEL, MANUFACTURING METHOD THEREOF AND DISPLAY DEVICE

A light-transmitting display panel, a manufacturing method thereof and a display device. The light-transmitting display panel includes a substrate and a light-emitting device layer disposed on the substrate, the light-emitting device layer including a plurality of pixel units and a shielding layer with a plurality of openings, each of the pixel units disposed correspondingly in one of the openings, and each pixel unit including a transparent light transmission portion and a plurality of sub-pixels emitting light of at least three colors distributed around the transparent light transmission portion.

TECHNICAL FIELD

The present application relates to the technical field of display devices, and particularly to a light-transmitting display panel, a manufacturing method thereof and a display device.

BACKGROUND

Current and future demands have put forward new requirements on a display terminal in vehicle. The display terminal in vehicles will develop towards directions of no influence, what you see is what you get (WYSIWYG) and broad vision, so as to achieve improvements in both the display effect and user's visual range. That is to say, it is necessary to meet high requirements for strong visibility and moderate brightness, and meantime guaranteeing the user's visual range.

Currently, the display terminal in vehicle use a conventional display panel, a transparent display screen or a specific projection display screen. The conventional display panel cannot allow a line of sight to penetrate, resulting in a small visible area and a problem of influences on the user's visual range. The present transparent display screen vacates a transparent area by a way of concentrating pixels, but there are problems of a small effective area of pixels and poor visibility, and thus it is necessary to intensify the brightness to improve an interpretation ability, but the intensified brightness would cause a problem of dazzling people's eyes. For the present projection display screen, there are problems that intense reflection may affect interpretation, display deformation may be caused by an uneven projection surface, it is difficult to read under strong light, and the visibility is relatively poor. Therefore, it is hard for the display effect of any current display terminal to meet the requirements for improvements in both the display effect and the user's visual range.

SUMMARY

The present application provides a light-transmitting display panel, a manufacturing method thereof and a display device. The light-transmitting display panel can achieve improvements in both the display effect of display screen and the user's visual range.

An aspect of the present application provides a light-transmitting display panel, including: a substrate and a light-emitting device layer disposed on the substrate, the light-emitting device layer including a plurality of pixel units and a shielding layer with a plurality of openings, each of the pixel units deposited correspondingly in one of the openings, and each of the pixel units including a transparent light transmission portion and a plurality of sub-pixels emitting light of at least three colors distributed around the transparent light transmission portion.

Another aspect of the present application provides a manufacturing method of a light-transmitting display panel, including: forming a plurality of pixel units on the substrate, each of the pixel units including a transparent light transmission portion and a plurality of sub-pixels emitting light of at least three colors distributed around the transparent light transmission portion; and forming a shielding layer between adjacent pixel units, the shielding layer including openings corresponding to the pixel units one-to-one, the pixel units being located in the openings.

Another aspect of the present application provides a display device including the light-transmitting display panel mentioned above.

In the light-transmitting display panel provided by the present application, the transparent light transmission portion can have the effect of light conduction, and light emitted by the sub-pixels of three colors distributed around the transparent light transmission portion can come into the transparent light transmission portion and can be emitted after mixed through the transparent light transmission portion, and thus the transparent light transmission portion can also have a display function, so that each pixel unit can be changed from a point light source into an area light source, while the brightness of the light-transmitting display panel can be reduced. As a result, the light-transmitting display panel can have stronger visibility, a moderate luminous intensity, to meet reading needs during driving. Adjacent pixel units can be isolated by the shielding layer, so that light of the adjacent pixel units can be prevented from mixing, so as to further improve the display effect. At the same time, the transparent light transmission portion can have the light-transmitting effect, so that the light-transmitting ability of the light-transmitting display panel can be improved, to expand the user's visual range and improve the safety factor of driving. The light-transmitting display panel provided by the present application can have the strong visibility and moderate brightness, while guaranteeing the user's visual range, and thus can achieve the improvements in both the display effect and the user's the visual range.

DETAILED DESCRIPTION

Features and exemplary embodiments of various aspects of the present application will be described in details below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to those skilled in the art that the present application may be practiced without some of these specific details. The following description of embodiments is only intended to provide a better understanding of the application by illustrating examples of the present application.

In order to better understand the present application, the light-transmitting display panel, the manufacturing method thereof and the display device provided by the present application will be described in details below with reference toFIG.1andFIG.2.

As shown inFIG.1andFIG.2, the present application provides a light-transmitting display panel. The light-transmitting display panel includes a substrate1and a light-emitting device layer2disposed on the substrate1. The light-emitting device layer2includes a shielding layer4with a plurality of openings and a plurality of pixel units3. Each of the pixel units3is disposed correspondingly in one of the openings. Each of the pixel units3includes a transparent light transmission portion31and a plurality of sub-pixels32emitting light of at least three colors distributed around the transparent light transmission portion31.

In the light-transmitting display panel provided by the present application, the transparent light transmission portion31can have the effect of light conduction, and light emitted by the sub-pixels32of three colors distributed around the transparent light transmission portion31can come into the transparent light transmission portion31and can be emitted after mixed through the transparent light transmission portion31, and thus the transparent light transmission portion31can also have a display function, so that each pixel unit3can be changed from a point light source into an area light source while the brightness of the light-transmitting display panel can be reduced. As a result, the light-transmitting display panel can have stronger visibility, a moderate luminous intensity, to meet reading needs during driving. Adjacent pixel units3can be isolated by the shielding layer4, so that light of the adjacent pixel units3can be prevented from mixing, so as to further improve the display effect. At the same time, the transparent light transmission portion31can have the light-transmitting effect, so that the light-transmitting ability of the light-transmitting display panel can be improved, to expand the user's visual range and improve the safety factor of driving. The light-transmitting display panel provided by the present application can have the strong visibility and moderate brightness, while guaranteeing the user's visual range, and thus achieve the improvements in both the display effect and the user's visual range.

Each of the pixel units3may include a red sub-pixel321, a green sub-pixel322and a blue sub-pixel323, the red sub-pixel321and the green sub-pixel322may be disposed adjacently to each other, and each of the red sub-pixel321and the green sub-pixel322may be disposed oppositely to the blue sub-pixel323.

An area of each of the red sub-pixel321and the green sub-pixel322may be smaller than an area of the blue sub-pixel323. The red sub-pixel321and the green sub-pixel322are disposed adjacently to each other, each of the red sub-pixel321and the green sub-pixel322is disposed oppositely to the blue sub-pixel323, and opposite sides of the three sub-pixels are long sides of the three sub-pixels, so that light of the sub-pixels of three colors may be fully mixed in the transparent light transmission portion31to improve the display effect.

In each pixel unit, there may be the transparent light transmission portion31between the red sub-pixel321and the green sub-pixel322, and between the blue sub-pixel323and each of the red sub-pixel321and the green sub-pixel322. Light emitted by the red sub-pixel321, the green sub-pixel322and the blue sub-pixel323may enter the transparent light transmission portion31for light mixing. In this application, each pixel unit is changed from a point light source into an area light source, by enlarging the size of each pixel unit and disposing the transparent light transmission portion31between every two sub-pixels for light mixing, light conducting and light transmitting, so that the light uniformity can be improved while the display brightness can be reduced to prevent the dazzling phenomenon and the light-transmitting effect of each pixel unit can be increased, so as to greatly improve the light transmittance of the entire light-transmitting display panel, and thereby expand the user's visual range.

Each pixel unit3may further include a transparent light-conducive layer33located on a side of the pixel unit3away from the substrate1. The transparent light-conductive layer33may further mix the light of the sub-pixels of three colors in the pixel unit3, so that the light emitted by the entire pixel unit3can be evener, and thereby the display effect can be further improved.

The transparent light-conductive layer33is disposed on a pixel unit3, the transparent light transmission portion31is located between every two sub-pixels in the pixel unit3, and the transparent light transmission portion31is surrounded by each sub-pixel. The transparent light transmission layer33and the transparent light transmission portion31can cooperate to fully mix light emitted by each sub-pixel along multiple directions toward the transparent light transmission portion31and toward the transparent light-conductive layer33, so that the display effect of each pixel unit3may be evener and the display effect of the light-transmitting display panel can be better.

A plurality of protrusions34may be formed on a side of the transparent light-conductive layer33away from the substrate1and the protrusions34correspond to the sub-pixels32.

By depositing the protrusions34on the side of the transparent light-conductive layers33away from each sub-pixel32, the light-conductive effect of the transparent light-conductive layers33may be further enhanced, so that the light emitted by each pixel unit3may be evener.

Specifically, in a cross section of each of the protrusions34along a direction perpendicular to the substrate1, a shape of a contour line of a side away from the substrate1may be one of a zigzag line shape, a semicircular shape and a parabolic shape, or any other irregular shape, as long as the light can be further uniformed, and thus the specific shape is not limited in this application.

Specifically, the protrusions34may be manufactured by means of etching or developing, which is not limited in this application.

Both the transparent light transmission portion31and the transparent light-conductive layer33may be made of light-transmitting and color-mixable materials.

The transparent light transmission portion31and the transparent light-conductive layer33may be made of the same materials, so that the light may be prevented from being refracted between the transparent light transmission portion31and the transparent light-conductive layer33, so as to guarantee the display effect; and the materials of the transparent light transmission portion31and the transparent light-conductive layers33may be selected to be transparent polyimides, and the transparent polyimides materials may have good light mixing and light transmitting effects and may be easily obtained.

The shielding layer4and the transparent light-conductive layer33may be disposed in the same layer.

By disposing the shielding layer4and the transparent light-conductive layer33in the same layer, the space between the pixel units3may not occupied, so that the resolution of the light-transmitting display panel can be guaranteed, and at the same time, by only disposing the shielding layer4in the same layer as the transparent light-conductive layer33, a thickness of the shielding layer4can be reduced while the light blocking effect can be satisfied, so as to save the materials of the shielding layer4and achieve a good effect of preventing light from mixing.

The shielding layer4may include a plurality of black matrixes.

Using the plurality of black matrixes, colors of adjacent pixel units3, especially colors of adjacent sub-pixels32of the adjacent pixel units3, can be prevented from mixing. Light emitted by the adjacent pixel units3may be isolated by the plurality of black matrixes, so that each pixel unit3may emit light independently and without interference with each other, and thus the display effect of the entire light-transmitting display panel can be better.

The present application further provides a manufacturing method of the above-mentioned light-transmitting display panel, as shown inFIG.3. The manufacturing method includes:

S101, forming a plurality of pixel units3may be formed on a substrate1, each of the pixel units3including a transparent light transmission portion31and a plurality of sub-pixels32emitting light of at least three colors distributed around the transparent light transmission portion31; and

S102, forming a shielding layer4between adjacent pixel units3, the shielding layer4including openings corresponding to the pixel units one-to-one, and the pixel units being located in the openings.

In the manufacturing method above, the pixel units3are manufactured firstly, and then the shielding layer4is manufactured. The shielding layer4is located between adjacent pixel units3, so as to isolate the adjacent pixel units3to prevent light from mixing. Each of the pixel units3includes the transparent light transmission portion31and the plurality of sub-pixels32emitting light of at least three colors, and each of the sub-pixels32is distributed around the transparent light transmission portion31, so that light emitted by each of the sub-pixels32can be fully mixed in the transparent light transmission portion31, and thereby the point light source of each of the sub-pixels32can be changed into the area light source of the entire pixel unit3to improve the display effect. Additionally, the transparent light transmission portion31can transmit light, so as to increase the user's visual range during driving, so that the light-transmitting display panel will not block the user's line of sight when applied to on-vehicle equipment and thereby can improve the driving safety.

As shown inFIG.4, in the above-mentioned manufacturing method for manufacturing the light-transmitting display panel, the step S101may include:

S1011, forming sub-pixels32emitting light of at least three colors around each light-transmitting area used to form a transparent light transmission portion31on the substrate1; and

S1012, depositing light-transmitting and color-mixable materials to form the transparent light transmission portion31in a light-transmitting area used to form the transparent light transmission portion31and form a transparent light-conductive layer33on a side of the sub-pixels32away from the substrate1.

The transparent light transmission portion31and the transparent light-conductive layer33can be made of the same materials and manufactured in the same process, so as to prevent light, when passing through the transparent light transmission portion31and the transparent light-conductive layer33in sequence, from being refracted at the junction of the transparent light transmission portion31and the transparent light-conductive layer33, to guarantee the visual effect. At the same time, the transparent light transmission portion31and the transparent light-conductive layer33can be manufactured in one process, so as to simplify the manufacturing process and thereby save the manufacturing time. The light-transmitting area may include a transparent layer disposed on the substrate1, and the transparent light transmission portion31may be disposed on the transparent layer. The transparent layer may include film layers such as a blocking layer, an insulation layer, and a flat layer, etc.

The manufacturing method of the light-transmitting display panel of the present application may further include forming a plurality of protrusions34on a side of the transparent light-conductive layers33away from the substrate1correspondingly to the sub-pixels. The protrusions34may be formed by means of etching or developing.

The present application further provides a display device including the light-transmitting display panel mentioned above.

The display device may be used in a vehicle that needs a display device to be built in the vehicle. The display device can have strong visibility and moderate brightness, while guaranteeing the user's visual range, and thus can achieve the improvements in both the display effect and the user's visual range. Therefore, the display device can avoid blocking the user's line-of-sight, while guaranteeing the visual effect of the display device, and thereby the driving safety can be improved. The display device is not be limited to being applied to a vehicle, but can be applied to other occasions according to actual needs, which is not limited in this application.

The above provides only specific implementations of the present application. Those skilled in the art can clearly understand that various modifications and variations can be made to the embodiments of the present application without departing from the spirit and scope of the application. As such, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to incorporate these modifications and variations.