Patent Application
20210018806
This application claims priority to Chinese Patent Application No. CN201811476658.4, filed with the Chinese Patent Office on Dec. 5, 2018 and entitled “DISPLAY PANEL, MANUFACTURING METHOD THEREOF, AND DISPLAY DEVICE”, which is incorporated herein by reference in its entirety.
The present application relates to the field of display technologies, and in particular, to a display panel, a manufacturing method thereof, and a display device.
The statements herein merely provide background information related to the present disclosure and do not necessarily constitute the related art.
Due to axial light transmission characteristics of liquid crystal molecules of a liquid crystal display (LCD), LCDs have a new solution to overcome technical problems of a large visual angle color cast. At present, one wide visual angle mainstream technology is a fringe field switching (FFS), an in-plane-switching (IPS), and a multi-domain vertical alignment (MVA). MVA techniques are more early used wide visual angle liquid crystal displays. The MVA techniques make use of a protrusion to make the liquid crystal molecules deflect a certain angle, instead of an erect static state of the conventional panel, when the liquid crystal molecules are static. Thus, when the voltage is applied to change liquid crystal molecules as a horizontal state to passes through backlight, the penetrated speed of the backlight is faster, further significantly shortening display time.
When a transmission display panel is designed using an MVA mode, in order to enhance a visual range of image display, the liquid crystal molecules mostly form a multiple region arrangement. However, this multiple region arrangement results in not high penetration rate when the display panel is in a penetrating state, a background image appears whiting or color shift at a large viewing angle, further affecting the image quality.
An objective of this application is to provide a display panel, a manufacturing method thereof and a display device, to improve color shift at a large viewing angle.
This application provides a display panel, comprising a first substrate, a second substrate parallel arranged to the first substrate, a pixel unit formed between the first substrate and the second substrate. The pixel unit comprising at least two kinds of transparent areas and a plurality of liquid crystal materials injected into the transparent areas, wherein a penetration rate of each of the liquid crystal materials is injected into the transparent areas are different. Optionally, the display panel further comprising scanning line, data lines, and active switches. The data lines are connected with the scanning line and the active switches. The scanning line and the data lines are perpendicularly disposed. A first transparent area, a second transparent area, and a third transparent area are disposed on a same side of the scanning line.
Optionally, when a distance between three kinds of transparent areas and the active switches is greater, the penetration rate is less.
Optionally, area of the first transparent area, area of the second transparent area, and area of the third transparent area are same.
Optionally, the display panel further comprising scanning line, data lines, and active switches. The data lines are connected with the scanning line and the active switches. The scanning line and the data lines are perpendicularly disposed.
Optionally, the second transparent area are disposed on a first side of the scanning line. The first transparent area and third transparent area are disposed on a second side of the scanning line.
Optionally, three kinds of the transparent areas are divided by specific area ratio. An area ratio between the first transparent area and the third transparent area is one to one. The area ratio between the second transparent area and a sum of the first transparent area and the third transparent area is three to two.
Optionally, a penetration rate of the first liquid crystal material, the second liquid crystal material, and the third liquid crystal material increase gradually. Correspondingly, a penetration rate of the first transparent area, the second transparent area, and the third transparent area increases in sequence.
Optionally, a first sub-pixel is a blue sub-pixel. A second sub-pixel is a red sub-pixel. A third sub-pixel is a green sub-pixel.
Optionally, the liquid crystal materials comprise benzoate acid ester materials.
This application further disclosure a manufacturing method of a display panel, steps comprising:
forming a plurality of pixel units between a first substrate and a second substrate;
diving each of the pixel units into at least two kinds of transparent areas;
injecting liquid crystal materials with different penetration rates into each of the transparent areas.
Optionally, a step of inject liquid crystal materials with different penetration rates into each of the transparent areas comprises:
injecting the liquid crystal material into the transparent areas by a spray method.
Optionally, the liquid crystal material comprises the first liquid crystal material, the second liquid crystal material, and the third liquid crystal material.
The transparent areas comprise a first transparent area, a second transparent area, and a third transparent area.
The first liquid crystal material is injected into the first transparent area. The second liquid crystal material is injected into the second transparent area. The third liquid crystal material is injected into the third transparent area.
This application further disclosure the display device, comprising the display panel and a backlight module.
The display panel comprises the first substrate, the second substrate parallel arranged to the first substrate, the pixel unit formed between the first substrate and the second substrate. The pixel unit comprising at least two kinds of transparent areas and multiple liquid crystal material injected into in the transparent areas. A penetration rate of each liquid crystal materials is injected into in the transparent areas are different. The display panel and the display device can enhance a pixel penetration rate and effectively suppress a grayscale whiting or appear color shift at a large viewing angle.
Optionally, liquid crystal materials comprise the first liquid crystal material, the second liquid crystal material, and the third liquid crystal material. The transparent areas comprise the first transparent area, the second transparent area, and the third transparent area. The first liquid crystal material is injected into the first transparent area. The second liquid crystal material is injected into the second transparent area. The third liquid crystal material is injected into the third transparent area.
Optionally, a penetration rate of the first liquid crystal material, the second liquid crystal material, and the third liquid crystal material increase gradually. Correspondingly, a penetration rate of the first transparent area, the second transparent area, and the third transparent area increases in sequence .
Optionally, the display panel further comprises scanning line, data lines, and active switches. The data lines are connected with the scanning line and the active switches. The scanning line and the data lines are perpendicularly disposed. The second transparent areas are disposed on a first side of the scanning line. The first transparent area and third transparent area are disposed on a second side of the scanning line.
Compared with a commonly used Mutidomain Vertical Alignment (MVA) technology, the present application utilizes liquid crystal materials with different penetration rate in different transparent areas respectively to divide a plurality of transparent areas, thereby improving color shift. The multi-scope compensation effect under a large viewing angle, so that, the display panel and the display device can enhance a pixel penetration rate and effectively suppress a grayscale whiting or appear color shift at a large viewing angle. Compared with the method of voltage division, the manufacturing process and the driving method are simple.
The accompanying drawings included are used for helping understand the embodiments of this application, constitute a part of this specification, illustrate examples of the embodiments of this application and, together with the description, serve to explain the principles of this application. Obviously, the accompanying drawings in the following descriptions are merely some embodiments of this application. A person of ordinary skill in the art may further obtain other accompanying drawings according to these accompanying drawings without creative efforts. In the accompanying drawings:
Specific structures and functional details disclosed herein are merely representative, and are intended to describe the objectives of the exemplary embodiments of this application. However, this application may be specifically implemented in many alternative forms, and should not be construed as being limited to the embodiments set forth herein.
In the description of this application, the terms such as “first” and “second” are used only for the purpose of description, and should not be understood as indicating or implying the relative importance or implicitly specifying the number of the indicated technical features. Therefore, a feature defined by “first” or “second” can explicitly or implicitly include one or more of said features. In the description of this application, unless otherwise stated, “a plurality of” means two or more than two. In addition, the terms “include”, “comprise” and any variant thereof are intended to cover non-exclusive inclusion.
In addition, the terms such as “center”, “transverse”, “on”, “below”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, and “outside” are based on orientation or position relationships shown in the accompanying drawings, and are used only for ease and brevity of illustration and description, rather than indicating or implying that the mentioned apparatus or component must have a particular orientation or must be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting of this application.
In addition, it should be noted that unless otherwise explicitly specified or defined, the terms such as “mount”, “install”, “connect”, and “connection” should be understood in a broad sense. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; or the connection may be a mechanical connection or an electrical connection; or the connection may be a direct connection, an indirect connection through an intermediary, or internal communication between two components. Persons of ordinary skill in the art may understand the specific meanings of the foregoing terms in this application according to specific situations.
This application is described below with reference to the accompanying drawings and examples of embodiments.
As shown in
The application utilizes liquid crystal materials 150 with different penetration rate in different transparent areas 140 respectively to divide a plurality of light and dark transparent area, thereby improving color shift. The multi-scope compensation effect under a large viewing angle. It is equivalent to divide a plurality areas instep the traditional method of voltage division. Therefore, reducing manufacturing processes and saving dissipation voltage when voltage driving the liquid crystal.
In the first embodiment, the liquid crystal materials 150 include a first liquid crystal material 151, a second liquid crystal material 152, and a third liquid crystal material 153. The transparent areas 140 includes a first transparent area 141, a second transparent area 142, and a third transparent area 143. The first liquid crystal material 151 is injected into the first transparent area 141. The second liquid crystal material 152 is injected into the second transparent area 142. The third liquid crystal material 153 is injected into the third transparent area 143. The first transparent area 141, the second transparent area 142, and the third transparent area 143 are respectively a main transparent area, sub transparent area and sub-second transparent area. However, it not any limit to the transparent areas. The main transparent area further as the second transparent area 142 or third transparent area 143.
As shown in
As shown in
In the application, the transparent areas 140 are on the same side. Since the scanning line 160 are connected with the active switches 180, when a voltage is applied to drive liquid crystal molecules, the penetration speed of the backlight is faster, therefore, the display time is greatly shortened.
In one or more embodiments, a distance between three kinds of transparent areas 140 and the active switches 180 is greater, the penetration rate is less.
In the application, the distance of transparent areas 140 and the active switches 180 is greater, the penetration rate is less. The active switches 180 is less influenced to a public voltage since the high penetration speed needs more voltage.
As shown in
In the application, an aperture ratio is the ratio of an area effective transparent areas of the pixel to total area of the pixel. The area of the three transparent areas 140 are the same and the aperture ratio does not affect each other. The grayscale whitening can effectively suppress when the large viewing angle.
As shown in
In the application, the second transparent area 142 is disposed on a first side 161 of the scanning line 160. The first transparent area 141 and third transparent area 143 are disposed on a second side 162 of the scanning line 160. A multi areas are driven by the different scanning line respectively. Since different areas require different voltage, different scanning line 160 and the data lines 170 are used respectively.
As shown in
In this application, divide up a pixel transparent area by the ratio mention above, to generate multi-domain areas and meet the multi areas divide. Therefore, when the transparent panel in the penetrate mode, reducing diffraction to increase the pixel penetration rate and improving color shift in the background image.
As shown in
The display panel further includes scanning line 160, data lines 170, and active switches 180. The data lines 170 are connected with the scanning line 160 and the active switches 180. The scanning line 160 and the data lines 170 are perpendicularly disposed.
The second transparent area are disposed on a 161 of the scanning line 160. The first transparent area and third transparent area are disposed on a of the scanning line 160.
Three kinds of the transparent areas 140 are divided by specific area ratio. An area ratio between the first transparent area 141 and the third transparent area 143 is one to one. The area ratio between the second transparent area 142 and a sum of the first transparent area 141 and the third transparent area 143 is three to two.
In one or more embodiments, the liquid crystal materials comprise benzoate acid ester materials.
In the application, the two benzene rings in the central portion of such a liquid crystal compound are connected by an ester. The liquid crystal has good stability and high viscosity. A biphenyl, a terphenyl, a phenyl cyclohexane and a biphenylene ring are also can be the liquid crystal materials of the present application which depending on the panel condition.
As shown in
S71: forming a plurality of pixel units between a first substrate and a second substrate;
S72: diving each of the pixel units into at least two kinds of transparent areas;
S73: injecting liquid crystal materials with different penetration rates into each of the transparent areas.
In one or more embodiments, a step of inject liquid crystal materials having different penetration rates into each of the transparent areas including:
injecting the liquid crystal material into the transparent areas through a spray method.
In the application, a traditional technology of adjust the liquid crystal to inject and other technology processes do not change. Since the three multi areas are required to inject different liquid crystal materials 140, an ink jet method is more easily achieved than the traditional method, which can improve the color casting in the basis and inject the liquid crystal quickly to enhance the productivity.
The display panel 100 of manufacturing method of the present embodiment is applied to any of the above applications.
As shown in
It should be noted that the limitation of each step involved in the present disclosure is not determined to limit the sequence of steps without affecting the implementation of the specific solution. Steps written in the foregoing can be executed first, or later, or even simultaneously as long as the specific solutions can be implemented, which should be considered as the scope of the present disclosure.
The present disclosure is able to be applied on various display panels, such as a Twisted-Nematic (TN) type display panel, In-Plane Switching (IPS) type display panel, a Vertical-Alignment (VA) type display panel, and Multi-domain Vertical Alignment (MVA) type display panel. Of course, the display panel can be other types of display panels which is able to be applied, such as an Organic Light-Emitting Diode (OLED) display panel.
The above content is a further detailed description of the present disclosure in conjunction with the specific embodiments, and the specific implementation of the present disclosure is not limited to the description. It will be apparent to those skilled in the art that a number of simple deductions or substitutions may be made without departing from the conception of the present disclosure, which should be considered as being within the scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201811476658.4 | Dec 2018 | CN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2018/121019 | 12/14/2018 | WO | 00 |
