Patent Application
20160291375
Embodiments of the present disclosure relate to a display substrate and a method for manufacturing the same as well as a liquid crystal display device.
By development in recent decades of years, technique and process of Thin Film Transistor-Liquid Crystal Display (abbreviated as TFT-LCD) technology have been well-developed. By taking the place of Cold Cathode Fluorescent Lamp (abbreviated as CCFL) display, it has become the mainstream product in the display field.
Typically, in mobile display products, it is defined as a bezel from a display region to a border of the display screen. Existence of the bezel reduces visual effect of the whole display screen. The larger the bezel region is, the poorer the visual effect will be. Therefore, visual effect of a narrow bezel or even no bezel become a trend for high quality display screens.
However, as the size of TFT-LCD panel becomes smaller and smaller, in liquid crystal dropping process, liquid crystal molecules may be in contact with uncured seal agent after liquid crystals drop down and before curing the seal agent by ultraviolet light, so that a phenomenon in which the liquid crystals and the seal agent are contaminated by each other and the liquid crystal molecules penetrate the seal agent may occur. Especially for products of narrow bezel, there is a very small distance or even no distance between seal agents of two adjacent substrates to be cut, which easily causes a flow between adjacent seal agents and an uneven distribution of seal agent and thus affects the cutting of panels which further results in failure in separation of display panels and even leakage of liquid crystals.
At least one embodiment of the present disclosure provides a display substrate, comprising at least two substrate regions to be cut which are arranged in an array;
a seal agent which is disposed on a surface of the display substrate and are coated around the substrate regions to be cut; and a barrier wall which is disposed between adjacent substrate regions to be cut and is configured to block the seal agent.
At least one embodiment of the present disclosure provides a method for manufacturing a display substrate, comprising:
forming a barrier wall on a surface of the display substrate which comprises at least two substrate regions to be cut which is arranged in an array, the barrier wall being disposed between adjacent substrate regions to be cut; and
coating a seal agent around the substrate region to be cut.
At least one embodiment of the present disclosure provides a liquid crystal display device comprising a pair of display substrates which are cell-assembled, and at least one of which is the display substrate as described above.
In order to clearly illustrate the technical solutions of the embodiments of the disclosure, the drawings of the embodiments will be briefly described in the following; it is obvious that the drawings described below are only related to some embodiments of the disclosure and thus are not limitative of the disclosure.
In order to make objects, technical details and advantages of the embodiments of the disclosure apparent, the technical solutions of the embodiment will be described in a clearly and fully understandable way in connection with the drawings related to the embodiments of the disclosure. It is obvious that the described embodiments are just a part but not all of the embodiments of the disclosure. Based on the described embodiments herein, those skilled in the art can obtain other embodiment(s), without any inventive work, which should be within the scope of the disclosure.
At least one embodiment of the present disclosure provides a display substrate 1. As illustrated in
The display substrate according to the embodiment of the present disclosure comprises at least two substrate regions to be cut which is arranged in an array. On the surface of the display substrate, a seal agent is coated around the substrate region to be cut. The barrier wall configured to block the seal agent is disposed between adjacent substrate regions to be cut. With such a barrier wall structure, by making a barrier wall configured to block the flowing of uncured seal agent on a cutting line at the middle of two adjacent substrate regions to be cut, a flow of seal agent can be block and thus an uneven distribution of seal agent due to flow of seal agent can be effectively prevented, thereby ensuring the width of seal agent, and significantly obviating failure in separation of display panels and even leakage of liquid crystals.
In one embodiment of the present disclosure, as illustrated in
For example, in the color filter substrate as illustrated in
The display substrate according to one embodiment of the present disclosure is illustrated in
In the display substrate as illustrated in
It should be noted that, in the display substrate as illustrated in
In one embodiment of the present disclosure, the barrier wall 4 can have a length greater than or equal to the length of the substrate region 2 to be cut, and the barrier wall 4 has a width greater than 0.3 μm (micron) and less than 0.5 μm.
With such a barrier wall structure, by disposing a barrier wall configured to block the flowing of uncured seal agent on a cutting line at the middle of two adjacent substrate regions to be cut, a flow of seal agent can be effectively blocked and thus an uneven distribution of seal agent due to flow of seal agent can be prevented, thereby ensuring the width of seal agent, and significantly obviating failure in separation of display panels and even leakage of liquid crystals.
At least one embodiment of the present disclosure provides a method for manufacturing display substrate, as illustrated in
Step 401 of forming a barrier wall on a surface of the display substrate which comprises at least two substrate regions to be cut which is arranged in an array, the barrier walls being disposed between adjacent substrate regions to be cut.
Step 402 of coating a seal agent around the substrate region to be cut.
In the method for manufacturing display substrate according to the embodiment of the present disclosure, the display substrate comprises at least two substrate regions to be cut which is arranged in an array. On the surface of the display substrate, a seal agent is coated around the substrate region to be cut. The barrier wall configured to block the seal agent is disposed between adjacent substrate regions to be cut. With such a barrier wall structure, by disposing a barrier wall configured to block the flow of uncured seal agent on a cutting line at the middle of two adjacent substrate regions to be cut, a flow of seal agent can be effectively blocked and thus an uneven distribution of seal agent due to flow of seal agent can be effectively prevented, thereby ensuring the width of seal agent, and significantly obviating failure in separation of display panels and even leakage of liquid crystals.
As illustrated in
Step 501 of forming a color filter layer on a surface of a transparent substrate.
Step 502 of respectively forming a barrier wall and color filter structures within each substrate region to be cut by performing one patterning process on the color filter layer, the barrier wall being positioned between adjacent substrate regions to be cut.
By simultaneously forming the barrier wall and the color filter structure, the barrier wall can be made without introducing an additional process, thereby significantly reducing production cost of the display substrate having such a structure.
In one embodiment of the present disclosure, as illustrated in
Step 601 of forming a spacer material layer on a surface of the display substrate.
Step 602 of respectively forming a barrier wall and a spacer by performing one patterning process on the spacer material layer, the barrier wall being positioned between adjacent substrate regions to be cut.
By simultaneously forming the barrier wall and the spacer, the barrier wall can be made without introducing an additional process, thereby significantly reducing production cost of the display substrate having such a structure.
In one embodiment of the present disclosure, the barrier wall can have a length greater than or equal to the length of the substrate region to be cut, and the barrier wall has a width greater than 0.3 μm and less than 0.5 μm.
At least one embodiment of the present disclosure provides a liquid crystal display device comprising a pair of display substrates which are cell-assembled (that is, the two display substrates are assembled together via a seal agent to form a liquid crystal cell), wherein at least one display substrate is the display substrate as described above.
The structure of the display substrate has been described in detail in the above-described embodiments, and will not be elaborated here.
The liquid crystal display device can be any product or component with display function such as a cell phone, a tablet PC, a television, a display, a laptop, a digital photo frame, a navigator and etc.
The liquid crystal display device according to the embodiments of the present disclosure comprises a pair of display substrates which are cell-assembled. At least one display substrate comprises at least two substrate regions to be cut which is arranged in an array. On the surface of the display substrate, a seal agent is coated around the substrate region to be cut. The barrier wall configured to block the seal agent is disposed between adjacent substrate regions to be cut. With such a barrier wall structure, by making a barrier wall configured to block the flow of uncured seal agent on a cutting line at the middle of two adjacent substrate regions to be cut, a flow of seal agent can be blocked and thus an uneven distribution of seal agent due to flow of seal agent can be effectively prevented, thereby ensuring the width of seal agent, and significantly obviating failure in separation of display panels and even leakage of liquid crystals.
The foregoing are merely exemplary embodiments of the disclosure, but are not used to limit the protection scope of the disclosure. The protection scope of the disclosure shall be defined by the attached claims.
The present disclosure claims priority of Chinese Patent Application No. 201510151957.0 filed on Apr. 1, 2015, the disclosure of which is hereby entirely incorporated by reference as a part of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201510151957.0 | Apr 2015 | CN | national |
