The present invention relates to a display, and more particularly to a display having a strip-shaped pixel definition layer.
An inkjet printing method can efficiently utilize materials and is suitable for preparing large-area display panels. Referring to
In order to solve the problem of inaccurate pixel printing when preparing a conventional panel, there is an urgent need to develop a novel pixel design that can improve the success rate of printing, which has a larger opening of the pixel definition layer, thus enlarging a printing area, to solve the problems of the current harsh demands for the ink drop accuracy and the drop control system, and increase the success rate of printing.
In view of the above, the present invention provides a display including a novel pixel design, combining partial pixels in a long axis or a short axis direction to form a strip-shaped opening in a pixel definition layer, thereby enlarging a printing area to solve the problems of the current harsh demands for the ink drop accuracy and the drop control system, and increase the success rate of printing.
Accordingly, in accordance with an embodiment of the present invention, the present invention provides a display including a pixel definition layer having a plurality of strip-shaped openings arranged in at least two columns or at least two rows parallel to each other; and a plurality of sub-pixels, wherein at least two adjacent sub-pixels are disposed in each of the strip-shaped openings.
In an embodiment of the invention, the pixel definition layer is a single-layered, a double-layered, or a multilayered structure.
In an embodiment of the invention, the plurality of strip-shaped openings extend in a direction along a short-axis direction of the display.
In an embodiment of the invention, the plurality of strip-shaped openings extend in a direction along a long-axis direction of the display.
In an embodiment of the invention, at least two adjacent sub-pixels disposed in the same strip-shaped opening are sub-pixels adjacent to each other in a same row or sub-pixels adjacent to each other in a same column, and the two adjacent sub-pixels have a same color or different colors. In an embodiment of the invention, the display further includes: a substrate under the pixel definition; a plurality of electrodes located above the substrate, wherein the strip-shaped openings expose the plurality of electrodes.
In an embodiment of the invention, the display further includes: a plurality of thin film transistors disposed between the plurality of electrodes and the substrate.
In an embodiment of the invention, the display further includes a plurality of strip-shaped pixels, wherein one of the plurality of strip pixels is composed of at least two adjacent ones of the plurality of sub-pixels, and the plurality of strip-shaped pixels are arranged in at least two columns parallel to each other.
In an embodiment of the invention, the display further includes a plurality of strip-shaped pixels, wherein one of the plurality of strip-shaped pixels is composed of at least two adjacent ones of the plurality of sub-pixels, and the plurality of strip-shaped pixels are arranged in at least two columns or two rows parallel to each other. In an embodiment of the invention, the pixel definition layer includes an organic material.
In an embodiment of the invention, the organic material includes at least one of: polyimide, acrylic, and phenolic resin.
The invention also provides a method of preparing a display, including:
S10 providing a pixel definition layer, wherein the pixel definition layer has a plurality of strip-shaped openings arranged in at least two columns or at least two rows parallel to each other; and
S20 providing a plurality of sub-pixels, wherein at least two adjacent sub-pixels are disposed in each of the strip-shaped openings.
In an embodiment of the invention, in the step S10, the pixel definition layer is opened by etching to form a plurality of strip-shaped openings exposing a plurality of electrodes under the pixel definition layer; and in the step S20, the plurality of sub-pixels are spray-coated into the plurality of strip-shaped openings by an inkjet printing process.
The invention provides a display including a novel pixel design, combining partial pixels in a long axis or a short axis direction to form a strip-shaped opening in a pixel definition layer, thereby enlarging a printing area to solve the problems of the current harsh demands for the ink drop accuracy and the drop control system, and increase the success rate of printing.
In order to more clearly illustrate the embodiments or the technical solutions of the existing art, the drawings illustrating the embodiments or the existing art will be briefly described below. Obviously, the drawings in the following description merely illustrate some embodiments of the present invention. Other drawings may also be obtained by those skilled in the art according to these figures without paying creative work.
In order to make the above description of the present invention more comprehensible, the preferred embodiments are described below in detail with reference to the accompanying drawings.
The following description of the various embodiments is provided to illustrate the specific embodiments of the invention. Directional terms mentioned in the present invention, such as “vertical”, “horizontal”, “upper”, “bottom”, “pre”, “post”, “left”, “right”, “inside”, “outside”, “side”, etc., only refer to the direction of the additional drawing. Therefore, the directional terminology used is for the purpose of illustration and understanding of the invention. In the figures, structurally similar elements are denoted by the same reference numerals.
In order to solve the problem of inaccurate pixel printing when preparing a conventional panel, there is an urgent need to develop a novel pixel design that can improve the success rate of printing, which has a larger opening of the pixel definition layer, thus enlarging a printing area, to solve the problems of the current harsh demands for the ink drop accuracy and the drop control system, and increase the success rate of printing.
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Although in the above embodiments, only taking the case where the colors of the two adjacent sub-pixels disposed in the same strip-shaped opening are the same as examples, in other embodiments of the present invention, more than two sub-pixels adjacent to each other may be arranged in a same strip-shaped opening; and colors of the sub-pixels adjacent to each other may be the same or different from each other, and are not limited to illustrations of the drawings.
Referring to
Still referring to
Although the pixel definition layer in the above embodiments are exemplified by only a single-layered structure, in other embodiments of the present invention, the pixel definition layer may specifically be a single-layered, a double-layered, or a multilayered structure.
In an embodiment of the invention, the substrate may be a rigid substrate (such as a glass substrate) or a flexible substrate (such as a polyimide (PI) substrate), or may be a substrate made of other materials, and is not limited to the above examples.
In an embodiment of the invention, the pixel definition layer includes an organic material.
In an embodiment of the invention, the organic material includes at least one of: polyimide, acrylic, and phenolic resin.
Referring to
S10 providing a pixel definition layer 320, wherein the pixel definition layer 320 has a plurality of strip-shaped openings 321 arranged in at least two columns parallel to each other or at least two rows parallel to each other; and
S20 providing a plurality of sub-pixels 311, wherein at least two adjacent sub-pixels 311 are disposed in each of the strip-shaped openings 321.
Referring to
Referring to
Accordingly, the present invention provides a display including a novel pixel design, combining partial pixels in a long axis or a short axis direction to form a strip-shaped opening in a pixel definition layer, thereby enlarging a printing area to solve the problems of the current harsh demands for the ink drop accuracy and the drop control system, and increase the success rate of printing.
While the invention has been described by way of example and in terms of the preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. To the contrary, it is intended to cover various modifications and similar arrangements. Therefore, the scope of the appended claims should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements.
Number | Date | Country | Kind |
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201910536654.9 | Jun 2019 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2019/119341 | 11/19/2019 | WO | 00 |