Display panel motherboard, display panel and method for producing the same
A technology for display panels and motherboards, applied in the direction of identification devices, instruments, etc., can solve problems such as the influence of wires, affect the luminous performance of display devices, and reduce product yields, so as to achieve the effect of ensuring performance and product yields
Active Publication Date: 2022-05-13
KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT +1
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Problems solved by technology
The stretchable display device uses a stretchable material as a substrate. In the preparation process, an adhesive layer is first prepared on the support substrate. The material of the adhesive layer can be PI (Polyimide, polyimide). Prepare stretchable wires and bind light-emitting units, then form a stretchable substrate on the side opposite to the support base, and then peel off from the support base to realize the transfer of each display device of the stretchable display device. During the transfer process In the process, laser lift-off and mechanical lift-off are required. However, during the lift-off process, it is very easy to affect the wires, which in turn affects the luminous performance of the display device, resulting in a decrease in product yield.
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[0021] Features and exemplary embodiments of various aspects of the invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. In the drawings and the following description, at least some well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the present invention; and, for clarity, the dimensions of some structures may have been exaggerated. Furthermore, the features, structures, or characteristics described hereinafter may be combined in any suitable manner in one or more embodiments.
[0022] The orient...
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The invention discloses a display panel motherboard, a display panel and a preparation method of the display panel. The display panel motherboard includes a support substrate, a sacrificial layer and a display panel that are sequentially stacked in the thickness direction of the display panel motherboard. The display panel includes: a device layer, including a plurality of pixel islands and a plurality of wires connecting the pixel islands; a protective layer , which is stacked with the device layer in the thickness direction, and is located between the sacrificial layer and the device layer. The protective layer includes a plurality of carrier tapes and a first hollow area located between adjacent carrier tapes. The wires correspond to the carrier tapes according to a predetermined distribution method. distribution, the orthographic projection of the wire in the thickness direction is located within the carrier tape. In the display panel motherboard disclosed in the present invention, a protective layer is provided on the side of the device layer close to the sacrificial layer. During the peeling process of the display panel and the supporting substrate, the protective layer protects the device layer, thereby ensuring the performance of the device layer and the product. Yield.
Description
technical field [0001] The invention belongs to the field of display technology, and in particular relates to a display panel motherboard, a display panel and a preparation method of the display panel. Background technique [0002] Stretchable display devices have the advantages of small size, portability, flexibility and extensibility, and are widely used in display products. The stretchable display device uses a stretchable material as a substrate. In the preparation process, an adhesive layer is first prepared on the support substrate. The material of the adhesive layer can be PI (Polyimide, polyimide). Prepare stretchable wires and bind light-emitting units, then form a stretchable substrate on the side opposite to the support base, and then peel off from the support base to realize the transfer of each display device of the stretchable display device. During the transfer process In the process, laser lift-off and mechanical lift-off are required. However, during the li...
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IPC IPC(8): G09F9/30
CPCG09F9/301
Inventor 贾松霖
Owner KUNSHAN NEW FLAT PANEL DISPLAY TECH CENT