Organic light-emitting display panel, method for making the same, and display device
A light-emitting display and organic technology, which is applied in the fields of final product manufacturing, sustainable manufacturing/processing, semiconductor/solid-state device manufacturing, etc. It can solve the problems of difficult identification of alignment marks, color mixing of organic light-emitting display panels, and poor precision of evaporation of light-emitting materials. And other issues
Active Publication Date: 2022-08-09
BOE TECH GRP CO LTD +1
View PDF10 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] The inventors have found that currently, when vacuum evaporation equipment is used to form a light-emitting layer on a substrate to be evaporated, it is difficult to identify the alignment marks on the substrate to be evaporated, and the alignment accuracy of the substrate to be evaporated and the mask is poor, etc. The problem is that the evaporation accuracy of the luminescent material is poor, and the organic light-emitting display panel produced is prone to color mixing and other problems, and the display performance is poor.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.
[0030] In one aspect of the present invention, the present invention provides an organic light emitting display panel. According to an embodiment of the present invention, refer to Figure 1-Figure 3 ( figure 2 and image 3 for the edge figure 1 AA' direction cross-sectional structure diagram), the organic light emitting display panel 1000 includes: a substrate 100, an oxide thin film transistor 200, a low temperature polysilicon thin film transistor 300, a planarization layer 400 a...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an organic light-emitting display panel, a manufacturing method thereof, and a display device. The organic light-emitting display panel includes: a substrate, a display area on the substrate and a non-display area surrounding the display area, and an alignment mark area in the non-display area; a low temperature polysilicon thin film transistor arranged on one side of the substrate and arranged in the display area and oxide thin film transistors; a planarization layer arranged on the side of the low temperature polysilicon thin film transistor and the oxide thin film transistor away from the substrate, the planarization layer has a penetrating alignment mark groove, and the alignment mark groove is on the positive side of the substrate. The projection is located in the alignment mark area; the alignment mark is arranged in the alignment mark groove, and the alignment mark groove also has an oxide layer arranged in the same layer as the active layer of the oxide thin film transistor. The alignment mark and oxide layer contact. Therefore, the alignment mark can be accurately grasped by the vapor deposition equipment, the vapor deposition accuracy is high, and problems such as color mixing are less likely to occur, and the organic light emitting display panel has good usability.
Description
technical field [0001] The present invention relates to the field of display technology, and in particular, to an organic light-emitting display panel, a manufacturing method thereof, and a display device. Background technique [0002] Organic electroluminescence (OLED) display technology is characterized by its self-luminescence, wide viewing angle, high contrast ratio, low power consumption, extremely high response speed, ultra-thin weight, soft display, rollable screen, strong temperature adaptability, and simple manufacturing process. It has become a research hotspot in the field of optoelectronic display technology. Low Temperature Polycrystalline Oxide (LTPO) display panel is a display panel that combines low temperature polycrystalline silicon (LTPS) display panel and oxide (Oxide) display panel. LTPO display panel not only has the high resolution of LTPS display panel , high response speed, high brightness, high aperture ratio and other advantages, but also has the ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01L51/52H01L27/32H01L27/12H01L51/56
CPCH01L27/12H10K59/88H10K50/80H10K71/00Y02P70/50
Inventor 贾立高涛李文强
Owner BOE TECH GRP CO LTD