Driving backboard and light-emitting substrate
A technology for driving backplanes and substrates, used in semiconductor devices, electrical components, circuits, etc., can solve problems such as low driving current, and achieve the effects of increasing driving current, increasing driving current, and reducing impedance
Active Publication Date: 2021-01-12
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
View PDF6 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] This application provides a driving backplane and a light-emitting substrate to solve the technical problem of low driving current passing through the drain wiring in the prior art MiniLED driving backplane
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
[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.
[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, It is not intended to indicate or imply that the device or element referred to must have a particular orientation, be constr...
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 provides a driving backboard and a light-emitting substrate, the driving backboard is used for driving an external LED lamp to emit light, and the driving backboard comprises a substrate, a plurality of driving thin film transistors, a plurality of first drain electrode wires and a plurality of second drain electrode wires; each driving thin film transistor comprises a grid electrode, a source electrode and a drain electrode; the first drain electrode wires are arranged on the substrate, and the access ends of the first drain electrode wires are electrically connected with the drain electrodes of the corresponding driving thin film transistors; the second drain electrode wires are arranged on the substrate, the second drain electrode wires and the first drain electrode wiresare arranged on different layers, the access ends of the second drain electrode wires are electrically connected to the output ends of the corresponding first drain electrode wires, and the output ends of the second drain electrode wires are electrically connected to the corresponding external LED lamps. The orthographic projection of the second drain wire on the plane where the substrate is located is at least partially overlapped with the orthographic projection of the first drain wire on the plane where the substrate is located. The driving performance of the driving backboard is improved.
Description
technical field [0001] The present application relates to the field of display technology, in particular to a driving backplane and a light emitting substrate. Background technique [0002] The Mini LED (Mini Light Emitting Diode, Mini Light Emitting Diode) backlight module has attracted more and more attention due to its advantages of high brightness, ultra-narrow frame, special shape, and the ability to realize partial partition design. [0003] At present, an active driving method is usually used to drive the Mini LED to emit light, that is, to drive the Mini LED to emit light by designing a driving device such as a thin film transistor on the substrate, so as to reduce the number of driving chips used and reduce the driving cost. [0004] In the prior art MiniLED driving backplane, when the driving current is transmitted to the external MiniLED lamp through the thin film transistor, due to the existence of the drain wire electrically connecting the output terminal of 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 IPC IPC(8): H01L27/12H01L27/15
CPCH01L27/124H01L27/156
Inventor 许勇温旺林
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD