Organic light-emitting display panel and its fingerprint identification method
A light-emitting display and fingerprint recognition technology, which is applied in semiconductor devices, electrical components, circuits, etc., can solve the problems of affecting the thickness of OLED products, increasing costs, and the inability to perform fingerprint recognition on organic light-emitting display panels, so as to achieve both display functions and fingerprints The effect of recognition function
Active Publication Date: 2019-04-23
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD +1
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The main problem in the existing technology is: due to the shielding effect of the cathode layer in the top-driven organic light-emitting display panel, most of its integrated touch solutions can only use the On cell structure
However, this on-cell touch solution affects the thickness of the OLED product, and the on-cell touch structure needs to be laminated with an FPC (flexible circuit board) on the cover plate 6' of the organic light-emitting display panel, which affects the shape of the product and increases the cost. Moreover, although the current organic light-emitting display panel can integrate the function of touch recognition in addition to the display function, it cannot realize the function of fingerprint recognition that cannot be performed on the organic light-emitting display panel.
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
[0045] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted.
[0046] Figure 5 It is a schematic cross-sectional view of the first organic light-emitting display panel of the present invention. Image 6 It is a cross-sectional view of the first organic light emitting display panel of the present invention. Such as Figure 5 with 6As shown, an organic light-emitting display panel of the present invention includes a display area and a non-display area, and further includes: an array su...
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 an organic light-emitting display panel and a fingerprint identification method thereof, wherein the organic light-emitting display panel includes a display area and a non-display area, and further includes: a plurality of thin film transistors arranged in a matrix; an anode layer of at least one anode formed on the thin film transistor On one side, the anode is configured as a common electrode; the organic light-emitting layer is formed on the side of the anode layer away from the thin film transistor; the cathode layer with multiple cathodes is formed on the side of the organic light-emitting layer away from the anode layer, and the cathode passes through The organic light-emitting layer is electrically connected to the corresponding thin film transistor to form a pixel electrode; and the time-sharing driving circuit is electrically connected to the cathode, and the cathode is configured for time-division multiplexing, and is alternately formed as a pixel electrode or a self-capacitance fingerprint identification electrode. Through the time-division multiplexing of the cathode, the present invention has both the display function and the fingerprint identification function under the premise of not increasing the thickness of the organic light-emitting display panel.
Description
technical field [0001] The invention relates to the field of display technology, in particular to an organic light emitting display panel and a fingerprint identification method thereof. Background technique [0002] figure 1 It is a schematic cross-sectional view of an organic light-emitting display panel in the prior art. figure 2 It is a cross-sectional view of an organic light emitting display panel in the prior art. Schematic diagram of the structure of most OLED products at present figure 1 with 2 As shown, an existing organic light-emitting display panel includes: an array substrate 1', an anode layer 3' (including a plurality of anodes 30'), an organic light-emitting layer, a cathode layer 5', a cover plate 6' and a touch electrode 7 '. [0003] Specifically, the array substrate 1' has a plurality of thin-film transistors (Thin-film transistor, TFT for short) 2' arranged in a matrix. An anode layer 3' having a plurality of anodes 30' is formed on the array sub...
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): H01L27/12H01L27/32
CPCH01L27/124H01L27/1255H10K59/40
Inventor 符鞠建吴天一
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD