A display panel and electronic device
A technology of display panel and photosensitive surface, applied in circuits, electrical components, electrical solid devices, etc., can solve the problem of reducing the accuracy of fingerprint identification detection results, and achieve the effect of simplifying settings, reducing adverse effects, and improving accuracy
Active Publication Date: 2020-03-13
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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- Description
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Problems solved by technology
The fingerprint identification unit usually includes a photodiode and a storage capacitor, which together convert the reflected light via the touch body into a current / voltage signal, but due to the presence of ambient light (sunlight or light, etc.), the fingerprint identification is reduced. Accuracy of detection results
Method used
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[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.
[0032] figure 1 A schematic diagram of the circuit structure of a fingerprint identification unit provided by an embodiment of the present invention, refer to figure 1 , the fingerprint identification unit circuit includes a photodiode D, a storage capacitor C and a thin film transistor T. The anode of the photodiode D is electrically connected to the first plate of the storage capacitor C, and the negative pole of the photodiode D is electrically connected to the second plate of the storage capacitor C and the s...
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Abstract
The present invention provides a display panel and electronic equipment. The display panel includes: an array substrate, including a base substrate; a plurality of organic light-emitting structures, including a first organic light-emitting structure, a second organic light-emitting structure, and a third organic light-emitting structure; fingerprint recognition unit; a first color filter film; in the fingerprint identification stage, the first organic light emitting structure and / or the second organic light emitting structure are used as the light source of the fingerprint identification unit; the emitted light of the first organic light emitting structure and / or the second organic light emitting structure has The first spectral range, the transmission spectral range of the first color filter film is the second spectral range, the spectral range corresponding to visible light and near-infrared light is the third spectral range, the first spectral range is located in the second spectral range, and the second spectral range Located within the third spectral range, at least part of the light within the third spectral range and outside the second spectral range is absorbed or reflected by the first color filter. The invention reduces the influence of ambient light and improves the accuracy of fingerprint detection results.
Description
technical field [0001] The invention relates to the field of display technology, in particular to a display panel and electronic equipment. Background technique [0002] Because fingerprints are innate and unique to each person. With the development of technology, a variety of display devices with fingerprint recognition functions appear on the market, such as mobile phones, tablet computers, and smart wearable devices. In this way, before operating the display device with fingerprint identification function, the user only needs to touch a specific area of the display device with his finger, and the authority verification can be performed through the identification of the fingerprint identification unit, which simplifies the authority verification process. According to the working principle, fingerprint recognition can include optical fingerprint recognition and ultrasonic fingerprint recognition. [0003] Fingerprints are composed of a series of ridges and valleys on th...
Claims
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IPC IPC(8): H01L27/32G06K9/00G06V10/143G06V10/147
CPCG06V40/1318H10K59/40H10K59/12H10K59/65G06F3/0421G06F3/0412G06V40/1359G06V10/143G06V10/147H10K59/35H10K59/38H10K59/122
Inventor 曾洋马骏张卿王丽花谢亮丁洪杜凌霄柴慧平杨康姚绮君
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD