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Touch display panel, display device and driving method of touch display panel

A technology for touch display panels and display substrates, which is applied in the driving fields of touch display panels, display devices and touch display panels. The effect of recognition accuracy

Active Publication Date: 2020-11-03
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, at the position corresponding to the ridge 41, the reflectivity of the light L is not significantly reduced, and the fingerprints recognized by the display panel are unclear or discontinuous, resulting in a decrease in the recognition accuracy of the fingerprints of the display panel.

Method used

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  • Touch display panel, display device and driving method of touch display panel
  • Touch display panel, display device and driving method of touch display panel
  • Touch display panel, display device and driving method of touch display panel

Examples

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Embodiment Construction

[0025] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0026] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0027] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0028] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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PUM

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Abstract

The invention discloses a touch display panel, a display device and a driving method of the touch display panel, which belong to the field of display technology and include: a display substrate, a control unit, a fingerprint identification unit and an auxiliary light source; the touch display panel performs the fingerprint identification function When the finger presses the touch display panel to form a pressing area on the touch display panel; the touch display panel includes a detection area and a lighting area, the detection area is at least a part of the pressing area, and the lighting area is located outside the detection area; the control unit The auxiliary light source in the lighting area is controlled to turn on, and the auxiliary light source in the detection area is turned off; the light emitted by the auxiliary light source in the lighting area is reflected by the finger and then enters the fingerprint identification unit as reflected light for fingerprint identification. Compared with the prior art, the accuracy of fingerprint identification can be improved.

Description

technical field [0001] The present invention relates to the field of display technology, and more specifically, to a touch display panel, a display device, and a driving method for the touch display panel. Background technique [0002] With the development of display technology, integrating a fingerprint recognition function in a display panel has become one of the important research and development directions. [0003] Please refer to figure 1 , in a display panel provided by the prior art, it includes a base substrate 5, an identification light source 1 arranged on the base substrate 5, a photosensitive fingerprint identification unit 2 and an angle limiting film 3. When performing fingerprint identification, usually the finger covers The area includes the identification area, the identification light source 1 of the identification area emits light, and the identification light source 1 can emit light L, and the light-sensitive fingerprint identification unit 2 can perfor...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041H01L27/32
CPCG06F3/0412G06F2203/04103H10K59/40
Inventor 曾洋芳贺浩史重村幸治王丽花虞豪驰谢亮
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD