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

A technology for a touch display panel and a display substrate, which is applied to the touch display panel, display device and the driving field of the touch display panel, can solve the problems of unclear and discontinuous fingerprints, and the accuracy of fingerprint recognition on the display panel is reduced, and achieves a high level of improvement. The effect of fingerprint recognition accuracy

Active Publication Date: 2018-07-17
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 touch display panel driving method
  • Touch display panel, display device and touch display panel driving method
  • Touch display panel, display device and touch display panel driving method

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 touch display panel driving method, and belongs to the technical field of display. The touch display panel comprises a display substrate, a control unit, a fingerprint recognition unit and an auxiliary light source; when the touch display panel executes a fingerprint recognition function, a finger presses the touch display panelto form a pressing area; the touch display panel comprises a detection area and a lightening area; the detection area is at least a part of the pressing area; the lightening area is located outside the detection area; the control unit controls the auxiliary light source in the lightening area to be lightened, and controls the auxiliary light source in the detection area to be turned off; and thelight emitted by the auxiliary light source in the lightening area is internally reflected by the finger to form reflected light which enters the fingerprint recognition unit to carry out fingerprintrecognition. Compared with the prior art, the touch display panel is capable of improving the fingerprint recognition precision.

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 Applications(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
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