Display device, liquid crystal display panel and driving method of liquid crystal display panel

A technology of liquid crystal display panel and liquid crystal layer, which is applied in static indicators, optics, instruments, etc., can solve the problems of difficult to display images and difficult to apply liquid crystal display panel for fingerprint identification technology.

Active Publication Date: 2019-08-30
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if a light-shielding layer with small holes is provided in the liquid crystal display panel, the light-shielding layer will block the light of the backlight module, making it difficult to display images, which makes it difficult to apply fingerprint recognition technology to the liquid crystal display panel

Method used

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  • Display device, liquid crystal display panel and driving method of liquid crystal display panel
  • Display device, liquid crystal display panel and driving method of liquid crystal display panel
  • Display device, liquid crystal display panel and driving method of liquid crystal display panel

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Embodiment Construction

[0053] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various 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 in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0054] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of an icon to another component, these terms are used in this specification only for convenience, such as according to the direction of the example descri...

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Abstract

The invention provides a display device, a liquid crystal display panel and a driving method of the liquid crystal display panel, and relates to the technical field of display. The liquid crystal display panel comprises a display module, a backlight module, a first polaroid, a second polaroid, a light guide layer, an identification light source and an identification light induction circuit. The display module comprises a liquid crystal layer and a color film layer positioned on one side of the liquid crystal layer, the color film layer comprises a plurality of light filtering areas corresponding to sub-pixels one by one, the liquid crystal layer is used for forming an identification area, and the identification area comprises a plurality of light transmitting areas corresponding to the sub-pixels; the backlight module is arranged at the backlight side of the display module; the first polaroid is arranged on the light incident side of the liquid crystal layer; the second polaroid is arranged on one side of the liquid crystal layer opposite to the first polaroid; the back surface of the light guide layer is arranged opposite to the display module, and a contact surface is used for contacting with fingers; at least part of light rays emitted by the identification light source and entering the light guide layer can be totally reflected between the back surface and the contact surface; and the identification light induction circuit is arranged on one side of the first polaroid opposite to the second polaroid.

Description

technical field [0001] The present disclosure relates to the field of display technology, and in particular, to a display device, a liquid crystal display panel, and a driving method of the liquid crystal display panel. Background technique [0002] At present, the technology of realizing fingerprint recognition on the display panel has been widely used, wherein, the display panel with the fingerprint recognition function is usually an OLED (Organic Light-Emitting Diode, organic light-emitting diode) display panel, and the light emitted by the organic light-emitting layer passes through the After the fingerprint is reflected, it reaches the fingerprint identification device through the small hole on the light-shielding layer on the side of the organic light-emitting layer away from the finger, so as to obtain the fingerprint information. However, if a light-shielding layer with small holes is provided in the liquid crystal display panel, the light-shielding layer will block ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333G02F1/1335G02F1/133G06K9/00
CPCG02F1/13338G02F1/133528G02F1/133524G02F1/13306G06V40/1318
Inventor 张永忠苏京程晓萍
Owner BOE TECH GRP CO LTD
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