Display device and driving method

Abstract

The invention discloses a display device and a driving method. A backlight module of a liquid crystal display panel is formed by multiple straight-down type micro-LEDs so as to replace a traditional side entry type. Every tiny LED duplexing is reused as a light texture identifying emitter to emit light; the light can fully reflect at the position of a grain valley, and the light has reflection aswell as transmission in the grain ridge, thus the reflection light intensity at the valley position is caused, and the light reflected at the ridge position is weak; multiple optical grain identifyingreceiver is added between an opposite substrate and a substrate base plate; the grain is identified according to the intensity of the reflective light received by the optical texture identifying receiver, thus the pre-positioned texture identification can be realized. Due to the straight-down type micro-LED design, the light path identified by the optical texture can be solved; therefore, the display device can be used as the optical grain identifying emitter, thus the optical grain identifier does not need additional light source; the full screen design of the liquid crystal display panel can be realized under the function of the pre-positioned grain identification.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device and a driving method. Background technique [0002] As the ideas and designs of mobile phone products in the market become more and more homogeneous, terminal manufacturers and panel manufacturers are constantly seeking to integrate new technologies to attract consumers' attention, especially organic electroluminescent display panels (OLED, Organic Light Emitting Display) unique The flexible feature makes it shine in the design of mobile phones, and the liquid crystal display panel (LCD, Liquid Crystal Display), which occupies the mainstream market, detonates the market by realizing full-screen cutting through special-shaped cutting. [0003] A full screen means a high screen-to-body ratio and a narrow border design on four sides, which requires that the fingerprint recognition module used for unlocking or payment functions can only be placed on the rear...

AI Technical Summary

Problems solved by technology

[0005] In view of this, an embodiment of the present invention provides a display device and a driving method to solve the problem that the existing LCD is difficult to form a fingerprint recognition with a full-screen design

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