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Display module, driving method thereof and display device

A technology for display modules and display panels, which is used in character and pattern recognition, print image acquisition, instruments, etc., and can solve the problems of saturation of texture recognition devices and inability to perform texture recognition.

Pending Publication Date: 2020-08-18
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a display module, its driving method, and a display device to solve the problem of total reflection of the light incident on the color filter substrate in the prior art. Since the light intensity of the light totally reflected on the texture recognition device is too large, it is easy to Caused the texture recognition device to reach saturation, resulting in the inability to perform texture recognition

Method used

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  • Display module, driving method thereof and display device
  • Display module, driving method thereof and display device
  • Display module, driving method thereof and display device

Examples

Experimental program
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Effect test

Embodiment 1

[0050] refer to figure 1 , shows a schematic structural diagram of a display module according to an embodiment of the present invention.

[0051] An embodiment of the present invention provides a display module, including: a display panel 10 and an optical modulation structure 20 disposed on the light incident side of the display panel 10, the display panel 10 includes a texture recognition device 111; the optical modulation structure 20 is configured as When performing texture recognition, the incident light provided by the backlight module is received, and the incident light at the target position in the preset area is converted into the first polarized light, so that the first polarized light passes through the display panel 10 and irradiates to the 10 On the object to be detected 30 on the light-emitting side; the texture recognition device 111 is configured to receive the light reflected back by the object to be detected 30 to identify the texture image of the object to b...

Embodiment 2

[0130] refer to Figure 12 , which shows a flow chart of a method for driving a display module according to an embodiment of the present invention, which is applied to drive the above-mentioned display module, and may specifically include the following steps:

[0131]Step 1201, when performing texture recognition, control the optical modulation structure to convert the incident light provided by the backlight module at the target position in the preset area into a first polarized light, so that the first polarized light passes through the display panel and illuminates onto the object to be detected on the light-emitting side of the display panel.

[0132] In the embodiment of the present invention, when texture recognition is required, the optical modulation structure 20 receives the incident light provided by the backlight module, and controls the optical modulation structure 20 to convert the incident light provided by the backlight module at the target position in the prese...

Embodiment 3

[0139] An embodiment of the present invention also provides a display device, including the above-mentioned display module. The display module includes a display panel 10 and an optical modulation structure 20 disposed on the light-incident side of the display panel 10 .

[0140] Such as Figure 13 As shown, the display device further includes a backlight module 50 disposed on the side of the optical modulation structure 20 away from the display panel 10 , that is, the optical modulation structure 20 is disposed between the backlight module 50 and the display panel 10 .

[0141] In addition, the display device further includes a cover plate 60 disposed on the side of the display panel 10 away from the optical modulation structure 20 , and the cover plate 60 may be a glass cover plate for protecting the display module.

[0142] Wherein, the backlight module 50 can be such as Figure 14 The shown edge-type backlight module includes a light bar 51 and an optical structure 52 dis...

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PUM

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Abstract

The invention provides a display module, a driving method thereof and a display device, and relates to the technical field of display. According to the invention, the optical modulation structure is arranged at the light incident side of the display panel; when grain recognition is carried out, the optical modulation structure receives incident light provided by the backlight module and converts the incident light at the target position into first polarized light, so that the first polarized light penetrates through the display panel and irradiates an object to be detected, and light reflectedby the object to be detected is received so as to recognize a grain image of the object to be detected. An optical modulation structure is additionally arranged on the light incident side of the display panel; when line recognition is carried out, only the incident light at the target position in the preset area in the incident light provided by the backlight mdule can penetrate through the display panel to irradiate the to-be-detected object, stray light is shielded, the invalid light intensity generated when the incident light provided by the backlight module is totally reflected on the color film substrate side is effectively reduced, and therefore grain recognition can be achieved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display module, a driving method thereof, and a display device. Background technique [0002] With the continuous development of display technology, display devices are widely used in people's life and work. In the process of using display devices, such as online shopping, payment, etc., the security of display devices has a great influence on user experience. big impact. [0003] At present, many display devices use texture recognition devices on the array substrate to improve the safety of the display device. When performing texture recognition, the light emitted by the backlight module passes through the lower polarizer, the array substrate, the liquid crystal layer and the color filter substrate. , the upper polarizer is selectively transmitted, so that the light of some pixels passes through the display panel and irradiates the object to be detected, while the other part...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333G02F1/1347G02F1/1335G02F1/1343G02F1/137G06K9/00
CPCG02F1/1333G02F1/1347G02F1/133528G02F1/134336G02F1/137G02F1/13338G02F1/133531G02F1/13706G02F1/13712G06V40/1318
Inventor 马新利钱学强刘冰洋徐天宇陈东川李昌峰王凯旋王迎姿
Owner BOE TECH GRP CO LTD