Display module, brightness adjusting method and display device

A display module and display panel technology, which is applied to static indicators, instruments, etc., can solve the problems that the consistency of different gray scales cannot be guaranteed, and achieve the effect of reducing the burden and ensuring the consistency of changes

Pending Publication Date: 2020-07-24
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 main purpose of the present invention is to provide a display module, a brightness adjustment method and a display device to solve the problems in the prior art that the blue light cannot be adjusted while reducing the burden of image processing, and cannot guarantee different gray scales during color adjustment. Consistency Change Issues

Method used

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  • Display module, brightness adjusting method and display device
  • Display module, brightness adjusting method and display device
  • Display module, brightness adjusting method and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0055] According to a specific implementation manner, the blue driving circuit outputs the driving current through its driving current output terminal, and the driving current output terminal is electrically connected to the first pole of the blue light-emitting element;

[0056] The blue light emitting control circuit is also electrically connected to the second pole and the first voltage terminal of the blue light emitting element, and is used to turn on or off the blue light emitting element under the control of the blue light emitting control signal. The connection between the second pole of the color light-emitting element and the first voltage terminal.

[0057] Such as figure 2 As shown, an embodiment of the blue pixel unit may include a blue driving circuit 11, a blue light emitting control circuit 12 and a blue light emitting element Elb, and the blue driving circuit 11 is used to generate a driving current, and pass the The driving current output terminal O1 of the...

specific Embodiment approach

[0098] According to a specific implementation manner, the blue light emission control circuit may include a blue light emission control transistor; the control electrode of the blue light emission control transistor is electrically connected to the blue light emission control line;

[0099] The first pole of the blue light emitting control transistor is electrically connected to the second pole of the blue light emitting element, and the second pole of the blue light emitting control transistor is electrically connected to the first voltage terminal; or, the blue The first pole of the light-emitting control transistor is electrically connected to the output terminal of the driving current, and the second pole of the blue light-emitting control transistor is electrically connected to the first pole of the blue light-emitting element; the blue light-emitting control transistor is A p-type transistor, the duty cycle of the first pulse width modulation signal is greater than the du...

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PUM

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Abstract

The invention provides a display module, a brightness adjusting method and a display device. The display module comprises a display panel, and the display panel comprises a plurality of blue pixel units arranged on a substrate; wherein each blue pixel unit comprises a blue drive circuit and a blue light-emitting element, and the blue drive circuit is used for generating driving current; the display module is characterized in that the display module further comprises a blue light adjusting circuit; the blue pixel unit further comprises a blue light-emitting control circuit. The blue light-emitting control circuit is electrically connected with a blue light-emitting control line and is used for controlling the blue drive circuit to drive the blue light-emitting element to emit light under the control of a blue light-emitting control signal on the blue light-emitting control line; the blue light adjusting circuit is used for providing the blue light emitting control signal for the blue light emitting control line. According to the invention, blue dimming is carried out while the burden of image processing is reduced, and the consistency change of different gray scales during toning can be ensured.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display module, a brightness adjustment method and a display device. Background technique [0002] AMOLED (Active-matrix organic light-emitting diode, active-matrix organic light-emitting diode) display technology is currently widely used. As people use more and more electronic display products, visual fatigue and blue light damage are becoming more and more common concerns. Especially in mobile products, there must be an eye protection mode for users to choose. Blue light refers to the light emitted by the AMOLED screen with a wavelength between 400 nanometers and 500 nanometers. This part of the light can directly penetrate the cornea and lens of the eye and reach the retina, thereby inducing discomfort symptoms such as eye fatigue, dry eyes, and biological clock disorders. The eye protection mode is to adjust the color temperature of the screen to reduce blue light. It use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3233
CPCG09G3/3233
Inventor 段立业卢尧杨志明马小惠
Owner BOE TECH GRP CO LTD
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