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Pixel circuit, display device and display control method for pixel circuit

A technology of pixel circuit and control terminal, which is applied in the display control of display device and pixel circuit, and in the field of pixel circuit, which can solve the problems such as difficulty in grayscale segmentation

Active Publication Date: 2022-05-24
深圳晶微峰光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Limited by the resolution of the driver IC (integrated circuit) or the response accuracy of the display device, when the brightness is low, it is easy to have the problem of difficult segmentation of the gray scale

Method used

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  • Pixel circuit, display device and display control method for pixel circuit
  • Pixel circuit, display device and display control method for pixel circuit
  • Pixel circuit, display device and display control method for pixel circuit

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Embodiment Construction

[0016] In order to make the above objects, features and advantages of the present application more clearly understood, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all the structures related to the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0017] The terms "first", "second", etc. in this application are used to distinguish different objects, rather than to describe a specific order. Furthermore, the terms "comprising" and "having" and any va...

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Abstract

The application relates to the field of light source driving circuits, and discloses a pixel circuit, a display device, and a display control method for the pixel circuit. The present application provides a pixel circuit, including a light emitting device, a driving switch, a first data writing module and a second data writing module. The first data writing module loads and saves the first data voltage from the data line in the first data writing phase; the second data writing module includes a pass node and loads initialization data from the data line to the pass node in the initialization phase , load and save the second data voltage from the data line in the second data writing stage, and in the display stage, the second data writing module is introduced into the slope voltage; the luminous brightness is controlled by the first data voltage, and the luminous brightness is controlled by the second data voltage and the slope voltage control the light-emitting time of the light-emitting device, so that the light-emitting time of the light-emitting device can be controlled, and the visual brightness and gray-scale resolution can be precisely adjusted.

Description

technical field [0001] The present application relates to the technical field of light source driving circuits, and in particular, to a pixel circuit, a display device and a display control method for the pixel circuit. Background technique [0002] Most of the pixel circuits in the prior art are based on active light-emitting device driving circuits. This circuit can only roughly control the brightness of the light-emitting device through an analog signal. The analog driving scheme in the prior art will cause the device to display different colors under different brightness, which reduces the display quality. Due to the human eye's perception of brightness, there is no linear relationship between grayscale and brightness. Limited by the resolution of the driver IC (integrated circuit), or the response accuracy of the display device, at low brightness, it is prone to the problem that the gray scale is difficult to segment. SUMMARY OF THE INVENTION [0003] The pixel cir...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
CPCG09G3/20
Inventor 付舰航
Owner 深圳晶微峰光电科技有限公司
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