Display adjusting circuit and method and display device
A technology for adjusting circuits and displaying data, applied in static indicators, instruments, etc., can solve problems such as differences, affecting the image quality of high-resolution display screens, uneven brightness, etc., to increase the range, reduce the degree of Mura, and improve the quality. Effect
Active Publication Date: 2021-11-30
BOE TECH GRP CO LTD +1
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- Abstract
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- Application Information
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Problems solved by technology
[0003]
However, due to the influence of factors such as technology and materials, there are differences in the characteristics of the TFT (thin film transistor) in the panel, especially at low brightness and low gray scale, the difference is more obvious, resulting in Mura (uneven brightness) phenomenon
There are certain limitations in improving this problem through the improvement of process capabilities, which affects the image quality of high-resolution display screens
Method used
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[0023] The application describes a number of embodiments, but the description is illustrative rather than restrictive, and it will be obvious to those of ordinary skill in the art that within the scope of the embodiments described in the application, There are many more embodiments and implementations. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Except where expressly limited, any feature or element of any embodiment may be used in combination with, or substituted for, any other feature or element of any other embodiment.
[0024] This application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features and elements of this application can also be combined with any conventional feature or element to form unique inventive solutions as defined by the append...
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The invention discloses a display adjusting circuit. The display adjusting circuit comprises a pixel unit array; the pixel unit array comprises M rows and N columns of pixel units; at least one pixel unit comprises a light-emitting device and a light-emitting control switch device connected in series with the light-emitting device; and the light-emitting control switch devices of the pixel units are configured to control the light-emitting devices to be periodically switched between a light-emitting state and a non-light-emitting state within the period of one frame under the control of the line brightness control signals corresponding to the line where the pixel units are located. The light-emitting devices of the pixel units are configured to control the magnitude of current flowing through the light-emitting devices through display data signals corresponding to the pixel units; wherein the row brightness control signal is a pulse width modulation signal, the frequency of the row brightness control signal is a times of the frame frequency, and a is an integer greater than 1. According to the scheme, the precision of picture brightness adjustment can be improved, and the Mura degree of screen display is reduced.
Description
technical field [0001] The embodiments of the present application relate to the field of display technology, and in particular, to a display adjustment circuit, method and display device. Background technique [0002] With the continuous development of AMOLED (Active Matrix Organic Light Emitting Diode, Active Matrix Organic Light Emitting Diode) display technology, the requirements for display resolution, refresh rate, etc. are getting higher and higher. Among the many technologies to improve the expressiveness of AMOLED products, the improvement of PPI (Pixels Per Inch) has become the focus of attention, because in the case of a certain product size, the most direct way to further improve the image quality is to increase the number of available pixels as much as possible. The number of pixels arranged, which requires the volume of each sub-pixel to be smaller, so that the details of the display screen are richer. [0003] However, due to factors such as technology and mat...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G09G3/3225G09G3/3258
CPCG09G3/3225G09G3/3258G09G2320/02G09G2320/0271Y02B20/30
Inventor胡振文贾群牟仕浩刘文红
OwnerBOE TECH GRP CO LTD