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Drive circuit and display device

A driving circuit and display device technology, applied to static indicators, instruments, etc., can solve the problems of delicate images, aesthetics and layers to be improved, and achieve the effect of increasing the number of colors and fine images

Active Publication Date: 2020-01-03
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The display colors of the existing reflective display devices are 64 colors, and the number of displayed colors is small, so the displayed images need to be improved in terms of fineness, beauty and level

Method used

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  • Drive circuit and display device
  • Drive circuit and display device

Examples

Experimental program
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Embodiment Construction

[0014] see figure 1 , is a schematic circuit diagram of an existing drive circuit. From figure 1 It can be seen from the figure that the driving chip is connected to the display area for outputting driving signals to the display area for image display. see figure 2 , is a schematic diagram of the principle of the existing area color scale method. From figure 2 It can be seen that each pixel in the display area includes three sub-pixels (ie red sub-pixel R, green sub-pixel G and blue sub-pixel B), wherein each sub-pixel is divided into three parts, and each part has only There are two states of bright and dark, so 4 gray levels are formed, and one pixel formed by three sub-pixels displays 64 colors. Because the number of displayed colors is limited, the displayed image needs to be improved in terms of fineness, beauty and level.

[0015] Please refer to image 3 , is a schematic circuit diagram of the first embodiment of the driving circuit of the present invention. Th...

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PUM

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Abstract

Provided are a drive circuit (1) and a display apparatus. The drive circuit (1) comprises a drive chip (10), a first controllable switch (T1) and a resistor (R), wherein a first pin (1) of the drive chip (10) is connected to a second end of the first controllable switch (T1); a control end of the first controllable switch (T1) receives a switch signal (S1); a first end of the first controllable switch (T1) is connected to a display area (20) via the resistor (R); and when the drive circuit (1) is in a voltage division working mode of the resistor (R), the switch signal (S1) is a low-level signal, the first controllable switch (T1) is turned on, the resistor (R) performs voltage division, and the display area (20) displays a first type of colour, so as to increase the number of colours displayed, such that a displayed image is finer, more aesthetically pleasing and more stereoscopic.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a driving circuit and a display device. Background technique [0002] With the development of display technology, display devices have been widely used in various fields, such as various electronic products such as mobile phones, tablet computers or electronic paper. A typical reflective display device includes red, green, blue color filters and a reflective display layer. The reflective display layer is located under the color filters, and is used for selectively reflecting light passing through the color filters, so that the reflective display device displays images. The display colors of the existing reflective display devices are 64 colors, and the number of displayed colors is relatively small, so the displayed images need to be improved in terms of fineness, beauty and level. Contents of the invention [0003] The technical problem mainly solved by the present inventio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20
CPCG09G3/2003
Inventor 宋文庆
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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