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Driving system and method applicable to red, green, blue and white (RGBW) sub-pixel display screen

A technology for driving systems and sub-pixels, applied in static indicators, instruments, etc., can solve the problems of high driving cost, high system complexity, and large data transmission volume.

Active Publication Date: 2013-04-03
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide a driving system and method suitable for RGBW four-color sub-pixel display screens, which are used to solve the large data transmission volume caused by using RGBW source driver chips to drive RGBW display screens in the prior art , higher system complexity and higher drive costs

Method used

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  • Driving system and method applicable to red, green, blue and white (RGBW) sub-pixel display screen
  • Driving system and method applicable to red, green, blue and white (RGBW) sub-pixel display screen
  • Driving system and method applicable to red, green, blue and white (RGBW) sub-pixel display screen

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Embodiment 1

[0026] Such as figure 2 As shown, it is a schematic structural diagram of a driving system suitable for RGBW four-color sub-pixel display screens in Embodiment 1 of the present invention. The driving system includes an RGB source driving chip 11 and an analog signal conversion unit 12, and may also include a It is used to receive the RGB digital driving signal from the external system, and output the received RGB digital driving signal to the TCON13 of the RGB source driver chip 11 and the RGBW four-color sub-pixel display screen 14, etc., wherein:

[0027] The RGB source driver chip 11 is used to receive RGB digital drive signals from TCON13, and perform digital-to-analog conversion on every N groups of RGB digital drive signals received from TCON13 to obtain N groups including R, G, and B tricolors. An analog driving signal of the pixel driving voltage, and outputting the N groups of analog driving signals including R, G, and B three-color sub-pixel driving voltages to the ...

Embodiment 2

[0048] Such as Figure 4 As shown, it is a schematic flowchart of a driving method suitable for RGBW four-color sub-pixel display screens described in Embodiment 2 of the present invention. The RGBW four-color sub-pixel display screens (referred to as RGBW display screens) can be AMOLED display screens, etc. , the embodiment of the present invention does not make any limitation on this, specifically, the driving method may include the following steps:

[0049] Step 101: The analog signal conversion unit receives N groups of analog driving signals including sub-pixel driving voltages of R, G, and B colors output by the RGB source driving chip, wherein N is a positive integer.

[0050] Specifically, the RGB source driver chip outputs the N groups of analog drive signals including R, G, and B three-color sub-pixel drive voltages. The RGB source driver chip performs digital-to-analog conversion on the RGB digital drive signals received from TCON. obtained after.

[0051] Specifi...

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Abstract

The invention discloses a driving system and method applicable to a red, green, blue and white (RGBW) sub-pixel display screen. The driving system comprises a RGB source driving chip and an analog signal conversion unit. The RGB source driving chip is used for converting received each N group of RGB digital driving signals coming from a time schedule controller to N groups of analog driving signals comprising RGB sub-pixel driving voltage and outputting the analog driving signals to the analog signal conversion unit. The analog signal conversion unit is used for converting each N group of the analog driving signals comprising RGB sub-pixel driving voltage to N groups of the analog driving signals comprising RGBW sub-pixel driving voltage and outputting the analog driving signals comprising RGBW sub-pixel driving voltage to an effective display area of the RGBW sub-pixel display screen, wherein N is a positive integer. According to the driving system and method, the effect of using the RGB source driving chip to drive the RGBW display screen can be achieved, system complexity is simplified, and system driving cost is saved.

Description

technical field [0001] The invention relates to the technical field of display screen drive, in particular to a drive system and method suitable for RGBW (red, green, blue, white) four-color sub-pixel display screens. Background technique [0002] Compared with TFT-LCD (Thin Film Transistor-Liquid Crystal Display, thin film transistor-liquid crystal display), AMOLED (Active-Matrix Organic Light Emitting Diode, active matrix organic light emitting diode) display has more advantages, such as: No need for backlight, fast response, high contrast, wide viewing angle, low energy consumption, and flexible display, etc., will make great progress in the field of flat panel display in the future. However, because AMOLED has problems such as poor uniformity, threshold shift, low luminous efficiency, and short service life in the manufacturing process, the industry often uses internal pixel compensation design (increasing the number of TFTs and capacitors in the sub-pixel). way to comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/32G09G3/3258
Inventor 解红军
Owner BOE TECH GRP CO LTD
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