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Driving voltage control system and display device

A technology of control system and driving voltage, applied in static indicators, instruments, etc., can solve the problems of high cost and large-size display screen charging difference, and achieve the effect of low cost and reducing charging difference

Active Publication Date: 2018-12-14
HKC CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a driving voltage control system and a display device for the problems of charging differences and high cost of large-size display screens

Method used

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  • Driving voltage control system and display device
  • Driving voltage control system and display device
  • Driving voltage control system and display device

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Embodiment Construction

[0032] see figure 1 , the driving voltage control system includes: a timing control module 10 and a gamma voltage module 20 . The timing control module 10 is connected to the gamma voltage module 20 . The timing control module 10 is used to detect the current charging area of ​​the display panel 102 , and transmit the corresponding voltage difference data code to the gamma voltage module 20 according to the detected current charging area. The gamma voltage module 20 is configured to output a gamma voltage according to the voltage difference data code and the reference voltage data code to charge the display panel 102 . The display panel 102 is connected to the timing control module 10 and the gamma voltage module 20 .

[0033] The timing control module 10 is connected to the gamma voltage module 20 through a serial bus. In this embodiment, the timing control module 10 and the gamma voltage module 20 are connected through an I2C (Inter-Integrated Circuit) bus. In the commun...

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Abstract

The invention relates to a driving voltage control system comprising a sequential control module and a gamma voltage module. The sequential control module is connected with the gamma voltage module. The sequential control module is used for detecting the current charging area of the display panel and transmitting the voltage difference data code corresponding to the current charging area to the gamma voltage module. The gamma voltage module is used for outputting gamma voltage according to the voltage difference data code and the reference voltage data code so as to charge the display panel. According to the driving voltage control system, the charging effect of dynamically matching the display panel can be realized, the charging difference of the display panel can be reduced without doubling the number of the data lines and thus the cost is low.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a driving voltage control system and a display device. Background technique [0002] As the size of the display becomes larger and the resolution becomes higher and higher, when the data line is charging the display panel, the charging difference between the near-end area of ​​the display panel close to the driver board and the far-end area away from the driver board becomes larger. It is more and more obvious that the near-end area of ​​the display panel close to the driver board has better charging effect and higher brightness, while the far-end area of ​​the display panel away from the driver board has poorer charging effect and lower brightness. [0003] At present, larger-sized display screens are usually charged by double-sided driving of data lines to reduce charging differences, but this method requires twice as many data lines and is expensive. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09G3/3208
CPCG09G3/3208G09G3/3696
Inventor 王明良
Owner HKC CORP LTD
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