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Display device and driving method thereof

A driving method and technology of a display device, which are applied to static indicators, light guides, optics, etc., can solve the problem of insufficient color gamut to meet requirements, and achieve the effect of increasing the color gamut range.

Active Publication Date: 2018-10-19
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the color gamut improved in this way is still not enough to meet the requirements

Method used

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  • Display device and driving method thereof
  • Display device and driving method thereof

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Embodiment 1

[0026] In specific implementation, the light source assembly may be a side-entry type. Such as figure 1 As shown, the light source assembly 200 may further include: a light guide plate 230 for guiding the light emitted by the green LED 210 and the blue LED 220 in the light source assembly to the liquid crystal display panel 100 . Moreover, the quantum dot layer 300 is located on the side of the light guide plate 230 facing the liquid crystal display panel 100 . The quantum dot layer 300 may include: a film substrate, green quantum dots and red quantum dots, and the green quantum dots and red quantum dots are evenly distributed on the surface of the film substrate. Of course, the light source assembly can also be a direct type, which is not limited here.

[0027] In specific implementation, the peak wavelength λ of the emitted light of the green LED GLED Can be 540nm. And the green LED can excite the red quantum dots and green quantum dots in the quantum dot layer, so that ...

Embodiment 2

[0039] The structural schematic diagram of the display device corresponding to this embodiment is as follows Figure 5 As shown, it is modified for the implementation of the quantum dot layer and the liquid crystal display panel in the first embodiment. The following only describes the differences between this embodiment and the first embodiment, and the similarities will not be repeated here.

[0040] In specific implementation, such as Figure 5 As shown, the liquid crystal display panel may include: an array substrate 110 and an opposite substrate 120 disposed opposite to each other. The quantum dot layer 300 can be located between the array substrate 110 and the opposite substrate 120; wherein, the quantum dot layer 300 can be located on the opposite substrate 120, and is located on the side of the opposite substrate 120 facing the liquid crystal layer; or, the quantum dot layer 300 It can also be located on the array substrate 110 and on the side of the array substrate ...

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Abstract

The invention discloses a display device and a driving method thereof. A plurality of blue light LEDs and a plurality of green LEDs are driven to be lightened so as to stimulate a quantum dot layer toemit fluorescence. When the green light LEDs are lightened, a first green subpixel is charged, so that the first green subpixel emits first green light with the emitting wavelength being a first peakvalue. When the blue light LEDs are lightened, a second green subpixel is charged, so that the second green subpixel emits second green light with the emitting length being a second peak value. The first peak value and the second peak value are different, and the color coordinates of the first green light and the second green light on a CIE chromaticity diagram are different, so that green correspond to two color coordinates. The vision persistence effect of human eyes enables human eyes to see the green light which is light formed after the first green light and the second green light are mixed, so that the color gamut range of the display device is enlarged.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a display device and a driving method thereof. Background technique [0002] Liquid crystal display (Liquid Crystal Display, LCD) is a kind of flat-panel display, because it has the advantages of high space utilization, low power consumption, low electromagnetic interference, etc., it is widely used in televisions, computers, mobile phones, PDA (Personal Digital Assistant, handheld computer) and other products. Currently, the LCD backlight generally uses blue light emitting diodes (Light Emitting Diode, LED) to excite red and green phosphors to form a white backlight. However, phosphors have low luminous efficiency and wide spectral bandwidth, which is not conducive to the improvement of the color gamut level of LCD. In order to improve the color gamut level, quantum dot backlight technology has emerged as the times require. Quantum dots are quasi-zero-dimensional nanomaterial...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02F1/1335G09G3/34G02B6/00G09G3/36
CPCG02B6/005G02B6/0073G02F1/133514G02F1/133603G09G3/3406G09G3/36G02F1/133614
Inventor 周婷陈煌彬许志高沈柏平
Owner XIAMEN TIANMA MICRO ELECTRONICS
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