CN-224232078-U - Display device

Abstract

The application provides a display device which comprises a backlight module, a display panel and a display panel, wherein the backlight module comprises a substrate, a plurality of first light-emitting units and a plurality of second light-emitting units, the first light-emitting units have first optical characteristics, the second light-emitting units have second optical characteristics, the first optical characteristics are different from the second optical characteristics, the plurality of first light-emitting units and the plurality of second light-emitting units are distributed on the substrate in an array manner, at least one first light-emitting unit is arranged adjacent to the second light-emitting unit, the display panel is arranged on the light-emitting side of the backlight module, the display panel comprises a plurality of pixel units distributed in an array manner, and the light-emitting area of each first light-emitting unit or each second light-emitting unit correspondingly covers at least two pixel units. The display device can realize high-efficiency and accurate control under a complex scene, and simultaneously reduce energy consumption and improve energy efficiency ratio.

Inventors

• LI JIANLIN
• FANG LIAN

Assignees

• 深圳TCL新技术有限公司

Dates

Publication Date

20260512

Application Date

20250521

Claims (10)

1. 1. A display device, comprising: The backlight module comprises a substrate, a plurality of first light-emitting units and a plurality of second light-emitting units, wherein the first light-emitting units have first optical characteristics, the second light-emitting units have second optical characteristics, the first optical characteristics are different from the second optical characteristics, the plurality of first light-emitting units and the plurality of second light-emitting units are distributed on the substrate in an array manner, and at least one first light-emitting unit and the second light-emitting unit are adjacently arranged; The display panel is arranged on the light emitting side of the backlight module and comprises a plurality of pixel units distributed in an array, and the light emitting area of each first light emitting unit or each second light emitting unit correspondingly covers at least two pixel units.
2. 2. The display device of claim 1, wherein a plurality of rows of the first light emitting units and a plurality of rows of the second light emitting units are arranged alternately periodically.
3. 3. The display device according to claim 2, wherein when the size of the display panel is greater than or equal to a preset size, the ratio of the number of rows of the first light emitting unit to the number of rows of the second light emitting unit is 1:1, and when the size of the display panel is less than the preset size, the ratio of the number of rows of the first light emitting unit to the number of rows of the second light emitting unit is 2:1.
4. 4. The display device according to any one of claims 1 to 3, wherein the first optical characteristic includes a first light emission angle, the second optical characteristic includes a second light emission angle, the first light emission angle is larger than the second light emission angle, wherein a range of the first light emission angle is 30 ° or more, and a range of the second light emission angle is less than 30 °.
5. 5. The display device according to claim 4, wherein the first light emitting unit includes a first light emitting chip and a first optical member configured to expand an outgoing light angle of the first light emitting chip to the first light emitting angle, and the second light emitting unit includes a second light emitting chip and a second optical member configured to restrict the outgoing light angle of the second light emitting chip to the second light emitting angle.
6. 6. The display device of claim 5, wherein the first optical component is a reflective lens, a bottom of the first optical component is provided with a first accommodating cavity configured to accommodate the first light emitting chip, a top of the first optical component is provided with a first groove, an inner wall of the first groove forms a reflective surface, and a side wall of the first optical component forms a first refractive surface.
7. 7. The display device according to claim 5, wherein the second optical component is a refractive lens, a bottom of the second optical component is provided with a second accommodating cavity configured to accommodate the second light emitting chip, a top of the second optical component is provided with a second groove, an inner wall of the second groove forms a second refractive surface, and a side wall of the second optical component forms a third refractive surface.
8. 8. A display device according to any one of claims 1 to 3, further comprising a processor electrically connected to the backlight module and the display panel, respectively, the processor being configured to provide differential signals to the display panel and control instructions to the backlight module.
9. 9. The display device according to claim 8, wherein the backlight module further comprises a backlight control chip electrically connected to the processor, the first light emitting unit, and the second light emitting unit, respectively, the backlight control chip being configured to convert control instructions of the processor into execution instructions of the first light emitting unit and the second light emitting unit.
10. 10. A display device according to any one of claims 1 to 3, further comprising a power supply electrically connected to the backlight module and the display panel, respectively, the power supply being configured to provide current signals to the first light emitting unit, the second light emitting unit and the display panel.

Description

Display device Technical Field The utility model relates to the technical field of display, in particular to a display device. Background With the continuous development of display technology and the increasing diversity of application scenarios, display devices (such as Mini LED products) with LED (LIGHT EMITTING Diode) technology are facing unprecedented performance challenges. The Mini LED technology obviously improves the contrast and the energy efficiency of the display device by reducing the chip size to 50-200 mu m and combining 1000-10000 level partition control. However, conventional display devices generally employ a single backlight module design, such as a direct-type or side-entry type backlight, and the light emitting units (e.g., LED beads) thereof have uniform spacing and uniform optical characteristics (e.g., light emitting angle and brightness). Such designs are struggling in dealing with complex display requirements, such as in scenes where both high brightness and high contrast are required, and conventional designs tend to have difficulty balancing the relationship between the two. To solve the above problems, some advanced display devices begin to employ a zone dimming strategy. The strategy comprises a plurality of light-emitting units to form backlight subareas, each subarea corresponds to a plurality of pixel units (such as a 4K display panel, wherein a single subarea covers 100 to 200 pixel units), and dynamic contrast control is realized through subarea brightness adjustment. However, this strategy brings about an increase in hardware cost and an increase in power consumption while improving performance. Disclosure of utility model The embodiment of the application provides a display device which can realize high-efficiency and accurate control under a complex scene, and simultaneously reduce energy consumption and improve energy efficiency ratio. An embodiment of the present application provides a display device including: The backlight module comprises a substrate, a plurality of first light-emitting units and a plurality of second light-emitting units, wherein the first light-emitting units have first optical characteristics, the second light-emitting units have second optical characteristics, the first optical characteristics are different from the second optical characteristics, the plurality of first light-emitting units and the plurality of second light-emitting units are distributed on the substrate in an array manner, and at least one first light-emitting unit and the second light-emitting unit are adjacently arranged; The display panel is arranged on the light emitting side of the backlight module and comprises a plurality of pixel units distributed in an array, and the light emitting area of each first light emitting unit or each second light emitting unit correspondingly covers at least two pixel units. In some embodiments, the first light emitting units and the second light emitting units are arranged in a periodic alternating manner. In some embodiments, when the size of the display panel is greater than or equal to a preset size, the ratio of the number of rows of the first light emitting unit to the number of rows of the second light emitting unit is 1:1, and when the size of the display panel is less than the preset size, the ratio of the number of rows of the first light emitting unit to the number of rows of the second light emitting unit is 2:1. In some embodiments, the first optical characteristic comprises a first light emission angle and the second optical characteristic comprises a second light emission angle, the first light emission angle being greater than the second light emission angle, wherein the first light emission angle ranges from greater than or equal to 30 degrees and the second light emission angle ranges from less than 30 degrees. In some embodiments, the first light emitting unit includes a first light emitting chip and a first optical assembly configured to expand an outgoing light angle of the first light emitting chip to the first light emitting angle, and the second light emitting unit includes a second light emitting chip and a second optical assembly configured to limit the outgoing light angle of the second light emitting chip to the second light emitting angle. In some embodiments, the first optical component is a reflective lens, a bottom of the first optical component is provided with a first accommodating cavity configured to accommodate the first light emitting chip, a top of the first optical component is provided with a first groove, an inner wall of the first groove forms a reflective surface, and a side wall of the first optical component forms a first refractive surface. In some embodiments, the second optical component is a refractive lens, a bottom of the second optical component is provided with a second accommodating cavity configured to accommodate the second light emitting chip, a top of the second optical component is