Search

CN-224232079-U - Display module and display device

CN224232079UCN 224232079 UCN224232079 UCN 224232079UCN-224232079-U

Abstract

The application provides a display module and a display device, wherein the display module comprises a first liquid crystal display panel, a second liquid crystal display panel, a backlight module and a light distribution element, the second liquid crystal display panel is arranged on one side of the first liquid crystal display panel away from the light emitting side of the first liquid crystal display panel, and the backlight module is arranged between the first liquid crystal display panel and the second liquid crystal display panel. The light distribution element distributes the light rays of the backlight module for the first liquid crystal display panel and the second liquid crystal display panel, so that the double-sided display of the first liquid crystal display panel and the second liquid crystal display panel can be realized only by one backlight module, the structure of the display module can be simplified, and the power consumption of the display module can be reduced.

Inventors

  • GAO KAIFANG
  • LI JUNJIE
  • LIU LEI
  • ZHANG YUHUA

Assignees

  • 广州华星光电半导体显示技术有限公司

Dates

Publication Date
20260512
Application Date
20250523

Claims (19)

  1. 1. A display module, comprising: a first liquid crystal display panel; A second liquid crystal display panel; The backlight module is arranged between the first liquid crystal display panel and the second liquid crystal display panel; the display module further comprises a light distribution element, wherein the light distribution element is used for distributing light rays of the backlight module to the first liquid crystal display panel and the second liquid crystal display panel.
  2. 2. The display module of claim 1, wherein the light distribution element is configured to transmit light of the backlight module to the first liquid crystal display panel and the second liquid crystal display panel.
  3. 3. The display module of claim 2, wherein the first liquid crystal display panel is a transmissive liquid crystal display panel and the second liquid crystal display panel is a transmissive liquid crystal display panel or a transflective liquid crystal display panel.
  4. 4. A display module according to claim 3, wherein the light distribution element comprises an optical film configured to reflect a first light ray and transmit a second light ray, the first light ray being polarized differently from the second light ray.
  5. 5. The display module of claim 4, wherein the backlight module comprises a back plate and a light source assembly mounted to the back plate, the light distribution element being disposed between the back plate and the light source assembly.
  6. 6. The display module of claim 5, wherein the back plate is a transparent back plate.
  7. 7. The display module of claim 5, wherein the light source assembly comprises a first light source and a first light guide plate, one end of the first light guide plate faces the light emitting side of the first light source, one side of the first light guide plate faces the first liquid crystal display panel, and the other side of the first light guide plate faces the second liquid crystal display panel; The light distribution element is arranged between the back plate and the other side of the first light guide plate.
  8. 8. The display module of any one of claims 3 to 7, wherein the first liquid crystal display panel comprises a first polarizer, a first array substrate, a first counter substrate, and a second polarizer, the first polarizer is disposed on a side of the first array substrate near the backlight module, and the second polarizer is disposed on a side of the first counter substrate far from the backlight module.
  9. 9. The display module of claim 8, wherein the second liquid crystal display panel is a transmissive liquid crystal display panel, the second liquid crystal display panel comprises a third polarizer, a second array substrate, a second opposite substrate and a fourth polarizer, the third polarizer is disposed on a side of the second array substrate close to the backlight module, and the fourth polarizer is disposed on a side of the second opposite substrate far from the backlight module; The direction of the transmission axis of the first polarizer is different from the direction of the transmission axis of the third polarizer, and the direction of the transmission axis of the second polarizer is the same as the direction of the transmission axis of the third polarizer.
  10. 10. The display module of claim 9, wherein a direction of a pass axis of the first polarizer is perpendicular to a direction of a pass axis of the third polarizer.
  11. 11. The display module of claim 1, wherein the light distribution element is configured to transmit light from the backlight module to the first liquid crystal display panel and to block light from the backlight module from transmitting to the second liquid crystal display panel, and wherein the first liquid crystal display panel is a transmissive liquid crystal display panel and the second liquid crystal display panel is a total reflection liquid crystal display panel.
  12. 12. The display module of claim 11, wherein the light distribution element comprises a reflective layer for reflecting light from the backlight module to the first liquid crystal display panel.
  13. 13. The display module of claim 12, wherein the reflective layer is disposed on a side of the second liquid crystal display panel that is adjacent to the first liquid crystal display panel.
  14. 14. The display module of claim 13, wherein the backlight module comprises a back plate and a light source assembly mounted to the back plate; The back plate is a transparent back plate, so as to transmit light rays of the backlight module to the reflecting layer and allow the light rays reflected by the reflecting layer to pass through.
  15. 15. The display module of claim 11, further comprising an auxiliary light source assembly for emitting light from the light exit side of the second liquid crystal display panel toward the second liquid crystal display panel.
  16. 16. The display module of claim 15, wherein the auxiliary light source assembly comprises a second light source and a second light guide plate, one end of the second light guide plate faces the light emitting side of the second light source, and one side of the second light guide plate faces the second liquid crystal display panel.
  17. 17. The display module of claim 16, wherein the backlight module comprises a back plate, the second light source being fixed to the back plate.
  18. 18. The display module of claim 1, wherein the backlight module comprises a light source assembly, and the light distribution element is disposed between the light source assembly and the second liquid crystal display panel.
  19. 19. A display device comprising a display module according to any one of claims 1 to 18.

Description

Display module and display device Technical Field The present application relates to the field of display technologies, and in particular, to a display module and a display device. Background In recent years, the form of display devices has been greatly changed, such as curved surfaces, double-sided displays, folding, etc., and among them, double-sided display devices are widely used in business places such as counters, conference rooms, etc. because of their convenience of communication. The existing double-sided display device is thick and heavy, and the internal structure of the device generally comprises two sets of backlight structures, namely two sets of light bars and an optical film, and the structure is complex and the power consumption is high. Therefore, it is necessary to provide a display module and a display device to improve the defect. Disclosure of utility model The embodiment of the application provides a display module and a display device, which can simplify the structure of the display module and reduce the power consumption. In order to achieve the above object, according to a first aspect of the present application, there is provided a display module comprising: a first liquid crystal display panel; The second liquid crystal display panel is arranged on one side, far away from the light emitting side of the first liquid crystal display panel, of the first liquid crystal display panel; The backlight module is arranged between the first liquid crystal display panel and the second liquid crystal display panel; the display module further comprises a light distribution element, wherein the light distribution element is used for distributing light rays of the backlight module to the first liquid crystal display panel and the second liquid crystal display panel. Optionally, the light distribution element is configured to transmit light of the backlight module to the first liquid crystal display panel and the second liquid crystal display panel. Optionally, the first liquid crystal display panel is a transmissive liquid crystal display panel, and the second liquid crystal display panel is a transmissive liquid crystal display panel or a transflective liquid crystal display panel. Optionally, the light distribution element includes an optical film for reflecting a first light ray and transmitting a second light ray, and the polarization directions of the first light ray and the second light ray are different. Optionally, the backlight module includes a back plate and a light source assembly mounted on the back plate, and the light distribution element is disposed between the back plate and the light source assembly. Optionally, the back plate is a transparent back plate. Optionally, the light source assembly includes a first light source and a first light guide plate, one end of the first light guide plate faces the light emitting side of the first light source, one side of the first light guide plate faces the first liquid crystal display panel, and the other side of the first light guide plate faces the second liquid crystal display panel; The light distribution element is arranged between the back plate and the other side of the first light guide plate. Optionally, the first liquid crystal display panel includes a first polarizer, a first array substrate, a first opposite substrate and a second polarizer, the first polarizer is disposed on one side of the first array substrate, which is close to the backlight module, and the second polarizer is disposed on one side of the first opposite substrate, which is far away from the backlight module. Optionally, the second liquid crystal display panel is a transmissive liquid crystal display panel, and the second liquid crystal display panel includes a third polarizer, a second array substrate, a second opposite substrate, and a fourth polarizer, where the third polarizer is disposed on a side of the second array substrate, which is close to the backlight module, and the fourth polarizer is disposed on a side of the second opposite substrate, which is far away from the backlight module; The direction of the transmission axis of the first polarizer is different from the direction of the transmission axis of the third polarizer, and the direction of the transmission axis of the second polarizer is the same as the direction of the transmission axis of the third polarizer. Optionally, the direction of the transmission axis of the first polarizer is perpendicular to the direction of the transmission axis of the third polarizer. Optionally, the light distribution element is configured to transmit light of the backlight module to the first liquid crystal display panel and is configured to prevent the light of the backlight module from being transmitted to the second liquid crystal display panel, where the first liquid crystal display panel is a transmissive liquid crystal display panel and the second liquid crystal display panel is a total reflection liqui