Search

KR-102964513-B1 - Display device having a barrier panel on a display panel

KR102964513B1KR 102964513 B1KR102964513 B1KR 102964513B1KR-102964513-B1

Abstract

The present invention relates to a display device capable of optionally implementing 2D images and 3D images. The display device may include a display panel and a barrier panel. The barrier panel may include a barrier liquid crystal layer located between a first barrier substrate and a second barrier substrate. Conductive blocks may be positioned side by side within an active area of the barrier panel. Channel electrodes of the barrier panel may traverse the conductive blocks in one direction. The conductive blocks and the channel electrodes may be located between the first barrier substrate and the barrier liquid crystal layer. Accordingly, the contrast ratio of the 2D images and 3D images implemented in the display device may be improved.

Inventors

  • 진유용
  • 강훈
  • 김동연
  • 전욱
  • 임희진
  • 이용구
  • 장주훈

Assignees

  • 엘지디스플레이 주식회사

Dates

Publication Date
20260513
Application Date
20190527

Claims (20)

  1. A display driving unit that drives a display panel; A barrier panel comprising conductive blocks positioned on the above-mentioned display panel and positioned side-by-side within an active area, channel electrodes traversing each conductive block in one direction, and block electrodes traversing the active area parallel to the channel electrodes; and The barrier driving unit controlling the conductive blocks, the channel electrodes, and the block electrodes, wherein The conductive blocks, the channel electrodes, and the block electrodes are located between the first barrier substrate and the barrier liquid crystal layer of the barrier panel, and Each block electrode is electrically connected to one of the conductive blocks, and Each channel electrode crosses multiple conductive blocks, and Each conductive block is connected to at least two block electrodes, and The above barrier panel is a display device further comprising connecting electrodes that connect one end of block electrodes connected to the same conductive block.
  2. In Article 1, The above channel electrodes are spaced apart at regular intervals in a display device.
  3. delete
  4. In Article 1, The above block electrodes are a display device located between the above channel electrodes.
  5. delete
  6. In Article 1, The above connecting electrodes are a display device located outside the active region.
  7. In Article 1, The above connecting electrodes are a display device comprising a material different from the above block electrodes.
  8. In Article 7, A display device in which the electrical conductivity of the above connecting electrodes is higher than the electrical conductivity of the above block electrodes.
  9. In Article 7, The barrier panel further includes a grounding wire extending along the edge of the first barrier substrate, wherein A display device in which the above connecting electrodes include the same material as the above ground wiring.
  10. In Article 1, The above connecting electrodes further include block links connecting the barrier driving unit, A display device in which the other end of the block electrodes connected to the same conductive block is connected to the same block link.
  11. In Article 1, A display device in which at least one of the above channel electrodes is located between adjacent conductive blocks.
  12. In Article 1, A display device in which each channel electrode crosses at least two conductive blocks.
  13. A first barrier substrate located on a display panel; A lower barrier insulating film located on the first barrier substrate; Block electrodes spaced apart from each other and located on the lower barrier insulating film; An intermediate barrier insulating film located on the above block electrodes; Conductive blocks located on the above intermediate barrier insulating film and spaced apart from each other; An upper barrier insulating film located on the above conductive blocks; Channel electrodes spaced apart from each other and located on the upper barrier insulating film; A barrier liquid crystal layer located on the above channel electrodes; and A second barrier substrate located on the above barrier liquid crystal layer, comprising: Each conductive block has a width greater than each channel electrode, and Each block electrode is electrically connected to one of the conductive blocks, and Each channel electrode crosses multiple conductive blocks, and Each block electrode is connected to one of the conductive blocks through block through-holes penetrating the intermediate barrier insulating film, and The apparatus further comprises connecting electrodes spaced apart from each other and positioned between the first barrier substrate and the lower barrier insulating film, The above connecting electrodes are located on the outside of the conductive blocks, and Each conductive block is connected to at least two block electrodes, and A display device in which block electrodes connected to the same conductive block are connected to one of the connecting electrodes through connecting through holes penetrating the lower barrier insulating film.
  14. In Article 13, The number of channel electrodes crossing each conductive block is the same for the display device.
  15. delete
  16. In Article 13, A display device in which each block electrode has a width smaller than each conductive block.
  17. delete
  18. In Article 13, A display device in which the transparency of the above block electrodes is higher than the transparency of the above connecting electrodes.
  19. In Article 13, The system further includes channel links located between the first barrier substrate and the lower barrier insulating film and spaced apart from each other, The above channel links are located on the outside of the above conductive blocks, and Each channel electrode is connected to one of the channel links through channel penetration holes penetrating the lower barrier insulating film, the middle barrier insulating film, and the upper barrier insulating film, and The above channel links are a display device comprising the same material as the above connecting electrodes.
  20. In Article 13, The above barrier liquid crystal layer is a display device comprising a liquid crystal in a normally black mode.

Description

Display device having a barrier panel located on a display panel The present invention relates to a display device in which a barrier panel is positioned on a display panel to selectively implement 2D images and 3D images. Generally, a display device includes a display panel that implements an image. For example, the display panel may include a liquid crystal panel including liquid crystals and an OLED panel including light-emitting elements. The display device may further include a barrier panel. The barrier panel may be located on the display panel. For example, the barrier panel may be located between the display panel and the user. An image emitted from the display panel may be separated by the barrier panel. For example, the barrier panel may provide different images to the user's left and right eyes. Accordingly, the display device may selectively provide 2D images and 3D images to the user using the barrier panel. The barrier panel may include channel electrodes that traverse an active area through which light emitted from the display panel passes in one direction. The barrier panel may form light-transmitting areas and light-blocking areas using the channel electrodes. The light-transmitting areas and the light-blocking areas may be positioned side by side in a direction perpendicular to the direction in which the channel electrodes extend. However, the display device cannot adjust the light transmittance of the barrier panel by region. Accordingly, it may be difficult to significantly improve the contrast ratio of 2D images and 3D images implemented in the display device. FIG. 1 is a schematic diagram showing a display device according to an embodiment of the present invention. FIG. 2 is a drawing showing a display panel and a barrier panel of a display device according to an embodiment of the present invention. Figure 3 is an enlarged view of the P region of Figure 2. FIG. 4 is a schematic diagram showing the plan of a barrier panel of a display device according to an embodiment of the present invention. Figure 5a is a drawing showing a cross-section cut along the line I-I' of Figure 4. Figure 5b is a drawing showing a cross-section cut along the line II-II' of Figure 4. Figure 5c is a drawing showing a cross-section cut along the line III-III' of Figure 4. FIGS. 6 to 17c are drawings sequentially illustrating the formation process of a barrier panel of a display device according to an embodiment of the present invention. FIGS. 18 to 22 are drawings showing a display device according to another embodiment of the present invention. Detailed information regarding the above-mentioned objectives, technical configuration, and resulting effects of the present invention will be more clearly understood through the following detailed description with reference to the drawings illustrating embodiments of the present invention. Here, since the embodiments of the present invention are provided to ensure that the technical concept of the present invention is sufficiently conveyed to those skilled in the art, the present invention may be embodied in other forms so as not to be limited to the embodiments described below. Additionally, parts indicated by the same reference number throughout the specification refer to the same components, and the length and thickness of layers or regions in the drawings may be exaggerated for convenience. Furthermore, where it is stated that a first component is "on" a second component, this includes not only the case where the first component is located on the upper side in direct contact with the second component, but also the case where a third component is located between the first component and the second component. Here, the terms first, second, etc. are used to describe various components and to distinguish one component from another. However, within the scope of the technical concept of the present invention, the first component and the second component may be named arbitrarily for the convenience of those skilled in the art. The terms used in the specification of the present invention are used merely to describe specific embodiments and are not intended to limit the invention. For example, a component expressed in the singular includes a plurality of components unless the context clearly implies only the singular. Furthermore, in the specification of the present invention, terms such as "comprising" or "having" are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Additionally, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as generally understood by those skilled in the art to which the present invention pertains. Terms such as those defined