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Liquid crystal panel and transmission-reflection type liquid crystal display (LCD)

A liquid crystal panel and substrate technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of waste of light sources, reduction of backlight utilization and light efficiency, and unusable light, so as to reduce power consumption, improve utilization and light efficiency effect

Active Publication Date: 2013-04-03
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In the prior art, the light emitted by the backlight source 12 is directed to the transmission area and the reflection area at the same time, and the light directed to the transmission area has been effectively utilized; however, since the reflection layer 4 is generally made of metal materials such as silver, aluminum, chromium, etc. Formed, so the light that shoots to the reflection area is completely blocked and cannot be used, resulting in the waste of some light sources of the backlight 12, reducing the utilization rate and light efficiency of the backlight

Method used

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  • Liquid crystal panel and transmission-reflection type liquid crystal display (LCD)
  • Liquid crystal panel and transmission-reflection type liquid crystal display (LCD)
  • Liquid crystal panel and transmission-reflection type liquid crystal display (LCD)

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Embodiment 1

[0031] In this embodiment, a transflective liquid crystal display, the transflective liquid crystal display includes a liquid crystal panel and a backlight arranged on one side of the liquid crystal panel, the liquid crystal panel is provided with light that can transmit light from the backlight Parts that reflect back to the side of the backlight. Wherein, the component capable of reflecting the light of the backlight back to the side of the backlight is an internal reflection layer, and the side of the internal reflection layer facing the backlight is a reflection surface.

[0032] The liquid crystal panel has a plurality of pixel areas, each pixel area includes at least one sub-pixel area, the sub-pixel area includes a transmission area and a reflection area, the internal reflection layer is arranged in the reflection area, and the The reflective surface of the internal reflective layer faces the backlight side. Specifically, the liquid crystal panel includes an array subs...

Embodiment 2

[0042] The difference between this embodiment and Embodiment 1 is that in the liquid crystal panel of this embodiment, if Figure 4A As shown, the internal reflection layer 7 is obliquely arranged on the second substrate 10, and the reflection surface of the internal reflection layer faces the transmission area of ​​the same sub-pixel area, and the connection between the internal reflection layer 7 and the second substrate 10 The angle formed between them is less than or equal to 20°, so as to meet the thickness requirement of the liquid crystal cell of the transflective liquid crystal display.

[0043] In this embodiment, in the manufacturing process of the array substrate, such as Figure 4A and Figure 4B As shown, first use a transparent resin material (the same material as the transparent resin used in the resin layer 5) to form a lower triangular spacer on the second substrate 10 at a position corresponding to the reflective area close to the transmissive area of ​​the ...

Embodiment 3

[0047] The difference between this embodiment and Embodiment 1 or 2 is that the reflective surface of the internal reflection layer 7 in the liquid crystal panel in this embodiment is a rough surface, that is, the internal reflection surface is diffuse reflection. The light emitted by the backlight to the liquid crystal panel is projected on the rough surface of the internal reflection layer 7 and reflected in all directions, such as Figure 5 shown. In this embodiment, through the diffuse reflection surface of the internal reflection surface 4, the light reflected back to the backlight side in all directions is relatively uniform, and the light is relatively dispersed, so as not to cause local bright spots or local dark spots.

[0048] In this embodiment, in the manufacturing process of the array substrate, if the internal reflection surface 7 is arranged in parallel on the second substrate, then a plurality of dispersed reflectors are arranged on the area corresponding to th...

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Abstract

The invention belongs to the field of liquid crystal display technologies and relates to a liquid crystal panel and a transmission-reflection type liquid crystal display (LCD). The liquid crystal panel is provided with a plurality of pixel regions, wherein each pixel region comprises at least one subpixel region, each subpixel region comprises a transmission region and a reflection region, and a component which can reflect light of a backlight source to a backlight source side is arranged in each reflection region. According to the liquid crystal panel and the transmission-reflection type LCD, internal reflection layers are arranged in the reflection regions of the liquid crystal panel and used for reflecting light, emitted by the backlight source in the reflection regions, back to the backlight source, so that the utilization ratio and light efficiency of the backlight source are increased, and the power consumption of the transmission-reflection type LCD is reduced.

Description

technical field [0001] The invention belongs to the technical field of liquid crystal display and relates to a liquid crystal panel and a transflective liquid crystal display. Background technique [0002] Currently, Liquid Crystal Display (LCD for short) has become a mainstream product in the market due to its excellent performance and mature technology. Liquid crystal displays are classified according to the type of light source, and can be divided into transmissive, reflective, and transflective (also called transflective). Among them, the transflective liquid crystal display combines the advantages of the reflective liquid crystal display and the transmissive liquid crystal display, and is suitable for both indoor and outdoor use, so it has been widely used in portable mobile electronic devices. [0003] Liquid crystal panel is a key component in liquid crystal display, such as figure 1 As shown, the liquid crystal panel is mainly formed by combining a color filter sub...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/13357G02F1/1343
Inventor 谢畅
Owner BOE TECH GRP CO LTD
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