A display substrate and display panel
A technology of display substrate and light-transmitting area, applied in instruments, nonlinear optics, optics, etc., can solve the problem of low penetration rate of reflected light from fingerprints, inability to realize under-screen optical fingerprint recognition, and inability to meet the requirements of under-screen fingerprints. Light transmittance and other issues to achieve the effect of improving touch sensitivity and accuracy
Active Publication Date: 2022-05-27
BOE TECH GRP CO LTD +1
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Problems solved by technology
However, for the traditional thin film transistor liquid crystal display (TFT-LCD), in order to avoid light leakage, a black matrix (BM) is arranged between the R (red), G (green), and B (blue) sub-pixels on the color filter substrate. Covering, because of the existence of BM, the fingerprint reflection light transmittance is low, which cannot meet the high light transmittance requirements of the fingerprint under the screen, so that the optical fingerprint recognition under the screen cannot be well realized
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[0028] In order for those skilled in the art to better understand the technical solutions of the present invention, a display substrate and a display panel of the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0029] At present, the traditional display substrates that can realize the optical fingerprint identification scheme are such as figure 1 As shown in FIG. 2 , when the finger 15 is irradiated with light, it returns to the sensor layer 2 in the display substrate through the reflection of the valley ridge pattern of the finger, and is thus optically sensed by the sensor layer 2 because the black matrix on the color filter layer 1 With the existence of 12, light cannot pass through the black matrix 12 between the color filters 11 of different colors, but can only transmit from the color filters 11 of different colors such as red (R), green (G), and blue (B) to the sensor layer. 2. The red c...
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The invention provides a display substrate and a display panel. The display substrate includes a color filter layer and a sensor layer arranged on the light-incident side of the color filter layer. The color filter layer includes color filters of different colors and a black matrix arranged between the color filters of different colors. In the light-transmitting area where the matrix is located, the display substrate also includes a light-transmitting switching structure. The light-transmitting switching structure is arranged between the color filter layer and the sensor layer, and is set corresponding to the light-transmitting area. The light area transmits light to the sensor layer, and in the touch state of the display substrate, the light reflected by the touch object is transmitted to the sensor layer through the light transmission area. The display substrate can not only block the display light in the light-transmitting area in the display state to avoid display light leakage, but also not block the transmitted light in the light-transmitting area in the touch state, so that the light reflected by the touch object is transmitted from the light-transmitting area to the sensor. Layer, improve the light transmittance for optical touch object recognition.
Description
technical field [0001] The invention belongs to the field of display technology, and in particular relates to a display substrate and a display panel. Background technique [0002] With the continuous development of technology, the screen ratio of mobile terminals such as mobile phones is getting higher and higher, and full-screen mobile terminals have become a development trend. The traditional fingerprint unlocking will occupy a certain proportion of the screen, so the fingerprint recognition under the screen has become a It is a reliable technical solution. Currently, the most commonly used under-screen fingerprint recognition is an optical fingerprint recognition scheme. identify. However, for the traditional thin film transistor liquid crystal display (TFT-LCD), in order to avoid light leakage, a black matrix (BM) is arranged between the R (red), G (green), and B (blue) sub-pixels on the color filter substrate. Covering, because of the existence of BM, the penetration...
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IPC IPC(8): G02F1/1335G02F1/167G02F1/1676G02F1/1333
CPCG02F1/133512G02F1/167G02F1/1676G02F1/13338
Inventor 曾文宇朱强李虎李双君郑彪赵雪梅张冰张萌
Owner BOE TECH GRP CO LTD