RG-300

RG-300掌机图片
名称 RG-300
别名 周哥RG300
品牌 Anbernic
发布时间 2019 / 06
操作系统 开源系统
机身颜色 透黑色,灰色
外观尺寸 119 mm x 82 mm x 25 mm
外壳材质 塑料
重量 220 克
握持类型 竖版
屏幕类型 IPS
屏幕尺寸 3.0 英寸
屏幕分辨率 320 x 240
屏幕PPI 133.33
屏幕比例 4:3
屏幕刷新率 60Hz
屏幕色域 -
屏幕最高亮度 -
处理器 Ingenic JZ4760B
CPU XBurst
CPU主频 528 MHz - 740 MHz
CPU核心和线程数 1核1线程
GPU Vivante GC200
GPU核心频率 250 - 375 MHz
内存 128 MB DDR2
存储 内置 & 外置 MicroSD
电池 1800 mAh BP-5L(可更换)
散热
连接性
视频输出
音频输出 3.5毫米耳机接口
扬声器 单声道
振动
其他传感器
起售价格 $60
价格区间 $050 - $75
模拟器游戏支持 大多数 SNES 以 60 FPS 运行,大多数 2D PS1 运行良好(并非全部以 60 FPS 运行);少量较复杂的3D游戏模拟有问题会出现卡顿和掉帧

关于RG-300的分辨率的补充说明和讨论

The 960 by 480 panels in these LCDs only have 320 x 240 logical pixels. It’s my understanding that you cannot draw to this screen at any other resolution. That is, in CRT terms, you cannot resolve more than 320 distinct white and black lines on that screen. https://en.wikipedia.org/wiki/Television_lines. Academics please respond.

The factory arrives at that stupid number by counting all subpixels. Dividing by three to make way for R, G, B, subpixels, we arrive at 320×480. Now here is the weird part. It’s a “RGB-Delta” array, basically this means there is a top RGB set and a lower RGB set that is offset to the side by some amount. Somewhere out there you can find an academic paper with “RGB-Delta” searching, I saw one with good pictures, but I can’t find it now.

The effect of this is that straight lines white lines become tiny little back and forth zig-zags. The screen is similar in nature to the one in the GB Boy, only scaled to a higher DPI.

The supposed advantage of this subpixel rendering method is that it reduces chroma artifacting. This is seen as a feature in the video camera market for which these screens were originally produced.

So finally, we arrive at a 320x240 logical resolution, except now all your crisp squares turn into these little diagonal zig-zags.

Now, all that said, you can only really notice this stuff if you bring it close in when you play. It’s great to just put it to fullscreen bilinear and rock out. It has enough vertical and horizontal resolution to display every line of SNES, MD, and NES games, and it runs at 60 hz vsync no tearing. It’s just not as good as V- or H- RGB stripe if you’re into the ‘classic’ lcd look.

RG-300的评分

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